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authorOliver Scherer <github35764891676564198441@oli-obk.de>2020-04-25 11:01:43 +0200
committerOliver Scherer <github35764891676564198441@oli-obk.de>2020-04-27 15:16:12 +0200
commita2fdc9468600797762cf7cb7ad4fe32e05c3373e (patch)
treec14bc3743160b2088f92018d56f0c6d3aa057ac2
parentd81f5597ac081707346ac68f6938ad6282fc2fee (diff)
downloadrust-a2fdc9468600797762cf7cb7ad4fe32e05c3373e.tar.gz
rust-a2fdc9468600797762cf7cb7ad4fe32e05c3373e.zip
Emit basic block ids for statements and terminators in MIR only in -Zverbose mode
-rw-r--r--src/librustc_mir/util/pretty.rs10
-rw-r--r--src/test/mir-opt/address-of/rustc.address_of_reborrow.SimplifyCfg-initial.after.mir356
-rw-r--r--src/test/mir-opt/address-of/rustc.borrow_and_cast.SimplifyCfg-initial.after.mir46
-rw-r--r--src/test/mir-opt/array-index-is-temporary/32bit/rustc.main.SimplifyCfg-elaborate-drops.after.mir54
-rw-r--r--src/test/mir-opt/array-index-is-temporary/64bit/rustc.main.SimplifyCfg-elaborate-drops.after.mir54
-rw-r--r--src/test/mir-opt/basic_assignment/rustc.main.SimplifyCfg-initial.after.mir60
-rw-r--r--src/test/mir-opt/box_expr/rustc.main.ElaborateDrops.before.mir42
-rw-r--r--src/test/mir-opt/byte_slice/rustc.main.SimplifyCfg-elaborate-drops.after.mir16
-rw-r--r--src/test/mir-opt/combine_array_len/32bit/rustc.norm2.InstCombine.diff80
-rw-r--r--src/test/mir-opt/combine_array_len/64bit/rustc.norm2.InstCombine.diff80
-rw-r--r--src/test/mir-opt/const-promotion-extern-static/rustc.BAR-promoted[0].ConstProp.after.mir10
-rw-r--r--src/test/mir-opt/const-promotion-extern-static/rustc.BAR.PromoteTemps.diff37
-rw-r--r--src/test/mir-opt/const-promotion-extern-static/rustc.FOO-promoted[0].ConstProp.after.mir10
-rw-r--r--src/test/mir-opt/const-promotion-extern-static/rustc.FOO.PromoteTemps.diff37
-rw-r--r--src/test/mir-opt/const_allocation/32bit/rustc.main.ConstProp.after.mir16
-rw-r--r--src/test/mir-opt/const_allocation/64bit/rustc.main.ConstProp.after.mir16
-rw-r--r--src/test/mir-opt/const_allocation2/32bit/rustc.main.ConstProp.after.mir16
-rw-r--r--src/test/mir-opt/const_allocation2/64bit/rustc.main.ConstProp.after.mir16
-rw-r--r--src/test/mir-opt/const_allocation3/32bit/rustc.main.ConstProp.after.mir16
-rw-r--r--src/test/mir-opt/const_allocation3/64bit/rustc.main.ConstProp.after.mir16
-rw-r--r--src/test/mir-opt/const_prop/aggregate/rustc.main.ConstProp.diff26
-rw-r--r--src/test/mir-opt/const_prop/array_index/32bit/rustc.main.ConstProp.diff34
-rw-r--r--src/test/mir-opt/const_prop/array_index/64bit/rustc.main.ConstProp.diff34
-rw-r--r--src/test/mir-opt/const_prop/boxes/rustc.main.ConstProp.diff34
-rw-r--r--src/test/mir-opt/const_prop/cast/rustc.main.ConstProp.diff22
-rw-r--r--src/test/mir-opt/const_prop/checked_add/rustc.main.ConstProp.diff20
-rw-r--r--src/test/mir-opt/const_prop/const_prop_fails_gracefully/rustc.main.ConstProp.diff34
-rw-r--r--src/test/mir-opt/const_prop/control-flow-simplification/rustc.hello.ConstProp.diff20
-rw-r--r--src/test/mir-opt/const_prop/control-flow-simplification/rustc.hello.PreCodegen.before.mir4
-rw-r--r--src/test/mir-opt/const_prop/discriminant/32bit/rustc.main.ConstProp.diff42
-rw-r--r--src/test/mir-opt/const_prop/discriminant/64bit/rustc.main.ConstProp.diff42
-rw-r--r--src/test/mir-opt/const_prop/indirect/rustc.main.ConstProp.diff28
-rw-r--r--src/test/mir-opt/const_prop/issue-66971/rustc.main.ConstProp.diff24
-rw-r--r--src/test/mir-opt/const_prop/issue-67019/rustc.main.ConstProp.diff22
-rw-r--r--src/test/mir-opt/const_prop/optimizes_into_variable/32bit/rustc.main.ConstProp.diff64
-rw-r--r--src/test/mir-opt/const_prop/optimizes_into_variable/32bit/rustc.main.SimplifyLocals.after.mir22
-rw-r--r--src/test/mir-opt/const_prop/optimizes_into_variable/64bit/rustc.main.ConstProp.diff64
-rw-r--r--src/test/mir-opt/const_prop/optimizes_into_variable/64bit/rustc.main.SimplifyLocals.after.mir22
-rw-r--r--src/test/mir-opt/const_prop/read_immutable_static/rustc.main.ConstProp.diff40
-rw-r--r--src/test/mir-opt/const_prop/ref_deref/rustc.main.ConstProp.diff20
-rw-r--r--src/test/mir-opt/const_prop/ref_deref/rustc.main.PromoteTemps.diff31
-rw-r--r--src/test/mir-opt/const_prop/ref_deref_project/rustc.main.ConstProp.diff18
-rw-r--r--src/test/mir-opt/const_prop/ref_deref_project/rustc.main.PromoteTemps.diff39
-rw-r--r--src/test/mir-opt/const_prop/reify_fn_ptr/rustc.main.ConstProp.diff22
-rw-r--r--src/test/mir-opt/const_prop/repeat/32bit/rustc.main.ConstProp.diff42
-rw-r--r--src/test/mir-opt/const_prop/repeat/64bit/rustc.main.ConstProp.diff42
-rw-r--r--src/test/mir-opt/const_prop/return_place/rustc.add.ConstProp.diff14
-rw-r--r--src/test/mir-opt/const_prop/return_place/rustc.add.PreCodegen.before.mir4
-rw-r--r--src/test/mir-opt/const_prop/slice_len/32bit/rustc.main.ConstProp.diff50
-rw-r--r--src/test/mir-opt/const_prop/slice_len/64bit/rustc.main.ConstProp.diff50
-rw-r--r--src/test/mir-opt/const_prop/switch_int/rustc.main.ConstProp.diff16
-rw-r--r--src/test/mir-opt/const_prop/switch_int/rustc.main.SimplifyBranches-after-const-prop.diff16
-rw-r--r--src/test/mir-opt/copy_propagation/rustc.test.CopyPropagation.diff18
-rw-r--r--src/test/mir-opt/copy_propagation_arg/rustc.arg_src.CopyPropagation.diff12
-rw-r--r--src/test/mir-opt/copy_propagation_arg/rustc.bar.CopyPropagation.diff18
-rw-r--r--src/test/mir-opt/copy_propagation_arg/rustc.baz.CopyPropagation.diff12
-rw-r--r--src/test/mir-opt/copy_propagation_arg/rustc.foo.CopyPropagation.diff18
-rw-r--r--src/test/mir-opt/deaggregator_test/rustc.bar.Deaggregator.diff18
-rw-r--r--src/test/mir-opt/deaggregator_test_enum/rustc.bar.Deaggregator.diff16
-rw-r--r--src/test/mir-opt/deaggregator_test_enum_2/rustc.test1.Deaggregator.diff42
-rw-r--r--src/test/mir-opt/deaggregator_test_multiple/rustc.test.Deaggregator.diff45
-rw-r--r--src/test/mir-opt/exponential-or/rustc.match_tuple.SimplifyCfg-initial.after.mir62
-rw-r--r--src/test/mir-opt/generator-drop-cleanup/rustc.main-{{closure}}.generator_drop.0.mir40
-rw-r--r--src/test/mir-opt/generator-storage-dead-unwind/rustc.main-{{closure}}.StateTransform.before.mir92
-rw-r--r--src/test/mir-opt/generator-tiny/rustc.main-{{closure}}.generator_resume.0.mir52
-rw-r--r--src/test/mir-opt/inline/inline-any-operand/rustc.bar.Inline.after.mir20
-rw-r--r--src/test/mir-opt/inline/inline-closure-borrows-arg/rustc.foo.Inline.after.mir38
-rw-r--r--src/test/mir-opt/inline/inline-closure-captures/rustc.foo.Inline.after.mir56
-rw-r--r--src/test/mir-opt/inline/inline-closure/rustc.foo.Inline.after.mir38
-rw-r--r--src/test/mir-opt/inline/inline-into-box-place/32bit/rustc.main.Inline.diff45
-rw-r--r--src/test/mir-opt/inline/inline-into-box-place/64bit/rustc.main.Inline.diff45
-rw-r--r--src/test/mir-opt/inline/inline-retag/rustc.bar.Inline.after.mir72
-rw-r--r--src/test/mir-opt/inline/inline-specialization/rustc.main.Inline.diff15
-rw-r--r--src/test/mir-opt/inline/inline-trait-method/rustc.test.Inline.after.mir10
-rw-r--r--src/test/mir-opt/inline/inline-trait-method_2/rustc.test2.Inline.after.mir16
-rw-r--r--src/test/mir-opt/inline/issue-58867-inline-as-ref-as-mut/rustc.a.Inline.after.mir28
-rw-r--r--src/test/mir-opt/inline/issue-58867-inline-as-ref-as-mut/rustc.b.Inline.after.mir34
-rw-r--r--src/test/mir-opt/inline/issue-58867-inline-as-ref-as-mut/rustc.c.Inline.after.mir16
-rw-r--r--src/test/mir-opt/inline/issue-58867-inline-as-ref-as-mut/rustc.d.Inline.after.mir22
-rw-r--r--src/test/mir-opt/issue-38669/rustc.main.SimplifyCfg-initial.after.mir46
-rw-r--r--src/test/mir-opt/issue-41110/rustc.main.ElaborateDrops.after.mir52
-rw-r--r--src/test/mir-opt/issue-41110/rustc.test.ElaborateDrops.after.mir76
-rw-r--r--src/test/mir-opt/issue-41697/32bit/rustc.{{impl}}-{{constant}}.SimplifyCfg-qualify-consts.after.mir10
-rw-r--r--src/test/mir-opt/issue-41697/64bit/rustc.{{impl}}-{{constant}}.SimplifyCfg-qualify-consts.after.mir10
-rw-r--r--src/test/mir-opt/issue-41888/rustc.main.ElaborateDrops.after.mir120
-rw-r--r--src/test/mir-opt/issue-49232/rustc.main.mir_map.0.mir66
-rw-r--r--src/test/mir-opt/issue-62289/rustc.test.ElaborateDrops.before.mir84
-rw-r--r--src/test/mir-opt/loop_test/rustc.main.SimplifyCfg-qualify-consts.after.mir44
-rw-r--r--src/test/mir-opt/match-arm-scopes/rustc.complicated_match.ElaborateDrops.after.mir180
-rw-r--r--src/test/mir-opt/match-arm-scopes/rustc.complicated_match.SimplifyCfg-initial.after.mir208
-rw-r--r--src/test/mir-opt/match_false_edges/rustc.full_tested_match.PromoteTemps.after.mir92
-rw-r--r--src/test/mir-opt/match_false_edges/rustc.full_tested_match2.PromoteTemps.before.mir90
-rw-r--r--src/test/mir-opt/match_false_edges/rustc.main.PromoteTemps.before.mir126
-rw-r--r--src/test/mir-opt/match_test/rustc.main.SimplifyCfg-initial.after.mir82
-rw-r--r--src/test/mir-opt/no-drop-for-inactive-variant/rustc.unwrap.SimplifyCfg-elaborate-drops.after.mir26
-rw-r--r--src/test/mir-opt/no-spurious-drop-after-call/rustc.main.ElaborateDrops.before.mir32
-rw-r--r--src/test/mir-opt/packed-struct-drop-aligned/32bit/rustc.main.SimplifyCfg-elaborate-drops.after.mir52
-rw-r--r--src/test/mir-opt/packed-struct-drop-aligned/64bit/rustc.main.SimplifyCfg-elaborate-drops.after.mir52
-rw-r--r--src/test/mir-opt/remove-never-const/rustc.no_codegen.PreCodegen.after.mir2
-rw-r--r--src/test/mir-opt/remove_fake_borrows/rustc.match_guard.CleanupNonCodegenStatements.diff68
-rw-r--r--src/test/mir-opt/retag/rustc.main-{{closure}}.SimplifyCfg-elaborate-drops.after.mir18
-rw-r--r--src/test/mir-opt/retag/rustc.main.SimplifyCfg-elaborate-drops.after.mir202
-rw-r--r--src/test/mir-opt/retag/rustc.ptr-drop_in_place.Test.SimplifyCfg-make_shim.after.mir8
-rw-r--r--src/test/mir-opt/retag/rustc.{{impl}}-foo.SimplifyCfg-elaborate-drops.after.mir18
-rw-r--r--src/test/mir-opt/retag/rustc.{{impl}}-foo_shr.SimplifyCfg-elaborate-drops.after.mir10
-rw-r--r--src/test/mir-opt/simple-match/32bit/rustc.match_bool.mir_map.0.mir20
-rw-r--r--src/test/mir-opt/simple-match/64bit/rustc.match_bool.mir_map.0.mir20
-rw-r--r--src/test/mir-opt/simplify-arm-identity/rustc.main.SimplifyArmIdentity.diff36
-rw-r--r--src/test/mir-opt/simplify-locals-fixedpoint/rustc.foo.SimplifyLocals.diff66
-rw-r--r--src/test/mir-opt/simplify-locals-removes-unused-consts/rustc.main.SimplifyLocals.diff72
-rw-r--r--src/test/mir-opt/simplify-locals-removes-unused-discriminant-reads/rustc.map.SimplifyLocals.diff17
-rw-r--r--src/test/mir-opt/simplify_cfg/rustc.main.SimplifyCfg-early-opt.diff37
-rw-r--r--src/test/mir-opt/simplify_cfg/rustc.main.SimplifyCfg-initial.diff59
-rw-r--r--src/test/mir-opt/simplify_if/rustc.main.SimplifyBranches-after-const-prop.diff26
-rw-r--r--src/test/mir-opt/simplify_match/rustc.main.SimplifyBranches-after-copy-prop.diff24
-rw-r--r--src/test/mir-opt/simplify_try/rustc.try_identity.SimplifyArmIdentity.diff34
-rw-r--r--src/test/mir-opt/simplify_try/rustc.try_identity.SimplifyBranchSame.after.mir14
-rw-r--r--src/test/mir-opt/simplify_try/rustc.try_identity.SimplifyLocals.after.mir4
-rw-r--r--src/test/mir-opt/slice-drop-shim/32bit/rustc.ptr-drop_in_place.[std__string__String].AddMovesForPackedDrops.before.mir68
-rw-r--r--src/test/mir-opt/slice-drop-shim/64bit/rustc.ptr-drop_in_place.[std__string__String].AddMovesForPackedDrops.before.mir68
-rw-r--r--src/test/mir-opt/storage_live_dead_in_statics/rustc.XXX.mir_map.0.mir202
-rw-r--r--src/test/mir-opt/storage_ranges/rustc.main.nll.0.mir46
-rw-r--r--src/test/mir-opt/uniform_array_move_out/rustc.move_out_by_subslice.mir_map.0.mir74
-rw-r--r--src/test/mir-opt/uniform_array_move_out/rustc.move_out_from_end.mir_map.0.mir74
-rw-r--r--src/test/mir-opt/uninhabited-enum/rustc.process_never.SimplifyLocals.after.mir8
-rw-r--r--src/test/mir-opt/uninhabited-enum/rustc.process_void.SimplifyLocals.after.mir10
-rw-r--r--src/test/mir-opt/uninhabited_enum_branching/rustc.main.SimplifyCfg-after-uninhabited-enum-branching.after.mir52
-rw-r--r--src/test/mir-opt/uninhabited_enum_branching/rustc.main.UninhabitedEnumBranching.diff72
-rw-r--r--src/test/mir-opt/unreachable/rustc.main.UnreachablePropagation.diff50
-rw-r--r--src/test/mir-opt/unreachable_asm/rustc.main.UnreachablePropagation.diff56
-rw-r--r--src/test/mir-opt/unreachable_asm_2/rustc.main.UnreachablePropagation.diff68
-rw-r--r--src/test/mir-opt/unreachable_diverging/rustc.main.UnreachablePropagation.diff54
-rw-r--r--src/test/mir-opt/unusual-item-types/32bit/rustc.E-V-{{constant}}.mir_map.0.mir6
-rw-r--r--src/test/mir-opt/unusual-item-types/32bit/rustc.Test-X-{{constructor}}.mir_map.0.mir6
-rw-r--r--src/test/mir-opt/unusual-item-types/32bit/rustc.ptr-drop_in_place.std__vec__Vec_i32_.AddMovesForPackedDrops.before.mir18
-rw-r--r--src/test/mir-opt/unusual-item-types/32bit/rustc.{{impl}}-ASSOCIATED_CONSTANT.mir_map.0.mir6
-rw-r--r--src/test/mir-opt/unusual-item-types/64bit/rustc.E-V-{{constant}}.mir_map.0.mir6
-rw-r--r--src/test/mir-opt/unusual-item-types/64bit/rustc.Test-X-{{constructor}}.mir_map.0.mir6
-rw-r--r--src/test/mir-opt/unusual-item-types/64bit/rustc.ptr-drop_in_place.std__vec__Vec_i32_.AddMovesForPackedDrops.before.mir18
-rw-r--r--src/test/mir-opt/unusual-item-types/64bit/rustc.{{impl}}-ASSOCIATED_CONSTANT.mir_map.0.mir6
-rw-r--r--src/test/mir-opt/while-storage/rustc.while_loop.PreCodegen.after.mir44
141 files changed, 3004 insertions, 3067 deletions
diff --git a/src/librustc_mir/util/pretty.rs b/src/librustc_mir/util/pretty.rs
index 8829b10d5dd..33542fb5d23 100644
--- a/src/librustc_mir/util/pretty.rs
+++ b/src/librustc_mir/util/pretty.rs
@@ -305,9 +305,9 @@ where
         let indented_body = format!("{0}{0}{1:?};", INDENT, statement);
         writeln!(
             w,
-            "{:A$} // {:?}: {}",
+            "{:A$} // {}{}",
             indented_body,
-            current_location,
+            if tcx.sess.verbose() { format!("{:?}: ", current_location) } else { String::new() },
             comment(tcx, statement.source_info),
             A = ALIGN,
         )?;
@@ -326,9 +326,9 @@ where
     let indented_terminator = format!("{0}{0}{1:?};", INDENT, data.terminator().kind);
     writeln!(
         w,
-        "{:A$} // {:?}: {}",
+        "{:A$} // {}{}",
         indented_terminator,
-        current_location,
+        if tcx.sess.verbose() { format!("{:?}: ", current_location) } else { String::new() },
         comment(tcx, data.terminator().source_info),
         A = ALIGN,
     )?;
@@ -455,7 +455,7 @@ fn write_scope_tree(
         )?;
     }
 
-    // Local variable types (including the user's name in a comment).
+    // Local variable types.
     for (local, local_decl) in body.local_decls.iter_enumerated() {
         if (1..body.arg_count + 1).contains(&local.index()) {
             // Skip over argument locals, they're printed in the signature.
diff --git a/src/test/mir-opt/address-of/rustc.address_of_reborrow.SimplifyCfg-initial.after.mir b/src/test/mir-opt/address-of/rustc.address_of_reborrow.SimplifyCfg-initial.after.mir
index d0b5c401bea..9742530bd81 100644
--- a/src/test/mir-opt/address-of/rustc.address_of_reborrow.SimplifyCfg-initial.after.mir
+++ b/src/test/mir-opt/address-of/rustc.address_of_reborrow.SimplifyCfg-initial.after.mir
@@ -126,201 +126,201 @@ fn address_of_reborrow() -> () {
     }
 
     bb0: {
-        StorageLive(_1);                 // bb0[0]: scope 0 at $DIR/address-of.rs:4:9: 4:10
-        StorageLive(_2);                 // bb0[1]: scope 0 at $DIR/address-of.rs:4:14: 4:21
-        _2 = [const 0i32; 10];           // bb0[2]: scope 0 at $DIR/address-of.rs:4:14: 4:21
+        StorageLive(_1);                 // scope 0 at $DIR/address-of.rs:4:9: 4:10
+        StorageLive(_2);                 // scope 0 at $DIR/address-of.rs:4:14: 4:21
+        _2 = [const 0i32; 10];           // scope 0 at $DIR/address-of.rs:4:14: 4:21
                                          // ty::Const
                                          // + ty: i32
                                          // + val: Value(Scalar(0x00000000))
                                          // mir::Constant
                                          // + span: $DIR/address-of.rs:4:15: 4:16
                                          // + literal: Const { ty: i32, val: Value(Scalar(0x00000000)) }
-        _1 = &_2;                        // bb0[3]: scope 0 at $DIR/address-of.rs:4:13: 4:21
-        FakeRead(ForLet, _1);            // bb0[4]: scope 0 at $DIR/address-of.rs:4:9: 4:10
-        StorageLive(_3);                 // bb0[5]: scope 1 at $DIR/address-of.rs:5:9: 5:14
-        StorageLive(_4);                 // bb0[6]: scope 1 at $DIR/address-of.rs:5:22: 5:29
-        _4 = [const 0i32; 10];           // bb0[7]: scope 1 at $DIR/address-of.rs:5:22: 5:29
+        _1 = &_2;                        // scope 0 at $DIR/address-of.rs:4:13: 4:21
+        FakeRead(ForLet, _1);            // scope 0 at $DIR/address-of.rs:4:9: 4:10
+        StorageLive(_3);                 // scope 1 at $DIR/address-of.rs:5:9: 5:14
+        StorageLive(_4);                 // scope 1 at $DIR/address-of.rs:5:22: 5:29
+        _4 = [const 0i32; 10];           // scope 1 at $DIR/address-of.rs:5:22: 5:29
                                          // ty::Const
                                          // + ty: i32
                                          // + val: Value(Scalar(0x00000000))
                                          // mir::Constant
                                          // + span: $DIR/address-of.rs:5:23: 5:24
                                          // + literal: Const { ty: i32, val: Value(Scalar(0x00000000)) }
-        _3 = &mut _4;                    // bb0[8]: scope 1 at $DIR/address-of.rs:5:17: 5:29
-        FakeRead(ForLet, _3);            // bb0[9]: scope 1 at $DIR/address-of.rs:5:9: 5:14
-        StorageLive(_5);                 // bb0[10]: scope 2 at $DIR/address-of.rs:7:5: 7:18
-        StorageLive(_6);                 // bb0[11]: scope 2 at $DIR/address-of.rs:7:5: 7:18
-        _6 = &raw const (*_1);           // bb0[12]: scope 2 at $DIR/address-of.rs:7:5: 7:6
-        AscribeUserType(_6, o, UserTypeProjection { base: UserType(0), projs: [] }); // bb0[13]: scope 2 at $DIR/address-of.rs:7:5: 7:18
-        _5 = _6;                         // bb0[14]: scope 2 at $DIR/address-of.rs:7:5: 7:18
-        StorageDead(_6);                 // bb0[15]: scope 2 at $DIR/address-of.rs:7:18: 7:19
-        StorageDead(_5);                 // bb0[16]: scope 2 at $DIR/address-of.rs:7:18: 7:19
-        StorageLive(_7);                 // bb0[17]: scope 2 at $DIR/address-of.rs:8:5: 8:26
-        _7 = &raw const (*_1);           // bb0[18]: scope 2 at $DIR/address-of.rs:8:5: 8:6
-        StorageDead(_7);                 // bb0[19]: scope 2 at $DIR/address-of.rs:8:26: 8:27
-        StorageLive(_8);                 // bb0[20]: scope 2 at $DIR/address-of.rs:9:5: 9:25
-        StorageLive(_9);                 // bb0[21]: scope 2 at $DIR/address-of.rs:9:5: 9:25
-        StorageLive(_10);                // bb0[22]: scope 2 at $DIR/address-of.rs:9:5: 9:6
-        _10 = &raw const (*_1);          // bb0[23]: scope 2 at $DIR/address-of.rs:9:5: 9:6
-        _9 = move _10 as *const dyn std::marker::Send (Pointer(Unsize)); // bb0[24]: scope 2 at $DIR/address-of.rs:9:5: 9:6
-        StorageDead(_10);                // bb0[25]: scope 2 at $DIR/address-of.rs:9:5: 9:6
-        AscribeUserType(_9, o, UserTypeProjection { base: UserType(1), projs: [] }); // bb0[26]: scope 2 at $DIR/address-of.rs:9:5: 9:25
-        _8 = _9;                         // bb0[27]: scope 2 at $DIR/address-of.rs:9:5: 9:25
-        StorageDead(_9);                 // bb0[28]: scope 2 at $DIR/address-of.rs:9:25: 9:26
-        StorageDead(_8);                 // bb0[29]: scope 2 at $DIR/address-of.rs:9:25: 9:26
-        StorageLive(_11);                // bb0[30]: scope 2 at $DIR/address-of.rs:10:5: 10:22
-        StorageLive(_12);                // bb0[31]: scope 2 at $DIR/address-of.rs:10:5: 10:6
-        _12 = &raw const (*_1);          // bb0[32]: scope 2 at $DIR/address-of.rs:10:5: 10:6
-        _11 = move _12 as *const [i32] (Pointer(Unsize)); // bb0[33]: scope 2 at $DIR/address-of.rs:10:5: 10:6
-        StorageDead(_12);                // bb0[34]: scope 2 at $DIR/address-of.rs:10:5: 10:6
-        StorageDead(_11);                // bb0[35]: scope 2 at $DIR/address-of.rs:10:22: 10:23
-        StorageLive(_13);                // bb0[36]: scope 2 at $DIR/address-of.rs:11:5: 11:20
-        StorageLive(_14);                // bb0[37]: scope 2 at $DIR/address-of.rs:11:5: 11:6
-        _14 = &raw const (*_1);          // bb0[38]: scope 2 at $DIR/address-of.rs:11:5: 11:6
-        _13 = move _14 as *const i32 (Pointer(ArrayToPointer)); // bb0[39]: scope 2 at $DIR/address-of.rs:11:5: 11:20
-        StorageDead(_14);                // bb0[40]: scope 2 at $DIR/address-of.rs:11:19: 11:20
-        StorageDead(_13);                // bb0[41]: scope 2 at $DIR/address-of.rs:11:20: 11:21
-        StorageLive(_15);                // bb0[42]: scope 2 at $DIR/address-of.rs:13:9: 13:10
-        _15 = &raw const (*_1);          // bb0[43]: scope 2 at $DIR/address-of.rs:13:23: 13:24
-        FakeRead(ForLet, _15);           // bb0[44]: scope 2 at $DIR/address-of.rs:13:9: 13:10
-        AscribeUserType(_15, o, UserTypeProjection { base: UserType(3), projs: [] }); // bb0[45]: scope 2 at $DIR/address-of.rs:13:12: 13:20
-        StorageLive(_16);                // bb0[46]: scope 3 at $DIR/address-of.rs:14:9: 14:10
-        _16 = &raw const (*_1);          // bb0[47]: scope 3 at $DIR/address-of.rs:14:31: 14:32
-        FakeRead(ForLet, _16);           // bb0[48]: scope 3 at $DIR/address-of.rs:14:9: 14:10
-        AscribeUserType(_16, o, UserTypeProjection { base: UserType(5), projs: [] }); // bb0[49]: scope 3 at $DIR/address-of.rs:14:12: 14:28
-        StorageLive(_17);                // bb0[50]: scope 4 at $DIR/address-of.rs:15:9: 15:10
-        StorageLive(_18);                // bb0[51]: scope 4 at $DIR/address-of.rs:15:30: 15:31
-        _18 = &raw const (*_1);          // bb0[52]: scope 4 at $DIR/address-of.rs:15:30: 15:31
-        _17 = move _18 as *const dyn std::marker::Send (Pointer(Unsize)); // bb0[53]: scope 4 at $DIR/address-of.rs:15:30: 15:31
-        StorageDead(_18);                // bb0[54]: scope 4 at $DIR/address-of.rs:15:30: 15:31
-        FakeRead(ForLet, _17);           // bb0[55]: scope 4 at $DIR/address-of.rs:15:9: 15:10
-        AscribeUserType(_17, o, UserTypeProjection { base: UserType(7), projs: [] }); // bb0[56]: scope 4 at $DIR/address-of.rs:15:12: 15:27
-        StorageLive(_19);                // bb0[57]: scope 5 at $DIR/address-of.rs:16:9: 16:10
-        StorageLive(_20);                // bb0[58]: scope 5 at $DIR/address-of.rs:16:27: 16:28
-        _20 = &raw const (*_1);          // bb0[59]: scope 5 at $DIR/address-of.rs:16:27: 16:28
-        _19 = move _20 as *const [i32] (Pointer(Unsize)); // bb0[60]: scope 5 at $DIR/address-of.rs:16:27: 16:28
-        StorageDead(_20);                // bb0[61]: scope 5 at $DIR/address-of.rs:16:27: 16:28
-        FakeRead(ForLet, _19);           // bb0[62]: scope 5 at $DIR/address-of.rs:16:9: 16:10
-        AscribeUserType(_19, o, UserTypeProjection { base: UserType(9), projs: [] }); // bb0[63]: scope 5 at $DIR/address-of.rs:16:12: 16:24
-        StorageLive(_21);                // bb0[64]: scope 6 at $DIR/address-of.rs:18:5: 18:18
-        StorageLive(_22);                // bb0[65]: scope 6 at $DIR/address-of.rs:18:5: 18:18
-        _22 = &raw const (*_3);          // bb0[66]: scope 6 at $DIR/address-of.rs:18:5: 18:6
-        AscribeUserType(_22, o, UserTypeProjection { base: UserType(10), projs: [] }); // bb0[67]: scope 6 at $DIR/address-of.rs:18:5: 18:18
-        _21 = _22;                       // bb0[68]: scope 6 at $DIR/address-of.rs:18:5: 18:18
-        StorageDead(_22);                // bb0[69]: scope 6 at $DIR/address-of.rs:18:18: 18:19
-        StorageDead(_21);                // bb0[70]: scope 6 at $DIR/address-of.rs:18:18: 18:19
-        StorageLive(_23);                // bb0[71]: scope 6 at $DIR/address-of.rs:19:5: 19:26
-        _23 = &raw const (*_3);          // bb0[72]: scope 6 at $DIR/address-of.rs:19:5: 19:6
-        StorageDead(_23);                // bb0[73]: scope 6 at $DIR/address-of.rs:19:26: 19:27
-        StorageLive(_24);                // bb0[74]: scope 6 at $DIR/address-of.rs:20:5: 20:25
-        StorageLive(_25);                // bb0[75]: scope 6 at $DIR/address-of.rs:20:5: 20:25
-        StorageLive(_26);                // bb0[76]: scope 6 at $DIR/address-of.rs:20:5: 20:6
-        _26 = &raw const (*_3);          // bb0[77]: scope 6 at $DIR/address-of.rs:20:5: 20:6
-        _25 = move _26 as *const dyn std::marker::Send (Pointer(Unsize)); // bb0[78]: scope 6 at $DIR/address-of.rs:20:5: 20:6
-        StorageDead(_26);                // bb0[79]: scope 6 at $DIR/address-of.rs:20:5: 20:6
-        AscribeUserType(_25, o, UserTypeProjection { base: UserType(11), projs: [] }); // bb0[80]: scope 6 at $DIR/address-of.rs:20:5: 20:25
-        _24 = _25;                       // bb0[81]: scope 6 at $DIR/address-of.rs:20:5: 20:25
-        StorageDead(_25);                // bb0[82]: scope 6 at $DIR/address-of.rs:20:25: 20:26
-        StorageDead(_24);                // bb0[83]: scope 6 at $DIR/address-of.rs:20:25: 20:26
-        StorageLive(_27);                // bb0[84]: scope 6 at $DIR/address-of.rs:21:5: 21:22
-        StorageLive(_28);                // bb0[85]: scope 6 at $DIR/address-of.rs:21:5: 21:6
-        _28 = &raw const (*_3);          // bb0[86]: scope 6 at $DIR/address-of.rs:21:5: 21:6
-        _27 = move _28 as *const [i32] (Pointer(Unsize)); // bb0[87]: scope 6 at $DIR/address-of.rs:21:5: 21:6
-        StorageDead(_28);                // bb0[88]: scope 6 at $DIR/address-of.rs:21:5: 21:6
-        StorageDead(_27);                // bb0[89]: scope 6 at $DIR/address-of.rs:21:22: 21:23
-        StorageLive(_29);                // bb0[90]: scope 6 at $DIR/address-of.rs:23:9: 23:10
-        _29 = &raw const (*_3);          // bb0[91]: scope 6 at $DIR/address-of.rs:23:23: 23:24
-        FakeRead(ForLet, _29);           // bb0[92]: scope 6 at $DIR/address-of.rs:23:9: 23:10
-        AscribeUserType(_29, o, UserTypeProjection { base: UserType(13), projs: [] }); // bb0[93]: scope 6 at $DIR/address-of.rs:23:12: 23:20
-        StorageLive(_30);                // bb0[94]: scope 7 at $DIR/address-of.rs:24:9: 24:10
-        _30 = &raw const (*_3);          // bb0[95]: scope 7 at $DIR/address-of.rs:24:31: 24:32
-        FakeRead(ForLet, _30);           // bb0[96]: scope 7 at $DIR/address-of.rs:24:9: 24:10
-        AscribeUserType(_30, o, UserTypeProjection { base: UserType(15), projs: [] }); // bb0[97]: scope 7 at $DIR/address-of.rs:24:12: 24:28
-        StorageLive(_31);                // bb0[98]: scope 8 at $DIR/address-of.rs:25:9: 25:10
-        StorageLive(_32);                // bb0[99]: scope 8 at $DIR/address-of.rs:25:30: 25:31
-        _32 = &raw const (*_3);          // bb0[100]: scope 8 at $DIR/address-of.rs:25:30: 25:31
-        _31 = move _32 as *const dyn std::marker::Send (Pointer(Unsize)); // bb0[101]: scope 8 at $DIR/address-of.rs:25:30: 25:31
-        StorageDead(_32);                // bb0[102]: scope 8 at $DIR/address-of.rs:25:30: 25:31
-        FakeRead(ForLet, _31);           // bb0[103]: scope 8 at $DIR/address-of.rs:25:9: 25:10
-        AscribeUserType(_31, o, UserTypeProjection { base: UserType(17), projs: [] }); // bb0[104]: scope 8 at $DIR/address-of.rs:25:12: 25:27
-        StorageLive(_33);                // bb0[105]: scope 9 at $DIR/address-of.rs:26:9: 26:10
-        StorageLive(_34);                // bb0[106]: scope 9 at $DIR/address-of.rs:26:27: 26:28
-        _34 = &raw const (*_3);          // bb0[107]: scope 9 at $DIR/address-of.rs:26:27: 26:28
-        _33 = move _34 as *const [i32] (Pointer(Unsize)); // bb0[108]: scope 9 at $DIR/address-of.rs:26:27: 26:28
-        StorageDead(_34);                // bb0[109]: scope 9 at $DIR/address-of.rs:26:27: 26:28
-        FakeRead(ForLet, _33);           // bb0[110]: scope 9 at $DIR/address-of.rs:26:9: 26:10
-        AscribeUserType(_33, o, UserTypeProjection { base: UserType(19), projs: [] }); // bb0[111]: scope 9 at $DIR/address-of.rs:26:12: 26:24
-        StorageLive(_35);                // bb0[112]: scope 10 at $DIR/address-of.rs:28:5: 28:16
-        StorageLive(_36);                // bb0[113]: scope 10 at $DIR/address-of.rs:28:5: 28:16
-        _36 = &raw mut (*_3);            // bb0[114]: scope 10 at $DIR/address-of.rs:28:5: 28:6
-        AscribeUserType(_36, o, UserTypeProjection { base: UserType(20), projs: [] }); // bb0[115]: scope 10 at $DIR/address-of.rs:28:5: 28:16
-        _35 = _36;                       // bb0[116]: scope 10 at $DIR/address-of.rs:28:5: 28:16
-        StorageDead(_36);                // bb0[117]: scope 10 at $DIR/address-of.rs:28:16: 28:17
-        StorageDead(_35);                // bb0[118]: scope 10 at $DIR/address-of.rs:28:16: 28:17
-        StorageLive(_37);                // bb0[119]: scope 10 at $DIR/address-of.rs:29:5: 29:24
-        _37 = &raw mut (*_3);            // bb0[120]: scope 10 at $DIR/address-of.rs:29:5: 29:6
-        StorageDead(_37);                // bb0[121]: scope 10 at $DIR/address-of.rs:29:24: 29:25
-        StorageLive(_38);                // bb0[122]: scope 10 at $DIR/address-of.rs:30:5: 30:23
-        StorageLive(_39);                // bb0[123]: scope 10 at $DIR/address-of.rs:30:5: 30:23
-        StorageLive(_40);                // bb0[124]: scope 10 at $DIR/address-of.rs:30:5: 30:6
-        _40 = &raw mut (*_3);            // bb0[125]: scope 10 at $DIR/address-of.rs:30:5: 30:6
-        _39 = move _40 as *mut dyn std::marker::Send (Pointer(Unsize)); // bb0[126]: scope 10 at $DIR/address-of.rs:30:5: 30:6
-        StorageDead(_40);                // bb0[127]: scope 10 at $DIR/address-of.rs:30:5: 30:6
-        AscribeUserType(_39, o, UserTypeProjection { base: UserType(21), projs: [] }); // bb0[128]: scope 10 at $DIR/address-of.rs:30:5: 30:23
-        _38 = _39;                       // bb0[129]: scope 10 at $DIR/address-of.rs:30:5: 30:23
-        StorageDead(_39);                // bb0[130]: scope 10 at $DIR/address-of.rs:30:23: 30:24
-        StorageDead(_38);                // bb0[131]: scope 10 at $DIR/address-of.rs:30:23: 30:24
-        StorageLive(_41);                // bb0[132]: scope 10 at $DIR/address-of.rs:31:5: 31:20
-        StorageLive(_42);                // bb0[133]: scope 10 at $DIR/address-of.rs:31:5: 31:6
-        _42 = &raw mut (*_3);            // bb0[134]: scope 10 at $DIR/address-of.rs:31:5: 31:6
-        _41 = move _42 as *mut [i32] (Pointer(Unsize)); // bb0[135]: scope 10 at $DIR/address-of.rs:31:5: 31:6
-        StorageDead(_42);                // bb0[136]: scope 10 at $DIR/address-of.rs:31:5: 31:6
-        StorageDead(_41);                // bb0[137]: scope 10 at $DIR/address-of.rs:31:20: 31:21
-        StorageLive(_43);                // bb0[138]: scope 10 at $DIR/address-of.rs:33:9: 33:10
-        _43 = &raw mut (*_3);            // bb0[139]: scope 10 at $DIR/address-of.rs:33:21: 33:22
-        FakeRead(ForLet, _43);           // bb0[140]: scope 10 at $DIR/address-of.rs:33:9: 33:10
-        AscribeUserType(_43, o, UserTypeProjection { base: UserType(23), projs: [] }); // bb0[141]: scope 10 at $DIR/address-of.rs:33:12: 33:18
-        StorageLive(_44);                // bb0[142]: scope 11 at $DIR/address-of.rs:34:9: 34:10
-        _44 = &raw mut (*_3);            // bb0[143]: scope 11 at $DIR/address-of.rs:34:29: 34:30
-        FakeRead(ForLet, _44);           // bb0[144]: scope 11 at $DIR/address-of.rs:34:9: 34:10
-        AscribeUserType(_44, o, UserTypeProjection { base: UserType(25), projs: [] }); // bb0[145]: scope 11 at $DIR/address-of.rs:34:12: 34:26
-        StorageLive(_45);                // bb0[146]: scope 12 at $DIR/address-of.rs:35:9: 35:10
-        StorageLive(_46);                // bb0[147]: scope 12 at $DIR/address-of.rs:35:28: 35:29
-        _46 = &raw mut (*_3);            // bb0[148]: scope 12 at $DIR/address-of.rs:35:28: 35:29
-        _45 = move _46 as *mut dyn std::marker::Send (Pointer(Unsize)); // bb0[149]: scope 12 at $DIR/address-of.rs:35:28: 35:29
-        StorageDead(_46);                // bb0[150]: scope 12 at $DIR/address-of.rs:35:28: 35:29
-        FakeRead(ForLet, _45);           // bb0[151]: scope 12 at $DIR/address-of.rs:35:9: 35:10
-        AscribeUserType(_45, o, UserTypeProjection { base: UserType(27), projs: [] }); // bb0[152]: scope 12 at $DIR/address-of.rs:35:12: 35:25
-        StorageLive(_47);                // bb0[153]: scope 13 at $DIR/address-of.rs:36:9: 36:10
-        StorageLive(_48);                // bb0[154]: scope 13 at $DIR/address-of.rs:36:25: 36:26
-        _48 = &raw mut (*_3);            // bb0[155]: scope 13 at $DIR/address-of.rs:36:25: 36:26
-        _47 = move _48 as *mut [i32] (Pointer(Unsize)); // bb0[156]: scope 13 at $DIR/address-of.rs:36:25: 36:26
-        StorageDead(_48);                // bb0[157]: scope 13 at $DIR/address-of.rs:36:25: 36:26
-        FakeRead(ForLet, _47);           // bb0[158]: scope 13 at $DIR/address-of.rs:36:9: 36:10
-        AscribeUserType(_47, o, UserTypeProjection { base: UserType(29), projs: [] }); // bb0[159]: scope 13 at $DIR/address-of.rs:36:12: 36:22
-        _0 = const ();                   // bb0[160]: scope 0 at $DIR/address-of.rs:3:26: 37:2
+        _3 = &mut _4;                    // scope 1 at $DIR/address-of.rs:5:17: 5:29
+        FakeRead(ForLet, _3);            // scope 1 at $DIR/address-of.rs:5:9: 5:14
+        StorageLive(_5);                 // scope 2 at $DIR/address-of.rs:7:5: 7:18
+        StorageLive(_6);                 // scope 2 at $DIR/address-of.rs:7:5: 7:18
+        _6 = &raw const (*_1);           // scope 2 at $DIR/address-of.rs:7:5: 7:6
+        AscribeUserType(_6, o, UserTypeProjection { base: UserType(0), projs: [] }); // scope 2 at $DIR/address-of.rs:7:5: 7:18
+        _5 = _6;                         // scope 2 at $DIR/address-of.rs:7:5: 7:18
+        StorageDead(_6);                 // scope 2 at $DIR/address-of.rs:7:18: 7:19
+        StorageDead(_5);                 // scope 2 at $DIR/address-of.rs:7:18: 7:19
+        StorageLive(_7);                 // scope 2 at $DIR/address-of.rs:8:5: 8:26
+        _7 = &raw const (*_1);           // scope 2 at $DIR/address-of.rs:8:5: 8:6
+        StorageDead(_7);                 // scope 2 at $DIR/address-of.rs:8:26: 8:27
+        StorageLive(_8);                 // scope 2 at $DIR/address-of.rs:9:5: 9:25
+        StorageLive(_9);                 // scope 2 at $DIR/address-of.rs:9:5: 9:25
+        StorageLive(_10);                // scope 2 at $DIR/address-of.rs:9:5: 9:6
+        _10 = &raw const (*_1);          // scope 2 at $DIR/address-of.rs:9:5: 9:6
+        _9 = move _10 as *const dyn std::marker::Send (Pointer(Unsize)); // scope 2 at $DIR/address-of.rs:9:5: 9:6
+        StorageDead(_10);                // scope 2 at $DIR/address-of.rs:9:5: 9:6
+        AscribeUserType(_9, o, UserTypeProjection { base: UserType(1), projs: [] }); // scope 2 at $DIR/address-of.rs:9:5: 9:25
+        _8 = _9;                         // scope 2 at $DIR/address-of.rs:9:5: 9:25
+        StorageDead(_9);                 // scope 2 at $DIR/address-of.rs:9:25: 9:26
+        StorageDead(_8);                 // scope 2 at $DIR/address-of.rs:9:25: 9:26
+        StorageLive(_11);                // scope 2 at $DIR/address-of.rs:10:5: 10:22
+        StorageLive(_12);                // scope 2 at $DIR/address-of.rs:10:5: 10:6
+        _12 = &raw const (*_1);          // scope 2 at $DIR/address-of.rs:10:5: 10:6
+        _11 = move _12 as *const [i32] (Pointer(Unsize)); // scope 2 at $DIR/address-of.rs:10:5: 10:6
+        StorageDead(_12);                // scope 2 at $DIR/address-of.rs:10:5: 10:6
+        StorageDead(_11);                // scope 2 at $DIR/address-of.rs:10:22: 10:23
+        StorageLive(_13);                // scope 2 at $DIR/address-of.rs:11:5: 11:20
+        StorageLive(_14);                // scope 2 at $DIR/address-of.rs:11:5: 11:6
+        _14 = &raw const (*_1);          // scope 2 at $DIR/address-of.rs:11:5: 11:6
+        _13 = move _14 as *const i32 (Pointer(ArrayToPointer)); // scope 2 at $DIR/address-of.rs:11:5: 11:20
+        StorageDead(_14);                // scope 2 at $DIR/address-of.rs:11:19: 11:20
+        StorageDead(_13);                // scope 2 at $DIR/address-of.rs:11:20: 11:21
+        StorageLive(_15);                // scope 2 at $DIR/address-of.rs:13:9: 13:10
+        _15 = &raw const (*_1);          // scope 2 at $DIR/address-of.rs:13:23: 13:24
+        FakeRead(ForLet, _15);           // scope 2 at $DIR/address-of.rs:13:9: 13:10
+        AscribeUserType(_15, o, UserTypeProjection { base: UserType(3), projs: [] }); // scope 2 at $DIR/address-of.rs:13:12: 13:20
+        StorageLive(_16);                // scope 3 at $DIR/address-of.rs:14:9: 14:10
+        _16 = &raw const (*_1);          // scope 3 at $DIR/address-of.rs:14:31: 14:32
+        FakeRead(ForLet, _16);           // scope 3 at $DIR/address-of.rs:14:9: 14:10
+        AscribeUserType(_16, o, UserTypeProjection { base: UserType(5), projs: [] }); // scope 3 at $DIR/address-of.rs:14:12: 14:28
+        StorageLive(_17);                // scope 4 at $DIR/address-of.rs:15:9: 15:10
+        StorageLive(_18);                // scope 4 at $DIR/address-of.rs:15:30: 15:31
+        _18 = &raw const (*_1);          // scope 4 at $DIR/address-of.rs:15:30: 15:31
+        _17 = move _18 as *const dyn std::marker::Send (Pointer(Unsize)); // scope 4 at $DIR/address-of.rs:15:30: 15:31
+        StorageDead(_18);                // scope 4 at $DIR/address-of.rs:15:30: 15:31
+        FakeRead(ForLet, _17);           // scope 4 at $DIR/address-of.rs:15:9: 15:10
+        AscribeUserType(_17, o, UserTypeProjection { base: UserType(7), projs: [] }); // scope 4 at $DIR/address-of.rs:15:12: 15:27
+        StorageLive(_19);                // scope 5 at $DIR/address-of.rs:16:9: 16:10
+        StorageLive(_20);                // scope 5 at $DIR/address-of.rs:16:27: 16:28
+        _20 = &raw const (*_1);          // scope 5 at $DIR/address-of.rs:16:27: 16:28
+        _19 = move _20 as *const [i32] (Pointer(Unsize)); // scope 5 at $DIR/address-of.rs:16:27: 16:28
+        StorageDead(_20);                // scope 5 at $DIR/address-of.rs:16:27: 16:28
+        FakeRead(ForLet, _19);           // scope 5 at $DIR/address-of.rs:16:9: 16:10
+        AscribeUserType(_19, o, UserTypeProjection { base: UserType(9), projs: [] }); // scope 5 at $DIR/address-of.rs:16:12: 16:24
+        StorageLive(_21);                // scope 6 at $DIR/address-of.rs:18:5: 18:18
+        StorageLive(_22);                // scope 6 at $DIR/address-of.rs:18:5: 18:18
+        _22 = &raw const (*_3);          // scope 6 at $DIR/address-of.rs:18:5: 18:6
+        AscribeUserType(_22, o, UserTypeProjection { base: UserType(10), projs: [] }); // scope 6 at $DIR/address-of.rs:18:5: 18:18
+        _21 = _22;                       // scope 6 at $DIR/address-of.rs:18:5: 18:18
+        StorageDead(_22);                // scope 6 at $DIR/address-of.rs:18:18: 18:19
+        StorageDead(_21);                // scope 6 at $DIR/address-of.rs:18:18: 18:19
+        StorageLive(_23);                // scope 6 at $DIR/address-of.rs:19:5: 19:26
+        _23 = &raw const (*_3);          // scope 6 at $DIR/address-of.rs:19:5: 19:6
+        StorageDead(_23);                // scope 6 at $DIR/address-of.rs:19:26: 19:27
+        StorageLive(_24);                // scope 6 at $DIR/address-of.rs:20:5: 20:25
+        StorageLive(_25);                // scope 6 at $DIR/address-of.rs:20:5: 20:25
+        StorageLive(_26);                // scope 6 at $DIR/address-of.rs:20:5: 20:6
+        _26 = &raw const (*_3);          // scope 6 at $DIR/address-of.rs:20:5: 20:6
+        _25 = move _26 as *const dyn std::marker::Send (Pointer(Unsize)); // scope 6 at $DIR/address-of.rs:20:5: 20:6
+        StorageDead(_26);                // scope 6 at $DIR/address-of.rs:20:5: 20:6
+        AscribeUserType(_25, o, UserTypeProjection { base: UserType(11), projs: [] }); // scope 6 at $DIR/address-of.rs:20:5: 20:25
+        _24 = _25;                       // scope 6 at $DIR/address-of.rs:20:5: 20:25
+        StorageDead(_25);                // scope 6 at $DIR/address-of.rs:20:25: 20:26
+        StorageDead(_24);                // scope 6 at $DIR/address-of.rs:20:25: 20:26
+        StorageLive(_27);                // scope 6 at $DIR/address-of.rs:21:5: 21:22
+        StorageLive(_28);                // scope 6 at $DIR/address-of.rs:21:5: 21:6
+        _28 = &raw const (*_3);          // scope 6 at $DIR/address-of.rs:21:5: 21:6
+        _27 = move _28 as *const [i32] (Pointer(Unsize)); // scope 6 at $DIR/address-of.rs:21:5: 21:6
+        StorageDead(_28);                // scope 6 at $DIR/address-of.rs:21:5: 21:6
+        StorageDead(_27);                // scope 6 at $DIR/address-of.rs:21:22: 21:23
+        StorageLive(_29);                // scope 6 at $DIR/address-of.rs:23:9: 23:10
+        _29 = &raw const (*_3);          // scope 6 at $DIR/address-of.rs:23:23: 23:24
+        FakeRead(ForLet, _29);           // scope 6 at $DIR/address-of.rs:23:9: 23:10
+        AscribeUserType(_29, o, UserTypeProjection { base: UserType(13), projs: [] }); // scope 6 at $DIR/address-of.rs:23:12: 23:20
+        StorageLive(_30);                // scope 7 at $DIR/address-of.rs:24:9: 24:10
+        _30 = &raw const (*_3);          // scope 7 at $DIR/address-of.rs:24:31: 24:32
+        FakeRead(ForLet, _30);           // scope 7 at $DIR/address-of.rs:24:9: 24:10
+        AscribeUserType(_30, o, UserTypeProjection { base: UserType(15), projs: [] }); // scope 7 at $DIR/address-of.rs:24:12: 24:28
+        StorageLive(_31);                // scope 8 at $DIR/address-of.rs:25:9: 25:10
+        StorageLive(_32);                // scope 8 at $DIR/address-of.rs:25:30: 25:31
+        _32 = &raw const (*_3);          // scope 8 at $DIR/address-of.rs:25:30: 25:31
+        _31 = move _32 as *const dyn std::marker::Send (Pointer(Unsize)); // scope 8 at $DIR/address-of.rs:25:30: 25:31
+        StorageDead(_32);                // scope 8 at $DIR/address-of.rs:25:30: 25:31
+        FakeRead(ForLet, _31);           // scope 8 at $DIR/address-of.rs:25:9: 25:10
+        AscribeUserType(_31, o, UserTypeProjection { base: UserType(17), projs: [] }); // scope 8 at $DIR/address-of.rs:25:12: 25:27
+        StorageLive(_33);                // scope 9 at $DIR/address-of.rs:26:9: 26:10
+        StorageLive(_34);                // scope 9 at $DIR/address-of.rs:26:27: 26:28
+        _34 = &raw const (*_3);          // scope 9 at $DIR/address-of.rs:26:27: 26:28
+        _33 = move _34 as *const [i32] (Pointer(Unsize)); // scope 9 at $DIR/address-of.rs:26:27: 26:28
+        StorageDead(_34);                // scope 9 at $DIR/address-of.rs:26:27: 26:28
+        FakeRead(ForLet, _33);           // scope 9 at $DIR/address-of.rs:26:9: 26:10
+        AscribeUserType(_33, o, UserTypeProjection { base: UserType(19), projs: [] }); // scope 9 at $DIR/address-of.rs:26:12: 26:24
+        StorageLive(_35);                // scope 10 at $DIR/address-of.rs:28:5: 28:16
+        StorageLive(_36);                // scope 10 at $DIR/address-of.rs:28:5: 28:16
+        _36 = &raw mut (*_3);            // scope 10 at $DIR/address-of.rs:28:5: 28:6
+        AscribeUserType(_36, o, UserTypeProjection { base: UserType(20), projs: [] }); // scope 10 at $DIR/address-of.rs:28:5: 28:16
+        _35 = _36;                       // scope 10 at $DIR/address-of.rs:28:5: 28:16
+        StorageDead(_36);                // scope 10 at $DIR/address-of.rs:28:16: 28:17
+        StorageDead(_35);                // scope 10 at $DIR/address-of.rs:28:16: 28:17
+        StorageLive(_37);                // scope 10 at $DIR/address-of.rs:29:5: 29:24
+        _37 = &raw mut (*_3);            // scope 10 at $DIR/address-of.rs:29:5: 29:6
+        StorageDead(_37);                // scope 10 at $DIR/address-of.rs:29:24: 29:25
+        StorageLive(_38);                // scope 10 at $DIR/address-of.rs:30:5: 30:23
+        StorageLive(_39);                // scope 10 at $DIR/address-of.rs:30:5: 30:23
+        StorageLive(_40);                // scope 10 at $DIR/address-of.rs:30:5: 30:6
+        _40 = &raw mut (*_3);            // scope 10 at $DIR/address-of.rs:30:5: 30:6
+        _39 = move _40 as *mut dyn std::marker::Send (Pointer(Unsize)); // scope 10 at $DIR/address-of.rs:30:5: 30:6
+        StorageDead(_40);                // scope 10 at $DIR/address-of.rs:30:5: 30:6
+        AscribeUserType(_39, o, UserTypeProjection { base: UserType(21), projs: [] }); // scope 10 at $DIR/address-of.rs:30:5: 30:23
+        _38 = _39;                       // scope 10 at $DIR/address-of.rs:30:5: 30:23
+        StorageDead(_39);                // scope 10 at $DIR/address-of.rs:30:23: 30:24
+        StorageDead(_38);                // scope 10 at $DIR/address-of.rs:30:23: 30:24
+        StorageLive(_41);                // scope 10 at $DIR/address-of.rs:31:5: 31:20
+        StorageLive(_42);                // scope 10 at $DIR/address-of.rs:31:5: 31:6
+        _42 = &raw mut (*_3);            // scope 10 at $DIR/address-of.rs:31:5: 31:6
+        _41 = move _42 as *mut [i32] (Pointer(Unsize)); // scope 10 at $DIR/address-of.rs:31:5: 31:6
+        StorageDead(_42);                // scope 10 at $DIR/address-of.rs:31:5: 31:6
+        StorageDead(_41);                // scope 10 at $DIR/address-of.rs:31:20: 31:21
+        StorageLive(_43);                // scope 10 at $DIR/address-of.rs:33:9: 33:10
+        _43 = &raw mut (*_3);            // scope 10 at $DIR/address-of.rs:33:21: 33:22
+        FakeRead(ForLet, _43);           // scope 10 at $DIR/address-of.rs:33:9: 33:10
+        AscribeUserType(_43, o, UserTypeProjection { base: UserType(23), projs: [] }); // scope 10 at $DIR/address-of.rs:33:12: 33:18
+        StorageLive(_44);                // scope 11 at $DIR/address-of.rs:34:9: 34:10
+        _44 = &raw mut (*_3);            // scope 11 at $DIR/address-of.rs:34:29: 34:30
+        FakeRead(ForLet, _44);           // scope 11 at $DIR/address-of.rs:34:9: 34:10
+        AscribeUserType(_44, o, UserTypeProjection { base: UserType(25), projs: [] }); // scope 11 at $DIR/address-of.rs:34:12: 34:26
+        StorageLive(_45);                // scope 12 at $DIR/address-of.rs:35:9: 35:10
+        StorageLive(_46);                // scope 12 at $DIR/address-of.rs:35:28: 35:29
+        _46 = &raw mut (*_3);            // scope 12 at $DIR/address-of.rs:35:28: 35:29
+        _45 = move _46 as *mut dyn std::marker::Send (Pointer(Unsize)); // scope 12 at $DIR/address-of.rs:35:28: 35:29
+        StorageDead(_46);                // scope 12 at $DIR/address-of.rs:35:28: 35:29
+        FakeRead(ForLet, _45);           // scope 12 at $DIR/address-of.rs:35:9: 35:10
+        AscribeUserType(_45, o, UserTypeProjection { base: UserType(27), projs: [] }); // scope 12 at $DIR/address-of.rs:35:12: 35:25
+        StorageLive(_47);                // scope 13 at $DIR/address-of.rs:36:9: 36:10
+        StorageLive(_48);                // scope 13 at $DIR/address-of.rs:36:25: 36:26
+        _48 = &raw mut (*_3);            // scope 13 at $DIR/address-of.rs:36:25: 36:26
+        _47 = move _48 as *mut [i32] (Pointer(Unsize)); // scope 13 at $DIR/address-of.rs:36:25: 36:26
+        StorageDead(_48);                // scope 13 at $DIR/address-of.rs:36:25: 36:26
+        FakeRead(ForLet, _47);           // scope 13 at $DIR/address-of.rs:36:9: 36:10
+        AscribeUserType(_47, o, UserTypeProjection { base: UserType(29), projs: [] }); // scope 13 at $DIR/address-of.rs:36:12: 36:22
+        _0 = const ();                   // scope 0 at $DIR/address-of.rs:3:26: 37:2
                                          // ty::Const
                                          // + ty: ()
                                          // + val: Value(Scalar(<ZST>))
                                          // mir::Constant
                                          // + span: $DIR/address-of.rs:3:26: 37:2
                                          // + literal: Const { ty: (), val: Value(Scalar(<ZST>)) }
-        StorageDead(_47);                // bb0[161]: scope 13 at $DIR/address-of.rs:37:1: 37:2
-        StorageDead(_45);                // bb0[162]: scope 12 at $DIR/address-of.rs:37:1: 37:2
-        StorageDead(_44);                // bb0[163]: scope 11 at $DIR/address-of.rs:37:1: 37:2
-        StorageDead(_43);                // bb0[164]: scope 10 at $DIR/address-of.rs:37:1: 37:2
-        StorageDead(_33);                // bb0[165]: scope 9 at $DIR/address-of.rs:37:1: 37:2
-        StorageDead(_31);                // bb0[166]: scope 8 at $DIR/address-of.rs:37:1: 37:2
-        StorageDead(_30);                // bb0[167]: scope 7 at $DIR/address-of.rs:37:1: 37:2
-        StorageDead(_29);                // bb0[168]: scope 6 at $DIR/address-of.rs:37:1: 37:2
-        StorageDead(_19);                // bb0[169]: scope 5 at $DIR/address-of.rs:37:1: 37:2
-        StorageDead(_17);                // bb0[170]: scope 4 at $DIR/address-of.rs:37:1: 37:2
-        StorageDead(_16);                // bb0[171]: scope 3 at $DIR/address-of.rs:37:1: 37:2
-        StorageDead(_15);                // bb0[172]: scope 2 at $DIR/address-of.rs:37:1: 37:2
-        StorageDead(_4);                 // bb0[173]: scope 1 at $DIR/address-of.rs:37:1: 37:2
-        StorageDead(_3);                 // bb0[174]: scope 1 at $DIR/address-of.rs:37:1: 37:2
-        StorageDead(_2);                 // bb0[175]: scope 0 at $DIR/address-of.rs:37:1: 37:2
-        StorageDead(_1);                 // bb0[176]: scope 0 at $DIR/address-of.rs:37:1: 37:2
-        return;                          // bb0[177]: scope 0 at $DIR/address-of.rs:37:2: 37:2
+        StorageDead(_47);                // scope 13 at $DIR/address-of.rs:37:1: 37:2
+        StorageDead(_45);                // scope 12 at $DIR/address-of.rs:37:1: 37:2
+        StorageDead(_44);                // scope 11 at $DIR/address-of.rs:37:1: 37:2
+        StorageDead(_43);                // scope 10 at $DIR/address-of.rs:37:1: 37:2
+        StorageDead(_33);                // scope 9 at $DIR/address-of.rs:37:1: 37:2
+        StorageDead(_31);                // scope 8 at $DIR/address-of.rs:37:1: 37:2
+        StorageDead(_30);                // scope 7 at $DIR/address-of.rs:37:1: 37:2
+        StorageDead(_29);                // scope 6 at $DIR/address-of.rs:37:1: 37:2
+        StorageDead(_19);                // scope 5 at $DIR/address-of.rs:37:1: 37:2
+        StorageDead(_17);                // scope 4 at $DIR/address-of.rs:37:1: 37:2
+        StorageDead(_16);                // scope 3 at $DIR/address-of.rs:37:1: 37:2
+        StorageDead(_15);                // scope 2 at $DIR/address-of.rs:37:1: 37:2
+        StorageDead(_4);                 // scope 1 at $DIR/address-of.rs:37:1: 37:2
+        StorageDead(_3);                 // scope 1 at $DIR/address-of.rs:37:1: 37:2
+        StorageDead(_2);                 // scope 0 at $DIR/address-of.rs:37:1: 37:2
+        StorageDead(_1);                 // scope 0 at $DIR/address-of.rs:37:1: 37:2
+        return;                          // scope 0 at $DIR/address-of.rs:37:2: 37:2
     }
 }
diff --git a/src/test/mir-opt/address-of/rustc.borrow_and_cast.SimplifyCfg-initial.after.mir b/src/test/mir-opt/address-of/rustc.borrow_and_cast.SimplifyCfg-initial.after.mir
index 0ed76f230fd..4a7e8de29ec 100644
--- a/src/test/mir-opt/address-of/rustc.borrow_and_cast.SimplifyCfg-initial.after.mir
+++ b/src/test/mir-opt/address-of/rustc.borrow_and_cast.SimplifyCfg-initial.after.mir
@@ -20,34 +20,34 @@ fn borrow_and_cast(_1: i32) -> () {
     }
 
     bb0: {
-        StorageLive(_2);                 // bb0[0]: scope 0 at $DIR/address-of.rs:42:9: 42:10
-        StorageLive(_3);                 // bb0[1]: scope 0 at $DIR/address-of.rs:42:13: 42:15
-        _3 = &_1;                        // bb0[2]: scope 0 at $DIR/address-of.rs:42:13: 42:15
-        _2 = &raw const (*_3);           // bb0[3]: scope 0 at $DIR/address-of.rs:42:13: 42:15
-        FakeRead(ForLet, _2);            // bb0[4]: scope 0 at $DIR/address-of.rs:42:9: 42:10
-        StorageDead(_3);                 // bb0[5]: scope 0 at $DIR/address-of.rs:42:29: 42:30
-        StorageLive(_4);                 // bb0[6]: scope 1 at $DIR/address-of.rs:43:9: 43:10
-        StorageLive(_5);                 // bb0[7]: scope 1 at $DIR/address-of.rs:43:13: 43:19
-        _5 = &mut _1;                    // bb0[8]: scope 1 at $DIR/address-of.rs:43:13: 43:19
-        _4 = &raw const (*_5);           // bb0[9]: scope 1 at $DIR/address-of.rs:43:13: 43:19
-        FakeRead(ForLet, _4);            // bb0[10]: scope 1 at $DIR/address-of.rs:43:9: 43:10
-        StorageDead(_5);                 // bb0[11]: scope 1 at $DIR/address-of.rs:43:33: 43:34
-        StorageLive(_6);                 // bb0[12]: scope 2 at $DIR/address-of.rs:44:9: 44:10
-        StorageLive(_7);                 // bb0[13]: scope 2 at $DIR/address-of.rs:44:13: 44:19
-        _7 = &mut _1;                    // bb0[14]: scope 2 at $DIR/address-of.rs:44:13: 44:19
-        _6 = &raw mut (*_7);             // bb0[15]: scope 2 at $DIR/address-of.rs:44:13: 44:19
-        FakeRead(ForLet, _6);            // bb0[16]: scope 2 at $DIR/address-of.rs:44:9: 44:10
-        StorageDead(_7);                 // bb0[17]: scope 2 at $DIR/address-of.rs:44:31: 44:32
-        _0 = const ();                   // bb0[18]: scope 0 at $DIR/address-of.rs:41:32: 45:2
+        StorageLive(_2);                 // scope 0 at $DIR/address-of.rs:42:9: 42:10
+        StorageLive(_3);                 // scope 0 at $DIR/address-of.rs:42:13: 42:15
+        _3 = &_1;                        // scope 0 at $DIR/address-of.rs:42:13: 42:15
+        _2 = &raw const (*_3);           // scope 0 at $DIR/address-of.rs:42:13: 42:15
+        FakeRead(ForLet, _2);            // scope 0 at $DIR/address-of.rs:42:9: 42:10
+        StorageDead(_3);                 // scope 0 at $DIR/address-of.rs:42:29: 42:30
+        StorageLive(_4);                 // scope 1 at $DIR/address-of.rs:43:9: 43:10
+        StorageLive(_5);                 // scope 1 at $DIR/address-of.rs:43:13: 43:19
+        _5 = &mut _1;                    // scope 1 at $DIR/address-of.rs:43:13: 43:19
+        _4 = &raw const (*_5);           // scope 1 at $DIR/address-of.rs:43:13: 43:19
+        FakeRead(ForLet, _4);            // scope 1 at $DIR/address-of.rs:43:9: 43:10
+        StorageDead(_5);                 // scope 1 at $DIR/address-of.rs:43:33: 43:34
+        StorageLive(_6);                 // scope 2 at $DIR/address-of.rs:44:9: 44:10
+        StorageLive(_7);                 // scope 2 at $DIR/address-of.rs:44:13: 44:19
+        _7 = &mut _1;                    // scope 2 at $DIR/address-of.rs:44:13: 44:19
+        _6 = &raw mut (*_7);             // scope 2 at $DIR/address-of.rs:44:13: 44:19
+        FakeRead(ForLet, _6);            // scope 2 at $DIR/address-of.rs:44:9: 44:10
+        StorageDead(_7);                 // scope 2 at $DIR/address-of.rs:44:31: 44:32
+        _0 = const ();                   // scope 0 at $DIR/address-of.rs:41:32: 45:2
                                          // ty::Const
                                          // + ty: ()
                                          // + val: Value(Scalar(<ZST>))
                                          // mir::Constant
                                          // + span: $DIR/address-of.rs:41:32: 45:2
                                          // + literal: Const { ty: (), val: Value(Scalar(<ZST>)) }
-        StorageDead(_6);                 // bb0[19]: scope 2 at $DIR/address-of.rs:45:1: 45:2
-        StorageDead(_4);                 // bb0[20]: scope 1 at $DIR/address-of.rs:45:1: 45:2
-        StorageDead(_2);                 // bb0[21]: scope 0 at $DIR/address-of.rs:45:1: 45:2
-        return;                          // bb0[22]: scope 0 at $DIR/address-of.rs:45:2: 45:2
+        StorageDead(_6);                 // scope 2 at $DIR/address-of.rs:45:1: 45:2
+        StorageDead(_4);                 // scope 1 at $DIR/address-of.rs:45:1: 45:2
+        StorageDead(_2);                 // scope 0 at $DIR/address-of.rs:45:1: 45:2
+        return;                          // scope 0 at $DIR/address-of.rs:45:2: 45:2
     }
 }
diff --git a/src/test/mir-opt/array-index-is-temporary/32bit/rustc.main.SimplifyCfg-elaborate-drops.after.mir b/src/test/mir-opt/array-index-is-temporary/32bit/rustc.main.SimplifyCfg-elaborate-drops.after.mir
index 217d080be4f..c42d5adce4f 100644
--- a/src/test/mir-opt/array-index-is-temporary/32bit/rustc.main.SimplifyCfg-elaborate-drops.after.mir
+++ b/src/test/mir-opt/array-index-is-temporary/32bit/rustc.main.SimplifyCfg-elaborate-drops.after.mir
@@ -24,8 +24,8 @@ fn main() -> () {
     }
 
     bb0: {
-        StorageLive(_1);                 // bb0[0]: scope 0 at $DIR/array-index-is-temporary.rs:13:9: 13:14
-        _1 = [const 42u32, const 43u32, const 44u32]; // bb0[1]: scope 0 at $DIR/array-index-is-temporary.rs:13:17: 13:29
+        StorageLive(_1);                 // scope 0 at $DIR/array-index-is-temporary.rs:13:9: 13:14
+        _1 = [const 42u32, const 43u32, const 44u32]; // scope 0 at $DIR/array-index-is-temporary.rs:13:17: 13:29
                                          // ty::Const
                                          // + ty: u32
                                          // + val: Value(Scalar(0x0000002a))
@@ -44,23 +44,23 @@ fn main() -> () {
                                          // mir::Constant
                                          // + span: $DIR/array-index-is-temporary.rs:13:26: 13:28
                                          // + literal: Const { ty: u32, val: Value(Scalar(0x0000002c)) }
-        StorageLive(_2);                 // bb0[2]: scope 1 at $DIR/array-index-is-temporary.rs:14:9: 14:14
-        _2 = const 1usize;               // bb0[3]: scope 1 at $DIR/array-index-is-temporary.rs:14:17: 14:18
+        StorageLive(_2);                 // scope 1 at $DIR/array-index-is-temporary.rs:14:9: 14:14
+        _2 = const 1usize;               // scope 1 at $DIR/array-index-is-temporary.rs:14:17: 14:18
                                          // ty::Const
                                          // + ty: usize
                                          // + val: Value(Scalar(0x00000001))
                                          // mir::Constant
                                          // + span: $DIR/array-index-is-temporary.rs:14:17: 14:18
                                          // + literal: Const { ty: usize, val: Value(Scalar(0x00000001)) }
-        StorageLive(_3);                 // bb0[4]: scope 2 at $DIR/array-index-is-temporary.rs:15:9: 15:10
-        StorageLive(_4);                 // bb0[5]: scope 2 at $DIR/array-index-is-temporary.rs:15:25: 15:31
-        _4 = &mut _2;                    // bb0[6]: scope 2 at $DIR/array-index-is-temporary.rs:15:25: 15:31
-        _3 = &raw mut (*_4);             // bb0[7]: scope 2 at $DIR/array-index-is-temporary.rs:15:25: 15:31
-        StorageDead(_4);                 // bb0[8]: scope 2 at $DIR/array-index-is-temporary.rs:15:31: 15:32
-        StorageLive(_5);                 // bb0[9]: scope 3 at $DIR/array-index-is-temporary.rs:16:12: 16:29
-        StorageLive(_6);                 // bb0[10]: scope 4 at $DIR/array-index-is-temporary.rs:16:25: 16:26
-        _6 = _3;                         // bb0[11]: scope 4 at $DIR/array-index-is-temporary.rs:16:25: 16:26
-        _5 = const foo(move _6) -> bb1;  // bb0[12]: scope 4 at $DIR/array-index-is-temporary.rs:16:21: 16:27
+        StorageLive(_3);                 // scope 2 at $DIR/array-index-is-temporary.rs:15:9: 15:10
+        StorageLive(_4);                 // scope 2 at $DIR/array-index-is-temporary.rs:15:25: 15:31
+        _4 = &mut _2;                    // scope 2 at $DIR/array-index-is-temporary.rs:15:25: 15:31
+        _3 = &raw mut (*_4);             // scope 2 at $DIR/array-index-is-temporary.rs:15:25: 15:31
+        StorageDead(_4);                 // scope 2 at $DIR/array-index-is-temporary.rs:15:31: 15:32
+        StorageLive(_5);                 // scope 3 at $DIR/array-index-is-temporary.rs:16:12: 16:29
+        StorageLive(_6);                 // scope 4 at $DIR/array-index-is-temporary.rs:16:25: 16:26
+        _6 = _3;                         // scope 4 at $DIR/array-index-is-temporary.rs:16:25: 16:26
+        _5 = const foo(move _6) -> bb1;  // scope 4 at $DIR/array-index-is-temporary.rs:16:21: 16:27
                                          // ty::Const
                                          // + ty: unsafe fn(*mut usize) -> u32 {foo}
                                          // + val: Value(Scalar(<ZST>))
@@ -70,28 +70,28 @@ fn main() -> () {
     }
 
     bb1: {
-        StorageDead(_6);                 // bb1[0]: scope 4 at $DIR/array-index-is-temporary.rs:16:26: 16:27
-        StorageLive(_7);                 // bb1[1]: scope 3 at $DIR/array-index-is-temporary.rs:16:7: 16:8
-        _7 = _2;                         // bb1[2]: scope 3 at $DIR/array-index-is-temporary.rs:16:7: 16:8
-        _8 = Len(_1);                    // bb1[3]: scope 3 at $DIR/array-index-is-temporary.rs:16:5: 16:9
-        _9 = Lt(_7, _8);                 // bb1[4]: scope 3 at $DIR/array-index-is-temporary.rs:16:5: 16:9
-        assert(move _9, "index out of bounds: the len is {} but the index is {}", move _8, _7) -> bb2; // bb1[5]: scope 3 at $DIR/array-index-is-temporary.rs:16:5: 16:9
+        StorageDead(_6);                 // scope 4 at $DIR/array-index-is-temporary.rs:16:26: 16:27
+        StorageLive(_7);                 // scope 3 at $DIR/array-index-is-temporary.rs:16:7: 16:8
+        _7 = _2;                         // scope 3 at $DIR/array-index-is-temporary.rs:16:7: 16:8
+        _8 = Len(_1);                    // scope 3 at $DIR/array-index-is-temporary.rs:16:5: 16:9
+        _9 = Lt(_7, _8);                 // scope 3 at $DIR/array-index-is-temporary.rs:16:5: 16:9
+        assert(move _9, "index out of bounds: the len is {} but the index is {}", move _8, _7) -> bb2; // scope 3 at $DIR/array-index-is-temporary.rs:16:5: 16:9
     }
 
     bb2: {
-        _1[_7] = move _5;                // bb2[0]: scope 3 at $DIR/array-index-is-temporary.rs:16:5: 16:29
-        StorageDead(_5);                 // bb2[1]: scope 3 at $DIR/array-index-is-temporary.rs:16:28: 16:29
-        StorageDead(_7);                 // bb2[2]: scope 3 at $DIR/array-index-is-temporary.rs:16:29: 16:30
-        _0 = const ();                   // bb2[3]: scope 0 at $DIR/array-index-is-temporary.rs:12:11: 17:2
+        _1[_7] = move _5;                // scope 3 at $DIR/array-index-is-temporary.rs:16:5: 16:29
+        StorageDead(_5);                 // scope 3 at $DIR/array-index-is-temporary.rs:16:28: 16:29
+        StorageDead(_7);                 // scope 3 at $DIR/array-index-is-temporary.rs:16:29: 16:30
+        _0 = const ();                   // scope 0 at $DIR/array-index-is-temporary.rs:12:11: 17:2
                                          // ty::Const
                                          // + ty: ()
                                          // + val: Value(Scalar(<ZST>))
                                          // mir::Constant
                                          // + span: $DIR/array-index-is-temporary.rs:12:11: 17:2
                                          // + literal: Const { ty: (), val: Value(Scalar(<ZST>)) }
-        StorageDead(_3);                 // bb2[4]: scope 2 at $DIR/array-index-is-temporary.rs:17:1: 17:2
-        StorageDead(_2);                 // bb2[5]: scope 1 at $DIR/array-index-is-temporary.rs:17:1: 17:2
-        StorageDead(_1);                 // bb2[6]: scope 0 at $DIR/array-index-is-temporary.rs:17:1: 17:2
-        return;                          // bb2[7]: scope 0 at $DIR/array-index-is-temporary.rs:17:2: 17:2
+        StorageDead(_3);                 // scope 2 at $DIR/array-index-is-temporary.rs:17:1: 17:2
+        StorageDead(_2);                 // scope 1 at $DIR/array-index-is-temporary.rs:17:1: 17:2
+        StorageDead(_1);                 // scope 0 at $DIR/array-index-is-temporary.rs:17:1: 17:2
+        return;                          // scope 0 at $DIR/array-index-is-temporary.rs:17:2: 17:2
     }
 }
diff --git a/src/test/mir-opt/array-index-is-temporary/64bit/rustc.main.SimplifyCfg-elaborate-drops.after.mir b/src/test/mir-opt/array-index-is-temporary/64bit/rustc.main.SimplifyCfg-elaborate-drops.after.mir
index c75acef2a27..05d9b3b9b6f 100644
--- a/src/test/mir-opt/array-index-is-temporary/64bit/rustc.main.SimplifyCfg-elaborate-drops.after.mir
+++ b/src/test/mir-opt/array-index-is-temporary/64bit/rustc.main.SimplifyCfg-elaborate-drops.after.mir
@@ -24,8 +24,8 @@ fn main() -> () {
     }
 
     bb0: {
-        StorageLive(_1);                 // bb0[0]: scope 0 at $DIR/array-index-is-temporary.rs:13:9: 13:14
-        _1 = [const 42u32, const 43u32, const 44u32]; // bb0[1]: scope 0 at $DIR/array-index-is-temporary.rs:13:17: 13:29
+        StorageLive(_1);                 // scope 0 at $DIR/array-index-is-temporary.rs:13:9: 13:14
+        _1 = [const 42u32, const 43u32, const 44u32]; // scope 0 at $DIR/array-index-is-temporary.rs:13:17: 13:29
                                          // ty::Const
                                          // + ty: u32
                                          // + val: Value(Scalar(0x0000002a))
@@ -44,23 +44,23 @@ fn main() -> () {
                                          // mir::Constant
                                          // + span: $DIR/array-index-is-temporary.rs:13:26: 13:28
                                          // + literal: Const { ty: u32, val: Value(Scalar(0x0000002c)) }
-        StorageLive(_2);                 // bb0[2]: scope 1 at $DIR/array-index-is-temporary.rs:14:9: 14:14
-        _2 = const 1usize;               // bb0[3]: scope 1 at $DIR/array-index-is-temporary.rs:14:17: 14:18
+        StorageLive(_2);                 // scope 1 at $DIR/array-index-is-temporary.rs:14:9: 14:14
+        _2 = const 1usize;               // scope 1 at $DIR/array-index-is-temporary.rs:14:17: 14:18
                                          // ty::Const
                                          // + ty: usize
                                          // + val: Value(Scalar(0x0000000000000001))
                                          // mir::Constant
                                          // + span: $DIR/array-index-is-temporary.rs:14:17: 14:18
                                          // + literal: Const { ty: usize, val: Value(Scalar(0x0000000000000001)) }
-        StorageLive(_3);                 // bb0[4]: scope 2 at $DIR/array-index-is-temporary.rs:15:9: 15:10
-        StorageLive(_4);                 // bb0[5]: scope 2 at $DIR/array-index-is-temporary.rs:15:25: 15:31
-        _4 = &mut _2;                    // bb0[6]: scope 2 at $DIR/array-index-is-temporary.rs:15:25: 15:31
-        _3 = &raw mut (*_4);             // bb0[7]: scope 2 at $DIR/array-index-is-temporary.rs:15:25: 15:31
-        StorageDead(_4);                 // bb0[8]: scope 2 at $DIR/array-index-is-temporary.rs:15:31: 15:32
-        StorageLive(_5);                 // bb0[9]: scope 3 at $DIR/array-index-is-temporary.rs:16:12: 16:29
-        StorageLive(_6);                 // bb0[10]: scope 4 at $DIR/array-index-is-temporary.rs:16:25: 16:26
-        _6 = _3;                         // bb0[11]: scope 4 at $DIR/array-index-is-temporary.rs:16:25: 16:26
-        _5 = const foo(move _6) -> bb1;  // bb0[12]: scope 4 at $DIR/array-index-is-temporary.rs:16:21: 16:27
+        StorageLive(_3);                 // scope 2 at $DIR/array-index-is-temporary.rs:15:9: 15:10
+        StorageLive(_4);                 // scope 2 at $DIR/array-index-is-temporary.rs:15:25: 15:31
+        _4 = &mut _2;                    // scope 2 at $DIR/array-index-is-temporary.rs:15:25: 15:31
+        _3 = &raw mut (*_4);             // scope 2 at $DIR/array-index-is-temporary.rs:15:25: 15:31
+        StorageDead(_4);                 // scope 2 at $DIR/array-index-is-temporary.rs:15:31: 15:32
+        StorageLive(_5);                 // scope 3 at $DIR/array-index-is-temporary.rs:16:12: 16:29
+        StorageLive(_6);                 // scope 4 at $DIR/array-index-is-temporary.rs:16:25: 16:26
+        _6 = _3;                         // scope 4 at $DIR/array-index-is-temporary.rs:16:25: 16:26
+        _5 = const foo(move _6) -> bb1;  // scope 4 at $DIR/array-index-is-temporary.rs:16:21: 16:27
                                          // ty::Const
                                          // + ty: unsafe fn(*mut usize) -> u32 {foo}
                                          // + val: Value(Scalar(<ZST>))
@@ -70,28 +70,28 @@ fn main() -> () {
     }
 
     bb1: {
-        StorageDead(_6);                 // bb1[0]: scope 4 at $DIR/array-index-is-temporary.rs:16:26: 16:27
-        StorageLive(_7);                 // bb1[1]: scope 3 at $DIR/array-index-is-temporary.rs:16:7: 16:8
-        _7 = _2;                         // bb1[2]: scope 3 at $DIR/array-index-is-temporary.rs:16:7: 16:8
-        _8 = Len(_1);                    // bb1[3]: scope 3 at $DIR/array-index-is-temporary.rs:16:5: 16:9
-        _9 = Lt(_7, _8);                 // bb1[4]: scope 3 at $DIR/array-index-is-temporary.rs:16:5: 16:9
-        assert(move _9, "index out of bounds: the len is {} but the index is {}", move _8, _7) -> bb2; // bb1[5]: scope 3 at $DIR/array-index-is-temporary.rs:16:5: 16:9
+        StorageDead(_6);                 // scope 4 at $DIR/array-index-is-temporary.rs:16:26: 16:27
+        StorageLive(_7);                 // scope 3 at $DIR/array-index-is-temporary.rs:16:7: 16:8
+        _7 = _2;                         // scope 3 at $DIR/array-index-is-temporary.rs:16:7: 16:8
+        _8 = Len(_1);                    // scope 3 at $DIR/array-index-is-temporary.rs:16:5: 16:9
+        _9 = Lt(_7, _8);                 // scope 3 at $DIR/array-index-is-temporary.rs:16:5: 16:9
+        assert(move _9, "index out of bounds: the len is {} but the index is {}", move _8, _7) -> bb2; // scope 3 at $DIR/array-index-is-temporary.rs:16:5: 16:9
     }
 
     bb2: {
-        _1[_7] = move _5;                // bb2[0]: scope 3 at $DIR/array-index-is-temporary.rs:16:5: 16:29
-        StorageDead(_5);                 // bb2[1]: scope 3 at $DIR/array-index-is-temporary.rs:16:28: 16:29
-        StorageDead(_7);                 // bb2[2]: scope 3 at $DIR/array-index-is-temporary.rs:16:29: 16:30
-        _0 = const ();                   // bb2[3]: scope 0 at $DIR/array-index-is-temporary.rs:12:11: 17:2
+        _1[_7] = move _5;                // scope 3 at $DIR/array-index-is-temporary.rs:16:5: 16:29
+        StorageDead(_5);                 // scope 3 at $DIR/array-index-is-temporary.rs:16:28: 16:29
+        StorageDead(_7);                 // scope 3 at $DIR/array-index-is-temporary.rs:16:29: 16:30
+        _0 = const ();                   // scope 0 at $DIR/array-index-is-temporary.rs:12:11: 17:2
                                          // ty::Const
                                          // + ty: ()
                                          // + val: Value(Scalar(<ZST>))
                                          // mir::Constant
                                          // + span: $DIR/array-index-is-temporary.rs:12:11: 17:2
                                          // + literal: Const { ty: (), val: Value(Scalar(<ZST>)) }
-        StorageDead(_3);                 // bb2[4]: scope 2 at $DIR/array-index-is-temporary.rs:17:1: 17:2
-        StorageDead(_2);                 // bb2[5]: scope 1 at $DIR/array-index-is-temporary.rs:17:1: 17:2
-        StorageDead(_1);                 // bb2[6]: scope 0 at $DIR/array-index-is-temporary.rs:17:1: 17:2
-        return;                          // bb2[7]: scope 0 at $DIR/array-index-is-temporary.rs:17:2: 17:2
+        StorageDead(_3);                 // scope 2 at $DIR/array-index-is-temporary.rs:17:1: 17:2
+        StorageDead(_2);                 // scope 1 at $DIR/array-index-is-temporary.rs:17:1: 17:2
+        StorageDead(_1);                 // scope 0 at $DIR/array-index-is-temporary.rs:17:1: 17:2
+        return;                          // scope 0 at $DIR/array-index-is-temporary.rs:17:2: 17:2
     }
 }
diff --git a/src/test/mir-opt/basic_assignment/rustc.main.SimplifyCfg-initial.after.mir b/src/test/mir-opt/basic_assignment/rustc.main.SimplifyCfg-initial.after.mir
index 86ee1be6f74..de423cd907a 100644
--- a/src/test/mir-opt/basic_assignment/rustc.main.SimplifyCfg-initial.after.mir
+++ b/src/test/mir-opt/basic_assignment/rustc.main.SimplifyCfg-initial.after.mir
@@ -26,71 +26,71 @@ fn main() -> () {
     }
 
     bb0: {
-        StorageLive(_1);                 // bb0[0]: scope 0 at $DIR/basic_assignment.rs:11:9: 11:17
-        _1 = const false;                // bb0[1]: scope 0 at $DIR/basic_assignment.rs:11:20: 11:25
+        StorageLive(_1);                 // scope 0 at $DIR/basic_assignment.rs:11:9: 11:17
+        _1 = const false;                // scope 0 at $DIR/basic_assignment.rs:11:20: 11:25
                                          // ty::Const
                                          // + ty: bool
                                          // + val: Value(Scalar(0x00))
                                          // mir::Constant
                                          // + span: $DIR/basic_assignment.rs:11:20: 11:25
                                          // + literal: Const { ty: bool, val: Value(Scalar(0x00)) }
-        FakeRead(ForLet, _1);            // bb0[2]: scope 0 at $DIR/basic_assignment.rs:11:9: 11:17
-        StorageLive(_2);                 // bb0[3]: scope 1 at $DIR/basic_assignment.rs:12:9: 12:17
-        StorageLive(_3);                 // bb0[4]: scope 2 at $DIR/basic_assignment.rs:16:16: 16:24
-        _3 = _1;                         // bb0[5]: scope 2 at $DIR/basic_assignment.rs:16:16: 16:24
-        _2 = move _3;                    // bb0[6]: scope 2 at $DIR/basic_assignment.rs:16:5: 16:24
-        StorageDead(_3);                 // bb0[7]: scope 2 at $DIR/basic_assignment.rs:16:23: 16:24
-        StorageLive(_4);                 // bb0[8]: scope 2 at $DIR/basic_assignment.rs:18:9: 18:15
-        _4 = std::option::Option::<std::boxed::Box<u32>>::None; // bb0[9]: scope 2 at $DIR/basic_assignment.rs:18:36: 18:40
-        FakeRead(ForLet, _4);            // bb0[10]: scope 2 at $DIR/basic_assignment.rs:18:9: 18:15
-        AscribeUserType(_4, o, UserTypeProjection { base: UserType(1), projs: [] }); // bb0[11]: scope 2 at $DIR/basic_assignment.rs:18:17: 18:33
-        StorageLive(_5);                 // bb0[12]: scope 3 at $DIR/basic_assignment.rs:19:9: 19:15
-        StorageLive(_6);                 // bb0[13]: scope 4 at $DIR/basic_assignment.rs:23:14: 23:20
-        _6 = move _4;                    // bb0[14]: scope 4 at $DIR/basic_assignment.rs:23:14: 23:20
-        replace(_5 <- move _6) -> [return: bb2, unwind: bb5]; // bb0[15]: scope 4 at $DIR/basic_assignment.rs:23:5: 23:11
+        FakeRead(ForLet, _1);            // scope 0 at $DIR/basic_assignment.rs:11:9: 11:17
+        StorageLive(_2);                 // scope 1 at $DIR/basic_assignment.rs:12:9: 12:17
+        StorageLive(_3);                 // scope 2 at $DIR/basic_assignment.rs:16:16: 16:24
+        _3 = _1;                         // scope 2 at $DIR/basic_assignment.rs:16:16: 16:24
+        _2 = move _3;                    // scope 2 at $DIR/basic_assignment.rs:16:5: 16:24
+        StorageDead(_3);                 // scope 2 at $DIR/basic_assignment.rs:16:23: 16:24
+        StorageLive(_4);                 // scope 2 at $DIR/basic_assignment.rs:18:9: 18:15
+        _4 = std::option::Option::<std::boxed::Box<u32>>::None; // scope 2 at $DIR/basic_assignment.rs:18:36: 18:40
+        FakeRead(ForLet, _4);            // scope 2 at $DIR/basic_assignment.rs:18:9: 18:15
+        AscribeUserType(_4, o, UserTypeProjection { base: UserType(1), projs: [] }); // scope 2 at $DIR/basic_assignment.rs:18:17: 18:33
+        StorageLive(_5);                 // scope 3 at $DIR/basic_assignment.rs:19:9: 19:15
+        StorageLive(_6);                 // scope 4 at $DIR/basic_assignment.rs:23:14: 23:20
+        _6 = move _4;                    // scope 4 at $DIR/basic_assignment.rs:23:14: 23:20
+        replace(_5 <- move _6) -> [return: bb2, unwind: bb5]; // scope 4 at $DIR/basic_assignment.rs:23:5: 23:11
     }
 
     bb1 (cleanup): {
-        resume;                          // bb1[0]: scope 0 at $DIR/basic_assignment.rs:10:1: 24:2
+        resume;                          // scope 0 at $DIR/basic_assignment.rs:10:1: 24:2
     }
 
     bb2: {
-        drop(_6) -> [return: bb6, unwind: bb4]; // bb2[0]: scope 4 at $DIR/basic_assignment.rs:23:19: 23:20
+        drop(_6) -> [return: bb6, unwind: bb4]; // scope 4 at $DIR/basic_assignment.rs:23:19: 23:20
     }
 
     bb3 (cleanup): {
-        drop(_4) -> bb1;                 // bb3[0]: scope 2 at $DIR/basic_assignment.rs:24:1: 24:2
+        drop(_4) -> bb1;                 // scope 2 at $DIR/basic_assignment.rs:24:1: 24:2
     }
 
     bb4 (cleanup): {
-        drop(_5) -> bb3;                 // bb4[0]: scope 3 at $DIR/basic_assignment.rs:24:1: 24:2
+        drop(_5) -> bb3;                 // scope 3 at $DIR/basic_assignment.rs:24:1: 24:2
     }
 
     bb5 (cleanup): {
-        drop(_6) -> bb4;                 // bb5[0]: scope 4 at $DIR/basic_assignment.rs:23:19: 23:20
+        drop(_6) -> bb4;                 // scope 4 at $DIR/basic_assignment.rs:23:19: 23:20
     }
 
     bb6: {
-        StorageDead(_6);                 // bb6[0]: scope 4 at $DIR/basic_assignment.rs:23:19: 23:20
-        _0 = const ();                   // bb6[1]: scope 0 at $DIR/basic_assignment.rs:10:11: 24:2
+        StorageDead(_6);                 // scope 4 at $DIR/basic_assignment.rs:23:19: 23:20
+        _0 = const ();                   // scope 0 at $DIR/basic_assignment.rs:10:11: 24:2
                                          // ty::Const
                                          // + ty: ()
                                          // + val: Value(Scalar(<ZST>))
                                          // mir::Constant
                                          // + span: $DIR/basic_assignment.rs:10:11: 24:2
                                          // + literal: Const { ty: (), val: Value(Scalar(<ZST>)) }
-        drop(_5) -> [return: bb7, unwind: bb3]; // bb6[2]: scope 3 at $DIR/basic_assignment.rs:24:1: 24:2
+        drop(_5) -> [return: bb7, unwind: bb3]; // scope 3 at $DIR/basic_assignment.rs:24:1: 24:2
     }
 
     bb7: {
-        StorageDead(_5);                 // bb7[0]: scope 3 at $DIR/basic_assignment.rs:24:1: 24:2
-        drop(_4) -> [return: bb8, unwind: bb1]; // bb7[1]: scope 2 at $DIR/basic_assignment.rs:24:1: 24:2
+        StorageDead(_5);                 // scope 3 at $DIR/basic_assignment.rs:24:1: 24:2
+        drop(_4) -> [return: bb8, unwind: bb1]; // scope 2 at $DIR/basic_assignment.rs:24:1: 24:2
     }
 
     bb8: {
-        StorageDead(_4);                 // bb8[0]: scope 2 at $DIR/basic_assignment.rs:24:1: 24:2
-        StorageDead(_2);                 // bb8[1]: scope 1 at $DIR/basic_assignment.rs:24:1: 24:2
-        StorageDead(_1);                 // bb8[2]: scope 0 at $DIR/basic_assignment.rs:24:1: 24:2
-        return;                          // bb8[3]: scope 0 at $DIR/basic_assignment.rs:24:2: 24:2
+        StorageDead(_4);                 // scope 2 at $DIR/basic_assignment.rs:24:1: 24:2
+        StorageDead(_2);                 // scope 1 at $DIR/basic_assignment.rs:24:1: 24:2
+        StorageDead(_1);                 // scope 0 at $DIR/basic_assignment.rs:24:1: 24:2
+        return;                          // scope 0 at $DIR/basic_assignment.rs:24:2: 24:2
     }
 }
diff --git a/src/test/mir-opt/box_expr/rustc.main.ElaborateDrops.before.mir b/src/test/mir-opt/box_expr/rustc.main.ElaborateDrops.before.mir
index aef0da9d6f0..259501c7de9 100644
--- a/src/test/mir-opt/box_expr/rustc.main.ElaborateDrops.before.mir
+++ b/src/test/mir-opt/box_expr/rustc.main.ElaborateDrops.before.mir
@@ -11,10 +11,10 @@ fn main() -> () {
     }
 
     bb0: {
-        StorageLive(_1);                 // bb0[0]: scope 0 at $DIR/box_expr.rs:7:9: 7:10
-        StorageLive(_2);                 // bb0[1]: scope 0 at $DIR/box_expr.rs:7:13: 7:25
-        _2 = Box(S);                     // bb0[2]: scope 0 at $DIR/box_expr.rs:7:13: 7:25
-        (*_2) = const S::new() -> [return: bb2, unwind: bb3]; // bb0[3]: scope 0 at $DIR/box_expr.rs:7:17: 7:25
+        StorageLive(_1);                 // scope 0 at $DIR/box_expr.rs:7:9: 7:10
+        StorageLive(_2);                 // scope 0 at $DIR/box_expr.rs:7:13: 7:25
+        _2 = Box(S);                     // scope 0 at $DIR/box_expr.rs:7:13: 7:25
+        (*_2) = const S::new() -> [return: bb2, unwind: bb3]; // scope 0 at $DIR/box_expr.rs:7:17: 7:25
                                          // ty::Const
                                          // + ty: fn() -> S {S::new}
                                          // + val: Value(Scalar(<ZST>))
@@ -24,24 +24,24 @@ fn main() -> () {
     }
 
     bb1 (cleanup): {
-        resume;                          // bb1[0]: scope 0 at $DIR/box_expr.rs:6:1: 9:2
+        resume;                          // scope 0 at $DIR/box_expr.rs:6:1: 9:2
     }
 
     bb2: {
-        _1 = move _2;                    // bb2[0]: scope 0 at $DIR/box_expr.rs:7:13: 7:25
-        drop(_2) -> bb4;                 // bb2[1]: scope 0 at $DIR/box_expr.rs:7:24: 7:25
+        _1 = move _2;                    // scope 0 at $DIR/box_expr.rs:7:13: 7:25
+        drop(_2) -> bb4;                 // scope 0 at $DIR/box_expr.rs:7:24: 7:25
     }
 
     bb3 (cleanup): {
-        drop(_2) -> bb1;                 // bb3[0]: scope 0 at $DIR/box_expr.rs:7:24: 7:25
+        drop(_2) -> bb1;                 // scope 0 at $DIR/box_expr.rs:7:24: 7:25
     }
 
     bb4: {
-        StorageDead(_2);                 // bb4[0]: scope 0 at $DIR/box_expr.rs:7:24: 7:25
-        StorageLive(_3);                 // bb4[1]: scope 1 at $DIR/box_expr.rs:8:5: 8:12
-        StorageLive(_4);                 // bb4[2]: scope 1 at $DIR/box_expr.rs:8:10: 8:11
-        _4 = move _1;                    // bb4[3]: scope 1 at $DIR/box_expr.rs:8:10: 8:11
-        _3 = const std::mem::drop::<std::boxed::Box<S>>(move _4) -> [return: bb5, unwind: bb7]; // bb4[4]: scope 1 at $DIR/box_expr.rs:8:5: 8:12
+        StorageDead(_2);                 // scope 0 at $DIR/box_expr.rs:7:24: 7:25
+        StorageLive(_3);                 // scope 1 at $DIR/box_expr.rs:8:5: 8:12
+        StorageLive(_4);                 // scope 1 at $DIR/box_expr.rs:8:10: 8:11
+        _4 = move _1;                    // scope 1 at $DIR/box_expr.rs:8:10: 8:11
+        _3 = const std::mem::drop::<std::boxed::Box<S>>(move _4) -> [return: bb5, unwind: bb7]; // scope 1 at $DIR/box_expr.rs:8:5: 8:12
                                          // ty::Const
                                          // + ty: fn(std::boxed::Box<S>) {std::mem::drop::<std::boxed::Box<S>>}
                                          // + val: Value(Scalar(<ZST>))
@@ -51,28 +51,28 @@ fn main() -> () {
     }
 
     bb5: {
-        StorageDead(_4);                 // bb5[0]: scope 1 at $DIR/box_expr.rs:8:11: 8:12
-        StorageDead(_3);                 // bb5[1]: scope 1 at $DIR/box_expr.rs:8:12: 8:13
-        _0 = const ();                   // bb5[2]: scope 0 at $DIR/box_expr.rs:6:11: 9:2
+        StorageDead(_4);                 // scope 1 at $DIR/box_expr.rs:8:11: 8:12
+        StorageDead(_3);                 // scope 1 at $DIR/box_expr.rs:8:12: 8:13
+        _0 = const ();                   // scope 0 at $DIR/box_expr.rs:6:11: 9:2
                                          // ty::Const
                                          // + ty: ()
                                          // + val: Value(Scalar(<ZST>))
                                          // mir::Constant
                                          // + span: $DIR/box_expr.rs:6:11: 9:2
                                          // + literal: Const { ty: (), val: Value(Scalar(<ZST>)) }
-        drop(_1) -> bb8;                 // bb5[3]: scope 0 at $DIR/box_expr.rs:9:1: 9:2
+        drop(_1) -> bb8;                 // scope 0 at $DIR/box_expr.rs:9:1: 9:2
     }
 
     bb6 (cleanup): {
-        drop(_1) -> bb1;                 // bb6[0]: scope 0 at $DIR/box_expr.rs:9:1: 9:2
+        drop(_1) -> bb1;                 // scope 0 at $DIR/box_expr.rs:9:1: 9:2
     }
 
     bb7 (cleanup): {
-        drop(_4) -> bb6;                 // bb7[0]: scope 1 at $DIR/box_expr.rs:8:11: 8:12
+        drop(_4) -> bb6;                 // scope 1 at $DIR/box_expr.rs:8:11: 8:12
     }
 
     bb8: {
-        StorageDead(_1);                 // bb8[0]: scope 0 at $DIR/box_expr.rs:9:1: 9:2
-        return;                          // bb8[1]: scope 0 at $DIR/box_expr.rs:9:2: 9:2
+        StorageDead(_1);                 // scope 0 at $DIR/box_expr.rs:9:1: 9:2
+        return;                          // scope 0 at $DIR/box_expr.rs:9:2: 9:2
     }
 }
diff --git a/src/test/mir-opt/byte_slice/rustc.main.SimplifyCfg-elaborate-drops.after.mir b/src/test/mir-opt/byte_slice/rustc.main.SimplifyCfg-elaborate-drops.after.mir
index 4477b8a3f0d..b8ecaf787fe 100644
--- a/src/test/mir-opt/byte_slice/rustc.main.SimplifyCfg-elaborate-drops.after.mir
+++ b/src/test/mir-opt/byte_slice/rustc.main.SimplifyCfg-elaborate-drops.after.mir
@@ -12,16 +12,16 @@ fn main() -> () {
     }
 
     bb0: {
-        StorageLive(_1);                 // bb0[0]: scope 0 at $DIR/byte_slice.rs:5:9: 5:10
-        _1 = const b"foo";               // bb0[1]: scope 0 at $DIR/byte_slice.rs:5:13: 5:19
+        StorageLive(_1);                 // scope 0 at $DIR/byte_slice.rs:5:9: 5:10
+        _1 = const b"foo";               // scope 0 at $DIR/byte_slice.rs:5:13: 5:19
                                          // ty::Const
                                          // + ty: &[u8; 3]
                                          // + val: Value(Scalar(alloc0+0x0))
                                          // mir::Constant
                                          // + span: $DIR/byte_slice.rs:5:13: 5:19
                                          // + literal: Const { ty: &[u8; 3], val: Value(Scalar(alloc0+0x0)) }
-        StorageLive(_2);                 // bb0[2]: scope 1 at $DIR/byte_slice.rs:6:9: 6:10
-        _2 = [const 5u8, const 120u8];   // bb0[3]: scope 1 at $DIR/byte_slice.rs:6:13: 6:24
+        StorageLive(_2);                 // scope 1 at $DIR/byte_slice.rs:6:9: 6:10
+        _2 = [const 5u8, const 120u8];   // scope 1 at $DIR/byte_slice.rs:6:13: 6:24
                                          // ty::Const
                                          // + ty: u8
                                          // + val: Value(Scalar(0x05))
@@ -34,16 +34,16 @@ fn main() -> () {
                                          // mir::Constant
                                          // + span: $DIR/byte_slice.rs:6:19: 6:23
                                          // + literal: Const { ty: u8, val: Value(Scalar(0x78)) }
-        _0 = const ();                   // bb0[4]: scope 0 at $DIR/byte_slice.rs:4:11: 7:2
+        _0 = const ();                   // scope 0 at $DIR/byte_slice.rs:4:11: 7:2
                                          // ty::Const
                                          // + ty: ()
                                          // + val: Value(Scalar(<ZST>))
                                          // mir::Constant
                                          // + span: $DIR/byte_slice.rs:4:11: 7:2
                                          // + literal: Const { ty: (), val: Value(Scalar(<ZST>)) }
-        StorageDead(_2);                 // bb0[5]: scope 1 at $DIR/byte_slice.rs:7:1: 7:2
-        StorageDead(_1);                 // bb0[6]: scope 0 at $DIR/byte_slice.rs:7:1: 7:2
-        return;                          // bb0[7]: scope 0 at $DIR/byte_slice.rs:7:2: 7:2
+        StorageDead(_2);                 // scope 1 at $DIR/byte_slice.rs:7:1: 7:2
+        StorageDead(_1);                 // scope 0 at $DIR/byte_slice.rs:7:1: 7:2
+        return;                          // scope 0 at $DIR/byte_slice.rs:7:2: 7:2
     }
 }
 
diff --git a/src/test/mir-opt/combine_array_len/32bit/rustc.norm2.InstCombine.diff b/src/test/mir-opt/combine_array_len/32bit/rustc.norm2.InstCombine.diff
index 1deeee0f612..e11619cf0cd 100644
--- a/src/test/mir-opt/combine_array_len/32bit/rustc.norm2.InstCombine.diff
+++ b/src/test/mir-opt/combine_array_len/32bit/rustc.norm2.InstCombine.diff
@@ -26,76 +26,76 @@
       }
   
       bb0: {
-          StorageLive(_2);                 // bb0[0]: scope 0 at $DIR/combine_array_len.rs:5:9: 5:10
-          StorageLive(_3);                 // bb0[1]: scope 0 at $DIR/combine_array_len.rs:5:15: 5:16
-          _3 = const 0usize;               // bb0[2]: scope 0 at $DIR/combine_array_len.rs:5:15: 5:16
+          StorageLive(_2);                 // scope 0 at $DIR/combine_array_len.rs:5:9: 5:10
+          StorageLive(_3);                 // scope 0 at $DIR/combine_array_len.rs:5:15: 5:16
+          _3 = const 0usize;               // scope 0 at $DIR/combine_array_len.rs:5:15: 5:16
                                            // ty::Const
                                            // + ty: usize
                                            // + val: Value(Scalar(0x00000000))
                                            // mir::Constant
                                            // + span: $DIR/combine_array_len.rs:5:15: 5:16
                                            // + literal: Const { ty: usize, val: Value(Scalar(0x00000000)) }
--         _4 = Len(_1);                    // bb0[3]: scope 0 at $DIR/combine_array_len.rs:5:13: 5:17
-+         _4 = const 2usize;               // bb0[3]: scope 0 at $DIR/combine_array_len.rs:5:13: 5:17
+-         _4 = Len(_1);                    // scope 0 at $DIR/combine_array_len.rs:5:13: 5:17
++         _4 = const 2usize;               // scope 0 at $DIR/combine_array_len.rs:5:13: 5:17
 +                                          // ty::Const
 +                                          // + ty: usize
 +                                          // + val: Value(Scalar(0x00000002))
 +                                          // mir::Constant
 +                                          // + span: $DIR/combine_array_len.rs:5:13: 5:17
 +                                          // + literal: Const { ty: usize, val: Value(Scalar(0x00000002)) }
-          _5 = Lt(_3, _4);                 // bb0[4]: scope 0 at $DIR/combine_array_len.rs:5:13: 5:17
-          assert(move _5, "index out of bounds: the len is {} but the index is {}", move _4, _3) -> bb1; // bb0[5]: scope 0 at $DIR/combine_array_len.rs:5:13: 5:17
+          _5 = Lt(_3, _4);                 // scope 0 at $DIR/combine_array_len.rs:5:13: 5:17
+          assert(move _5, "index out of bounds: the len is {} but the index is {}", move _4, _3) -> bb1; // scope 0 at $DIR/combine_array_len.rs:5:13: 5:17
       }
   
       bb1: {
-          _2 = _1[_3];                     // bb1[0]: scope 0 at $DIR/combine_array_len.rs:5:13: 5:17
-          StorageDead(_3);                 // bb1[1]: scope 0 at $DIR/combine_array_len.rs:5:17: 5:18
-          StorageLive(_6);                 // bb1[2]: scope 1 at $DIR/combine_array_len.rs:6:9: 6:10
-          StorageLive(_7);                 // bb1[3]: scope 1 at $DIR/combine_array_len.rs:6:15: 6:16
-          _7 = const 1usize;               // bb1[4]: scope 1 at $DIR/combine_array_len.rs:6:15: 6:16
+          _2 = _1[_3];                     // scope 0 at $DIR/combine_array_len.rs:5:13: 5:17
+          StorageDead(_3);                 // scope 0 at $DIR/combine_array_len.rs:5:17: 5:18
+          StorageLive(_6);                 // scope 1 at $DIR/combine_array_len.rs:6:9: 6:10
+          StorageLive(_7);                 // scope 1 at $DIR/combine_array_len.rs:6:15: 6:16
+          _7 = const 1usize;               // scope 1 at $DIR/combine_array_len.rs:6:15: 6:16
                                            // ty::Const
                                            // + ty: usize
                                            // + val: Value(Scalar(0x00000001))
                                            // mir::Constant
                                            // + span: $DIR/combine_array_len.rs:6:15: 6:16
                                            // + literal: Const { ty: usize, val: Value(Scalar(0x00000001)) }
--         _8 = Len(_1);                    // bb1[5]: scope 1 at $DIR/combine_array_len.rs:6:13: 6:17
-+         _8 = const 2usize;               // bb1[5]: scope 1 at $DIR/combine_array_len.rs:6:13: 6:17
+-         _8 = Len(_1);                    // scope 1 at $DIR/combine_array_len.rs:6:13: 6:17
++         _8 = const 2usize;               // scope 1 at $DIR/combine_array_len.rs:6:13: 6:17
 +                                          // ty::Const
 +                                          // + ty: usize
 +                                          // + val: Value(Scalar(0x00000002))
 +                                          // mir::Constant
 +                                          // + span: $DIR/combine_array_len.rs:6:13: 6:17
 +                                          // + literal: Const { ty: usize, val: Value(Scalar(0x00000002)) }
-          _9 = Lt(_7, _8);                 // bb1[6]: scope 1 at $DIR/combine_array_len.rs:6:13: 6:17
-          assert(move _9, "index out of bounds: the len is {} but the index is {}", move _8, _7) -> bb2; // bb1[7]: scope 1 at $DIR/combine_array_len.rs:6:13: 6:17
+          _9 = Lt(_7, _8);                 // scope 1 at $DIR/combine_array_len.rs:6:13: 6:17
+          assert(move _9, "index out of bounds: the len is {} but the index is {}", move _8, _7) -> bb2; // scope 1 at $DIR/combine_array_len.rs:6:13: 6:17
       }
   
       bb2: {
-          _6 = _1[_7];                     // bb2[0]: scope 1 at $DIR/combine_array_len.rs:6:13: 6:17
-          StorageDead(_7);                 // bb2[1]: scope 1 at $DIR/combine_array_len.rs:6:17: 6:18
-          StorageLive(_10);                // bb2[2]: scope 2 at $DIR/combine_array_len.rs:7:5: 7:8
-          StorageLive(_11);                // bb2[3]: scope 2 at $DIR/combine_array_len.rs:7:5: 7:6
-          _11 = _2;                        // bb2[4]: scope 2 at $DIR/combine_array_len.rs:7:5: 7:6
-          StorageLive(_12);                // bb2[5]: scope 2 at $DIR/combine_array_len.rs:7:7: 7:8
-          _12 = _2;                        // bb2[6]: scope 2 at $DIR/combine_array_len.rs:7:7: 7:8
-          _10 = Mul(move _11, move _12);   // bb2[7]: scope 2 at $DIR/combine_array_len.rs:7:5: 7:8
-          StorageDead(_12);                // bb2[8]: scope 2 at $DIR/combine_array_len.rs:7:7: 7:8
-          StorageDead(_11);                // bb2[9]: scope 2 at $DIR/combine_array_len.rs:7:7: 7:8
-          StorageLive(_13);                // bb2[10]: scope 2 at $DIR/combine_array_len.rs:7:11: 7:14
-          StorageLive(_14);                // bb2[11]: scope 2 at $DIR/combine_array_len.rs:7:11: 7:12
-          _14 = _6;                        // bb2[12]: scope 2 at $DIR/combine_array_len.rs:7:11: 7:12
-          StorageLive(_15);                // bb2[13]: scope 2 at $DIR/combine_array_len.rs:7:13: 7:14
-          _15 = _6;                        // bb2[14]: scope 2 at $DIR/combine_array_len.rs:7:13: 7:14
-          _13 = Mul(move _14, move _15);   // bb2[15]: scope 2 at $DIR/combine_array_len.rs:7:11: 7:14
-          StorageDead(_15);                // bb2[16]: scope 2 at $DIR/combine_array_len.rs:7:13: 7:14
-          StorageDead(_14);                // bb2[17]: scope 2 at $DIR/combine_array_len.rs:7:13: 7:14
-          _0 = Add(move _10, move _13);    // bb2[18]: scope 2 at $DIR/combine_array_len.rs:7:5: 7:14
-          StorageDead(_13);                // bb2[19]: scope 2 at $DIR/combine_array_len.rs:7:13: 7:14
-          StorageDead(_10);                // bb2[20]: scope 2 at $DIR/combine_array_len.rs:7:13: 7:14
-          StorageDead(_6);                 // bb2[21]: scope 1 at $DIR/combine_array_len.rs:8:1: 8:2
-          StorageDead(_2);                 // bb2[22]: scope 0 at $DIR/combine_array_len.rs:8:1: 8:2
-          return;                          // bb2[23]: scope 0 at $DIR/combine_array_len.rs:8:2: 8:2
+          _6 = _1[_7];                     // scope 1 at $DIR/combine_array_len.rs:6:13: 6:17
+          StorageDead(_7);                 // scope 1 at $DIR/combine_array_len.rs:6:17: 6:18
+          StorageLive(_10);                // scope 2 at $DIR/combine_array_len.rs:7:5: 7:8
+          StorageLive(_11);                // scope 2 at $DIR/combine_array_len.rs:7:5: 7:6
+          _11 = _2;                        // scope 2 at $DIR/combine_array_len.rs:7:5: 7:6
+          StorageLive(_12);                // scope 2 at $DIR/combine_array_len.rs:7:7: 7:8
+          _12 = _2;                        // scope 2 at $DIR/combine_array_len.rs:7:7: 7:8
+          _10 = Mul(move _11, move _12);   // scope 2 at $DIR/combine_array_len.rs:7:5: 7:8
+          StorageDead(_12);                // scope 2 at $DIR/combine_array_len.rs:7:7: 7:8
+          StorageDead(_11);                // scope 2 at $DIR/combine_array_len.rs:7:7: 7:8
+          StorageLive(_13);                // scope 2 at $DIR/combine_array_len.rs:7:11: 7:14
+          StorageLive(_14);                // scope 2 at $DIR/combine_array_len.rs:7:11: 7:12
+          _14 = _6;                        // scope 2 at $DIR/combine_array_len.rs:7:11: 7:12
+          StorageLive(_15);                // scope 2 at $DIR/combine_array_len.rs:7:13: 7:14
+          _15 = _6;                        // scope 2 at $DIR/combine_array_len.rs:7:13: 7:14
+          _13 = Mul(move _14, move _15);   // scope 2 at $DIR/combine_array_len.rs:7:11: 7:14
+          StorageDead(_15);                // scope 2 at $DIR/combine_array_len.rs:7:13: 7:14
+          StorageDead(_14);                // scope 2 at $DIR/combine_array_len.rs:7:13: 7:14
+          _0 = Add(move _10, move _13);    // scope 2 at $DIR/combine_array_len.rs:7:5: 7:14
+          StorageDead(_13);                // scope 2 at $DIR/combine_array_len.rs:7:13: 7:14
+          StorageDead(_10);                // scope 2 at $DIR/combine_array_len.rs:7:13: 7:14
+          StorageDead(_6);                 // scope 1 at $DIR/combine_array_len.rs:8:1: 8:2
+          StorageDead(_2);                 // scope 0 at $DIR/combine_array_len.rs:8:1: 8:2
+          return;                          // scope 0 at $DIR/combine_array_len.rs:8:2: 8:2
       }
   }
   
diff --git a/src/test/mir-opt/combine_array_len/64bit/rustc.norm2.InstCombine.diff b/src/test/mir-opt/combine_array_len/64bit/rustc.norm2.InstCombine.diff
index 7120829e2b5..050cfe359a1 100644
--- a/src/test/mir-opt/combine_array_len/64bit/rustc.norm2.InstCombine.diff
+++ b/src/test/mir-opt/combine_array_len/64bit/rustc.norm2.InstCombine.diff
@@ -26,76 +26,76 @@
       }
   
       bb0: {
-          StorageLive(_2);                 // bb0[0]: scope 0 at $DIR/combine_array_len.rs:5:9: 5:10
-          StorageLive(_3);                 // bb0[1]: scope 0 at $DIR/combine_array_len.rs:5:15: 5:16
-          _3 = const 0usize;               // bb0[2]: scope 0 at $DIR/combine_array_len.rs:5:15: 5:16
+          StorageLive(_2);                 // scope 0 at $DIR/combine_array_len.rs:5:9: 5:10
+          StorageLive(_3);                 // scope 0 at $DIR/combine_array_len.rs:5:15: 5:16
+          _3 = const 0usize;               // scope 0 at $DIR/combine_array_len.rs:5:15: 5:16
                                            // ty::Const
                                            // + ty: usize
                                            // + val: Value(Scalar(0x0000000000000000))
                                            // mir::Constant
                                            // + span: $DIR/combine_array_len.rs:5:15: 5:16
                                            // + literal: Const { ty: usize, val: Value(Scalar(0x0000000000000000)) }
--         _4 = Len(_1);                    // bb0[3]: scope 0 at $DIR/combine_array_len.rs:5:13: 5:17
-+         _4 = const 2usize;               // bb0[3]: scope 0 at $DIR/combine_array_len.rs:5:13: 5:17
+-         _4 = Len(_1);                    // scope 0 at $DIR/combine_array_len.rs:5:13: 5:17
++         _4 = const 2usize;               // scope 0 at $DIR/combine_array_len.rs:5:13: 5:17
 +                                          // ty::Const
 +                                          // + ty: usize
 +                                          // + val: Value(Scalar(0x0000000000000002))
 +                                          // mir::Constant
 +                                          // + span: $DIR/combine_array_len.rs:5:13: 5:17
 +                                          // + literal: Const { ty: usize, val: Value(Scalar(0x0000000000000002)) }
-          _5 = Lt(_3, _4);                 // bb0[4]: scope 0 at $DIR/combine_array_len.rs:5:13: 5:17
-          assert(move _5, "index out of bounds: the len is {} but the index is {}", move _4, _3) -> bb1; // bb0[5]: scope 0 at $DIR/combine_array_len.rs:5:13: 5:17
+          _5 = Lt(_3, _4);                 // scope 0 at $DIR/combine_array_len.rs:5:13: 5:17
+          assert(move _5, "index out of bounds: the len is {} but the index is {}", move _4, _3) -> bb1; // scope 0 at $DIR/combine_array_len.rs:5:13: 5:17
       }
   
       bb1: {
-          _2 = _1[_3];                     // bb1[0]: scope 0 at $DIR/combine_array_len.rs:5:13: 5:17
-          StorageDead(_3);                 // bb1[1]: scope 0 at $DIR/combine_array_len.rs:5:17: 5:18
-          StorageLive(_6);                 // bb1[2]: scope 1 at $DIR/combine_array_len.rs:6:9: 6:10
-          StorageLive(_7);                 // bb1[3]: scope 1 at $DIR/combine_array_len.rs:6:15: 6:16
-          _7 = const 1usize;               // bb1[4]: scope 1 at $DIR/combine_array_len.rs:6:15: 6:16
+          _2 = _1[_3];                     // scope 0 at $DIR/combine_array_len.rs:5:13: 5:17
+          StorageDead(_3);                 // scope 0 at $DIR/combine_array_len.rs:5:17: 5:18
+          StorageLive(_6);                 // scope 1 at $DIR/combine_array_len.rs:6:9: 6:10
+          StorageLive(_7);                 // scope 1 at $DIR/combine_array_len.rs:6:15: 6:16
+          _7 = const 1usize;               // scope 1 at $DIR/combine_array_len.rs:6:15: 6:16
                                            // ty::Const
                                            // + ty: usize
                                            // + val: Value(Scalar(0x0000000000000001))
                                            // mir::Constant
                                            // + span: $DIR/combine_array_len.rs:6:15: 6:16
                                            // + literal: Const { ty: usize, val: Value(Scalar(0x0000000000000001)) }
--         _8 = Len(_1);                    // bb1[5]: scope 1 at $DIR/combine_array_len.rs:6:13: 6:17
-+         _8 = const 2usize;               // bb1[5]: scope 1 at $DIR/combine_array_len.rs:6:13: 6:17
+-         _8 = Len(_1);                    // scope 1 at $DIR/combine_array_len.rs:6:13: 6:17
++         _8 = const 2usize;               // scope 1 at $DIR/combine_array_len.rs:6:13: 6:17
 +                                          // ty::Const
 +                                          // + ty: usize
 +                                          // + val: Value(Scalar(0x0000000000000002))
 +                                          // mir::Constant
 +                                          // + span: $DIR/combine_array_len.rs:6:13: 6:17
 +                                          // + literal: Const { ty: usize, val: Value(Scalar(0x0000000000000002)) }
-          _9 = Lt(_7, _8);                 // bb1[6]: scope 1 at $DIR/combine_array_len.rs:6:13: 6:17
-          assert(move _9, "index out of bounds: the len is {} but the index is {}", move _8, _7) -> bb2; // bb1[7]: scope 1 at $DIR/combine_array_len.rs:6:13: 6:17
+          _9 = Lt(_7, _8);                 // scope 1 at $DIR/combine_array_len.rs:6:13: 6:17
+          assert(move _9, "index out of bounds: the len is {} but the index is {}", move _8, _7) -> bb2; // scope 1 at $DIR/combine_array_len.rs:6:13: 6:17
       }
   
       bb2: {
-          _6 = _1[_7];                     // bb2[0]: scope 1 at $DIR/combine_array_len.rs:6:13: 6:17
-          StorageDead(_7);                 // bb2[1]: scope 1 at $DIR/combine_array_len.rs:6:17: 6:18
-          StorageLive(_10);                // bb2[2]: scope 2 at $DIR/combine_array_len.rs:7:5: 7:8
-          StorageLive(_11);                // bb2[3]: scope 2 at $DIR/combine_array_len.rs:7:5: 7:6
-          _11 = _2;                        // bb2[4]: scope 2 at $DIR/combine_array_len.rs:7:5: 7:6
-          StorageLive(_12);                // bb2[5]: scope 2 at $DIR/combine_array_len.rs:7:7: 7:8
-          _12 = _2;                        // bb2[6]: scope 2 at $DIR/combine_array_len.rs:7:7: 7:8
-          _10 = Mul(move _11, move _12);   // bb2[7]: scope 2 at $DIR/combine_array_len.rs:7:5: 7:8
-          StorageDead(_12);                // bb2[8]: scope 2 at $DIR/combine_array_len.rs:7:7: 7:8
-          StorageDead(_11);                // bb2[9]: scope 2 at $DIR/combine_array_len.rs:7:7: 7:8
-          StorageLive(_13);                // bb2[10]: scope 2 at $DIR/combine_array_len.rs:7:11: 7:14
-          StorageLive(_14);                // bb2[11]: scope 2 at $DIR/combine_array_len.rs:7:11: 7:12
-          _14 = _6;                        // bb2[12]: scope 2 at $DIR/combine_array_len.rs:7:11: 7:12
-          StorageLive(_15);                // bb2[13]: scope 2 at $DIR/combine_array_len.rs:7:13: 7:14
-          _15 = _6;                        // bb2[14]: scope 2 at $DIR/combine_array_len.rs:7:13: 7:14
-          _13 = Mul(move _14, move _15);   // bb2[15]: scope 2 at $DIR/combine_array_len.rs:7:11: 7:14
-          StorageDead(_15);                // bb2[16]: scope 2 at $DIR/combine_array_len.rs:7:13: 7:14
-          StorageDead(_14);                // bb2[17]: scope 2 at $DIR/combine_array_len.rs:7:13: 7:14
-          _0 = Add(move _10, move _13);    // bb2[18]: scope 2 at $DIR/combine_array_len.rs:7:5: 7:14
-          StorageDead(_13);                // bb2[19]: scope 2 at $DIR/combine_array_len.rs:7:13: 7:14
-          StorageDead(_10);                // bb2[20]: scope 2 at $DIR/combine_array_len.rs:7:13: 7:14
-          StorageDead(_6);                 // bb2[21]: scope 1 at $DIR/combine_array_len.rs:8:1: 8:2
-          StorageDead(_2);                 // bb2[22]: scope 0 at $DIR/combine_array_len.rs:8:1: 8:2
-          return;                          // bb2[23]: scope 0 at $DIR/combine_array_len.rs:8:2: 8:2
+          _6 = _1[_7];                     // scope 1 at $DIR/combine_array_len.rs:6:13: 6:17
+          StorageDead(_7);                 // scope 1 at $DIR/combine_array_len.rs:6:17: 6:18
+          StorageLive(_10);                // scope 2 at $DIR/combine_array_len.rs:7:5: 7:8
+          StorageLive(_11);                // scope 2 at $DIR/combine_array_len.rs:7:5: 7:6
+          _11 = _2;                        // scope 2 at $DIR/combine_array_len.rs:7:5: 7:6
+          StorageLive(_12);                // scope 2 at $DIR/combine_array_len.rs:7:7: 7:8
+          _12 = _2;                        // scope 2 at $DIR/combine_array_len.rs:7:7: 7:8
+          _10 = Mul(move _11, move _12);   // scope 2 at $DIR/combine_array_len.rs:7:5: 7:8
+          StorageDead(_12);                // scope 2 at $DIR/combine_array_len.rs:7:7: 7:8
+          StorageDead(_11);                // scope 2 at $DIR/combine_array_len.rs:7:7: 7:8
+          StorageLive(_13);                // scope 2 at $DIR/combine_array_len.rs:7:11: 7:14
+          StorageLive(_14);                // scope 2 at $DIR/combine_array_len.rs:7:11: 7:12
+          _14 = _6;                        // scope 2 at $DIR/combine_array_len.rs:7:11: 7:12
+          StorageLive(_15);                // scope 2 at $DIR/combine_array_len.rs:7:13: 7:14
+          _15 = _6;                        // scope 2 at $DIR/combine_array_len.rs:7:13: 7:14
+          _13 = Mul(move _14, move _15);   // scope 2 at $DIR/combine_array_len.rs:7:11: 7:14
+          StorageDead(_15);                // scope 2 at $DIR/combine_array_len.rs:7:13: 7:14
+          StorageDead(_14);                // scope 2 at $DIR/combine_array_len.rs:7:13: 7:14
+          _0 = Add(move _10, move _13);    // scope 2 at $DIR/combine_array_len.rs:7:5: 7:14
+          StorageDead(_13);                // scope 2 at $DIR/combine_array_len.rs:7:13: 7:14
+          StorageDead(_10);                // scope 2 at $DIR/combine_array_len.rs:7:13: 7:14
+          StorageDead(_6);                 // scope 1 at $DIR/combine_array_len.rs:8:1: 8:2
+          StorageDead(_2);                 // scope 0 at $DIR/combine_array_len.rs:8:1: 8:2
+          return;                          // scope 0 at $DIR/combine_array_len.rs:8:2: 8:2
       }
   }
   
diff --git a/src/test/mir-opt/const-promotion-extern-static/rustc.BAR-promoted[0].ConstProp.after.mir b/src/test/mir-opt/const-promotion-extern-static/rustc.BAR-promoted[0].ConstProp.after.mir
index c8456dbbd61..d202531c7ab 100644
--- a/src/test/mir-opt/const-promotion-extern-static/rustc.BAR-promoted[0].ConstProp.after.mir
+++ b/src/test/mir-opt/const-promotion-extern-static/rustc.BAR-promoted[0].ConstProp.after.mir
@@ -7,17 +7,17 @@ promoted[0] in BAR: &[&i32; 1] = {
     let mut _3: &i32;                    // in scope 0 at $DIR/const-promotion-extern-static.rs:9:33: 9:34
 
     bb0: {
-        _3 = const {alloc0+0x0: &i32};   // bb0[0]: scope 0 at $DIR/const-promotion-extern-static.rs:9:33: 9:34
+        _3 = const {alloc0+0x0: &i32};   // scope 0 at $DIR/const-promotion-extern-static.rs:9:33: 9:34
                                          // ty::Const
                                          // + ty: &i32
                                          // + val: Value(Scalar(alloc0+0x0))
                                          // mir::Constant
                                          // + span: $DIR/const-promotion-extern-static.rs:9:33: 9:34
                                          // + literal: Const { ty: &i32, val: Value(Scalar(alloc0+0x0)) }
-        _2 = _3;                         // bb0[1]: scope 0 at $DIR/const-promotion-extern-static.rs:9:32: 9:34
-        _1 = [move _2];                  // bb0[2]: scope 0 at $DIR/const-promotion-extern-static.rs:9:31: 9:35
-        _0 = &_1;                        // bb0[3]: scope 0 at $DIR/const-promotion-extern-static.rs:9:31: 9:35
-        return;                          // bb0[4]: scope 0 at $DIR/const-promotion-extern-static.rs:9:31: 9:35
+        _2 = _3;                         // scope 0 at $DIR/const-promotion-extern-static.rs:9:32: 9:34
+        _1 = [move _2];                  // scope 0 at $DIR/const-promotion-extern-static.rs:9:31: 9:35
+        _0 = &_1;                        // scope 0 at $DIR/const-promotion-extern-static.rs:9:31: 9:35
+        return;                          // scope 0 at $DIR/const-promotion-extern-static.rs:9:31: 9:35
     }
 }
 
diff --git a/src/test/mir-opt/const-promotion-extern-static/rustc.BAR.PromoteTemps.diff b/src/test/mir-opt/const-promotion-extern-static/rustc.BAR.PromoteTemps.diff
index dc71961d4e3..5b98830c629 100644
--- a/src/test/mir-opt/const-promotion-extern-static/rustc.BAR.PromoteTemps.diff
+++ b/src/test/mir-opt/const-promotion-extern-static/rustc.BAR.PromoteTemps.diff
@@ -11,13 +11,13 @@
 +     let mut _6: &[&i32; 1];              // in scope 0 at $DIR/const-promotion-extern-static.rs:9:31: 9:35
   
       bb0: {
-          StorageLive(_1);                 // bb0[0]: scope 0 at $DIR/const-promotion-extern-static.rs:9:31: 9:35
-          StorageLive(_2);                 // bb0[1]: scope 0 at $DIR/const-promotion-extern-static.rs:9:31: 9:35
--         StorageLive(_3);                 // bb0[2]: scope 0 at $DIR/const-promotion-extern-static.rs:9:31: 9:35
--         StorageLive(_4);                 // bb0[3]: scope 0 at $DIR/const-promotion-extern-static.rs:9:32: 9:34
--         StorageLive(_5);                 // bb0[4]: scope 0 at $DIR/const-promotion-extern-static.rs:9:33: 9:34
--         _5 = const {alloc0+0x0: &i32};   // bb0[5]: scope 0 at $DIR/const-promotion-extern-static.rs:9:33: 9:34
-+         _6 = const BAR::promoted[0];     // bb0[2]: scope 0 at $DIR/const-promotion-extern-static.rs:9:31: 9:35
+          StorageLive(_1);                 // scope 0 at $DIR/const-promotion-extern-static.rs:9:31: 9:35
+          StorageLive(_2);                 // scope 0 at $DIR/const-promotion-extern-static.rs:9:31: 9:35
+-         StorageLive(_3);                 // scope 0 at $DIR/const-promotion-extern-static.rs:9:31: 9:35
+-         StorageLive(_4);                 // scope 0 at $DIR/const-promotion-extern-static.rs:9:32: 9:34
+-         StorageLive(_5);                 // scope 0 at $DIR/const-promotion-extern-static.rs:9:33: 9:34
+-         _5 = const {alloc0+0x0: &i32};   // scope 0 at $DIR/const-promotion-extern-static.rs:9:33: 9:34
++         _6 = const BAR::promoted[0];     // scope 0 at $DIR/const-promotion-extern-static.rs:9:31: 9:35
                                            // ty::Const
 -                                          // + ty: &i32
 -                                          // + val: Value(Scalar(alloc0+0x0))
@@ -26,16 +26,14 @@
                                            // mir::Constant
 -                                          // + span: $DIR/const-promotion-extern-static.rs:9:33: 9:34
 -                                          // + literal: Const { ty: &i32, val: Value(Scalar(alloc0+0x0)) }
--         _4 = &(*_5);                     // bb0[6]: scope 0 at $DIR/const-promotion-extern-static.rs:9:32: 9:34
--         _3 = [move _4];                  // bb0[7]: scope 0 at $DIR/const-promotion-extern-static.rs:9:31: 9:35
--         _2 = &_3;                        // bb0[8]: scope 0 at $DIR/const-promotion-extern-static.rs:9:31: 9:35
--         _1 = move _2 as &[&i32] (Pointer(Unsize)); // bb0[9]: scope 0 at $DIR/const-promotion-extern-static.rs:9:31: 9:35
--         _0 = const core::slice::<impl [&i32]>::as_ptr(move _1) -> [return: bb2, unwind: bb1]; // bb0[10]: scope 0 at $DIR/const-promotion-extern-static.rs:9:31: 9:44
+-         _4 = &(*_5);                     // scope 0 at $DIR/const-promotion-extern-static.rs:9:32: 9:34
+-         _3 = [move _4];                  // scope 0 at $DIR/const-promotion-extern-static.rs:9:31: 9:35
+-         _2 = &_3;                        // scope 0 at $DIR/const-promotion-extern-static.rs:9:31: 9:35
 +                                          // + span: $DIR/const-promotion-extern-static.rs:9:31: 9:35
 +                                          // + literal: Const { ty: &[&i32; 1], val: Unevaluated(DefId(0:6 ~ const_promotion_extern_static[317d]::BAR[0]), [], Some(promoted[0])) }
-+         _2 = &(*_6);                     // bb0[3]: scope 0 at $DIR/const-promotion-extern-static.rs:9:31: 9:35
-+         _1 = move _2 as &[&i32] (Pointer(Unsize)); // bb0[4]: scope 0 at $DIR/const-promotion-extern-static.rs:9:31: 9:35
-+         _0 = const core::slice::<impl [&i32]>::as_ptr(move _1) -> [return: bb2, unwind: bb1]; // bb0[5]: scope 0 at $DIR/const-promotion-extern-static.rs:9:31: 9:44
++         _2 = &(*_6);                     // scope 0 at $DIR/const-promotion-extern-static.rs:9:31: 9:35
+          _1 = move _2 as &[&i32] (Pointer(Unsize)); // scope 0 at $DIR/const-promotion-extern-static.rs:9:31: 9:35
+          _0 = const core::slice::<impl [&i32]>::as_ptr(move _1) -> [return: bb2, unwind: bb1]; // scope 0 at $DIR/const-promotion-extern-static.rs:9:31: 9:44
                                            // ty::Const
                                            // + ty: for<'r> fn(&'r [&i32]) -> *const &i32 {core::slice::<impl [&i32]>::as_ptr}
                                            // + val: Value(Scalar(<ZST>))
@@ -45,14 +43,13 @@
       }
   
       bb1 (cleanup): {
-          resume;                          // bb1[0]: scope 0 at $DIR/const-promotion-extern-static.rs:9:1: 9:45
+          resume;                          // scope 0 at $DIR/const-promotion-extern-static.rs:9:1: 9:45
       }
   
       bb2: {
--         StorageDead(_5);                 // bb2[0]: scope 0 at $DIR/const-promotion-extern-static.rs:9:43: 9:44
--         StorageDead(_3);                 // bb2[1]: scope 0 at $DIR/const-promotion-extern-static.rs:9:43: 9:44
--         return;                          // bb2[2]: scope 0 at $DIR/const-promotion-extern-static.rs:9:1: 9:45
-+         return;                          // bb2[0]: scope 0 at $DIR/const-promotion-extern-static.rs:9:1: 9:45
+-         StorageDead(_5);                 // scope 0 at $DIR/const-promotion-extern-static.rs:9:43: 9:44
+-         StorageDead(_3);                 // scope 0 at $DIR/const-promotion-extern-static.rs:9:43: 9:44
+          return;                          // scope 0 at $DIR/const-promotion-extern-static.rs:9:1: 9:45
       }
 - }
 - 
diff --git a/src/test/mir-opt/const-promotion-extern-static/rustc.FOO-promoted[0].ConstProp.after.mir b/src/test/mir-opt/const-promotion-extern-static/rustc.FOO-promoted[0].ConstProp.after.mir
index 7a1a95b448a..b49c1aaa866 100644
--- a/src/test/mir-opt/const-promotion-extern-static/rustc.FOO-promoted[0].ConstProp.after.mir
+++ b/src/test/mir-opt/const-promotion-extern-static/rustc.FOO-promoted[0].ConstProp.after.mir
@@ -9,17 +9,17 @@ promoted[0] in FOO: &[&i32; 1] = {
     }
 
     bb0: {
-        _3 = const {alloc2+0x0: &i32};   // bb0[0]: scope 0 at $DIR/const-promotion-extern-static.rs:13:42: 13:43
+        _3 = const {alloc2+0x0: &i32};   // scope 0 at $DIR/const-promotion-extern-static.rs:13:42: 13:43
                                          // ty::Const
                                          // + ty: &i32
                                          // + val: Value(Scalar(alloc2+0x0))
                                          // mir::Constant
                                          // + span: $DIR/const-promotion-extern-static.rs:13:42: 13:43
                                          // + literal: Const { ty: &i32, val: Value(Scalar(alloc2+0x0)) }
-        _2 = _3;                         // bb0[1]: scope 0 at $DIR/const-promotion-extern-static.rs:13:41: 13:43
-        _1 = [move _2];                  // bb0[2]: scope 0 at $DIR/const-promotion-extern-static.rs:13:31: 13:46
-        _0 = &_1;                        // bb0[3]: scope 0 at $DIR/const-promotion-extern-static.rs:13:31: 13:46
-        return;                          // bb0[4]: scope 0 at $DIR/const-promotion-extern-static.rs:13:31: 13:46
+        _2 = _3;                         // scope 0 at $DIR/const-promotion-extern-static.rs:13:41: 13:43
+        _1 = [move _2];                  // scope 0 at $DIR/const-promotion-extern-static.rs:13:31: 13:46
+        _0 = &_1;                        // scope 0 at $DIR/const-promotion-extern-static.rs:13:31: 13:46
+        return;                          // scope 0 at $DIR/const-promotion-extern-static.rs:13:31: 13:46
     }
 }
 
diff --git a/src/test/mir-opt/const-promotion-extern-static/rustc.FOO.PromoteTemps.diff b/src/test/mir-opt/const-promotion-extern-static/rustc.FOO.PromoteTemps.diff
index 18623743382..0724575b9d2 100644
--- a/src/test/mir-opt/const-promotion-extern-static/rustc.FOO.PromoteTemps.diff
+++ b/src/test/mir-opt/const-promotion-extern-static/rustc.FOO.PromoteTemps.diff
@@ -13,13 +13,13 @@
       }
   
       bb0: {
-          StorageLive(_1);                 // bb0[0]: scope 0 at $DIR/const-promotion-extern-static.rs:13:31: 13:46
-          StorageLive(_2);                 // bb0[1]: scope 0 at $DIR/const-promotion-extern-static.rs:13:31: 13:46
--         StorageLive(_3);                 // bb0[2]: scope 0 at $DIR/const-promotion-extern-static.rs:13:31: 13:46
--         StorageLive(_4);                 // bb0[3]: scope 0 at $DIR/const-promotion-extern-static.rs:13:32: 13:45
--         StorageLive(_5);                 // bb0[4]: scope 1 at $DIR/const-promotion-extern-static.rs:13:42: 13:43
--         _5 = const {alloc2+0x0: &i32};   // bb0[5]: scope 1 at $DIR/const-promotion-extern-static.rs:13:42: 13:43
-+         _6 = const FOO::promoted[0];     // bb0[2]: scope 0 at $DIR/const-promotion-extern-static.rs:13:31: 13:46
+          StorageLive(_1);                 // scope 0 at $DIR/const-promotion-extern-static.rs:13:31: 13:46
+          StorageLive(_2);                 // scope 0 at $DIR/const-promotion-extern-static.rs:13:31: 13:46
+-         StorageLive(_3);                 // scope 0 at $DIR/const-promotion-extern-static.rs:13:31: 13:46
+-         StorageLive(_4);                 // scope 0 at $DIR/const-promotion-extern-static.rs:13:32: 13:45
+-         StorageLive(_5);                 // scope 1 at $DIR/const-promotion-extern-static.rs:13:42: 13:43
+-         _5 = const {alloc2+0x0: &i32};   // scope 1 at $DIR/const-promotion-extern-static.rs:13:42: 13:43
++         _6 = const FOO::promoted[0];     // scope 0 at $DIR/const-promotion-extern-static.rs:13:31: 13:46
                                            // ty::Const
 -                                          // + ty: &i32
 -                                          // + val: Value(Scalar(alloc2+0x0))
@@ -28,16 +28,14 @@
                                            // mir::Constant
 -                                          // + span: $DIR/const-promotion-extern-static.rs:13:42: 13:43
 -                                          // + literal: Const { ty: &i32, val: Value(Scalar(alloc2+0x0)) }
--         _4 = &(*_5);                     // bb0[6]: scope 1 at $DIR/const-promotion-extern-static.rs:13:41: 13:43
--         _3 = [move _4];                  // bb0[7]: scope 0 at $DIR/const-promotion-extern-static.rs:13:31: 13:46
--         _2 = &_3;                        // bb0[8]: scope 0 at $DIR/const-promotion-extern-static.rs:13:31: 13:46
--         _1 = move _2 as &[&i32] (Pointer(Unsize)); // bb0[9]: scope 0 at $DIR/const-promotion-extern-static.rs:13:31: 13:46
--         _0 = const core::slice::<impl [&i32]>::as_ptr(move _1) -> [return: bb2, unwind: bb1]; // bb0[10]: scope 0 at $DIR/const-promotion-extern-static.rs:13:31: 13:55
+-         _4 = &(*_5);                     // scope 1 at $DIR/const-promotion-extern-static.rs:13:41: 13:43
+-         _3 = [move _4];                  // scope 0 at $DIR/const-promotion-extern-static.rs:13:31: 13:46
+-         _2 = &_3;                        // scope 0 at $DIR/const-promotion-extern-static.rs:13:31: 13:46
 +                                          // + span: $DIR/const-promotion-extern-static.rs:13:31: 13:46
 +                                          // + literal: Const { ty: &[&i32; 1], val: Unevaluated(DefId(0:7 ~ const_promotion_extern_static[317d]::FOO[0]), [], Some(promoted[0])) }
-+         _2 = &(*_6);                     // bb0[3]: scope 0 at $DIR/const-promotion-extern-static.rs:13:31: 13:46
-+         _1 = move _2 as &[&i32] (Pointer(Unsize)); // bb0[4]: scope 0 at $DIR/const-promotion-extern-static.rs:13:31: 13:46
-+         _0 = const core::slice::<impl [&i32]>::as_ptr(move _1) -> [return: bb2, unwind: bb1]; // bb0[5]: scope 0 at $DIR/const-promotion-extern-static.rs:13:31: 13:55
++         _2 = &(*_6);                     // scope 0 at $DIR/const-promotion-extern-static.rs:13:31: 13:46
+          _1 = move _2 as &[&i32] (Pointer(Unsize)); // scope 0 at $DIR/const-promotion-extern-static.rs:13:31: 13:46
+          _0 = const core::slice::<impl [&i32]>::as_ptr(move _1) -> [return: bb2, unwind: bb1]; // scope 0 at $DIR/const-promotion-extern-static.rs:13:31: 13:55
                                            // ty::Const
                                            // + ty: for<'r> fn(&'r [&i32]) -> *const &i32 {core::slice::<impl [&i32]>::as_ptr}
                                            // + val: Value(Scalar(<ZST>))
@@ -47,14 +45,13 @@
       }
   
       bb1 (cleanup): {
-          resume;                          // bb1[0]: scope 0 at $DIR/const-promotion-extern-static.rs:13:1: 13:56
+          resume;                          // scope 0 at $DIR/const-promotion-extern-static.rs:13:1: 13:56
       }
   
       bb2: {
--         StorageDead(_5);                 // bb2[0]: scope 0 at $DIR/const-promotion-extern-static.rs:13:54: 13:55
--         StorageDead(_3);                 // bb2[1]: scope 0 at $DIR/const-promotion-extern-static.rs:13:54: 13:55
--         return;                          // bb2[2]: scope 0 at $DIR/const-promotion-extern-static.rs:13:1: 13:56
-+         return;                          // bb2[0]: scope 0 at $DIR/const-promotion-extern-static.rs:13:1: 13:56
+-         StorageDead(_5);                 // scope 0 at $DIR/const-promotion-extern-static.rs:13:54: 13:55
+-         StorageDead(_3);                 // scope 0 at $DIR/const-promotion-extern-static.rs:13:54: 13:55
+          return;                          // scope 0 at $DIR/const-promotion-extern-static.rs:13:1: 13:56
       }
   }
 - 
diff --git a/src/test/mir-opt/const_allocation/32bit/rustc.main.ConstProp.after.mir b/src/test/mir-opt/const_allocation/32bit/rustc.main.ConstProp.after.mir
index 5249a63a8f2..3883bba42a3 100644
--- a/src/test/mir-opt/const_allocation/32bit/rustc.main.ConstProp.after.mir
+++ b/src/test/mir-opt/const_allocation/32bit/rustc.main.ConstProp.after.mir
@@ -6,26 +6,26 @@ fn main() -> () {
     let mut _2: &&[(std::option::Option<i32>, &[&str])]; // in scope 0 at $DIR/const_allocation.rs:8:5: 8:8
 
     bb0: {
-        StorageLive(_1);                 // bb0[0]: scope 0 at $DIR/const_allocation.rs:8:5: 8:8
-        StorageLive(_2);                 // bb0[1]: scope 0 at $DIR/const_allocation.rs:8:5: 8:8
-        _2 = const {alloc0+0x0: &&[(std::option::Option<i32>, &[&str])]}; // bb0[2]: scope 0 at $DIR/const_allocation.rs:8:5: 8:8
+        StorageLive(_1);                 // scope 0 at $DIR/const_allocation.rs:8:5: 8:8
+        StorageLive(_2);                 // scope 0 at $DIR/const_allocation.rs:8:5: 8:8
+        _2 = const {alloc0+0x0: &&[(std::option::Option<i32>, &[&str])]}; // scope 0 at $DIR/const_allocation.rs:8:5: 8:8
                                          // ty::Const
                                          // + ty: &&[(std::option::Option<i32>, &[&str])]
                                          // + val: Value(Scalar(alloc0+0x0))
                                          // mir::Constant
                                          // + span: $DIR/const_allocation.rs:8:5: 8:8
                                          // + literal: Const { ty: &&[(std::option::Option<i32>, &[&str])], val: Value(Scalar(alloc0+0x0)) }
-        _1 = (*_2);                      // bb0[3]: scope 0 at $DIR/const_allocation.rs:8:5: 8:8
-        StorageDead(_2);                 // bb0[4]: scope 0 at $DIR/const_allocation.rs:8:8: 8:9
-        StorageDead(_1);                 // bb0[5]: scope 0 at $DIR/const_allocation.rs:8:8: 8:9
-        _0 = const ();                   // bb0[6]: scope 0 at $DIR/const_allocation.rs:7:11: 9:2
+        _1 = (*_2);                      // scope 0 at $DIR/const_allocation.rs:8:5: 8:8
+        StorageDead(_2);                 // scope 0 at $DIR/const_allocation.rs:8:8: 8:9
+        StorageDead(_1);                 // scope 0 at $DIR/const_allocation.rs:8:8: 8:9
+        _0 = const ();                   // scope 0 at $DIR/const_allocation.rs:7:11: 9:2
                                          // ty::Const
                                          // + ty: ()
                                          // + val: Value(Scalar(<ZST>))
                                          // mir::Constant
                                          // + span: $DIR/const_allocation.rs:7:11: 9:2
                                          // + literal: Const { ty: (), val: Value(Scalar(<ZST>)) }
-        return;                          // bb0[7]: scope 0 at $DIR/const_allocation.rs:9:2: 9:2
+        return;                          // scope 0 at $DIR/const_allocation.rs:9:2: 9:2
     }
 }
 
diff --git a/src/test/mir-opt/const_allocation/64bit/rustc.main.ConstProp.after.mir b/src/test/mir-opt/const_allocation/64bit/rustc.main.ConstProp.after.mir
index 66a6c10430a..54a6483f469 100644
--- a/src/test/mir-opt/const_allocation/64bit/rustc.main.ConstProp.after.mir
+++ b/src/test/mir-opt/const_allocation/64bit/rustc.main.ConstProp.after.mir
@@ -6,26 +6,26 @@ fn main() -> () {
     let mut _2: &&[(std::option::Option<i32>, &[&str])]; // in scope 0 at $DIR/const_allocation.rs:8:5: 8:8
 
     bb0: {
-        StorageLive(_1);                 // bb0[0]: scope 0 at $DIR/const_allocation.rs:8:5: 8:8
-        StorageLive(_2);                 // bb0[1]: scope 0 at $DIR/const_allocation.rs:8:5: 8:8
-        _2 = const {alloc0+0x0: &&[(std::option::Option<i32>, &[&str])]}; // bb0[2]: scope 0 at $DIR/const_allocation.rs:8:5: 8:8
+        StorageLive(_1);                 // scope 0 at $DIR/const_allocation.rs:8:5: 8:8
+        StorageLive(_2);                 // scope 0 at $DIR/const_allocation.rs:8:5: 8:8
+        _2 = const {alloc0+0x0: &&[(std::option::Option<i32>, &[&str])]}; // scope 0 at $DIR/const_allocation.rs:8:5: 8:8
                                          // ty::Const
                                          // + ty: &&[(std::option::Option<i32>, &[&str])]
                                          // + val: Value(Scalar(alloc0+0x0))
                                          // mir::Constant
                                          // + span: $DIR/const_allocation.rs:8:5: 8:8
                                          // + literal: Const { ty: &&[(std::option::Option<i32>, &[&str])], val: Value(Scalar(alloc0+0x0)) }
-        _1 = (*_2);                      // bb0[3]: scope 0 at $DIR/const_allocation.rs:8:5: 8:8
-        StorageDead(_2);                 // bb0[4]: scope 0 at $DIR/const_allocation.rs:8:8: 8:9
-        StorageDead(_1);                 // bb0[5]: scope 0 at $DIR/const_allocation.rs:8:8: 8:9
-        _0 = const ();                   // bb0[6]: scope 0 at $DIR/const_allocation.rs:7:11: 9:2
+        _1 = (*_2);                      // scope 0 at $DIR/const_allocation.rs:8:5: 8:8
+        StorageDead(_2);                 // scope 0 at $DIR/const_allocation.rs:8:8: 8:9
+        StorageDead(_1);                 // scope 0 at $DIR/const_allocation.rs:8:8: 8:9
+        _0 = const ();                   // scope 0 at $DIR/const_allocation.rs:7:11: 9:2
                                          // ty::Const
                                          // + ty: ()
                                          // + val: Value(Scalar(<ZST>))
                                          // mir::Constant
                                          // + span: $DIR/const_allocation.rs:7:11: 9:2
                                          // + literal: Const { ty: (), val: Value(Scalar(<ZST>)) }
-        return;                          // bb0[7]: scope 0 at $DIR/const_allocation.rs:9:2: 9:2
+        return;                          // scope 0 at $DIR/const_allocation.rs:9:2: 9:2
     }
 }
 
diff --git a/src/test/mir-opt/const_allocation2/32bit/rustc.main.ConstProp.after.mir b/src/test/mir-opt/const_allocation2/32bit/rustc.main.ConstProp.after.mir
index 0db9fdcee81..e11a2090c5a 100644
--- a/src/test/mir-opt/const_allocation2/32bit/rustc.main.ConstProp.after.mir
+++ b/src/test/mir-opt/const_allocation2/32bit/rustc.main.ConstProp.after.mir
@@ -6,26 +6,26 @@ fn main() -> () {
     let mut _2: &&[(std::option::Option<i32>, &[&u8])]; // in scope 0 at $DIR/const_allocation2.rs:5:5: 5:8
 
     bb0: {
-        StorageLive(_1);                 // bb0[0]: scope 0 at $DIR/const_allocation2.rs:5:5: 5:8
-        StorageLive(_2);                 // bb0[1]: scope 0 at $DIR/const_allocation2.rs:5:5: 5:8
-        _2 = const {alloc0+0x0: &&[(std::option::Option<i32>, &[&u8])]}; // bb0[2]: scope 0 at $DIR/const_allocation2.rs:5:5: 5:8
+        StorageLive(_1);                 // scope 0 at $DIR/const_allocation2.rs:5:5: 5:8
+        StorageLive(_2);                 // scope 0 at $DIR/const_allocation2.rs:5:5: 5:8
+        _2 = const {alloc0+0x0: &&[(std::option::Option<i32>, &[&u8])]}; // scope 0 at $DIR/const_allocation2.rs:5:5: 5:8
                                          // ty::Const
                                          // + ty: &&[(std::option::Option<i32>, &[&u8])]
                                          // + val: Value(Scalar(alloc0+0x0))
                                          // mir::Constant
                                          // + span: $DIR/const_allocation2.rs:5:5: 5:8
                                          // + literal: Const { ty: &&[(std::option::Option<i32>, &[&u8])], val: Value(Scalar(alloc0+0x0)) }
-        _1 = (*_2);                      // bb0[3]: scope 0 at $DIR/const_allocation2.rs:5:5: 5:8
-        StorageDead(_2);                 // bb0[4]: scope 0 at $DIR/const_allocation2.rs:5:8: 5:9
-        StorageDead(_1);                 // bb0[5]: scope 0 at $DIR/const_allocation2.rs:5:8: 5:9
-        _0 = const ();                   // bb0[6]: scope 0 at $DIR/const_allocation2.rs:4:11: 6:2
+        _1 = (*_2);                      // scope 0 at $DIR/const_allocation2.rs:5:5: 5:8
+        StorageDead(_2);                 // scope 0 at $DIR/const_allocation2.rs:5:8: 5:9
+        StorageDead(_1);                 // scope 0 at $DIR/const_allocation2.rs:5:8: 5:9
+        _0 = const ();                   // scope 0 at $DIR/const_allocation2.rs:4:11: 6:2
                                          // ty::Const
                                          // + ty: ()
                                          // + val: Value(Scalar(<ZST>))
                                          // mir::Constant
                                          // + span: $DIR/const_allocation2.rs:4:11: 6:2
                                          // + literal: Const { ty: (), val: Value(Scalar(<ZST>)) }
-        return;                          // bb0[7]: scope 0 at $DIR/const_allocation2.rs:6:2: 6:2
+        return;                          // scope 0 at $DIR/const_allocation2.rs:6:2: 6:2
     }
 }
 
diff --git a/src/test/mir-opt/const_allocation2/64bit/rustc.main.ConstProp.after.mir b/src/test/mir-opt/const_allocation2/64bit/rustc.main.ConstProp.after.mir
index 38514fe65b9..a56534a7690 100644
--- a/src/test/mir-opt/const_allocation2/64bit/rustc.main.ConstProp.after.mir
+++ b/src/test/mir-opt/const_allocation2/64bit/rustc.main.ConstProp.after.mir
@@ -6,26 +6,26 @@ fn main() -> () {
     let mut _2: &&[(std::option::Option<i32>, &[&u8])]; // in scope 0 at $DIR/const_allocation2.rs:5:5: 5:8
 
     bb0: {
-        StorageLive(_1);                 // bb0[0]: scope 0 at $DIR/const_allocation2.rs:5:5: 5:8
-        StorageLive(_2);                 // bb0[1]: scope 0 at $DIR/const_allocation2.rs:5:5: 5:8
-        _2 = const {alloc0+0x0: &&[(std::option::Option<i32>, &[&u8])]}; // bb0[2]: scope 0 at $DIR/const_allocation2.rs:5:5: 5:8
+        StorageLive(_1);                 // scope 0 at $DIR/const_allocation2.rs:5:5: 5:8
+        StorageLive(_2);                 // scope 0 at $DIR/const_allocation2.rs:5:5: 5:8
+        _2 = const {alloc0+0x0: &&[(std::option::Option<i32>, &[&u8])]}; // scope 0 at $DIR/const_allocation2.rs:5:5: 5:8
                                          // ty::Const
                                          // + ty: &&[(std::option::Option<i32>, &[&u8])]
                                          // + val: Value(Scalar(alloc0+0x0))
                                          // mir::Constant
                                          // + span: $DIR/const_allocation2.rs:5:5: 5:8
                                          // + literal: Const { ty: &&[(std::option::Option<i32>, &[&u8])], val: Value(Scalar(alloc0+0x0)) }
-        _1 = (*_2);                      // bb0[3]: scope 0 at $DIR/const_allocation2.rs:5:5: 5:8
-        StorageDead(_2);                 // bb0[4]: scope 0 at $DIR/const_allocation2.rs:5:8: 5:9
-        StorageDead(_1);                 // bb0[5]: scope 0 at $DIR/const_allocation2.rs:5:8: 5:9
-        _0 = const ();                   // bb0[6]: scope 0 at $DIR/const_allocation2.rs:4:11: 6:2
+        _1 = (*_2);                      // scope 0 at $DIR/const_allocation2.rs:5:5: 5:8
+        StorageDead(_2);                 // scope 0 at $DIR/const_allocation2.rs:5:8: 5:9
+        StorageDead(_1);                 // scope 0 at $DIR/const_allocation2.rs:5:8: 5:9
+        _0 = const ();                   // scope 0 at $DIR/const_allocation2.rs:4:11: 6:2
                                          // ty::Const
                                          // + ty: ()
                                          // + val: Value(Scalar(<ZST>))
                                          // mir::Constant
                                          // + span: $DIR/const_allocation2.rs:4:11: 6:2
                                          // + literal: Const { ty: (), val: Value(Scalar(<ZST>)) }
-        return;                          // bb0[7]: scope 0 at $DIR/const_allocation2.rs:6:2: 6:2
+        return;                          // scope 0 at $DIR/const_allocation2.rs:6:2: 6:2
     }
 }
 
diff --git a/src/test/mir-opt/const_allocation3/32bit/rustc.main.ConstProp.after.mir b/src/test/mir-opt/const_allocation3/32bit/rustc.main.ConstProp.after.mir
index b7fda5dedbf..e69ff17149b 100644
--- a/src/test/mir-opt/const_allocation3/32bit/rustc.main.ConstProp.after.mir
+++ b/src/test/mir-opt/const_allocation3/32bit/rustc.main.ConstProp.after.mir
@@ -6,26 +6,26 @@ fn main() -> () {
     let mut _2: &&Packed;                // in scope 0 at $DIR/const_allocation3.rs:5:5: 5:8
 
     bb0: {
-        StorageLive(_1);                 // bb0[0]: scope 0 at $DIR/const_allocation3.rs:5:5: 5:8
-        StorageLive(_2);                 // bb0[1]: scope 0 at $DIR/const_allocation3.rs:5:5: 5:8
-        _2 = const {alloc0+0x0: &&Packed}; // bb0[2]: scope 0 at $DIR/const_allocation3.rs:5:5: 5:8
+        StorageLive(_1);                 // scope 0 at $DIR/const_allocation3.rs:5:5: 5:8
+        StorageLive(_2);                 // scope 0 at $DIR/const_allocation3.rs:5:5: 5:8
+        _2 = const {alloc0+0x0: &&Packed}; // scope 0 at $DIR/const_allocation3.rs:5:5: 5:8
                                          // ty::Const
                                          // + ty: &&Packed
                                          // + val: Value(Scalar(alloc0+0x0))
                                          // mir::Constant
                                          // + span: $DIR/const_allocation3.rs:5:5: 5:8
                                          // + literal: Const { ty: &&Packed, val: Value(Scalar(alloc0+0x0)) }
-        _1 = (*_2);                      // bb0[3]: scope 0 at $DIR/const_allocation3.rs:5:5: 5:8
-        StorageDead(_2);                 // bb0[4]: scope 0 at $DIR/const_allocation3.rs:5:8: 5:9
-        StorageDead(_1);                 // bb0[5]: scope 0 at $DIR/const_allocation3.rs:5:8: 5:9
-        _0 = const ();                   // bb0[6]: scope 0 at $DIR/const_allocation3.rs:4:11: 6:2
+        _1 = (*_2);                      // scope 0 at $DIR/const_allocation3.rs:5:5: 5:8
+        StorageDead(_2);                 // scope 0 at $DIR/const_allocation3.rs:5:8: 5:9
+        StorageDead(_1);                 // scope 0 at $DIR/const_allocation3.rs:5:8: 5:9
+        _0 = const ();                   // scope 0 at $DIR/const_allocation3.rs:4:11: 6:2
                                          // ty::Const
                                          // + ty: ()
                                          // + val: Value(Scalar(<ZST>))
                                          // mir::Constant
                                          // + span: $DIR/const_allocation3.rs:4:11: 6:2
                                          // + literal: Const { ty: (), val: Value(Scalar(<ZST>)) }
-        return;                          // bb0[7]: scope 0 at $DIR/const_allocation3.rs:6:2: 6:2
+        return;                          // scope 0 at $DIR/const_allocation3.rs:6:2: 6:2
     }
 }
 
diff --git a/src/test/mir-opt/const_allocation3/64bit/rustc.main.ConstProp.after.mir b/src/test/mir-opt/const_allocation3/64bit/rustc.main.ConstProp.after.mir
index 60caef9585a..ad669b25a79 100644
--- a/src/test/mir-opt/const_allocation3/64bit/rustc.main.ConstProp.after.mir
+++ b/src/test/mir-opt/const_allocation3/64bit/rustc.main.ConstProp.after.mir
@@ -6,26 +6,26 @@ fn main() -> () {
     let mut _2: &&Packed;                // in scope 0 at $DIR/const_allocation3.rs:5:5: 5:8
 
     bb0: {
-        StorageLive(_1);                 // bb0[0]: scope 0 at $DIR/const_allocation3.rs:5:5: 5:8
-        StorageLive(_2);                 // bb0[1]: scope 0 at $DIR/const_allocation3.rs:5:5: 5:8
-        _2 = const {alloc0+0x0: &&Packed}; // bb0[2]: scope 0 at $DIR/const_allocation3.rs:5:5: 5:8
+        StorageLive(_1);                 // scope 0 at $DIR/const_allocation3.rs:5:5: 5:8
+        StorageLive(_2);                 // scope 0 at $DIR/const_allocation3.rs:5:5: 5:8
+        _2 = const {alloc0+0x0: &&Packed}; // scope 0 at $DIR/const_allocation3.rs:5:5: 5:8
                                          // ty::Const
                                          // + ty: &&Packed
                                          // + val: Value(Scalar(alloc0+0x0))
                                          // mir::Constant
                                          // + span: $DIR/const_allocation3.rs:5:5: 5:8
                                          // + literal: Const { ty: &&Packed, val: Value(Scalar(alloc0+0x0)) }
-        _1 = (*_2);                      // bb0[3]: scope 0 at $DIR/const_allocation3.rs:5:5: 5:8
-        StorageDead(_2);                 // bb0[4]: scope 0 at $DIR/const_allocation3.rs:5:8: 5:9
-        StorageDead(_1);                 // bb0[5]: scope 0 at $DIR/const_allocation3.rs:5:8: 5:9
-        _0 = const ();                   // bb0[6]: scope 0 at $DIR/const_allocation3.rs:4:11: 6:2
+        _1 = (*_2);                      // scope 0 at $DIR/const_allocation3.rs:5:5: 5:8
+        StorageDead(_2);                 // scope 0 at $DIR/const_allocation3.rs:5:8: 5:9
+        StorageDead(_1);                 // scope 0 at $DIR/const_allocation3.rs:5:8: 5:9
+        _0 = const ();                   // scope 0 at $DIR/const_allocation3.rs:4:11: 6:2
                                          // ty::Const
                                          // + ty: ()
                                          // + val: Value(Scalar(<ZST>))
                                          // mir::Constant
                                          // + span: $DIR/const_allocation3.rs:4:11: 6:2
                                          // + literal: Const { ty: (), val: Value(Scalar(<ZST>)) }
-        return;                          // bb0[7]: scope 0 at $DIR/const_allocation3.rs:6:2: 6:2
+        return;                          // scope 0 at $DIR/const_allocation3.rs:6:2: 6:2
     }
 }
 
diff --git a/src/test/mir-opt/const_prop/aggregate/rustc.main.ConstProp.diff b/src/test/mir-opt/const_prop/aggregate/rustc.main.ConstProp.diff
index 50e6cfc37ee..f4b6c7db444 100644
--- a/src/test/mir-opt/const_prop/aggregate/rustc.main.ConstProp.diff
+++ b/src/test/mir-opt/const_prop/aggregate/rustc.main.ConstProp.diff
@@ -11,10 +11,10 @@
       }
   
       bb0: {
-          StorageLive(_1);                 // bb0[0]: scope 0 at $DIR/aggregate.rs:5:9: 5:10
-          StorageLive(_2);                 // bb0[1]: scope 0 at $DIR/aggregate.rs:5:13: 5:24
-          StorageLive(_3);                 // bb0[2]: scope 0 at $DIR/aggregate.rs:5:13: 5:22
-          _3 = (const 0i32, const 1i32, const 2i32); // bb0[3]: scope 0 at $DIR/aggregate.rs:5:13: 5:22
+          StorageLive(_1);                 // scope 0 at $DIR/aggregate.rs:5:9: 5:10
+          StorageLive(_2);                 // scope 0 at $DIR/aggregate.rs:5:13: 5:24
+          StorageLive(_3);                 // scope 0 at $DIR/aggregate.rs:5:13: 5:22
+          _3 = (const 0i32, const 1i32, const 2i32); // scope 0 at $DIR/aggregate.rs:5:13: 5:22
                                            // ty::Const
                                            // + ty: i32
                                            // + val: Value(Scalar(0x00000000))
@@ -33,9 +33,9 @@
                                            // mir::Constant
                                            // + span: $DIR/aggregate.rs:5:20: 5:21
                                            // + literal: Const { ty: i32, val: Value(Scalar(0x00000002)) }
--         _2 = (_3.1: i32);                // bb0[4]: scope 0 at $DIR/aggregate.rs:5:13: 5:24
--         _1 = Add(move _2, const 0i32);   // bb0[5]: scope 0 at $DIR/aggregate.rs:5:13: 5:28
-+         _2 = const 1i32;                 // bb0[4]: scope 0 at $DIR/aggregate.rs:5:13: 5:24
+-         _2 = (_3.1: i32);                // scope 0 at $DIR/aggregate.rs:5:13: 5:24
+-         _1 = Add(move _2, const 0i32);   // scope 0 at $DIR/aggregate.rs:5:13: 5:28
++         _2 = const 1i32;                 // scope 0 at $DIR/aggregate.rs:5:13: 5:24
                                            // ty::Const
                                            // + ty: i32
 -                                          // + val: Value(Scalar(0x00000000))
@@ -45,24 +45,24 @@
 -                                          // + literal: Const { ty: i32, val: Value(Scalar(0x00000000)) }
 +                                          // + span: $DIR/aggregate.rs:5:13: 5:24
 +                                          // + literal: Const { ty: i32, val: Value(Scalar(0x00000001)) }
-+         _1 = const 1i32;                 // bb0[5]: scope 0 at $DIR/aggregate.rs:5:13: 5:28
++         _1 = const 1i32;                 // scope 0 at $DIR/aggregate.rs:5:13: 5:28
 +                                          // ty::Const
 +                                          // + ty: i32
 +                                          // + val: Value(Scalar(0x00000001))
 +                                          // mir::Constant
 +                                          // + span: $DIR/aggregate.rs:5:13: 5:28
 +                                          // + literal: Const { ty: i32, val: Value(Scalar(0x00000001)) }
-          StorageDead(_2);                 // bb0[6]: scope 0 at $DIR/aggregate.rs:5:27: 5:28
-          StorageDead(_3);                 // bb0[7]: scope 0 at $DIR/aggregate.rs:5:28: 5:29
-          _0 = const ();                   // bb0[8]: scope 0 at $DIR/aggregate.rs:4:11: 6:2
+          StorageDead(_2);                 // scope 0 at $DIR/aggregate.rs:5:27: 5:28
+          StorageDead(_3);                 // scope 0 at $DIR/aggregate.rs:5:28: 5:29
+          _0 = const ();                   // scope 0 at $DIR/aggregate.rs:4:11: 6:2
                                            // ty::Const
                                            // + ty: ()
                                            // + val: Value(Scalar(<ZST>))
                                            // mir::Constant
                                            // + span: $DIR/aggregate.rs:4:11: 6:2
                                            // + literal: Const { ty: (), val: Value(Scalar(<ZST>)) }
-          StorageDead(_1);                 // bb0[9]: scope 0 at $DIR/aggregate.rs:6:1: 6:2
-          return;                          // bb0[10]: scope 0 at $DIR/aggregate.rs:6:2: 6:2
+          StorageDead(_1);                 // scope 0 at $DIR/aggregate.rs:6:1: 6:2
+          return;                          // scope 0 at $DIR/aggregate.rs:6:2: 6:2
       }
   }
   
diff --git a/src/test/mir-opt/const_prop/array_index/32bit/rustc.main.ConstProp.diff b/src/test/mir-opt/const_prop/array_index/32bit/rustc.main.ConstProp.diff
index 474d50100b0..e24751d39a7 100644
--- a/src/test/mir-opt/const_prop/array_index/32bit/rustc.main.ConstProp.diff
+++ b/src/test/mir-opt/const_prop/array_index/32bit/rustc.main.ConstProp.diff
@@ -13,9 +13,9 @@
       }
   
       bb0: {
-          StorageLive(_1);                 // bb0[0]: scope 0 at $DIR/array_index.rs:5:9: 5:10
-          StorageLive(_2);                 // bb0[1]: scope 0 at $DIR/array_index.rs:5:18: 5:30
-          _2 = [const 0u32, const 1u32, const 2u32, const 3u32]; // bb0[2]: scope 0 at $DIR/array_index.rs:5:18: 5:30
+          StorageLive(_1);                 // scope 0 at $DIR/array_index.rs:5:9: 5:10
+          StorageLive(_2);                 // scope 0 at $DIR/array_index.rs:5:18: 5:30
+          _2 = [const 0u32, const 1u32, const 2u32, const 3u32]; // scope 0 at $DIR/array_index.rs:5:18: 5:30
                                            // ty::Const
                                            // + ty: u32
                                            // + val: Value(Scalar(0x00000000))
@@ -40,31 +40,31 @@
                                            // mir::Constant
                                            // + span: $DIR/array_index.rs:5:28: 5:29
                                            // + literal: Const { ty: u32, val: Value(Scalar(0x00000003)) }
-          StorageLive(_3);                 // bb0[3]: scope 0 at $DIR/array_index.rs:5:31: 5:32
-          _3 = const 2usize;               // bb0[4]: scope 0 at $DIR/array_index.rs:5:31: 5:32
+          StorageLive(_3);                 // scope 0 at $DIR/array_index.rs:5:31: 5:32
+          _3 = const 2usize;               // scope 0 at $DIR/array_index.rs:5:31: 5:32
                                            // ty::Const
                                            // + ty: usize
                                            // + val: Value(Scalar(0x00000002))
                                            // mir::Constant
                                            // + span: $DIR/array_index.rs:5:31: 5:32
                                            // + literal: Const { ty: usize, val: Value(Scalar(0x00000002)) }
-          _4 = const 4usize;               // bb0[5]: scope 0 at $DIR/array_index.rs:5:18: 5:33
+          _4 = const 4usize;               // scope 0 at $DIR/array_index.rs:5:18: 5:33
                                            // ty::Const
                                            // + ty: usize
                                            // + val: Value(Scalar(0x00000004))
                                            // mir::Constant
                                            // + span: $DIR/array_index.rs:5:18: 5:33
                                            // + literal: Const { ty: usize, val: Value(Scalar(0x00000004)) }
--         _5 = Lt(_3, _4);                 // bb0[6]: scope 0 at $DIR/array_index.rs:5:18: 5:33
--         assert(move _5, "index out of bounds: the len is {} but the index is {}", move _4, _3) -> bb1; // bb0[7]: scope 0 at $DIR/array_index.rs:5:18: 5:33
-+         _5 = const true;                 // bb0[6]: scope 0 at $DIR/array_index.rs:5:18: 5:33
+-         _5 = Lt(_3, _4);                 // scope 0 at $DIR/array_index.rs:5:18: 5:33
+-         assert(move _5, "index out of bounds: the len is {} but the index is {}", move _4, _3) -> bb1; // scope 0 at $DIR/array_index.rs:5:18: 5:33
++         _5 = const true;                 // scope 0 at $DIR/array_index.rs:5:18: 5:33
 +                                          // ty::Const
 +                                          // + ty: bool
 +                                          // + val: Value(Scalar(0x01))
 +                                          // mir::Constant
 +                                          // + span: $DIR/array_index.rs:5:18: 5:33
 +                                          // + literal: Const { ty: bool, val: Value(Scalar(0x01)) }
-+         assert(const true, "index out of bounds: the len is {} but the index is {}", move _4, _3) -> bb1; // bb0[7]: scope 0 at $DIR/array_index.rs:5:18: 5:33
++         assert(const true, "index out of bounds: the len is {} but the index is {}", move _4, _3) -> bb1; // scope 0 at $DIR/array_index.rs:5:18: 5:33
 +                                          // ty::Const
 +                                          // + ty: bool
 +                                          // + val: Value(Scalar(0x01))
@@ -74,25 +74,25 @@
       }
   
       bb1: {
--         _1 = _2[_3];                     // bb1[0]: scope 0 at $DIR/array_index.rs:5:18: 5:33
-+         _1 = const 2u32;                 // bb1[0]: scope 0 at $DIR/array_index.rs:5:18: 5:33
+-         _1 = _2[_3];                     // scope 0 at $DIR/array_index.rs:5:18: 5:33
++         _1 = const 2u32;                 // scope 0 at $DIR/array_index.rs:5:18: 5:33
 +                                          // ty::Const
 +                                          // + ty: u32
 +                                          // + val: Value(Scalar(0x00000002))
 +                                          // mir::Constant
 +                                          // + span: $DIR/array_index.rs:5:18: 5:33
 +                                          // + literal: Const { ty: u32, val: Value(Scalar(0x00000002)) }
-          StorageDead(_3);                 // bb1[1]: scope 0 at $DIR/array_index.rs:5:33: 5:34
-          StorageDead(_2);                 // bb1[2]: scope 0 at $DIR/array_index.rs:5:33: 5:34
-          _0 = const ();                   // bb1[3]: scope 0 at $DIR/array_index.rs:4:11: 6:2
+          StorageDead(_3);                 // scope 0 at $DIR/array_index.rs:5:33: 5:34
+          StorageDead(_2);                 // scope 0 at $DIR/array_index.rs:5:33: 5:34
+          _0 = const ();                   // scope 0 at $DIR/array_index.rs:4:11: 6:2
                                            // ty::Const
                                            // + ty: ()
                                            // + val: Value(Scalar(<ZST>))
                                            // mir::Constant
                                            // + span: $DIR/array_index.rs:4:11: 6:2
                                            // + literal: Const { ty: (), val: Value(Scalar(<ZST>)) }
-          StorageDead(_1);                 // bb1[4]: scope 0 at $DIR/array_index.rs:6:1: 6:2
-          return;                          // bb1[5]: scope 0 at $DIR/array_index.rs:6:2: 6:2
+          StorageDead(_1);                 // scope 0 at $DIR/array_index.rs:6:1: 6:2
+          return;                          // scope 0 at $DIR/array_index.rs:6:2: 6:2
       }
   }
   
diff --git a/src/test/mir-opt/const_prop/array_index/64bit/rustc.main.ConstProp.diff b/src/test/mir-opt/const_prop/array_index/64bit/rustc.main.ConstProp.diff
index b3d353bd487..ad9992bb949 100644
--- a/src/test/mir-opt/const_prop/array_index/64bit/rustc.main.ConstProp.diff
+++ b/src/test/mir-opt/const_prop/array_index/64bit/rustc.main.ConstProp.diff
@@ -13,9 +13,9 @@
       }
   
       bb0: {
-          StorageLive(_1);                 // bb0[0]: scope 0 at $DIR/array_index.rs:5:9: 5:10
-          StorageLive(_2);                 // bb0[1]: scope 0 at $DIR/array_index.rs:5:18: 5:30
-          _2 = [const 0u32, const 1u32, const 2u32, const 3u32]; // bb0[2]: scope 0 at $DIR/array_index.rs:5:18: 5:30
+          StorageLive(_1);                 // scope 0 at $DIR/array_index.rs:5:9: 5:10
+          StorageLive(_2);                 // scope 0 at $DIR/array_index.rs:5:18: 5:30
+          _2 = [const 0u32, const 1u32, const 2u32, const 3u32]; // scope 0 at $DIR/array_index.rs:5:18: 5:30
                                            // ty::Const
                                            // + ty: u32
                                            // + val: Value(Scalar(0x00000000))
@@ -40,31 +40,31 @@
                                            // mir::Constant
                                            // + span: $DIR/array_index.rs:5:28: 5:29
                                            // + literal: Const { ty: u32, val: Value(Scalar(0x00000003)) }
-          StorageLive(_3);                 // bb0[3]: scope 0 at $DIR/array_index.rs:5:31: 5:32
-          _3 = const 2usize;               // bb0[4]: scope 0 at $DIR/array_index.rs:5:31: 5:32
+          StorageLive(_3);                 // scope 0 at $DIR/array_index.rs:5:31: 5:32
+          _3 = const 2usize;               // scope 0 at $DIR/array_index.rs:5:31: 5:32
                                            // ty::Const
                                            // + ty: usize
                                            // + val: Value(Scalar(0x0000000000000002))
                                            // mir::Constant
                                            // + span: $DIR/array_index.rs:5:31: 5:32
                                            // + literal: Const { ty: usize, val: Value(Scalar(0x0000000000000002)) }
-          _4 = const 4usize;               // bb0[5]: scope 0 at $DIR/array_index.rs:5:18: 5:33
+          _4 = const 4usize;               // scope 0 at $DIR/array_index.rs:5:18: 5:33
                                            // ty::Const
                                            // + ty: usize
                                            // + val: Value(Scalar(0x0000000000000004))
                                            // mir::Constant
                                            // + span: $DIR/array_index.rs:5:18: 5:33
                                            // + literal: Const { ty: usize, val: Value(Scalar(0x0000000000000004)) }
--         _5 = Lt(_3, _4);                 // bb0[6]: scope 0 at $DIR/array_index.rs:5:18: 5:33
--         assert(move _5, "index out of bounds: the len is {} but the index is {}", move _4, _3) -> bb1; // bb0[7]: scope 0 at $DIR/array_index.rs:5:18: 5:33
-+         _5 = const true;                 // bb0[6]: scope 0 at $DIR/array_index.rs:5:18: 5:33
+-         _5 = Lt(_3, _4);                 // scope 0 at $DIR/array_index.rs:5:18: 5:33
+-         assert(move _5, "index out of bounds: the len is {} but the index is {}", move _4, _3) -> bb1; // scope 0 at $DIR/array_index.rs:5:18: 5:33
++         _5 = const true;                 // scope 0 at $DIR/array_index.rs:5:18: 5:33
 +                                          // ty::Const
 +                                          // + ty: bool
 +                                          // + val: Value(Scalar(0x01))
 +                                          // mir::Constant
 +                                          // + span: $DIR/array_index.rs:5:18: 5:33
 +                                          // + literal: Const { ty: bool, val: Value(Scalar(0x01)) }
-+         assert(const true, "index out of bounds: the len is {} but the index is {}", move _4, _3) -> bb1; // bb0[7]: scope 0 at $DIR/array_index.rs:5:18: 5:33
++         assert(const true, "index out of bounds: the len is {} but the index is {}", move _4, _3) -> bb1; // scope 0 at $DIR/array_index.rs:5:18: 5:33
 +                                          // ty::Const
 +                                          // + ty: bool
 +                                          // + val: Value(Scalar(0x01))
@@ -74,25 +74,25 @@
       }
   
       bb1: {
--         _1 = _2[_3];                     // bb1[0]: scope 0 at $DIR/array_index.rs:5:18: 5:33
-+         _1 = const 2u32;                 // bb1[0]: scope 0 at $DIR/array_index.rs:5:18: 5:33
+-         _1 = _2[_3];                     // scope 0 at $DIR/array_index.rs:5:18: 5:33
++         _1 = const 2u32;                 // scope 0 at $DIR/array_index.rs:5:18: 5:33
 +                                          // ty::Const
 +                                          // + ty: u32
 +                                          // + val: Value(Scalar(0x00000002))
 +                                          // mir::Constant
 +                                          // + span: $DIR/array_index.rs:5:18: 5:33
 +                                          // + literal: Const { ty: u32, val: Value(Scalar(0x00000002)) }
-          StorageDead(_3);                 // bb1[1]: scope 0 at $DIR/array_index.rs:5:33: 5:34
-          StorageDead(_2);                 // bb1[2]: scope 0 at $DIR/array_index.rs:5:33: 5:34
-          _0 = const ();                   // bb1[3]: scope 0 at $DIR/array_index.rs:4:11: 6:2
+          StorageDead(_3);                 // scope 0 at $DIR/array_index.rs:5:33: 5:34
+          StorageDead(_2);                 // scope 0 at $DIR/array_index.rs:5:33: 5:34
+          _0 = const ();                   // scope 0 at $DIR/array_index.rs:4:11: 6:2
                                            // ty::Const
                                            // + ty: ()
                                            // + val: Value(Scalar(<ZST>))
                                            // mir::Constant
                                            // + span: $DIR/array_index.rs:4:11: 6:2
                                            // + literal: Const { ty: (), val: Value(Scalar(<ZST>)) }
-          StorageDead(_1);                 // bb1[4]: scope 0 at $DIR/array_index.rs:6:1: 6:2
-          return;                          // bb1[5]: scope 0 at $DIR/array_index.rs:6:2: 6:2
+          StorageDead(_1);                 // scope 0 at $DIR/array_index.rs:6:1: 6:2
+          return;                          // scope 0 at $DIR/array_index.rs:6:2: 6:2
       }
   }
   
diff --git a/src/test/mir-opt/const_prop/boxes/rustc.main.ConstProp.diff b/src/test/mir-opt/const_prop/boxes/rustc.main.ConstProp.diff
index bf5aff0cf46..16f937f3e7b 100644
--- a/src/test/mir-opt/const_prop/boxes/rustc.main.ConstProp.diff
+++ b/src/test/mir-opt/const_prop/boxes/rustc.main.ConstProp.diff
@@ -12,47 +12,47 @@
       }
   
       bb0: {
-          StorageLive(_1);                 // bb0[0]: scope 0 at $DIR/boxes.rs:12:9: 12:10
-          StorageLive(_2);                 // bb0[1]: scope 0 at $DIR/boxes.rs:12:13: 12:22
-          StorageLive(_3);                 // bb0[2]: scope 0 at $DIR/boxes.rs:12:14: 12:22
-          StorageLive(_4);                 // bb0[3]: scope 0 at $DIR/boxes.rs:12:14: 12:22
-          _4 = Box(i32);                   // bb0[4]: scope 0 at $DIR/boxes.rs:12:14: 12:22
-          (*_4) = const 42i32;             // bb0[5]: scope 0 at $DIR/boxes.rs:12:19: 12:21
+          StorageLive(_1);                 // scope 0 at $DIR/boxes.rs:12:9: 12:10
+          StorageLive(_2);                 // scope 0 at $DIR/boxes.rs:12:13: 12:22
+          StorageLive(_3);                 // scope 0 at $DIR/boxes.rs:12:14: 12:22
+          StorageLive(_4);                 // scope 0 at $DIR/boxes.rs:12:14: 12:22
+          _4 = Box(i32);                   // scope 0 at $DIR/boxes.rs:12:14: 12:22
+          (*_4) = const 42i32;             // scope 0 at $DIR/boxes.rs:12:19: 12:21
                                            // ty::Const
                                            // + ty: i32
                                            // + val: Value(Scalar(0x0000002a))
                                            // mir::Constant
                                            // + span: $DIR/boxes.rs:12:19: 12:21
                                            // + literal: Const { ty: i32, val: Value(Scalar(0x0000002a)) }
-          _3 = move _4;                    // bb0[6]: scope 0 at $DIR/boxes.rs:12:14: 12:22
-          StorageDead(_4);                 // bb0[7]: scope 0 at $DIR/boxes.rs:12:21: 12:22
-          _2 = (*_3);                      // bb0[8]: scope 0 at $DIR/boxes.rs:12:13: 12:22
-          _1 = Add(move _2, const 0i32);   // bb0[9]: scope 0 at $DIR/boxes.rs:12:13: 12:26
+          _3 = move _4;                    // scope 0 at $DIR/boxes.rs:12:14: 12:22
+          StorageDead(_4);                 // scope 0 at $DIR/boxes.rs:12:21: 12:22
+          _2 = (*_3);                      // scope 0 at $DIR/boxes.rs:12:13: 12:22
+          _1 = Add(move _2, const 0i32);   // scope 0 at $DIR/boxes.rs:12:13: 12:26
                                            // ty::Const
                                            // + ty: i32
                                            // + val: Value(Scalar(0x00000000))
                                            // mir::Constant
                                            // + span: $DIR/boxes.rs:12:25: 12:26
                                            // + literal: Const { ty: i32, val: Value(Scalar(0x00000000)) }
-          StorageDead(_2);                 // bb0[10]: scope 0 at $DIR/boxes.rs:12:25: 12:26
-          drop(_3) -> [return: bb2, unwind: bb1]; // bb0[11]: scope 0 at $DIR/boxes.rs:12:26: 12:27
+          StorageDead(_2);                 // scope 0 at $DIR/boxes.rs:12:25: 12:26
+          drop(_3) -> [return: bb2, unwind: bb1]; // scope 0 at $DIR/boxes.rs:12:26: 12:27
       }
   
       bb1 (cleanup): {
-          resume;                          // bb1[0]: scope 0 at $DIR/boxes.rs:11:1: 13:2
+          resume;                          // scope 0 at $DIR/boxes.rs:11:1: 13:2
       }
   
       bb2: {
-          StorageDead(_3);                 // bb2[0]: scope 0 at $DIR/boxes.rs:12:26: 12:27
-          _0 = const ();                   // bb2[1]: scope 0 at $DIR/boxes.rs:11:11: 13:2
+          StorageDead(_3);                 // scope 0 at $DIR/boxes.rs:12:26: 12:27
+          _0 = const ();                   // scope 0 at $DIR/boxes.rs:11:11: 13:2
                                            // ty::Const
                                            // + ty: ()
                                            // + val: Value(Scalar(<ZST>))
                                            // mir::Constant
                                            // + span: $DIR/boxes.rs:11:11: 13:2
                                            // + literal: Const { ty: (), val: Value(Scalar(<ZST>)) }
-          StorageDead(_1);                 // bb2[2]: scope 0 at $DIR/boxes.rs:13:1: 13:2
-          return;                          // bb2[3]: scope 0 at $DIR/boxes.rs:13:2: 13:2
+          StorageDead(_1);                 // scope 0 at $DIR/boxes.rs:13:1: 13:2
+          return;                          // scope 0 at $DIR/boxes.rs:13:2: 13:2
       }
   }
   
diff --git a/src/test/mir-opt/const_prop/cast/rustc.main.ConstProp.diff b/src/test/mir-opt/const_prop/cast/rustc.main.ConstProp.diff
index ca0a309b1b5..58c27c5a20f 100644
--- a/src/test/mir-opt/const_prop/cast/rustc.main.ConstProp.diff
+++ b/src/test/mir-opt/const_prop/cast/rustc.main.ConstProp.diff
@@ -13,17 +13,17 @@
       }
   
       bb0: {
-          StorageLive(_1);                 // bb0[0]: scope 0 at $DIR/cast.rs:4:9: 4:10
--         _1 = const 42u8 as u32 (Misc);   // bb0[1]: scope 0 at $DIR/cast.rs:4:13: 4:24
-+         _1 = const 42u32;                // bb0[1]: scope 0 at $DIR/cast.rs:4:13: 4:24
+          StorageLive(_1);                 // scope 0 at $DIR/cast.rs:4:9: 4:10
+-         _1 = const 42u8 as u32 (Misc);   // scope 0 at $DIR/cast.rs:4:13: 4:24
++         _1 = const 42u32;                // scope 0 at $DIR/cast.rs:4:13: 4:24
                                            // ty::Const
 -                                          // + ty: u8
 -                                          // + val: Value(Scalar(0x2a))
 -                                          // mir::Constant
 -                                          // + span: $DIR/cast.rs:4:13: 4:17
 -                                          // + literal: Const { ty: u8, val: Value(Scalar(0x2a)) }
--         StorageLive(_2);                 // bb0[2]: scope 1 at $DIR/cast.rs:6:9: 6:10
--         _2 = const 42u32 as u8 (Misc);   // bb0[3]: scope 1 at $DIR/cast.rs:6:13: 6:24
+-         StorageLive(_2);                 // scope 1 at $DIR/cast.rs:6:9: 6:10
+-         _2 = const 42u32 as u8 (Misc);   // scope 1 at $DIR/cast.rs:6:13: 6:24
 -                                          // ty::Const
                                            // + ty: u32
                                            // + val: Value(Scalar(0x0000002a))
@@ -31,24 +31,24 @@
 -                                          // + span: $DIR/cast.rs:6:13: 6:18
 +                                          // + span: $DIR/cast.rs:4:13: 4:24
                                            // + literal: Const { ty: u32, val: Value(Scalar(0x0000002a)) }
-+         StorageLive(_2);                 // bb0[2]: scope 1 at $DIR/cast.rs:6:9: 6:10
-+         _2 = const 42u8;                 // bb0[3]: scope 1 at $DIR/cast.rs:6:13: 6:24
++         StorageLive(_2);                 // scope 1 at $DIR/cast.rs:6:9: 6:10
++         _2 = const 42u8;                 // scope 1 at $DIR/cast.rs:6:13: 6:24
 +                                          // ty::Const
 +                                          // + ty: u8
 +                                          // + val: Value(Scalar(0x2a))
 +                                          // mir::Constant
 +                                          // + span: $DIR/cast.rs:6:13: 6:24
 +                                          // + literal: Const { ty: u8, val: Value(Scalar(0x2a)) }
-          _0 = const ();                   // bb0[4]: scope 0 at $DIR/cast.rs:3:11: 7:2
+          _0 = const ();                   // scope 0 at $DIR/cast.rs:3:11: 7:2
                                            // ty::Const
                                            // + ty: ()
                                            // + val: Value(Scalar(<ZST>))
                                            // mir::Constant
                                            // + span: $DIR/cast.rs:3:11: 7:2
                                            // + literal: Const { ty: (), val: Value(Scalar(<ZST>)) }
-          StorageDead(_2);                 // bb0[5]: scope 1 at $DIR/cast.rs:7:1: 7:2
-          StorageDead(_1);                 // bb0[6]: scope 0 at $DIR/cast.rs:7:1: 7:2
-          return;                          // bb0[7]: scope 0 at $DIR/cast.rs:7:2: 7:2
+          StorageDead(_2);                 // scope 1 at $DIR/cast.rs:7:1: 7:2
+          StorageDead(_1);                 // scope 0 at $DIR/cast.rs:7:1: 7:2
+          return;                          // scope 0 at $DIR/cast.rs:7:2: 7:2
       }
   }
   
diff --git a/src/test/mir-opt/const_prop/checked_add/rustc.main.ConstProp.diff b/src/test/mir-opt/const_prop/checked_add/rustc.main.ConstProp.diff
index 762927575f0..92add8bafdc 100644
--- a/src/test/mir-opt/const_prop/checked_add/rustc.main.ConstProp.diff
+++ b/src/test/mir-opt/const_prop/checked_add/rustc.main.ConstProp.diff
@@ -10,9 +10,9 @@
       }
   
       bb0: {
-          StorageLive(_1);                 // bb0[0]: scope 0 at $DIR/checked_add.rs:5:9: 5:10
--         _2 = CheckedAdd(const 1u32, const 1u32); // bb0[1]: scope 0 at $DIR/checked_add.rs:5:18: 5:23
-+         _2 = (const 2u32, const false);  // bb0[1]: scope 0 at $DIR/checked_add.rs:5:18: 5:23
+          StorageLive(_1);                 // scope 0 at $DIR/checked_add.rs:5:9: 5:10
+-         _2 = CheckedAdd(const 1u32, const 1u32); // scope 0 at $DIR/checked_add.rs:5:18: 5:23
++         _2 = (const 2u32, const false);  // scope 0 at $DIR/checked_add.rs:5:18: 5:23
                                            // ty::Const
                                            // + ty: u32
 -                                          // + val: Value(Scalar(0x00000001))
@@ -30,10 +30,10 @@
                                            // mir::Constant
 -                                          // + span: $DIR/checked_add.rs:5:22: 5:23
 -                                          // + literal: Const { ty: u32, val: Value(Scalar(0x00000001)) }
--         assert(!move (_2.1: bool), "attempt to add with overflow") -> bb1; // bb0[2]: scope 0 at $DIR/checked_add.rs:5:18: 5:23
+-         assert(!move (_2.1: bool), "attempt to add with overflow") -> bb1; // scope 0 at $DIR/checked_add.rs:5:18: 5:23
 +                                          // + span: $DIR/checked_add.rs:5:18: 5:23
 +                                          // + literal: Const { ty: bool, val: Value(Scalar(0x00)) }
-+         assert(!const false, "attempt to add with overflow") -> bb1; // bb0[2]: scope 0 at $DIR/checked_add.rs:5:18: 5:23
++         assert(!const false, "attempt to add with overflow") -> bb1; // scope 0 at $DIR/checked_add.rs:5:18: 5:23
 +                                          // ty::Const
 +                                          // + ty: bool
 +                                          // + val: Value(Scalar(0x00))
@@ -43,23 +43,23 @@
       }
   
       bb1: {
--         _1 = move (_2.0: u32);           // bb1[0]: scope 0 at $DIR/checked_add.rs:5:18: 5:23
-+         _1 = const 2u32;                 // bb1[0]: scope 0 at $DIR/checked_add.rs:5:18: 5:23
+-         _1 = move (_2.0: u32);           // scope 0 at $DIR/checked_add.rs:5:18: 5:23
++         _1 = const 2u32;                 // scope 0 at $DIR/checked_add.rs:5:18: 5:23
 +                                          // ty::Const
 +                                          // + ty: u32
 +                                          // + val: Value(Scalar(0x00000002))
 +                                          // mir::Constant
 +                                          // + span: $DIR/checked_add.rs:5:18: 5:23
 +                                          // + literal: Const { ty: u32, val: Value(Scalar(0x00000002)) }
-          _0 = const ();                   // bb1[1]: scope 0 at $DIR/checked_add.rs:4:11: 6:2
+          _0 = const ();                   // scope 0 at $DIR/checked_add.rs:4:11: 6:2
                                            // ty::Const
                                            // + ty: ()
                                            // + val: Value(Scalar(<ZST>))
                                            // mir::Constant
                                            // + span: $DIR/checked_add.rs:4:11: 6:2
                                            // + literal: Const { ty: (), val: Value(Scalar(<ZST>)) }
-          StorageDead(_1);                 // bb1[2]: scope 0 at $DIR/checked_add.rs:6:1: 6:2
-          return;                          // bb1[3]: scope 0 at $DIR/checked_add.rs:6:2: 6:2
+          StorageDead(_1);                 // scope 0 at $DIR/checked_add.rs:6:1: 6:2
+          return;                          // scope 0 at $DIR/checked_add.rs:6:2: 6:2
       }
   }
   
diff --git a/src/test/mir-opt/const_prop/const_prop_fails_gracefully/rustc.main.ConstProp.diff b/src/test/mir-opt/const_prop/const_prop_fails_gracefully/rustc.main.ConstProp.diff
index d3a6105a852..6c5fe7454b4 100644
--- a/src/test/mir-opt/const_prop/const_prop_fails_gracefully/rustc.main.ConstProp.diff
+++ b/src/test/mir-opt/const_prop/const_prop_fails_gracefully/rustc.main.ConstProp.diff
@@ -13,24 +13,24 @@
       }
   
       bb0: {
-          StorageLive(_1);                 // bb0[0]: scope 0 at $DIR/const_prop_fails_gracefully.rs:7:9: 7:10
-          StorageLive(_2);                 // bb0[1]: scope 0 at $DIR/const_prop_fails_gracefully.rs:7:13: 7:30
-          StorageLive(_3);                 // bb0[2]: scope 0 at $DIR/const_prop_fails_gracefully.rs:7:13: 7:16
-          _3 = const main::FOO;            // bb0[3]: scope 0 at $DIR/const_prop_fails_gracefully.rs:7:13: 7:16
+          StorageLive(_1);                 // scope 0 at $DIR/const_prop_fails_gracefully.rs:7:9: 7:10
+          StorageLive(_2);                 // scope 0 at $DIR/const_prop_fails_gracefully.rs:7:13: 7:30
+          StorageLive(_3);                 // scope 0 at $DIR/const_prop_fails_gracefully.rs:7:13: 7:16
+          _3 = const main::FOO;            // scope 0 at $DIR/const_prop_fails_gracefully.rs:7:13: 7:16
                                            // ty::Const
                                            // + ty: &i32
                                            // + val: Unevaluated(DefId(0:5 ~ const_prop_fails_gracefully[317d]::main[0]::FOO[0]), [], None)
                                            // mir::Constant
                                            // + span: $DIR/const_prop_fails_gracefully.rs:7:13: 7:16
                                            // + literal: Const { ty: &i32, val: Unevaluated(DefId(0:5 ~ const_prop_fails_gracefully[317d]::main[0]::FOO[0]), [], None) }
-          _2 = &raw const (*_3);           // bb0[4]: scope 0 at $DIR/const_prop_fails_gracefully.rs:7:13: 7:16
-          _1 = move _2 as usize (Misc);    // bb0[5]: scope 0 at $DIR/const_prop_fails_gracefully.rs:7:13: 7:39
-          StorageDead(_2);                 // bb0[6]: scope 0 at $DIR/const_prop_fails_gracefully.rs:7:38: 7:39
-          StorageDead(_3);                 // bb0[7]: scope 0 at $DIR/const_prop_fails_gracefully.rs:7:39: 7:40
-          StorageLive(_4);                 // bb0[8]: scope 1 at $DIR/const_prop_fails_gracefully.rs:8:5: 8:12
-          StorageLive(_5);                 // bb0[9]: scope 1 at $DIR/const_prop_fails_gracefully.rs:8:10: 8:11
-          _5 = _1;                         // bb0[10]: scope 1 at $DIR/const_prop_fails_gracefully.rs:8:10: 8:11
-          _4 = const read(move _5) -> bb1; // bb0[11]: scope 1 at $DIR/const_prop_fails_gracefully.rs:8:5: 8:12
+          _2 = &raw const (*_3);           // scope 0 at $DIR/const_prop_fails_gracefully.rs:7:13: 7:16
+          _1 = move _2 as usize (Misc);    // scope 0 at $DIR/const_prop_fails_gracefully.rs:7:13: 7:39
+          StorageDead(_2);                 // scope 0 at $DIR/const_prop_fails_gracefully.rs:7:38: 7:39
+          StorageDead(_3);                 // scope 0 at $DIR/const_prop_fails_gracefully.rs:7:39: 7:40
+          StorageLive(_4);                 // scope 1 at $DIR/const_prop_fails_gracefully.rs:8:5: 8:12
+          StorageLive(_5);                 // scope 1 at $DIR/const_prop_fails_gracefully.rs:8:10: 8:11
+          _5 = _1;                         // scope 1 at $DIR/const_prop_fails_gracefully.rs:8:10: 8:11
+          _4 = const read(move _5) -> bb1; // scope 1 at $DIR/const_prop_fails_gracefully.rs:8:5: 8:12
                                            // ty::Const
                                            // + ty: fn(usize) {read}
                                            // + val: Value(Scalar(<ZST>))
@@ -40,17 +40,17 @@
       }
   
       bb1: {
-          StorageDead(_5);                 // bb1[0]: scope 1 at $DIR/const_prop_fails_gracefully.rs:8:11: 8:12
-          StorageDead(_4);                 // bb1[1]: scope 1 at $DIR/const_prop_fails_gracefully.rs:8:12: 8:13
-          _0 = const ();                   // bb1[2]: scope 0 at $DIR/const_prop_fails_gracefully.rs:5:11: 9:2
+          StorageDead(_5);                 // scope 1 at $DIR/const_prop_fails_gracefully.rs:8:11: 8:12
+          StorageDead(_4);                 // scope 1 at $DIR/const_prop_fails_gracefully.rs:8:12: 8:13
+          _0 = const ();                   // scope 0 at $DIR/const_prop_fails_gracefully.rs:5:11: 9:2
                                            // ty::Const
                                            // + ty: ()
                                            // + val: Value(Scalar(<ZST>))
                                            // mir::Constant
                                            // + span: $DIR/const_prop_fails_gracefully.rs:5:11: 9:2
                                            // + literal: Const { ty: (), val: Value(Scalar(<ZST>)) }
-          StorageDead(_1);                 // bb1[3]: scope 0 at $DIR/const_prop_fails_gracefully.rs:9:1: 9:2
-          return;                          // bb1[4]: scope 0 at $DIR/const_prop_fails_gracefully.rs:9:2: 9:2
+          StorageDead(_1);                 // scope 0 at $DIR/const_prop_fails_gracefully.rs:9:1: 9:2
+          return;                          // scope 0 at $DIR/const_prop_fails_gracefully.rs:9:2: 9:2
       }
   }
   
diff --git a/src/test/mir-opt/const_prop/control-flow-simplification/rustc.hello.ConstProp.diff b/src/test/mir-opt/const_prop/control-flow-simplification/rustc.hello.ConstProp.diff
index cbda5e4ef86..07a144942ca 100644
--- a/src/test/mir-opt/const_prop/control-flow-simplification/rustc.hello.ConstProp.diff
+++ b/src/test/mir-opt/const_prop/control-flow-simplification/rustc.hello.ConstProp.diff
@@ -7,9 +7,9 @@
       let mut _2: !;                       // in scope 0 at $SRC_DIR/libstd/macros.rs:LL:COL
   
       bb0: {
-          StorageLive(_1);                 // bb0[0]: scope 0 at $DIR/control-flow-simplification.rs:12:8: 12:21
--         _1 = const <bool as NeedsDrop>::NEEDS; // bb0[1]: scope 0 at $DIR/control-flow-simplification.rs:12:8: 12:21
-+         _1 = const false;                // bb0[1]: scope 0 at $DIR/control-flow-simplification.rs:12:8: 12:21
+          StorageLive(_1);                 // scope 0 at $DIR/control-flow-simplification.rs:12:8: 12:21
+-         _1 = const <bool as NeedsDrop>::NEEDS; // scope 0 at $DIR/control-flow-simplification.rs:12:8: 12:21
++         _1 = const false;                // scope 0 at $DIR/control-flow-simplification.rs:12:8: 12:21
                                            // ty::Const
                                            // + ty: bool
 -                                          // + val: Unevaluated(DefId(0:4 ~ control_flow_simplification[317d]::NeedsDrop[0]::NEEDS[0]), [bool], None)
@@ -17,9 +17,9 @@
                                            // mir::Constant
                                            // + span: $DIR/control-flow-simplification.rs:12:8: 12:21
 -                                          // + literal: Const { ty: bool, val: Unevaluated(DefId(0:4 ~ control_flow_simplification[317d]::NeedsDrop[0]::NEEDS[0]), [bool], None) }
--         switchInt(_1) -> [false: bb1, otherwise: bb2]; // bb0[2]: scope 0 at $DIR/control-flow-simplification.rs:12:5: 14:6
+-         switchInt(_1) -> [false: bb1, otherwise: bb2]; // scope 0 at $DIR/control-flow-simplification.rs:12:5: 14:6
 +                                          // + literal: Const { ty: bool, val: Value(Scalar(0x00)) }
-+         switchInt(const false) -> [false: bb1, otherwise: bb2]; // bb0[2]: scope 0 at $DIR/control-flow-simplification.rs:12:5: 14:6
++         switchInt(const false) -> [false: bb1, otherwise: bb2]; // scope 0 at $DIR/control-flow-simplification.rs:12:5: 14:6
 +                                          // ty::Const
 +                                          // + ty: bool
 +                                          // + val: Value(Scalar(0x00))
@@ -29,20 +29,20 @@
       }
   
       bb1: {
-          _0 = const ();                   // bb1[0]: scope 0 at $DIR/control-flow-simplification.rs:12:5: 14:6
+          _0 = const ();                   // scope 0 at $DIR/control-flow-simplification.rs:12:5: 14:6
                                            // ty::Const
                                            // + ty: ()
                                            // + val: Value(Scalar(<ZST>))
                                            // mir::Constant
                                            // + span: $DIR/control-flow-simplification.rs:12:5: 14:6
                                            // + literal: Const { ty: (), val: Value(Scalar(<ZST>)) }
-          StorageDead(_1);                 // bb1[1]: scope 0 at $DIR/control-flow-simplification.rs:15:1: 15:2
-          return;                          // bb1[2]: scope 0 at $DIR/control-flow-simplification.rs:15:2: 15:2
+          StorageDead(_1);                 // scope 0 at $DIR/control-flow-simplification.rs:15:1: 15:2
+          return;                          // scope 0 at $DIR/control-flow-simplification.rs:15:2: 15:2
       }
   
       bb2: {
-          StorageLive(_2);                 // bb2[0]: scope 0 at $SRC_DIR/libstd/macros.rs:LL:COL
-          const std::rt::begin_panic::<&str>(const "explicit panic"); // bb2[1]: scope 0 at $SRC_DIR/libstd/macros.rs:LL:COL
+          StorageLive(_2);                 // scope 0 at $SRC_DIR/libstd/macros.rs:LL:COL
+          const std::rt::begin_panic::<&str>(const "explicit panic"); // scope 0 at $SRC_DIR/libstd/macros.rs:LL:COL
                                            // ty::Const
                                            // + ty: fn(&str) -> ! {std::rt::begin_panic::<&str>}
                                            // + val: Value(Scalar(<ZST>))
diff --git a/src/test/mir-opt/const_prop/control-flow-simplification/rustc.hello.PreCodegen.before.mir b/src/test/mir-opt/const_prop/control-flow-simplification/rustc.hello.PreCodegen.before.mir
index 73922b56669..3569b9897f9 100644
--- a/src/test/mir-opt/const_prop/control-flow-simplification/rustc.hello.PreCodegen.before.mir
+++ b/src/test/mir-opt/const_prop/control-flow-simplification/rustc.hello.PreCodegen.before.mir
@@ -4,13 +4,13 @@ fn hello() -> () {
     let mut _0: ();                      // return place in scope 0 at $DIR/control-flow-simplification.rs:11:14: 11:14
 
     bb0: {
-        _0 = const ();                   // bb0[0]: scope 0 at $DIR/control-flow-simplification.rs:12:5: 14:6
+        _0 = const ();                   // scope 0 at $DIR/control-flow-simplification.rs:12:5: 14:6
                                          // ty::Const
                                          // + ty: ()
                                          // + val: Value(Scalar(<ZST>))
                                          // mir::Constant
                                          // + span: $DIR/control-flow-simplification.rs:12:5: 14:6
                                          // + literal: Const { ty: (), val: Value(Scalar(<ZST>)) }
-        return;                          // bb0[1]: scope 0 at $DIR/control-flow-simplification.rs:15:2: 15:2
+        return;                          // scope 0 at $DIR/control-flow-simplification.rs:15:2: 15:2
     }
 }
diff --git a/src/test/mir-opt/const_prop/discriminant/32bit/rustc.main.ConstProp.diff b/src/test/mir-opt/const_prop/discriminant/32bit/rustc.main.ConstProp.diff
index 753c64d6c32..9979ea95498 100644
--- a/src/test/mir-opt/const_prop/discriminant/32bit/rustc.main.ConstProp.diff
+++ b/src/test/mir-opt/const_prop/discriminant/32bit/rustc.main.ConstProp.diff
@@ -12,11 +12,11 @@
       }
   
       bb0: {
-          StorageLive(_1);                 // bb0[0]: scope 0 at $DIR/discriminant.rs:6:9: 6:10
-          StorageLive(_2);                 // bb0[1]: scope 0 at $DIR/discriminant.rs:6:13: 6:64
-          StorageLive(_3);                 // bb0[2]: scope 0 at $DIR/discriminant.rs:6:34: 6:44
--         _3 = std::option::Option::<bool>::Some(const true); // bb0[3]: scope 0 at $DIR/discriminant.rs:6:34: 6:44
-+         _3 = const std::option::Option::<bool>::Some(true); // bb0[3]: scope 0 at $DIR/discriminant.rs:6:34: 6:44
+          StorageLive(_1);                 // scope 0 at $DIR/discriminant.rs:6:9: 6:10
+          StorageLive(_2);                 // scope 0 at $DIR/discriminant.rs:6:13: 6:64
+          StorageLive(_3);                 // scope 0 at $DIR/discriminant.rs:6:34: 6:44
+-         _3 = std::option::Option::<bool>::Some(const true); // scope 0 at $DIR/discriminant.rs:6:34: 6:44
++         _3 = const std::option::Option::<bool>::Some(true); // scope 0 at $DIR/discriminant.rs:6:34: 6:44
                                            // ty::Const
 -                                          // + ty: bool
 +                                          // + ty: std::option::Option<bool>
@@ -24,18 +24,18 @@
                                            // mir::Constant
 -                                          // + span: $DIR/discriminant.rs:6:39: 6:43
 -                                          // + literal: Const { ty: bool, val: Value(Scalar(0x01)) }
--         _4 = discriminant(_3);           // bb0[4]: scope 0 at $DIR/discriminant.rs:6:21: 6:31
--         switchInt(move _4) -> [1isize: bb2, otherwise: bb1]; // bb0[5]: scope 0 at $DIR/discriminant.rs:6:21: 6:31
+-         _4 = discriminant(_3);           // scope 0 at $DIR/discriminant.rs:6:21: 6:31
+-         switchInt(move _4) -> [1isize: bb2, otherwise: bb1]; // scope 0 at $DIR/discriminant.rs:6:21: 6:31
 +                                          // + span: $DIR/discriminant.rs:6:34: 6:44
 +                                          // + literal: Const { ty: std::option::Option<bool>, val: Value(Scalar(0x01)) }
-+         _4 = const 1isize;               // bb0[4]: scope 0 at $DIR/discriminant.rs:6:21: 6:31
++         _4 = const 1isize;               // scope 0 at $DIR/discriminant.rs:6:21: 6:31
 +                                          // ty::Const
 +                                          // + ty: isize
 +                                          // + val: Value(Scalar(0x00000001))
 +                                          // mir::Constant
 +                                          // + span: $DIR/discriminant.rs:6:21: 6:31
 +                                          // + literal: Const { ty: isize, val: Value(Scalar(0x00000001)) }
-+         switchInt(const 1isize) -> [1isize: bb2, otherwise: bb1]; // bb0[5]: scope 0 at $DIR/discriminant.rs:6:21: 6:31
++         switchInt(const 1isize) -> [1isize: bb2, otherwise: bb1]; // scope 0 at $DIR/discriminant.rs:6:21: 6:31
 +                                          // ty::Const
 +                                          // + ty: isize
 +                                          // + val: Value(Scalar(0x00000001))
@@ -45,19 +45,19 @@
       }
   
       bb1: {
-          _2 = const 10i32;                // bb1[0]: scope 0 at $DIR/discriminant.rs:6:59: 6:61
+          _2 = const 10i32;                // scope 0 at $DIR/discriminant.rs:6:59: 6:61
                                            // ty::Const
                                            // + ty: i32
                                            // + val: Value(Scalar(0x0000000a))
                                            // mir::Constant
                                            // + span: $DIR/discriminant.rs:6:59: 6:61
                                            // + literal: Const { ty: i32, val: Value(Scalar(0x0000000a)) }
-          goto -> bb4;                     // bb1[1]: scope 0 at $DIR/discriminant.rs:6:13: 6:64
+          goto -> bb4;                     // scope 0 at $DIR/discriminant.rs:6:13: 6:64
       }
   
       bb2: {
--         switchInt(((_3 as Some).0: bool)) -> [false: bb1, otherwise: bb3]; // bb2[0]: scope 0 at $DIR/discriminant.rs:6:26: 6:30
-+         switchInt(const true) -> [false: bb1, otherwise: bb3]; // bb2[0]: scope 0 at $DIR/discriminant.rs:6:26: 6:30
+-         switchInt(((_3 as Some).0: bool)) -> [false: bb1, otherwise: bb3]; // scope 0 at $DIR/discriminant.rs:6:26: 6:30
++         switchInt(const true) -> [false: bb1, otherwise: bb3]; // scope 0 at $DIR/discriminant.rs:6:26: 6:30
 +                                          // ty::Const
 +                                          // + ty: bool
 +                                          // + val: Value(Scalar(0x01))
@@ -67,35 +67,35 @@
       }
   
       bb3: {
-          _2 = const 42i32;                // bb3[0]: scope 0 at $DIR/discriminant.rs:6:47: 6:49
+          _2 = const 42i32;                // scope 0 at $DIR/discriminant.rs:6:47: 6:49
                                            // ty::Const
                                            // + ty: i32
                                            // + val: Value(Scalar(0x0000002a))
                                            // mir::Constant
                                            // + span: $DIR/discriminant.rs:6:47: 6:49
                                            // + literal: Const { ty: i32, val: Value(Scalar(0x0000002a)) }
-          goto -> bb4;                     // bb3[1]: scope 0 at $DIR/discriminant.rs:6:13: 6:64
+          goto -> bb4;                     // scope 0 at $DIR/discriminant.rs:6:13: 6:64
       }
   
       bb4: {
-          _1 = Add(move _2, const 0i32);   // bb4[0]: scope 0 at $DIR/discriminant.rs:6:13: 6:68
+          _1 = Add(move _2, const 0i32);   // scope 0 at $DIR/discriminant.rs:6:13: 6:68
                                            // ty::Const
                                            // + ty: i32
                                            // + val: Value(Scalar(0x00000000))
                                            // mir::Constant
                                            // + span: $DIR/discriminant.rs:6:67: 6:68
                                            // + literal: Const { ty: i32, val: Value(Scalar(0x00000000)) }
-          StorageDead(_2);                 // bb4[1]: scope 0 at $DIR/discriminant.rs:6:67: 6:68
-          StorageDead(_3);                 // bb4[2]: scope 0 at $DIR/discriminant.rs:6:68: 6:69
-          _0 = const ();                   // bb4[3]: scope 0 at $DIR/discriminant.rs:5:11: 7:2
+          StorageDead(_2);                 // scope 0 at $DIR/discriminant.rs:6:67: 6:68
+          StorageDead(_3);                 // scope 0 at $DIR/discriminant.rs:6:68: 6:69
+          _0 = const ();                   // scope 0 at $DIR/discriminant.rs:5:11: 7:2
                                            // ty::Const
                                            // + ty: ()
                                            // + val: Value(Scalar(<ZST>))
                                            // mir::Constant
                                            // + span: $DIR/discriminant.rs:5:11: 7:2
                                            // + literal: Const { ty: (), val: Value(Scalar(<ZST>)) }
-          StorageDead(_1);                 // bb4[4]: scope 0 at $DIR/discriminant.rs:7:1: 7:2
-          return;                          // bb4[5]: scope 0 at $DIR/discriminant.rs:7:2: 7:2
+          StorageDead(_1);                 // scope 0 at $DIR/discriminant.rs:7:1: 7:2
+          return;                          // scope 0 at $DIR/discriminant.rs:7:2: 7:2
       }
   }
   
diff --git a/src/test/mir-opt/const_prop/discriminant/64bit/rustc.main.ConstProp.diff b/src/test/mir-opt/const_prop/discriminant/64bit/rustc.main.ConstProp.diff
index 1d8e945f87a..ec0341e3de2 100644
--- a/src/test/mir-opt/const_prop/discriminant/64bit/rustc.main.ConstProp.diff
+++ b/src/test/mir-opt/const_prop/discriminant/64bit/rustc.main.ConstProp.diff
@@ -12,11 +12,11 @@
       }
   
       bb0: {
-          StorageLive(_1);                 // bb0[0]: scope 0 at $DIR/discriminant.rs:6:9: 6:10
-          StorageLive(_2);                 // bb0[1]: scope 0 at $DIR/discriminant.rs:6:13: 6:64
-          StorageLive(_3);                 // bb0[2]: scope 0 at $DIR/discriminant.rs:6:34: 6:44
--         _3 = std::option::Option::<bool>::Some(const true); // bb0[3]: scope 0 at $DIR/discriminant.rs:6:34: 6:44
-+         _3 = const std::option::Option::<bool>::Some(true); // bb0[3]: scope 0 at $DIR/discriminant.rs:6:34: 6:44
+          StorageLive(_1);                 // scope 0 at $DIR/discriminant.rs:6:9: 6:10
+          StorageLive(_2);                 // scope 0 at $DIR/discriminant.rs:6:13: 6:64
+          StorageLive(_3);                 // scope 0 at $DIR/discriminant.rs:6:34: 6:44
+-         _3 = std::option::Option::<bool>::Some(const true); // scope 0 at $DIR/discriminant.rs:6:34: 6:44
++         _3 = const std::option::Option::<bool>::Some(true); // scope 0 at $DIR/discriminant.rs:6:34: 6:44
                                            // ty::Const
 -                                          // + ty: bool
 +                                          // + ty: std::option::Option<bool>
@@ -24,18 +24,18 @@
                                            // mir::Constant
 -                                          // + span: $DIR/discriminant.rs:6:39: 6:43
 -                                          // + literal: Const { ty: bool, val: Value(Scalar(0x01)) }
--         _4 = discriminant(_3);           // bb0[4]: scope 0 at $DIR/discriminant.rs:6:21: 6:31
--         switchInt(move _4) -> [1isize: bb2, otherwise: bb1]; // bb0[5]: scope 0 at $DIR/discriminant.rs:6:21: 6:31
+-         _4 = discriminant(_3);           // scope 0 at $DIR/discriminant.rs:6:21: 6:31
+-         switchInt(move _4) -> [1isize: bb2, otherwise: bb1]; // scope 0 at $DIR/discriminant.rs:6:21: 6:31
 +                                          // + span: $DIR/discriminant.rs:6:34: 6:44
 +                                          // + literal: Const { ty: std::option::Option<bool>, val: Value(Scalar(0x01)) }
-+         _4 = const 1isize;               // bb0[4]: scope 0 at $DIR/discriminant.rs:6:21: 6:31
++         _4 = const 1isize;               // scope 0 at $DIR/discriminant.rs:6:21: 6:31
 +                                          // ty::Const
 +                                          // + ty: isize
 +                                          // + val: Value(Scalar(0x0000000000000001))
 +                                          // mir::Constant
 +                                          // + span: $DIR/discriminant.rs:6:21: 6:31
 +                                          // + literal: Const { ty: isize, val: Value(Scalar(0x0000000000000001)) }
-+         switchInt(const 1isize) -> [1isize: bb2, otherwise: bb1]; // bb0[5]: scope 0 at $DIR/discriminant.rs:6:21: 6:31
++         switchInt(const 1isize) -> [1isize: bb2, otherwise: bb1]; // scope 0 at $DIR/discriminant.rs:6:21: 6:31
 +                                          // ty::Const
 +                                          // + ty: isize
 +                                          // + val: Value(Scalar(0x0000000000000001))
@@ -45,19 +45,19 @@
       }
   
       bb1: {
-          _2 = const 10i32;                // bb1[0]: scope 0 at $DIR/discriminant.rs:6:59: 6:61
+          _2 = const 10i32;                // scope 0 at $DIR/discriminant.rs:6:59: 6:61
                                            // ty::Const
                                            // + ty: i32
                                            // + val: Value(Scalar(0x0000000a))
                                            // mir::Constant
                                            // + span: $DIR/discriminant.rs:6:59: 6:61
                                            // + literal: Const { ty: i32, val: Value(Scalar(0x0000000a)) }
-          goto -> bb4;                     // bb1[1]: scope 0 at $DIR/discriminant.rs:6:13: 6:64
+          goto -> bb4;                     // scope 0 at $DIR/discriminant.rs:6:13: 6:64
       }
   
       bb2: {
--         switchInt(((_3 as Some).0: bool)) -> [false: bb1, otherwise: bb3]; // bb2[0]: scope 0 at $DIR/discriminant.rs:6:26: 6:30
-+         switchInt(const true) -> [false: bb1, otherwise: bb3]; // bb2[0]: scope 0 at $DIR/discriminant.rs:6:26: 6:30
+-         switchInt(((_3 as Some).0: bool)) -> [false: bb1, otherwise: bb3]; // scope 0 at $DIR/discriminant.rs:6:26: 6:30
++         switchInt(const true) -> [false: bb1, otherwise: bb3]; // scope 0 at $DIR/discriminant.rs:6:26: 6:30
 +                                          // ty::Const
 +                                          // + ty: bool
 +                                          // + val: Value(Scalar(0x01))
@@ -67,35 +67,35 @@
       }
   
       bb3: {
-          _2 = const 42i32;                // bb3[0]: scope 0 at $DIR/discriminant.rs:6:47: 6:49
+          _2 = const 42i32;                // scope 0 at $DIR/discriminant.rs:6:47: 6:49
                                            // ty::Const
                                            // + ty: i32
                                            // + val: Value(Scalar(0x0000002a))
                                            // mir::Constant
                                            // + span: $DIR/discriminant.rs:6:47: 6:49
                                            // + literal: Const { ty: i32, val: Value(Scalar(0x0000002a)) }
-          goto -> bb4;                     // bb3[1]: scope 0 at $DIR/discriminant.rs:6:13: 6:64
+          goto -> bb4;                     // scope 0 at $DIR/discriminant.rs:6:13: 6:64
       }
   
       bb4: {
-          _1 = Add(move _2, const 0i32);   // bb4[0]: scope 0 at $DIR/discriminant.rs:6:13: 6:68
+          _1 = Add(move _2, const 0i32);   // scope 0 at $DIR/discriminant.rs:6:13: 6:68
                                            // ty::Const
                                            // + ty: i32
                                            // + val: Value(Scalar(0x00000000))
                                            // mir::Constant
                                            // + span: $DIR/discriminant.rs:6:67: 6:68
                                            // + literal: Const { ty: i32, val: Value(Scalar(0x00000000)) }
-          StorageDead(_2);                 // bb4[1]: scope 0 at $DIR/discriminant.rs:6:67: 6:68
-          StorageDead(_3);                 // bb4[2]: scope 0 at $DIR/discriminant.rs:6:68: 6:69
-          _0 = const ();                   // bb4[3]: scope 0 at $DIR/discriminant.rs:5:11: 7:2
+          StorageDead(_2);                 // scope 0 at $DIR/discriminant.rs:6:67: 6:68
+          StorageDead(_3);                 // scope 0 at $DIR/discriminant.rs:6:68: 6:69
+          _0 = const ();                   // scope 0 at $DIR/discriminant.rs:5:11: 7:2
                                            // ty::Const
                                            // + ty: ()
                                            // + val: Value(Scalar(<ZST>))
                                            // mir::Constant
                                            // + span: $DIR/discriminant.rs:5:11: 7:2
                                            // + literal: Const { ty: (), val: Value(Scalar(<ZST>)) }
-          StorageDead(_1);                 // bb4[4]: scope 0 at $DIR/discriminant.rs:7:1: 7:2
-          return;                          // bb4[5]: scope 0 at $DIR/discriminant.rs:7:2: 7:2
+          StorageDead(_1);                 // scope 0 at $DIR/discriminant.rs:7:1: 7:2
+          return;                          // scope 0 at $DIR/discriminant.rs:7:2: 7:2
       }
   }
   
diff --git a/src/test/mir-opt/const_prop/indirect/rustc.main.ConstProp.diff b/src/test/mir-opt/const_prop/indirect/rustc.main.ConstProp.diff
index 4c80d0d1278..941cde9172a 100644
--- a/src/test/mir-opt/const_prop/indirect/rustc.main.ConstProp.diff
+++ b/src/test/mir-opt/const_prop/indirect/rustc.main.ConstProp.diff
@@ -11,10 +11,10 @@
       }
   
       bb0: {
-          StorageLive(_1);                 // bb0[0]: scope 0 at $DIR/indirect.rs:5:9: 5:10
-          StorageLive(_2);                 // bb0[1]: scope 0 at $DIR/indirect.rs:5:13: 5:25
--         _2 = const 2u32 as u8 (Misc);    // bb0[2]: scope 0 at $DIR/indirect.rs:5:13: 5:25
-+         _2 = const 2u8;                  // bb0[2]: scope 0 at $DIR/indirect.rs:5:13: 5:25
+          StorageLive(_1);                 // scope 0 at $DIR/indirect.rs:5:9: 5:10
+          StorageLive(_2);                 // scope 0 at $DIR/indirect.rs:5:13: 5:25
+-         _2 = const 2u32 as u8 (Misc);    // scope 0 at $DIR/indirect.rs:5:13: 5:25
++         _2 = const 2u8;                  // scope 0 at $DIR/indirect.rs:5:13: 5:25
                                            // ty::Const
 -                                          // + ty: u32
 -                                          // + val: Value(Scalar(0x00000002))
@@ -23,10 +23,10 @@
                                            // mir::Constant
 -                                          // + span: $DIR/indirect.rs:5:14: 5:18
 -                                          // + literal: Const { ty: u32, val: Value(Scalar(0x00000002)) }
--         _3 = CheckedAdd(move _2, const 1u8); // bb0[3]: scope 0 at $DIR/indirect.rs:5:13: 5:29
+-         _3 = CheckedAdd(move _2, const 1u8); // scope 0 at $DIR/indirect.rs:5:13: 5:29
 +                                          // + span: $DIR/indirect.rs:5:13: 5:25
 +                                          // + literal: Const { ty: u8, val: Value(Scalar(0x02)) }
-+         _3 = (const 3u8, const false);   // bb0[3]: scope 0 at $DIR/indirect.rs:5:13: 5:29
++         _3 = (const 3u8, const false);   // scope 0 at $DIR/indirect.rs:5:13: 5:29
                                            // ty::Const
                                            // + ty: u8
 -                                          // + val: Value(Scalar(0x01))
@@ -34,7 +34,7 @@
                                            // mir::Constant
 -                                          // + span: $DIR/indirect.rs:5:28: 5:29
 -                                          // + literal: Const { ty: u8, val: Value(Scalar(0x01)) }
--         assert(!move (_3.1: bool), "attempt to add with overflow") -> bb1; // bb0[4]: scope 0 at $DIR/indirect.rs:5:13: 5:29
+-         assert(!move (_3.1: bool), "attempt to add with overflow") -> bb1; // scope 0 at $DIR/indirect.rs:5:13: 5:29
 +                                          // + span: $DIR/indirect.rs:5:13: 5:29
 +                                          // + literal: Const { ty: u8, val: Value(Scalar(0x03)) }
 +                                          // ty::Const
@@ -43,7 +43,7 @@
 +                                          // mir::Constant
 +                                          // + span: $DIR/indirect.rs:5:13: 5:29
 +                                          // + literal: Const { ty: bool, val: Value(Scalar(0x00)) }
-+         assert(!const false, "attempt to add with overflow") -> bb1; // bb0[4]: scope 0 at $DIR/indirect.rs:5:13: 5:29
++         assert(!const false, "attempt to add with overflow") -> bb1; // scope 0 at $DIR/indirect.rs:5:13: 5:29
 +                                          // ty::Const
 +                                          // + ty: bool
 +                                          // + val: Value(Scalar(0x00))
@@ -53,24 +53,24 @@
       }
   
       bb1: {
--         _1 = move (_3.0: u8);            // bb1[0]: scope 0 at $DIR/indirect.rs:5:13: 5:29
-+         _1 = const 3u8;                  // bb1[0]: scope 0 at $DIR/indirect.rs:5:13: 5:29
+-         _1 = move (_3.0: u8);            // scope 0 at $DIR/indirect.rs:5:13: 5:29
++         _1 = const 3u8;                  // scope 0 at $DIR/indirect.rs:5:13: 5:29
 +                                          // ty::Const
 +                                          // + ty: u8
 +                                          // + val: Value(Scalar(0x03))
 +                                          // mir::Constant
 +                                          // + span: $DIR/indirect.rs:5:13: 5:29
 +                                          // + literal: Const { ty: u8, val: Value(Scalar(0x03)) }
-          StorageDead(_2);                 // bb1[1]: scope 0 at $DIR/indirect.rs:5:28: 5:29
-          _0 = const ();                   // bb1[2]: scope 0 at $DIR/indirect.rs:4:11: 6:2
+          StorageDead(_2);                 // scope 0 at $DIR/indirect.rs:5:28: 5:29
+          _0 = const ();                   // scope 0 at $DIR/indirect.rs:4:11: 6:2
                                            // ty::Const
                                            // + ty: ()
                                            // + val: Value(Scalar(<ZST>))
                                            // mir::Constant
                                            // + span: $DIR/indirect.rs:4:11: 6:2
                                            // + literal: Const { ty: (), val: Value(Scalar(<ZST>)) }
-          StorageDead(_1);                 // bb1[3]: scope 0 at $DIR/indirect.rs:6:1: 6:2
-          return;                          // bb1[4]: scope 0 at $DIR/indirect.rs:6:2: 6:2
+          StorageDead(_1);                 // scope 0 at $DIR/indirect.rs:6:1: 6:2
+          return;                          // scope 0 at $DIR/indirect.rs:6:2: 6:2
       }
   }
   
diff --git a/src/test/mir-opt/const_prop/issue-66971/rustc.main.ConstProp.diff b/src/test/mir-opt/const_prop/issue-66971/rustc.main.ConstProp.diff
index 76c6759f700..c26494bdc10 100644
--- a/src/test/mir-opt/const_prop/issue-66971/rustc.main.ConstProp.diff
+++ b/src/test/mir-opt/const_prop/issue-66971/rustc.main.ConstProp.diff
@@ -8,18 +8,18 @@
       let mut _3: ();                      // in scope 0 at $DIR/issue-66971.rs:16:13: 16:15
   
       bb0: {
-          StorageLive(_1);                 // bb0[0]: scope 0 at $DIR/issue-66971.rs:16:5: 16:23
-          StorageLive(_2);                 // bb0[1]: scope 0 at $DIR/issue-66971.rs:16:12: 16:22
-          StorageLive(_3);                 // bb0[2]: scope 0 at $DIR/issue-66971.rs:16:13: 16:15
--         _3 = ();                         // bb0[3]: scope 0 at $DIR/issue-66971.rs:16:13: 16:15
-+         _3 = const ();                   // bb0[3]: scope 0 at $DIR/issue-66971.rs:16:13: 16:15
+          StorageLive(_1);                 // scope 0 at $DIR/issue-66971.rs:16:5: 16:23
+          StorageLive(_2);                 // scope 0 at $DIR/issue-66971.rs:16:12: 16:22
+          StorageLive(_3);                 // scope 0 at $DIR/issue-66971.rs:16:13: 16:15
+-         _3 = ();                         // scope 0 at $DIR/issue-66971.rs:16:13: 16:15
++         _3 = const ();                   // scope 0 at $DIR/issue-66971.rs:16:13: 16:15
 +                                          // ty::Const
 +                                          // + ty: ()
 +                                          // + val: Value(Scalar(<ZST>))
 +                                          // mir::Constant
 +                                          // + span: $DIR/issue-66971.rs:16:13: 16:15
 +                                          // + literal: Const { ty: (), val: Value(Scalar(<ZST>)) }
-          _2 = (move _3, const 0u8, const 0u8); // bb0[4]: scope 0 at $DIR/issue-66971.rs:16:12: 16:22
+          _2 = (move _3, const 0u8, const 0u8); // scope 0 at $DIR/issue-66971.rs:16:12: 16:22
                                            // ty::Const
                                            // + ty: u8
                                            // + val: Value(Scalar(0x00))
@@ -32,8 +32,8 @@
                                            // mir::Constant
                                            // + span: $DIR/issue-66971.rs:16:20: 16:21
                                            // + literal: Const { ty: u8, val: Value(Scalar(0x00)) }
-          StorageDead(_3);                 // bb0[5]: scope 0 at $DIR/issue-66971.rs:16:21: 16:22
-          _1 = const encode(move _2) -> bb1; // bb0[6]: scope 0 at $DIR/issue-66971.rs:16:5: 16:23
+          StorageDead(_3);                 // scope 0 at $DIR/issue-66971.rs:16:21: 16:22
+          _1 = const encode(move _2) -> bb1; // scope 0 at $DIR/issue-66971.rs:16:5: 16:23
                                            // ty::Const
                                            // + ty: fn(((), u8, u8)) {encode}
                                            // + val: Value(Scalar(<ZST>))
@@ -43,16 +43,16 @@
       }
   
       bb1: {
-          StorageDead(_2);                 // bb1[0]: scope 0 at $DIR/issue-66971.rs:16:22: 16:23
-          StorageDead(_1);                 // bb1[1]: scope 0 at $DIR/issue-66971.rs:16:23: 16:24
-          _0 = const ();                   // bb1[2]: scope 0 at $DIR/issue-66971.rs:15:11: 17:2
+          StorageDead(_2);                 // scope 0 at $DIR/issue-66971.rs:16:22: 16:23
+          StorageDead(_1);                 // scope 0 at $DIR/issue-66971.rs:16:23: 16:24
+          _0 = const ();                   // scope 0 at $DIR/issue-66971.rs:15:11: 17:2
                                            // ty::Const
                                            // + ty: ()
                                            // + val: Value(Scalar(<ZST>))
                                            // mir::Constant
                                            // + span: $DIR/issue-66971.rs:15:11: 17:2
                                            // + literal: Const { ty: (), val: Value(Scalar(<ZST>)) }
-          return;                          // bb1[3]: scope 0 at $DIR/issue-66971.rs:17:2: 17:2
+          return;                          // scope 0 at $DIR/issue-66971.rs:17:2: 17:2
       }
   }
   
diff --git a/src/test/mir-opt/const_prop/issue-67019/rustc.main.ConstProp.diff b/src/test/mir-opt/const_prop/issue-67019/rustc.main.ConstProp.diff
index 05e1a615953..e328febb407 100644
--- a/src/test/mir-opt/const_prop/issue-67019/rustc.main.ConstProp.diff
+++ b/src/test/mir-opt/const_prop/issue-67019/rustc.main.ConstProp.diff
@@ -8,10 +8,10 @@
       let mut _3: (u8, u8);                // in scope 0 at $DIR/issue-67019.rs:11:11: 11:17
   
       bb0: {
-          StorageLive(_1);                 // bb0[0]: scope 0 at $DIR/issue-67019.rs:11:5: 11:20
-          StorageLive(_2);                 // bb0[1]: scope 0 at $DIR/issue-67019.rs:11:10: 11:19
-          StorageLive(_3);                 // bb0[2]: scope 0 at $DIR/issue-67019.rs:11:11: 11:17
-          _3 = (const 1u8, const 2u8);     // bb0[3]: scope 0 at $DIR/issue-67019.rs:11:11: 11:17
+          StorageLive(_1);                 // scope 0 at $DIR/issue-67019.rs:11:5: 11:20
+          StorageLive(_2);                 // scope 0 at $DIR/issue-67019.rs:11:10: 11:19
+          StorageLive(_3);                 // scope 0 at $DIR/issue-67019.rs:11:11: 11:17
+          _3 = (const 1u8, const 2u8);     // scope 0 at $DIR/issue-67019.rs:11:11: 11:17
                                            // ty::Const
                                            // + ty: u8
                                            // + val: Value(Scalar(0x01))
@@ -26,9 +26,9 @@
 -                                          // + span: $DIR/issue-67019.rs:11:15: 11:16
 +                                          // + span: $DIR/issue-67019.rs:11:11: 11:17
                                            // + literal: Const { ty: u8, val: Value(Scalar(0x02)) }
-          _2 = (move _3,);                 // bb0[4]: scope 0 at $DIR/issue-67019.rs:11:10: 11:19
-          StorageDead(_3);                 // bb0[5]: scope 0 at $DIR/issue-67019.rs:11:18: 11:19
-          _1 = const test(move _2) -> bb1; // bb0[6]: scope 0 at $DIR/issue-67019.rs:11:5: 11:20
+          _2 = (move _3,);                 // scope 0 at $DIR/issue-67019.rs:11:10: 11:19
+          StorageDead(_3);                 // scope 0 at $DIR/issue-67019.rs:11:18: 11:19
+          _1 = const test(move _2) -> bb1; // scope 0 at $DIR/issue-67019.rs:11:5: 11:20
                                            // ty::Const
                                            // + ty: fn(((u8, u8),)) {test}
                                            // + val: Value(Scalar(<ZST>))
@@ -38,16 +38,16 @@
       }
   
       bb1: {
-          StorageDead(_2);                 // bb1[0]: scope 0 at $DIR/issue-67019.rs:11:19: 11:20
-          StorageDead(_1);                 // bb1[1]: scope 0 at $DIR/issue-67019.rs:11:20: 11:21
-          _0 = const ();                   // bb1[2]: scope 0 at $DIR/issue-67019.rs:10:11: 12:2
+          StorageDead(_2);                 // scope 0 at $DIR/issue-67019.rs:11:19: 11:20
+          StorageDead(_1);                 // scope 0 at $DIR/issue-67019.rs:11:20: 11:21
+          _0 = const ();                   // scope 0 at $DIR/issue-67019.rs:10:11: 12:2
                                            // ty::Const
                                            // + ty: ()
                                            // + val: Value(Scalar(<ZST>))
                                            // mir::Constant
                                            // + span: $DIR/issue-67019.rs:10:11: 12:2
                                            // + literal: Const { ty: (), val: Value(Scalar(<ZST>)) }
-          return;                          // bb1[3]: scope 0 at $DIR/issue-67019.rs:12:2: 12:2
+          return;                          // scope 0 at $DIR/issue-67019.rs:12:2: 12:2
       }
   }
   
diff --git a/src/test/mir-opt/const_prop/optimizes_into_variable/32bit/rustc.main.ConstProp.diff b/src/test/mir-opt/const_prop/optimizes_into_variable/32bit/rustc.main.ConstProp.diff
index 2868365e9ac..9bd9bfa9f27 100644
--- a/src/test/mir-opt/const_prop/optimizes_into_variable/32bit/rustc.main.ConstProp.diff
+++ b/src/test/mir-opt/const_prop/optimizes_into_variable/32bit/rustc.main.ConstProp.diff
@@ -23,9 +23,9 @@
       }
   
       bb0: {
-          StorageLive(_1);                 // bb0[0]: scope 0 at $DIR/optimizes_into_variable.rs:12:9: 12:10
--         _2 = CheckedAdd(const 2i32, const 2i32); // bb0[1]: scope 0 at $DIR/optimizes_into_variable.rs:12:13: 12:18
-+         _2 = (const 4i32, const false);  // bb0[1]: scope 0 at $DIR/optimizes_into_variable.rs:12:13: 12:18
+          StorageLive(_1);                 // scope 0 at $DIR/optimizes_into_variable.rs:12:9: 12:10
+-         _2 = CheckedAdd(const 2i32, const 2i32); // scope 0 at $DIR/optimizes_into_variable.rs:12:13: 12:18
++         _2 = (const 4i32, const false);  // scope 0 at $DIR/optimizes_into_variable.rs:12:13: 12:18
                                            // ty::Const
                                            // + ty: i32
 -                                          // + val: Value(Scalar(0x00000002))
@@ -43,10 +43,10 @@
                                            // mir::Constant
 -                                          // + span: $DIR/optimizes_into_variable.rs:12:17: 12:18
 -                                          // + literal: Const { ty: i32, val: Value(Scalar(0x00000002)) }
--         assert(!move (_2.1: bool), "attempt to add with overflow") -> bb1; // bb0[2]: scope 0 at $DIR/optimizes_into_variable.rs:12:13: 12:18
+-         assert(!move (_2.1: bool), "attempt to add with overflow") -> bb1; // scope 0 at $DIR/optimizes_into_variable.rs:12:13: 12:18
 +                                          // + span: $DIR/optimizes_into_variable.rs:12:13: 12:18
 +                                          // + literal: Const { ty: bool, val: Value(Scalar(0x00)) }
-+         assert(!const false, "attempt to add with overflow") -> bb1; // bb0[2]: scope 0 at $DIR/optimizes_into_variable.rs:12:13: 12:18
++         assert(!const false, "attempt to add with overflow") -> bb1; // scope 0 at $DIR/optimizes_into_variable.rs:12:13: 12:18
 +                                          // ty::Const
 +                                          // + ty: bool
 +                                          // + val: Value(Scalar(0x00))
@@ -56,17 +56,17 @@
       }
   
       bb1: {
--         _1 = move (_2.0: i32);           // bb1[0]: scope 0 at $DIR/optimizes_into_variable.rs:12:13: 12:18
-+         _1 = const 4i32;                 // bb1[0]: scope 0 at $DIR/optimizes_into_variable.rs:12:13: 12:18
+-         _1 = move (_2.0: i32);           // scope 0 at $DIR/optimizes_into_variable.rs:12:13: 12:18
++         _1 = const 4i32;                 // scope 0 at $DIR/optimizes_into_variable.rs:12:13: 12:18
 +                                          // ty::Const
 +                                          // + ty: i32
 +                                          // + val: Value(Scalar(0x00000004))
 +                                          // mir::Constant
 +                                          // + span: $DIR/optimizes_into_variable.rs:12:13: 12:18
 +                                          // + literal: Const { ty: i32, val: Value(Scalar(0x00000004)) }
-          StorageLive(_3);                 // bb1[1]: scope 1 at $DIR/optimizes_into_variable.rs:13:9: 13:10
-          StorageLive(_4);                 // bb1[2]: scope 1 at $DIR/optimizes_into_variable.rs:13:13: 13:31
-          _4 = [const 0i32, const 1i32, const 2i32, const 3i32, const 4i32, const 5i32]; // bb1[3]: scope 1 at $DIR/optimizes_into_variable.rs:13:13: 13:31
+          StorageLive(_3);                 // scope 1 at $DIR/optimizes_into_variable.rs:13:9: 13:10
+          StorageLive(_4);                 // scope 1 at $DIR/optimizes_into_variable.rs:13:13: 13:31
+          _4 = [const 0i32, const 1i32, const 2i32, const 3i32, const 4i32, const 5i32]; // scope 1 at $DIR/optimizes_into_variable.rs:13:13: 13:31
                                            // ty::Const
                                            // + ty: i32
                                            // + val: Value(Scalar(0x00000000))
@@ -103,31 +103,31 @@
                                            // mir::Constant
                                            // + span: $DIR/optimizes_into_variable.rs:13:29: 13:30
                                            // + literal: Const { ty: i32, val: Value(Scalar(0x00000005)) }
-          StorageLive(_5);                 // bb1[4]: scope 1 at $DIR/optimizes_into_variable.rs:13:32: 13:33
-          _5 = const 3usize;               // bb1[5]: scope 1 at $DIR/optimizes_into_variable.rs:13:32: 13:33
+          StorageLive(_5);                 // scope 1 at $DIR/optimizes_into_variable.rs:13:32: 13:33
+          _5 = const 3usize;               // scope 1 at $DIR/optimizes_into_variable.rs:13:32: 13:33
                                            // ty::Const
                                            // + ty: usize
                                            // + val: Value(Scalar(0x00000003))
                                            // mir::Constant
                                            // + span: $DIR/optimizes_into_variable.rs:13:32: 13:33
                                            // + literal: Const { ty: usize, val: Value(Scalar(0x00000003)) }
-          _6 = const 6usize;               // bb1[6]: scope 1 at $DIR/optimizes_into_variable.rs:13:13: 13:34
+          _6 = const 6usize;               // scope 1 at $DIR/optimizes_into_variable.rs:13:13: 13:34
                                            // ty::Const
                                            // + ty: usize
                                            // + val: Value(Scalar(0x00000006))
                                            // mir::Constant
                                            // + span: $DIR/optimizes_into_variable.rs:13:13: 13:34
                                            // + literal: Const { ty: usize, val: Value(Scalar(0x00000006)) }
--         _7 = Lt(_5, _6);                 // bb1[7]: scope 1 at $DIR/optimizes_into_variable.rs:13:13: 13:34
--         assert(move _7, "index out of bounds: the len is {} but the index is {}", move _6, _5) -> bb2; // bb1[8]: scope 1 at $DIR/optimizes_into_variable.rs:13:13: 13:34
-+         _7 = const true;                 // bb1[7]: scope 1 at $DIR/optimizes_into_variable.rs:13:13: 13:34
+-         _7 = Lt(_5, _6);                 // scope 1 at $DIR/optimizes_into_variable.rs:13:13: 13:34
+-         assert(move _7, "index out of bounds: the len is {} but the index is {}", move _6, _5) -> bb2; // scope 1 at $DIR/optimizes_into_variable.rs:13:13: 13:34
++         _7 = const true;                 // scope 1 at $DIR/optimizes_into_variable.rs:13:13: 13:34
 +                                          // ty::Const
 +                                          // + ty: bool
 +                                          // + val: Value(Scalar(0x01))
 +                                          // mir::Constant
 +                                          // + span: $DIR/optimizes_into_variable.rs:13:13: 13:34
 +                                          // + literal: Const { ty: bool, val: Value(Scalar(0x01)) }
-+         assert(const true, "index out of bounds: the len is {} but the index is {}", move _6, _5) -> bb2; // bb1[8]: scope 1 at $DIR/optimizes_into_variable.rs:13:13: 13:34
++         assert(const true, "index out of bounds: the len is {} but the index is {}", move _6, _5) -> bb2; // scope 1 at $DIR/optimizes_into_variable.rs:13:13: 13:34
 +                                          // ty::Const
 +                                          // + ty: bool
 +                                          // + val: Value(Scalar(0x01))
@@ -137,19 +137,19 @@
       }
   
       bb2: {
--         _3 = _4[_5];                     // bb2[0]: scope 1 at $DIR/optimizes_into_variable.rs:13:13: 13:34
-+         _3 = const 3i32;                 // bb2[0]: scope 1 at $DIR/optimizes_into_variable.rs:13:13: 13:34
+-         _3 = _4[_5];                     // scope 1 at $DIR/optimizes_into_variable.rs:13:13: 13:34
++         _3 = const 3i32;                 // scope 1 at $DIR/optimizes_into_variable.rs:13:13: 13:34
 +                                          // ty::Const
 +                                          // + ty: i32
 +                                          // + val: Value(Scalar(0x00000003))
 +                                          // mir::Constant
 +                                          // + span: $DIR/optimizes_into_variable.rs:13:13: 13:34
 +                                          // + literal: Const { ty: i32, val: Value(Scalar(0x00000003)) }
-          StorageDead(_5);                 // bb2[1]: scope 1 at $DIR/optimizes_into_variable.rs:13:34: 13:35
-          StorageDead(_4);                 // bb2[2]: scope 1 at $DIR/optimizes_into_variable.rs:13:34: 13:35
-          StorageLive(_8);                 // bb2[3]: scope 2 at $DIR/optimizes_into_variable.rs:14:9: 14:10
-          StorageLive(_9);                 // bb2[4]: scope 2 at $DIR/optimizes_into_variable.rs:14:13: 14:36
-          _9 = Point { x: const 12u32, y: const 42u32 }; // bb2[5]: scope 2 at $DIR/optimizes_into_variable.rs:14:13: 14:36
+          StorageDead(_5);                 // scope 1 at $DIR/optimizes_into_variable.rs:13:34: 13:35
+          StorageDead(_4);                 // scope 1 at $DIR/optimizes_into_variable.rs:13:34: 13:35
+          StorageLive(_8);                 // scope 2 at $DIR/optimizes_into_variable.rs:14:9: 14:10
+          StorageLive(_9);                 // scope 2 at $DIR/optimizes_into_variable.rs:14:13: 14:36
+          _9 = Point { x: const 12u32, y: const 42u32 }; // scope 2 at $DIR/optimizes_into_variable.rs:14:13: 14:36
                                            // ty::Const
                                            // + ty: u32
                                            // + val: Value(Scalar(0x0000000c))
@@ -162,26 +162,26 @@
                                            // mir::Constant
                                            // + span: $DIR/optimizes_into_variable.rs:14:32: 14:34
                                            // + literal: Const { ty: u32, val: Value(Scalar(0x0000002a)) }
--         _8 = (_9.1: u32);                // bb2[6]: scope 2 at $DIR/optimizes_into_variable.rs:14:13: 14:38
-+         _8 = const 42u32;                // bb2[6]: scope 2 at $DIR/optimizes_into_variable.rs:14:13: 14:38
+-         _8 = (_9.1: u32);                // scope 2 at $DIR/optimizes_into_variable.rs:14:13: 14:38
++         _8 = const 42u32;                // scope 2 at $DIR/optimizes_into_variable.rs:14:13: 14:38
 +                                          // ty::Const
 +                                          // + ty: u32
 +                                          // + val: Value(Scalar(0x0000002a))
 +                                          // mir::Constant
 +                                          // + span: $DIR/optimizes_into_variable.rs:14:13: 14:38
 +                                          // + literal: Const { ty: u32, val: Value(Scalar(0x0000002a)) }
-          StorageDead(_9);                 // bb2[7]: scope 2 at $DIR/optimizes_into_variable.rs:14:38: 14:39
-          _0 = const ();                   // bb2[8]: scope 0 at $DIR/optimizes_into_variable.rs:11:11: 15:2
+          StorageDead(_9);                 // scope 2 at $DIR/optimizes_into_variable.rs:14:38: 14:39
+          _0 = const ();                   // scope 0 at $DIR/optimizes_into_variable.rs:11:11: 15:2
                                            // ty::Const
                                            // + ty: ()
                                            // + val: Value(Scalar(<ZST>))
                                            // mir::Constant
                                            // + span: $DIR/optimizes_into_variable.rs:11:11: 15:2
                                            // + literal: Const { ty: (), val: Value(Scalar(<ZST>)) }
-          StorageDead(_8);                 // bb2[9]: scope 2 at $DIR/optimizes_into_variable.rs:15:1: 15:2
-          StorageDead(_3);                 // bb2[10]: scope 1 at $DIR/optimizes_into_variable.rs:15:1: 15:2
-          StorageDead(_1);                 // bb2[11]: scope 0 at $DIR/optimizes_into_variable.rs:15:1: 15:2
-          return;                          // bb2[12]: scope 0 at $DIR/optimizes_into_variable.rs:15:2: 15:2
+          StorageDead(_8);                 // scope 2 at $DIR/optimizes_into_variable.rs:15:1: 15:2
+          StorageDead(_3);                 // scope 1 at $DIR/optimizes_into_variable.rs:15:1: 15:2
+          StorageDead(_1);                 // scope 0 at $DIR/optimizes_into_variable.rs:15:1: 15:2
+          return;                          // scope 0 at $DIR/optimizes_into_variable.rs:15:2: 15:2
       }
   }
   
diff --git a/src/test/mir-opt/const_prop/optimizes_into_variable/32bit/rustc.main.SimplifyLocals.after.mir b/src/test/mir-opt/const_prop/optimizes_into_variable/32bit/rustc.main.SimplifyLocals.after.mir
index f8aea27df66..8ea9316c7d4 100644
--- a/src/test/mir-opt/const_prop/optimizes_into_variable/32bit/rustc.main.SimplifyLocals.after.mir
+++ b/src/test/mir-opt/const_prop/optimizes_into_variable/32bit/rustc.main.SimplifyLocals.after.mir
@@ -16,40 +16,40 @@ fn main() -> () {
     }
 
     bb0: {
-        StorageLive(_1);                 // bb0[0]: scope 0 at $DIR/optimizes_into_variable.rs:12:9: 12:10
-        _1 = const 4i32;                 // bb0[1]: scope 0 at $DIR/optimizes_into_variable.rs:12:13: 12:18
+        StorageLive(_1);                 // scope 0 at $DIR/optimizes_into_variable.rs:12:9: 12:10
+        _1 = const 4i32;                 // scope 0 at $DIR/optimizes_into_variable.rs:12:13: 12:18
                                          // ty::Const
                                          // + ty: i32
                                          // + val: Value(Scalar(0x00000004))
                                          // mir::Constant
                                          // + span: $DIR/optimizes_into_variable.rs:12:13: 12:18
                                          // + literal: Const { ty: i32, val: Value(Scalar(0x00000004)) }
-        StorageLive(_2);                 // bb0[2]: scope 1 at $DIR/optimizes_into_variable.rs:13:9: 13:10
-        _2 = const 3i32;                 // bb0[3]: scope 1 at $DIR/optimizes_into_variable.rs:13:13: 13:34
+        StorageLive(_2);                 // scope 1 at $DIR/optimizes_into_variable.rs:13:9: 13:10
+        _2 = const 3i32;                 // scope 1 at $DIR/optimizes_into_variable.rs:13:13: 13:34
                                          // ty::Const
                                          // + ty: i32
                                          // + val: Value(Scalar(0x00000003))
                                          // mir::Constant
                                          // + span: $DIR/optimizes_into_variable.rs:13:13: 13:34
                                          // + literal: Const { ty: i32, val: Value(Scalar(0x00000003)) }
-        StorageLive(_3);                 // bb0[4]: scope 2 at $DIR/optimizes_into_variable.rs:14:9: 14:10
-        _3 = const 42u32;                // bb0[5]: scope 2 at $DIR/optimizes_into_variable.rs:14:13: 14:38
+        StorageLive(_3);                 // scope 2 at $DIR/optimizes_into_variable.rs:14:9: 14:10
+        _3 = const 42u32;                // scope 2 at $DIR/optimizes_into_variable.rs:14:13: 14:38
                                          // ty::Const
                                          // + ty: u32
                                          // + val: Value(Scalar(0x0000002a))
                                          // mir::Constant
                                          // + span: $DIR/optimizes_into_variable.rs:14:13: 14:38
                                          // + literal: Const { ty: u32, val: Value(Scalar(0x0000002a)) }
-        _0 = const ();                   // bb0[6]: scope 0 at $DIR/optimizes_into_variable.rs:11:11: 15:2
+        _0 = const ();                   // scope 0 at $DIR/optimizes_into_variable.rs:11:11: 15:2
                                          // ty::Const
                                          // + ty: ()
                                          // + val: Value(Scalar(<ZST>))
                                          // mir::Constant
                                          // + span: $DIR/optimizes_into_variable.rs:11:11: 15:2
                                          // + literal: Const { ty: (), val: Value(Scalar(<ZST>)) }
-        StorageDead(_3);                 // bb0[7]: scope 2 at $DIR/optimizes_into_variable.rs:15:1: 15:2
-        StorageDead(_2);                 // bb0[8]: scope 1 at $DIR/optimizes_into_variable.rs:15:1: 15:2
-        StorageDead(_1);                 // bb0[9]: scope 0 at $DIR/optimizes_into_variable.rs:15:1: 15:2
-        return;                          // bb0[10]: scope 0 at $DIR/optimizes_into_variable.rs:15:2: 15:2
+        StorageDead(_3);                 // scope 2 at $DIR/optimizes_into_variable.rs:15:1: 15:2
+        StorageDead(_2);                 // scope 1 at $DIR/optimizes_into_variable.rs:15:1: 15:2
+        StorageDead(_1);                 // scope 0 at $DIR/optimizes_into_variable.rs:15:1: 15:2
+        return;                          // scope 0 at $DIR/optimizes_into_variable.rs:15:2: 15:2
     }
 }
diff --git a/src/test/mir-opt/const_prop/optimizes_into_variable/64bit/rustc.main.ConstProp.diff b/src/test/mir-opt/const_prop/optimizes_into_variable/64bit/rustc.main.ConstProp.diff
index 0097d9448c8..1da763ec955 100644
--- a/src/test/mir-opt/const_prop/optimizes_into_variable/64bit/rustc.main.ConstProp.diff
+++ b/src/test/mir-opt/const_prop/optimizes_into_variable/64bit/rustc.main.ConstProp.diff
@@ -23,9 +23,9 @@
       }
   
       bb0: {
-          StorageLive(_1);                 // bb0[0]: scope 0 at $DIR/optimizes_into_variable.rs:12:9: 12:10
--         _2 = CheckedAdd(const 2i32, const 2i32); // bb0[1]: scope 0 at $DIR/optimizes_into_variable.rs:12:13: 12:18
-+         _2 = (const 4i32, const false);  // bb0[1]: scope 0 at $DIR/optimizes_into_variable.rs:12:13: 12:18
+          StorageLive(_1);                 // scope 0 at $DIR/optimizes_into_variable.rs:12:9: 12:10
+-         _2 = CheckedAdd(const 2i32, const 2i32); // scope 0 at $DIR/optimizes_into_variable.rs:12:13: 12:18
++         _2 = (const 4i32, const false);  // scope 0 at $DIR/optimizes_into_variable.rs:12:13: 12:18
                                            // ty::Const
                                            // + ty: i32
 -                                          // + val: Value(Scalar(0x00000002))
@@ -43,10 +43,10 @@
                                            // mir::Constant
 -                                          // + span: $DIR/optimizes_into_variable.rs:12:17: 12:18
 -                                          // + literal: Const { ty: i32, val: Value(Scalar(0x00000002)) }
--         assert(!move (_2.1: bool), "attempt to add with overflow") -> bb1; // bb0[2]: scope 0 at $DIR/optimizes_into_variable.rs:12:13: 12:18
+-         assert(!move (_2.1: bool), "attempt to add with overflow") -> bb1; // scope 0 at $DIR/optimizes_into_variable.rs:12:13: 12:18
 +                                          // + span: $DIR/optimizes_into_variable.rs:12:13: 12:18
 +                                          // + literal: Const { ty: bool, val: Value(Scalar(0x00)) }
-+         assert(!const false, "attempt to add with overflow") -> bb1; // bb0[2]: scope 0 at $DIR/optimizes_into_variable.rs:12:13: 12:18
++         assert(!const false, "attempt to add with overflow") -> bb1; // scope 0 at $DIR/optimizes_into_variable.rs:12:13: 12:18
 +                                          // ty::Const
 +                                          // + ty: bool
 +                                          // + val: Value(Scalar(0x00))
@@ -56,17 +56,17 @@
       }
   
       bb1: {
--         _1 = move (_2.0: i32);           // bb1[0]: scope 0 at $DIR/optimizes_into_variable.rs:12:13: 12:18
-+         _1 = const 4i32;                 // bb1[0]: scope 0 at $DIR/optimizes_into_variable.rs:12:13: 12:18
+-         _1 = move (_2.0: i32);           // scope 0 at $DIR/optimizes_into_variable.rs:12:13: 12:18
++         _1 = const 4i32;                 // scope 0 at $DIR/optimizes_into_variable.rs:12:13: 12:18
 +                                          // ty::Const
 +                                          // + ty: i32
 +                                          // + val: Value(Scalar(0x00000004))
 +                                          // mir::Constant
 +                                          // + span: $DIR/optimizes_into_variable.rs:12:13: 12:18
 +                                          // + literal: Const { ty: i32, val: Value(Scalar(0x00000004)) }
-          StorageLive(_3);                 // bb1[1]: scope 1 at $DIR/optimizes_into_variable.rs:13:9: 13:10
-          StorageLive(_4);                 // bb1[2]: scope 1 at $DIR/optimizes_into_variable.rs:13:13: 13:31
-          _4 = [const 0i32, const 1i32, const 2i32, const 3i32, const 4i32, const 5i32]; // bb1[3]: scope 1 at $DIR/optimizes_into_variable.rs:13:13: 13:31
+          StorageLive(_3);                 // scope 1 at $DIR/optimizes_into_variable.rs:13:9: 13:10
+          StorageLive(_4);                 // scope 1 at $DIR/optimizes_into_variable.rs:13:13: 13:31
+          _4 = [const 0i32, const 1i32, const 2i32, const 3i32, const 4i32, const 5i32]; // scope 1 at $DIR/optimizes_into_variable.rs:13:13: 13:31
                                            // ty::Const
                                            // + ty: i32
                                            // + val: Value(Scalar(0x00000000))
@@ -103,31 +103,31 @@
                                            // mir::Constant
                                            // + span: $DIR/optimizes_into_variable.rs:13:29: 13:30
                                            // + literal: Const { ty: i32, val: Value(Scalar(0x00000005)) }
-          StorageLive(_5);                 // bb1[4]: scope 1 at $DIR/optimizes_into_variable.rs:13:32: 13:33
-          _5 = const 3usize;               // bb1[5]: scope 1 at $DIR/optimizes_into_variable.rs:13:32: 13:33
+          StorageLive(_5);                 // scope 1 at $DIR/optimizes_into_variable.rs:13:32: 13:33
+          _5 = const 3usize;               // scope 1 at $DIR/optimizes_into_variable.rs:13:32: 13:33
                                            // ty::Const
                                            // + ty: usize
                                            // + val: Value(Scalar(0x0000000000000003))
                                            // mir::Constant
                                            // + span: $DIR/optimizes_into_variable.rs:13:32: 13:33
                                            // + literal: Const { ty: usize, val: Value(Scalar(0x0000000000000003)) }
-          _6 = const 6usize;               // bb1[6]: scope 1 at $DIR/optimizes_into_variable.rs:13:13: 13:34
+          _6 = const 6usize;               // scope 1 at $DIR/optimizes_into_variable.rs:13:13: 13:34
                                            // ty::Const
                                            // + ty: usize
                                            // + val: Value(Scalar(0x0000000000000006))
                                            // mir::Constant
                                            // + span: $DIR/optimizes_into_variable.rs:13:13: 13:34
                                            // + literal: Const { ty: usize, val: Value(Scalar(0x0000000000000006)) }
--         _7 = Lt(_5, _6);                 // bb1[7]: scope 1 at $DIR/optimizes_into_variable.rs:13:13: 13:34
--         assert(move _7, "index out of bounds: the len is {} but the index is {}", move _6, _5) -> bb2; // bb1[8]: scope 1 at $DIR/optimizes_into_variable.rs:13:13: 13:34
-+         _7 = const true;                 // bb1[7]: scope 1 at $DIR/optimizes_into_variable.rs:13:13: 13:34
+-         _7 = Lt(_5, _6);                 // scope 1 at $DIR/optimizes_into_variable.rs:13:13: 13:34
+-         assert(move _7, "index out of bounds: the len is {} but the index is {}", move _6, _5) -> bb2; // scope 1 at $DIR/optimizes_into_variable.rs:13:13: 13:34
++         _7 = const true;                 // scope 1 at $DIR/optimizes_into_variable.rs:13:13: 13:34
 +                                          // ty::Const
 +                                          // + ty: bool
 +                                          // + val: Value(Scalar(0x01))
 +                                          // mir::Constant
 +                                          // + span: $DIR/optimizes_into_variable.rs:13:13: 13:34
 +                                          // + literal: Const { ty: bool, val: Value(Scalar(0x01)) }
-+         assert(const true, "index out of bounds: the len is {} but the index is {}", move _6, _5) -> bb2; // bb1[8]: scope 1 at $DIR/optimizes_into_variable.rs:13:13: 13:34
++         assert(const true, "index out of bounds: the len is {} but the index is {}", move _6, _5) -> bb2; // scope 1 at $DIR/optimizes_into_variable.rs:13:13: 13:34
 +                                          // ty::Const
 +                                          // + ty: bool
 +                                          // + val: Value(Scalar(0x01))
@@ -137,19 +137,19 @@
       }
   
       bb2: {
--         _3 = _4[_5];                     // bb2[0]: scope 1 at $DIR/optimizes_into_variable.rs:13:13: 13:34
-+         _3 = const 3i32;                 // bb2[0]: scope 1 at $DIR/optimizes_into_variable.rs:13:13: 13:34
+-         _3 = _4[_5];                     // scope 1 at $DIR/optimizes_into_variable.rs:13:13: 13:34
++         _3 = const 3i32;                 // scope 1 at $DIR/optimizes_into_variable.rs:13:13: 13:34
 +                                          // ty::Const
 +                                          // + ty: i32
 +                                          // + val: Value(Scalar(0x00000003))
 +                                          // mir::Constant
 +                                          // + span: $DIR/optimizes_into_variable.rs:13:13: 13:34
 +                                          // + literal: Const { ty: i32, val: Value(Scalar(0x00000003)) }
-          StorageDead(_5);                 // bb2[1]: scope 1 at $DIR/optimizes_into_variable.rs:13:34: 13:35
-          StorageDead(_4);                 // bb2[2]: scope 1 at $DIR/optimizes_into_variable.rs:13:34: 13:35
-          StorageLive(_8);                 // bb2[3]: scope 2 at $DIR/optimizes_into_variable.rs:14:9: 14:10
-          StorageLive(_9);                 // bb2[4]: scope 2 at $DIR/optimizes_into_variable.rs:14:13: 14:36
-          _9 = Point { x: const 12u32, y: const 42u32 }; // bb2[5]: scope 2 at $DIR/optimizes_into_variable.rs:14:13: 14:36
+          StorageDead(_5);                 // scope 1 at $DIR/optimizes_into_variable.rs:13:34: 13:35
+          StorageDead(_4);                 // scope 1 at $DIR/optimizes_into_variable.rs:13:34: 13:35
+          StorageLive(_8);                 // scope 2 at $DIR/optimizes_into_variable.rs:14:9: 14:10
+          StorageLive(_9);                 // scope 2 at $DIR/optimizes_into_variable.rs:14:13: 14:36
+          _9 = Point { x: const 12u32, y: const 42u32 }; // scope 2 at $DIR/optimizes_into_variable.rs:14:13: 14:36
                                            // ty::Const
                                            // + ty: u32
                                            // + val: Value(Scalar(0x0000000c))
@@ -162,26 +162,26 @@
                                            // mir::Constant
                                            // + span: $DIR/optimizes_into_variable.rs:14:32: 14:34
                                            // + literal: Const { ty: u32, val: Value(Scalar(0x0000002a)) }
--         _8 = (_9.1: u32);                // bb2[6]: scope 2 at $DIR/optimizes_into_variable.rs:14:13: 14:38
-+         _8 = const 42u32;                // bb2[6]: scope 2 at $DIR/optimizes_into_variable.rs:14:13: 14:38
+-         _8 = (_9.1: u32);                // scope 2 at $DIR/optimizes_into_variable.rs:14:13: 14:38
++         _8 = const 42u32;                // scope 2 at $DIR/optimizes_into_variable.rs:14:13: 14:38
 +                                          // ty::Const
 +                                          // + ty: u32
 +                                          // + val: Value(Scalar(0x0000002a))
 +                                          // mir::Constant
 +                                          // + span: $DIR/optimizes_into_variable.rs:14:13: 14:38
 +                                          // + literal: Const { ty: u32, val: Value(Scalar(0x0000002a)) }
-          StorageDead(_9);                 // bb2[7]: scope 2 at $DIR/optimizes_into_variable.rs:14:38: 14:39
-          _0 = const ();                   // bb2[8]: scope 0 at $DIR/optimizes_into_variable.rs:11:11: 15:2
+          StorageDead(_9);                 // scope 2 at $DIR/optimizes_into_variable.rs:14:38: 14:39
+          _0 = const ();                   // scope 0 at $DIR/optimizes_into_variable.rs:11:11: 15:2
                                            // ty::Const
                                            // + ty: ()
                                            // + val: Value(Scalar(<ZST>))
                                            // mir::Constant
                                            // + span: $DIR/optimizes_into_variable.rs:11:11: 15:2
                                            // + literal: Const { ty: (), val: Value(Scalar(<ZST>)) }
-          StorageDead(_8);                 // bb2[9]: scope 2 at $DIR/optimizes_into_variable.rs:15:1: 15:2
-          StorageDead(_3);                 // bb2[10]: scope 1 at $DIR/optimizes_into_variable.rs:15:1: 15:2
-          StorageDead(_1);                 // bb2[11]: scope 0 at $DIR/optimizes_into_variable.rs:15:1: 15:2
-          return;                          // bb2[12]: scope 0 at $DIR/optimizes_into_variable.rs:15:2: 15:2
+          StorageDead(_8);                 // scope 2 at $DIR/optimizes_into_variable.rs:15:1: 15:2
+          StorageDead(_3);                 // scope 1 at $DIR/optimizes_into_variable.rs:15:1: 15:2
+          StorageDead(_1);                 // scope 0 at $DIR/optimizes_into_variable.rs:15:1: 15:2
+          return;                          // scope 0 at $DIR/optimizes_into_variable.rs:15:2: 15:2
       }
   }
   
diff --git a/src/test/mir-opt/const_prop/optimizes_into_variable/64bit/rustc.main.SimplifyLocals.after.mir b/src/test/mir-opt/const_prop/optimizes_into_variable/64bit/rustc.main.SimplifyLocals.after.mir
index f8aea27df66..8ea9316c7d4 100644
--- a/src/test/mir-opt/const_prop/optimizes_into_variable/64bit/rustc.main.SimplifyLocals.after.mir
+++ b/src/test/mir-opt/const_prop/optimizes_into_variable/64bit/rustc.main.SimplifyLocals.after.mir
@@ -16,40 +16,40 @@ fn main() -> () {
     }
 
     bb0: {
-        StorageLive(_1);                 // bb0[0]: scope 0 at $DIR/optimizes_into_variable.rs:12:9: 12:10
-        _1 = const 4i32;                 // bb0[1]: scope 0 at $DIR/optimizes_into_variable.rs:12:13: 12:18
+        StorageLive(_1);                 // scope 0 at $DIR/optimizes_into_variable.rs:12:9: 12:10
+        _1 = const 4i32;                 // scope 0 at $DIR/optimizes_into_variable.rs:12:13: 12:18
                                          // ty::Const
                                          // + ty: i32
                                          // + val: Value(Scalar(0x00000004))
                                          // mir::Constant
                                          // + span: $DIR/optimizes_into_variable.rs:12:13: 12:18
                                          // + literal: Const { ty: i32, val: Value(Scalar(0x00000004)) }
-        StorageLive(_2);                 // bb0[2]: scope 1 at $DIR/optimizes_into_variable.rs:13:9: 13:10
-        _2 = const 3i32;                 // bb0[3]: scope 1 at $DIR/optimizes_into_variable.rs:13:13: 13:34
+        StorageLive(_2);                 // scope 1 at $DIR/optimizes_into_variable.rs:13:9: 13:10
+        _2 = const 3i32;                 // scope 1 at $DIR/optimizes_into_variable.rs:13:13: 13:34
                                          // ty::Const
                                          // + ty: i32
                                          // + val: Value(Scalar(0x00000003))
                                          // mir::Constant
                                          // + span: $DIR/optimizes_into_variable.rs:13:13: 13:34
                                          // + literal: Const { ty: i32, val: Value(Scalar(0x00000003)) }
-        StorageLive(_3);                 // bb0[4]: scope 2 at $DIR/optimizes_into_variable.rs:14:9: 14:10
-        _3 = const 42u32;                // bb0[5]: scope 2 at $DIR/optimizes_into_variable.rs:14:13: 14:38
+        StorageLive(_3);                 // scope 2 at $DIR/optimizes_into_variable.rs:14:9: 14:10
+        _3 = const 42u32;                // scope 2 at $DIR/optimizes_into_variable.rs:14:13: 14:38
                                          // ty::Const
                                          // + ty: u32
                                          // + val: Value(Scalar(0x0000002a))
                                          // mir::Constant
                                          // + span: $DIR/optimizes_into_variable.rs:14:13: 14:38
                                          // + literal: Const { ty: u32, val: Value(Scalar(0x0000002a)) }
-        _0 = const ();                   // bb0[6]: scope 0 at $DIR/optimizes_into_variable.rs:11:11: 15:2
+        _0 = const ();                   // scope 0 at $DIR/optimizes_into_variable.rs:11:11: 15:2
                                          // ty::Const
                                          // + ty: ()
                                          // + val: Value(Scalar(<ZST>))
                                          // mir::Constant
                                          // + span: $DIR/optimizes_into_variable.rs:11:11: 15:2
                                          // + literal: Const { ty: (), val: Value(Scalar(<ZST>)) }
-        StorageDead(_3);                 // bb0[7]: scope 2 at $DIR/optimizes_into_variable.rs:15:1: 15:2
-        StorageDead(_2);                 // bb0[8]: scope 1 at $DIR/optimizes_into_variable.rs:15:1: 15:2
-        StorageDead(_1);                 // bb0[9]: scope 0 at $DIR/optimizes_into_variable.rs:15:1: 15:2
-        return;                          // bb0[10]: scope 0 at $DIR/optimizes_into_variable.rs:15:2: 15:2
+        StorageDead(_3);                 // scope 2 at $DIR/optimizes_into_variable.rs:15:1: 15:2
+        StorageDead(_2);                 // scope 1 at $DIR/optimizes_into_variable.rs:15:1: 15:2
+        StorageDead(_1);                 // scope 0 at $DIR/optimizes_into_variable.rs:15:1: 15:2
+        return;                          // scope 0 at $DIR/optimizes_into_variable.rs:15:2: 15:2
     }
 }
diff --git a/src/test/mir-opt/const_prop/read_immutable_static/rustc.main.ConstProp.diff b/src/test/mir-opt/const_prop/read_immutable_static/rustc.main.ConstProp.diff
index 826e3695e32..bbe0d106011 100644
--- a/src/test/mir-opt/const_prop/read_immutable_static/rustc.main.ConstProp.diff
+++ b/src/test/mir-opt/const_prop/read_immutable_static/rustc.main.ConstProp.diff
@@ -13,62 +13,62 @@
       }
   
       bb0: {
-          StorageLive(_1);                 // bb0[0]: scope 0 at $DIR/read_immutable_static.rs:7:9: 7:10
-          StorageLive(_2);                 // bb0[1]: scope 0 at $DIR/read_immutable_static.rs:7:13: 7:16
-          StorageLive(_3);                 // bb0[2]: scope 0 at $DIR/read_immutable_static.rs:7:13: 7:16
-          _3 = const {alloc0+0x0: &u8};    // bb0[3]: scope 0 at $DIR/read_immutable_static.rs:7:13: 7:16
+          StorageLive(_1);                 // scope 0 at $DIR/read_immutable_static.rs:7:9: 7:10
+          StorageLive(_2);                 // scope 0 at $DIR/read_immutable_static.rs:7:13: 7:16
+          StorageLive(_3);                 // scope 0 at $DIR/read_immutable_static.rs:7:13: 7:16
+          _3 = const {alloc0+0x0: &u8};    // scope 0 at $DIR/read_immutable_static.rs:7:13: 7:16
                                            // ty::Const
                                            // + ty: &u8
                                            // + val: Value(Scalar(alloc0+0x0))
                                            // mir::Constant
                                            // + span: $DIR/read_immutable_static.rs:7:13: 7:16
                                            // + literal: Const { ty: &u8, val: Value(Scalar(alloc0+0x0)) }
--         _2 = (*_3);                      // bb0[4]: scope 0 at $DIR/read_immutable_static.rs:7:13: 7:16
-+         _2 = const 2u8;                  // bb0[4]: scope 0 at $DIR/read_immutable_static.rs:7:13: 7:16
+-         _2 = (*_3);                      // scope 0 at $DIR/read_immutable_static.rs:7:13: 7:16
++         _2 = const 2u8;                  // scope 0 at $DIR/read_immutable_static.rs:7:13: 7:16
 +                                          // ty::Const
 +                                          // + ty: u8
 +                                          // + val: Value(Scalar(0x02))
 +                                          // mir::Constant
 +                                          // + span: $DIR/read_immutable_static.rs:7:13: 7:16
 +                                          // + literal: Const { ty: u8, val: Value(Scalar(0x02)) }
-          StorageLive(_4);                 // bb0[5]: scope 0 at $DIR/read_immutable_static.rs:7:19: 7:22
-          StorageLive(_5);                 // bb0[6]: scope 0 at $DIR/read_immutable_static.rs:7:19: 7:22
-          _5 = const {alloc0+0x0: &u8};    // bb0[7]: scope 0 at $DIR/read_immutable_static.rs:7:19: 7:22
+          StorageLive(_4);                 // scope 0 at $DIR/read_immutable_static.rs:7:19: 7:22
+          StorageLive(_5);                 // scope 0 at $DIR/read_immutable_static.rs:7:19: 7:22
+          _5 = const {alloc0+0x0: &u8};    // scope 0 at $DIR/read_immutable_static.rs:7:19: 7:22
                                            // ty::Const
                                            // + ty: &u8
                                            // + val: Value(Scalar(alloc0+0x0))
                                            // mir::Constant
                                            // + span: $DIR/read_immutable_static.rs:7:19: 7:22
                                            // + literal: Const { ty: &u8, val: Value(Scalar(alloc0+0x0)) }
--         _4 = (*_5);                      // bb0[8]: scope 0 at $DIR/read_immutable_static.rs:7:19: 7:22
--         _1 = Add(move _2, move _4);      // bb0[9]: scope 0 at $DIR/read_immutable_static.rs:7:13: 7:22
-+         _4 = const 2u8;                  // bb0[8]: scope 0 at $DIR/read_immutable_static.rs:7:19: 7:22
+-         _4 = (*_5);                      // scope 0 at $DIR/read_immutable_static.rs:7:19: 7:22
+-         _1 = Add(move _2, move _4);      // scope 0 at $DIR/read_immutable_static.rs:7:13: 7:22
++         _4 = const 2u8;                  // scope 0 at $DIR/read_immutable_static.rs:7:19: 7:22
 +                                          // ty::Const
 +                                          // + ty: u8
 +                                          // + val: Value(Scalar(0x02))
 +                                          // mir::Constant
 +                                          // + span: $DIR/read_immutable_static.rs:7:19: 7:22
 +                                          // + literal: Const { ty: u8, val: Value(Scalar(0x02)) }
-+         _1 = const 4u8;                  // bb0[9]: scope 0 at $DIR/read_immutable_static.rs:7:13: 7:22
++         _1 = const 4u8;                  // scope 0 at $DIR/read_immutable_static.rs:7:13: 7:22
 +                                          // ty::Const
 +                                          // + ty: u8
 +                                          // + val: Value(Scalar(0x04))
 +                                          // mir::Constant
 +                                          // + span: $DIR/read_immutable_static.rs:7:13: 7:22
 +                                          // + literal: Const { ty: u8, val: Value(Scalar(0x04)) }
-          StorageDead(_4);                 // bb0[10]: scope 0 at $DIR/read_immutable_static.rs:7:21: 7:22
-          StorageDead(_2);                 // bb0[11]: scope 0 at $DIR/read_immutable_static.rs:7:21: 7:22
-          StorageDead(_5);                 // bb0[12]: scope 0 at $DIR/read_immutable_static.rs:7:22: 7:23
-          StorageDead(_3);                 // bb0[13]: scope 0 at $DIR/read_immutable_static.rs:7:22: 7:23
-          _0 = const ();                   // bb0[14]: scope 0 at $DIR/read_immutable_static.rs:6:11: 8:2
+          StorageDead(_4);                 // scope 0 at $DIR/read_immutable_static.rs:7:21: 7:22
+          StorageDead(_2);                 // scope 0 at $DIR/read_immutable_static.rs:7:21: 7:22
+          StorageDead(_5);                 // scope 0 at $DIR/read_immutable_static.rs:7:22: 7:23
+          StorageDead(_3);                 // scope 0 at $DIR/read_immutable_static.rs:7:22: 7:23
+          _0 = const ();                   // scope 0 at $DIR/read_immutable_static.rs:6:11: 8:2
                                            // ty::Const
                                            // + ty: ()
                                            // + val: Value(Scalar(<ZST>))
                                            // mir::Constant
                                            // + span: $DIR/read_immutable_static.rs:6:11: 8:2
                                            // + literal: Const { ty: (), val: Value(Scalar(<ZST>)) }
-          StorageDead(_1);                 // bb0[15]: scope 0 at $DIR/read_immutable_static.rs:8:1: 8:2
-          return;                          // bb0[16]: scope 0 at $DIR/read_immutable_static.rs:8:2: 8:2
+          StorageDead(_1);                 // scope 0 at $DIR/read_immutable_static.rs:8:1: 8:2
+          return;                          // scope 0 at $DIR/read_immutable_static.rs:8:2: 8:2
       }
   }
   
diff --git a/src/test/mir-opt/const_prop/ref_deref/rustc.main.ConstProp.diff b/src/test/mir-opt/const_prop/ref_deref/rustc.main.ConstProp.diff
index 591fdaddfcc..dcd3d401981 100644
--- a/src/test/mir-opt/const_prop/ref_deref/rustc.main.ConstProp.diff
+++ b/src/test/mir-opt/const_prop/ref_deref/rustc.main.ConstProp.diff
@@ -9,34 +9,34 @@
       let mut _4: &i32;                    // in scope 0 at $DIR/ref_deref.rs:5:6: 5:10
   
       bb0: {
-          StorageLive(_1);                 // bb0[0]: scope 0 at $DIR/ref_deref.rs:5:5: 5:10
-          StorageLive(_2);                 // bb0[1]: scope 0 at $DIR/ref_deref.rs:5:6: 5:10
-          _4 = const main::promoted[0];    // bb0[2]: scope 0 at $DIR/ref_deref.rs:5:6: 5:10
+          StorageLive(_1);                 // scope 0 at $DIR/ref_deref.rs:5:5: 5:10
+          StorageLive(_2);                 // scope 0 at $DIR/ref_deref.rs:5:6: 5:10
+          _4 = const main::promoted[0];    // scope 0 at $DIR/ref_deref.rs:5:6: 5:10
                                            // ty::Const
                                            // + ty: &i32
                                            // + val: Unevaluated(DefId(0:3 ~ ref_deref[317d]::main[0]), [], Some(promoted[0]))
                                            // mir::Constant
                                            // + span: $DIR/ref_deref.rs:5:6: 5:10
                                            // + literal: Const { ty: &i32, val: Unevaluated(DefId(0:3 ~ ref_deref[317d]::main[0]), [], Some(promoted[0])) }
-          _2 = _4;                         // bb0[3]: scope 0 at $DIR/ref_deref.rs:5:6: 5:10
--         _1 = (*_2);                      // bb0[4]: scope 0 at $DIR/ref_deref.rs:5:5: 5:10
-+         _1 = const 4i32;                 // bb0[4]: scope 0 at $DIR/ref_deref.rs:5:5: 5:10
+          _2 = _4;                         // scope 0 at $DIR/ref_deref.rs:5:6: 5:10
+-         _1 = (*_2);                      // scope 0 at $DIR/ref_deref.rs:5:5: 5:10
++         _1 = const 4i32;                 // scope 0 at $DIR/ref_deref.rs:5:5: 5:10
 +                                          // ty::Const
 +                                          // + ty: i32
 +                                          // + val: Value(Scalar(0x00000004))
 +                                          // mir::Constant
 +                                          // + span: $DIR/ref_deref.rs:5:5: 5:10
 +                                          // + literal: Const { ty: i32, val: Value(Scalar(0x00000004)) }
-          StorageDead(_2);                 // bb0[5]: scope 0 at $DIR/ref_deref.rs:5:10: 5:11
-          StorageDead(_1);                 // bb0[6]: scope 0 at $DIR/ref_deref.rs:5:10: 5:11
-          _0 = const ();                   // bb0[7]: scope 0 at $DIR/ref_deref.rs:4:11: 6:2
+          StorageDead(_2);                 // scope 0 at $DIR/ref_deref.rs:5:10: 5:11
+          StorageDead(_1);                 // scope 0 at $DIR/ref_deref.rs:5:10: 5:11
+          _0 = const ();                   // scope 0 at $DIR/ref_deref.rs:4:11: 6:2
                                            // ty::Const
                                            // + ty: ()
                                            // + val: Value(Scalar(<ZST>))
                                            // mir::Constant
                                            // + span: $DIR/ref_deref.rs:4:11: 6:2
                                            // + literal: Const { ty: (), val: Value(Scalar(<ZST>)) }
-          return;                          // bb0[8]: scope 0 at $DIR/ref_deref.rs:6:2: 6:2
+          return;                          // scope 0 at $DIR/ref_deref.rs:6:2: 6:2
       }
   }
   
diff --git a/src/test/mir-opt/const_prop/ref_deref/rustc.main.PromoteTemps.diff b/src/test/mir-opt/const_prop/ref_deref/rustc.main.PromoteTemps.diff
index 5cd9f43a5c6..ef696f1ab80 100644
--- a/src/test/mir-opt/const_prop/ref_deref/rustc.main.PromoteTemps.diff
+++ b/src/test/mir-opt/const_prop/ref_deref/rustc.main.PromoteTemps.diff
@@ -9,11 +9,11 @@
 +     let mut _4: &i32;                    // in scope 0 at $DIR/ref_deref.rs:5:6: 5:10
   
       bb0: {
-          StorageLive(_1);                 // bb0[0]: scope 0 at $DIR/ref_deref.rs:5:5: 5:10
-          StorageLive(_2);                 // bb0[1]: scope 0 at $DIR/ref_deref.rs:5:6: 5:10
--         StorageLive(_3);                 // bb0[2]: scope 0 at $DIR/ref_deref.rs:5:8: 5:9
--         _3 = const 4i32;                 // bb0[3]: scope 0 at $DIR/ref_deref.rs:5:8: 5:9
-+         _4 = const main::promoted[0];    // bb0[2]: scope 0 at $DIR/ref_deref.rs:5:6: 5:10
+          StorageLive(_1);                 // scope 0 at $DIR/ref_deref.rs:5:5: 5:10
+          StorageLive(_2);                 // scope 0 at $DIR/ref_deref.rs:5:6: 5:10
+-         StorageLive(_3);                 // scope 0 at $DIR/ref_deref.rs:5:8: 5:9
+-         _3 = const 4i32;                 // scope 0 at $DIR/ref_deref.rs:5:8: 5:9
++         _4 = const main::promoted[0];    // scope 0 at $DIR/ref_deref.rs:5:6: 5:10
                                            // ty::Const
 -                                          // + ty: i32
 -                                          // + val: Value(Scalar(0x00000004))
@@ -22,27 +22,22 @@
                                            // mir::Constant
 -                                          // + span: $DIR/ref_deref.rs:5:8: 5:9
 -                                          // + literal: Const { ty: i32, val: Value(Scalar(0x00000004)) }
--         _2 = &_3;                        // bb0[4]: scope 0 at $DIR/ref_deref.rs:5:6: 5:10
--         _1 = (*_2);                      // bb0[5]: scope 0 at $DIR/ref_deref.rs:5:5: 5:10
--         StorageDead(_3);                 // bb0[6]: scope 0 at $DIR/ref_deref.rs:5:10: 5:11
--         StorageDead(_2);                 // bb0[7]: scope 0 at $DIR/ref_deref.rs:5:10: 5:11
--         StorageDead(_1);                 // bb0[8]: scope 0 at $DIR/ref_deref.rs:5:10: 5:11
--         _0 = const ();                   // bb0[9]: scope 0 at $DIR/ref_deref.rs:4:11: 6:2
+-         _2 = &_3;                        // scope 0 at $DIR/ref_deref.rs:5:6: 5:10
 +                                          // + span: $DIR/ref_deref.rs:5:6: 5:10
 +                                          // + literal: Const { ty: &i32, val: Unevaluated(DefId(0:3 ~ ref_deref[317d]::main[0]), [], Some(promoted[0])) }
-+         _2 = &(*_4);                     // bb0[3]: scope 0 at $DIR/ref_deref.rs:5:6: 5:10
-+         _1 = (*_2);                      // bb0[4]: scope 0 at $DIR/ref_deref.rs:5:5: 5:10
-+         StorageDead(_2);                 // bb0[5]: scope 0 at $DIR/ref_deref.rs:5:10: 5:11
-+         StorageDead(_1);                 // bb0[6]: scope 0 at $DIR/ref_deref.rs:5:10: 5:11
-+         _0 = const ();                   // bb0[7]: scope 0 at $DIR/ref_deref.rs:4:11: 6:2
++         _2 = &(*_4);                     // scope 0 at $DIR/ref_deref.rs:5:6: 5:10
+          _1 = (*_2);                      // scope 0 at $DIR/ref_deref.rs:5:5: 5:10
+-         StorageDead(_3);                 // scope 0 at $DIR/ref_deref.rs:5:10: 5:11
+          StorageDead(_2);                 // scope 0 at $DIR/ref_deref.rs:5:10: 5:11
+          StorageDead(_1);                 // scope 0 at $DIR/ref_deref.rs:5:10: 5:11
+          _0 = const ();                   // scope 0 at $DIR/ref_deref.rs:4:11: 6:2
                                            // ty::Const
                                            // + ty: ()
                                            // + val: Value(Scalar(<ZST>))
                                            // mir::Constant
                                            // + span: $DIR/ref_deref.rs:4:11: 6:2
                                            // + literal: Const { ty: (), val: Value(Scalar(<ZST>)) }
--         return;                          // bb0[10]: scope 0 at $DIR/ref_deref.rs:6:2: 6:2
-+         return;                          // bb0[8]: scope 0 at $DIR/ref_deref.rs:6:2: 6:2
+          return;                          // scope 0 at $DIR/ref_deref.rs:6:2: 6:2
       }
   }
   
diff --git a/src/test/mir-opt/const_prop/ref_deref_project/rustc.main.ConstProp.diff b/src/test/mir-opt/const_prop/ref_deref_project/rustc.main.ConstProp.diff
index 6393bad2993..dd2f5bd9064 100644
--- a/src/test/mir-opt/const_prop/ref_deref_project/rustc.main.ConstProp.diff
+++ b/src/test/mir-opt/const_prop/ref_deref_project/rustc.main.ConstProp.diff
@@ -9,27 +9,27 @@
       let mut _4: &(i32, i32);             // in scope 0 at $DIR/ref_deref_project.rs:5:6: 5:17
   
       bb0: {
-          StorageLive(_1);                 // bb0[0]: scope 0 at $DIR/ref_deref_project.rs:5:5: 5:17
-          StorageLive(_2);                 // bb0[1]: scope 0 at $DIR/ref_deref_project.rs:5:6: 5:17
-          _4 = const main::promoted[0];    // bb0[2]: scope 0 at $DIR/ref_deref_project.rs:5:6: 5:17
+          StorageLive(_1);                 // scope 0 at $DIR/ref_deref_project.rs:5:5: 5:17
+          StorageLive(_2);                 // scope 0 at $DIR/ref_deref_project.rs:5:6: 5:17
+          _4 = const main::promoted[0];    // scope 0 at $DIR/ref_deref_project.rs:5:6: 5:17
                                            // ty::Const
                                            // + ty: &(i32, i32)
                                            // + val: Unevaluated(DefId(0:3 ~ ref_deref_project[317d]::main[0]), [], Some(promoted[0]))
                                            // mir::Constant
                                            // + span: $DIR/ref_deref_project.rs:5:6: 5:17
                                            // + literal: Const { ty: &(i32, i32), val: Unevaluated(DefId(0:3 ~ ref_deref_project[317d]::main[0]), [], Some(promoted[0])) }
-          _2 = &((*_4).1: i32);            // bb0[3]: scope 0 at $DIR/ref_deref_project.rs:5:6: 5:17
-          _1 = (*_2);                      // bb0[4]: scope 0 at $DIR/ref_deref_project.rs:5:5: 5:17
-          StorageDead(_2);                 // bb0[5]: scope 0 at $DIR/ref_deref_project.rs:5:17: 5:18
-          StorageDead(_1);                 // bb0[6]: scope 0 at $DIR/ref_deref_project.rs:5:17: 5:18
-          _0 = const ();                   // bb0[7]: scope 0 at $DIR/ref_deref_project.rs:4:11: 6:2
+          _2 = &((*_4).1: i32);            // scope 0 at $DIR/ref_deref_project.rs:5:6: 5:17
+          _1 = (*_2);                      // scope 0 at $DIR/ref_deref_project.rs:5:5: 5:17
+          StorageDead(_2);                 // scope 0 at $DIR/ref_deref_project.rs:5:17: 5:18
+          StorageDead(_1);                 // scope 0 at $DIR/ref_deref_project.rs:5:17: 5:18
+          _0 = const ();                   // scope 0 at $DIR/ref_deref_project.rs:4:11: 6:2
                                            // ty::Const
                                            // + ty: ()
                                            // + val: Value(Scalar(<ZST>))
                                            // mir::Constant
                                            // + span: $DIR/ref_deref_project.rs:4:11: 6:2
                                            // + literal: Const { ty: (), val: Value(Scalar(<ZST>)) }
-          return;                          // bb0[8]: scope 0 at $DIR/ref_deref_project.rs:6:2: 6:2
+          return;                          // scope 0 at $DIR/ref_deref_project.rs:6:2: 6:2
       }
   }
   
diff --git a/src/test/mir-opt/const_prop/ref_deref_project/rustc.main.PromoteTemps.diff b/src/test/mir-opt/const_prop/ref_deref_project/rustc.main.PromoteTemps.diff
index 020ad7278c0..7f23f5ea7a6 100644
--- a/src/test/mir-opt/const_prop/ref_deref_project/rustc.main.PromoteTemps.diff
+++ b/src/test/mir-opt/const_prop/ref_deref_project/rustc.main.PromoteTemps.diff
@@ -9,11 +9,11 @@
 +     let mut _4: &(i32, i32);             // in scope 0 at $DIR/ref_deref_project.rs:5:6: 5:17
   
       bb0: {
-          StorageLive(_1);                 // bb0[0]: scope 0 at $DIR/ref_deref_project.rs:5:5: 5:17
-          StorageLive(_2);                 // bb0[1]: scope 0 at $DIR/ref_deref_project.rs:5:6: 5:17
--         StorageLive(_3);                 // bb0[2]: scope 0 at $DIR/ref_deref_project.rs:5:8: 5:14
--         _3 = (const 4i32, const 5i32);   // bb0[3]: scope 0 at $DIR/ref_deref_project.rs:5:8: 5:14
-+         _4 = const main::promoted[0];    // bb0[2]: scope 0 at $DIR/ref_deref_project.rs:5:6: 5:17
+          StorageLive(_1);                 // scope 0 at $DIR/ref_deref_project.rs:5:5: 5:17
+          StorageLive(_2);                 // scope 0 at $DIR/ref_deref_project.rs:5:6: 5:17
+-         StorageLive(_3);                 // scope 0 at $DIR/ref_deref_project.rs:5:8: 5:14
+-         _3 = (const 4i32, const 5i32);   // scope 0 at $DIR/ref_deref_project.rs:5:8: 5:14
++         _4 = const main::promoted[0];    // scope 0 at $DIR/ref_deref_project.rs:5:6: 5:17
                                            // ty::Const
 -                                          // + ty: i32
 -                                          // + val: Value(Scalar(0x00000004))
@@ -22,33 +22,28 @@
                                            // mir::Constant
 -                                          // + span: $DIR/ref_deref_project.rs:5:9: 5:10
 -                                          // + literal: Const { ty: i32, val: Value(Scalar(0x00000004)) }
-+                                          // + span: $DIR/ref_deref_project.rs:5:6: 5:17
-+                                          // + literal: Const { ty: &(i32, i32), val: Unevaluated(DefId(0:3 ~ ref_deref_project[317d]::main[0]), [], Some(promoted[0])) }
-+         _2 = &((*_4).1: i32);            // bb0[3]: scope 0 at $DIR/ref_deref_project.rs:5:6: 5:17
-+         _1 = (*_2);                      // bb0[4]: scope 0 at $DIR/ref_deref_project.rs:5:5: 5:17
-+         StorageDead(_2);                 // bb0[5]: scope 0 at $DIR/ref_deref_project.rs:5:17: 5:18
-+         StorageDead(_1);                 // bb0[6]: scope 0 at $DIR/ref_deref_project.rs:5:17: 5:18
-+         _0 = const ();                   // bb0[7]: scope 0 at $DIR/ref_deref_project.rs:4:11: 6:2
-                                           // ty::Const
+-                                          // ty::Const
 -                                          // + ty: i32
 -                                          // + val: Value(Scalar(0x00000005))
 -                                          // mir::Constant
 -                                          // + span: $DIR/ref_deref_project.rs:5:12: 5:13
 -                                          // + literal: Const { ty: i32, val: Value(Scalar(0x00000005)) }
--         _2 = &(_3.1: i32);               // bb0[4]: scope 0 at $DIR/ref_deref_project.rs:5:6: 5:17
--         _1 = (*_2);                      // bb0[5]: scope 0 at $DIR/ref_deref_project.rs:5:5: 5:17
--         StorageDead(_3);                 // bb0[6]: scope 0 at $DIR/ref_deref_project.rs:5:17: 5:18
--         StorageDead(_2);                 // bb0[7]: scope 0 at $DIR/ref_deref_project.rs:5:17: 5:18
--         StorageDead(_1);                 // bb0[8]: scope 0 at $DIR/ref_deref_project.rs:5:17: 5:18
--         _0 = const ();                   // bb0[9]: scope 0 at $DIR/ref_deref_project.rs:4:11: 6:2
--                                          // ty::Const
+-         _2 = &(_3.1: i32);               // scope 0 at $DIR/ref_deref_project.rs:5:6: 5:17
++                                          // + span: $DIR/ref_deref_project.rs:5:6: 5:17
++                                          // + literal: Const { ty: &(i32, i32), val: Unevaluated(DefId(0:3 ~ ref_deref_project[317d]::main[0]), [], Some(promoted[0])) }
++         _2 = &((*_4).1: i32);            // scope 0 at $DIR/ref_deref_project.rs:5:6: 5:17
+          _1 = (*_2);                      // scope 0 at $DIR/ref_deref_project.rs:5:5: 5:17
+-         StorageDead(_3);                 // scope 0 at $DIR/ref_deref_project.rs:5:17: 5:18
+          StorageDead(_2);                 // scope 0 at $DIR/ref_deref_project.rs:5:17: 5:18
+          StorageDead(_1);                 // scope 0 at $DIR/ref_deref_project.rs:5:17: 5:18
+          _0 = const ();                   // scope 0 at $DIR/ref_deref_project.rs:4:11: 6:2
+                                           // ty::Const
                                            // + ty: ()
                                            // + val: Value(Scalar(<ZST>))
                                            // mir::Constant
                                            // + span: $DIR/ref_deref_project.rs:4:11: 6:2
                                            // + literal: Const { ty: (), val: Value(Scalar(<ZST>)) }
--         return;                          // bb0[10]: scope 0 at $DIR/ref_deref_project.rs:6:2: 6:2
-+         return;                          // bb0[8]: scope 0 at $DIR/ref_deref_project.rs:6:2: 6:2
+          return;                          // scope 0 at $DIR/ref_deref_project.rs:6:2: 6:2
       }
   }
   
diff --git a/src/test/mir-opt/const_prop/reify_fn_ptr/rustc.main.ConstProp.diff b/src/test/mir-opt/const_prop/reify_fn_ptr/rustc.main.ConstProp.diff
index 388ebe08689..93fe856c8e8 100644
--- a/src/test/mir-opt/const_prop/reify_fn_ptr/rustc.main.ConstProp.diff
+++ b/src/test/mir-opt/const_prop/reify_fn_ptr/rustc.main.ConstProp.diff
@@ -10,29 +10,29 @@
       }
   
       bb0: {
-          StorageLive(_1);                 // bb0[0]: scope 0 at $DIR/reify_fn_ptr.rs:4:13: 4:41
-          StorageLive(_2);                 // bb0[1]: scope 0 at $DIR/reify_fn_ptr.rs:4:13: 4:26
-          StorageLive(_3);                 // bb0[2]: scope 0 at $DIR/reify_fn_ptr.rs:4:13: 4:17
-          _3 = const main as fn() (Pointer(ReifyFnPointer)); // bb0[3]: scope 0 at $DIR/reify_fn_ptr.rs:4:13: 4:17
+          StorageLive(_1);                 // scope 0 at $DIR/reify_fn_ptr.rs:4:13: 4:41
+          StorageLive(_2);                 // scope 0 at $DIR/reify_fn_ptr.rs:4:13: 4:26
+          StorageLive(_3);                 // scope 0 at $DIR/reify_fn_ptr.rs:4:13: 4:17
+          _3 = const main as fn() (Pointer(ReifyFnPointer)); // scope 0 at $DIR/reify_fn_ptr.rs:4:13: 4:17
                                            // ty::Const
                                            // + ty: fn() {main}
                                            // + val: Value(Scalar(<ZST>))
                                            // mir::Constant
                                            // + span: $DIR/reify_fn_ptr.rs:4:13: 4:17
                                            // + literal: Const { ty: fn() {main}, val: Value(Scalar(<ZST>)) }
-          _2 = move _3 as usize (Misc);    // bb0[4]: scope 0 at $DIR/reify_fn_ptr.rs:4:13: 4:26
-          StorageDead(_3);                 // bb0[5]: scope 0 at $DIR/reify_fn_ptr.rs:4:25: 4:26
-          _1 = move _2 as *const fn() (Misc); // bb0[6]: scope 0 at $DIR/reify_fn_ptr.rs:4:13: 4:41
-          StorageDead(_2);                 // bb0[7]: scope 0 at $DIR/reify_fn_ptr.rs:4:40: 4:41
-          StorageDead(_1);                 // bb0[8]: scope 0 at $DIR/reify_fn_ptr.rs:4:41: 4:42
-          _0 = const ();                   // bb0[9]: scope 0 at $DIR/reify_fn_ptr.rs:3:11: 5:2
+          _2 = move _3 as usize (Misc);    // scope 0 at $DIR/reify_fn_ptr.rs:4:13: 4:26
+          StorageDead(_3);                 // scope 0 at $DIR/reify_fn_ptr.rs:4:25: 4:26
+          _1 = move _2 as *const fn() (Misc); // scope 0 at $DIR/reify_fn_ptr.rs:4:13: 4:41
+          StorageDead(_2);                 // scope 0 at $DIR/reify_fn_ptr.rs:4:40: 4:41
+          StorageDead(_1);                 // scope 0 at $DIR/reify_fn_ptr.rs:4:41: 4:42
+          _0 = const ();                   // scope 0 at $DIR/reify_fn_ptr.rs:3:11: 5:2
                                            // ty::Const
                                            // + ty: ()
                                            // + val: Value(Scalar(<ZST>))
                                            // mir::Constant
                                            // + span: $DIR/reify_fn_ptr.rs:3:11: 5:2
                                            // + literal: Const { ty: (), val: Value(Scalar(<ZST>)) }
-          return;                          // bb0[10]: scope 0 at $DIR/reify_fn_ptr.rs:5:2: 5:2
+          return;                          // scope 0 at $DIR/reify_fn_ptr.rs:5:2: 5:2
       }
   }
   
diff --git a/src/test/mir-opt/const_prop/repeat/32bit/rustc.main.ConstProp.diff b/src/test/mir-opt/const_prop/repeat/32bit/rustc.main.ConstProp.diff
index 921de794722..4ccfe1838d9 100644
--- a/src/test/mir-opt/const_prop/repeat/32bit/rustc.main.ConstProp.diff
+++ b/src/test/mir-opt/const_prop/repeat/32bit/rustc.main.ConstProp.diff
@@ -14,41 +14,41 @@
       }
   
       bb0: {
-          StorageLive(_1);                 // bb0[0]: scope 0 at $DIR/repeat.rs:6:9: 6:10
-          StorageLive(_2);                 // bb0[1]: scope 0 at $DIR/repeat.rs:6:18: 6:28
-          StorageLive(_3);                 // bb0[2]: scope 0 at $DIR/repeat.rs:6:18: 6:25
-          _3 = [const 42u32; 8];           // bb0[3]: scope 0 at $DIR/repeat.rs:6:18: 6:25
+          StorageLive(_1);                 // scope 0 at $DIR/repeat.rs:6:9: 6:10
+          StorageLive(_2);                 // scope 0 at $DIR/repeat.rs:6:18: 6:28
+          StorageLive(_3);                 // scope 0 at $DIR/repeat.rs:6:18: 6:25
+          _3 = [const 42u32; 8];           // scope 0 at $DIR/repeat.rs:6:18: 6:25
                                            // ty::Const
                                            // + ty: u32
                                            // + val: Value(Scalar(0x0000002a))
                                            // mir::Constant
                                            // + span: $DIR/repeat.rs:6:19: 6:21
                                            // + literal: Const { ty: u32, val: Value(Scalar(0x0000002a)) }
-          StorageLive(_4);                 // bb0[4]: scope 0 at $DIR/repeat.rs:6:26: 6:27
-          _4 = const 2usize;               // bb0[5]: scope 0 at $DIR/repeat.rs:6:26: 6:27
+          StorageLive(_4);                 // scope 0 at $DIR/repeat.rs:6:26: 6:27
+          _4 = const 2usize;               // scope 0 at $DIR/repeat.rs:6:26: 6:27
                                            // ty::Const
                                            // + ty: usize
                                            // + val: Value(Scalar(0x00000002))
                                            // mir::Constant
                                            // + span: $DIR/repeat.rs:6:26: 6:27
                                            // + literal: Const { ty: usize, val: Value(Scalar(0x00000002)) }
-          _5 = const 8usize;               // bb0[6]: scope 0 at $DIR/repeat.rs:6:18: 6:28
+          _5 = const 8usize;               // scope 0 at $DIR/repeat.rs:6:18: 6:28
                                            // ty::Const
                                            // + ty: usize
                                            // + val: Value(Scalar(0x00000008))
                                            // mir::Constant
                                            // + span: $DIR/repeat.rs:6:18: 6:28
                                            // + literal: Const { ty: usize, val: Value(Scalar(0x00000008)) }
--         _6 = Lt(_4, _5);                 // bb0[7]: scope 0 at $DIR/repeat.rs:6:18: 6:28
--         assert(move _6, "index out of bounds: the len is {} but the index is {}", move _5, _4) -> bb1; // bb0[8]: scope 0 at $DIR/repeat.rs:6:18: 6:28
-+         _6 = const true;                 // bb0[7]: scope 0 at $DIR/repeat.rs:6:18: 6:28
+-         _6 = Lt(_4, _5);                 // scope 0 at $DIR/repeat.rs:6:18: 6:28
+-         assert(move _6, "index out of bounds: the len is {} but the index is {}", move _5, _4) -> bb1; // scope 0 at $DIR/repeat.rs:6:18: 6:28
++         _6 = const true;                 // scope 0 at $DIR/repeat.rs:6:18: 6:28
 +                                          // ty::Const
 +                                          // + ty: bool
 +                                          // + val: Value(Scalar(0x01))
 +                                          // mir::Constant
 +                                          // + span: $DIR/repeat.rs:6:18: 6:28
 +                                          // + literal: Const { ty: bool, val: Value(Scalar(0x01)) }
-+         assert(const true, "index out of bounds: the len is {} but the index is {}", move _5, _4) -> bb1; // bb0[8]: scope 0 at $DIR/repeat.rs:6:18: 6:28
++         assert(const true, "index out of bounds: the len is {} but the index is {}", move _5, _4) -> bb1; // scope 0 at $DIR/repeat.rs:6:18: 6:28
 +                                          // ty::Const
 +                                          // + ty: bool
 +                                          // + val: Value(Scalar(0x01))
@@ -58,9 +58,9 @@
       }
   
       bb1: {
--         _2 = _3[_4];                     // bb1[0]: scope 0 at $DIR/repeat.rs:6:18: 6:28
--         _1 = Add(move _2, const 0u32);   // bb1[1]: scope 0 at $DIR/repeat.rs:6:18: 6:32
-+         _2 = const 42u32;                // bb1[0]: scope 0 at $DIR/repeat.rs:6:18: 6:28
+-         _2 = _3[_4];                     // scope 0 at $DIR/repeat.rs:6:18: 6:28
+-         _1 = Add(move _2, const 0u32);   // scope 0 at $DIR/repeat.rs:6:18: 6:32
++         _2 = const 42u32;                // scope 0 at $DIR/repeat.rs:6:18: 6:28
                                            // ty::Const
                                            // + ty: u32
 -                                          // + val: Value(Scalar(0x00000000))
@@ -70,25 +70,25 @@
 -                                          // + literal: Const { ty: u32, val: Value(Scalar(0x00000000)) }
 +                                          // + span: $DIR/repeat.rs:6:18: 6:28
 +                                          // + literal: Const { ty: u32, val: Value(Scalar(0x0000002a)) }
-+         _1 = const 42u32;                // bb1[1]: scope 0 at $DIR/repeat.rs:6:18: 6:32
++         _1 = const 42u32;                // scope 0 at $DIR/repeat.rs:6:18: 6:32
 +                                          // ty::Const
 +                                          // + ty: u32
 +                                          // + val: Value(Scalar(0x0000002a))
 +                                          // mir::Constant
 +                                          // + span: $DIR/repeat.rs:6:18: 6:32
 +                                          // + literal: Const { ty: u32, val: Value(Scalar(0x0000002a)) }
-          StorageDead(_2);                 // bb1[2]: scope 0 at $DIR/repeat.rs:6:31: 6:32
-          StorageDead(_4);                 // bb1[3]: scope 0 at $DIR/repeat.rs:6:32: 6:33
-          StorageDead(_3);                 // bb1[4]: scope 0 at $DIR/repeat.rs:6:32: 6:33
-          _0 = const ();                   // bb1[5]: scope 0 at $DIR/repeat.rs:5:11: 7:2
+          StorageDead(_2);                 // scope 0 at $DIR/repeat.rs:6:31: 6:32
+          StorageDead(_4);                 // scope 0 at $DIR/repeat.rs:6:32: 6:33
+          StorageDead(_3);                 // scope 0 at $DIR/repeat.rs:6:32: 6:33
+          _0 = const ();                   // scope 0 at $DIR/repeat.rs:5:11: 7:2
                                            // ty::Const
                                            // + ty: ()
                                            // + val: Value(Scalar(<ZST>))
                                            // mir::Constant
                                            // + span: $DIR/repeat.rs:5:11: 7:2
                                            // + literal: Const { ty: (), val: Value(Scalar(<ZST>)) }
-          StorageDead(_1);                 // bb1[6]: scope 0 at $DIR/repeat.rs:7:1: 7:2
-          return;                          // bb1[7]: scope 0 at $DIR/repeat.rs:7:2: 7:2
+          StorageDead(_1);                 // scope 0 at $DIR/repeat.rs:7:1: 7:2
+          return;                          // scope 0 at $DIR/repeat.rs:7:2: 7:2
       }
   }
   
diff --git a/src/test/mir-opt/const_prop/repeat/64bit/rustc.main.ConstProp.diff b/src/test/mir-opt/const_prop/repeat/64bit/rustc.main.ConstProp.diff
index 361ee493378..fe9d16c4ffa 100644
--- a/src/test/mir-opt/const_prop/repeat/64bit/rustc.main.ConstProp.diff
+++ b/src/test/mir-opt/const_prop/repeat/64bit/rustc.main.ConstProp.diff
@@ -14,41 +14,41 @@
       }
   
       bb0: {
-          StorageLive(_1);                 // bb0[0]: scope 0 at $DIR/repeat.rs:6:9: 6:10
-          StorageLive(_2);                 // bb0[1]: scope 0 at $DIR/repeat.rs:6:18: 6:28
-          StorageLive(_3);                 // bb0[2]: scope 0 at $DIR/repeat.rs:6:18: 6:25
-          _3 = [const 42u32; 8];           // bb0[3]: scope 0 at $DIR/repeat.rs:6:18: 6:25
+          StorageLive(_1);                 // scope 0 at $DIR/repeat.rs:6:9: 6:10
+          StorageLive(_2);                 // scope 0 at $DIR/repeat.rs:6:18: 6:28
+          StorageLive(_3);                 // scope 0 at $DIR/repeat.rs:6:18: 6:25
+          _3 = [const 42u32; 8];           // scope 0 at $DIR/repeat.rs:6:18: 6:25
                                            // ty::Const
                                            // + ty: u32
                                            // + val: Value(Scalar(0x0000002a))
                                            // mir::Constant
                                            // + span: $DIR/repeat.rs:6:19: 6:21
                                            // + literal: Const { ty: u32, val: Value(Scalar(0x0000002a)) }
-          StorageLive(_4);                 // bb0[4]: scope 0 at $DIR/repeat.rs:6:26: 6:27
-          _4 = const 2usize;               // bb0[5]: scope 0 at $DIR/repeat.rs:6:26: 6:27
+          StorageLive(_4);                 // scope 0 at $DIR/repeat.rs:6:26: 6:27
+          _4 = const 2usize;               // scope 0 at $DIR/repeat.rs:6:26: 6:27
                                            // ty::Const
                                            // + ty: usize
                                            // + val: Value(Scalar(0x0000000000000002))
                                            // mir::Constant
                                            // + span: $DIR/repeat.rs:6:26: 6:27
                                            // + literal: Const { ty: usize, val: Value(Scalar(0x0000000000000002)) }
-          _5 = const 8usize;               // bb0[6]: scope 0 at $DIR/repeat.rs:6:18: 6:28
+          _5 = const 8usize;               // scope 0 at $DIR/repeat.rs:6:18: 6:28
                                            // ty::Const
                                            // + ty: usize
                                            // + val: Value(Scalar(0x0000000000000008))
                                            // mir::Constant
                                            // + span: $DIR/repeat.rs:6:18: 6:28
                                            // + literal: Const { ty: usize, val: Value(Scalar(0x0000000000000008)) }
--         _6 = Lt(_4, _5);                 // bb0[7]: scope 0 at $DIR/repeat.rs:6:18: 6:28
--         assert(move _6, "index out of bounds: the len is {} but the index is {}", move _5, _4) -> bb1; // bb0[8]: scope 0 at $DIR/repeat.rs:6:18: 6:28
-+         _6 = const true;                 // bb0[7]: scope 0 at $DIR/repeat.rs:6:18: 6:28
+-         _6 = Lt(_4, _5);                 // scope 0 at $DIR/repeat.rs:6:18: 6:28
+-         assert(move _6, "index out of bounds: the len is {} but the index is {}", move _5, _4) -> bb1; // scope 0 at $DIR/repeat.rs:6:18: 6:28
++         _6 = const true;                 // scope 0 at $DIR/repeat.rs:6:18: 6:28
 +                                          // ty::Const
 +                                          // + ty: bool
 +                                          // + val: Value(Scalar(0x01))
 +                                          // mir::Constant
 +                                          // + span: $DIR/repeat.rs:6:18: 6:28
 +                                          // + literal: Const { ty: bool, val: Value(Scalar(0x01)) }
-+         assert(const true, "index out of bounds: the len is {} but the index is {}", move _5, _4) -> bb1; // bb0[8]: scope 0 at $DIR/repeat.rs:6:18: 6:28
++         assert(const true, "index out of bounds: the len is {} but the index is {}", move _5, _4) -> bb1; // scope 0 at $DIR/repeat.rs:6:18: 6:28
 +                                          // ty::Const
 +                                          // + ty: bool
 +                                          // + val: Value(Scalar(0x01))
@@ -58,9 +58,9 @@
       }
   
       bb1: {
--         _2 = _3[_4];                     // bb1[0]: scope 0 at $DIR/repeat.rs:6:18: 6:28
--         _1 = Add(move _2, const 0u32);   // bb1[1]: scope 0 at $DIR/repeat.rs:6:18: 6:32
-+         _2 = const 42u32;                // bb1[0]: scope 0 at $DIR/repeat.rs:6:18: 6:28
+-         _2 = _3[_4];                     // scope 0 at $DIR/repeat.rs:6:18: 6:28
+-         _1 = Add(move _2, const 0u32);   // scope 0 at $DIR/repeat.rs:6:18: 6:32
++         _2 = const 42u32;                // scope 0 at $DIR/repeat.rs:6:18: 6:28
                                            // ty::Const
                                            // + ty: u32
 -                                          // + val: Value(Scalar(0x00000000))
@@ -70,25 +70,25 @@
 -                                          // + literal: Const { ty: u32, val: Value(Scalar(0x00000000)) }
 +                                          // + span: $DIR/repeat.rs:6:18: 6:28
 +                                          // + literal: Const { ty: u32, val: Value(Scalar(0x0000002a)) }
-+         _1 = const 42u32;                // bb1[1]: scope 0 at $DIR/repeat.rs:6:18: 6:32
++         _1 = const 42u32;                // scope 0 at $DIR/repeat.rs:6:18: 6:32
 +                                          // ty::Const
 +                                          // + ty: u32
 +                                          // + val: Value(Scalar(0x0000002a))
 +                                          // mir::Constant
 +                                          // + span: $DIR/repeat.rs:6:18: 6:32
 +                                          // + literal: Const { ty: u32, val: Value(Scalar(0x0000002a)) }
-          StorageDead(_2);                 // bb1[2]: scope 0 at $DIR/repeat.rs:6:31: 6:32
-          StorageDead(_4);                 // bb1[3]: scope 0 at $DIR/repeat.rs:6:32: 6:33
-          StorageDead(_3);                 // bb1[4]: scope 0 at $DIR/repeat.rs:6:32: 6:33
-          _0 = const ();                   // bb1[5]: scope 0 at $DIR/repeat.rs:5:11: 7:2
+          StorageDead(_2);                 // scope 0 at $DIR/repeat.rs:6:31: 6:32
+          StorageDead(_4);                 // scope 0 at $DIR/repeat.rs:6:32: 6:33
+          StorageDead(_3);                 // scope 0 at $DIR/repeat.rs:6:32: 6:33
+          _0 = const ();                   // scope 0 at $DIR/repeat.rs:5:11: 7:2
                                            // ty::Const
                                            // + ty: ()
                                            // + val: Value(Scalar(<ZST>))
                                            // mir::Constant
                                            // + span: $DIR/repeat.rs:5:11: 7:2
                                            // + literal: Const { ty: (), val: Value(Scalar(<ZST>)) }
-          StorageDead(_1);                 // bb1[6]: scope 0 at $DIR/repeat.rs:7:1: 7:2
-          return;                          // bb1[7]: scope 0 at $DIR/repeat.rs:7:2: 7:2
+          StorageDead(_1);                 // scope 0 at $DIR/repeat.rs:7:1: 7:2
+          return;                          // scope 0 at $DIR/repeat.rs:7:2: 7:2
       }
   }
   
diff --git a/src/test/mir-opt/const_prop/return_place/rustc.add.ConstProp.diff b/src/test/mir-opt/const_prop/return_place/rustc.add.ConstProp.diff
index 3453c424a36..fc7d028277b 100644
--- a/src/test/mir-opt/const_prop/return_place/rustc.add.ConstProp.diff
+++ b/src/test/mir-opt/const_prop/return_place/rustc.add.ConstProp.diff
@@ -6,8 +6,8 @@
       let mut _1: (u32, bool);             // in scope 0 at $DIR/return_place.rs:6:5: 6:10
   
       bb0: {
--         _1 = CheckedAdd(const 2u32, const 2u32); // bb0[0]: scope 0 at $DIR/return_place.rs:6:5: 6:10
-+         _1 = (const 4u32, const false);  // bb0[0]: scope 0 at $DIR/return_place.rs:6:5: 6:10
+-         _1 = CheckedAdd(const 2u32, const 2u32); // scope 0 at $DIR/return_place.rs:6:5: 6:10
++         _1 = (const 4u32, const false);  // scope 0 at $DIR/return_place.rs:6:5: 6:10
                                            // ty::Const
                                            // + ty: u32
 -                                          // + val: Value(Scalar(0x00000002))
@@ -25,10 +25,10 @@
                                            // mir::Constant
 -                                          // + span: $DIR/return_place.rs:6:9: 6:10
 -                                          // + literal: Const { ty: u32, val: Value(Scalar(0x00000002)) }
--         assert(!move (_1.1: bool), "attempt to add with overflow") -> bb1; // bb0[1]: scope 0 at $DIR/return_place.rs:6:5: 6:10
+-         assert(!move (_1.1: bool), "attempt to add with overflow") -> bb1; // scope 0 at $DIR/return_place.rs:6:5: 6:10
 +                                          // + span: $DIR/return_place.rs:6:5: 6:10
 +                                          // + literal: Const { ty: bool, val: Value(Scalar(0x00)) }
-+         assert(!const false, "attempt to add with overflow") -> bb1; // bb0[1]: scope 0 at $DIR/return_place.rs:6:5: 6:10
++         assert(!const false, "attempt to add with overflow") -> bb1; // scope 0 at $DIR/return_place.rs:6:5: 6:10
 +                                          // ty::Const
 +                                          // + ty: bool
 +                                          // + val: Value(Scalar(0x00))
@@ -38,15 +38,15 @@
       }
   
       bb1: {
--         _0 = move (_1.0: u32);           // bb1[0]: scope 0 at $DIR/return_place.rs:6:5: 6:10
-+         _0 = const 4u32;                 // bb1[0]: scope 0 at $DIR/return_place.rs:6:5: 6:10
+-         _0 = move (_1.0: u32);           // scope 0 at $DIR/return_place.rs:6:5: 6:10
++         _0 = const 4u32;                 // scope 0 at $DIR/return_place.rs:6:5: 6:10
 +                                          // ty::Const
 +                                          // + ty: u32
 +                                          // + val: Value(Scalar(0x00000004))
 +                                          // mir::Constant
 +                                          // + span: $DIR/return_place.rs:6:5: 6:10
 +                                          // + literal: Const { ty: u32, val: Value(Scalar(0x00000004)) }
-          return;                          // bb1[1]: scope 0 at $DIR/return_place.rs:7:2: 7:2
+          return;                          // scope 0 at $DIR/return_place.rs:7:2: 7:2
       }
   }
   
diff --git a/src/test/mir-opt/const_prop/return_place/rustc.add.PreCodegen.before.mir b/src/test/mir-opt/const_prop/return_place/rustc.add.PreCodegen.before.mir
index 9af6be771ed..b741c786fb3 100644
--- a/src/test/mir-opt/const_prop/return_place/rustc.add.PreCodegen.before.mir
+++ b/src/test/mir-opt/const_prop/return_place/rustc.add.PreCodegen.before.mir
@@ -4,13 +4,13 @@ fn add() -> u32 {
     let mut _0: u32;                     // return place in scope 0 at $DIR/return_place.rs:5:13: 5:16
 
     bb0: {
-        _0 = const 4u32;                 // bb0[0]: scope 0 at $DIR/return_place.rs:6:5: 6:10
+        _0 = const 4u32;                 // scope 0 at $DIR/return_place.rs:6:5: 6:10
                                          // ty::Const
                                          // + ty: u32
                                          // + val: Value(Scalar(0x00000004))
                                          // mir::Constant
                                          // + span: $DIR/return_place.rs:6:5: 6:10
                                          // + literal: Const { ty: u32, val: Value(Scalar(0x00000004)) }
-        return;                          // bb0[1]: scope 0 at $DIR/return_place.rs:7:2: 7:2
+        return;                          // scope 0 at $DIR/return_place.rs:7:2: 7:2
     }
 }
diff --git a/src/test/mir-opt/const_prop/slice_len/32bit/rustc.main.ConstProp.diff b/src/test/mir-opt/const_prop/slice_len/32bit/rustc.main.ConstProp.diff
index 01818095455..9471dbef410 100644
--- a/src/test/mir-opt/const_prop/slice_len/32bit/rustc.main.ConstProp.diff
+++ b/src/test/mir-opt/const_prop/slice_len/32bit/rustc.main.ConstProp.diff
@@ -14,47 +14,47 @@
       let mut _9: &[u32; 3];               // in scope 0 at $DIR/slice_len.rs:5:6: 5:19
   
       bb0: {
-          StorageLive(_1);                 // bb0[0]: scope 0 at $DIR/slice_len.rs:5:5: 5:33
-          StorageLive(_2);                 // bb0[1]: scope 0 at $DIR/slice_len.rs:5:5: 5:30
-          StorageLive(_3);                 // bb0[2]: scope 0 at $DIR/slice_len.rs:5:6: 5:19
-          StorageLive(_4);                 // bb0[3]: scope 0 at $DIR/slice_len.rs:5:6: 5:19
-          _9 = const main::promoted[0];    // bb0[4]: scope 0 at $DIR/slice_len.rs:5:6: 5:19
+          StorageLive(_1);                 // scope 0 at $DIR/slice_len.rs:5:5: 5:33
+          StorageLive(_2);                 // scope 0 at $DIR/slice_len.rs:5:5: 5:30
+          StorageLive(_3);                 // scope 0 at $DIR/slice_len.rs:5:6: 5:19
+          StorageLive(_4);                 // scope 0 at $DIR/slice_len.rs:5:6: 5:19
+          _9 = const main::promoted[0];    // scope 0 at $DIR/slice_len.rs:5:6: 5:19
                                            // ty::Const
                                            // + ty: &[u32; 3]
                                            // + val: Unevaluated(DefId(0:3 ~ slice_len[317d]::main[0]), [], Some(promoted[0]))
                                            // mir::Constant
                                            // + span: $DIR/slice_len.rs:5:6: 5:19
                                            // + literal: Const { ty: &[u32; 3], val: Unevaluated(DefId(0:3 ~ slice_len[317d]::main[0]), [], Some(promoted[0])) }
-          _4 = _9;                         // bb0[5]: scope 0 at $DIR/slice_len.rs:5:6: 5:19
-          _3 = _4;                         // bb0[6]: scope 0 at $DIR/slice_len.rs:5:6: 5:19
-          _2 = move _3 as &[u32] (Pointer(Unsize)); // bb0[7]: scope 0 at $DIR/slice_len.rs:5:6: 5:19
-          StorageDead(_3);                 // bb0[8]: scope 0 at $DIR/slice_len.rs:5:18: 5:19
-          StorageLive(_6);                 // bb0[9]: scope 0 at $DIR/slice_len.rs:5:31: 5:32
-          _6 = const 1usize;               // bb0[10]: scope 0 at $DIR/slice_len.rs:5:31: 5:32
+          _4 = _9;                         // scope 0 at $DIR/slice_len.rs:5:6: 5:19
+          _3 = _4;                         // scope 0 at $DIR/slice_len.rs:5:6: 5:19
+          _2 = move _3 as &[u32] (Pointer(Unsize)); // scope 0 at $DIR/slice_len.rs:5:6: 5:19
+          StorageDead(_3);                 // scope 0 at $DIR/slice_len.rs:5:18: 5:19
+          StorageLive(_6);                 // scope 0 at $DIR/slice_len.rs:5:31: 5:32
+          _6 = const 1usize;               // scope 0 at $DIR/slice_len.rs:5:31: 5:32
                                            // ty::Const
                                            // + ty: usize
                                            // + val: Value(Scalar(0x00000001))
                                            // mir::Constant
                                            // + span: $DIR/slice_len.rs:5:31: 5:32
                                            // + literal: Const { ty: usize, val: Value(Scalar(0x00000001)) }
--         _7 = Len((*_2));                 // bb0[11]: scope 0 at $DIR/slice_len.rs:5:5: 5:33
--         _8 = Lt(_6, _7);                 // bb0[12]: scope 0 at $DIR/slice_len.rs:5:5: 5:33
--         assert(move _8, "index out of bounds: the len is {} but the index is {}", move _7, _6) -> bb1; // bb0[13]: scope 0 at $DIR/slice_len.rs:5:5: 5:33
-+         _7 = const 3usize;               // bb0[11]: scope 0 at $DIR/slice_len.rs:5:5: 5:33
+-         _7 = Len((*_2));                 // scope 0 at $DIR/slice_len.rs:5:5: 5:33
+-         _8 = Lt(_6, _7);                 // scope 0 at $DIR/slice_len.rs:5:5: 5:33
+-         assert(move _8, "index out of bounds: the len is {} but the index is {}", move _7, _6) -> bb1; // scope 0 at $DIR/slice_len.rs:5:5: 5:33
++         _7 = const 3usize;               // scope 0 at $DIR/slice_len.rs:5:5: 5:33
 +                                          // ty::Const
 +                                          // + ty: usize
 +                                          // + val: Value(Scalar(0x00000003))
 +                                          // mir::Constant
 +                                          // + span: $DIR/slice_len.rs:5:5: 5:33
 +                                          // + literal: Const { ty: usize, val: Value(Scalar(0x00000003)) }
-+         _8 = const true;                 // bb0[12]: scope 0 at $DIR/slice_len.rs:5:5: 5:33
++         _8 = const true;                 // scope 0 at $DIR/slice_len.rs:5:5: 5:33
 +                                          // ty::Const
 +                                          // + ty: bool
 +                                          // + val: Value(Scalar(0x01))
 +                                          // mir::Constant
 +                                          // + span: $DIR/slice_len.rs:5:5: 5:33
 +                                          // + literal: Const { ty: bool, val: Value(Scalar(0x01)) }
-+         assert(const true, "index out of bounds: the len is {} but the index is {}", move _7, _6) -> bb1; // bb0[13]: scope 0 at $DIR/slice_len.rs:5:5: 5:33
++         assert(const true, "index out of bounds: the len is {} but the index is {}", move _7, _6) -> bb1; // scope 0 at $DIR/slice_len.rs:5:5: 5:33
 +                                          // ty::Const
 +                                          // + ty: bool
 +                                          // + val: Value(Scalar(0x01))
@@ -64,26 +64,26 @@
       }
   
       bb1: {
--         _1 = (*_2)[_6];                  // bb1[0]: scope 0 at $DIR/slice_len.rs:5:5: 5:33
-+         _1 = const 2u32;                 // bb1[0]: scope 0 at $DIR/slice_len.rs:5:5: 5:33
+-         _1 = (*_2)[_6];                  // scope 0 at $DIR/slice_len.rs:5:5: 5:33
++         _1 = const 2u32;                 // scope 0 at $DIR/slice_len.rs:5:5: 5:33
 +                                          // ty::Const
 +                                          // + ty: u32
 +                                          // + val: Value(Scalar(0x00000002))
 +                                          // mir::Constant
 +                                          // + span: $DIR/slice_len.rs:5:5: 5:33
 +                                          // + literal: Const { ty: u32, val: Value(Scalar(0x00000002)) }
-          StorageDead(_6);                 // bb1[1]: scope 0 at $DIR/slice_len.rs:5:33: 5:34
-          StorageDead(_4);                 // bb1[2]: scope 0 at $DIR/slice_len.rs:5:33: 5:34
-          StorageDead(_2);                 // bb1[3]: scope 0 at $DIR/slice_len.rs:5:33: 5:34
-          StorageDead(_1);                 // bb1[4]: scope 0 at $DIR/slice_len.rs:5:33: 5:34
-          _0 = const ();                   // bb1[5]: scope 0 at $DIR/slice_len.rs:4:11: 6:2
+          StorageDead(_6);                 // scope 0 at $DIR/slice_len.rs:5:33: 5:34
+          StorageDead(_4);                 // scope 0 at $DIR/slice_len.rs:5:33: 5:34
+          StorageDead(_2);                 // scope 0 at $DIR/slice_len.rs:5:33: 5:34
+          StorageDead(_1);                 // scope 0 at $DIR/slice_len.rs:5:33: 5:34
+          _0 = const ();                   // scope 0 at $DIR/slice_len.rs:4:11: 6:2
                                            // ty::Const
                                            // + ty: ()
                                            // + val: Value(Scalar(<ZST>))
                                            // mir::Constant
                                            // + span: $DIR/slice_len.rs:4:11: 6:2
                                            // + literal: Const { ty: (), val: Value(Scalar(<ZST>)) }
-          return;                          // bb1[6]: scope 0 at $DIR/slice_len.rs:6:2: 6:2
+          return;                          // scope 0 at $DIR/slice_len.rs:6:2: 6:2
       }
   }
   
diff --git a/src/test/mir-opt/const_prop/slice_len/64bit/rustc.main.ConstProp.diff b/src/test/mir-opt/const_prop/slice_len/64bit/rustc.main.ConstProp.diff
index f1379446d7a..3ae88e0d798 100644
--- a/src/test/mir-opt/const_prop/slice_len/64bit/rustc.main.ConstProp.diff
+++ b/src/test/mir-opt/const_prop/slice_len/64bit/rustc.main.ConstProp.diff
@@ -14,47 +14,47 @@
       let mut _9: &[u32; 3];               // in scope 0 at $DIR/slice_len.rs:5:6: 5:19
   
       bb0: {
-          StorageLive(_1);                 // bb0[0]: scope 0 at $DIR/slice_len.rs:5:5: 5:33
-          StorageLive(_2);                 // bb0[1]: scope 0 at $DIR/slice_len.rs:5:5: 5:30
-          StorageLive(_3);                 // bb0[2]: scope 0 at $DIR/slice_len.rs:5:6: 5:19
-          StorageLive(_4);                 // bb0[3]: scope 0 at $DIR/slice_len.rs:5:6: 5:19
-          _9 = const main::promoted[0];    // bb0[4]: scope 0 at $DIR/slice_len.rs:5:6: 5:19
+          StorageLive(_1);                 // scope 0 at $DIR/slice_len.rs:5:5: 5:33
+          StorageLive(_2);                 // scope 0 at $DIR/slice_len.rs:5:5: 5:30
+          StorageLive(_3);                 // scope 0 at $DIR/slice_len.rs:5:6: 5:19
+          StorageLive(_4);                 // scope 0 at $DIR/slice_len.rs:5:6: 5:19
+          _9 = const main::promoted[0];    // scope 0 at $DIR/slice_len.rs:5:6: 5:19
                                            // ty::Const
                                            // + ty: &[u32; 3]
                                            // + val: Unevaluated(DefId(0:3 ~ slice_len[317d]::main[0]), [], Some(promoted[0]))
                                            // mir::Constant
                                            // + span: $DIR/slice_len.rs:5:6: 5:19
                                            // + literal: Const { ty: &[u32; 3], val: Unevaluated(DefId(0:3 ~ slice_len[317d]::main[0]), [], Some(promoted[0])) }
-          _4 = _9;                         // bb0[5]: scope 0 at $DIR/slice_len.rs:5:6: 5:19
-          _3 = _4;                         // bb0[6]: scope 0 at $DIR/slice_len.rs:5:6: 5:19
-          _2 = move _3 as &[u32] (Pointer(Unsize)); // bb0[7]: scope 0 at $DIR/slice_len.rs:5:6: 5:19
-          StorageDead(_3);                 // bb0[8]: scope 0 at $DIR/slice_len.rs:5:18: 5:19
-          StorageLive(_6);                 // bb0[9]: scope 0 at $DIR/slice_len.rs:5:31: 5:32
-          _6 = const 1usize;               // bb0[10]: scope 0 at $DIR/slice_len.rs:5:31: 5:32
+          _4 = _9;                         // scope 0 at $DIR/slice_len.rs:5:6: 5:19
+          _3 = _4;                         // scope 0 at $DIR/slice_len.rs:5:6: 5:19
+          _2 = move _3 as &[u32] (Pointer(Unsize)); // scope 0 at $DIR/slice_len.rs:5:6: 5:19
+          StorageDead(_3);                 // scope 0 at $DIR/slice_len.rs:5:18: 5:19
+          StorageLive(_6);                 // scope 0 at $DIR/slice_len.rs:5:31: 5:32
+          _6 = const 1usize;               // scope 0 at $DIR/slice_len.rs:5:31: 5:32
                                            // ty::Const
                                            // + ty: usize
                                            // + val: Value(Scalar(0x0000000000000001))
                                            // mir::Constant
                                            // + span: $DIR/slice_len.rs:5:31: 5:32
                                            // + literal: Const { ty: usize, val: Value(Scalar(0x0000000000000001)) }
--         _7 = Len((*_2));                 // bb0[11]: scope 0 at $DIR/slice_len.rs:5:5: 5:33
--         _8 = Lt(_6, _7);                 // bb0[12]: scope 0 at $DIR/slice_len.rs:5:5: 5:33
--         assert(move _8, "index out of bounds: the len is {} but the index is {}", move _7, _6) -> bb1; // bb0[13]: scope 0 at $DIR/slice_len.rs:5:5: 5:33
-+         _7 = const 3usize;               // bb0[11]: scope 0 at $DIR/slice_len.rs:5:5: 5:33
+-         _7 = Len((*_2));                 // scope 0 at $DIR/slice_len.rs:5:5: 5:33
+-         _8 = Lt(_6, _7);                 // scope 0 at $DIR/slice_len.rs:5:5: 5:33
+-         assert(move _8, "index out of bounds: the len is {} but the index is {}", move _7, _6) -> bb1; // scope 0 at $DIR/slice_len.rs:5:5: 5:33
++         _7 = const 3usize;               // scope 0 at $DIR/slice_len.rs:5:5: 5:33
 +                                          // ty::Const
 +                                          // + ty: usize
 +                                          // + val: Value(Scalar(0x0000000000000003))
 +                                          // mir::Constant
 +                                          // + span: $DIR/slice_len.rs:5:5: 5:33
 +                                          // + literal: Const { ty: usize, val: Value(Scalar(0x0000000000000003)) }
-+         _8 = const true;                 // bb0[12]: scope 0 at $DIR/slice_len.rs:5:5: 5:33
++         _8 = const true;                 // scope 0 at $DIR/slice_len.rs:5:5: 5:33
 +                                          // ty::Const
 +                                          // + ty: bool
 +                                          // + val: Value(Scalar(0x01))
 +                                          // mir::Constant
 +                                          // + span: $DIR/slice_len.rs:5:5: 5:33
 +                                          // + literal: Const { ty: bool, val: Value(Scalar(0x01)) }
-+         assert(const true, "index out of bounds: the len is {} but the index is {}", move _7, _6) -> bb1; // bb0[13]: scope 0 at $DIR/slice_len.rs:5:5: 5:33
++         assert(const true, "index out of bounds: the len is {} but the index is {}", move _7, _6) -> bb1; // scope 0 at $DIR/slice_len.rs:5:5: 5:33
 +                                          // ty::Const
 +                                          // + ty: bool
 +                                          // + val: Value(Scalar(0x01))
@@ -64,26 +64,26 @@
       }
   
       bb1: {
--         _1 = (*_2)[_6];                  // bb1[0]: scope 0 at $DIR/slice_len.rs:5:5: 5:33
-+         _1 = const 2u32;                 // bb1[0]: scope 0 at $DIR/slice_len.rs:5:5: 5:33
+-         _1 = (*_2)[_6];                  // scope 0 at $DIR/slice_len.rs:5:5: 5:33
++         _1 = const 2u32;                 // scope 0 at $DIR/slice_len.rs:5:5: 5:33
 +                                          // ty::Const
 +                                          // + ty: u32
 +                                          // + val: Value(Scalar(0x00000002))
 +                                          // mir::Constant
 +                                          // + span: $DIR/slice_len.rs:5:5: 5:33
 +                                          // + literal: Const { ty: u32, val: Value(Scalar(0x00000002)) }
-          StorageDead(_6);                 // bb1[1]: scope 0 at $DIR/slice_len.rs:5:33: 5:34
-          StorageDead(_4);                 // bb1[2]: scope 0 at $DIR/slice_len.rs:5:33: 5:34
-          StorageDead(_2);                 // bb1[3]: scope 0 at $DIR/slice_len.rs:5:33: 5:34
-          StorageDead(_1);                 // bb1[4]: scope 0 at $DIR/slice_len.rs:5:33: 5:34
-          _0 = const ();                   // bb1[5]: scope 0 at $DIR/slice_len.rs:4:11: 6:2
+          StorageDead(_6);                 // scope 0 at $DIR/slice_len.rs:5:33: 5:34
+          StorageDead(_4);                 // scope 0 at $DIR/slice_len.rs:5:33: 5:34
+          StorageDead(_2);                 // scope 0 at $DIR/slice_len.rs:5:33: 5:34
+          StorageDead(_1);                 // scope 0 at $DIR/slice_len.rs:5:33: 5:34
+          _0 = const ();                   // scope 0 at $DIR/slice_len.rs:4:11: 6:2
                                            // ty::Const
                                            // + ty: ()
                                            // + val: Value(Scalar(<ZST>))
                                            // mir::Constant
                                            // + span: $DIR/slice_len.rs:4:11: 6:2
                                            // + literal: Const { ty: (), val: Value(Scalar(<ZST>)) }
-          return;                          // bb1[6]: scope 0 at $DIR/slice_len.rs:6:2: 6:2
+          return;                          // scope 0 at $DIR/slice_len.rs:6:2: 6:2
       }
   }
   
diff --git a/src/test/mir-opt/const_prop/switch_int/rustc.main.ConstProp.diff b/src/test/mir-opt/const_prop/switch_int/rustc.main.ConstProp.diff
index 92b14309bf2..8072424729a 100644
--- a/src/test/mir-opt/const_prop/switch_int/rustc.main.ConstProp.diff
+++ b/src/test/mir-opt/const_prop/switch_int/rustc.main.ConstProp.diff
@@ -6,16 +6,16 @@
       let mut _1: i32;                     // in scope 0 at $DIR/switch_int.rs:7:11: 7:12
   
       bb0: {
-          StorageLive(_1);                 // bb0[0]: scope 0 at $DIR/switch_int.rs:7:11: 7:12
-          _1 = const 1i32;                 // bb0[1]: scope 0 at $DIR/switch_int.rs:7:11: 7:12
+          StorageLive(_1);                 // scope 0 at $DIR/switch_int.rs:7:11: 7:12
+          _1 = const 1i32;                 // scope 0 at $DIR/switch_int.rs:7:11: 7:12
                                            // ty::Const
                                            // + ty: i32
                                            // + val: Value(Scalar(0x00000001))
                                            // mir::Constant
                                            // + span: $DIR/switch_int.rs:7:11: 7:12
                                            // + literal: Const { ty: i32, val: Value(Scalar(0x00000001)) }
--         switchInt(_1) -> [1i32: bb2, otherwise: bb1]; // bb0[2]: scope 0 at $DIR/switch_int.rs:8:9: 8:10
-+         switchInt(const 1i32) -> [1i32: bb2, otherwise: bb1]; // bb0[2]: scope 0 at $DIR/switch_int.rs:8:9: 8:10
+-         switchInt(_1) -> [1i32: bb2, otherwise: bb1]; // scope 0 at $DIR/switch_int.rs:8:9: 8:10
++         switchInt(const 1i32) -> [1i32: bb2, otherwise: bb1]; // scope 0 at $DIR/switch_int.rs:8:9: 8:10
 +                                          // ty::Const
 +                                          // + ty: i32
 +                                          // + val: Value(Scalar(0x00000001))
@@ -25,7 +25,7 @@
       }
   
       bb1: {
-          _0 = const foo(const -1i32) -> bb3; // bb1[0]: scope 0 at $DIR/switch_int.rs:9:14: 9:21
+          _0 = const foo(const -1i32) -> bb3; // scope 0 at $DIR/switch_int.rs:9:14: 9:21
                                            // ty::Const
                                            // + ty: fn(i32) {foo}
                                            // + val: Value(Scalar(<ZST>))
@@ -41,7 +41,7 @@
       }
   
       bb2: {
-          _0 = const foo(const 0i32) -> bb3; // bb2[0]: scope 0 at $DIR/switch_int.rs:8:14: 8:20
+          _0 = const foo(const 0i32) -> bb3; // scope 0 at $DIR/switch_int.rs:8:14: 8:20
                                            // ty::Const
                                            // + ty: fn(i32) {foo}
                                            // + val: Value(Scalar(<ZST>))
@@ -57,8 +57,8 @@
       }
   
       bb3: {
-          StorageDead(_1);                 // bb3[0]: scope 0 at $DIR/switch_int.rs:11:1: 11:2
-          return;                          // bb3[1]: scope 0 at $DIR/switch_int.rs:11:2: 11:2
+          StorageDead(_1);                 // scope 0 at $DIR/switch_int.rs:11:1: 11:2
+          return;                          // scope 0 at $DIR/switch_int.rs:11:2: 11:2
       }
   }
   
diff --git a/src/test/mir-opt/const_prop/switch_int/rustc.main.SimplifyBranches-after-const-prop.diff b/src/test/mir-opt/const_prop/switch_int/rustc.main.SimplifyBranches-after-const-prop.diff
index e1805cc5731..51f3bf20c1a 100644
--- a/src/test/mir-opt/const_prop/switch_int/rustc.main.SimplifyBranches-after-const-prop.diff
+++ b/src/test/mir-opt/const_prop/switch_int/rustc.main.SimplifyBranches-after-const-prop.diff
@@ -6,26 +6,26 @@
       let mut _1: i32;                     // in scope 0 at $DIR/switch_int.rs:7:11: 7:12
   
       bb0: {
-          StorageLive(_1);                 // bb0[0]: scope 0 at $DIR/switch_int.rs:7:11: 7:12
-          _1 = const 1i32;                 // bb0[1]: scope 0 at $DIR/switch_int.rs:7:11: 7:12
+          StorageLive(_1);                 // scope 0 at $DIR/switch_int.rs:7:11: 7:12
+          _1 = const 1i32;                 // scope 0 at $DIR/switch_int.rs:7:11: 7:12
                                            // ty::Const
                                            // + ty: i32
                                            // + val: Value(Scalar(0x00000001))
                                            // mir::Constant
                                            // + span: $DIR/switch_int.rs:7:11: 7:12
                                            // + literal: Const { ty: i32, val: Value(Scalar(0x00000001)) }
--         switchInt(const 1i32) -> [1i32: bb2, otherwise: bb1]; // bb0[2]: scope 0 at $DIR/switch_int.rs:8:9: 8:10
+-         switchInt(const 1i32) -> [1i32: bb2, otherwise: bb1]; // scope 0 at $DIR/switch_int.rs:8:9: 8:10
 -                                          // ty::Const
 -                                          // + ty: i32
 -                                          // + val: Value(Scalar(0x00000001))
 -                                          // mir::Constant
 -                                          // + span: $DIR/switch_int.rs:8:9: 8:10
 -                                          // + literal: Const { ty: i32, val: Value(Scalar(0x00000001)) }
-+         goto -> bb2;                     // bb0[2]: scope 0 at $DIR/switch_int.rs:8:9: 8:10
++         goto -> bb2;                     // scope 0 at $DIR/switch_int.rs:8:9: 8:10
       }
   
       bb1: {
-          _0 = const foo(const -1i32) -> bb3; // bb1[0]: scope 0 at $DIR/switch_int.rs:9:14: 9:21
+          _0 = const foo(const -1i32) -> bb3; // scope 0 at $DIR/switch_int.rs:9:14: 9:21
                                            // ty::Const
                                            // + ty: fn(i32) {foo}
                                            // + val: Value(Scalar(<ZST>))
@@ -41,7 +41,7 @@
       }
   
       bb2: {
-          _0 = const foo(const 0i32) -> bb3; // bb2[0]: scope 0 at $DIR/switch_int.rs:8:14: 8:20
+          _0 = const foo(const 0i32) -> bb3; // scope 0 at $DIR/switch_int.rs:8:14: 8:20
                                            // ty::Const
                                            // + ty: fn(i32) {foo}
                                            // + val: Value(Scalar(<ZST>))
@@ -57,8 +57,8 @@
       }
   
       bb3: {
-          StorageDead(_1);                 // bb3[0]: scope 0 at $DIR/switch_int.rs:11:1: 11:2
-          return;                          // bb3[1]: scope 0 at $DIR/switch_int.rs:11:2: 11:2
+          StorageDead(_1);                 // scope 0 at $DIR/switch_int.rs:11:1: 11:2
+          return;                          // scope 0 at $DIR/switch_int.rs:11:2: 11:2
       }
   }
   
diff --git a/src/test/mir-opt/copy_propagation/rustc.test.CopyPropagation.diff b/src/test/mir-opt/copy_propagation/rustc.test.CopyPropagation.diff
index 4e9d4c56cd6..f2838638aca 100644
--- a/src/test/mir-opt/copy_propagation/rustc.test.CopyPropagation.diff
+++ b/src/test/mir-opt/copy_propagation/rustc.test.CopyPropagation.diff
@@ -11,15 +11,15 @@
       }
   
       bb0: {
--         StorageLive(_2);                 // bb0[0]: scope 0 at $DIR/copy_propagation.rs:4:9: 4:10
--         _2 = _1;                         // bb0[1]: scope 0 at $DIR/copy_propagation.rs:4:13: 4:14
--         _0 = _2;                         // bb0[2]: scope 1 at $DIR/copy_propagation.rs:5:5: 5:6
--         StorageDead(_2);                 // bb0[3]: scope 0 at $DIR/copy_propagation.rs:6:1: 6:2
-+         nop;                             // bb0[0]: scope 0 at $DIR/copy_propagation.rs:4:9: 4:10
-+         nop;                             // bb0[1]: scope 0 at $DIR/copy_propagation.rs:4:13: 4:14
-+         _0 = _1;                         // bb0[2]: scope 1 at $DIR/copy_propagation.rs:5:5: 5:6
-+         nop;                             // bb0[3]: scope 0 at $DIR/copy_propagation.rs:6:1: 6:2
-          return;                          // bb0[4]: scope 0 at $DIR/copy_propagation.rs:6:2: 6:2
+-         StorageLive(_2);                 // scope 0 at $DIR/copy_propagation.rs:4:9: 4:10
+-         _2 = _1;                         // scope 0 at $DIR/copy_propagation.rs:4:13: 4:14
+-         _0 = _2;                         // scope 1 at $DIR/copy_propagation.rs:5:5: 5:6
+-         StorageDead(_2);                 // scope 0 at $DIR/copy_propagation.rs:6:1: 6:2
++         nop;                             // scope 0 at $DIR/copy_propagation.rs:4:9: 4:10
++         nop;                             // scope 0 at $DIR/copy_propagation.rs:4:13: 4:14
++         _0 = _1;                         // scope 1 at $DIR/copy_propagation.rs:5:5: 5:6
++         nop;                             // scope 0 at $DIR/copy_propagation.rs:6:1: 6:2
+          return;                          // scope 0 at $DIR/copy_propagation.rs:6:2: 6:2
       }
   }
   
diff --git a/src/test/mir-opt/copy_propagation_arg/rustc.arg_src.CopyPropagation.diff b/src/test/mir-opt/copy_propagation_arg/rustc.arg_src.CopyPropagation.diff
index db3f588d999..b976449ca6d 100644
--- a/src/test/mir-opt/copy_propagation_arg/rustc.arg_src.CopyPropagation.diff
+++ b/src/test/mir-opt/copy_propagation_arg/rustc.arg_src.CopyPropagation.diff
@@ -10,18 +10,18 @@
       }
   
       bb0: {
-          StorageLive(_2);                 // bb0[0]: scope 0 at $DIR/copy_propagation_arg.rs:28:9: 28:10
-          _2 = _1;                         // bb0[1]: scope 0 at $DIR/copy_propagation_arg.rs:28:13: 28:14
-          _1 = const 123i32;               // bb0[2]: scope 1 at $DIR/copy_propagation_arg.rs:29:5: 29:12
+          StorageLive(_2);                 // scope 0 at $DIR/copy_propagation_arg.rs:28:9: 28:10
+          _2 = _1;                         // scope 0 at $DIR/copy_propagation_arg.rs:28:13: 28:14
+          _1 = const 123i32;               // scope 1 at $DIR/copy_propagation_arg.rs:29:5: 29:12
                                            // ty::Const
                                            // + ty: i32
                                            // + val: Value(Scalar(0x0000007b))
                                            // mir::Constant
                                            // + span: $DIR/copy_propagation_arg.rs:29:5: 29:12
                                            // + literal: Const { ty: i32, val: Value(Scalar(0x0000007b)) }
-          _0 = _2;                         // bb0[3]: scope 1 at $DIR/copy_propagation_arg.rs:30:5: 30:6
-          StorageDead(_2);                 // bb0[4]: scope 0 at $DIR/copy_propagation_arg.rs:31:1: 31:2
-          return;                          // bb0[5]: scope 0 at $DIR/copy_propagation_arg.rs:31:2: 31:2
+          _0 = _2;                         // scope 1 at $DIR/copy_propagation_arg.rs:30:5: 30:6
+          StorageDead(_2);                 // scope 0 at $DIR/copy_propagation_arg.rs:31:1: 31:2
+          return;                          // scope 0 at $DIR/copy_propagation_arg.rs:31:2: 31:2
       }
   }
   
diff --git a/src/test/mir-opt/copy_propagation_arg/rustc.bar.CopyPropagation.diff b/src/test/mir-opt/copy_propagation_arg/rustc.bar.CopyPropagation.diff
index 16bdb7d0a99..26f8068f674 100644
--- a/src/test/mir-opt/copy_propagation_arg/rustc.bar.CopyPropagation.diff
+++ b/src/test/mir-opt/copy_propagation_arg/rustc.bar.CopyPropagation.diff
@@ -8,10 +8,10 @@
       let mut _3: u8;                      // in scope 0 at $DIR/copy_propagation_arg.rs:16:11: 16:12
   
       bb0: {
-          StorageLive(_2);                 // bb0[0]: scope 0 at $DIR/copy_propagation_arg.rs:16:5: 16:13
-          StorageLive(_3);                 // bb0[1]: scope 0 at $DIR/copy_propagation_arg.rs:16:11: 16:12
-          _3 = _1;                         // bb0[2]: scope 0 at $DIR/copy_propagation_arg.rs:16:11: 16:12
-          _2 = const dummy(move _3) -> bb1; // bb0[3]: scope 0 at $DIR/copy_propagation_arg.rs:16:5: 16:13
+          StorageLive(_2);                 // scope 0 at $DIR/copy_propagation_arg.rs:16:5: 16:13
+          StorageLive(_3);                 // scope 0 at $DIR/copy_propagation_arg.rs:16:11: 16:12
+          _3 = _1;                         // scope 0 at $DIR/copy_propagation_arg.rs:16:11: 16:12
+          _2 = const dummy(move _3) -> bb1; // scope 0 at $DIR/copy_propagation_arg.rs:16:5: 16:13
                                            // ty::Const
                                            // + ty: fn(u8) -> u8 {dummy}
                                            // + val: Value(Scalar(<ZST>))
@@ -21,23 +21,23 @@
       }
   
       bb1: {
-          StorageDead(_3);                 // bb1[0]: scope 0 at $DIR/copy_propagation_arg.rs:16:12: 16:13
-          StorageDead(_2);                 // bb1[1]: scope 0 at $DIR/copy_propagation_arg.rs:16:13: 16:14
-          _1 = const 5u8;                  // bb1[2]: scope 0 at $DIR/copy_propagation_arg.rs:17:5: 17:10
+          StorageDead(_3);                 // scope 0 at $DIR/copy_propagation_arg.rs:16:12: 16:13
+          StorageDead(_2);                 // scope 0 at $DIR/copy_propagation_arg.rs:16:13: 16:14
+          _1 = const 5u8;                  // scope 0 at $DIR/copy_propagation_arg.rs:17:5: 17:10
                                            // ty::Const
                                            // + ty: u8
                                            // + val: Value(Scalar(0x05))
                                            // mir::Constant
                                            // + span: $DIR/copy_propagation_arg.rs:17:5: 17:10
                                            // + literal: Const { ty: u8, val: Value(Scalar(0x05)) }
-          _0 = const ();                   // bb1[3]: scope 0 at $DIR/copy_propagation_arg.rs:15:19: 18:2
+          _0 = const ();                   // scope 0 at $DIR/copy_propagation_arg.rs:15:19: 18:2
                                            // ty::Const
                                            // + ty: ()
                                            // + val: Value(Scalar(<ZST>))
                                            // mir::Constant
                                            // + span: $DIR/copy_propagation_arg.rs:15:19: 18:2
                                            // + literal: Const { ty: (), val: Value(Scalar(<ZST>)) }
-          return;                          // bb1[4]: scope 0 at $DIR/copy_propagation_arg.rs:18:2: 18:2
+          return;                          // scope 0 at $DIR/copy_propagation_arg.rs:18:2: 18:2
       }
   }
   
diff --git a/src/test/mir-opt/copy_propagation_arg/rustc.baz.CopyPropagation.diff b/src/test/mir-opt/copy_propagation_arg/rustc.baz.CopyPropagation.diff
index 7df995c990a..ee20553f7cc 100644
--- a/src/test/mir-opt/copy_propagation_arg/rustc.baz.CopyPropagation.diff
+++ b/src/test/mir-opt/copy_propagation_arg/rustc.baz.CopyPropagation.diff
@@ -7,18 +7,18 @@
       let mut _2: i32;                     // in scope 0 at $DIR/copy_propagation_arg.rs:23:9: 23:10
   
       bb0: {
-          StorageLive(_2);                 // bb0[0]: scope 0 at $DIR/copy_propagation_arg.rs:23:9: 23:10
-          _2 = _1;                         // bb0[1]: scope 0 at $DIR/copy_propagation_arg.rs:23:9: 23:10
-          _1 = move _2;                    // bb0[2]: scope 0 at $DIR/copy_propagation_arg.rs:23:5: 23:10
-          StorageDead(_2);                 // bb0[3]: scope 0 at $DIR/copy_propagation_arg.rs:23:9: 23:10
-          _0 = const ();                   // bb0[4]: scope 0 at $DIR/copy_propagation_arg.rs:21:20: 24:2
+          StorageLive(_2);                 // scope 0 at $DIR/copy_propagation_arg.rs:23:9: 23:10
+          _2 = _1;                         // scope 0 at $DIR/copy_propagation_arg.rs:23:9: 23:10
+          _1 = move _2;                    // scope 0 at $DIR/copy_propagation_arg.rs:23:5: 23:10
+          StorageDead(_2);                 // scope 0 at $DIR/copy_propagation_arg.rs:23:9: 23:10
+          _0 = const ();                   // scope 0 at $DIR/copy_propagation_arg.rs:21:20: 24:2
                                            // ty::Const
                                            // + ty: ()
                                            // + val: Value(Scalar(<ZST>))
                                            // mir::Constant
                                            // + span: $DIR/copy_propagation_arg.rs:21:20: 24:2
                                            // + literal: Const { ty: (), val: Value(Scalar(<ZST>)) }
-          return;                          // bb0[5]: scope 0 at $DIR/copy_propagation_arg.rs:24:2: 24:2
+          return;                          // scope 0 at $DIR/copy_propagation_arg.rs:24:2: 24:2
       }
   }
   
diff --git a/src/test/mir-opt/copy_propagation_arg/rustc.foo.CopyPropagation.diff b/src/test/mir-opt/copy_propagation_arg/rustc.foo.CopyPropagation.diff
index 67b58c30f05..33aaa748678 100644
--- a/src/test/mir-opt/copy_propagation_arg/rustc.foo.CopyPropagation.diff
+++ b/src/test/mir-opt/copy_propagation_arg/rustc.foo.CopyPropagation.diff
@@ -8,10 +8,10 @@
       let mut _3: u8;                      // in scope 0 at $DIR/copy_propagation_arg.rs:11:15: 11:16
   
       bb0: {
-          StorageLive(_2);                 // bb0[0]: scope 0 at $DIR/copy_propagation_arg.rs:11:9: 11:17
-          StorageLive(_3);                 // bb0[1]: scope 0 at $DIR/copy_propagation_arg.rs:11:15: 11:16
-          _3 = _1;                         // bb0[2]: scope 0 at $DIR/copy_propagation_arg.rs:11:15: 11:16
-          _2 = const dummy(move _3) -> bb1; // bb0[3]: scope 0 at $DIR/copy_propagation_arg.rs:11:9: 11:17
+          StorageLive(_2);                 // scope 0 at $DIR/copy_propagation_arg.rs:11:9: 11:17
+          StorageLive(_3);                 // scope 0 at $DIR/copy_propagation_arg.rs:11:15: 11:16
+          _3 = _1;                         // scope 0 at $DIR/copy_propagation_arg.rs:11:15: 11:16
+          _2 = const dummy(move _3) -> bb1; // scope 0 at $DIR/copy_propagation_arg.rs:11:9: 11:17
                                            // ty::Const
                                            // + ty: fn(u8) -> u8 {dummy}
                                            // + val: Value(Scalar(<ZST>))
@@ -21,17 +21,17 @@
       }
   
       bb1: {
-          StorageDead(_3);                 // bb1[0]: scope 0 at $DIR/copy_propagation_arg.rs:11:16: 11:17
-          _1 = move _2;                    // bb1[1]: scope 0 at $DIR/copy_propagation_arg.rs:11:5: 11:17
-          StorageDead(_2);                 // bb1[2]: scope 0 at $DIR/copy_propagation_arg.rs:11:16: 11:17
-          _0 = const ();                   // bb1[3]: scope 0 at $DIR/copy_propagation_arg.rs:9:19: 12:2
+          StorageDead(_3);                 // scope 0 at $DIR/copy_propagation_arg.rs:11:16: 11:17
+          _1 = move _2;                    // scope 0 at $DIR/copy_propagation_arg.rs:11:5: 11:17
+          StorageDead(_2);                 // scope 0 at $DIR/copy_propagation_arg.rs:11:16: 11:17
+          _0 = const ();                   // scope 0 at $DIR/copy_propagation_arg.rs:9:19: 12:2
                                            // ty::Const
                                            // + ty: ()
                                            // + val: Value(Scalar(<ZST>))
                                            // mir::Constant
                                            // + span: $DIR/copy_propagation_arg.rs:9:19: 12:2
                                            // + literal: Const { ty: (), val: Value(Scalar(<ZST>)) }
-          return;                          // bb1[4]: scope 0 at $DIR/copy_propagation_arg.rs:12:2: 12:2
+          return;                          // scope 0 at $DIR/copy_propagation_arg.rs:12:2: 12:2
       }
   }
   
diff --git a/src/test/mir-opt/deaggregator_test/rustc.bar.Deaggregator.diff b/src/test/mir-opt/deaggregator_test/rustc.bar.Deaggregator.diff
index 082f05a50c1..524156e0b92 100644
--- a/src/test/mir-opt/deaggregator_test/rustc.bar.Deaggregator.diff
+++ b/src/test/mir-opt/deaggregator_test/rustc.bar.Deaggregator.diff
@@ -7,28 +7,26 @@
       let mut _2: usize;                   // in scope 0 at $DIR/deaggregator_test.rs:9:14: 9:15
   
       bb0: {
-          StorageLive(_2);                 // bb0[0]: scope 0 at $DIR/deaggregator_test.rs:9:14: 9:15
-          _2 = _1;                         // bb0[1]: scope 0 at $DIR/deaggregator_test.rs:9:14: 9:15
--         _0 = Baz { x: move _2, y: const 0f32, z: const false }; // bb0[2]: scope 0 at $DIR/deaggregator_test.rs:9:5: 9:35
-+         (_0.0: usize) = move _2;         // bb0[2]: scope 0 at $DIR/deaggregator_test.rs:9:5: 9:35
-+         (_0.1: f32) = const 0f32;        // bb0[3]: scope 0 at $DIR/deaggregator_test.rs:9:5: 9:35
+          StorageLive(_2);                 // scope 0 at $DIR/deaggregator_test.rs:9:14: 9:15
+          _2 = _1;                         // scope 0 at $DIR/deaggregator_test.rs:9:14: 9:15
+-         _0 = Baz { x: move _2, y: const 0f32, z: const false }; // scope 0 at $DIR/deaggregator_test.rs:9:5: 9:35
++         (_0.0: usize) = move _2;         // scope 0 at $DIR/deaggregator_test.rs:9:5: 9:35
++         (_0.1: f32) = const 0f32;        // scope 0 at $DIR/deaggregator_test.rs:9:5: 9:35
                                            // ty::Const
                                            // + ty: f32
                                            // + val: Value(Scalar(0x00000000))
                                            // mir::Constant
                                            // + span: $DIR/deaggregator_test.rs:9:20: 9:23
                                            // + literal: Const { ty: f32, val: Value(Scalar(0x00000000)) }
-+         (_0.2: bool) = const false;      // bb0[4]: scope 0 at $DIR/deaggregator_test.rs:9:5: 9:35
++         (_0.2: bool) = const false;      // scope 0 at $DIR/deaggregator_test.rs:9:5: 9:35
                                            // ty::Const
                                            // + ty: bool
                                            // + val: Value(Scalar(0x00))
                                            // mir::Constant
                                            // + span: $DIR/deaggregator_test.rs:9:28: 9:33
                                            // + literal: Const { ty: bool, val: Value(Scalar(0x00)) }
--         StorageDead(_2);                 // bb0[3]: scope 0 at $DIR/deaggregator_test.rs:9:34: 9:35
--         return;                          // bb0[4]: scope 0 at $DIR/deaggregator_test.rs:10:2: 10:2
-+         StorageDead(_2);                 // bb0[5]: scope 0 at $DIR/deaggregator_test.rs:9:34: 9:35
-+         return;                          // bb0[6]: scope 0 at $DIR/deaggregator_test.rs:10:2: 10:2
+          StorageDead(_2);                 // scope 0 at $DIR/deaggregator_test.rs:9:34: 9:35
+          return;                          // scope 0 at $DIR/deaggregator_test.rs:10:2: 10:2
       }
   }
   
diff --git a/src/test/mir-opt/deaggregator_test_enum/rustc.bar.Deaggregator.diff b/src/test/mir-opt/deaggregator_test_enum/rustc.bar.Deaggregator.diff
index b1839ef7e0e..5af9a536693 100644
--- a/src/test/mir-opt/deaggregator_test_enum/rustc.bar.Deaggregator.diff
+++ b/src/test/mir-opt/deaggregator_test_enum/rustc.bar.Deaggregator.diff
@@ -7,15 +7,13 @@
       let mut _2: usize;                   // in scope 0 at $DIR/deaggregator_test_enum.rs:8:19: 8:20
   
       bb0: {
-          StorageLive(_2);                 // bb0[0]: scope 0 at $DIR/deaggregator_test_enum.rs:8:19: 8:20
-          _2 = _1;                         // bb0[1]: scope 0 at $DIR/deaggregator_test_enum.rs:8:19: 8:20
--         _0 = Baz::Foo { x: move _2 };    // bb0[2]: scope 0 at $DIR/deaggregator_test_enum.rs:8:5: 8:22
--         StorageDead(_2);                 // bb0[3]: scope 0 at $DIR/deaggregator_test_enum.rs:8:21: 8:22
--         return;                          // bb0[4]: scope 0 at $DIR/deaggregator_test_enum.rs:9:2: 9:2
-+         ((_0 as Foo).0: usize) = move _2; // bb0[2]: scope 0 at $DIR/deaggregator_test_enum.rs:8:5: 8:22
-+         discriminant(_0) = 1;            // bb0[3]: scope 0 at $DIR/deaggregator_test_enum.rs:8:5: 8:22
-+         StorageDead(_2);                 // bb0[4]: scope 0 at $DIR/deaggregator_test_enum.rs:8:21: 8:22
-+         return;                          // bb0[5]: scope 0 at $DIR/deaggregator_test_enum.rs:9:2: 9:2
+          StorageLive(_2);                 // scope 0 at $DIR/deaggregator_test_enum.rs:8:19: 8:20
+          _2 = _1;                         // scope 0 at $DIR/deaggregator_test_enum.rs:8:19: 8:20
+-         _0 = Baz::Foo { x: move _2 };    // scope 0 at $DIR/deaggregator_test_enum.rs:8:5: 8:22
++         ((_0 as Foo).0: usize) = move _2; // scope 0 at $DIR/deaggregator_test_enum.rs:8:5: 8:22
++         discriminant(_0) = 1;            // scope 0 at $DIR/deaggregator_test_enum.rs:8:5: 8:22
+          StorageDead(_2);                 // scope 0 at $DIR/deaggregator_test_enum.rs:8:21: 8:22
+          return;                          // scope 0 at $DIR/deaggregator_test_enum.rs:9:2: 9:2
       }
   }
   
diff --git a/src/test/mir-opt/deaggregator_test_enum_2/rustc.test1.Deaggregator.diff b/src/test/mir-opt/deaggregator_test_enum_2/rustc.test1.Deaggregator.diff
index 3256e59e3eb..bf99f7efb4d 100644
--- a/src/test/mir-opt/deaggregator_test_enum_2/rustc.test1.Deaggregator.diff
+++ b/src/test/mir-opt/deaggregator_test_enum_2/rustc.test1.Deaggregator.diff
@@ -10,38 +10,34 @@
       let mut _5: i32;                     // in scope 0 at $DIR/deaggregator_test_enum_2.rs:13:16: 13:17
   
       bb0: {
-          StorageLive(_3);                 // bb0[0]: scope 0 at $DIR/deaggregator_test_enum_2.rs:10:8: 10:9
-          _3 = _1;                         // bb0[1]: scope 0 at $DIR/deaggregator_test_enum_2.rs:10:8: 10:9
-          switchInt(_3) -> [false: bb1, otherwise: bb2]; // bb0[2]: scope 0 at $DIR/deaggregator_test_enum_2.rs:10:5: 14:6
+          StorageLive(_3);                 // scope 0 at $DIR/deaggregator_test_enum_2.rs:10:8: 10:9
+          _3 = _1;                         // scope 0 at $DIR/deaggregator_test_enum_2.rs:10:8: 10:9
+          switchInt(_3) -> [false: bb1, otherwise: bb2]; // scope 0 at $DIR/deaggregator_test_enum_2.rs:10:5: 14:6
       }
   
       bb1: {
-          StorageLive(_5);                 // bb1[0]: scope 0 at $DIR/deaggregator_test_enum_2.rs:13:16: 13:17
-          _5 = _2;                         // bb1[1]: scope 0 at $DIR/deaggregator_test_enum_2.rs:13:16: 13:17
--         _0 = Foo::B(move _5);            // bb1[2]: scope 0 at $DIR/deaggregator_test_enum_2.rs:13:9: 13:18
--         StorageDead(_5);                 // bb1[3]: scope 0 at $DIR/deaggregator_test_enum_2.rs:13:17: 13:18
--         goto -> bb3;                     // bb1[4]: scope 0 at $DIR/deaggregator_test_enum_2.rs:10:5: 14:6
-+         ((_0 as B).0: i32) = move _5;    // bb1[2]: scope 0 at $DIR/deaggregator_test_enum_2.rs:13:9: 13:18
-+         discriminant(_0) = 1;            // bb1[3]: scope 0 at $DIR/deaggregator_test_enum_2.rs:13:9: 13:18
-+         StorageDead(_5);                 // bb1[4]: scope 0 at $DIR/deaggregator_test_enum_2.rs:13:17: 13:18
-+         goto -> bb3;                     // bb1[5]: scope 0 at $DIR/deaggregator_test_enum_2.rs:10:5: 14:6
+          StorageLive(_5);                 // scope 0 at $DIR/deaggregator_test_enum_2.rs:13:16: 13:17
+          _5 = _2;                         // scope 0 at $DIR/deaggregator_test_enum_2.rs:13:16: 13:17
+-         _0 = Foo::B(move _5);            // scope 0 at $DIR/deaggregator_test_enum_2.rs:13:9: 13:18
++         ((_0 as B).0: i32) = move _5;    // scope 0 at $DIR/deaggregator_test_enum_2.rs:13:9: 13:18
++         discriminant(_0) = 1;            // scope 0 at $DIR/deaggregator_test_enum_2.rs:13:9: 13:18
+          StorageDead(_5);                 // scope 0 at $DIR/deaggregator_test_enum_2.rs:13:17: 13:18
+          goto -> bb3;                     // scope 0 at $DIR/deaggregator_test_enum_2.rs:10:5: 14:6
       }
   
       bb2: {
-          StorageLive(_4);                 // bb2[0]: scope 0 at $DIR/deaggregator_test_enum_2.rs:11:16: 11:17
-          _4 = _2;                         // bb2[1]: scope 0 at $DIR/deaggregator_test_enum_2.rs:11:16: 11:17
--         _0 = Foo::A(move _4);            // bb2[2]: scope 0 at $DIR/deaggregator_test_enum_2.rs:11:9: 11:18
--         StorageDead(_4);                 // bb2[3]: scope 0 at $DIR/deaggregator_test_enum_2.rs:11:17: 11:18
--         goto -> bb3;                     // bb2[4]: scope 0 at $DIR/deaggregator_test_enum_2.rs:10:5: 14:6
-+         ((_0 as A).0: i32) = move _4;    // bb2[2]: scope 0 at $DIR/deaggregator_test_enum_2.rs:11:9: 11:18
-+         discriminant(_0) = 0;            // bb2[3]: scope 0 at $DIR/deaggregator_test_enum_2.rs:11:9: 11:18
-+         StorageDead(_4);                 // bb2[4]: scope 0 at $DIR/deaggregator_test_enum_2.rs:11:17: 11:18
-+         goto -> bb3;                     // bb2[5]: scope 0 at $DIR/deaggregator_test_enum_2.rs:10:5: 14:6
+          StorageLive(_4);                 // scope 0 at $DIR/deaggregator_test_enum_2.rs:11:16: 11:17
+          _4 = _2;                         // scope 0 at $DIR/deaggregator_test_enum_2.rs:11:16: 11:17
+-         _0 = Foo::A(move _4);            // scope 0 at $DIR/deaggregator_test_enum_2.rs:11:9: 11:18
++         ((_0 as A).0: i32) = move _4;    // scope 0 at $DIR/deaggregator_test_enum_2.rs:11:9: 11:18
++         discriminant(_0) = 0;            // scope 0 at $DIR/deaggregator_test_enum_2.rs:11:9: 11:18
+          StorageDead(_4);                 // scope 0 at $DIR/deaggregator_test_enum_2.rs:11:17: 11:18
+          goto -> bb3;                     // scope 0 at $DIR/deaggregator_test_enum_2.rs:10:5: 14:6
       }
   
       bb3: {
-          StorageDead(_3);                 // bb3[0]: scope 0 at $DIR/deaggregator_test_enum_2.rs:15:1: 15:2
-          return;                          // bb3[1]: scope 0 at $DIR/deaggregator_test_enum_2.rs:15:2: 15:2
+          StorageDead(_3);                 // scope 0 at $DIR/deaggregator_test_enum_2.rs:15:1: 15:2
+          return;                          // scope 0 at $DIR/deaggregator_test_enum_2.rs:15:2: 15:2
       }
   }
   
diff --git a/src/test/mir-opt/deaggregator_test_multiple/rustc.test.Deaggregator.diff b/src/test/mir-opt/deaggregator_test_multiple/rustc.test.Deaggregator.diff
index 7d3ae6a16b2..f5d8d0607c6 100644
--- a/src/test/mir-opt/deaggregator_test_multiple/rustc.test.Deaggregator.diff
+++ b/src/test/mir-opt/deaggregator_test_multiple/rustc.test.Deaggregator.diff
@@ -10,33 +10,24 @@
       let mut _5: i32;                     // in scope 0 at $DIR/deaggregator_test_multiple.rs:10:24: 10:25
   
       bb0: {
-          StorageLive(_2);                 // bb0[0]: scope 0 at $DIR/deaggregator_test_multiple.rs:10:6: 10:15
-          StorageLive(_3);                 // bb0[1]: scope 0 at $DIR/deaggregator_test_multiple.rs:10:13: 10:14
-          _3 = _1;                         // bb0[2]: scope 0 at $DIR/deaggregator_test_multiple.rs:10:13: 10:14
--         _2 = Foo::A(move _3);            // bb0[3]: scope 0 at $DIR/deaggregator_test_multiple.rs:10:6: 10:15
--         StorageDead(_3);                 // bb0[4]: scope 0 at $DIR/deaggregator_test_multiple.rs:10:14: 10:15
--         StorageLive(_4);                 // bb0[5]: scope 0 at $DIR/deaggregator_test_multiple.rs:10:17: 10:26
--         StorageLive(_5);                 // bb0[6]: scope 0 at $DIR/deaggregator_test_multiple.rs:10:24: 10:25
--         _5 = _1;                         // bb0[7]: scope 0 at $DIR/deaggregator_test_multiple.rs:10:24: 10:25
--         _4 = Foo::A(move _5);            // bb0[8]: scope 0 at $DIR/deaggregator_test_multiple.rs:10:17: 10:26
--         StorageDead(_5);                 // bb0[9]: scope 0 at $DIR/deaggregator_test_multiple.rs:10:25: 10:26
--         _0 = [move _2, move _4];         // bb0[10]: scope 0 at $DIR/deaggregator_test_multiple.rs:10:5: 10:27
--         StorageDead(_4);                 // bb0[11]: scope 0 at $DIR/deaggregator_test_multiple.rs:10:26: 10:27
--         StorageDead(_2);                 // bb0[12]: scope 0 at $DIR/deaggregator_test_multiple.rs:10:26: 10:27
--         return;                          // bb0[13]: scope 0 at $DIR/deaggregator_test_multiple.rs:11:2: 11:2
-+         ((_2 as A).0: i32) = move _3;    // bb0[3]: scope 0 at $DIR/deaggregator_test_multiple.rs:10:6: 10:15
-+         discriminant(_2) = 0;            // bb0[4]: scope 0 at $DIR/deaggregator_test_multiple.rs:10:6: 10:15
-+         StorageDead(_3);                 // bb0[5]: scope 0 at $DIR/deaggregator_test_multiple.rs:10:14: 10:15
-+         StorageLive(_4);                 // bb0[6]: scope 0 at $DIR/deaggregator_test_multiple.rs:10:17: 10:26
-+         StorageLive(_5);                 // bb0[7]: scope 0 at $DIR/deaggregator_test_multiple.rs:10:24: 10:25
-+         _5 = _1;                         // bb0[8]: scope 0 at $DIR/deaggregator_test_multiple.rs:10:24: 10:25
-+         ((_4 as A).0: i32) = move _5;    // bb0[9]: scope 0 at $DIR/deaggregator_test_multiple.rs:10:17: 10:26
-+         discriminant(_4) = 0;            // bb0[10]: scope 0 at $DIR/deaggregator_test_multiple.rs:10:17: 10:26
-+         StorageDead(_5);                 // bb0[11]: scope 0 at $DIR/deaggregator_test_multiple.rs:10:25: 10:26
-+         _0 = [move _2, move _4];         // bb0[12]: scope 0 at $DIR/deaggregator_test_multiple.rs:10:5: 10:27
-+         StorageDead(_4);                 // bb0[13]: scope 0 at $DIR/deaggregator_test_multiple.rs:10:26: 10:27
-+         StorageDead(_2);                 // bb0[14]: scope 0 at $DIR/deaggregator_test_multiple.rs:10:26: 10:27
-+         return;                          // bb0[15]: scope 0 at $DIR/deaggregator_test_multiple.rs:11:2: 11:2
+          StorageLive(_2);                 // scope 0 at $DIR/deaggregator_test_multiple.rs:10:6: 10:15
+          StorageLive(_3);                 // scope 0 at $DIR/deaggregator_test_multiple.rs:10:13: 10:14
+          _3 = _1;                         // scope 0 at $DIR/deaggregator_test_multiple.rs:10:13: 10:14
+-         _2 = Foo::A(move _3);            // scope 0 at $DIR/deaggregator_test_multiple.rs:10:6: 10:15
++         ((_2 as A).0: i32) = move _3;    // scope 0 at $DIR/deaggregator_test_multiple.rs:10:6: 10:15
++         discriminant(_2) = 0;            // scope 0 at $DIR/deaggregator_test_multiple.rs:10:6: 10:15
+          StorageDead(_3);                 // scope 0 at $DIR/deaggregator_test_multiple.rs:10:14: 10:15
+          StorageLive(_4);                 // scope 0 at $DIR/deaggregator_test_multiple.rs:10:17: 10:26
+          StorageLive(_5);                 // scope 0 at $DIR/deaggregator_test_multiple.rs:10:24: 10:25
+          _5 = _1;                         // scope 0 at $DIR/deaggregator_test_multiple.rs:10:24: 10:25
+-         _4 = Foo::A(move _5);            // scope 0 at $DIR/deaggregator_test_multiple.rs:10:17: 10:26
++         ((_4 as A).0: i32) = move _5;    // scope 0 at $DIR/deaggregator_test_multiple.rs:10:17: 10:26
++         discriminant(_4) = 0;            // scope 0 at $DIR/deaggregator_test_multiple.rs:10:17: 10:26
+          StorageDead(_5);                 // scope 0 at $DIR/deaggregator_test_multiple.rs:10:25: 10:26
+          _0 = [move _2, move _4];         // scope 0 at $DIR/deaggregator_test_multiple.rs:10:5: 10:27
+          StorageDead(_4);                 // scope 0 at $DIR/deaggregator_test_multiple.rs:10:26: 10:27
+          StorageDead(_2);                 // scope 0 at $DIR/deaggregator_test_multiple.rs:10:26: 10:27
+          return;                          // scope 0 at $DIR/deaggregator_test_multiple.rs:11:2: 11:2
       }
   }
   
diff --git a/src/test/mir-opt/exponential-or/rustc.match_tuple.SimplifyCfg-initial.after.mir b/src/test/mir-opt/exponential-or/rustc.match_tuple.SimplifyCfg-initial.after.mir
index 192ec1bbe21..03d258d8f72 100644
--- a/src/test/mir-opt/exponential-or/rustc.match_tuple.SimplifyCfg-initial.after.mir
+++ b/src/test/mir-opt/exponential-or/rustc.match_tuple.SimplifyCfg-initial.after.mir
@@ -18,96 +18,96 @@ fn match_tuple(_1: (u32, bool, std::option::Option<i32>, u32)) -> u32 {
     }
 
     bb0: {
-        FakeRead(ForMatchedPlace, _1);   // bb0[0]: scope 0 at $DIR/exponential-or.rs:7:11: 7:12
-        switchInt((_1.0: u32)) -> [1u32: bb2, 4u32: bb2, otherwise: bb1]; // bb0[1]: scope 0 at $DIR/exponential-or.rs:8:15: 8:16
+        FakeRead(ForMatchedPlace, _1);   // scope 0 at $DIR/exponential-or.rs:7:11: 7:12
+        switchInt((_1.0: u32)) -> [1u32: bb2, 4u32: bb2, otherwise: bb1]; // scope 0 at $DIR/exponential-or.rs:8:15: 8:16
     }
 
     bb1: {
-        _0 = const 0u32;                 // bb1[0]: scope 0 at $DIR/exponential-or.rs:9:14: 9:15
+        _0 = const 0u32;                 // scope 0 at $DIR/exponential-or.rs:9:14: 9:15
                                          // ty::Const
                                          // + ty: u32
                                          // + val: Value(Scalar(0x00000000))
                                          // mir::Constant
                                          // + span: $DIR/exponential-or.rs:9:14: 9:15
                                          // + literal: Const { ty: u32, val: Value(Scalar(0x00000000)) }
-        goto -> bb10;                    // bb1[1]: scope 0 at $DIR/exponential-or.rs:7:5: 10:6
+        goto -> bb10;                    // scope 0 at $DIR/exponential-or.rs:7:5: 10:6
     }
 
     bb2: {
-        _2 = discriminant((_1.2: std::option::Option<i32>)); // bb2[0]: scope 0 at $DIR/exponential-or.rs:8:37: 8:48
-        switchInt(move _2) -> [0isize: bb4, 1isize: bb3, otherwise: bb1]; // bb2[1]: scope 0 at $DIR/exponential-or.rs:8:37: 8:48
+        _2 = discriminant((_1.2: std::option::Option<i32>)); // scope 0 at $DIR/exponential-or.rs:8:37: 8:48
+        switchInt(move _2) -> [0isize: bb4, 1isize: bb3, otherwise: bb1]; // scope 0 at $DIR/exponential-or.rs:8:37: 8:48
     }
 
     bb3: {
-        switchInt((((_1.2: std::option::Option<i32>) as Some).0: i32)) -> [1i32: bb4, 8i32: bb4, otherwise: bb1]; // bb3[0]: scope 0 at $DIR/exponential-or.rs:8:42: 8:43
+        switchInt((((_1.2: std::option::Option<i32>) as Some).0: i32)) -> [1i32: bb4, 8i32: bb4, otherwise: bb1]; // scope 0 at $DIR/exponential-or.rs:8:42: 8:43
     }
 
     bb4: {
-        _5 = Le(const 6u32, (_1.3: u32)); // bb4[0]: scope 0 at $DIR/exponential-or.rs:8:62: 8:67
+        _5 = Le(const 6u32, (_1.3: u32)); // scope 0 at $DIR/exponential-or.rs:8:62: 8:67
                                          // ty::Const
                                          // + ty: u32
                                          // + val: Value(Scalar(0x00000006))
                                          // mir::Constant
                                          // + span: $DIR/exponential-or.rs:8:62: 8:67
                                          // + literal: Const { ty: u32, val: Value(Scalar(0x00000006)) }
-        switchInt(move _5) -> [false: bb6, otherwise: bb5]; // bb4[1]: scope 0 at $DIR/exponential-or.rs:8:62: 8:67
+        switchInt(move _5) -> [false: bb6, otherwise: bb5]; // scope 0 at $DIR/exponential-or.rs:8:62: 8:67
     }
 
     bb5: {
-        _6 = Le((_1.3: u32), const 9u32); // bb5[0]: scope 0 at $DIR/exponential-or.rs:8:62: 8:67
+        _6 = Le((_1.3: u32), const 9u32); // scope 0 at $DIR/exponential-or.rs:8:62: 8:67
                                          // ty::Const
                                          // + ty: u32
                                          // + val: Value(Scalar(0x00000009))
                                          // mir::Constant
                                          // + span: $DIR/exponential-or.rs:8:62: 8:67
                                          // + literal: Const { ty: u32, val: Value(Scalar(0x00000009)) }
-        switchInt(move _6) -> [false: bb6, otherwise: bb8]; // bb5[1]: scope 0 at $DIR/exponential-or.rs:8:62: 8:67
+        switchInt(move _6) -> [false: bb6, otherwise: bb8]; // scope 0 at $DIR/exponential-or.rs:8:62: 8:67
     }
 
     bb6: {
-        _3 = Le(const 13u32, (_1.3: u32)); // bb6[0]: scope 0 at $DIR/exponential-or.rs:8:70: 8:77
+        _3 = Le(const 13u32, (_1.3: u32)); // scope 0 at $DIR/exponential-or.rs:8:70: 8:77
                                          // ty::Const
                                          // + ty: u32
                                          // + val: Value(Scalar(0x0000000d))
                                          // mir::Constant
                                          // + span: $DIR/exponential-or.rs:8:70: 8:77
                                          // + literal: Const { ty: u32, val: Value(Scalar(0x0000000d)) }
-        switchInt(move _3) -> [false: bb1, otherwise: bb7]; // bb6[1]: scope 0 at $DIR/exponential-or.rs:8:70: 8:77
+        switchInt(move _3) -> [false: bb1, otherwise: bb7]; // scope 0 at $DIR/exponential-or.rs:8:70: 8:77
     }
 
     bb7: {
-        _4 = Le((_1.3: u32), const 16u32); // bb7[0]: scope 0 at $DIR/exponential-or.rs:8:70: 8:77
+        _4 = Le((_1.3: u32), const 16u32); // scope 0 at $DIR/exponential-or.rs:8:70: 8:77
                                          // ty::Const
                                          // + ty: u32
                                          // + val: Value(Scalar(0x00000010))
                                          // mir::Constant
                                          // + span: $DIR/exponential-or.rs:8:70: 8:77
                                          // + literal: Const { ty: u32, val: Value(Scalar(0x00000010)) }
-        switchInt(move _4) -> [false: bb1, otherwise: bb8]; // bb7[1]: scope 0 at $DIR/exponential-or.rs:8:70: 8:77
+        switchInt(move _4) -> [false: bb1, otherwise: bb8]; // scope 0 at $DIR/exponential-or.rs:8:70: 8:77
     }
 
     bb8: {
-        falseEdges -> [real: bb9, imaginary: bb1]; // bb8[0]: scope 0 at $DIR/exponential-or.rs:8:9: 8:79
+        falseEdges -> [real: bb9, imaginary: bb1]; // scope 0 at $DIR/exponential-or.rs:8:9: 8:79
     }
 
     bb9: {
-        StorageLive(_7);                 // bb9[0]: scope 0 at $DIR/exponential-or.rs:8:10: 8:21
-        _7 = (_1.0: u32);                // bb9[1]: scope 0 at $DIR/exponential-or.rs:8:10: 8:21
-        StorageLive(_8);                 // bb9[2]: scope 0 at $DIR/exponential-or.rs:8:57: 8:78
-        _8 = (_1.3: u32);                // bb9[3]: scope 0 at $DIR/exponential-or.rs:8:57: 8:78
-        StorageLive(_9);                 // bb9[4]: scope 1 at $DIR/exponential-or.rs:8:83: 8:84
-        _9 = _7;                         // bb9[5]: scope 1 at $DIR/exponential-or.rs:8:83: 8:84
-        StorageLive(_10);                // bb9[6]: scope 1 at $DIR/exponential-or.rs:8:87: 8:88
-        _10 = _8;                        // bb9[7]: scope 1 at $DIR/exponential-or.rs:8:87: 8:88
-        _0 = BitXor(move _9, move _10);  // bb9[8]: scope 1 at $DIR/exponential-or.rs:8:83: 8:88
-        StorageDead(_10);                // bb9[9]: scope 1 at $DIR/exponential-or.rs:8:87: 8:88
-        StorageDead(_9);                 // bb9[10]: scope 1 at $DIR/exponential-or.rs:8:87: 8:88
-        StorageDead(_8);                 // bb9[11]: scope 0 at $DIR/exponential-or.rs:8:88: 8:89
-        StorageDead(_7);                 // bb9[12]: scope 0 at $DIR/exponential-or.rs:8:88: 8:89
-        goto -> bb10;                    // bb9[13]: scope 0 at $DIR/exponential-or.rs:7:5: 10:6
+        StorageLive(_7);                 // scope 0 at $DIR/exponential-or.rs:8:10: 8:21
+        _7 = (_1.0: u32);                // scope 0 at $DIR/exponential-or.rs:8:10: 8:21
+        StorageLive(_8);                 // scope 0 at $DIR/exponential-or.rs:8:57: 8:78
+        _8 = (_1.3: u32);                // scope 0 at $DIR/exponential-or.rs:8:57: 8:78
+        StorageLive(_9);                 // scope 1 at $DIR/exponential-or.rs:8:83: 8:84
+        _9 = _7;                         // scope 1 at $DIR/exponential-or.rs:8:83: 8:84
+        StorageLive(_10);                // scope 1 at $DIR/exponential-or.rs:8:87: 8:88
+        _10 = _8;                        // scope 1 at $DIR/exponential-or.rs:8:87: 8:88
+        _0 = BitXor(move _9, move _10);  // scope 1 at $DIR/exponential-or.rs:8:83: 8:88
+        StorageDead(_10);                // scope 1 at $DIR/exponential-or.rs:8:87: 8:88
+        StorageDead(_9);                 // scope 1 at $DIR/exponential-or.rs:8:87: 8:88
+        StorageDead(_8);                 // scope 0 at $DIR/exponential-or.rs:8:88: 8:89
+        StorageDead(_7);                 // scope 0 at $DIR/exponential-or.rs:8:88: 8:89
+        goto -> bb10;                    // scope 0 at $DIR/exponential-or.rs:7:5: 10:6
     }
 
     bb10: {
-        return;                          // bb10[0]: scope 0 at $DIR/exponential-or.rs:11:2: 11:2
+        return;                          // scope 0 at $DIR/exponential-or.rs:11:2: 11:2
     }
 }
diff --git a/src/test/mir-opt/generator-drop-cleanup/rustc.main-{{closure}}.generator_drop.0.mir b/src/test/mir-opt/generator-drop-cleanup/rustc.main-{{closure}}.generator_drop.0.mir
index 887a4dd2cd3..c88b142428a 100644
--- a/src/test/mir-opt/generator-drop-cleanup/rustc.main-{{closure}}.generator_drop.0.mir
+++ b/src/test/mir-opt/generator-drop-cleanup/rustc.main-{{closure}}.generator_drop.0.mir
@@ -20,61 +20,61 @@ fn main::{{closure}}#0(_1: *mut [generator@$DIR/generator-drop-cleanup.rs:10:15:
     }
 
     bb0: {
-        _9 = discriminant((*_1));        // bb0[0]: scope 0 at $DIR/generator-drop-cleanup.rs:10:15: 13:6
-        switchInt(move _9) -> [0u32: bb7, 3u32: bb11, otherwise: bb12]; // bb0[1]: scope 0 at $DIR/generator-drop-cleanup.rs:10:15: 13:6
+        _9 = discriminant((*_1));        // scope 0 at $DIR/generator-drop-cleanup.rs:10:15: 13:6
+        switchInt(move _9) -> [0u32: bb7, 3u32: bb11, otherwise: bb12]; // scope 0 at $DIR/generator-drop-cleanup.rs:10:15: 13:6
     }
 
     bb1 (cleanup): {
-        resume;                          // bb1[0]: scope 0 at $DIR/generator-drop-cleanup.rs:10:15: 13:6
+        resume;                          // scope 0 at $DIR/generator-drop-cleanup.rs:10:15: 13:6
     }
 
     bb2 (cleanup): {
-        nop;                             // bb2[0]: scope 0 at $DIR/generator-drop-cleanup.rs:13:5: 13:6
-        goto -> bb8;                     // bb2[1]: scope 0 at $DIR/generator-drop-cleanup.rs:13:5: 13:6
+        nop;                             // scope 0 at $DIR/generator-drop-cleanup.rs:13:5: 13:6
+        goto -> bb8;                     // scope 0 at $DIR/generator-drop-cleanup.rs:13:5: 13:6
     }
 
     bb3: {
-        StorageDead(_5);                 // bb3[0]: scope 1 at $DIR/generator-drop-cleanup.rs:12:13: 12:14
-        StorageDead(_4);                 // bb3[1]: scope 1 at $DIR/generator-drop-cleanup.rs:12:14: 12:15
-        drop((((*_1) as variant#3).0: std::string::String)) -> [return: bb4, unwind: bb2]; // bb3[2]: scope 0 at $DIR/generator-drop-cleanup.rs:13:5: 13:6
+        StorageDead(_5);                 // scope 1 at $DIR/generator-drop-cleanup.rs:12:13: 12:14
+        StorageDead(_4);                 // scope 1 at $DIR/generator-drop-cleanup.rs:12:14: 12:15
+        drop((((*_1) as variant#3).0: std::string::String)) -> [return: bb4, unwind: bb2]; // scope 0 at $DIR/generator-drop-cleanup.rs:13:5: 13:6
     }
 
     bb4: {
-        nop;                             // bb4[0]: scope 0 at $DIR/generator-drop-cleanup.rs:13:5: 13:6
-        goto -> bb9;                     // bb4[1]: scope 0 at $DIR/generator-drop-cleanup.rs:13:5: 13:6
+        nop;                             // scope 0 at $DIR/generator-drop-cleanup.rs:13:5: 13:6
+        goto -> bb9;                     // scope 0 at $DIR/generator-drop-cleanup.rs:13:5: 13:6
     }
 
     bb5: {
-        return;                          // bb5[0]: scope 0 at $DIR/generator-drop-cleanup.rs:10:15: 13:6
+        return;                          // scope 0 at $DIR/generator-drop-cleanup.rs:10:15: 13:6
     }
 
     bb6: {
-        return;                          // bb6[0]: scope 0 at $DIR/generator-drop-cleanup.rs:10:15: 13:6
+        return;                          // scope 0 at $DIR/generator-drop-cleanup.rs:10:15: 13:6
     }
 
     bb7: {
-        goto -> bb10;                    // bb7[0]: scope 0 at $DIR/generator-drop-cleanup.rs:10:15: 13:6
+        goto -> bb10;                    // scope 0 at $DIR/generator-drop-cleanup.rs:10:15: 13:6
     }
 
     bb8 (cleanup): {
-        goto -> bb1;                     // bb8[0]: scope 0 at $DIR/generator-drop-cleanup.rs:13:5: 13:6
+        goto -> bb1;                     // scope 0 at $DIR/generator-drop-cleanup.rs:13:5: 13:6
     }
 
     bb9: {
-        goto -> bb5;                     // bb9[0]: scope 0 at $DIR/generator-drop-cleanup.rs:13:5: 13:6
+        goto -> bb5;                     // scope 0 at $DIR/generator-drop-cleanup.rs:13:5: 13:6
     }
 
     bb10: {
-        goto -> bb6;                     // bb10[0]: scope 0 at $DIR/generator-drop-cleanup.rs:10:15: 13:6
+        goto -> bb6;                     // scope 0 at $DIR/generator-drop-cleanup.rs:10:15: 13:6
     }
 
     bb11: {
-        StorageLive(_4);                 // bb11[0]: scope 0 at $DIR/generator-drop-cleanup.rs:10:15: 13:6
-        StorageLive(_5);                 // bb11[1]: scope 0 at $DIR/generator-drop-cleanup.rs:10:15: 13:6
-        goto -> bb3;                     // bb11[2]: scope 0 at $DIR/generator-drop-cleanup.rs:10:15: 13:6
+        StorageLive(_4);                 // scope 0 at $DIR/generator-drop-cleanup.rs:10:15: 13:6
+        StorageLive(_5);                 // scope 0 at $DIR/generator-drop-cleanup.rs:10:15: 13:6
+        goto -> bb3;                     // scope 0 at $DIR/generator-drop-cleanup.rs:10:15: 13:6
     }
 
     bb12: {
-        return;                          // bb12[0]: scope 0 at $DIR/generator-drop-cleanup.rs:10:15: 13:6
+        return;                          // scope 0 at $DIR/generator-drop-cleanup.rs:10:15: 13:6
     }
 }
diff --git a/src/test/mir-opt/generator-storage-dead-unwind/rustc.main-{{closure}}.StateTransform.before.mir b/src/test/mir-opt/generator-storage-dead-unwind/rustc.main-{{closure}}.StateTransform.before.mir
index 5d5f9dcc61d..06645860d84 100644
--- a/src/test/mir-opt/generator-storage-dead-unwind/rustc.main-{{closure}}.StateTransform.before.mir
+++ b/src/test/mir-opt/generator-storage-dead-unwind/rustc.main-{{closure}}.StateTransform.before.mir
@@ -20,39 +20,39 @@ yields ()
     }
 
     bb0: {
-        StorageLive(_3);                 // bb0[0]: scope 0 at $DIR/generator-storage-dead-unwind.rs:23:13: 23:14
-        _3 = Foo(const 5i32);            // bb0[1]: scope 0 at $DIR/generator-storage-dead-unwind.rs:23:17: 23:23
+        StorageLive(_3);                 // scope 0 at $DIR/generator-storage-dead-unwind.rs:23:13: 23:14
+        _3 = Foo(const 5i32);            // scope 0 at $DIR/generator-storage-dead-unwind.rs:23:17: 23:23
                                          // ty::Const
                                          // + ty: i32
                                          // + val: Value(Scalar(0x00000005))
                                          // mir::Constant
                                          // + span: $DIR/generator-storage-dead-unwind.rs:23:21: 23:22
                                          // + literal: Const { ty: i32, val: Value(Scalar(0x00000005)) }
-        StorageLive(_4);                 // bb0[2]: scope 1 at $DIR/generator-storage-dead-unwind.rs:24:13: 24:14
-        _4 = Bar(const 6i32);            // bb0[3]: scope 1 at $DIR/generator-storage-dead-unwind.rs:24:17: 24:23
+        StorageLive(_4);                 // scope 1 at $DIR/generator-storage-dead-unwind.rs:24:13: 24:14
+        _4 = Bar(const 6i32);            // scope 1 at $DIR/generator-storage-dead-unwind.rs:24:17: 24:23
                                          // ty::Const
                                          // + ty: i32
                                          // + val: Value(Scalar(0x00000006))
                                          // mir::Constant
                                          // + span: $DIR/generator-storage-dead-unwind.rs:24:21: 24:22
                                          // + literal: Const { ty: i32, val: Value(Scalar(0x00000006)) }
-        StorageLive(_5);                 // bb0[4]: scope 2 at $DIR/generator-storage-dead-unwind.rs:25:9: 25:14
-        StorageLive(_6);                 // bb0[5]: scope 2 at $DIR/generator-storage-dead-unwind.rs:25:9: 25:14
-        _6 = ();                         // bb0[6]: scope 2 at $DIR/generator-storage-dead-unwind.rs:25:9: 25:14
-        _5 = yield(move _6) -> [resume: bb2, drop: bb4]; // bb0[7]: scope 2 at $DIR/generator-storage-dead-unwind.rs:25:9: 25:14
+        StorageLive(_5);                 // scope 2 at $DIR/generator-storage-dead-unwind.rs:25:9: 25:14
+        StorageLive(_6);                 // scope 2 at $DIR/generator-storage-dead-unwind.rs:25:9: 25:14
+        _6 = ();                         // scope 2 at $DIR/generator-storage-dead-unwind.rs:25:9: 25:14
+        _5 = yield(move _6) -> [resume: bb2, drop: bb4]; // scope 2 at $DIR/generator-storage-dead-unwind.rs:25:9: 25:14
     }
 
     bb1 (cleanup): {
-        resume;                          // bb1[0]: scope 0 at $DIR/generator-storage-dead-unwind.rs:22:16: 28:6
+        resume;                          // scope 0 at $DIR/generator-storage-dead-unwind.rs:22:16: 28:6
     }
 
     bb2: {
-        StorageDead(_6);                 // bb2[0]: scope 2 at $DIR/generator-storage-dead-unwind.rs:25:13: 25:14
-        StorageDead(_5);                 // bb2[1]: scope 2 at $DIR/generator-storage-dead-unwind.rs:25:14: 25:15
-        StorageLive(_7);                 // bb2[2]: scope 2 at $DIR/generator-storage-dead-unwind.rs:26:9: 26:16
-        StorageLive(_8);                 // bb2[3]: scope 2 at $DIR/generator-storage-dead-unwind.rs:26:14: 26:15
-        _8 = move _3;                    // bb2[4]: scope 2 at $DIR/generator-storage-dead-unwind.rs:26:14: 26:15
-        _7 = const take::<Foo>(move _8) -> [return: bb7, unwind: bb9]; // bb2[5]: scope 2 at $DIR/generator-storage-dead-unwind.rs:26:9: 26:16
+        StorageDead(_6);                 // scope 2 at $DIR/generator-storage-dead-unwind.rs:25:13: 25:14
+        StorageDead(_5);                 // scope 2 at $DIR/generator-storage-dead-unwind.rs:25:14: 25:15
+        StorageLive(_7);                 // scope 2 at $DIR/generator-storage-dead-unwind.rs:26:9: 26:16
+        StorageLive(_8);                 // scope 2 at $DIR/generator-storage-dead-unwind.rs:26:14: 26:15
+        _8 = move _3;                    // scope 2 at $DIR/generator-storage-dead-unwind.rs:26:14: 26:15
+        _7 = const take::<Foo>(move _8) -> [return: bb7, unwind: bb9]; // scope 2 at $DIR/generator-storage-dead-unwind.rs:26:9: 26:16
                                          // ty::Const
                                          // + ty: fn(Foo) {take::<Foo>}
                                          // + val: Value(Scalar(<ZST>))
@@ -62,33 +62,33 @@ yields ()
     }
 
     bb3 (cleanup): {
-        StorageDead(_3);                 // bb3[0]: scope 0 at $DIR/generator-storage-dead-unwind.rs:28:5: 28:6
-        drop(_1) -> bb1;                 // bb3[1]: scope 0 at $DIR/generator-storage-dead-unwind.rs:28:5: 28:6
+        StorageDead(_3);                 // scope 0 at $DIR/generator-storage-dead-unwind.rs:28:5: 28:6
+        drop(_1) -> bb1;                 // scope 0 at $DIR/generator-storage-dead-unwind.rs:28:5: 28:6
     }
 
     bb4: {
-        StorageDead(_6);                 // bb4[0]: scope 2 at $DIR/generator-storage-dead-unwind.rs:25:13: 25:14
-        StorageDead(_5);                 // bb4[1]: scope 2 at $DIR/generator-storage-dead-unwind.rs:25:14: 25:15
-        StorageDead(_4);                 // bb4[2]: scope 1 at $DIR/generator-storage-dead-unwind.rs:28:5: 28:6
-        drop(_3) -> [return: bb5, unwind: bb3]; // bb4[3]: scope 0 at $DIR/generator-storage-dead-unwind.rs:28:5: 28:6
+        StorageDead(_6);                 // scope 2 at $DIR/generator-storage-dead-unwind.rs:25:13: 25:14
+        StorageDead(_5);                 // scope 2 at $DIR/generator-storage-dead-unwind.rs:25:14: 25:15
+        StorageDead(_4);                 // scope 1 at $DIR/generator-storage-dead-unwind.rs:28:5: 28:6
+        drop(_3) -> [return: bb5, unwind: bb3]; // scope 0 at $DIR/generator-storage-dead-unwind.rs:28:5: 28:6
     }
 
     bb5: {
-        StorageDead(_3);                 // bb5[0]: scope 0 at $DIR/generator-storage-dead-unwind.rs:28:5: 28:6
-        drop(_1) -> [return: bb6, unwind: bb1]; // bb5[1]: scope 0 at $DIR/generator-storage-dead-unwind.rs:28:5: 28:6
+        StorageDead(_3);                 // scope 0 at $DIR/generator-storage-dead-unwind.rs:28:5: 28:6
+        drop(_1) -> [return: bb6, unwind: bb1]; // scope 0 at $DIR/generator-storage-dead-unwind.rs:28:5: 28:6
     }
 
     bb6: {
-        generator_drop;                  // bb6[0]: scope 0 at $DIR/generator-storage-dead-unwind.rs:22:16: 28:6
+        generator_drop;                  // scope 0 at $DIR/generator-storage-dead-unwind.rs:22:16: 28:6
     }
 
     bb7: {
-        StorageDead(_8);                 // bb7[0]: scope 2 at $DIR/generator-storage-dead-unwind.rs:26:15: 26:16
-        StorageDead(_7);                 // bb7[1]: scope 2 at $DIR/generator-storage-dead-unwind.rs:26:16: 26:17
-        StorageLive(_9);                 // bb7[2]: scope 2 at $DIR/generator-storage-dead-unwind.rs:27:9: 27:16
-        StorageLive(_10);                // bb7[3]: scope 2 at $DIR/generator-storage-dead-unwind.rs:27:14: 27:15
-        _10 = move _4;                   // bb7[4]: scope 2 at $DIR/generator-storage-dead-unwind.rs:27:14: 27:15
-        _9 = const take::<Bar>(move _10) -> [return: bb10, unwind: bb11]; // bb7[5]: scope 2 at $DIR/generator-storage-dead-unwind.rs:27:9: 27:16
+        StorageDead(_8);                 // scope 2 at $DIR/generator-storage-dead-unwind.rs:26:15: 26:16
+        StorageDead(_7);                 // scope 2 at $DIR/generator-storage-dead-unwind.rs:26:16: 26:17
+        StorageLive(_9);                 // scope 2 at $DIR/generator-storage-dead-unwind.rs:27:9: 27:16
+        StorageLive(_10);                // scope 2 at $DIR/generator-storage-dead-unwind.rs:27:14: 27:15
+        _10 = move _4;                   // scope 2 at $DIR/generator-storage-dead-unwind.rs:27:14: 27:15
+        _9 = const take::<Bar>(move _10) -> [return: bb10, unwind: bb11]; // scope 2 at $DIR/generator-storage-dead-unwind.rs:27:9: 27:16
                                          // ty::Const
                                          // + ty: fn(Bar) {take::<Bar>}
                                          // + val: Value(Scalar(<ZST>))
@@ -98,39 +98,39 @@ yields ()
     }
 
     bb8 (cleanup): {
-        StorageDead(_4);                 // bb8[0]: scope 1 at $DIR/generator-storage-dead-unwind.rs:28:5: 28:6
-        StorageDead(_3);                 // bb8[1]: scope 0 at $DIR/generator-storage-dead-unwind.rs:28:5: 28:6
-        drop(_1) -> bb1;                 // bb8[2]: scope 0 at $DIR/generator-storage-dead-unwind.rs:28:5: 28:6
+        StorageDead(_4);                 // scope 1 at $DIR/generator-storage-dead-unwind.rs:28:5: 28:6
+        StorageDead(_3);                 // scope 0 at $DIR/generator-storage-dead-unwind.rs:28:5: 28:6
+        drop(_1) -> bb1;                 // scope 0 at $DIR/generator-storage-dead-unwind.rs:28:5: 28:6
     }
 
     bb9 (cleanup): {
-        StorageDead(_8);                 // bb9[0]: scope 2 at $DIR/generator-storage-dead-unwind.rs:26:15: 26:16
-        StorageDead(_7);                 // bb9[1]: scope 2 at $DIR/generator-storage-dead-unwind.rs:26:16: 26:17
-        goto -> bb8;                     // bb9[2]: scope 2 at $DIR/generator-storage-dead-unwind.rs:1:1: 1:1
+        StorageDead(_8);                 // scope 2 at $DIR/generator-storage-dead-unwind.rs:26:15: 26:16
+        StorageDead(_7);                 // scope 2 at $DIR/generator-storage-dead-unwind.rs:26:16: 26:17
+        goto -> bb8;                     // scope 2 at $DIR/generator-storage-dead-unwind.rs:1:1: 1:1
     }
 
     bb10: {
-        StorageDead(_10);                // bb10[0]: scope 2 at $DIR/generator-storage-dead-unwind.rs:27:15: 27:16
-        StorageDead(_9);                 // bb10[1]: scope 2 at $DIR/generator-storage-dead-unwind.rs:27:16: 27:17
-        _0 = const ();                   // bb10[2]: scope 0 at $DIR/generator-storage-dead-unwind.rs:22:19: 28:6
+        StorageDead(_10);                // scope 2 at $DIR/generator-storage-dead-unwind.rs:27:15: 27:16
+        StorageDead(_9);                 // scope 2 at $DIR/generator-storage-dead-unwind.rs:27:16: 27:17
+        _0 = const ();                   // scope 0 at $DIR/generator-storage-dead-unwind.rs:22:19: 28:6
                                          // ty::Const
                                          // + ty: ()
                                          // + val: Value(Scalar(<ZST>))
                                          // mir::Constant
                                          // + span: $DIR/generator-storage-dead-unwind.rs:22:19: 28:6
                                          // + literal: Const { ty: (), val: Value(Scalar(<ZST>)) }
-        StorageDead(_4);                 // bb10[3]: scope 1 at $DIR/generator-storage-dead-unwind.rs:28:5: 28:6
-        StorageDead(_3);                 // bb10[4]: scope 0 at $DIR/generator-storage-dead-unwind.rs:28:5: 28:6
-        drop(_1) -> [return: bb12, unwind: bb1]; // bb10[5]: scope 0 at $DIR/generator-storage-dead-unwind.rs:28:5: 28:6
+        StorageDead(_4);                 // scope 1 at $DIR/generator-storage-dead-unwind.rs:28:5: 28:6
+        StorageDead(_3);                 // scope 0 at $DIR/generator-storage-dead-unwind.rs:28:5: 28:6
+        drop(_1) -> [return: bb12, unwind: bb1]; // scope 0 at $DIR/generator-storage-dead-unwind.rs:28:5: 28:6
     }
 
     bb11 (cleanup): {
-        StorageDead(_10);                // bb11[0]: scope 2 at $DIR/generator-storage-dead-unwind.rs:27:15: 27:16
-        StorageDead(_9);                 // bb11[1]: scope 2 at $DIR/generator-storage-dead-unwind.rs:27:16: 27:17
-        goto -> bb8;                     // bb11[2]: scope 2 at $DIR/generator-storage-dead-unwind.rs:1:1: 1:1
+        StorageDead(_10);                // scope 2 at $DIR/generator-storage-dead-unwind.rs:27:15: 27:16
+        StorageDead(_9);                 // scope 2 at $DIR/generator-storage-dead-unwind.rs:27:16: 27:17
+        goto -> bb8;                     // scope 2 at $DIR/generator-storage-dead-unwind.rs:1:1: 1:1
     }
 
     bb12: {
-        return;                          // bb12[0]: scope 0 at $DIR/generator-storage-dead-unwind.rs:28:6: 28:6
+        return;                          // scope 0 at $DIR/generator-storage-dead-unwind.rs:28:6: 28:6
     }
 }
diff --git a/src/test/mir-opt/generator-tiny/rustc.main-{{closure}}.generator_resume.0.mir b/src/test/mir-opt/generator-tiny/rustc.main-{{closure}}.generator_resume.0.mir
index dbab6ceffdc..84b8af5d6b7 100644
--- a/src/test/mir-opt/generator-tiny/rustc.main-{{closure}}.generator_resume.0.mir
+++ b/src/test/mir-opt/generator-tiny/rustc.main-{{closure}}.generator_resume.0.mir
@@ -18,32 +18,32 @@ fn main::{{closure}}#0(_1: std::pin::Pin<&mut [generator@$DIR/generator-tiny.rs:
     }
 
     bb0: {
-        _11 = discriminant((*(_1.0: &mut [generator@$DIR/generator-tiny.rs:18:16: 24:6 {u8, HasDrop, ()}]))); // bb0[0]: scope 0 at $DIR/generator-tiny.rs:18:16: 24:6
-        switchInt(move _11) -> [0u32: bb1, 3u32: bb5, otherwise: bb6]; // bb0[1]: scope 0 at $DIR/generator-tiny.rs:18:16: 24:6
+        _11 = discriminant((*(_1.0: &mut [generator@$DIR/generator-tiny.rs:18:16: 24:6 {u8, HasDrop, ()}]))); // scope 0 at $DIR/generator-tiny.rs:18:16: 24:6
+        switchInt(move _11) -> [0u32: bb1, 3u32: bb5, otherwise: bb6]; // scope 0 at $DIR/generator-tiny.rs:18:16: 24:6
     }
 
     bb1: {
-        _10 = move _2;                   // bb1[0]: scope 0 at $DIR/generator-tiny.rs:18:16: 24:6
-        nop;                             // bb1[1]: scope 0 at $DIR/generator-tiny.rs:19:13: 19:15
-        (((*(_1.0: &mut [generator@$DIR/generator-tiny.rs:18:16: 24:6 {u8, HasDrop, ()}])) as variant#3).0: HasDrop) = HasDrop; // bb1[2]: scope 0 at $DIR/generator-tiny.rs:19:18: 19:25
-        StorageLive(_4);                 // bb1[3]: scope 1 at $DIR/generator-tiny.rs:20:9: 23:10
-        goto -> bb2;                     // bb1[4]: scope 1 at $DIR/generator-tiny.rs:20:9: 23:10
+        _10 = move _2;                   // scope 0 at $DIR/generator-tiny.rs:18:16: 24:6
+        nop;                             // scope 0 at $DIR/generator-tiny.rs:19:13: 19:15
+        (((*(_1.0: &mut [generator@$DIR/generator-tiny.rs:18:16: 24:6 {u8, HasDrop, ()}])) as variant#3).0: HasDrop) = HasDrop; // scope 0 at $DIR/generator-tiny.rs:19:18: 19:25
+        StorageLive(_4);                 // scope 1 at $DIR/generator-tiny.rs:20:9: 23:10
+        goto -> bb2;                     // scope 1 at $DIR/generator-tiny.rs:20:9: 23:10
     }
 
     bb2: {
-        StorageLive(_6);                 // bb2[0]: scope 1 at $DIR/generator-tiny.rs:21:13: 21:18
-        StorageLive(_7);                 // bb2[1]: scope 1 at $DIR/generator-tiny.rs:21:13: 21:18
-        _7 = ();                         // bb2[2]: scope 1 at $DIR/generator-tiny.rs:21:13: 21:18
-        _0 = std::ops::GeneratorState::<(), ()>::Yielded(move _7); // bb2[3]: scope 1 at $DIR/generator-tiny.rs:21:13: 21:18
-        discriminant((*(_1.0: &mut [generator@$DIR/generator-tiny.rs:18:16: 24:6 {u8, HasDrop, ()}]))) = 3; // bb2[4]: scope 1 at $DIR/generator-tiny.rs:21:13: 21:18
-        return;                          // bb2[5]: scope 1 at $DIR/generator-tiny.rs:21:13: 21:18
+        StorageLive(_6);                 // scope 1 at $DIR/generator-tiny.rs:21:13: 21:18
+        StorageLive(_7);                 // scope 1 at $DIR/generator-tiny.rs:21:13: 21:18
+        _7 = ();                         // scope 1 at $DIR/generator-tiny.rs:21:13: 21:18
+        _0 = std::ops::GeneratorState::<(), ()>::Yielded(move _7); // scope 1 at $DIR/generator-tiny.rs:21:13: 21:18
+        discriminant((*(_1.0: &mut [generator@$DIR/generator-tiny.rs:18:16: 24:6 {u8, HasDrop, ()}]))) = 3; // scope 1 at $DIR/generator-tiny.rs:21:13: 21:18
+        return;                          // scope 1 at $DIR/generator-tiny.rs:21:13: 21:18
     }
 
     bb3: {
-        StorageDead(_7);                 // bb3[0]: scope 1 at $DIR/generator-tiny.rs:21:17: 21:18
-        StorageDead(_6);                 // bb3[1]: scope 1 at $DIR/generator-tiny.rs:21:18: 21:19
-        StorageLive(_8);                 // bb3[2]: scope 1 at $DIR/generator-tiny.rs:22:13: 22:21
-        _8 = const callee() -> bb4;      // bb3[3]: scope 1 at $DIR/generator-tiny.rs:22:13: 22:21
+        StorageDead(_7);                 // scope 1 at $DIR/generator-tiny.rs:21:17: 21:18
+        StorageDead(_6);                 // scope 1 at $DIR/generator-tiny.rs:21:18: 21:19
+        StorageLive(_8);                 // scope 1 at $DIR/generator-tiny.rs:22:13: 22:21
+        _8 = const callee() -> bb4;      // scope 1 at $DIR/generator-tiny.rs:22:13: 22:21
                                          // ty::Const
                                          // + ty: fn() {callee}
                                          // + val: Value(Scalar(<ZST>))
@@ -53,26 +53,26 @@ fn main::{{closure}}#0(_1: std::pin::Pin<&mut [generator@$DIR/generator-tiny.rs:
     }
 
     bb4: {
-        StorageDead(_8);                 // bb4[0]: scope 1 at $DIR/generator-tiny.rs:22:21: 22:22
-        _5 = const ();                   // bb4[1]: scope 1 at $DIR/generator-tiny.rs:20:14: 23:10
+        StorageDead(_8);                 // scope 1 at $DIR/generator-tiny.rs:22:21: 22:22
+        _5 = const ();                   // scope 1 at $DIR/generator-tiny.rs:20:14: 23:10
                                          // ty::Const
                                          // + ty: ()
                                          // + val: Value(Scalar(<ZST>))
                                          // mir::Constant
                                          // + span: $DIR/generator-tiny.rs:20:14: 23:10
                                          // + literal: Const { ty: (), val: Value(Scalar(<ZST>)) }
-        goto -> bb2;                     // bb4[2]: scope 1 at $DIR/generator-tiny.rs:20:9: 23:10
+        goto -> bb2;                     // scope 1 at $DIR/generator-tiny.rs:20:9: 23:10
     }
 
     bb5: {
-        StorageLive(_4);                 // bb5[0]: scope 0 at $DIR/generator-tiny.rs:18:16: 24:6
-        StorageLive(_6);                 // bb5[1]: scope 0 at $DIR/generator-tiny.rs:18:16: 24:6
-        StorageLive(_7);                 // bb5[2]: scope 0 at $DIR/generator-tiny.rs:18:16: 24:6
-        _6 = move _2;                    // bb5[3]: scope 0 at $DIR/generator-tiny.rs:18:16: 24:6
-        goto -> bb3;                     // bb5[4]: scope 0 at $DIR/generator-tiny.rs:18:16: 24:6
+        StorageLive(_4);                 // scope 0 at $DIR/generator-tiny.rs:18:16: 24:6
+        StorageLive(_6);                 // scope 0 at $DIR/generator-tiny.rs:18:16: 24:6
+        StorageLive(_7);                 // scope 0 at $DIR/generator-tiny.rs:18:16: 24:6
+        _6 = move _2;                    // scope 0 at $DIR/generator-tiny.rs:18:16: 24:6
+        goto -> bb3;                     // scope 0 at $DIR/generator-tiny.rs:18:16: 24:6
     }
 
     bb6: {
-        unreachable;                     // bb6[0]: scope 0 at $DIR/generator-tiny.rs:18:16: 24:6
+        unreachable;                     // scope 0 at $DIR/generator-tiny.rs:18:16: 24:6
     }
 }
diff --git a/src/test/mir-opt/inline/inline-any-operand/rustc.bar.Inline.after.mir b/src/test/mir-opt/inline/inline-any-operand/rustc.bar.Inline.after.mir
index 058d9e70d26..19748d52ec7 100644
--- a/src/test/mir-opt/inline/inline-any-operand/rustc.bar.Inline.after.mir
+++ b/src/test/mir-opt/inline/inline-any-operand/rustc.bar.Inline.after.mir
@@ -15,33 +15,33 @@ fn bar() -> bool {
     }
 
     bb0: {
-        StorageLive(_1);                 // bb0[0]: scope 0 at $DIR/inline-any-operand.rs:11:9: 11:10
-        _1 = const foo;                  // bb0[1]: scope 0 at $DIR/inline-any-operand.rs:11:13: 11:16
+        StorageLive(_1);                 // scope 0 at $DIR/inline-any-operand.rs:11:9: 11:10
+        _1 = const foo;                  // scope 0 at $DIR/inline-any-operand.rs:11:13: 11:16
                                          // ty::Const
                                          // + ty: fn(i32, i32) -> bool {foo}
                                          // + val: Value(Scalar(<ZST>))
                                          // mir::Constant
                                          // + span: $DIR/inline-any-operand.rs:11:13: 11:16
                                          // + literal: Const { ty: fn(i32, i32) -> bool {foo}, val: Value(Scalar(<ZST>)) }
-        StorageLive(_2);                 // bb0[2]: scope 1 at $DIR/inline-any-operand.rs:12:5: 12:6
-        _2 = _1;                         // bb0[3]: scope 1 at $DIR/inline-any-operand.rs:12:5: 12:6
-        _3 = const 1i32;                 // bb0[4]: scope 1 at $DIR/inline-any-operand.rs:12:5: 12:13
+        StorageLive(_2);                 // scope 1 at $DIR/inline-any-operand.rs:12:5: 12:6
+        _2 = _1;                         // scope 1 at $DIR/inline-any-operand.rs:12:5: 12:6
+        _3 = const 1i32;                 // scope 1 at $DIR/inline-any-operand.rs:12:5: 12:13
                                          // ty::Const
                                          // + ty: i32
                                          // + val: Value(Scalar(0x00000001))
                                          // mir::Constant
                                          // + span: $DIR/inline-any-operand.rs:12:7: 12:8
                                          // + literal: Const { ty: i32, val: Value(Scalar(0x00000001)) }
-        _4 = const -1i32;                // bb0[5]: scope 1 at $DIR/inline-any-operand.rs:12:5: 12:13
+        _4 = const -1i32;                // scope 1 at $DIR/inline-any-operand.rs:12:5: 12:13
                                          // ty::Const
                                          // + ty: i32
                                          // + val: Value(Scalar(0xffffffff))
                                          // mir::Constant
                                          // + span: $DIR/inline-any-operand.rs:12:10: 12:12
                                          // + literal: Const { ty: i32, val: Value(Scalar(0xffffffff)) }
-        _0 = Eq(move _3, move _4);       // bb0[6]: scope 2 at $DIR/inline-any-operand.rs:17:5: 17:11
-        StorageDead(_2);                 // bb0[7]: scope 1 at $DIR/inline-any-operand.rs:12:12: 12:13
-        StorageDead(_1);                 // bb0[8]: scope 0 at $DIR/inline-any-operand.rs:13:1: 13:2
-        return;                          // bb0[9]: scope 0 at $DIR/inline-any-operand.rs:13:2: 13:2
+        _0 = Eq(move _3, move _4);       // scope 2 at $DIR/inline-any-operand.rs:17:5: 17:11
+        StorageDead(_2);                 // scope 1 at $DIR/inline-any-operand.rs:12:12: 12:13
+        StorageDead(_1);                 // scope 0 at $DIR/inline-any-operand.rs:13:1: 13:2
+        return;                          // scope 0 at $DIR/inline-any-operand.rs:13:2: 13:2
     }
 }
diff --git a/src/test/mir-opt/inline/inline-closure-borrows-arg/rustc.foo.Inline.after.mir b/src/test/mir-opt/inline/inline-closure-borrows-arg/rustc.foo.Inline.after.mir
index a8e846d1181..cea3c59a3e4 100644
--- a/src/test/mir-opt/inline/inline-closure-borrows-arg/rustc.foo.Inline.after.mir
+++ b/src/test/mir-opt/inline/inline-closure-borrows-arg/rustc.foo.Inline.after.mir
@@ -23,8 +23,8 @@ fn foo(_1: T, _2: &i32) -> i32 {
     }
 
     bb0: {
-        StorageLive(_3);                 // bb0[0]: scope 0 at $DIR/inline-closure-borrows-arg.rs:12:9: 12:10
-        _3 = [closure@foo::<T>::{{closure}}#0]; // bb0[1]: scope 0 at $DIR/inline-closure-borrows-arg.rs:12:13: 15:6
+        StorageLive(_3);                 // scope 0 at $DIR/inline-closure-borrows-arg.rs:12:9: 12:10
+        _3 = [closure@foo::<T>::{{closure}}#0]; // scope 0 at $DIR/inline-closure-borrows-arg.rs:12:13: 15:6
                                          // closure
                                          // + def_id: DefId(0:6 ~ inline_closure_borrows_arg[317d]::foo[0]::{{closure}}[0])
                                          // + substs: [
@@ -33,22 +33,22 @@ fn foo(_1: T, _2: &i32) -> i32 {
                                          //     for<'r, 's> extern "rust-call" fn((&'r i32, &'s i32)) -> i32,
                                          //     (),
                                          // ]
-        StorageLive(_4);                 // bb0[2]: scope 1 at $DIR/inline-closure-borrows-arg.rs:16:5: 16:6
-        _4 = &_3;                        // bb0[3]: scope 1 at $DIR/inline-closure-borrows-arg.rs:16:5: 16:6
-        StorageLive(_5);                 // bb0[4]: scope 1 at $DIR/inline-closure-borrows-arg.rs:16:5: 16:12
-        StorageLive(_6);                 // bb0[5]: scope 1 at $DIR/inline-closure-borrows-arg.rs:16:7: 16:8
-        _6 = &(*_2);                     // bb0[6]: scope 1 at $DIR/inline-closure-borrows-arg.rs:16:7: 16:8
-        StorageLive(_7);                 // bb0[7]: scope 1 at $DIR/inline-closure-borrows-arg.rs:16:10: 16:11
-        _7 = &(*_2);                     // bb0[8]: scope 1 at $DIR/inline-closure-borrows-arg.rs:16:10: 16:11
-        _5 = (move _6, move _7);         // bb0[9]: scope 1 at $DIR/inline-closure-borrows-arg.rs:16:5: 16:12
-        _8 = move (_5.0: &i32);          // bb0[10]: scope 1 at $DIR/inline-closure-borrows-arg.rs:16:5: 16:12
-        _9 = move (_5.1: &i32);          // bb0[11]: scope 1 at $DIR/inline-closure-borrows-arg.rs:16:5: 16:12
-        _0 = (*_8);                      // bb0[12]: scope 3 at $DIR/inline-closure-borrows-arg.rs:14:9: 14:18
-        StorageDead(_7);                 // bb0[13]: scope 1 at $DIR/inline-closure-borrows-arg.rs:16:11: 16:12
-        StorageDead(_6);                 // bb0[14]: scope 1 at $DIR/inline-closure-borrows-arg.rs:16:11: 16:12
-        StorageDead(_5);                 // bb0[15]: scope 1 at $DIR/inline-closure-borrows-arg.rs:16:11: 16:12
-        StorageDead(_4);                 // bb0[16]: scope 1 at $DIR/inline-closure-borrows-arg.rs:16:11: 16:12
-        StorageDead(_3);                 // bb0[17]: scope 0 at $DIR/inline-closure-borrows-arg.rs:17:1: 17:2
-        return;                          // bb0[18]: scope 0 at $DIR/inline-closure-borrows-arg.rs:17:2: 17:2
+        StorageLive(_4);                 // scope 1 at $DIR/inline-closure-borrows-arg.rs:16:5: 16:6
+        _4 = &_3;                        // scope 1 at $DIR/inline-closure-borrows-arg.rs:16:5: 16:6
+        StorageLive(_5);                 // scope 1 at $DIR/inline-closure-borrows-arg.rs:16:5: 16:12
+        StorageLive(_6);                 // scope 1 at $DIR/inline-closure-borrows-arg.rs:16:7: 16:8
+        _6 = &(*_2);                     // scope 1 at $DIR/inline-closure-borrows-arg.rs:16:7: 16:8
+        StorageLive(_7);                 // scope 1 at $DIR/inline-closure-borrows-arg.rs:16:10: 16:11
+        _7 = &(*_2);                     // scope 1 at $DIR/inline-closure-borrows-arg.rs:16:10: 16:11
+        _5 = (move _6, move _7);         // scope 1 at $DIR/inline-closure-borrows-arg.rs:16:5: 16:12
+        _8 = move (_5.0: &i32);          // scope 1 at $DIR/inline-closure-borrows-arg.rs:16:5: 16:12
+        _9 = move (_5.1: &i32);          // scope 1 at $DIR/inline-closure-borrows-arg.rs:16:5: 16:12
+        _0 = (*_8);                      // scope 3 at $DIR/inline-closure-borrows-arg.rs:14:9: 14:18
+        StorageDead(_7);                 // scope 1 at $DIR/inline-closure-borrows-arg.rs:16:11: 16:12
+        StorageDead(_6);                 // scope 1 at $DIR/inline-closure-borrows-arg.rs:16:11: 16:12
+        StorageDead(_5);                 // scope 1 at $DIR/inline-closure-borrows-arg.rs:16:11: 16:12
+        StorageDead(_4);                 // scope 1 at $DIR/inline-closure-borrows-arg.rs:16:11: 16:12
+        StorageDead(_3);                 // scope 0 at $DIR/inline-closure-borrows-arg.rs:17:1: 17:2
+        return;                          // scope 0 at $DIR/inline-closure-borrows-arg.rs:17:2: 17:2
     }
 }
diff --git a/src/test/mir-opt/inline/inline-closure-captures/rustc.foo.Inline.after.mir b/src/test/mir-opt/inline/inline-closure-captures/rustc.foo.Inline.after.mir
index 8f7c5615662..eeff914ccff 100644
--- a/src/test/mir-opt/inline/inline-closure-captures/rustc.foo.Inline.after.mir
+++ b/src/test/mir-opt/inline/inline-closure-captures/rustc.foo.Inline.after.mir
@@ -23,12 +23,12 @@ fn foo(_1: T, _2: i32) -> (i32, T) {
     }
 
     bb0: {
-        StorageLive(_3);                 // bb0[0]: scope 0 at $DIR/inline-closure-captures.rs:11:9: 11:10
-        StorageLive(_4);                 // bb0[1]: scope 0 at $DIR/inline-closure-captures.rs:11:13: 11:24
-        _4 = &_2;                        // bb0[2]: scope 0 at $DIR/inline-closure-captures.rs:11:13: 11:24
-        StorageLive(_5);                 // bb0[3]: scope 0 at $DIR/inline-closure-captures.rs:11:13: 11:24
-        _5 = &_1;                        // bb0[4]: scope 0 at $DIR/inline-closure-captures.rs:11:13: 11:24
-        _3 = [closure@foo::<T>::{{closure}}#0] { q: move _4, t: move _5 }; // bb0[5]: scope 0 at $DIR/inline-closure-captures.rs:11:13: 11:24
+        StorageLive(_3);                 // scope 0 at $DIR/inline-closure-captures.rs:11:9: 11:10
+        StorageLive(_4);                 // scope 0 at $DIR/inline-closure-captures.rs:11:13: 11:24
+        _4 = &_2;                        // scope 0 at $DIR/inline-closure-captures.rs:11:13: 11:24
+        StorageLive(_5);                 // scope 0 at $DIR/inline-closure-captures.rs:11:13: 11:24
+        _5 = &_1;                        // scope 0 at $DIR/inline-closure-captures.rs:11:13: 11:24
+        _3 = [closure@foo::<T>::{{closure}}#0] { q: move _4, t: move _5 }; // scope 0 at $DIR/inline-closure-captures.rs:11:13: 11:24
                                          // closure
                                          // + def_id: DefId(0:6 ~ inline_closure_captures[317d]::foo[0]::{{closure}}[0])
                                          // + substs: [
@@ -37,27 +37,27 @@ fn foo(_1: T, _2: i32) -> (i32, T) {
                                          //     extern "rust-call" fn((i32,)) -> (i32, T),
                                          //     (&i32, &T),
                                          // ]
-        StorageDead(_5);                 // bb0[6]: scope 0 at $DIR/inline-closure-captures.rs:11:23: 11:24
-        StorageDead(_4);                 // bb0[7]: scope 0 at $DIR/inline-closure-captures.rs:11:23: 11:24
-        StorageLive(_6);                 // bb0[8]: scope 1 at $DIR/inline-closure-captures.rs:12:5: 12:6
-        _6 = &_3;                        // bb0[9]: scope 1 at $DIR/inline-closure-captures.rs:12:5: 12:6
-        StorageLive(_7);                 // bb0[10]: scope 1 at $DIR/inline-closure-captures.rs:12:5: 12:9
-        StorageLive(_8);                 // bb0[11]: scope 1 at $DIR/inline-closure-captures.rs:12:7: 12:8
-        _8 = _2;                         // bb0[12]: scope 1 at $DIR/inline-closure-captures.rs:12:7: 12:8
-        _7 = (move _8,);                 // bb0[13]: scope 1 at $DIR/inline-closure-captures.rs:12:5: 12:9
-        _11 = move (_7.0: i32);          // bb0[14]: scope 1 at $DIR/inline-closure-captures.rs:12:5: 12:9
-        StorageLive(_9);                 // bb0[15]: scope 2 at $DIR/inline-closure-captures.rs:11:19: 11:20
-        _9 = (*((*_6).0: &i32));         // bb0[16]: scope 2 at $DIR/inline-closure-captures.rs:11:19: 11:20
-        StorageLive(_10);                // bb0[17]: scope 2 at $DIR/inline-closure-captures.rs:11:22: 11:23
-        _10 = (*((*_6).1: &T));          // bb0[18]: scope 2 at $DIR/inline-closure-captures.rs:11:22: 11:23
-        (_0.0: i32) = move _9;           // bb0[19]: scope 2 at $DIR/inline-closure-captures.rs:11:18: 11:24
-        (_0.1: T) = move _10;            // bb0[20]: scope 2 at $DIR/inline-closure-captures.rs:11:18: 11:24
-        StorageDead(_10);                // bb0[21]: scope 2 at $DIR/inline-closure-captures.rs:11:23: 11:24
-        StorageDead(_9);                 // bb0[22]: scope 2 at $DIR/inline-closure-captures.rs:11:23: 11:24
-        StorageDead(_8);                 // bb0[23]: scope 1 at $DIR/inline-closure-captures.rs:12:8: 12:9
-        StorageDead(_7);                 // bb0[24]: scope 1 at $DIR/inline-closure-captures.rs:12:8: 12:9
-        StorageDead(_6);                 // bb0[25]: scope 1 at $DIR/inline-closure-captures.rs:12:8: 12:9
-        StorageDead(_3);                 // bb0[26]: scope 0 at $DIR/inline-closure-captures.rs:13:1: 13:2
-        return;                          // bb0[27]: scope 0 at $DIR/inline-closure-captures.rs:13:2: 13:2
+        StorageDead(_5);                 // scope 0 at $DIR/inline-closure-captures.rs:11:23: 11:24
+        StorageDead(_4);                 // scope 0 at $DIR/inline-closure-captures.rs:11:23: 11:24
+        StorageLive(_6);                 // scope 1 at $DIR/inline-closure-captures.rs:12:5: 12:6
+        _6 = &_3;                        // scope 1 at $DIR/inline-closure-captures.rs:12:5: 12:6
+        StorageLive(_7);                 // scope 1 at $DIR/inline-closure-captures.rs:12:5: 12:9
+        StorageLive(_8);                 // scope 1 at $DIR/inline-closure-captures.rs:12:7: 12:8
+        _8 = _2;                         // scope 1 at $DIR/inline-closure-captures.rs:12:7: 12:8
+        _7 = (move _8,);                 // scope 1 at $DIR/inline-closure-captures.rs:12:5: 12:9
+        _11 = move (_7.0: i32);          // scope 1 at $DIR/inline-closure-captures.rs:12:5: 12:9
+        StorageLive(_9);                 // scope 2 at $DIR/inline-closure-captures.rs:11:19: 11:20
+        _9 = (*((*_6).0: &i32));         // scope 2 at $DIR/inline-closure-captures.rs:11:19: 11:20
+        StorageLive(_10);                // scope 2 at $DIR/inline-closure-captures.rs:11:22: 11:23
+        _10 = (*((*_6).1: &T));          // scope 2 at $DIR/inline-closure-captures.rs:11:22: 11:23
+        (_0.0: i32) = move _9;           // scope 2 at $DIR/inline-closure-captures.rs:11:18: 11:24
+        (_0.1: T) = move _10;            // scope 2 at $DIR/inline-closure-captures.rs:11:18: 11:24
+        StorageDead(_10);                // scope 2 at $DIR/inline-closure-captures.rs:11:23: 11:24
+        StorageDead(_9);                 // scope 2 at $DIR/inline-closure-captures.rs:11:23: 11:24
+        StorageDead(_8);                 // scope 1 at $DIR/inline-closure-captures.rs:12:8: 12:9
+        StorageDead(_7);                 // scope 1 at $DIR/inline-closure-captures.rs:12:8: 12:9
+        StorageDead(_6);                 // scope 1 at $DIR/inline-closure-captures.rs:12:8: 12:9
+        StorageDead(_3);                 // scope 0 at $DIR/inline-closure-captures.rs:13:1: 13:2
+        return;                          // scope 0 at $DIR/inline-closure-captures.rs:13:2: 13:2
     }
 }
diff --git a/src/test/mir-opt/inline/inline-closure/rustc.foo.Inline.after.mir b/src/test/mir-opt/inline/inline-closure/rustc.foo.Inline.after.mir
index e31032e8c69..bd0ec8c7ddb 100644
--- a/src/test/mir-opt/inline/inline-closure/rustc.foo.Inline.after.mir
+++ b/src/test/mir-opt/inline/inline-closure/rustc.foo.Inline.after.mir
@@ -20,8 +20,8 @@ fn foo(_1: T, _2: i32) -> i32 {
     }
 
     bb0: {
-        StorageLive(_3);                 // bb0[0]: scope 0 at $DIR/inline-closure.rs:11:9: 11:10
-        _3 = [closure@foo::<T>::{{closure}}#0]; // bb0[1]: scope 0 at $DIR/inline-closure.rs:11:13: 11:24
+        StorageLive(_3);                 // scope 0 at $DIR/inline-closure.rs:11:9: 11:10
+        _3 = [closure@foo::<T>::{{closure}}#0]; // scope 0 at $DIR/inline-closure.rs:11:13: 11:24
                                          // closure
                                          // + def_id: DefId(0:6 ~ inline_closure[317d]::foo[0]::{{closure}}[0])
                                          // + substs: [
@@ -30,22 +30,22 @@ fn foo(_1: T, _2: i32) -> i32 {
                                          //     extern "rust-call" fn((i32, i32)) -> i32,
                                          //     (),
                                          // ]
-        StorageLive(_4);                 // bb0[2]: scope 1 at $DIR/inline-closure.rs:12:5: 12:6
-        _4 = &_3;                        // bb0[3]: scope 1 at $DIR/inline-closure.rs:12:5: 12:6
-        StorageLive(_5);                 // bb0[4]: scope 1 at $DIR/inline-closure.rs:12:5: 12:12
-        StorageLive(_6);                 // bb0[5]: scope 1 at $DIR/inline-closure.rs:12:7: 12:8
-        _6 = _2;                         // bb0[6]: scope 1 at $DIR/inline-closure.rs:12:7: 12:8
-        StorageLive(_7);                 // bb0[7]: scope 1 at $DIR/inline-closure.rs:12:10: 12:11
-        _7 = _2;                         // bb0[8]: scope 1 at $DIR/inline-closure.rs:12:10: 12:11
-        _5 = (move _6, move _7);         // bb0[9]: scope 1 at $DIR/inline-closure.rs:12:5: 12:12
-        _8 = move (_5.0: i32);           // bb0[10]: scope 1 at $DIR/inline-closure.rs:12:5: 12:12
-        _9 = move (_5.1: i32);           // bb0[11]: scope 1 at $DIR/inline-closure.rs:12:5: 12:12
-        _0 = _8;                         // bb0[12]: scope 2 at $DIR/inline-closure.rs:11:22: 11:24
-        StorageDead(_7);                 // bb0[13]: scope 1 at $DIR/inline-closure.rs:12:11: 12:12
-        StorageDead(_6);                 // bb0[14]: scope 1 at $DIR/inline-closure.rs:12:11: 12:12
-        StorageDead(_5);                 // bb0[15]: scope 1 at $DIR/inline-closure.rs:12:11: 12:12
-        StorageDead(_4);                 // bb0[16]: scope 1 at $DIR/inline-closure.rs:12:11: 12:12
-        StorageDead(_3);                 // bb0[17]: scope 0 at $DIR/inline-closure.rs:13:1: 13:2
-        return;                          // bb0[18]: scope 0 at $DIR/inline-closure.rs:13:2: 13:2
+        StorageLive(_4);                 // scope 1 at $DIR/inline-closure.rs:12:5: 12:6
+        _4 = &_3;                        // scope 1 at $DIR/inline-closure.rs:12:5: 12:6
+        StorageLive(_5);                 // scope 1 at $DIR/inline-closure.rs:12:5: 12:12
+        StorageLive(_6);                 // scope 1 at $DIR/inline-closure.rs:12:7: 12:8
+        _6 = _2;                         // scope 1 at $DIR/inline-closure.rs:12:7: 12:8
+        StorageLive(_7);                 // scope 1 at $DIR/inline-closure.rs:12:10: 12:11
+        _7 = _2;                         // scope 1 at $DIR/inline-closure.rs:12:10: 12:11
+        _5 = (move _6, move _7);         // scope 1 at $DIR/inline-closure.rs:12:5: 12:12
+        _8 = move (_5.0: i32);           // scope 1 at $DIR/inline-closure.rs:12:5: 12:12
+        _9 = move (_5.1: i32);           // scope 1 at $DIR/inline-closure.rs:12:5: 12:12
+        _0 = _8;                         // scope 2 at $DIR/inline-closure.rs:11:22: 11:24
+        StorageDead(_7);                 // scope 1 at $DIR/inline-closure.rs:12:11: 12:12
+        StorageDead(_6);                 // scope 1 at $DIR/inline-closure.rs:12:11: 12:12
+        StorageDead(_5);                 // scope 1 at $DIR/inline-closure.rs:12:11: 12:12
+        StorageDead(_4);                 // scope 1 at $DIR/inline-closure.rs:12:11: 12:12
+        StorageDead(_3);                 // scope 0 at $DIR/inline-closure.rs:13:1: 13:2
+        return;                          // scope 0 at $DIR/inline-closure.rs:13:2: 13:2
     }
 }
diff --git a/src/test/mir-opt/inline/inline-into-box-place/32bit/rustc.main.Inline.diff b/src/test/mir-opt/inline/inline-into-box-place/32bit/rustc.main.Inline.diff
index 7f2f7cdb176..eca7ae0f549 100644
--- a/src/test/mir-opt/inline/inline-into-box-place/32bit/rustc.main.Inline.diff
+++ b/src/test/mir-opt/inline/inline-into-box-place/32bit/rustc.main.Inline.diff
@@ -14,12 +14,12 @@
 +     }
   
       bb0: {
-          StorageLive(_1);                 // bb0[0]: scope 0 at $DIR/inline-into-box-place.rs:8:9: 8:11
-          StorageLive(_2);                 // bb0[1]: scope 0 at $DIR/inline-into-box-place.rs:8:29: 8:43
-          _2 = Box(std::vec::Vec<u32>);    // bb0[2]: scope 0 at $DIR/inline-into-box-place.rs:8:29: 8:43
--         (*_2) = const std::vec::Vec::<u32>::new() -> [return: bb2, unwind: bb4]; // bb0[3]: scope 0 at $DIR/inline-into-box-place.rs:8:33: 8:43
-+         _4 = &mut (*_2);                 // bb0[3]: scope 0 at $DIR/inline-into-box-place.rs:8:33: 8:43
-+         ((*_4).0: alloc::raw_vec::RawVec<u32>) = const alloc::raw_vec::RawVec::<u32> { ptr: std::ptr::Unique::<u32> { pointer: {0x4 as *const u32}, _marker: std::marker::PhantomData::<u32> }, cap: 0usize, alloc: std::alloc::Global }; // bb0[4]: scope 2 at $SRC_DIR/liballoc/vec.rs:LL:COL
+          StorageLive(_1);                 // scope 0 at $DIR/inline-into-box-place.rs:8:9: 8:11
+          StorageLive(_2);                 // scope 0 at $DIR/inline-into-box-place.rs:8:29: 8:43
+          _2 = Box(std::vec::Vec<u32>);    // scope 0 at $DIR/inline-into-box-place.rs:8:29: 8:43
+-         (*_2) = const std::vec::Vec::<u32>::new() -> [return: bb2, unwind: bb4]; // scope 0 at $DIR/inline-into-box-place.rs:8:33: 8:43
++         _4 = &mut (*_2);                 // scope 0 at $DIR/inline-into-box-place.rs:8:33: 8:43
++         ((*_4).0: alloc::raw_vec::RawVec<u32>) = const alloc::raw_vec::RawVec::<u32> { ptr: std::ptr::Unique::<u32> { pointer: {0x4 as *const u32}, _marker: std::marker::PhantomData::<u32> }, cap: 0usize, alloc: std::alloc::Global }; // scope 2 at $SRC_DIR/liballoc/vec.rs:LL:COL
                                            // ty::Const
 -                                          // + ty: fn() -> std::vec::Vec<u32> {std::vec::Vec::<u32>::new}
 -                                          // + val: Value(Scalar(<ZST>))
@@ -32,45 +32,42 @@
 -     }
 - 
 -     bb1 (cleanup): {
--         resume;                          // bb1[0]: scope 0 at $DIR/inline-into-box-place.rs:7:1: 9:2
+-         resume;                          // scope 0 at $DIR/inline-into-box-place.rs:7:1: 9:2
 -     }
 - 
 -     bb2: {
--         _1 = move _2;                    // bb2[0]: scope 0 at $DIR/inline-into-box-place.rs:8:29: 8:43
--         StorageDead(_2);                 // bb2[1]: scope 0 at $DIR/inline-into-box-place.rs:8:42: 8:43
--         _0 = const ();                   // bb2[2]: scope 0 at $DIR/inline-into-box-place.rs:7:11: 9:2
 +                                          // + span: $SRC_DIR/liballoc/vec.rs:LL:COL
 +                                          // + user_ty: UserType(0)
 +                                          // + literal: Const { ty: alloc::raw_vec::RawVec<u32>, val: Value(ByRef { alloc: Allocation { bytes: [4, 0, 0, 0, 0, 0, 0, 0], relocations: Relocations(SortedMap { data: [] }), undef_mask: UndefMask { blocks: [255], len: Size { raw: 8 } }, size: Size { raw: 8 }, align: Align { pow2: 2 }, mutability: Not, extra: () }, offset: Size { raw: 0 } }) }
-+         ((*_4).1: usize) = const 0usize; // bb0[5]: scope 2 at $SRC_DIR/liballoc/vec.rs:LL:COL
-                                           // ty::Const
++         ((*_4).1: usize) = const 0usize; // scope 2 at $SRC_DIR/liballoc/vec.rs:LL:COL
++                                          // ty::Const
 +                                          // + ty: usize
 +                                          // + val: Value(Scalar(0x00000000))
 +                                          // mir::Constant
 +                                          // + span: $SRC_DIR/liballoc/vec.rs:LL:COL
 +                                          // + literal: Const { ty: usize, val: Value(Scalar(0x00000000)) }
-+         _1 = move _2;                    // bb0[6]: scope 0 at $DIR/inline-into-box-place.rs:8:29: 8:43
-+         StorageDead(_2);                 // bb0[7]: scope 0 at $DIR/inline-into-box-place.rs:8:42: 8:43
-+         _0 = const ();                   // bb0[8]: scope 0 at $DIR/inline-into-box-place.rs:7:11: 9:2
-+                                          // ty::Const
+          _1 = move _2;                    // scope 0 at $DIR/inline-into-box-place.rs:8:29: 8:43
+          StorageDead(_2);                 // scope 0 at $DIR/inline-into-box-place.rs:8:42: 8:43
+          _0 = const ();                   // scope 0 at $DIR/inline-into-box-place.rs:7:11: 9:2
+                                           // ty::Const
                                            // + ty: ()
                                            // + val: Value(Scalar(<ZST>))
                                            // mir::Constant
                                            // + span: $DIR/inline-into-box-place.rs:7:11: 9:2
                                            // + literal: Const { ty: (), val: Value(Scalar(<ZST>)) }
--         drop(_1) -> [return: bb3, unwind: bb1]; // bb2[3]: scope 0 at $DIR/inline-into-box-place.rs:9:1: 9:2
-+         drop(_1) -> [return: bb2, unwind: bb1]; // bb0[9]: scope 0 at $DIR/inline-into-box-place.rs:9:1: 9:2
+-         drop(_1) -> [return: bb3, unwind: bb1]; // scope 0 at $DIR/inline-into-box-place.rs:9:1: 9:2
++         drop(_1) -> [return: bb2, unwind: bb1]; // scope 0 at $DIR/inline-into-box-place.rs:9:1: 9:2
       }
   
 -     bb3: {
--         StorageDead(_1);                 // bb3[0]: scope 0 at $DIR/inline-into-box-place.rs:9:1: 9:2
--         return;                          // bb3[1]: scope 0 at $DIR/inline-into-box-place.rs:9:2: 9:2
+-         StorageDead(_1);                 // scope 0 at $DIR/inline-into-box-place.rs:9:1: 9:2
+-         return;                          // scope 0 at $DIR/inline-into-box-place.rs:9:2: 9:2
 +     bb1 (cleanup): {
-+         resume;                          // bb1[0]: scope 0 at $DIR/inline-into-box-place.rs:7:1: 9:2
++         resume;                          // scope 0 at $DIR/inline-into-box-place.rs:7:1: 9:2
       }
   
 -     bb4 (cleanup): {
--         _3 = const alloc::alloc::box_free::<std::vec::Vec<u32>>(move (_2.0: std::ptr::Unique<std::vec::Vec<u32>>)) -> bb1; // bb4[0]: scope 0 at $DIR/inline-into-box-place.rs:8:42: 8:43
+-         _3 = const alloc::alloc::box_free::<std::vec::Vec<u32>>(move (_2.0: std::ptr::Unique<std::vec::Vec<u32>>)) -> bb1; // scope 0 at $DIR/inline-into-box-place.rs:8:42: 8:43
 -                                          // ty::Const
 -                                          // + ty: unsafe fn(std::ptr::Unique<std::vec::Vec<u32>>) {alloc::alloc::box_free::<std::vec::Vec<u32>>}
 -                                          // + val: Value(Scalar(<ZST>))
@@ -78,8 +75,8 @@
 -                                          // + span: $DIR/inline-into-box-place.rs:8:42: 8:43
 -                                          // + literal: Const { ty: unsafe fn(std::ptr::Unique<std::vec::Vec<u32>>) {alloc::alloc::box_free::<std::vec::Vec<u32>>}, val: Value(Scalar(<ZST>)) }
 +     bb2: {
-+         StorageDead(_1);                 // bb2[0]: scope 0 at $DIR/inline-into-box-place.rs:9:1: 9:2
-+         return;                          // bb2[1]: scope 0 at $DIR/inline-into-box-place.rs:9:2: 9:2
++         StorageDead(_1);                 // scope 0 at $DIR/inline-into-box-place.rs:9:1: 9:2
++         return;                          // scope 0 at $DIR/inline-into-box-place.rs:9:2: 9:2
       }
   }
   
diff --git a/src/test/mir-opt/inline/inline-into-box-place/64bit/rustc.main.Inline.diff b/src/test/mir-opt/inline/inline-into-box-place/64bit/rustc.main.Inline.diff
index b968b33ac52..a371fa214f2 100644
--- a/src/test/mir-opt/inline/inline-into-box-place/64bit/rustc.main.Inline.diff
+++ b/src/test/mir-opt/inline/inline-into-box-place/64bit/rustc.main.Inline.diff
@@ -14,12 +14,12 @@
 +     }
   
       bb0: {
-          StorageLive(_1);                 // bb0[0]: scope 0 at $DIR/inline-into-box-place.rs:8:9: 8:11
-          StorageLive(_2);                 // bb0[1]: scope 0 at $DIR/inline-into-box-place.rs:8:29: 8:43
-          _2 = Box(std::vec::Vec<u32>);    // bb0[2]: scope 0 at $DIR/inline-into-box-place.rs:8:29: 8:43
--         (*_2) = const std::vec::Vec::<u32>::new() -> [return: bb2, unwind: bb4]; // bb0[3]: scope 0 at $DIR/inline-into-box-place.rs:8:33: 8:43
-+         _4 = &mut (*_2);                 // bb0[3]: scope 0 at $DIR/inline-into-box-place.rs:8:33: 8:43
-+         ((*_4).0: alloc::raw_vec::RawVec<u32>) = const alloc::raw_vec::RawVec::<u32> { ptr: std::ptr::Unique::<u32> { pointer: {0x4 as *const u32}, _marker: std::marker::PhantomData::<u32> }, cap: 0usize, alloc: std::alloc::Global }; // bb0[4]: scope 2 at $SRC_DIR/liballoc/vec.rs:LL:COL
+          StorageLive(_1);                 // scope 0 at $DIR/inline-into-box-place.rs:8:9: 8:11
+          StorageLive(_2);                 // scope 0 at $DIR/inline-into-box-place.rs:8:29: 8:43
+          _2 = Box(std::vec::Vec<u32>);    // scope 0 at $DIR/inline-into-box-place.rs:8:29: 8:43
+-         (*_2) = const std::vec::Vec::<u32>::new() -> [return: bb2, unwind: bb4]; // scope 0 at $DIR/inline-into-box-place.rs:8:33: 8:43
++         _4 = &mut (*_2);                 // scope 0 at $DIR/inline-into-box-place.rs:8:33: 8:43
++         ((*_4).0: alloc::raw_vec::RawVec<u32>) = const alloc::raw_vec::RawVec::<u32> { ptr: std::ptr::Unique::<u32> { pointer: {0x4 as *const u32}, _marker: std::marker::PhantomData::<u32> }, cap: 0usize, alloc: std::alloc::Global }; // scope 2 at $SRC_DIR/liballoc/vec.rs:LL:COL
                                            // ty::Const
 -                                          // + ty: fn() -> std::vec::Vec<u32> {std::vec::Vec::<u32>::new}
 -                                          // + val: Value(Scalar(<ZST>))
@@ -32,45 +32,42 @@
 -     }
 - 
 -     bb1 (cleanup): {
--         resume;                          // bb1[0]: scope 0 at $DIR/inline-into-box-place.rs:7:1: 9:2
+-         resume;                          // scope 0 at $DIR/inline-into-box-place.rs:7:1: 9:2
 -     }
 - 
 -     bb2: {
--         _1 = move _2;                    // bb2[0]: scope 0 at $DIR/inline-into-box-place.rs:8:29: 8:43
--         StorageDead(_2);                 // bb2[1]: scope 0 at $DIR/inline-into-box-place.rs:8:42: 8:43
--         _0 = const ();                   // bb2[2]: scope 0 at $DIR/inline-into-box-place.rs:7:11: 9:2
 +                                          // + span: $SRC_DIR/liballoc/vec.rs:LL:COL
 +                                          // + user_ty: UserType(0)
 +                                          // + literal: Const { ty: alloc::raw_vec::RawVec<u32>, val: Value(ByRef { alloc: Allocation { bytes: [4, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0], relocations: Relocations(SortedMap { data: [] }), undef_mask: UndefMask { blocks: [65535], len: Size { raw: 16 } }, size: Size { raw: 16 }, align: Align { pow2: 3 }, mutability: Not, extra: () }, offset: Size { raw: 0 } }) }
-+         ((*_4).1: usize) = const 0usize; // bb0[5]: scope 2 at $SRC_DIR/liballoc/vec.rs:LL:COL
-                                           // ty::Const
++         ((*_4).1: usize) = const 0usize; // scope 2 at $SRC_DIR/liballoc/vec.rs:LL:COL
++                                          // ty::Const
 +                                          // + ty: usize
 +                                          // + val: Value(Scalar(0x0000000000000000))
 +                                          // mir::Constant
 +                                          // + span: $SRC_DIR/liballoc/vec.rs:LL:COL
 +                                          // + literal: Const { ty: usize, val: Value(Scalar(0x0000000000000000)) }
-+         _1 = move _2;                    // bb0[6]: scope 0 at $DIR/inline-into-box-place.rs:8:29: 8:43
-+         StorageDead(_2);                 // bb0[7]: scope 0 at $DIR/inline-into-box-place.rs:8:42: 8:43
-+         _0 = const ();                   // bb0[8]: scope 0 at $DIR/inline-into-box-place.rs:7:11: 9:2
-+                                          // ty::Const
+          _1 = move _2;                    // scope 0 at $DIR/inline-into-box-place.rs:8:29: 8:43
+          StorageDead(_2);                 // scope 0 at $DIR/inline-into-box-place.rs:8:42: 8:43
+          _0 = const ();                   // scope 0 at $DIR/inline-into-box-place.rs:7:11: 9:2
+                                           // ty::Const
                                            // + ty: ()
                                            // + val: Value(Scalar(<ZST>))
                                            // mir::Constant
                                            // + span: $DIR/inline-into-box-place.rs:7:11: 9:2
                                            // + literal: Const { ty: (), val: Value(Scalar(<ZST>)) }
--         drop(_1) -> [return: bb3, unwind: bb1]; // bb2[3]: scope 0 at $DIR/inline-into-box-place.rs:9:1: 9:2
-+         drop(_1) -> [return: bb2, unwind: bb1]; // bb0[9]: scope 0 at $DIR/inline-into-box-place.rs:9:1: 9:2
+-         drop(_1) -> [return: bb3, unwind: bb1]; // scope 0 at $DIR/inline-into-box-place.rs:9:1: 9:2
++         drop(_1) -> [return: bb2, unwind: bb1]; // scope 0 at $DIR/inline-into-box-place.rs:9:1: 9:2
       }
   
 -     bb3: {
--         StorageDead(_1);                 // bb3[0]: scope 0 at $DIR/inline-into-box-place.rs:9:1: 9:2
--         return;                          // bb3[1]: scope 0 at $DIR/inline-into-box-place.rs:9:2: 9:2
+-         StorageDead(_1);                 // scope 0 at $DIR/inline-into-box-place.rs:9:1: 9:2
+-         return;                          // scope 0 at $DIR/inline-into-box-place.rs:9:2: 9:2
 +     bb1 (cleanup): {
-+         resume;                          // bb1[0]: scope 0 at $DIR/inline-into-box-place.rs:7:1: 9:2
++         resume;                          // scope 0 at $DIR/inline-into-box-place.rs:7:1: 9:2
       }
   
 -     bb4 (cleanup): {
--         _3 = const alloc::alloc::box_free::<std::vec::Vec<u32>>(move (_2.0: std::ptr::Unique<std::vec::Vec<u32>>)) -> bb1; // bb4[0]: scope 0 at $DIR/inline-into-box-place.rs:8:42: 8:43
+-         _3 = const alloc::alloc::box_free::<std::vec::Vec<u32>>(move (_2.0: std::ptr::Unique<std::vec::Vec<u32>>)) -> bb1; // scope 0 at $DIR/inline-into-box-place.rs:8:42: 8:43
 -                                          // ty::Const
 -                                          // + ty: unsafe fn(std::ptr::Unique<std::vec::Vec<u32>>) {alloc::alloc::box_free::<std::vec::Vec<u32>>}
 -                                          // + val: Value(Scalar(<ZST>))
@@ -78,8 +75,8 @@
 -                                          // + span: $DIR/inline-into-box-place.rs:8:42: 8:43
 -                                          // + literal: Const { ty: unsafe fn(std::ptr::Unique<std::vec::Vec<u32>>) {alloc::alloc::box_free::<std::vec::Vec<u32>>}, val: Value(Scalar(<ZST>)) }
 +     bb2: {
-+         StorageDead(_1);                 // bb2[0]: scope 0 at $DIR/inline-into-box-place.rs:9:1: 9:2
-+         return;                          // bb2[1]: scope 0 at $DIR/inline-into-box-place.rs:9:2: 9:2
++         StorageDead(_1);                 // scope 0 at $DIR/inline-into-box-place.rs:9:1: 9:2
++         return;                          // scope 0 at $DIR/inline-into-box-place.rs:9:2: 9:2
       }
   }
   
diff --git a/src/test/mir-opt/inline/inline-retag/rustc.bar.Inline.after.mir b/src/test/mir-opt/inline/inline-retag/rustc.bar.Inline.after.mir
index ae2226bd183..e83cc92eb43 100644
--- a/src/test/mir-opt/inline/inline-retag/rustc.bar.Inline.after.mir
+++ b/src/test/mir-opt/inline/inline-retag/rustc.bar.Inline.after.mir
@@ -23,59 +23,59 @@ fn bar() -> bool {
     }
 
     bb0: {
-        StorageLive(_1);                 // bb0[0]: scope 0 at $DIR/inline-retag.rs:11:9: 11:10
-        _1 = const foo;                  // bb0[1]: scope 0 at $DIR/inline-retag.rs:11:13: 11:16
+        StorageLive(_1);                 // scope 0 at $DIR/inline-retag.rs:11:9: 11:10
+        _1 = const foo;                  // scope 0 at $DIR/inline-retag.rs:11:13: 11:16
                                          // ty::Const
                                          // + ty: for<'r, 's> fn(&'r i32, &'s i32) -> bool {foo}
                                          // + val: Value(Scalar(<ZST>))
                                          // mir::Constant
                                          // + span: $DIR/inline-retag.rs:11:13: 11:16
                                          // + literal: Const { ty: for<'r, 's> fn(&'r i32, &'s i32) -> bool {foo}, val: Value(Scalar(<ZST>)) }
-        StorageLive(_2);                 // bb0[2]: scope 1 at $DIR/inline-retag.rs:12:5: 12:6
-        _2 = _1;                         // bb0[3]: scope 1 at $DIR/inline-retag.rs:12:5: 12:6
-        StorageLive(_3);                 // bb0[4]: scope 1 at $DIR/inline-retag.rs:12:7: 12:9
-        StorageLive(_4);                 // bb0[5]: scope 1 at $DIR/inline-retag.rs:12:7: 12:9
-        _10 = const bar::promoted[1];    // bb0[6]: scope 1 at $DIR/inline-retag.rs:12:7: 12:9
+        StorageLive(_2);                 // scope 1 at $DIR/inline-retag.rs:12:5: 12:6
+        _2 = _1;                         // scope 1 at $DIR/inline-retag.rs:12:5: 12:6
+        StorageLive(_3);                 // scope 1 at $DIR/inline-retag.rs:12:7: 12:9
+        StorageLive(_4);                 // scope 1 at $DIR/inline-retag.rs:12:7: 12:9
+        _10 = const bar::promoted[1];    // scope 1 at $DIR/inline-retag.rs:12:7: 12:9
                                          // ty::Const
                                          // + ty: &i32
                                          // + val: Unevaluated(DefId(0:4 ~ inline_retag[317d]::bar[0]), [], Some(promoted[1]))
                                          // mir::Constant
                                          // + span: $DIR/inline-retag.rs:12:7: 12:9
                                          // + literal: Const { ty: &i32, val: Unevaluated(DefId(0:4 ~ inline_retag[317d]::bar[0]), [], Some(promoted[1])) }
-        Retag(_10);                      // bb0[7]: scope 1 at $DIR/inline-retag.rs:12:7: 12:9
-        _4 = &(*_10);                    // bb0[8]: scope 1 at $DIR/inline-retag.rs:12:7: 12:9
-        Retag(_4);                       // bb0[9]: scope 1 at $DIR/inline-retag.rs:12:7: 12:9
-        _3 = &(*_4);                     // bb0[10]: scope 1 at $DIR/inline-retag.rs:12:7: 12:9
-        Retag(_3);                       // bb0[11]: scope 1 at $DIR/inline-retag.rs:12:7: 12:9
-        StorageLive(_6);                 // bb0[12]: scope 1 at $DIR/inline-retag.rs:12:11: 12:14
-        StorageLive(_7);                 // bb0[13]: scope 1 at $DIR/inline-retag.rs:12:11: 12:14
-        _9 = const bar::promoted[0];     // bb0[14]: scope 1 at $DIR/inline-retag.rs:12:11: 12:14
+        Retag(_10);                      // scope 1 at $DIR/inline-retag.rs:12:7: 12:9
+        _4 = &(*_10);                    // scope 1 at $DIR/inline-retag.rs:12:7: 12:9
+        Retag(_4);                       // scope 1 at $DIR/inline-retag.rs:12:7: 12:9
+        _3 = &(*_4);                     // scope 1 at $DIR/inline-retag.rs:12:7: 12:9
+        Retag(_3);                       // scope 1 at $DIR/inline-retag.rs:12:7: 12:9
+        StorageLive(_6);                 // scope 1 at $DIR/inline-retag.rs:12:11: 12:14
+        StorageLive(_7);                 // scope 1 at $DIR/inline-retag.rs:12:11: 12:14
+        _9 = const bar::promoted[0];     // scope 1 at $DIR/inline-retag.rs:12:11: 12:14
                                          // ty::Const
                                          // + ty: &i32
                                          // + val: Unevaluated(DefId(0:4 ~ inline_retag[317d]::bar[0]), [], Some(promoted[0]))
                                          // mir::Constant
                                          // + span: $DIR/inline-retag.rs:12:11: 12:14
                                          // + literal: Const { ty: &i32, val: Unevaluated(DefId(0:4 ~ inline_retag[317d]::bar[0]), [], Some(promoted[0])) }
-        Retag(_9);                       // bb0[15]: scope 1 at $DIR/inline-retag.rs:12:11: 12:14
-        _7 = &(*_9);                     // bb0[16]: scope 1 at $DIR/inline-retag.rs:12:11: 12:14
-        Retag(_7);                       // bb0[17]: scope 1 at $DIR/inline-retag.rs:12:11: 12:14
-        _6 = &(*_7);                     // bb0[18]: scope 1 at $DIR/inline-retag.rs:12:11: 12:14
-        Retag(_6);                       // bb0[19]: scope 1 at $DIR/inline-retag.rs:12:11: 12:14
-        Retag(_3);                       // bb0[20]: scope 2 at $DIR/inline-retag.rs:16:1: 18:2
-        Retag(_6);                       // bb0[21]: scope 2 at $DIR/inline-retag.rs:16:1: 18:2
-        StorageLive(_11);                // bb0[22]: scope 2 at $DIR/inline-retag.rs:17:5: 17:7
-        _11 = (*_3);                     // bb0[23]: scope 2 at $DIR/inline-retag.rs:17:5: 17:7
-        StorageLive(_12);                // bb0[24]: scope 2 at $DIR/inline-retag.rs:17:11: 17:13
-        _12 = (*_6);                     // bb0[25]: scope 2 at $DIR/inline-retag.rs:17:11: 17:13
-        _0 = Eq(move _11, move _12);     // bb0[26]: scope 2 at $DIR/inline-retag.rs:17:5: 17:13
-        StorageDead(_12);                // bb0[27]: scope 2 at $DIR/inline-retag.rs:17:12: 17:13
-        StorageDead(_11);                // bb0[28]: scope 2 at $DIR/inline-retag.rs:17:12: 17:13
-        StorageDead(_6);                 // bb0[29]: scope 1 at $DIR/inline-retag.rs:12:14: 12:15
-        StorageDead(_3);                 // bb0[30]: scope 1 at $DIR/inline-retag.rs:12:14: 12:15
-        StorageDead(_2);                 // bb0[31]: scope 1 at $DIR/inline-retag.rs:12:14: 12:15
-        StorageDead(_1);                 // bb0[32]: scope 0 at $DIR/inline-retag.rs:13:1: 13:2
-        StorageDead(_7);                 // bb0[33]: scope 0 at $DIR/inline-retag.rs:13:1: 13:2
-        StorageDead(_4);                 // bb0[34]: scope 0 at $DIR/inline-retag.rs:13:1: 13:2
-        return;                          // bb0[35]: scope 0 at $DIR/inline-retag.rs:13:2: 13:2
+        Retag(_9);                       // scope 1 at $DIR/inline-retag.rs:12:11: 12:14
+        _7 = &(*_9);                     // scope 1 at $DIR/inline-retag.rs:12:11: 12:14
+        Retag(_7);                       // scope 1 at $DIR/inline-retag.rs:12:11: 12:14
+        _6 = &(*_7);                     // scope 1 at $DIR/inline-retag.rs:12:11: 12:14
+        Retag(_6);                       // scope 1 at $DIR/inline-retag.rs:12:11: 12:14
+        Retag(_3);                       // scope 2 at $DIR/inline-retag.rs:16:1: 18:2
+        Retag(_6);                       // scope 2 at $DIR/inline-retag.rs:16:1: 18:2
+        StorageLive(_11);                // scope 2 at $DIR/inline-retag.rs:17:5: 17:7
+        _11 = (*_3);                     // scope 2 at $DIR/inline-retag.rs:17:5: 17:7
+        StorageLive(_12);                // scope 2 at $DIR/inline-retag.rs:17:11: 17:13
+        _12 = (*_6);                     // scope 2 at $DIR/inline-retag.rs:17:11: 17:13
+        _0 = Eq(move _11, move _12);     // scope 2 at $DIR/inline-retag.rs:17:5: 17:13
+        StorageDead(_12);                // scope 2 at $DIR/inline-retag.rs:17:12: 17:13
+        StorageDead(_11);                // scope 2 at $DIR/inline-retag.rs:17:12: 17:13
+        StorageDead(_6);                 // scope 1 at $DIR/inline-retag.rs:12:14: 12:15
+        StorageDead(_3);                 // scope 1 at $DIR/inline-retag.rs:12:14: 12:15
+        StorageDead(_2);                 // scope 1 at $DIR/inline-retag.rs:12:14: 12:15
+        StorageDead(_1);                 // scope 0 at $DIR/inline-retag.rs:13:1: 13:2
+        StorageDead(_7);                 // scope 0 at $DIR/inline-retag.rs:13:1: 13:2
+        StorageDead(_4);                 // scope 0 at $DIR/inline-retag.rs:13:1: 13:2
+        return;                          // scope 0 at $DIR/inline-retag.rs:13:2: 13:2
     }
 }
diff --git a/src/test/mir-opt/inline/inline-specialization/rustc.main.Inline.diff b/src/test/mir-opt/inline/inline-specialization/rustc.main.Inline.diff
index 35c400035a6..a3e0d0a57a7 100644
--- a/src/test/mir-opt/inline/inline-specialization/rustc.main.Inline.diff
+++ b/src/test/mir-opt/inline/inline-specialization/rustc.main.Inline.diff
@@ -11,9 +11,9 @@
 +     }
   
       bb0: {
-          StorageLive(_1);                 // bb0[0]: scope 0 at $DIR/inline-specialization.rs:5:9: 5:10
--         _1 = const <std::vec::Vec<()> as Foo>::bar() -> bb1; // bb0[1]: scope 0 at $DIR/inline-specialization.rs:5:13: 5:38
-+         _1 = const 123u32;               // bb0[1]: scope 2 at $DIR/inline-specialization.rs:14:31: 14:34
+          StorageLive(_1);                 // scope 0 at $DIR/inline-specialization.rs:5:9: 5:10
+-         _1 = const <std::vec::Vec<()> as Foo>::bar() -> bb1; // scope 0 at $DIR/inline-specialization.rs:5:13: 5:38
++         _1 = const 123u32;               // scope 2 at $DIR/inline-specialization.rs:14:31: 14:34
                                            // ty::Const
 -                                          // + ty: fn() -> u32 {<std::vec::Vec<()> as Foo>::bar}
 -                                          // + val: Value(Scalar(<ZST>))
@@ -25,20 +25,17 @@
 -     }
 - 
 -     bb1: {
--         _0 = const ();                   // bb1[0]: scope 0 at $DIR/inline-specialization.rs:4:11: 6:2
 +                                          // + span: $DIR/inline-specialization.rs:14:31: 14:34
 +                                          // + literal: Const { ty: u32, val: Value(Scalar(0x0000007b)) }
-+         _0 = const ();                   // bb0[2]: scope 0 at $DIR/inline-specialization.rs:4:11: 6:2
+          _0 = const ();                   // scope 0 at $DIR/inline-specialization.rs:4:11: 6:2
                                            // ty::Const
                                            // + ty: ()
                                            // + val: Value(Scalar(<ZST>))
                                            // mir::Constant
                                            // + span: $DIR/inline-specialization.rs:4:11: 6:2
                                            // + literal: Const { ty: (), val: Value(Scalar(<ZST>)) }
--         StorageDead(_1);                 // bb1[1]: scope 0 at $DIR/inline-specialization.rs:6:1: 6:2
--         return;                          // bb1[2]: scope 0 at $DIR/inline-specialization.rs:6:2: 6:2
-+         StorageDead(_1);                 // bb0[3]: scope 0 at $DIR/inline-specialization.rs:6:1: 6:2
-+         return;                          // bb0[4]: scope 0 at $DIR/inline-specialization.rs:6:2: 6:2
+          StorageDead(_1);                 // scope 0 at $DIR/inline-specialization.rs:6:1: 6:2
+          return;                          // scope 0 at $DIR/inline-specialization.rs:6:2: 6:2
       }
   }
   
diff --git a/src/test/mir-opt/inline/inline-trait-method/rustc.test.Inline.after.mir b/src/test/mir-opt/inline/inline-trait-method/rustc.test.Inline.after.mir
index 488303e09ef..8acc5ad5c09 100644
--- a/src/test/mir-opt/inline/inline-trait-method/rustc.test.Inline.after.mir
+++ b/src/test/mir-opt/inline/inline-trait-method/rustc.test.Inline.after.mir
@@ -6,9 +6,9 @@ fn test(_1: &dyn X) -> u32 {
     let mut _2: &dyn X;                  // in scope 0 at $DIR/inline-trait-method.rs:9:5: 9:6
 
     bb0: {
-        StorageLive(_2);                 // bb0[0]: scope 0 at $DIR/inline-trait-method.rs:9:5: 9:6
-        _2 = &(*_1);                     // bb0[1]: scope 0 at $DIR/inline-trait-method.rs:9:5: 9:6
-        _0 = const <dyn X as X>::y(move _2) -> bb1; // bb0[2]: scope 0 at $DIR/inline-trait-method.rs:9:5: 9:10
+        StorageLive(_2);                 // scope 0 at $DIR/inline-trait-method.rs:9:5: 9:6
+        _2 = &(*_1);                     // scope 0 at $DIR/inline-trait-method.rs:9:5: 9:6
+        _0 = const <dyn X as X>::y(move _2) -> bb1; // scope 0 at $DIR/inline-trait-method.rs:9:5: 9:10
                                          // ty::Const
                                          // + ty: for<'r> fn(&'r dyn X) -> u32 {<dyn X as X>::y}
                                          // + val: Value(Scalar(<ZST>))
@@ -18,7 +18,7 @@ fn test(_1: &dyn X) -> u32 {
     }
 
     bb1: {
-        StorageDead(_2);                 // bb1[0]: scope 0 at $DIR/inline-trait-method.rs:9:9: 9:10
-        return;                          // bb1[1]: scope 0 at $DIR/inline-trait-method.rs:10:2: 10:2
+        StorageDead(_2);                 // scope 0 at $DIR/inline-trait-method.rs:9:9: 9:10
+        return;                          // scope 0 at $DIR/inline-trait-method.rs:10:2: 10:2
     }
 }
diff --git a/src/test/mir-opt/inline/inline-trait-method_2/rustc.test2.Inline.after.mir b/src/test/mir-opt/inline/inline-trait-method_2/rustc.test2.Inline.after.mir
index aca47198aa9..afea1d5ebff 100644
--- a/src/test/mir-opt/inline/inline-trait-method_2/rustc.test2.Inline.after.mir
+++ b/src/test/mir-opt/inline/inline-trait-method_2/rustc.test2.Inline.after.mir
@@ -10,12 +10,12 @@ fn test2(_1: &dyn X) -> bool {
     }
 
     bb0: {
-        StorageLive(_2);                 // bb0[0]: scope 0 at $DIR/inline-trait-method_2.rs:5:10: 5:11
-        StorageLive(_3);                 // bb0[1]: scope 0 at $DIR/inline-trait-method_2.rs:5:10: 5:11
-        _3 = &(*_1);                     // bb0[2]: scope 0 at $DIR/inline-trait-method_2.rs:5:10: 5:11
-        _2 = move _3 as &dyn X (Pointer(Unsize)); // bb0[3]: scope 0 at $DIR/inline-trait-method_2.rs:5:10: 5:11
-        StorageDead(_3);                 // bb0[4]: scope 0 at $DIR/inline-trait-method_2.rs:5:10: 5:11
-        _0 = const <dyn X as X>::y(move _2) -> bb1; // bb0[5]: scope 1 at $DIR/inline-trait-method_2.rs:10:5: 10:10
+        StorageLive(_2);                 // scope 0 at $DIR/inline-trait-method_2.rs:5:10: 5:11
+        StorageLive(_3);                 // scope 0 at $DIR/inline-trait-method_2.rs:5:10: 5:11
+        _3 = &(*_1);                     // scope 0 at $DIR/inline-trait-method_2.rs:5:10: 5:11
+        _2 = move _3 as &dyn X (Pointer(Unsize)); // scope 0 at $DIR/inline-trait-method_2.rs:5:10: 5:11
+        StorageDead(_3);                 // scope 0 at $DIR/inline-trait-method_2.rs:5:10: 5:11
+        _0 = const <dyn X as X>::y(move _2) -> bb1; // scope 1 at $DIR/inline-trait-method_2.rs:10:5: 10:10
                                          // ty::Const
                                          // + ty: for<'r> fn(&'r dyn X) -> bool {<dyn X as X>::y}
                                          // + val: Value(Scalar(<ZST>))
@@ -25,7 +25,7 @@ fn test2(_1: &dyn X) -> bool {
     }
 
     bb1: {
-        StorageDead(_2);                 // bb1[0]: scope 0 at $DIR/inline-trait-method_2.rs:5:11: 5:12
-        return;                          // bb1[1]: scope 0 at $DIR/inline-trait-method_2.rs:6:2: 6:2
+        StorageDead(_2);                 // scope 0 at $DIR/inline-trait-method_2.rs:5:11: 5:12
+        return;                          // scope 0 at $DIR/inline-trait-method_2.rs:6:2: 6:2
     }
 }
diff --git a/src/test/mir-opt/inline/issue-58867-inline-as-ref-as-mut/rustc.a.Inline.after.mir b/src/test/mir-opt/inline/issue-58867-inline-as-ref-as-mut/rustc.a.Inline.after.mir
index c5d44cbafac..d6c5220e28f 100644
--- a/src/test/mir-opt/inline/issue-58867-inline-as-ref-as-mut/rustc.a.Inline.after.mir
+++ b/src/test/mir-opt/inline/issue-58867-inline-as-ref-as-mut/rustc.a.Inline.after.mir
@@ -12,19 +12,19 @@ fn a(_1: &mut [T]) -> &mut [T] {
     }
 
     bb0: {
-        StorageLive(_2);                 // bb0[0]: scope 0 at $DIR/issue-58867-inline-as-ref-as-mut.rs:3:5: 3:15
-        StorageLive(_3);                 // bb0[1]: scope 0 at $DIR/issue-58867-inline-as-ref-as-mut.rs:3:5: 3:15
-        StorageLive(_4);                 // bb0[2]: scope 0 at $DIR/issue-58867-inline-as-ref-as-mut.rs:3:5: 3:6
-        _4 = &mut (*_1);                 // bb0[3]: scope 0 at $DIR/issue-58867-inline-as-ref-as-mut.rs:3:5: 3:6
-        StorageLive(_5);                 // bb0[4]: scope 1 at $SRC_DIR/libcore/convert/mod.rs:LL:COL
-        _5 = _4;                         // bb0[5]: scope 1 at $SRC_DIR/libcore/convert/mod.rs:LL:COL
-        _3 = _5;                         // bb0[6]: scope 1 at $SRC_DIR/libcore/convert/mod.rs:LL:COL
-        StorageDead(_5);                 // bb0[7]: scope 1 at $SRC_DIR/libcore/convert/mod.rs:LL:COL
-        _2 = &mut (*_3);                 // bb0[8]: scope 0 at $DIR/issue-58867-inline-as-ref-as-mut.rs:3:5: 3:15
-        StorageDead(_4);                 // bb0[9]: scope 0 at $DIR/issue-58867-inline-as-ref-as-mut.rs:3:14: 3:15
-        _0 = &mut (*_2);                 // bb0[10]: scope 0 at $DIR/issue-58867-inline-as-ref-as-mut.rs:3:5: 3:15
-        StorageDead(_3);                 // bb0[11]: scope 0 at $DIR/issue-58867-inline-as-ref-as-mut.rs:4:1: 4:2
-        StorageDead(_2);                 // bb0[12]: scope 0 at $DIR/issue-58867-inline-as-ref-as-mut.rs:4:1: 4:2
-        return;                          // bb0[13]: scope 0 at $DIR/issue-58867-inline-as-ref-as-mut.rs:4:2: 4:2
+        StorageLive(_2);                 // scope 0 at $DIR/issue-58867-inline-as-ref-as-mut.rs:3:5: 3:15
+        StorageLive(_3);                 // scope 0 at $DIR/issue-58867-inline-as-ref-as-mut.rs:3:5: 3:15
+        StorageLive(_4);                 // scope 0 at $DIR/issue-58867-inline-as-ref-as-mut.rs:3:5: 3:6
+        _4 = &mut (*_1);                 // scope 0 at $DIR/issue-58867-inline-as-ref-as-mut.rs:3:5: 3:6
+        StorageLive(_5);                 // scope 1 at $SRC_DIR/libcore/convert/mod.rs:LL:COL
+        _5 = _4;                         // scope 1 at $SRC_DIR/libcore/convert/mod.rs:LL:COL
+        _3 = _5;                         // scope 1 at $SRC_DIR/libcore/convert/mod.rs:LL:COL
+        StorageDead(_5);                 // scope 1 at $SRC_DIR/libcore/convert/mod.rs:LL:COL
+        _2 = &mut (*_3);                 // scope 0 at $DIR/issue-58867-inline-as-ref-as-mut.rs:3:5: 3:15
+        StorageDead(_4);                 // scope 0 at $DIR/issue-58867-inline-as-ref-as-mut.rs:3:14: 3:15
+        _0 = &mut (*_2);                 // scope 0 at $DIR/issue-58867-inline-as-ref-as-mut.rs:3:5: 3:15
+        StorageDead(_3);                 // scope 0 at $DIR/issue-58867-inline-as-ref-as-mut.rs:4:1: 4:2
+        StorageDead(_2);                 // scope 0 at $DIR/issue-58867-inline-as-ref-as-mut.rs:4:1: 4:2
+        return;                          // scope 0 at $DIR/issue-58867-inline-as-ref-as-mut.rs:4:2: 4:2
     }
 }
diff --git a/src/test/mir-opt/inline/issue-58867-inline-as-ref-as-mut/rustc.b.Inline.after.mir b/src/test/mir-opt/inline/issue-58867-inline-as-ref-as-mut/rustc.b.Inline.after.mir
index 8384b949b95..2270abc288d 100644
--- a/src/test/mir-opt/inline/issue-58867-inline-as-ref-as-mut/rustc.b.Inline.after.mir
+++ b/src/test/mir-opt/inline/issue-58867-inline-as-ref-as-mut/rustc.b.Inline.after.mir
@@ -13,22 +13,22 @@ fn b(_1: &mut std::boxed::Box<T>) -> &mut T {
     }
 
     bb0: {
-        StorageLive(_2);                 // bb0[0]: scope 0 at $DIR/issue-58867-inline-as-ref-as-mut.rs:8:5: 8:15
-        StorageLive(_3);                 // bb0[1]: scope 0 at $DIR/issue-58867-inline-as-ref-as-mut.rs:8:5: 8:15
-        StorageLive(_4);                 // bb0[2]: scope 0 at $DIR/issue-58867-inline-as-ref-as-mut.rs:8:5: 8:6
-        _4 = &mut (*_1);                 // bb0[3]: scope 0 at $DIR/issue-58867-inline-as-ref-as-mut.rs:8:5: 8:6
-        StorageLive(_5);                 // bb0[4]: scope 1 at $SRC_DIR/liballoc/boxed.rs:LL:COL
-        StorageLive(_6);                 // bb0[5]: scope 1 at $SRC_DIR/liballoc/boxed.rs:LL:COL
-        _6 = &mut (*(*_4));              // bb0[6]: scope 1 at $SRC_DIR/liballoc/boxed.rs:LL:COL
-        _5 = _6;                         // bb0[7]: scope 1 at $SRC_DIR/liballoc/boxed.rs:LL:COL
-        _3 = _5;                         // bb0[8]: scope 1 at $SRC_DIR/liballoc/boxed.rs:LL:COL
-        StorageDead(_6);                 // bb0[9]: scope 1 at $SRC_DIR/liballoc/boxed.rs:LL:COL
-        StorageDead(_5);                 // bb0[10]: scope 1 at $SRC_DIR/liballoc/boxed.rs:LL:COL
-        _2 = &mut (*_3);                 // bb0[11]: scope 0 at $DIR/issue-58867-inline-as-ref-as-mut.rs:8:5: 8:15
-        StorageDead(_4);                 // bb0[12]: scope 0 at $DIR/issue-58867-inline-as-ref-as-mut.rs:8:14: 8:15
-        _0 = &mut (*_2);                 // bb0[13]: scope 0 at $DIR/issue-58867-inline-as-ref-as-mut.rs:8:5: 8:15
-        StorageDead(_3);                 // bb0[14]: scope 0 at $DIR/issue-58867-inline-as-ref-as-mut.rs:9:1: 9:2
-        StorageDead(_2);                 // bb0[15]: scope 0 at $DIR/issue-58867-inline-as-ref-as-mut.rs:9:1: 9:2
-        return;                          // bb0[16]: scope 0 at $DIR/issue-58867-inline-as-ref-as-mut.rs:9:2: 9:2
+        StorageLive(_2);                 // scope 0 at $DIR/issue-58867-inline-as-ref-as-mut.rs:8:5: 8:15
+        StorageLive(_3);                 // scope 0 at $DIR/issue-58867-inline-as-ref-as-mut.rs:8:5: 8:15
+        StorageLive(_4);                 // scope 0 at $DIR/issue-58867-inline-as-ref-as-mut.rs:8:5: 8:6
+        _4 = &mut (*_1);                 // scope 0 at $DIR/issue-58867-inline-as-ref-as-mut.rs:8:5: 8:6
+        StorageLive(_5);                 // scope 1 at $SRC_DIR/liballoc/boxed.rs:LL:COL
+        StorageLive(_6);                 // scope 1 at $SRC_DIR/liballoc/boxed.rs:LL:COL
+        _6 = &mut (*(*_4));              // scope 1 at $SRC_DIR/liballoc/boxed.rs:LL:COL
+        _5 = _6;                         // scope 1 at $SRC_DIR/liballoc/boxed.rs:LL:COL
+        _3 = _5;                         // scope 1 at $SRC_DIR/liballoc/boxed.rs:LL:COL
+        StorageDead(_6);                 // scope 1 at $SRC_DIR/liballoc/boxed.rs:LL:COL
+        StorageDead(_5);                 // scope 1 at $SRC_DIR/liballoc/boxed.rs:LL:COL
+        _2 = &mut (*_3);                 // scope 0 at $DIR/issue-58867-inline-as-ref-as-mut.rs:8:5: 8:15
+        StorageDead(_4);                 // scope 0 at $DIR/issue-58867-inline-as-ref-as-mut.rs:8:14: 8:15
+        _0 = &mut (*_2);                 // scope 0 at $DIR/issue-58867-inline-as-ref-as-mut.rs:8:5: 8:15
+        StorageDead(_3);                 // scope 0 at $DIR/issue-58867-inline-as-ref-as-mut.rs:9:1: 9:2
+        StorageDead(_2);                 // scope 0 at $DIR/issue-58867-inline-as-ref-as-mut.rs:9:1: 9:2
+        return;                          // scope 0 at $DIR/issue-58867-inline-as-ref-as-mut.rs:9:2: 9:2
     }
 }
diff --git a/src/test/mir-opt/inline/issue-58867-inline-as-ref-as-mut/rustc.c.Inline.after.mir b/src/test/mir-opt/inline/issue-58867-inline-as-ref-as-mut/rustc.c.Inline.after.mir
index 5adb4a68312..67aea63bd95 100644
--- a/src/test/mir-opt/inline/issue-58867-inline-as-ref-as-mut/rustc.c.Inline.after.mir
+++ b/src/test/mir-opt/inline/issue-58867-inline-as-ref-as-mut/rustc.c.Inline.after.mir
@@ -10,13 +10,13 @@ fn c(_1: &[T]) -> &[T] {
     }
 
     bb0: {
-        StorageLive(_2);                 // bb0[0]: scope 0 at $DIR/issue-58867-inline-as-ref-as-mut.rs:13:5: 13:15
-        StorageLive(_3);                 // bb0[1]: scope 0 at $DIR/issue-58867-inline-as-ref-as-mut.rs:13:5: 13:6
-        _3 = &(*_1);                     // bb0[2]: scope 0 at $DIR/issue-58867-inline-as-ref-as-mut.rs:13:5: 13:6
-        _2 = _3;                         // bb0[3]: scope 1 at $SRC_DIR/libcore/convert/mod.rs:LL:COL
-        _0 = &(*_2);                     // bb0[4]: scope 0 at $DIR/issue-58867-inline-as-ref-as-mut.rs:13:5: 13:15
-        StorageDead(_3);                 // bb0[5]: scope 0 at $DIR/issue-58867-inline-as-ref-as-mut.rs:13:14: 13:15
-        StorageDead(_2);                 // bb0[6]: scope 0 at $DIR/issue-58867-inline-as-ref-as-mut.rs:14:1: 14:2
-        return;                          // bb0[7]: scope 0 at $DIR/issue-58867-inline-as-ref-as-mut.rs:14:2: 14:2
+        StorageLive(_2);                 // scope 0 at $DIR/issue-58867-inline-as-ref-as-mut.rs:13:5: 13:15
+        StorageLive(_3);                 // scope 0 at $DIR/issue-58867-inline-as-ref-as-mut.rs:13:5: 13:6
+        _3 = &(*_1);                     // scope 0 at $DIR/issue-58867-inline-as-ref-as-mut.rs:13:5: 13:6
+        _2 = _3;                         // scope 1 at $SRC_DIR/libcore/convert/mod.rs:LL:COL
+        _0 = &(*_2);                     // scope 0 at $DIR/issue-58867-inline-as-ref-as-mut.rs:13:5: 13:15
+        StorageDead(_3);                 // scope 0 at $DIR/issue-58867-inline-as-ref-as-mut.rs:13:14: 13:15
+        StorageDead(_2);                 // scope 0 at $DIR/issue-58867-inline-as-ref-as-mut.rs:14:1: 14:2
+        return;                          // scope 0 at $DIR/issue-58867-inline-as-ref-as-mut.rs:14:2: 14:2
     }
 }
diff --git a/src/test/mir-opt/inline/issue-58867-inline-as-ref-as-mut/rustc.d.Inline.after.mir b/src/test/mir-opt/inline/issue-58867-inline-as-ref-as-mut/rustc.d.Inline.after.mir
index d4d62dd788e..a929cb1c2fb 100644
--- a/src/test/mir-opt/inline/issue-58867-inline-as-ref-as-mut/rustc.d.Inline.after.mir
+++ b/src/test/mir-opt/inline/issue-58867-inline-as-ref-as-mut/rustc.d.Inline.after.mir
@@ -11,16 +11,16 @@ fn d(_1: &std::boxed::Box<T>) -> &T {
     }
 
     bb0: {
-        StorageLive(_2);                 // bb0[0]: scope 0 at $DIR/issue-58867-inline-as-ref-as-mut.rs:18:5: 18:15
-        StorageLive(_3);                 // bb0[1]: scope 0 at $DIR/issue-58867-inline-as-ref-as-mut.rs:18:5: 18:6
-        _3 = &(*_1);                     // bb0[2]: scope 0 at $DIR/issue-58867-inline-as-ref-as-mut.rs:18:5: 18:6
-        StorageLive(_4);                 // bb0[3]: scope 1 at $SRC_DIR/liballoc/boxed.rs:LL:COL
-        _4 = &(*(*_3));                  // bb0[4]: scope 1 at $SRC_DIR/liballoc/boxed.rs:LL:COL
-        _2 = _4;                         // bb0[5]: scope 1 at $SRC_DIR/liballoc/boxed.rs:LL:COL
-        StorageDead(_4);                 // bb0[6]: scope 1 at $SRC_DIR/liballoc/boxed.rs:LL:COL
-        _0 = &(*_2);                     // bb0[7]: scope 0 at $DIR/issue-58867-inline-as-ref-as-mut.rs:18:5: 18:15
-        StorageDead(_3);                 // bb0[8]: scope 0 at $DIR/issue-58867-inline-as-ref-as-mut.rs:18:14: 18:15
-        StorageDead(_2);                 // bb0[9]: scope 0 at $DIR/issue-58867-inline-as-ref-as-mut.rs:19:1: 19:2
-        return;                          // bb0[10]: scope 0 at $DIR/issue-58867-inline-as-ref-as-mut.rs:19:2: 19:2
+        StorageLive(_2);                 // scope 0 at $DIR/issue-58867-inline-as-ref-as-mut.rs:18:5: 18:15
+        StorageLive(_3);                 // scope 0 at $DIR/issue-58867-inline-as-ref-as-mut.rs:18:5: 18:6
+        _3 = &(*_1);                     // scope 0 at $DIR/issue-58867-inline-as-ref-as-mut.rs:18:5: 18:6
+        StorageLive(_4);                 // scope 1 at $SRC_DIR/liballoc/boxed.rs:LL:COL
+        _4 = &(*(*_3));                  // scope 1 at $SRC_DIR/liballoc/boxed.rs:LL:COL
+        _2 = _4;                         // scope 1 at $SRC_DIR/liballoc/boxed.rs:LL:COL
+        StorageDead(_4);                 // scope 1 at $SRC_DIR/liballoc/boxed.rs:LL:COL
+        _0 = &(*_2);                     // scope 0 at $DIR/issue-58867-inline-as-ref-as-mut.rs:18:5: 18:15
+        StorageDead(_3);                 // scope 0 at $DIR/issue-58867-inline-as-ref-as-mut.rs:18:14: 18:15
+        StorageDead(_2);                 // scope 0 at $DIR/issue-58867-inline-as-ref-as-mut.rs:19:1: 19:2
+        return;                          // scope 0 at $DIR/issue-58867-inline-as-ref-as-mut.rs:19:2: 19:2
     }
 }
diff --git a/src/test/mir-opt/issue-38669/rustc.main.SimplifyCfg-initial.after.mir b/src/test/mir-opt/issue-38669/rustc.main.SimplifyCfg-initial.after.mir
index 62d2f8db7a4..fa7bd2563ae 100644
--- a/src/test/mir-opt/issue-38669/rustc.main.SimplifyCfg-initial.after.mir
+++ b/src/test/mir-opt/issue-38669/rustc.main.SimplifyCfg-initial.after.mir
@@ -12,76 +12,76 @@ fn main() -> () {
     }
 
     bb0: {
-        StorageLive(_1);                 // bb0[0]: scope 0 at $DIR/issue-38669.rs:5:9: 5:25
-        _1 = const false;                // bb0[1]: scope 0 at $DIR/issue-38669.rs:5:28: 5:33
+        StorageLive(_1);                 // scope 0 at $DIR/issue-38669.rs:5:9: 5:25
+        _1 = const false;                // scope 0 at $DIR/issue-38669.rs:5:28: 5:33
                                          // ty::Const
                                          // + ty: bool
                                          // + val: Value(Scalar(0x00))
                                          // mir::Constant
                                          // + span: $DIR/issue-38669.rs:5:28: 5:33
                                          // + literal: Const { ty: bool, val: Value(Scalar(0x00)) }
-        FakeRead(ForLet, _1);            // bb0[2]: scope 0 at $DIR/issue-38669.rs:5:9: 5:25
-        goto -> bb2;                     // bb0[3]: scope 1 at $DIR/issue-38669.rs:6:5: 11:6
+        FakeRead(ForLet, _1);            // scope 0 at $DIR/issue-38669.rs:5:9: 5:25
+        goto -> bb2;                     // scope 1 at $DIR/issue-38669.rs:6:5: 11:6
     }
 
     bb1 (cleanup): {
-        resume;                          // bb1[0]: scope 0 at $DIR/issue-38669.rs:4:1: 12:2
+        resume;                          // scope 0 at $DIR/issue-38669.rs:4:1: 12:2
     }
 
     bb2: {
-        falseUnwind -> [real: bb3, cleanup: bb1]; // bb2[0]: scope 1 at $DIR/issue-38669.rs:6:5: 11:6
+        falseUnwind -> [real: bb3, cleanup: bb1]; // scope 1 at $DIR/issue-38669.rs:6:5: 11:6
     }
 
     bb3: {
-        StorageLive(_3);                 // bb3[0]: scope 1 at $DIR/issue-38669.rs:7:9: 9:10
-        StorageLive(_4);                 // bb3[1]: scope 1 at $DIR/issue-38669.rs:7:12: 7:24
-        _4 = _1;                         // bb3[2]: scope 1 at $DIR/issue-38669.rs:7:12: 7:24
-        FakeRead(ForMatchedPlace, _4);   // bb3[3]: scope 1 at $DIR/issue-38669.rs:7:12: 7:24
-        switchInt(_4) -> [false: bb5, otherwise: bb4]; // bb3[4]: scope 1 at $DIR/issue-38669.rs:7:9: 9:10
+        StorageLive(_3);                 // scope 1 at $DIR/issue-38669.rs:7:9: 9:10
+        StorageLive(_4);                 // scope 1 at $DIR/issue-38669.rs:7:12: 7:24
+        _4 = _1;                         // scope 1 at $DIR/issue-38669.rs:7:12: 7:24
+        FakeRead(ForMatchedPlace, _4);   // scope 1 at $DIR/issue-38669.rs:7:12: 7:24
+        switchInt(_4) -> [false: bb5, otherwise: bb4]; // scope 1 at $DIR/issue-38669.rs:7:9: 9:10
     }
 
     bb4: {
-        falseEdges -> [real: bb6, imaginary: bb5]; // bb4[0]: scope 1 at $DIR/issue-38669.rs:7:9: 9:10
+        falseEdges -> [real: bb6, imaginary: bb5]; // scope 1 at $DIR/issue-38669.rs:7:9: 9:10
     }
 
     bb5: {
-        _3 = const ();                   // bb5[0]: scope 1 at $DIR/issue-38669.rs:7:9: 9:10
+        _3 = const ();                   // scope 1 at $DIR/issue-38669.rs:7:9: 9:10
                                          // ty::Const
                                          // + ty: ()
                                          // + val: Value(Scalar(<ZST>))
                                          // mir::Constant
                                          // + span: $DIR/issue-38669.rs:7:9: 9:10
                                          // + literal: Const { ty: (), val: Value(Scalar(<ZST>)) }
-        StorageDead(_4);                 // bb5[1]: scope 1 at $DIR/issue-38669.rs:9:9: 9:10
-        StorageDead(_3);                 // bb5[2]: scope 1 at $DIR/issue-38669.rs:9:9: 9:10
-        _1 = const true;                 // bb5[3]: scope 1 at $DIR/issue-38669.rs:10:9: 10:28
+        StorageDead(_4);                 // scope 1 at $DIR/issue-38669.rs:9:9: 9:10
+        StorageDead(_3);                 // scope 1 at $DIR/issue-38669.rs:9:9: 9:10
+        _1 = const true;                 // scope 1 at $DIR/issue-38669.rs:10:9: 10:28
                                          // ty::Const
                                          // + ty: bool
                                          // + val: Value(Scalar(0x01))
                                          // mir::Constant
                                          // + span: $DIR/issue-38669.rs:10:24: 10:28
                                          // + literal: Const { ty: bool, val: Value(Scalar(0x01)) }
-        _2 = const ();                   // bb5[4]: scope 1 at $DIR/issue-38669.rs:6:10: 11:6
+        _2 = const ();                   // scope 1 at $DIR/issue-38669.rs:6:10: 11:6
                                          // ty::Const
                                          // + ty: ()
                                          // + val: Value(Scalar(<ZST>))
                                          // mir::Constant
                                          // + span: $DIR/issue-38669.rs:6:10: 11:6
                                          // + literal: Const { ty: (), val: Value(Scalar(<ZST>)) }
-        goto -> bb2;                     // bb5[5]: scope 1 at $DIR/issue-38669.rs:6:5: 11:6
+        goto -> bb2;                     // scope 1 at $DIR/issue-38669.rs:6:5: 11:6
     }
 
     bb6: {
-        _0 = const ();                   // bb6[0]: scope 1 at $DIR/issue-38669.rs:8:13: 8:18
+        _0 = const ();                   // scope 1 at $DIR/issue-38669.rs:8:13: 8:18
                                          // ty::Const
                                          // + ty: ()
                                          // + val: Value(Scalar(<ZST>))
                                          // mir::Constant
                                          // + span: $DIR/issue-38669.rs:8:13: 8:18
                                          // + literal: Const { ty: (), val: Value(Scalar(<ZST>)) }
-        StorageDead(_4);                 // bb6[1]: scope 1 at $DIR/issue-38669.rs:9:9: 9:10
-        StorageDead(_3);                 // bb6[2]: scope 1 at $DIR/issue-38669.rs:9:9: 9:10
-        StorageDead(_1);                 // bb6[3]: scope 0 at $DIR/issue-38669.rs:12:1: 12:2
-        return;                          // bb6[4]: scope 0 at $DIR/issue-38669.rs:12:2: 12:2
+        StorageDead(_4);                 // scope 1 at $DIR/issue-38669.rs:9:9: 9:10
+        StorageDead(_3);                 // scope 1 at $DIR/issue-38669.rs:9:9: 9:10
+        StorageDead(_1);                 // scope 0 at $DIR/issue-38669.rs:12:1: 12:2
+        return;                          // scope 0 at $DIR/issue-38669.rs:12:2: 12:2
     }
 }
diff --git a/src/test/mir-opt/issue-41110/rustc.main.ElaborateDrops.after.mir b/src/test/mir-opt/issue-41110/rustc.main.ElaborateDrops.after.mir
index 55849b27732..77763f2d3a0 100644
--- a/src/test/mir-opt/issue-41110/rustc.main.ElaborateDrops.after.mir
+++ b/src/test/mir-opt/issue-41110/rustc.main.ElaborateDrops.after.mir
@@ -12,27 +12,27 @@ fn main() -> () {
     }
 
     bb0: {
-        _5 = const false;                // bb0[0]: scope 0 at $DIR/issue-41110.rs:8:9: 8:10
+        _5 = const false;                // scope 0 at $DIR/issue-41110.rs:8:9: 8:10
                                          // ty::Const
                                          // + ty: bool
                                          // + val: Value(Scalar(0x00))
                                          // mir::Constant
                                          // + span: $DIR/issue-41110.rs:8:9: 8:10
                                          // + literal: Const { ty: bool, val: Value(Scalar(0x00)) }
-        StorageLive(_1);                 // bb0[1]: scope 0 at $DIR/issue-41110.rs:8:9: 8:10
-        StorageLive(_2);                 // bb0[2]: scope 0 at $DIR/issue-41110.rs:8:13: 8:14
-        _5 = const true;                 // bb0[3]: scope 0 at $DIR/issue-41110.rs:8:13: 8:14
+        StorageLive(_1);                 // scope 0 at $DIR/issue-41110.rs:8:9: 8:10
+        StorageLive(_2);                 // scope 0 at $DIR/issue-41110.rs:8:13: 8:14
+        _5 = const true;                 // scope 0 at $DIR/issue-41110.rs:8:13: 8:14
                                          // ty::Const
                                          // + ty: bool
                                          // + val: Value(Scalar(0x01))
                                          // mir::Constant
                                          // + span: $DIR/issue-41110.rs:8:13: 8:14
                                          // + literal: Const { ty: bool, val: Value(Scalar(0x01)) }
-        _2 = S;                          // bb0[4]: scope 0 at $DIR/issue-41110.rs:8:13: 8:14
-        StorageLive(_3);                 // bb0[5]: scope 0 at $DIR/issue-41110.rs:8:21: 8:27
-        StorageLive(_4);                 // bb0[6]: scope 0 at $DIR/issue-41110.rs:8:21: 8:22
-        _4 = S;                          // bb0[7]: scope 0 at $DIR/issue-41110.rs:8:21: 8:22
-        _3 = const S::id(move _4) -> [return: bb2, unwind: bb4]; // bb0[8]: scope 0 at $DIR/issue-41110.rs:8:21: 8:27
+        _2 = S;                          // scope 0 at $DIR/issue-41110.rs:8:13: 8:14
+        StorageLive(_3);                 // scope 0 at $DIR/issue-41110.rs:8:21: 8:27
+        StorageLive(_4);                 // scope 0 at $DIR/issue-41110.rs:8:21: 8:22
+        _4 = S;                          // scope 0 at $DIR/issue-41110.rs:8:21: 8:22
+        _3 = const S::id(move _4) -> [return: bb2, unwind: bb4]; // scope 0 at $DIR/issue-41110.rs:8:21: 8:27
                                          // ty::Const
                                          // + ty: fn(S) -> S {S::id}
                                          // + val: Value(Scalar(<ZST>))
@@ -42,19 +42,19 @@ fn main() -> () {
     }
 
     bb1 (cleanup): {
-        resume;                          // bb1[0]: scope 0 at $DIR/issue-41110.rs:7:1: 9:2
+        resume;                          // scope 0 at $DIR/issue-41110.rs:7:1: 9:2
     }
 
     bb2: {
-        StorageDead(_4);                 // bb2[0]: scope 0 at $DIR/issue-41110.rs:8:26: 8:27
-        _5 = const false;                // bb2[1]: scope 0 at $DIR/issue-41110.rs:8:13: 8:28
+        StorageDead(_4);                 // scope 0 at $DIR/issue-41110.rs:8:26: 8:27
+        _5 = const false;                // scope 0 at $DIR/issue-41110.rs:8:13: 8:28
                                          // ty::Const
                                          // + ty: bool
                                          // + val: Value(Scalar(0x00))
                                          // mir::Constant
                                          // + span: $DIR/issue-41110.rs:8:13: 8:28
                                          // + literal: Const { ty: bool, val: Value(Scalar(0x00)) }
-        _1 = const S::other(move _2, move _3) -> [return: bb6, unwind: bb5]; // bb2[2]: scope 0 at $DIR/issue-41110.rs:8:13: 8:28
+        _1 = const S::other(move _2, move _3) -> [return: bb6, unwind: bb5]; // scope 0 at $DIR/issue-41110.rs:8:13: 8:28
                                          // ty::Const
                                          // + ty: fn(S, S) {S::other}
                                          // + val: Value(Scalar(<ZST>))
@@ -64,54 +64,54 @@ fn main() -> () {
     }
 
     bb3 (cleanup): {
-        goto -> bb9;                     // bb3[0]: scope 0 at $DIR/issue-41110.rs:8:27: 8:28
+        goto -> bb9;                     // scope 0 at $DIR/issue-41110.rs:8:27: 8:28
     }
 
     bb4 (cleanup): {
-        goto -> bb3;                     // bb4[0]: scope 0 at $DIR/issue-41110.rs:8:26: 8:27
+        goto -> bb3;                     // scope 0 at $DIR/issue-41110.rs:8:26: 8:27
     }
 
     bb5 (cleanup): {
-        goto -> bb3;                     // bb5[0]: scope 0 at $DIR/issue-41110.rs:8:27: 8:28
+        goto -> bb3;                     // scope 0 at $DIR/issue-41110.rs:8:27: 8:28
     }
 
     bb6: {
-        StorageDead(_3);                 // bb6[0]: scope 0 at $DIR/issue-41110.rs:8:27: 8:28
-        _5 = const false;                // bb6[1]: scope 0 at $DIR/issue-41110.rs:8:27: 8:28
+        StorageDead(_3);                 // scope 0 at $DIR/issue-41110.rs:8:27: 8:28
+        _5 = const false;                // scope 0 at $DIR/issue-41110.rs:8:27: 8:28
                                          // ty::Const
                                          // + ty: bool
                                          // + val: Value(Scalar(0x00))
                                          // mir::Constant
                                          // + span: $DIR/issue-41110.rs:8:27: 8:28
                                          // + literal: Const { ty: bool, val: Value(Scalar(0x00)) }
-        StorageDead(_2);                 // bb6[2]: scope 0 at $DIR/issue-41110.rs:8:27: 8:28
-        _0 = const ();                   // bb6[3]: scope 0 at $DIR/issue-41110.rs:7:11: 9:2
+        StorageDead(_2);                 // scope 0 at $DIR/issue-41110.rs:8:27: 8:28
+        _0 = const ();                   // scope 0 at $DIR/issue-41110.rs:7:11: 9:2
                                          // ty::Const
                                          // + ty: ()
                                          // + val: Value(Scalar(<ZST>))
                                          // mir::Constant
                                          // + span: $DIR/issue-41110.rs:7:11: 9:2
                                          // + literal: Const { ty: (), val: Value(Scalar(<ZST>)) }
-        StorageDead(_1);                 // bb6[4]: scope 0 at $DIR/issue-41110.rs:9:1: 9:2
-        return;                          // bb6[5]: scope 0 at $DIR/issue-41110.rs:9:2: 9:2
+        StorageDead(_1);                 // scope 0 at $DIR/issue-41110.rs:9:1: 9:2
+        return;                          // scope 0 at $DIR/issue-41110.rs:9:2: 9:2
     }
 
     bb7 (cleanup): {
-        drop(_2) -> bb1;                 // bb7[0]: scope 0 at $DIR/issue-41110.rs:8:27: 8:28
+        drop(_2) -> bb1;                 // scope 0 at $DIR/issue-41110.rs:8:27: 8:28
     }
 
     bb8 (cleanup): {
-        _5 = const false;                // bb8[0]: scope 0 at $DIR/issue-41110.rs:8:27: 8:28
+        _5 = const false;                // scope 0 at $DIR/issue-41110.rs:8:27: 8:28
                                          // ty::Const
                                          // + ty: bool
                                          // + val: Value(Scalar(0x00))
                                          // mir::Constant
                                          // + span: $DIR/issue-41110.rs:8:27: 8:28
                                          // + literal: Const { ty: bool, val: Value(Scalar(0x00)) }
-        goto -> bb7;                     // bb8[1]: scope 0 at $DIR/issue-41110.rs:8:27: 8:28
+        goto -> bb7;                     // scope 0 at $DIR/issue-41110.rs:8:27: 8:28
     }
 
     bb9 (cleanup): {
-        switchInt(_5) -> [false: bb1, otherwise: bb8]; // bb9[0]: scope 0 at $DIR/issue-41110.rs:8:27: 8:28
+        switchInt(_5) -> [false: bb1, otherwise: bb8]; // scope 0 at $DIR/issue-41110.rs:8:27: 8:28
     }
 }
diff --git a/src/test/mir-opt/issue-41110/rustc.test.ElaborateDrops.after.mir b/src/test/mir-opt/issue-41110/rustc.test.ElaborateDrops.after.mir
index cc1a49dd245..a99846bd15d 100644
--- a/src/test/mir-opt/issue-41110/rustc.test.ElaborateDrops.after.mir
+++ b/src/test/mir-opt/issue-41110/rustc.test.ElaborateDrops.after.mir
@@ -16,28 +16,28 @@ fn test() -> () {
     }
 
     bb0: {
-        _6 = const false;                // bb0[0]: scope 0 at $DIR/issue-41110.rs:15:9: 15:10
+        _6 = const false;                // scope 0 at $DIR/issue-41110.rs:15:9: 15:10
                                          // ty::Const
                                          // + ty: bool
                                          // + val: Value(Scalar(0x00))
                                          // mir::Constant
                                          // + span: $DIR/issue-41110.rs:15:9: 15:10
                                          // + literal: Const { ty: bool, val: Value(Scalar(0x00)) }
-        StorageLive(_1);                 // bb0[1]: scope 0 at $DIR/issue-41110.rs:15:9: 15:10
-        _6 = const true;                 // bb0[2]: scope 0 at $DIR/issue-41110.rs:15:13: 15:14
+        StorageLive(_1);                 // scope 0 at $DIR/issue-41110.rs:15:9: 15:10
+        _6 = const true;                 // scope 0 at $DIR/issue-41110.rs:15:13: 15:14
                                          // ty::Const
                                          // + ty: bool
                                          // + val: Value(Scalar(0x01))
                                          // mir::Constant
                                          // + span: $DIR/issue-41110.rs:15:13: 15:14
                                          // + literal: Const { ty: bool, val: Value(Scalar(0x01)) }
-        _1 = S;                          // bb0[3]: scope 0 at $DIR/issue-41110.rs:15:13: 15:14
-        StorageLive(_2);                 // bb0[4]: scope 1 at $DIR/issue-41110.rs:16:9: 16:14
-        _2 = S;                          // bb0[5]: scope 1 at $DIR/issue-41110.rs:16:17: 16:18
-        StorageLive(_3);                 // bb0[6]: scope 2 at $DIR/issue-41110.rs:17:5: 17:12
-        StorageLive(_4);                 // bb0[7]: scope 2 at $DIR/issue-41110.rs:17:10: 17:11
-        _4 = move _2;                    // bb0[8]: scope 2 at $DIR/issue-41110.rs:17:10: 17:11
-        _3 = const std::mem::drop::<S>(move _4) -> [return: bb2, unwind: bb5]; // bb0[9]: scope 2 at $DIR/issue-41110.rs:17:5: 17:12
+        _1 = S;                          // scope 0 at $DIR/issue-41110.rs:15:13: 15:14
+        StorageLive(_2);                 // scope 1 at $DIR/issue-41110.rs:16:9: 16:14
+        _2 = S;                          // scope 1 at $DIR/issue-41110.rs:16:17: 16:18
+        StorageLive(_3);                 // scope 2 at $DIR/issue-41110.rs:17:5: 17:12
+        StorageLive(_4);                 // scope 2 at $DIR/issue-41110.rs:17:10: 17:11
+        _4 = move _2;                    // scope 2 at $DIR/issue-41110.rs:17:10: 17:11
+        _3 = const std::mem::drop::<S>(move _4) -> [return: bb2, unwind: bb5]; // scope 2 at $DIR/issue-41110.rs:17:5: 17:12
                                          // ty::Const
                                          // + ty: fn(S) {std::mem::drop::<S>}
                                          // + val: Value(Scalar(<ZST>))
@@ -47,99 +47,99 @@ fn test() -> () {
     }
 
     bb1 (cleanup): {
-        resume;                          // bb1[0]: scope 0 at $DIR/issue-41110.rs:14:1: 19:2
+        resume;                          // scope 0 at $DIR/issue-41110.rs:14:1: 19:2
     }
 
     bb2: {
-        StorageDead(_4);                 // bb2[0]: scope 2 at $DIR/issue-41110.rs:17:11: 17:12
-        StorageDead(_3);                 // bb2[1]: scope 2 at $DIR/issue-41110.rs:17:12: 17:13
-        StorageLive(_5);                 // bb2[2]: scope 2 at $DIR/issue-41110.rs:18:9: 18:10
-        _6 = const false;                // bb2[3]: scope 2 at $DIR/issue-41110.rs:18:9: 18:10
+        StorageDead(_4);                 // scope 2 at $DIR/issue-41110.rs:17:11: 17:12
+        StorageDead(_3);                 // scope 2 at $DIR/issue-41110.rs:17:12: 17:13
+        StorageLive(_5);                 // scope 2 at $DIR/issue-41110.rs:18:9: 18:10
+        _6 = const false;                // scope 2 at $DIR/issue-41110.rs:18:9: 18:10
                                          // ty::Const
                                          // + ty: bool
                                          // + val: Value(Scalar(0x00))
                                          // mir::Constant
                                          // + span: $DIR/issue-41110.rs:18:9: 18:10
                                          // + literal: Const { ty: bool, val: Value(Scalar(0x00)) }
-        _5 = move _1;                    // bb2[4]: scope 2 at $DIR/issue-41110.rs:18:9: 18:10
-        goto -> bb12;                    // bb2[5]: scope 2 at $DIR/issue-41110.rs:18:5: 18:6
+        _5 = move _1;                    // scope 2 at $DIR/issue-41110.rs:18:9: 18:10
+        goto -> bb12;                    // scope 2 at $DIR/issue-41110.rs:18:5: 18:6
     }
 
     bb3 (cleanup): {
-        goto -> bb15;                    // bb3[0]: scope 0 at $DIR/issue-41110.rs:19:1: 19:2
+        goto -> bb15;                    // scope 0 at $DIR/issue-41110.rs:19:1: 19:2
     }
 
     bb4 (cleanup): {
-        goto -> bb3;                     // bb4[0]: scope 1 at $DIR/issue-41110.rs:19:1: 19:2
+        goto -> bb3;                     // scope 1 at $DIR/issue-41110.rs:19:1: 19:2
     }
 
     bb5 (cleanup): {
-        goto -> bb4;                     // bb5[0]: scope 2 at $DIR/issue-41110.rs:17:11: 17:12
+        goto -> bb4;                     // scope 2 at $DIR/issue-41110.rs:17:11: 17:12
     }
 
     bb6: {
-        goto -> bb8;                     // bb6[0]: scope 2 at $DIR/issue-41110.rs:18:9: 18:10
+        goto -> bb8;                     // scope 2 at $DIR/issue-41110.rs:18:9: 18:10
     }
 
     bb7 (cleanup): {
-        goto -> bb4;                     // bb7[0]: scope 2 at $DIR/issue-41110.rs:18:9: 18:10
+        goto -> bb4;                     // scope 2 at $DIR/issue-41110.rs:18:9: 18:10
     }
 
     bb8: {
-        StorageDead(_5);                 // bb8[0]: scope 2 at $DIR/issue-41110.rs:18:9: 18:10
-        _0 = const ();                   // bb8[1]: scope 0 at $DIR/issue-41110.rs:14:15: 19:2
+        StorageDead(_5);                 // scope 2 at $DIR/issue-41110.rs:18:9: 18:10
+        _0 = const ();                   // scope 0 at $DIR/issue-41110.rs:14:15: 19:2
                                          // ty::Const
                                          // + ty: ()
                                          // + val: Value(Scalar(<ZST>))
                                          // mir::Constant
                                          // + span: $DIR/issue-41110.rs:14:15: 19:2
                                          // + literal: Const { ty: (), val: Value(Scalar(<ZST>)) }
-        drop(_2) -> [return: bb9, unwind: bb3]; // bb8[2]: scope 1 at $DIR/issue-41110.rs:19:1: 19:2
+        drop(_2) -> [return: bb9, unwind: bb3]; // scope 1 at $DIR/issue-41110.rs:19:1: 19:2
     }
 
     bb9: {
-        StorageDead(_2);                 // bb9[0]: scope 1 at $DIR/issue-41110.rs:19:1: 19:2
-        goto -> bb10;                    // bb9[1]: scope 0 at $DIR/issue-41110.rs:19:1: 19:2
+        StorageDead(_2);                 // scope 1 at $DIR/issue-41110.rs:19:1: 19:2
+        goto -> bb10;                    // scope 0 at $DIR/issue-41110.rs:19:1: 19:2
     }
 
     bb10: {
-        _6 = const false;                // bb10[0]: scope 0 at $DIR/issue-41110.rs:19:1: 19:2
+        _6 = const false;                // scope 0 at $DIR/issue-41110.rs:19:1: 19:2
                                          // ty::Const
                                          // + ty: bool
                                          // + val: Value(Scalar(0x00))
                                          // mir::Constant
                                          // + span: $DIR/issue-41110.rs:19:1: 19:2
                                          // + literal: Const { ty: bool, val: Value(Scalar(0x00)) }
-        StorageDead(_1);                 // bb10[1]: scope 0 at $DIR/issue-41110.rs:19:1: 19:2
-        return;                          // bb10[2]: scope 0 at $DIR/issue-41110.rs:19:2: 19:2
+        StorageDead(_1);                 // scope 0 at $DIR/issue-41110.rs:19:1: 19:2
+        return;                          // scope 0 at $DIR/issue-41110.rs:19:2: 19:2
     }
 
     bb11 (cleanup): {
-        _2 = move _5;                    // bb11[0]: scope 2 at $DIR/issue-41110.rs:18:5: 18:6
-        goto -> bb7;                     // bb11[1]: scope 2 at $DIR/issue-41110.rs:18:5: 18:6
+        _2 = move _5;                    // scope 2 at $DIR/issue-41110.rs:18:5: 18:6
+        goto -> bb7;                     // scope 2 at $DIR/issue-41110.rs:18:5: 18:6
     }
 
     bb12: {
-        _2 = move _5;                    // bb12[0]: scope 2 at $DIR/issue-41110.rs:18:5: 18:6
-        goto -> bb6;                     // bb12[1]: scope 2 at $DIR/issue-41110.rs:18:5: 18:6
+        _2 = move _5;                    // scope 2 at $DIR/issue-41110.rs:18:5: 18:6
+        goto -> bb6;                     // scope 2 at $DIR/issue-41110.rs:18:5: 18:6
     }
 
     bb13 (cleanup): {
-        drop(_1) -> bb1;                 // bb13[0]: scope 0 at $DIR/issue-41110.rs:19:1: 19:2
+        drop(_1) -> bb1;                 // scope 0 at $DIR/issue-41110.rs:19:1: 19:2
     }
 
     bb14 (cleanup): {
-        _6 = const false;                // bb14[0]: scope 0 at $DIR/issue-41110.rs:19:1: 19:2
+        _6 = const false;                // scope 0 at $DIR/issue-41110.rs:19:1: 19:2
                                          // ty::Const
                                          // + ty: bool
                                          // + val: Value(Scalar(0x00))
                                          // mir::Constant
                                          // + span: $DIR/issue-41110.rs:19:1: 19:2
                                          // + literal: Const { ty: bool, val: Value(Scalar(0x00)) }
-        goto -> bb13;                    // bb14[1]: scope 0 at $DIR/issue-41110.rs:19:1: 19:2
+        goto -> bb13;                    // scope 0 at $DIR/issue-41110.rs:19:1: 19:2
     }
 
     bb15 (cleanup): {
-        switchInt(_6) -> [false: bb1, otherwise: bb14]; // bb15[0]: scope 0 at $DIR/issue-41110.rs:19:1: 19:2
+        switchInt(_6) -> [false: bb1, otherwise: bb14]; // scope 0 at $DIR/issue-41110.rs:19:1: 19:2
     }
 }
diff --git a/src/test/mir-opt/issue-41697/32bit/rustc.{{impl}}-{{constant}}.SimplifyCfg-qualify-consts.after.mir b/src/test/mir-opt/issue-41697/32bit/rustc.{{impl}}-{{constant}}.SimplifyCfg-qualify-consts.after.mir
index 072ca4cfe47..d263b2515f1 100644
--- a/src/test/mir-opt/issue-41697/32bit/rustc.{{impl}}-{{constant}}.SimplifyCfg-qualify-consts.after.mir
+++ b/src/test/mir-opt/issue-41697/32bit/rustc.{{impl}}-{{constant}}.SimplifyCfg-qualify-consts.after.mir
@@ -5,7 +5,7 @@
     let mut _1: (usize, bool);           // in scope 0 at $DIR/issue-41697.rs:18:19: 18:22
 
     bb0: {
-        _1 = CheckedAdd(const 1usize, const 1usize); // bb0[0]: scope 0 at $DIR/issue-41697.rs:18:19: 18:22
+        _1 = CheckedAdd(const 1usize, const 1usize); // scope 0 at $DIR/issue-41697.rs:18:19: 18:22
                                          // ty::Const
                                          // + ty: usize
                                          // + val: Value(Scalar(0x00000001))
@@ -18,15 +18,15 @@
                                          // mir::Constant
                                          // + span: $DIR/issue-41697.rs:18:21: 18:22
                                          // + literal: Const { ty: usize, val: Value(Scalar(0x00000001)) }
-        assert(!move (_1.1: bool), "attempt to add with overflow") -> [success: bb2, unwind: bb1]; // bb0[1]: scope 0 at $DIR/issue-41697.rs:18:19: 18:22
+        assert(!move (_1.1: bool), "attempt to add with overflow") -> [success: bb2, unwind: bb1]; // scope 0 at $DIR/issue-41697.rs:18:19: 18:22
     }
 
     bb1 (cleanup): {
-        resume;                          // bb1[0]: scope 0 at $DIR/issue-41697.rs:18:19: 18:22
+        resume;                          // scope 0 at $DIR/issue-41697.rs:18:19: 18:22
     }
 
     bb2: {
-        _0 = move (_1.0: usize);         // bb2[0]: scope 0 at $DIR/issue-41697.rs:18:19: 18:22
-        return;                          // bb2[1]: scope 0 at $DIR/issue-41697.rs:18:19: 18:22
+        _0 = move (_1.0: usize);         // scope 0 at $DIR/issue-41697.rs:18:19: 18:22
+        return;                          // scope 0 at $DIR/issue-41697.rs:18:19: 18:22
     }
 }
diff --git a/src/test/mir-opt/issue-41697/64bit/rustc.{{impl}}-{{constant}}.SimplifyCfg-qualify-consts.after.mir b/src/test/mir-opt/issue-41697/64bit/rustc.{{impl}}-{{constant}}.SimplifyCfg-qualify-consts.after.mir
index 5a9d1570b80..6c00f49fb75 100644
--- a/src/test/mir-opt/issue-41697/64bit/rustc.{{impl}}-{{constant}}.SimplifyCfg-qualify-consts.after.mir
+++ b/src/test/mir-opt/issue-41697/64bit/rustc.{{impl}}-{{constant}}.SimplifyCfg-qualify-consts.after.mir
@@ -5,7 +5,7 @@
     let mut _1: (usize, bool);           // in scope 0 at $DIR/issue-41697.rs:18:19: 18:22
 
     bb0: {
-        _1 = CheckedAdd(const 1usize, const 1usize); // bb0[0]: scope 0 at $DIR/issue-41697.rs:18:19: 18:22
+        _1 = CheckedAdd(const 1usize, const 1usize); // scope 0 at $DIR/issue-41697.rs:18:19: 18:22
                                          // ty::Const
                                          // + ty: usize
                                          // + val: Value(Scalar(0x0000000000000001))
@@ -18,15 +18,15 @@
                                          // mir::Constant
                                          // + span: $DIR/issue-41697.rs:18:21: 18:22
                                          // + literal: Const { ty: usize, val: Value(Scalar(0x0000000000000001)) }
-        assert(!move (_1.1: bool), "attempt to add with overflow") -> [success: bb2, unwind: bb1]; // bb0[1]: scope 0 at $DIR/issue-41697.rs:18:19: 18:22
+        assert(!move (_1.1: bool), "attempt to add with overflow") -> [success: bb2, unwind: bb1]; // scope 0 at $DIR/issue-41697.rs:18:19: 18:22
     }
 
     bb1 (cleanup): {
-        resume;                          // bb1[0]: scope 0 at $DIR/issue-41697.rs:18:19: 18:22
+        resume;                          // scope 0 at $DIR/issue-41697.rs:18:19: 18:22
     }
 
     bb2: {
-        _0 = move (_1.0: usize);         // bb2[0]: scope 0 at $DIR/issue-41697.rs:18:19: 18:22
-        return;                          // bb2[1]: scope 0 at $DIR/issue-41697.rs:18:19: 18:22
+        _0 = move (_1.0: usize);         // scope 0 at $DIR/issue-41697.rs:18:19: 18:22
+        return;                          // scope 0 at $DIR/issue-41697.rs:18:19: 18:22
     }
 }
diff --git a/src/test/mir-opt/issue-41888/rustc.main.ElaborateDrops.after.mir b/src/test/mir-opt/issue-41888/rustc.main.ElaborateDrops.after.mir
index fe376f2a048..ce940273c3e 100644
--- a/src/test/mir-opt/issue-41888/rustc.main.ElaborateDrops.after.mir
+++ b/src/test/mir-opt/issue-41888/rustc.main.ElaborateDrops.after.mir
@@ -21,30 +21,30 @@ fn main() -> () {
     }
 
     bb0: {
-        _9 = const false;                // bb0[0]: scope 0 at $DIR/issue-41888.rs:7:9: 7:10
+        _9 = const false;                // scope 0 at $DIR/issue-41888.rs:7:9: 7:10
                                          // ty::Const
                                          // + ty: bool
                                          // + val: Value(Scalar(0x00))
                                          // mir::Constant
                                          // + span: $DIR/issue-41888.rs:7:9: 7:10
                                          // + literal: Const { ty: bool, val: Value(Scalar(0x00)) }
-        _7 = const false;                // bb0[1]: scope 0 at $DIR/issue-41888.rs:7:9: 7:10
+        _7 = const false;                // scope 0 at $DIR/issue-41888.rs:7:9: 7:10
                                          // ty::Const
                                          // + ty: bool
                                          // + val: Value(Scalar(0x00))
                                          // mir::Constant
                                          // + span: $DIR/issue-41888.rs:7:9: 7:10
                                          // + literal: Const { ty: bool, val: Value(Scalar(0x00)) }
-        _8 = const false;                // bb0[2]: scope 0 at $DIR/issue-41888.rs:7:9: 7:10
+        _8 = const false;                // scope 0 at $DIR/issue-41888.rs:7:9: 7:10
                                          // ty::Const
                                          // + ty: bool
                                          // + val: Value(Scalar(0x00))
                                          // mir::Constant
                                          // + span: $DIR/issue-41888.rs:7:9: 7:10
                                          // + literal: Const { ty: bool, val: Value(Scalar(0x00)) }
-        StorageLive(_1);                 // bb0[3]: scope 0 at $DIR/issue-41888.rs:7:9: 7:10
-        StorageLive(_2);                 // bb0[4]: scope 1 at $DIR/issue-41888.rs:8:8: 8:14
-        _2 = const cond() -> [return: bb2, unwind: bb3]; // bb0[5]: scope 1 at $DIR/issue-41888.rs:8:8: 8:14
+        StorageLive(_1);                 // scope 0 at $DIR/issue-41888.rs:7:9: 7:10
+        StorageLive(_2);                 // scope 1 at $DIR/issue-41888.rs:8:8: 8:14
+        _2 = const cond() -> [return: bb2, unwind: bb3]; // scope 1 at $DIR/issue-41888.rs:8:8: 8:14
                                          // ty::Const
                                          // + ty: fn() -> bool {cond}
                                          // + val: Value(Scalar(<ZST>))
@@ -54,215 +54,215 @@ fn main() -> () {
     }
 
     bb1 (cleanup): {
-        resume;                          // bb1[0]: scope 0 at $DIR/issue-41888.rs:6:1: 15:2
+        resume;                          // scope 0 at $DIR/issue-41888.rs:6:1: 15:2
     }
 
     bb2: {
-        switchInt(_2) -> [false: bb4, otherwise: bb5]; // bb2[0]: scope 1 at $DIR/issue-41888.rs:8:5: 14:6
+        switchInt(_2) -> [false: bb4, otherwise: bb5]; // scope 1 at $DIR/issue-41888.rs:8:5: 14:6
     }
 
     bb3 (cleanup): {
-        goto -> bb1;                     // bb3[0]: scope 0 at $DIR/issue-41888.rs:15:1: 15:2
+        goto -> bb1;                     // scope 0 at $DIR/issue-41888.rs:15:1: 15:2
     }
 
     bb4: {
-        _0 = const ();                   // bb4[0]: scope 1 at $DIR/issue-41888.rs:8:5: 14:6
+        _0 = const ();                   // scope 1 at $DIR/issue-41888.rs:8:5: 14:6
                                          // ty::Const
                                          // + ty: ()
                                          // + val: Value(Scalar(<ZST>))
                                          // mir::Constant
                                          // + span: $DIR/issue-41888.rs:8:5: 14:6
                                          // + literal: Const { ty: (), val: Value(Scalar(<ZST>)) }
-        goto -> bb11;                    // bb4[1]: scope 1 at $DIR/issue-41888.rs:8:5: 14:6
+        goto -> bb11;                    // scope 1 at $DIR/issue-41888.rs:8:5: 14:6
     }
 
     bb5: {
-        StorageLive(_3);                 // bb5[0]: scope 1 at $DIR/issue-41888.rs:9:13: 9:20
-        StorageLive(_4);                 // bb5[1]: scope 1 at $DIR/issue-41888.rs:9:18: 9:19
-        _4 = K;                          // bb5[2]: scope 1 at $DIR/issue-41888.rs:9:18: 9:19
-        _3 = E::F(move _4);              // bb5[3]: scope 1 at $DIR/issue-41888.rs:9:13: 9:20
-        StorageDead(_4);                 // bb5[4]: scope 1 at $DIR/issue-41888.rs:9:19: 9:20
-        goto -> bb14;                    // bb5[5]: scope 1 at $DIR/issue-41888.rs:9:9: 9:10
+        StorageLive(_3);                 // scope 1 at $DIR/issue-41888.rs:9:13: 9:20
+        StorageLive(_4);                 // scope 1 at $DIR/issue-41888.rs:9:18: 9:19
+        _4 = K;                          // scope 1 at $DIR/issue-41888.rs:9:18: 9:19
+        _3 = E::F(move _4);              // scope 1 at $DIR/issue-41888.rs:9:13: 9:20
+        StorageDead(_4);                 // scope 1 at $DIR/issue-41888.rs:9:19: 9:20
+        goto -> bb14;                    // scope 1 at $DIR/issue-41888.rs:9:9: 9:10
     }
 
     bb6: {
-        goto -> bb8;                     // bb6[0]: scope 1 at $DIR/issue-41888.rs:9:19: 9:20
+        goto -> bb8;                     // scope 1 at $DIR/issue-41888.rs:9:19: 9:20
     }
 
     bb7 (cleanup): {
-        goto -> bb3;                     // bb7[0]: scope 1 at $DIR/issue-41888.rs:9:19: 9:20
+        goto -> bb3;                     // scope 1 at $DIR/issue-41888.rs:9:19: 9:20
     }
 
     bb8: {
-        StorageDead(_3);                 // bb8[0]: scope 1 at $DIR/issue-41888.rs:9:19: 9:20
-        _5 = discriminant(_1);           // bb8[1]: scope 1 at $DIR/issue-41888.rs:10:16: 10:24
-        switchInt(move _5) -> [0isize: bb10, otherwise: bb9]; // bb8[2]: scope 1 at $DIR/issue-41888.rs:10:16: 10:24
+        StorageDead(_3);                 // scope 1 at $DIR/issue-41888.rs:9:19: 9:20
+        _5 = discriminant(_1);           // scope 1 at $DIR/issue-41888.rs:10:16: 10:24
+        switchInt(move _5) -> [0isize: bb10, otherwise: bb9]; // scope 1 at $DIR/issue-41888.rs:10:16: 10:24
     }
 
     bb9: {
-        _0 = const ();                   // bb9[0]: scope 1 at $DIR/issue-41888.rs:10:9: 13:10
+        _0 = const ();                   // scope 1 at $DIR/issue-41888.rs:10:9: 13:10
                                          // ty::Const
                                          // + ty: ()
                                          // + val: Value(Scalar(<ZST>))
                                          // mir::Constant
                                          // + span: $DIR/issue-41888.rs:10:9: 13:10
                                          // + literal: Const { ty: (), val: Value(Scalar(<ZST>)) }
-        goto -> bb11;                    // bb9[1]: scope 1 at $DIR/issue-41888.rs:10:9: 13:10
+        goto -> bb11;                    // scope 1 at $DIR/issue-41888.rs:10:9: 13:10
     }
 
     bb10: {
-        StorageLive(_6);                 // bb10[0]: scope 1 at $DIR/issue-41888.rs:10:21: 10:23
-        _9 = const false;                // bb10[1]: scope 1 at $DIR/issue-41888.rs:10:21: 10:23
+        StorageLive(_6);                 // scope 1 at $DIR/issue-41888.rs:10:21: 10:23
+        _9 = const false;                // scope 1 at $DIR/issue-41888.rs:10:21: 10:23
                                          // ty::Const
                                          // + ty: bool
                                          // + val: Value(Scalar(0x00))
                                          // mir::Constant
                                          // + span: $DIR/issue-41888.rs:10:21: 10:23
                                          // + literal: Const { ty: bool, val: Value(Scalar(0x00)) }
-        _6 = move ((_1 as F).0: K);      // bb10[2]: scope 1 at $DIR/issue-41888.rs:10:21: 10:23
-        _0 = const ();                   // bb10[3]: scope 2 at $DIR/issue-41888.rs:10:29: 13:10
+        _6 = move ((_1 as F).0: K);      // scope 1 at $DIR/issue-41888.rs:10:21: 10:23
+        _0 = const ();                   // scope 2 at $DIR/issue-41888.rs:10:29: 13:10
                                          // ty::Const
                                          // + ty: ()
                                          // + val: Value(Scalar(<ZST>))
                                          // mir::Constant
                                          // + span: $DIR/issue-41888.rs:10:29: 13:10
                                          // + literal: Const { ty: (), val: Value(Scalar(<ZST>)) }
-        StorageDead(_6);                 // bb10[4]: scope 1 at $DIR/issue-41888.rs:13:9: 13:10
-        goto -> bb11;                    // bb10[5]: scope 1 at $DIR/issue-41888.rs:10:9: 13:10
+        StorageDead(_6);                 // scope 1 at $DIR/issue-41888.rs:13:9: 13:10
+        goto -> bb11;                    // scope 1 at $DIR/issue-41888.rs:10:9: 13:10
     }
 
     bb11: {
-        goto -> bb21;                    // bb11[0]: scope 0 at $DIR/issue-41888.rs:15:1: 15:2
+        goto -> bb21;                    // scope 0 at $DIR/issue-41888.rs:15:1: 15:2
     }
 
     bb12: {
-        _7 = const false;                // bb12[0]: scope 0 at $DIR/issue-41888.rs:15:1: 15:2
+        _7 = const false;                // scope 0 at $DIR/issue-41888.rs:15:1: 15:2
                                          // ty::Const
                                          // + ty: bool
                                          // + val: Value(Scalar(0x00))
                                          // mir::Constant
                                          // + span: $DIR/issue-41888.rs:15:1: 15:2
                                          // + literal: Const { ty: bool, val: Value(Scalar(0x00)) }
-        _8 = const false;                // bb12[1]: scope 0 at $DIR/issue-41888.rs:15:1: 15:2
+        _8 = const false;                // scope 0 at $DIR/issue-41888.rs:15:1: 15:2
                                          // ty::Const
                                          // + ty: bool
                                          // + val: Value(Scalar(0x00))
                                          // mir::Constant
                                          // + span: $DIR/issue-41888.rs:15:1: 15:2
                                          // + literal: Const { ty: bool, val: Value(Scalar(0x00)) }
-        _9 = const false;                // bb12[2]: scope 0 at $DIR/issue-41888.rs:15:1: 15:2
+        _9 = const false;                // scope 0 at $DIR/issue-41888.rs:15:1: 15:2
                                          // ty::Const
                                          // + ty: bool
                                          // + val: Value(Scalar(0x00))
                                          // mir::Constant
                                          // + span: $DIR/issue-41888.rs:15:1: 15:2
                                          // + literal: Const { ty: bool, val: Value(Scalar(0x00)) }
-        StorageDead(_1);                 // bb12[3]: scope 0 at $DIR/issue-41888.rs:15:1: 15:2
-        StorageDead(_2);                 // bb12[4]: scope 0 at $DIR/issue-41888.rs:15:1: 15:2
-        return;                          // bb12[5]: scope 0 at $DIR/issue-41888.rs:15:2: 15:2
+        StorageDead(_1);                 // scope 0 at $DIR/issue-41888.rs:15:1: 15:2
+        StorageDead(_2);                 // scope 0 at $DIR/issue-41888.rs:15:1: 15:2
+        return;                          // scope 0 at $DIR/issue-41888.rs:15:2: 15:2
     }
 
     bb13 (cleanup): {
-        _7 = const true;                 // bb13[0]: scope 1 at $DIR/issue-41888.rs:9:9: 9:10
+        _7 = const true;                 // scope 1 at $DIR/issue-41888.rs:9:9: 9:10
                                          // ty::Const
                                          // + ty: bool
                                          // + val: Value(Scalar(0x01))
                                          // mir::Constant
                                          // + span: $DIR/issue-41888.rs:9:9: 9:10
                                          // + literal: Const { ty: bool, val: Value(Scalar(0x01)) }
-        _8 = const true;                 // bb13[1]: scope 1 at $DIR/issue-41888.rs:9:9: 9:10
+        _8 = const true;                 // scope 1 at $DIR/issue-41888.rs:9:9: 9:10
                                          // ty::Const
                                          // + ty: bool
                                          // + val: Value(Scalar(0x01))
                                          // mir::Constant
                                          // + span: $DIR/issue-41888.rs:9:9: 9:10
                                          // + literal: Const { ty: bool, val: Value(Scalar(0x01)) }
-        _9 = const true;                 // bb13[2]: scope 1 at $DIR/issue-41888.rs:9:9: 9:10
+        _9 = const true;                 // scope 1 at $DIR/issue-41888.rs:9:9: 9:10
                                          // ty::Const
                                          // + ty: bool
                                          // + val: Value(Scalar(0x01))
                                          // mir::Constant
                                          // + span: $DIR/issue-41888.rs:9:9: 9:10
                                          // + literal: Const { ty: bool, val: Value(Scalar(0x01)) }
-        _1 = move _3;                    // bb13[3]: scope 1 at $DIR/issue-41888.rs:9:9: 9:10
-        goto -> bb7;                     // bb13[4]: scope 1 at $DIR/issue-41888.rs:9:9: 9:10
+        _1 = move _3;                    // scope 1 at $DIR/issue-41888.rs:9:9: 9:10
+        goto -> bb7;                     // scope 1 at $DIR/issue-41888.rs:9:9: 9:10
     }
 
     bb14: {
-        _7 = const true;                 // bb14[0]: scope 1 at $DIR/issue-41888.rs:9:9: 9:10
+        _7 = const true;                 // scope 1 at $DIR/issue-41888.rs:9:9: 9:10
                                          // ty::Const
                                          // + ty: bool
                                          // + val: Value(Scalar(0x01))
                                          // mir::Constant
                                          // + span: $DIR/issue-41888.rs:9:9: 9:10
                                          // + literal: Const { ty: bool, val: Value(Scalar(0x01)) }
-        _8 = const true;                 // bb14[1]: scope 1 at $DIR/issue-41888.rs:9:9: 9:10
+        _8 = const true;                 // scope 1 at $DIR/issue-41888.rs:9:9: 9:10
                                          // ty::Const
                                          // + ty: bool
                                          // + val: Value(Scalar(0x01))
                                          // mir::Constant
                                          // + span: $DIR/issue-41888.rs:9:9: 9:10
                                          // + literal: Const { ty: bool, val: Value(Scalar(0x01)) }
-        _9 = const true;                 // bb14[2]: scope 1 at $DIR/issue-41888.rs:9:9: 9:10
+        _9 = const true;                 // scope 1 at $DIR/issue-41888.rs:9:9: 9:10
                                          // ty::Const
                                          // + ty: bool
                                          // + val: Value(Scalar(0x01))
                                          // mir::Constant
                                          // + span: $DIR/issue-41888.rs:9:9: 9:10
                                          // + literal: Const { ty: bool, val: Value(Scalar(0x01)) }
-        _1 = move _3;                    // bb14[3]: scope 1 at $DIR/issue-41888.rs:9:9: 9:10
-        goto -> bb6;                     // bb14[4]: scope 1 at $DIR/issue-41888.rs:9:9: 9:10
+        _1 = move _3;                    // scope 1 at $DIR/issue-41888.rs:9:9: 9:10
+        goto -> bb6;                     // scope 1 at $DIR/issue-41888.rs:9:9: 9:10
     }
 
     bb15: {
-        _7 = const false;                // bb15[0]: scope 0 at $DIR/issue-41888.rs:15:1: 15:2
+        _7 = const false;                // scope 0 at $DIR/issue-41888.rs:15:1: 15:2
                                          // ty::Const
                                          // + ty: bool
                                          // + val: Value(Scalar(0x00))
                                          // mir::Constant
                                          // + span: $DIR/issue-41888.rs:15:1: 15:2
                                          // + literal: Const { ty: bool, val: Value(Scalar(0x00)) }
-        goto -> bb12;                    // bb15[1]: scope 0 at $DIR/issue-41888.rs:15:1: 15:2
+        goto -> bb12;                    // scope 0 at $DIR/issue-41888.rs:15:1: 15:2
     }
 
     bb16 (cleanup): {
-        _7 = const false;                // bb16[0]: scope 0 at $DIR/issue-41888.rs:15:1: 15:2
+        _7 = const false;                // scope 0 at $DIR/issue-41888.rs:15:1: 15:2
                                          // ty::Const
                                          // + ty: bool
                                          // + val: Value(Scalar(0x00))
                                          // mir::Constant
                                          // + span: $DIR/issue-41888.rs:15:1: 15:2
                                          // + literal: Const { ty: bool, val: Value(Scalar(0x00)) }
-        goto -> bb1;                     // bb16[1]: scope 0 at $DIR/issue-41888.rs:15:1: 15:2
+        goto -> bb1;                     // scope 0 at $DIR/issue-41888.rs:15:1: 15:2
     }
 
     bb17 (cleanup): {
-        goto -> bb16;                    // bb17[0]: scope 0 at $DIR/issue-41888.rs:15:1: 15:2
+        goto -> bb16;                    // scope 0 at $DIR/issue-41888.rs:15:1: 15:2
     }
 
     bb18: {
-        drop(_1) -> [return: bb15, unwind: bb16]; // bb18[0]: scope 0 at $DIR/issue-41888.rs:15:1: 15:2
+        drop(_1) -> [return: bb15, unwind: bb16]; // scope 0 at $DIR/issue-41888.rs:15:1: 15:2
     }
 
     bb19 (cleanup): {
-        drop(_1) -> bb16;                // bb19[0]: scope 0 at $DIR/issue-41888.rs:15:1: 15:2
+        drop(_1) -> bb16;                // scope 0 at $DIR/issue-41888.rs:15:1: 15:2
     }
 
     bb20: {
-        _10 = discriminant(_1);          // bb20[0]: scope 0 at $DIR/issue-41888.rs:15:1: 15:2
-        switchInt(move _10) -> [0isize: bb15, otherwise: bb18]; // bb20[1]: scope 0 at $DIR/issue-41888.rs:15:1: 15:2
+        _10 = discriminant(_1);          // scope 0 at $DIR/issue-41888.rs:15:1: 15:2
+        switchInt(move _10) -> [0isize: bb15, otherwise: bb18]; // scope 0 at $DIR/issue-41888.rs:15:1: 15:2
     }
 
     bb21: {
-        switchInt(_7) -> [false: bb15, otherwise: bb20]; // bb21[0]: scope 0 at $DIR/issue-41888.rs:15:1: 15:2
+        switchInt(_7) -> [false: bb15, otherwise: bb20]; // scope 0 at $DIR/issue-41888.rs:15:1: 15:2
     }
 
     bb22 (cleanup): {
-        _11 = discriminant(_1);          // bb22[0]: scope 0 at $DIR/issue-41888.rs:15:1: 15:2
-        switchInt(move _11) -> [0isize: bb17, otherwise: bb19]; // bb22[1]: scope 0 at $DIR/issue-41888.rs:15:1: 15:2
+        _11 = discriminant(_1);          // scope 0 at $DIR/issue-41888.rs:15:1: 15:2
+        switchInt(move _11) -> [0isize: bb17, otherwise: bb19]; // scope 0 at $DIR/issue-41888.rs:15:1: 15:2
     }
 
     bb23 (cleanup): {
-        switchInt(_7) -> [false: bb16, otherwise: bb22]; // bb23[0]: scope 0 at $DIR/issue-41888.rs:15:1: 15:2
+        switchInt(_7) -> [false: bb16, otherwise: bb22]; // scope 0 at $DIR/issue-41888.rs:15:1: 15:2
     }
 }
diff --git a/src/test/mir-opt/issue-49232/rustc.main.mir_map.0.mir b/src/test/mir-opt/issue-49232/rustc.main.mir_map.0.mir
index 5440d4488bb..abf33cce133 100644
--- a/src/test/mir-opt/issue-49232/rustc.main.mir_map.0.mir
+++ b/src/test/mir-opt/issue-49232/rustc.main.mir_map.0.mir
@@ -13,93 +13,93 @@ fn main() -> () {
     }
 
     bb0: {
-        goto -> bb1;                     // bb0[0]: scope 0 at $DIR/issue-49232.rs:6:5: 14:6
+        goto -> bb1;                     // scope 0 at $DIR/issue-49232.rs:6:5: 14:6
     }
 
     bb1: {
-        falseUnwind -> [real: bb3, cleanup: bb4]; // bb1[0]: scope 0 at $DIR/issue-49232.rs:6:5: 14:6
+        falseUnwind -> [real: bb3, cleanup: bb4]; // scope 0 at $DIR/issue-49232.rs:6:5: 14:6
     }
 
     bb2: {
-        goto -> bb14;                    // bb2[0]: scope 0 at $DIR/issue-49232.rs:15:2: 15:2
+        goto -> bb14;                    // scope 0 at $DIR/issue-49232.rs:15:2: 15:2
     }
 
     bb3: {
-        StorageLive(_2);                 // bb3[0]: scope 0 at $DIR/issue-49232.rs:7:13: 7:19
-        StorageLive(_3);                 // bb3[1]: scope 0 at $DIR/issue-49232.rs:8:19: 8:23
-        _3 = const true;                 // bb3[2]: scope 0 at $DIR/issue-49232.rs:8:19: 8:23
+        StorageLive(_2);                 // scope 0 at $DIR/issue-49232.rs:7:13: 7:19
+        StorageLive(_3);                 // scope 0 at $DIR/issue-49232.rs:8:19: 8:23
+        _3 = const true;                 // scope 0 at $DIR/issue-49232.rs:8:19: 8:23
                                          // ty::Const
                                          // + ty: bool
                                          // + val: Value(Scalar(0x01))
                                          // mir::Constant
                                          // + span: $DIR/issue-49232.rs:8:19: 8:23
                                          // + literal: Const { ty: bool, val: Value(Scalar(0x01)) }
-        FakeRead(ForMatchedPlace, _3);   // bb3[3]: scope 0 at $DIR/issue-49232.rs:8:19: 8:23
-        switchInt(_3) -> [false: bb5, otherwise: bb6]; // bb3[4]: scope 0 at $DIR/issue-49232.rs:9:17: 9:22
+        FakeRead(ForMatchedPlace, _3);   // scope 0 at $DIR/issue-49232.rs:8:19: 8:23
+        switchInt(_3) -> [false: bb5, otherwise: bb6]; // scope 0 at $DIR/issue-49232.rs:9:17: 9:22
     }
 
     bb4 (cleanup): {
-        resume;                          // bb4[0]: scope 0 at $DIR/issue-49232.rs:5:1: 15:2
+        resume;                          // scope 0 at $DIR/issue-49232.rs:5:1: 15:2
     }
 
     bb5: {
-        falseEdges -> [real: bb7, imaginary: bb6]; // bb5[0]: scope 0 at $DIR/issue-49232.rs:9:17: 9:22
+        falseEdges -> [real: bb7, imaginary: bb6]; // scope 0 at $DIR/issue-49232.rs:9:17: 9:22
     }
 
     bb6: {
-        _0 = const ();                   // bb6[0]: scope 0 at $DIR/issue-49232.rs:10:25: 10:30
+        _0 = const ();                   // scope 0 at $DIR/issue-49232.rs:10:25: 10:30
                                          // ty::Const
                                          // + ty: ()
                                          // + val: Value(Scalar(<ZST>))
                                          // mir::Constant
                                          // + span: $DIR/issue-49232.rs:10:25: 10:30
                                          // + literal: Const { ty: (), val: Value(Scalar(<ZST>)) }
-        goto -> bb8;                     // bb6[1]: scope 0 at $DIR/issue-49232.rs:10:25: 10:30
+        goto -> bb8;                     // scope 0 at $DIR/issue-49232.rs:10:25: 10:30
     }
 
     bb7: {
-        _2 = const 4i32;                 // bb7[0]: scope 0 at $DIR/issue-49232.rs:9:26: 9:27
+        _2 = const 4i32;                 // scope 0 at $DIR/issue-49232.rs:9:26: 9:27
                                          // ty::Const
                                          // + ty: i32
                                          // + val: Value(Scalar(0x00000004))
                                          // mir::Constant
                                          // + span: $DIR/issue-49232.rs:9:26: 9:27
                                          // + literal: Const { ty: i32, val: Value(Scalar(0x00000004)) }
-        goto -> bb12;                    // bb7[1]: scope 0 at $DIR/issue-49232.rs:8:13: 11:14
+        goto -> bb12;                    // scope 0 at $DIR/issue-49232.rs:8:13: 11:14
     }
 
     bb8: {
-        StorageDead(_3);                 // bb8[0]: scope 0 at $DIR/issue-49232.rs:12:10: 12:11
-        goto -> bb9;                     // bb8[1]: scope 0 at $DIR/issue-49232.rs:10:25: 10:30
+        StorageDead(_3);                 // scope 0 at $DIR/issue-49232.rs:12:10: 12:11
+        goto -> bb9;                     // scope 0 at $DIR/issue-49232.rs:10:25: 10:30
     }
 
     bb9: {
-        StorageDead(_2);                 // bb9[0]: scope 0 at $DIR/issue-49232.rs:14:5: 14:6
-        goto -> bb2;                     // bb9[1]: scope 0 at $DIR/issue-49232.rs:10:25: 10:30
+        StorageDead(_2);                 // scope 0 at $DIR/issue-49232.rs:14:5: 14:6
+        goto -> bb2;                     // scope 0 at $DIR/issue-49232.rs:10:25: 10:30
     }
 
     bb10: {
-        _4 = const ();                   // bb10[0]: scope 0 at $DIR/issue-49232.rs:10:25: 10:30
+        _4 = const ();                   // scope 0 at $DIR/issue-49232.rs:10:25: 10:30
                                          // ty::Const
                                          // + ty: ()
                                          // + val: Value(Scalar(<ZST>))
                                          // mir::Constant
                                          // + span: $DIR/issue-49232.rs:10:25: 10:30
                                          // + literal: Const { ty: (), val: Value(Scalar(<ZST>)) }
-        unreachable;                     // bb10[1]: scope 0 at $DIR/issue-49232.rs:10:25: 10:30
+        unreachable;                     // scope 0 at $DIR/issue-49232.rs:10:25: 10:30
     }
 
     bb11: {
-        goto -> bb12;                    // bb11[0]: scope 0 at $DIR/issue-49232.rs:8:13: 11:14
+        goto -> bb12;                    // scope 0 at $DIR/issue-49232.rs:8:13: 11:14
     }
 
     bb12: {
-        FakeRead(ForLet, _2);            // bb12[0]: scope 0 at $DIR/issue-49232.rs:7:13: 7:19
-        StorageDead(_3);                 // bb12[1]: scope 0 at $DIR/issue-49232.rs:12:10: 12:11
-        StorageLive(_5);                 // bb12[2]: scope 1 at $DIR/issue-49232.rs:13:9: 13:22
-        StorageLive(_6);                 // bb12[3]: scope 1 at $DIR/issue-49232.rs:13:14: 13:21
-        _6 = &_2;                        // bb12[4]: scope 1 at $DIR/issue-49232.rs:13:14: 13:21
-        _5 = const std::mem::drop::<&i32>(move _6) -> [return: bb13, unwind: bb4]; // bb12[5]: scope 1 at $DIR/issue-49232.rs:13:9: 13:22
+        FakeRead(ForLet, _2);            // scope 0 at $DIR/issue-49232.rs:7:13: 7:19
+        StorageDead(_3);                 // scope 0 at $DIR/issue-49232.rs:12:10: 12:11
+        StorageLive(_5);                 // scope 1 at $DIR/issue-49232.rs:13:9: 13:22
+        StorageLive(_6);                 // scope 1 at $DIR/issue-49232.rs:13:14: 13:21
+        _6 = &_2;                        // scope 1 at $DIR/issue-49232.rs:13:14: 13:21
+        _5 = const std::mem::drop::<&i32>(move _6) -> [return: bb13, unwind: bb4]; // scope 1 at $DIR/issue-49232.rs:13:9: 13:22
                                          // ty::Const
                                          // + ty: fn(&i32) {std::mem::drop::<&i32>}
                                          // + val: Value(Scalar(<ZST>))
@@ -109,20 +109,20 @@ fn main() -> () {
     }
 
     bb13: {
-        StorageDead(_6);                 // bb13[0]: scope 1 at $DIR/issue-49232.rs:13:21: 13:22
-        StorageDead(_5);                 // bb13[1]: scope 1 at $DIR/issue-49232.rs:13:22: 13:23
-        _1 = const ();                   // bb13[2]: scope 0 at $DIR/issue-49232.rs:6:10: 14:6
+        StorageDead(_6);                 // scope 1 at $DIR/issue-49232.rs:13:21: 13:22
+        StorageDead(_5);                 // scope 1 at $DIR/issue-49232.rs:13:22: 13:23
+        _1 = const ();                   // scope 0 at $DIR/issue-49232.rs:6:10: 14:6
                                          // ty::Const
                                          // + ty: ()
                                          // + val: Value(Scalar(<ZST>))
                                          // mir::Constant
                                          // + span: $DIR/issue-49232.rs:6:10: 14:6
                                          // + literal: Const { ty: (), val: Value(Scalar(<ZST>)) }
-        StorageDead(_2);                 // bb13[3]: scope 0 at $DIR/issue-49232.rs:14:5: 14:6
-        goto -> bb1;                     // bb13[4]: scope 0 at $DIR/issue-49232.rs:6:5: 14:6
+        StorageDead(_2);                 // scope 0 at $DIR/issue-49232.rs:14:5: 14:6
+        goto -> bb1;                     // scope 0 at $DIR/issue-49232.rs:6:5: 14:6
     }
 
     bb14: {
-        return;                          // bb14[0]: scope 0 at $DIR/issue-49232.rs:15:2: 15:2
+        return;                          // scope 0 at $DIR/issue-49232.rs:15:2: 15:2
     }
 }
diff --git a/src/test/mir-opt/issue-62289/rustc.test.ElaborateDrops.before.mir b/src/test/mir-opt/issue-62289/rustc.test.ElaborateDrops.before.mir
index 8970cc83f2b..0b8b03961f2 100644
--- a/src/test/mir-opt/issue-62289/rustc.test.ElaborateDrops.before.mir
+++ b/src/test/mir-opt/issue-62289/rustc.test.ElaborateDrops.before.mir
@@ -24,13 +24,13 @@ fn test() -> std::option::Option<std::boxed::Box<u32>> {
     }
 
     bb0: {
-        StorageLive(_1);                 // bb0[0]: scope 0 at $DIR/issue-62289.rs:9:10: 9:21
-        StorageLive(_2);                 // bb0[1]: scope 0 at $DIR/issue-62289.rs:9:10: 9:21
-        _2 = Box(u32);                   // bb0[2]: scope 0 at $DIR/issue-62289.rs:9:10: 9:21
-        StorageLive(_3);                 // bb0[3]: scope 0 at $DIR/issue-62289.rs:9:15: 9:20
-        StorageLive(_4);                 // bb0[4]: scope 0 at $DIR/issue-62289.rs:9:15: 9:19
-        _4 = std::option::Option::<u32>::None; // bb0[5]: scope 0 at $DIR/issue-62289.rs:9:15: 9:19
-        _3 = const <std::option::Option<u32> as std::ops::Try>::into_result(move _4) -> [return: bb2, unwind: bb3]; // bb0[6]: scope 0 at $DIR/issue-62289.rs:9:15: 9:20
+        StorageLive(_1);                 // scope 0 at $DIR/issue-62289.rs:9:10: 9:21
+        StorageLive(_2);                 // scope 0 at $DIR/issue-62289.rs:9:10: 9:21
+        _2 = Box(u32);                   // scope 0 at $DIR/issue-62289.rs:9:10: 9:21
+        StorageLive(_3);                 // scope 0 at $DIR/issue-62289.rs:9:15: 9:20
+        StorageLive(_4);                 // scope 0 at $DIR/issue-62289.rs:9:15: 9:19
+        _4 = std::option::Option::<u32>::None; // scope 0 at $DIR/issue-62289.rs:9:15: 9:19
+        _3 = const <std::option::Option<u32> as std::ops::Try>::into_result(move _4) -> [return: bb2, unwind: bb3]; // scope 0 at $DIR/issue-62289.rs:9:15: 9:20
                                          // ty::Const
                                          // + ty: fn(std::option::Option<u32>) -> std::result::Result<<std::option::Option<u32> as std::ops::Try>::Ok, <std::option::Option<u32> as std::ops::Try>::Error> {<std::option::Option<u32> as std::ops::Try>::into_result}
                                          // + val: Value(Scalar(<ZST>))
@@ -40,39 +40,39 @@ fn test() -> std::option::Option<std::boxed::Box<u32>> {
     }
 
     bb1 (cleanup): {
-        resume;                          // bb1[0]: scope 0 at $DIR/issue-62289.rs:8:1: 10:2
+        resume;                          // scope 0 at $DIR/issue-62289.rs:8:1: 10:2
     }
 
     bb2: {
-        StorageDead(_4);                 // bb2[0]: scope 0 at $DIR/issue-62289.rs:9:19: 9:20
-        _5 = discriminant(_3);           // bb2[1]: scope 0 at $DIR/issue-62289.rs:9:19: 9:20
-        switchInt(move _5) -> [0isize: bb4, 1isize: bb6, otherwise: bb5]; // bb2[2]: scope 0 at $DIR/issue-62289.rs:9:19: 9:20
+        StorageDead(_4);                 // scope 0 at $DIR/issue-62289.rs:9:19: 9:20
+        _5 = discriminant(_3);           // scope 0 at $DIR/issue-62289.rs:9:19: 9:20
+        switchInt(move _5) -> [0isize: bb4, 1isize: bb6, otherwise: bb5]; // scope 0 at $DIR/issue-62289.rs:9:19: 9:20
     }
 
     bb3 (cleanup): {
-        drop(_2) -> bb1;                 // bb3[0]: scope 0 at $DIR/issue-62289.rs:9:20: 9:21
+        drop(_2) -> bb1;                 // scope 0 at $DIR/issue-62289.rs:9:20: 9:21
     }
 
     bb4: {
-        StorageLive(_10);                // bb4[0]: scope 0 at $DIR/issue-62289.rs:9:15: 9:20
-        _10 = ((_3 as Ok).0: u32);       // bb4[1]: scope 0 at $DIR/issue-62289.rs:9:15: 9:20
-        (*_2) = _10;                     // bb4[2]: scope 4 at $DIR/issue-62289.rs:9:15: 9:20
-        StorageDead(_10);                // bb4[3]: scope 0 at $DIR/issue-62289.rs:9:19: 9:20
-        _1 = move _2;                    // bb4[4]: scope 0 at $DIR/issue-62289.rs:9:10: 9:21
-        drop(_2) -> [return: bb12, unwind: bb11]; // bb4[5]: scope 0 at $DIR/issue-62289.rs:9:20: 9:21
+        StorageLive(_10);                // scope 0 at $DIR/issue-62289.rs:9:15: 9:20
+        _10 = ((_3 as Ok).0: u32);       // scope 0 at $DIR/issue-62289.rs:9:15: 9:20
+        (*_2) = _10;                     // scope 4 at $DIR/issue-62289.rs:9:15: 9:20
+        StorageDead(_10);                // scope 0 at $DIR/issue-62289.rs:9:19: 9:20
+        _1 = move _2;                    // scope 0 at $DIR/issue-62289.rs:9:10: 9:21
+        drop(_2) -> [return: bb12, unwind: bb11]; // scope 0 at $DIR/issue-62289.rs:9:20: 9:21
     }
 
     bb5: {
-        unreachable;                     // bb5[0]: scope 0 at $DIR/issue-62289.rs:9:15: 9:20
+        unreachable;                     // scope 0 at $DIR/issue-62289.rs:9:15: 9:20
     }
 
     bb6: {
-        StorageLive(_6);                 // bb6[0]: scope 0 at $DIR/issue-62289.rs:9:19: 9:20
-        _6 = ((_3 as Err).0: std::option::NoneError); // bb6[1]: scope 0 at $DIR/issue-62289.rs:9:19: 9:20
-        StorageLive(_8);                 // bb6[2]: scope 2 at $DIR/issue-62289.rs:9:19: 9:20
-        StorageLive(_9);                 // bb6[3]: scope 2 at $DIR/issue-62289.rs:9:19: 9:20
-        _9 = _6;                         // bb6[4]: scope 2 at $DIR/issue-62289.rs:9:19: 9:20
-        _8 = const <std::option::NoneError as std::convert::From<std::option::NoneError>>::from(move _9) -> [return: bb8, unwind: bb3]; // bb6[5]: scope 2 at $DIR/issue-62289.rs:9:19: 9:20
+        StorageLive(_6);                 // scope 0 at $DIR/issue-62289.rs:9:19: 9:20
+        _6 = ((_3 as Err).0: std::option::NoneError); // scope 0 at $DIR/issue-62289.rs:9:19: 9:20
+        StorageLive(_8);                 // scope 2 at $DIR/issue-62289.rs:9:19: 9:20
+        StorageLive(_9);                 // scope 2 at $DIR/issue-62289.rs:9:19: 9:20
+        _9 = _6;                         // scope 2 at $DIR/issue-62289.rs:9:19: 9:20
+        _8 = const <std::option::NoneError as std::convert::From<std::option::NoneError>>::from(move _9) -> [return: bb8, unwind: bb3]; // scope 2 at $DIR/issue-62289.rs:9:19: 9:20
                                          // ty::Const
                                          // + ty: fn(std::option::NoneError) -> std::option::NoneError {<std::option::NoneError as std::convert::From<std::option::NoneError>>::from}
                                          // + val: Value(Scalar(<ZST>))
@@ -82,12 +82,12 @@ fn test() -> std::option::Option<std::boxed::Box<u32>> {
     }
 
     bb7: {
-        return;                          // bb7[0]: scope 0 at $DIR/issue-62289.rs:10:2: 10:2
+        return;                          // scope 0 at $DIR/issue-62289.rs:10:2: 10:2
     }
 
     bb8: {
-        StorageDead(_9);                 // bb8[0]: scope 2 at $DIR/issue-62289.rs:9:19: 9:20
-        _0 = const <std::option::Option<std::boxed::Box<u32>> as std::ops::Try>::from_error(move _8) -> [return: bb9, unwind: bb3]; // bb8[1]: scope 2 at $DIR/issue-62289.rs:9:19: 9:20
+        StorageDead(_9);                 // scope 2 at $DIR/issue-62289.rs:9:19: 9:20
+        _0 = const <std::option::Option<std::boxed::Box<u32>> as std::ops::Try>::from_error(move _8) -> [return: bb9, unwind: bb3]; // scope 2 at $DIR/issue-62289.rs:9:19: 9:20
                                          // ty::Const
                                          // + ty: fn(<std::option::Option<std::boxed::Box<u32>> as std::ops::Try>::Error) -> std::option::Option<std::boxed::Box<u32>> {<std::option::Option<std::boxed::Box<u32>> as std::ops::Try>::from_error}
                                          // + val: Value(Scalar(<ZST>))
@@ -97,31 +97,31 @@ fn test() -> std::option::Option<std::boxed::Box<u32>> {
     }
 
     bb9: {
-        StorageDead(_8);                 // bb9[0]: scope 2 at $DIR/issue-62289.rs:9:19: 9:20
-        StorageDead(_6);                 // bb9[1]: scope 0 at $DIR/issue-62289.rs:9:19: 9:20
-        drop(_2) -> bb10;                // bb9[2]: scope 0 at $DIR/issue-62289.rs:9:20: 9:21
+        StorageDead(_8);                 // scope 2 at $DIR/issue-62289.rs:9:19: 9:20
+        StorageDead(_6);                 // scope 0 at $DIR/issue-62289.rs:9:19: 9:20
+        drop(_2) -> bb10;                // scope 0 at $DIR/issue-62289.rs:9:20: 9:21
     }
 
     bb10: {
-        StorageDead(_2);                 // bb10[0]: scope 0 at $DIR/issue-62289.rs:9:20: 9:21
-        StorageDead(_1);                 // bb10[1]: scope 0 at $DIR/issue-62289.rs:9:21: 9:22
-        StorageDead(_3);                 // bb10[2]: scope 0 at $DIR/issue-62289.rs:10:1: 10:2
-        goto -> bb7;                     // bb10[3]: scope 0 at $DIR/issue-62289.rs:9:19: 9:20
+        StorageDead(_2);                 // scope 0 at $DIR/issue-62289.rs:9:20: 9:21
+        StorageDead(_1);                 // scope 0 at $DIR/issue-62289.rs:9:21: 9:22
+        StorageDead(_3);                 // scope 0 at $DIR/issue-62289.rs:10:1: 10:2
+        goto -> bb7;                     // scope 0 at $DIR/issue-62289.rs:9:19: 9:20
     }
 
     bb11 (cleanup): {
-        drop(_1) -> bb1;                 // bb11[0]: scope 0 at $DIR/issue-62289.rs:9:21: 9:22
+        drop(_1) -> bb1;                 // scope 0 at $DIR/issue-62289.rs:9:21: 9:22
     }
 
     bb12: {
-        StorageDead(_2);                 // bb12[0]: scope 0 at $DIR/issue-62289.rs:9:20: 9:21
-        _0 = std::option::Option::<std::boxed::Box<u32>>::Some(move _1); // bb12[1]: scope 0 at $DIR/issue-62289.rs:9:5: 9:22
-        drop(_1) -> bb13;                // bb12[2]: scope 0 at $DIR/issue-62289.rs:9:21: 9:22
+        StorageDead(_2);                 // scope 0 at $DIR/issue-62289.rs:9:20: 9:21
+        _0 = std::option::Option::<std::boxed::Box<u32>>::Some(move _1); // scope 0 at $DIR/issue-62289.rs:9:5: 9:22
+        drop(_1) -> bb13;                // scope 0 at $DIR/issue-62289.rs:9:21: 9:22
     }
 
     bb13: {
-        StorageDead(_1);                 // bb13[0]: scope 0 at $DIR/issue-62289.rs:9:21: 9:22
-        StorageDead(_3);                 // bb13[1]: scope 0 at $DIR/issue-62289.rs:10:1: 10:2
-        goto -> bb7;                     // bb13[2]: scope 0 at $DIR/issue-62289.rs:10:2: 10:2
+        StorageDead(_1);                 // scope 0 at $DIR/issue-62289.rs:9:21: 9:22
+        StorageDead(_3);                 // scope 0 at $DIR/issue-62289.rs:10:1: 10:2
+        goto -> bb7;                     // scope 0 at $DIR/issue-62289.rs:10:2: 10:2
     }
 }
diff --git a/src/test/mir-opt/loop_test/rustc.main.SimplifyCfg-qualify-consts.after.mir b/src/test/mir-opt/loop_test/rustc.main.SimplifyCfg-qualify-consts.after.mir
index df05dbabc77..38e04a6399f 100644
--- a/src/test/mir-opt/loop_test/rustc.main.SimplifyCfg-qualify-consts.after.mir
+++ b/src/test/mir-opt/loop_test/rustc.main.SimplifyCfg-qualify-consts.after.mir
@@ -13,69 +13,69 @@ fn main() -> () {
     }
 
     bb0: {
-        StorageLive(_1);                 // bb0[0]: scope 0 at $DIR/loop_test.rs:10:5: 12:6
-        StorageLive(_2);                 // bb0[1]: scope 0 at $DIR/loop_test.rs:10:8: 10:12
-        _2 = const true;                 // bb0[2]: scope 0 at $DIR/loop_test.rs:10:8: 10:12
+        StorageLive(_1);                 // scope 0 at $DIR/loop_test.rs:10:5: 12:6
+        StorageLive(_2);                 // scope 0 at $DIR/loop_test.rs:10:8: 10:12
+        _2 = const true;                 // scope 0 at $DIR/loop_test.rs:10:8: 10:12
                                          // ty::Const
                                          // + ty: bool
                                          // + val: Value(Scalar(0x01))
                                          // mir::Constant
                                          // + span: $DIR/loop_test.rs:10:8: 10:12
                                          // + literal: Const { ty: bool, val: Value(Scalar(0x01)) }
-        FakeRead(ForMatchedPlace, _2);   // bb0[3]: scope 0 at $DIR/loop_test.rs:10:8: 10:12
-        switchInt(_2) -> [false: bb3, otherwise: bb2]; // bb0[4]: scope 0 at $DIR/loop_test.rs:10:5: 12:6
+        FakeRead(ForMatchedPlace, _2);   // scope 0 at $DIR/loop_test.rs:10:8: 10:12
+        switchInt(_2) -> [false: bb3, otherwise: bb2]; // scope 0 at $DIR/loop_test.rs:10:5: 12:6
     }
 
     bb1 (cleanup): {
-        resume;                          // bb1[0]: scope 0 at $DIR/loop_test.rs:6:1: 17:2
+        resume;                          // scope 0 at $DIR/loop_test.rs:6:1: 17:2
     }
 
     bb2: {
-        falseEdges -> [real: bb4, imaginary: bb3]; // bb2[0]: scope 0 at $DIR/loop_test.rs:10:5: 12:6
+        falseEdges -> [real: bb4, imaginary: bb3]; // scope 0 at $DIR/loop_test.rs:10:5: 12:6
     }
 
     bb3: {
-        _1 = const ();                   // bb3[0]: scope 0 at $DIR/loop_test.rs:10:5: 12:6
+        _1 = const ();                   // scope 0 at $DIR/loop_test.rs:10:5: 12:6
                                          // ty::Const
                                          // + ty: ()
                                          // + val: Value(Scalar(<ZST>))
                                          // mir::Constant
                                          // + span: $DIR/loop_test.rs:10:5: 12:6
                                          // + literal: Const { ty: (), val: Value(Scalar(<ZST>)) }
-        StorageDead(_2);                 // bb3[1]: scope 0 at $DIR/loop_test.rs:12:5: 12:6
-        StorageDead(_1);                 // bb3[2]: scope 0 at $DIR/loop_test.rs:12:5: 12:6
-        StorageLive(_4);                 // bb3[3]: scope 0 at $DIR/loop_test.rs:13:5: 16:6
-        goto -> bb5;                     // bb3[4]: scope 0 at $DIR/loop_test.rs:13:5: 16:6
+        StorageDead(_2);                 // scope 0 at $DIR/loop_test.rs:12:5: 12:6
+        StorageDead(_1);                 // scope 0 at $DIR/loop_test.rs:12:5: 12:6
+        StorageLive(_4);                 // scope 0 at $DIR/loop_test.rs:13:5: 16:6
+        goto -> bb5;                     // scope 0 at $DIR/loop_test.rs:13:5: 16:6
     }
 
     bb4: {
-        _0 = const ();                   // bb4[0]: scope 0 at $DIR/loop_test.rs:11:9: 11:15
+        _0 = const ();                   // scope 0 at $DIR/loop_test.rs:11:9: 11:15
                                          // ty::Const
                                          // + ty: ()
                                          // + val: Value(Scalar(<ZST>))
                                          // mir::Constant
                                          // + span: $DIR/loop_test.rs:11:9: 11:15
                                          // + literal: Const { ty: (), val: Value(Scalar(<ZST>)) }
-        StorageDead(_2);                 // bb4[1]: scope 0 at $DIR/loop_test.rs:12:5: 12:6
-        StorageDead(_1);                 // bb4[2]: scope 0 at $DIR/loop_test.rs:12:5: 12:6
-        return;                          // bb4[3]: scope 0 at $DIR/loop_test.rs:17:2: 17:2
+        StorageDead(_2);                 // scope 0 at $DIR/loop_test.rs:12:5: 12:6
+        StorageDead(_1);                 // scope 0 at $DIR/loop_test.rs:12:5: 12:6
+        return;                          // scope 0 at $DIR/loop_test.rs:17:2: 17:2
     }
 
     bb5: {
-        falseUnwind -> [real: bb6, cleanup: bb1]; // bb5[0]: scope 0 at $DIR/loop_test.rs:13:5: 16:6
+        falseUnwind -> [real: bb6, cleanup: bb1]; // scope 0 at $DIR/loop_test.rs:13:5: 16:6
     }
 
     bb6: {
-        StorageLive(_6);                 // bb6[0]: scope 0 at $DIR/loop_test.rs:14:13: 14:14
-        _6 = const 1i32;                 // bb6[1]: scope 0 at $DIR/loop_test.rs:14:17: 14:18
+        StorageLive(_6);                 // scope 0 at $DIR/loop_test.rs:14:13: 14:14
+        _6 = const 1i32;                 // scope 0 at $DIR/loop_test.rs:14:17: 14:18
                                          // ty::Const
                                          // + ty: i32
                                          // + val: Value(Scalar(0x00000001))
                                          // mir::Constant
                                          // + span: $DIR/loop_test.rs:14:17: 14:18
                                          // + literal: Const { ty: i32, val: Value(Scalar(0x00000001)) }
-        FakeRead(ForLet, _6);            // bb6[2]: scope 0 at $DIR/loop_test.rs:14:13: 14:14
-        StorageDead(_6);                 // bb6[3]: scope 0 at $DIR/loop_test.rs:16:5: 16:6
-        goto -> bb5;                     // bb6[4]: scope 0 at $DIR/loop_test.rs:15:9: 15:17
+        FakeRead(ForLet, _6);            // scope 0 at $DIR/loop_test.rs:14:13: 14:14
+        StorageDead(_6);                 // scope 0 at $DIR/loop_test.rs:16:5: 16:6
+        goto -> bb5;                     // scope 0 at $DIR/loop_test.rs:15:9: 15:17
     }
 }
diff --git a/src/test/mir-opt/match-arm-scopes/rustc.complicated_match.ElaborateDrops.after.mir b/src/test/mir-opt/match-arm-scopes/rustc.complicated_match.ElaborateDrops.after.mir
index 0b60f4f3321..856248e90d4 100644
--- a/src/test/mir-opt/match-arm-scopes/rustc.complicated_match.ElaborateDrops.after.mir
+++ b/src/test/mir-opt/match-arm-scopes/rustc.complicated_match.ElaborateDrops.after.mir
@@ -30,206 +30,206 @@ fn complicated_match(_1: bool, _2: (bool, bool, std::string::String)) -> i32 {
     }
 
     bb0: {
-        switchInt((_2.0: bool)) -> [false: bb6, otherwise: bb2]; // bb0[0]: scope 0 at $DIR/match-arm-scopes.rs:16:10: 16:15
+        switchInt((_2.0: bool)) -> [false: bb6, otherwise: bb2]; // scope 0 at $DIR/match-arm-scopes.rs:16:10: 16:15
     }
 
     bb1 (cleanup): {
-        resume;                          // bb1[0]: scope 0 at $DIR/match-arm-scopes.rs:14:1: 19:2
+        resume;                          // scope 0 at $DIR/match-arm-scopes.rs:14:1: 19:2
     }
 
     bb2: {
-        switchInt((_2.1: bool)) -> [false: bb14, otherwise: bb3]; // bb2[0]: scope 0 at $DIR/match-arm-scopes.rs:16:29: 16:34
+        switchInt((_2.1: bool)) -> [false: bb14, otherwise: bb3]; // scope 0 at $DIR/match-arm-scopes.rs:16:29: 16:34
     }
 
     bb3: {
-        switchInt((_2.0: bool)) -> [false: bb4, otherwise: bb21]; // bb3[0]: scope 0 at $DIR/match-arm-scopes.rs:17:10: 17:14
+        switchInt((_2.0: bool)) -> [false: bb4, otherwise: bb21]; // scope 0 at $DIR/match-arm-scopes.rs:17:10: 17:14
     }
 
     bb4: {
-        StorageLive(_15);                // bb4[0]: scope 0 at $DIR/match-arm-scopes.rs:17:32: 17:33
-        _15 = (_2.1: bool);              // bb4[1]: scope 0 at $DIR/match-arm-scopes.rs:17:32: 17:33
-        StorageLive(_16);                // bb4[2]: scope 0 at $DIR/match-arm-scopes.rs:17:35: 17:36
-        _16 = move (_2.2: std::string::String); // bb4[3]: scope 0 at $DIR/match-arm-scopes.rs:17:35: 17:36
-        goto -> bb20;                    // bb4[4]: scope 0 at $DIR/match-arm-scopes.rs:15:5: 18:6
+        StorageLive(_15);                // scope 0 at $DIR/match-arm-scopes.rs:17:32: 17:33
+        _15 = (_2.1: bool);              // scope 0 at $DIR/match-arm-scopes.rs:17:32: 17:33
+        StorageLive(_16);                // scope 0 at $DIR/match-arm-scopes.rs:17:35: 17:36
+        _16 = move (_2.2: std::string::String); // scope 0 at $DIR/match-arm-scopes.rs:17:35: 17:36
+        goto -> bb20;                    // scope 0 at $DIR/match-arm-scopes.rs:15:5: 18:6
     }
 
     bb5: {
-        _0 = const 1i32;                 // bb5[0]: scope 1 at $DIR/match-arm-scopes.rs:16:77: 16:78
+        _0 = const 1i32;                 // scope 1 at $DIR/match-arm-scopes.rs:16:77: 16:78
                                          // ty::Const
                                          // + ty: i32
                                          // + val: Value(Scalar(0x00000001))
                                          // mir::Constant
                                          // + span: $DIR/match-arm-scopes.rs:16:77: 16:78
                                          // + literal: Const { ty: i32, val: Value(Scalar(0x00000001)) }
-        drop(_7) -> [return: bb19, unwind: bb10]; // bb5[1]: scope 0 at $DIR/match-arm-scopes.rs:16:78: 16:79
+        drop(_7) -> [return: bb19, unwind: bb10]; // scope 0 at $DIR/match-arm-scopes.rs:16:78: 16:79
     }
 
     bb6: {
-        StorageLive(_6);                 // bb6[0]: scope 0 at $DIR/match-arm-scopes.rs:16:17: 16:18
-        _6 = &(_2.1: bool);              // bb6[1]: scope 0 at $DIR/match-arm-scopes.rs:16:17: 16:18
-        StorageLive(_8);                 // bb6[2]: scope 0 at $DIR/match-arm-scopes.rs:16:20: 16:21
-        _8 = &(_2.2: std::string::String); // bb6[3]: scope 0 at $DIR/match-arm-scopes.rs:16:20: 16:21
-        StorageLive(_9);                 // bb6[4]: scope 0 at $DIR/match-arm-scopes.rs:16:42: 16:73
-        StorageLive(_10);                // bb6[5]: scope 0 at $DIR/match-arm-scopes.rs:16:45: 16:49
-        _10 = _1;                        // bb6[6]: scope 0 at $DIR/match-arm-scopes.rs:16:45: 16:49
-        switchInt(_10) -> [false: bb7, otherwise: bb8]; // bb6[7]: scope 0 at $DIR/match-arm-scopes.rs:16:42: 16:73
+        StorageLive(_6);                 // scope 0 at $DIR/match-arm-scopes.rs:16:17: 16:18
+        _6 = &(_2.1: bool);              // scope 0 at $DIR/match-arm-scopes.rs:16:17: 16:18
+        StorageLive(_8);                 // scope 0 at $DIR/match-arm-scopes.rs:16:20: 16:21
+        _8 = &(_2.2: std::string::String); // scope 0 at $DIR/match-arm-scopes.rs:16:20: 16:21
+        StorageLive(_9);                 // scope 0 at $DIR/match-arm-scopes.rs:16:42: 16:73
+        StorageLive(_10);                // scope 0 at $DIR/match-arm-scopes.rs:16:45: 16:49
+        _10 = _1;                        // scope 0 at $DIR/match-arm-scopes.rs:16:45: 16:49
+        switchInt(_10) -> [false: bb7, otherwise: bb8]; // scope 0 at $DIR/match-arm-scopes.rs:16:42: 16:73
     }
 
     bb7: {
-        _9 = (*_6);                      // bb7[0]: scope 0 at $DIR/match-arm-scopes.rs:16:70: 16:71
-        StorageDead(_10);                // bb7[1]: scope 0 at $DIR/match-arm-scopes.rs:16:72: 16:73
-        switchInt(move _9) -> [false: bb13, otherwise: bb12]; // bb7[2]: scope 0 at $DIR/match-arm-scopes.rs:16:42: 16:73
+        _9 = (*_6);                      // scope 0 at $DIR/match-arm-scopes.rs:16:70: 16:71
+        StorageDead(_10);                // scope 0 at $DIR/match-arm-scopes.rs:16:72: 16:73
+        switchInt(move _9) -> [false: bb13, otherwise: bb12]; // scope 0 at $DIR/match-arm-scopes.rs:16:42: 16:73
     }
 
     bb8: {
-        _0 = const 3i32;                 // bb8[0]: scope 0 at $DIR/match-arm-scopes.rs:16:59: 16:60
+        _0 = const 3i32;                 // scope 0 at $DIR/match-arm-scopes.rs:16:59: 16:60
                                          // ty::Const
                                          // + ty: i32
                                          // + val: Value(Scalar(0x00000003))
                                          // mir::Constant
                                          // + span: $DIR/match-arm-scopes.rs:16:59: 16:60
                                          // + literal: Const { ty: i32, val: Value(Scalar(0x00000003)) }
-        StorageDead(_10);                // bb8[1]: scope 0 at $DIR/match-arm-scopes.rs:16:72: 16:73
-        StorageDead(_9);                 // bb8[2]: scope 0 at $DIR/match-arm-scopes.rs:16:78: 16:79
-        StorageDead(_8);                 // bb8[3]: scope 0 at $DIR/match-arm-scopes.rs:16:78: 16:79
-        StorageDead(_6);                 // bb8[4]: scope 0 at $DIR/match-arm-scopes.rs:16:78: 16:79
-        goto -> bb11;                    // bb8[5]: scope 0 at $DIR/match-arm-scopes.rs:16:52: 16:60
+        StorageDead(_10);                // scope 0 at $DIR/match-arm-scopes.rs:16:72: 16:73
+        StorageDead(_9);                 // scope 0 at $DIR/match-arm-scopes.rs:16:78: 16:79
+        StorageDead(_8);                 // scope 0 at $DIR/match-arm-scopes.rs:16:78: 16:79
+        StorageDead(_6);                 // scope 0 at $DIR/match-arm-scopes.rs:16:78: 16:79
+        goto -> bb11;                    // scope 0 at $DIR/match-arm-scopes.rs:16:52: 16:60
     }
 
     bb9: {
-        return;                          // bb9[0]: scope 0 at $DIR/match-arm-scopes.rs:19:2: 19:2
+        return;                          // scope 0 at $DIR/match-arm-scopes.rs:19:2: 19:2
     }
 
     bb10 (cleanup): {
-        goto -> bb25;                    // bb10[0]: scope 0 at $DIR/match-arm-scopes.rs:19:1: 19:2
+        goto -> bb25;                    // scope 0 at $DIR/match-arm-scopes.rs:19:1: 19:2
     }
 
     bb11: {
-        drop(_2) -> [return: bb9, unwind: bb1]; // bb11[0]: scope 0 at $DIR/match-arm-scopes.rs:19:1: 19:2
+        drop(_2) -> [return: bb9, unwind: bb1]; // scope 0 at $DIR/match-arm-scopes.rs:19:1: 19:2
     }
 
     bb12: {
-        StorageDead(_9);                 // bb12[0]: scope 0 at $DIR/match-arm-scopes.rs:16:78: 16:79
-        StorageLive(_5);                 // bb12[1]: scope 0 at $DIR/match-arm-scopes.rs:16:17: 16:18
-        _5 = (_2.1: bool);               // bb12[2]: scope 0 at $DIR/match-arm-scopes.rs:16:17: 16:18
-        StorageLive(_7);                 // bb12[3]: scope 0 at $DIR/match-arm-scopes.rs:16:20: 16:21
-        _7 = move (_2.2: std::string::String); // bb12[4]: scope 0 at $DIR/match-arm-scopes.rs:16:20: 16:21
-        goto -> bb5;                     // bb12[5]: scope 0 at $DIR/match-arm-scopes.rs:15:5: 18:6
+        StorageDead(_9);                 // scope 0 at $DIR/match-arm-scopes.rs:16:78: 16:79
+        StorageLive(_5);                 // scope 0 at $DIR/match-arm-scopes.rs:16:17: 16:18
+        _5 = (_2.1: bool);               // scope 0 at $DIR/match-arm-scopes.rs:16:17: 16:18
+        StorageLive(_7);                 // scope 0 at $DIR/match-arm-scopes.rs:16:20: 16:21
+        _7 = move (_2.2: std::string::String); // scope 0 at $DIR/match-arm-scopes.rs:16:20: 16:21
+        goto -> bb5;                     // scope 0 at $DIR/match-arm-scopes.rs:15:5: 18:6
     }
 
     bb13: {
-        StorageDead(_9);                 // bb13[0]: scope 0 at $DIR/match-arm-scopes.rs:16:78: 16:79
-        StorageDead(_8);                 // bb13[1]: scope 0 at $DIR/match-arm-scopes.rs:16:78: 16:79
-        StorageDead(_6);                 // bb13[2]: scope 0 at $DIR/match-arm-scopes.rs:16:78: 16:79
-        goto -> bb2;                     // bb13[3]: scope 0 at $DIR/match-arm-scopes.rs:16:42: 16:73
+        StorageDead(_9);                 // scope 0 at $DIR/match-arm-scopes.rs:16:78: 16:79
+        StorageDead(_8);                 // scope 0 at $DIR/match-arm-scopes.rs:16:78: 16:79
+        StorageDead(_6);                 // scope 0 at $DIR/match-arm-scopes.rs:16:78: 16:79
+        goto -> bb2;                     // scope 0 at $DIR/match-arm-scopes.rs:16:42: 16:73
     }
 
     bb14: {
-        StorageLive(_6);                 // bb14[0]: scope 0 at $DIR/match-arm-scopes.rs:16:26: 16:27
-        _6 = &(_2.0: bool);              // bb14[1]: scope 0 at $DIR/match-arm-scopes.rs:16:26: 16:27
-        StorageLive(_8);                 // bb14[2]: scope 0 at $DIR/match-arm-scopes.rs:16:36: 16:37
-        _8 = &(_2.2: std::string::String); // bb14[3]: scope 0 at $DIR/match-arm-scopes.rs:16:36: 16:37
-        StorageLive(_12);                // bb14[4]: scope 0 at $DIR/match-arm-scopes.rs:16:42: 16:73
-        StorageLive(_13);                // bb14[5]: scope 0 at $DIR/match-arm-scopes.rs:16:45: 16:49
-        _13 = _1;                        // bb14[6]: scope 0 at $DIR/match-arm-scopes.rs:16:45: 16:49
-        switchInt(_13) -> [false: bb15, otherwise: bb16]; // bb14[7]: scope 0 at $DIR/match-arm-scopes.rs:16:42: 16:73
+        StorageLive(_6);                 // scope 0 at $DIR/match-arm-scopes.rs:16:26: 16:27
+        _6 = &(_2.0: bool);              // scope 0 at $DIR/match-arm-scopes.rs:16:26: 16:27
+        StorageLive(_8);                 // scope 0 at $DIR/match-arm-scopes.rs:16:36: 16:37
+        _8 = &(_2.2: std::string::String); // scope 0 at $DIR/match-arm-scopes.rs:16:36: 16:37
+        StorageLive(_12);                // scope 0 at $DIR/match-arm-scopes.rs:16:42: 16:73
+        StorageLive(_13);                // scope 0 at $DIR/match-arm-scopes.rs:16:45: 16:49
+        _13 = _1;                        // scope 0 at $DIR/match-arm-scopes.rs:16:45: 16:49
+        switchInt(_13) -> [false: bb15, otherwise: bb16]; // scope 0 at $DIR/match-arm-scopes.rs:16:42: 16:73
     }
 
     bb15: {
-        _12 = (*_6);                     // bb15[0]: scope 0 at $DIR/match-arm-scopes.rs:16:70: 16:71
-        StorageDead(_13);                // bb15[1]: scope 0 at $DIR/match-arm-scopes.rs:16:72: 16:73
-        switchInt(move _12) -> [false: bb18, otherwise: bb17]; // bb15[2]: scope 0 at $DIR/match-arm-scopes.rs:16:42: 16:73
+        _12 = (*_6);                     // scope 0 at $DIR/match-arm-scopes.rs:16:70: 16:71
+        StorageDead(_13);                // scope 0 at $DIR/match-arm-scopes.rs:16:72: 16:73
+        switchInt(move _12) -> [false: bb18, otherwise: bb17]; // scope 0 at $DIR/match-arm-scopes.rs:16:42: 16:73
     }
 
     bb16: {
-        _0 = const 3i32;                 // bb16[0]: scope 0 at $DIR/match-arm-scopes.rs:16:59: 16:60
+        _0 = const 3i32;                 // scope 0 at $DIR/match-arm-scopes.rs:16:59: 16:60
                                          // ty::Const
                                          // + ty: i32
                                          // + val: Value(Scalar(0x00000003))
                                          // mir::Constant
                                          // + span: $DIR/match-arm-scopes.rs:16:59: 16:60
                                          // + literal: Const { ty: i32, val: Value(Scalar(0x00000003)) }
-        StorageDead(_13);                // bb16[1]: scope 0 at $DIR/match-arm-scopes.rs:16:72: 16:73
-        StorageDead(_12);                // bb16[2]: scope 0 at $DIR/match-arm-scopes.rs:16:78: 16:79
-        StorageDead(_8);                 // bb16[3]: scope 0 at $DIR/match-arm-scopes.rs:16:78: 16:79
-        StorageDead(_6);                 // bb16[4]: scope 0 at $DIR/match-arm-scopes.rs:16:78: 16:79
-        goto -> bb11;                    // bb16[5]: scope 0 at $DIR/match-arm-scopes.rs:16:52: 16:60
+        StorageDead(_13);                // scope 0 at $DIR/match-arm-scopes.rs:16:72: 16:73
+        StorageDead(_12);                // scope 0 at $DIR/match-arm-scopes.rs:16:78: 16:79
+        StorageDead(_8);                 // scope 0 at $DIR/match-arm-scopes.rs:16:78: 16:79
+        StorageDead(_6);                 // scope 0 at $DIR/match-arm-scopes.rs:16:78: 16:79
+        goto -> bb11;                    // scope 0 at $DIR/match-arm-scopes.rs:16:52: 16:60
     }
 
     bb17: {
-        StorageDead(_12);                // bb17[0]: scope 0 at $DIR/match-arm-scopes.rs:16:78: 16:79
-        StorageLive(_5);                 // bb17[1]: scope 0 at $DIR/match-arm-scopes.rs:16:26: 16:27
-        _5 = (_2.0: bool);               // bb17[2]: scope 0 at $DIR/match-arm-scopes.rs:16:26: 16:27
-        StorageLive(_7);                 // bb17[3]: scope 0 at $DIR/match-arm-scopes.rs:16:36: 16:37
-        _7 = move (_2.2: std::string::String); // bb17[4]: scope 0 at $DIR/match-arm-scopes.rs:16:36: 16:37
-        goto -> bb5;                     // bb17[5]: scope 0 at $DIR/match-arm-scopes.rs:15:5: 18:6
+        StorageDead(_12);                // scope 0 at $DIR/match-arm-scopes.rs:16:78: 16:79
+        StorageLive(_5);                 // scope 0 at $DIR/match-arm-scopes.rs:16:26: 16:27
+        _5 = (_2.0: bool);               // scope 0 at $DIR/match-arm-scopes.rs:16:26: 16:27
+        StorageLive(_7);                 // scope 0 at $DIR/match-arm-scopes.rs:16:36: 16:37
+        _7 = move (_2.2: std::string::String); // scope 0 at $DIR/match-arm-scopes.rs:16:36: 16:37
+        goto -> bb5;                     // scope 0 at $DIR/match-arm-scopes.rs:15:5: 18:6
     }
 
     bb18: {
-        StorageDead(_12);                // bb18[0]: scope 0 at $DIR/match-arm-scopes.rs:16:78: 16:79
-        StorageDead(_8);                 // bb18[1]: scope 0 at $DIR/match-arm-scopes.rs:16:78: 16:79
-        StorageDead(_6);                 // bb18[2]: scope 0 at $DIR/match-arm-scopes.rs:16:78: 16:79
-        goto -> bb3;                     // bb18[3]: scope 0 at $DIR/match-arm-scopes.rs:16:42: 16:73
+        StorageDead(_12);                // scope 0 at $DIR/match-arm-scopes.rs:16:78: 16:79
+        StorageDead(_8);                 // scope 0 at $DIR/match-arm-scopes.rs:16:78: 16:79
+        StorageDead(_6);                 // scope 0 at $DIR/match-arm-scopes.rs:16:78: 16:79
+        goto -> bb3;                     // scope 0 at $DIR/match-arm-scopes.rs:16:42: 16:73
     }
 
     bb19: {
-        StorageDead(_7);                 // bb19[0]: scope 0 at $DIR/match-arm-scopes.rs:16:78: 16:79
-        StorageDead(_5);                 // bb19[1]: scope 0 at $DIR/match-arm-scopes.rs:16:78: 16:79
-        StorageDead(_8);                 // bb19[2]: scope 0 at $DIR/match-arm-scopes.rs:16:78: 16:79
-        StorageDead(_6);                 // bb19[3]: scope 0 at $DIR/match-arm-scopes.rs:16:78: 16:79
-        goto -> bb23;                    // bb19[4]: scope 0 at $DIR/match-arm-scopes.rs:15:5: 18:6
+        StorageDead(_7);                 // scope 0 at $DIR/match-arm-scopes.rs:16:78: 16:79
+        StorageDead(_5);                 // scope 0 at $DIR/match-arm-scopes.rs:16:78: 16:79
+        StorageDead(_8);                 // scope 0 at $DIR/match-arm-scopes.rs:16:78: 16:79
+        StorageDead(_6);                 // scope 0 at $DIR/match-arm-scopes.rs:16:78: 16:79
+        goto -> bb23;                    // scope 0 at $DIR/match-arm-scopes.rs:15:5: 18:6
     }
 
     bb20: {
-        _0 = const 2i32;                 // bb20[0]: scope 2 at $DIR/match-arm-scopes.rs:17:41: 17:42
+        _0 = const 2i32;                 // scope 2 at $DIR/match-arm-scopes.rs:17:41: 17:42
                                          // ty::Const
                                          // + ty: i32
                                          // + val: Value(Scalar(0x00000002))
                                          // mir::Constant
                                          // + span: $DIR/match-arm-scopes.rs:17:41: 17:42
                                          // + literal: Const { ty: i32, val: Value(Scalar(0x00000002)) }
-        drop(_16) -> [return: bb22, unwind: bb10]; // bb20[1]: scope 0 at $DIR/match-arm-scopes.rs:17:42: 17:43
+        drop(_16) -> [return: bb22, unwind: bb10]; // scope 0 at $DIR/match-arm-scopes.rs:17:42: 17:43
     }
 
     bb21: {
-        StorageLive(_15);                // bb21[0]: scope 0 at $DIR/match-arm-scopes.rs:17:16: 17:17
-        _15 = (_2.1: bool);              // bb21[1]: scope 0 at $DIR/match-arm-scopes.rs:17:16: 17:17
-        StorageLive(_16);                // bb21[2]: scope 0 at $DIR/match-arm-scopes.rs:17:19: 17:20
-        _16 = move (_2.2: std::string::String); // bb21[3]: scope 0 at $DIR/match-arm-scopes.rs:17:19: 17:20
-        goto -> bb20;                    // bb21[4]: scope 0 at $DIR/match-arm-scopes.rs:15:5: 18:6
+        StorageLive(_15);                // scope 0 at $DIR/match-arm-scopes.rs:17:16: 17:17
+        _15 = (_2.1: bool);              // scope 0 at $DIR/match-arm-scopes.rs:17:16: 17:17
+        StorageLive(_16);                // scope 0 at $DIR/match-arm-scopes.rs:17:19: 17:20
+        _16 = move (_2.2: std::string::String); // scope 0 at $DIR/match-arm-scopes.rs:17:19: 17:20
+        goto -> bb20;                    // scope 0 at $DIR/match-arm-scopes.rs:15:5: 18:6
     }
 
     bb22: {
-        StorageDead(_16);                // bb22[0]: scope 0 at $DIR/match-arm-scopes.rs:17:42: 17:43
-        StorageDead(_15);                // bb22[1]: scope 0 at $DIR/match-arm-scopes.rs:17:42: 17:43
-        goto -> bb23;                    // bb22[2]: scope 0 at $DIR/match-arm-scopes.rs:15:5: 18:6
+        StorageDead(_16);                // scope 0 at $DIR/match-arm-scopes.rs:17:42: 17:43
+        StorageDead(_15);                // scope 0 at $DIR/match-arm-scopes.rs:17:42: 17:43
+        goto -> bb23;                    // scope 0 at $DIR/match-arm-scopes.rs:15:5: 18:6
     }
 
     bb23: {
-        goto -> bb29;                    // bb23[0]: scope 0 at $DIR/match-arm-scopes.rs:19:1: 19:2
+        goto -> bb29;                    // scope 0 at $DIR/match-arm-scopes.rs:19:1: 19:2
     }
 
     bb24 (cleanup): {
-        goto -> bb1;                     // bb24[0]: scope 0 at $DIR/match-arm-scopes.rs:19:1: 19:2
+        goto -> bb1;                     // scope 0 at $DIR/match-arm-scopes.rs:19:1: 19:2
     }
 
     bb25 (cleanup): {
-        goto -> bb24;                    // bb25[0]: scope 0 at $DIR/match-arm-scopes.rs:19:1: 19:2
+        goto -> bb24;                    // scope 0 at $DIR/match-arm-scopes.rs:19:1: 19:2
     }
 
     bb26: {
-        goto -> bb9;                     // bb26[0]: scope 0 at $DIR/match-arm-scopes.rs:19:1: 19:2
+        goto -> bb9;                     // scope 0 at $DIR/match-arm-scopes.rs:19:1: 19:2
     }
 
     bb27 (cleanup): {
-        goto -> bb1;                     // bb27[0]: scope 0 at $DIR/match-arm-scopes.rs:19:1: 19:2
+        goto -> bb1;                     // scope 0 at $DIR/match-arm-scopes.rs:19:1: 19:2
     }
 
     bb28 (cleanup): {
-        goto -> bb27;                    // bb28[0]: scope 0 at $DIR/match-arm-scopes.rs:19:1: 19:2
+        goto -> bb27;                    // scope 0 at $DIR/match-arm-scopes.rs:19:1: 19:2
     }
 
     bb29: {
-        goto -> bb26;                    // bb29[0]: scope 0 at $DIR/match-arm-scopes.rs:19:1: 19:2
+        goto -> bb26;                    // scope 0 at $DIR/match-arm-scopes.rs:19:1: 19:2
     }
 }
diff --git a/src/test/mir-opt/match-arm-scopes/rustc.complicated_match.SimplifyCfg-initial.after.mir b/src/test/mir-opt/match-arm-scopes/rustc.complicated_match.SimplifyCfg-initial.after.mir
index 80ce94a7f3c..63974bda260 100644
--- a/src/test/mir-opt/match-arm-scopes/rustc.complicated_match.SimplifyCfg-initial.after.mir
+++ b/src/test/mir-opt/match-arm-scopes/rustc.complicated_match.SimplifyCfg-initial.after.mir
@@ -30,217 +30,217 @@ fn complicated_match(_1: bool, _2: (bool, bool, std::string::String)) -> i32 {
     }
 
     bb0: {
-        FakeRead(ForMatchedPlace, _2);   // bb0[0]: scope 0 at $DIR/match-arm-scopes.rs:15:11: 15:16
-        switchInt((_2.0: bool)) -> [false: bb2, otherwise: bb3]; // bb0[1]: scope 0 at $DIR/match-arm-scopes.rs:16:10: 16:15
+        FakeRead(ForMatchedPlace, _2);   // scope 0 at $DIR/match-arm-scopes.rs:15:11: 15:16
+        switchInt((_2.0: bool)) -> [false: bb2, otherwise: bb3]; // scope 0 at $DIR/match-arm-scopes.rs:16:10: 16:15
     }
 
     bb1 (cleanup): {
-        resume;                          // bb1[0]: scope 0 at $DIR/match-arm-scopes.rs:14:1: 19:2
+        resume;                          // scope 0 at $DIR/match-arm-scopes.rs:14:1: 19:2
     }
 
     bb2: {
-        falseEdges -> [real: bb9, imaginary: bb4]; // bb2[0]: scope 0 at $DIR/match-arm-scopes.rs:16:9: 16:22
+        falseEdges -> [real: bb9, imaginary: bb4]; // scope 0 at $DIR/match-arm-scopes.rs:16:9: 16:22
     }
 
     bb3: {
-        switchInt((_2.1: bool)) -> [false: bb4, otherwise: bb5]; // bb3[0]: scope 0 at $DIR/match-arm-scopes.rs:16:29: 16:34
+        switchInt((_2.1: bool)) -> [false: bb4, otherwise: bb5]; // scope 0 at $DIR/match-arm-scopes.rs:16:29: 16:34
     }
 
     bb4: {
-        falseEdges -> [real: bb18, imaginary: bb6]; // bb4[0]: scope 0 at $DIR/match-arm-scopes.rs:16:25: 16:38
+        falseEdges -> [real: bb18, imaginary: bb6]; // scope 0 at $DIR/match-arm-scopes.rs:16:25: 16:38
     }
 
     bb5: {
-        switchInt((_2.0: bool)) -> [false: bb7, otherwise: bb6]; // bb5[0]: scope 0 at $DIR/match-arm-scopes.rs:17:10: 17:14
+        switchInt((_2.0: bool)) -> [false: bb7, otherwise: bb6]; // scope 0 at $DIR/match-arm-scopes.rs:17:10: 17:14
     }
 
     bb6: {
-        falseEdges -> [real: bb26, imaginary: bb7]; // bb6[0]: scope 0 at $DIR/match-arm-scopes.rs:17:9: 17:21
+        falseEdges -> [real: bb26, imaginary: bb7]; // scope 0 at $DIR/match-arm-scopes.rs:17:9: 17:21
     }
 
     bb7: {
-        StorageLive(_15);                // bb7[0]: scope 0 at $DIR/match-arm-scopes.rs:17:32: 17:33
-        _15 = (_2.1: bool);              // bb7[1]: scope 0 at $DIR/match-arm-scopes.rs:17:32: 17:33
-        StorageLive(_16);                // bb7[2]: scope 0 at $DIR/match-arm-scopes.rs:17:35: 17:36
-        _16 = move (_2.2: std::string::String); // bb7[3]: scope 0 at $DIR/match-arm-scopes.rs:17:35: 17:36
-        goto -> bb25;                    // bb7[4]: scope 0 at $DIR/match-arm-scopes.rs:15:5: 18:6
+        StorageLive(_15);                // scope 0 at $DIR/match-arm-scopes.rs:17:32: 17:33
+        _15 = (_2.1: bool);              // scope 0 at $DIR/match-arm-scopes.rs:17:32: 17:33
+        StorageLive(_16);                // scope 0 at $DIR/match-arm-scopes.rs:17:35: 17:36
+        _16 = move (_2.2: std::string::String); // scope 0 at $DIR/match-arm-scopes.rs:17:35: 17:36
+        goto -> bb25;                    // scope 0 at $DIR/match-arm-scopes.rs:15:5: 18:6
     }
 
     bb8: {
-        _0 = const 1i32;                 // bb8[0]: scope 1 at $DIR/match-arm-scopes.rs:16:77: 16:78
+        _0 = const 1i32;                 // scope 1 at $DIR/match-arm-scopes.rs:16:77: 16:78
                                          // ty::Const
                                          // + ty: i32
                                          // + val: Value(Scalar(0x00000001))
                                          // mir::Constant
                                          // + span: $DIR/match-arm-scopes.rs:16:77: 16:78
                                          // + literal: Const { ty: i32, val: Value(Scalar(0x00000001)) }
-        drop(_7) -> [return: bb24, unwind: bb14]; // bb8[1]: scope 0 at $DIR/match-arm-scopes.rs:16:78: 16:79
+        drop(_7) -> [return: bb24, unwind: bb14]; // scope 0 at $DIR/match-arm-scopes.rs:16:78: 16:79
     }
 
     bb9: {
-        StorageLive(_6);                 // bb9[0]: scope 0 at $DIR/match-arm-scopes.rs:16:17: 16:18
-        _6 = &(_2.1: bool);              // bb9[1]: scope 0 at $DIR/match-arm-scopes.rs:16:17: 16:18
-        StorageLive(_8);                 // bb9[2]: scope 0 at $DIR/match-arm-scopes.rs:16:20: 16:21
-        _8 = &(_2.2: std::string::String); // bb9[3]: scope 0 at $DIR/match-arm-scopes.rs:16:20: 16:21
-        _3 = &shallow (_2.0: bool);      // bb9[4]: scope 0 at $DIR/match-arm-scopes.rs:15:11: 15:16
-        _4 = &shallow (_2.1: bool);      // bb9[5]: scope 0 at $DIR/match-arm-scopes.rs:15:11: 15:16
-        StorageLive(_9);                 // bb9[6]: scope 0 at $DIR/match-arm-scopes.rs:16:42: 16:73
-        StorageLive(_10);                // bb9[7]: scope 0 at $DIR/match-arm-scopes.rs:16:45: 16:49
-        _10 = _1;                        // bb9[8]: scope 0 at $DIR/match-arm-scopes.rs:16:45: 16:49
-        FakeRead(ForMatchedPlace, _10);  // bb9[9]: scope 0 at $DIR/match-arm-scopes.rs:16:45: 16:49
-        switchInt(_10) -> [false: bb11, otherwise: bb10]; // bb9[10]: scope 0 at $DIR/match-arm-scopes.rs:16:42: 16:73
+        StorageLive(_6);                 // scope 0 at $DIR/match-arm-scopes.rs:16:17: 16:18
+        _6 = &(_2.1: bool);              // scope 0 at $DIR/match-arm-scopes.rs:16:17: 16:18
+        StorageLive(_8);                 // scope 0 at $DIR/match-arm-scopes.rs:16:20: 16:21
+        _8 = &(_2.2: std::string::String); // scope 0 at $DIR/match-arm-scopes.rs:16:20: 16:21
+        _3 = &shallow (_2.0: bool);      // scope 0 at $DIR/match-arm-scopes.rs:15:11: 15:16
+        _4 = &shallow (_2.1: bool);      // scope 0 at $DIR/match-arm-scopes.rs:15:11: 15:16
+        StorageLive(_9);                 // scope 0 at $DIR/match-arm-scopes.rs:16:42: 16:73
+        StorageLive(_10);                // scope 0 at $DIR/match-arm-scopes.rs:16:45: 16:49
+        _10 = _1;                        // scope 0 at $DIR/match-arm-scopes.rs:16:45: 16:49
+        FakeRead(ForMatchedPlace, _10);  // scope 0 at $DIR/match-arm-scopes.rs:16:45: 16:49
+        switchInt(_10) -> [false: bb11, otherwise: bb10]; // scope 0 at $DIR/match-arm-scopes.rs:16:42: 16:73
     }
 
     bb10: {
-        falseEdges -> [real: bb12, imaginary: bb11]; // bb10[0]: scope 0 at $DIR/match-arm-scopes.rs:16:42: 16:73
+        falseEdges -> [real: bb12, imaginary: bb11]; // scope 0 at $DIR/match-arm-scopes.rs:16:42: 16:73
     }
 
     bb11: {
-        _9 = (*_6);                      // bb11[0]: scope 0 at $DIR/match-arm-scopes.rs:16:70: 16:71
-        StorageDead(_10);                // bb11[1]: scope 0 at $DIR/match-arm-scopes.rs:16:72: 16:73
-        switchInt(move _9) -> [false: bb17, otherwise: bb16]; // bb11[2]: scope 0 at $DIR/match-arm-scopes.rs:16:42: 16:73
+        _9 = (*_6);                      // scope 0 at $DIR/match-arm-scopes.rs:16:70: 16:71
+        StorageDead(_10);                // scope 0 at $DIR/match-arm-scopes.rs:16:72: 16:73
+        switchInt(move _9) -> [false: bb17, otherwise: bb16]; // scope 0 at $DIR/match-arm-scopes.rs:16:42: 16:73
     }
 
     bb12: {
-        _0 = const 3i32;                 // bb12[0]: scope 0 at $DIR/match-arm-scopes.rs:16:59: 16:60
+        _0 = const 3i32;                 // scope 0 at $DIR/match-arm-scopes.rs:16:59: 16:60
                                          // ty::Const
                                          // + ty: i32
                                          // + val: Value(Scalar(0x00000003))
                                          // mir::Constant
                                          // + span: $DIR/match-arm-scopes.rs:16:59: 16:60
                                          // + literal: Const { ty: i32, val: Value(Scalar(0x00000003)) }
-        StorageDead(_10);                // bb12[1]: scope 0 at $DIR/match-arm-scopes.rs:16:72: 16:73
-        StorageDead(_9);                 // bb12[2]: scope 0 at $DIR/match-arm-scopes.rs:16:78: 16:79
-        StorageDead(_8);                 // bb12[3]: scope 0 at $DIR/match-arm-scopes.rs:16:78: 16:79
-        StorageDead(_6);                 // bb12[4]: scope 0 at $DIR/match-arm-scopes.rs:16:78: 16:79
-        goto -> bb15;                    // bb12[5]: scope 0 at $DIR/match-arm-scopes.rs:16:52: 16:60
+        StorageDead(_10);                // scope 0 at $DIR/match-arm-scopes.rs:16:72: 16:73
+        StorageDead(_9);                 // scope 0 at $DIR/match-arm-scopes.rs:16:78: 16:79
+        StorageDead(_8);                 // scope 0 at $DIR/match-arm-scopes.rs:16:78: 16:79
+        StorageDead(_6);                 // scope 0 at $DIR/match-arm-scopes.rs:16:78: 16:79
+        goto -> bb15;                    // scope 0 at $DIR/match-arm-scopes.rs:16:52: 16:60
     }
 
     bb13: {
-        return;                          // bb13[0]: scope 0 at $DIR/match-arm-scopes.rs:19:2: 19:2
+        return;                          // scope 0 at $DIR/match-arm-scopes.rs:19:2: 19:2
     }
 
     bb14 (cleanup): {
-        drop(_2) -> bb1;                 // bb14[0]: scope 0 at $DIR/match-arm-scopes.rs:19:1: 19:2
+        drop(_2) -> bb1;                 // scope 0 at $DIR/match-arm-scopes.rs:19:1: 19:2
     }
 
     bb15: {
-        drop(_2) -> [return: bb13, unwind: bb1]; // bb15[0]: scope 0 at $DIR/match-arm-scopes.rs:19:1: 19:2
+        drop(_2) -> [return: bb13, unwind: bb1]; // scope 0 at $DIR/match-arm-scopes.rs:19:1: 19:2
     }
 
     bb16: {
-        StorageDead(_9);                 // bb16[0]: scope 0 at $DIR/match-arm-scopes.rs:16:78: 16:79
-        FakeRead(ForMatchGuard, _3);     // bb16[1]: scope 0 at $DIR/match-arm-scopes.rs:16:72: 16:73
-        FakeRead(ForMatchGuard, _4);     // bb16[2]: scope 0 at $DIR/match-arm-scopes.rs:16:72: 16:73
-        FakeRead(ForGuardBinding, _6);   // bb16[3]: scope 0 at $DIR/match-arm-scopes.rs:16:72: 16:73
-        FakeRead(ForGuardBinding, _8);   // bb16[4]: scope 0 at $DIR/match-arm-scopes.rs:16:72: 16:73
-        StorageLive(_5);                 // bb16[5]: scope 0 at $DIR/match-arm-scopes.rs:16:17: 16:18
-        _5 = (_2.1: bool);               // bb16[6]: scope 0 at $DIR/match-arm-scopes.rs:16:17: 16:18
-        StorageLive(_7);                 // bb16[7]: scope 0 at $DIR/match-arm-scopes.rs:16:20: 16:21
-        _7 = move (_2.2: std::string::String); // bb16[8]: scope 0 at $DIR/match-arm-scopes.rs:16:20: 16:21
-        goto -> bb8;                     // bb16[9]: scope 0 at $DIR/match-arm-scopes.rs:15:5: 18:6
+        StorageDead(_9);                 // scope 0 at $DIR/match-arm-scopes.rs:16:78: 16:79
+        FakeRead(ForMatchGuard, _3);     // scope 0 at $DIR/match-arm-scopes.rs:16:72: 16:73
+        FakeRead(ForMatchGuard, _4);     // scope 0 at $DIR/match-arm-scopes.rs:16:72: 16:73
+        FakeRead(ForGuardBinding, _6);   // scope 0 at $DIR/match-arm-scopes.rs:16:72: 16:73
+        FakeRead(ForGuardBinding, _8);   // scope 0 at $DIR/match-arm-scopes.rs:16:72: 16:73
+        StorageLive(_5);                 // scope 0 at $DIR/match-arm-scopes.rs:16:17: 16:18
+        _5 = (_2.1: bool);               // scope 0 at $DIR/match-arm-scopes.rs:16:17: 16:18
+        StorageLive(_7);                 // scope 0 at $DIR/match-arm-scopes.rs:16:20: 16:21
+        _7 = move (_2.2: std::string::String); // scope 0 at $DIR/match-arm-scopes.rs:16:20: 16:21
+        goto -> bb8;                     // scope 0 at $DIR/match-arm-scopes.rs:15:5: 18:6
     }
 
     bb17: {
-        StorageDead(_9);                 // bb17[0]: scope 0 at $DIR/match-arm-scopes.rs:16:78: 16:79
-        StorageDead(_8);                 // bb17[1]: scope 0 at $DIR/match-arm-scopes.rs:16:78: 16:79
-        StorageDead(_6);                 // bb17[2]: scope 0 at $DIR/match-arm-scopes.rs:16:78: 16:79
-        falseEdges -> [real: bb3, imaginary: bb4]; // bb17[3]: scope 0 at $DIR/match-arm-scopes.rs:16:42: 16:73
+        StorageDead(_9);                 // scope 0 at $DIR/match-arm-scopes.rs:16:78: 16:79
+        StorageDead(_8);                 // scope 0 at $DIR/match-arm-scopes.rs:16:78: 16:79
+        StorageDead(_6);                 // scope 0 at $DIR/match-arm-scopes.rs:16:78: 16:79
+        falseEdges -> [real: bb3, imaginary: bb4]; // scope 0 at $DIR/match-arm-scopes.rs:16:42: 16:73
     }
 
     bb18: {
-        StorageLive(_6);                 // bb18[0]: scope 0 at $DIR/match-arm-scopes.rs:16:26: 16:27
-        _6 = &(_2.0: bool);              // bb18[1]: scope 0 at $DIR/match-arm-scopes.rs:16:26: 16:27
-        StorageLive(_8);                 // bb18[2]: scope 0 at $DIR/match-arm-scopes.rs:16:36: 16:37
-        _8 = &(_2.2: std::string::String); // bb18[3]: scope 0 at $DIR/match-arm-scopes.rs:16:36: 16:37
-        _3 = &shallow (_2.0: bool);      // bb18[4]: scope 0 at $DIR/match-arm-scopes.rs:15:11: 15:16
-        _4 = &shallow (_2.1: bool);      // bb18[5]: scope 0 at $DIR/match-arm-scopes.rs:15:11: 15:16
-        StorageLive(_12);                // bb18[6]: scope 0 at $DIR/match-arm-scopes.rs:16:42: 16:73
-        StorageLive(_13);                // bb18[7]: scope 0 at $DIR/match-arm-scopes.rs:16:45: 16:49
-        _13 = _1;                        // bb18[8]: scope 0 at $DIR/match-arm-scopes.rs:16:45: 16:49
-        FakeRead(ForMatchedPlace, _13);  // bb18[9]: scope 0 at $DIR/match-arm-scopes.rs:16:45: 16:49
-        switchInt(_13) -> [false: bb20, otherwise: bb19]; // bb18[10]: scope 0 at $DIR/match-arm-scopes.rs:16:42: 16:73
+        StorageLive(_6);                 // scope 0 at $DIR/match-arm-scopes.rs:16:26: 16:27
+        _6 = &(_2.0: bool);              // scope 0 at $DIR/match-arm-scopes.rs:16:26: 16:27
+        StorageLive(_8);                 // scope 0 at $DIR/match-arm-scopes.rs:16:36: 16:37
+        _8 = &(_2.2: std::string::String); // scope 0 at $DIR/match-arm-scopes.rs:16:36: 16:37
+        _3 = &shallow (_2.0: bool);      // scope 0 at $DIR/match-arm-scopes.rs:15:11: 15:16
+        _4 = &shallow (_2.1: bool);      // scope 0 at $DIR/match-arm-scopes.rs:15:11: 15:16
+        StorageLive(_12);                // scope 0 at $DIR/match-arm-scopes.rs:16:42: 16:73
+        StorageLive(_13);                // scope 0 at $DIR/match-arm-scopes.rs:16:45: 16:49
+        _13 = _1;                        // scope 0 at $DIR/match-arm-scopes.rs:16:45: 16:49
+        FakeRead(ForMatchedPlace, _13);  // scope 0 at $DIR/match-arm-scopes.rs:16:45: 16:49
+        switchInt(_13) -> [false: bb20, otherwise: bb19]; // scope 0 at $DIR/match-arm-scopes.rs:16:42: 16:73
     }
 
     bb19: {
-        falseEdges -> [real: bb21, imaginary: bb20]; // bb19[0]: scope 0 at $DIR/match-arm-scopes.rs:16:42: 16:73
+        falseEdges -> [real: bb21, imaginary: bb20]; // scope 0 at $DIR/match-arm-scopes.rs:16:42: 16:73
     }
 
     bb20: {
-        _12 = (*_6);                     // bb20[0]: scope 0 at $DIR/match-arm-scopes.rs:16:70: 16:71
-        StorageDead(_13);                // bb20[1]: scope 0 at $DIR/match-arm-scopes.rs:16:72: 16:73
-        switchInt(move _12) -> [false: bb23, otherwise: bb22]; // bb20[2]: scope 0 at $DIR/match-arm-scopes.rs:16:42: 16:73
+        _12 = (*_6);                     // scope 0 at $DIR/match-arm-scopes.rs:16:70: 16:71
+        StorageDead(_13);                // scope 0 at $DIR/match-arm-scopes.rs:16:72: 16:73
+        switchInt(move _12) -> [false: bb23, otherwise: bb22]; // scope 0 at $DIR/match-arm-scopes.rs:16:42: 16:73
     }
 
     bb21: {
-        _0 = const 3i32;                 // bb21[0]: scope 0 at $DIR/match-arm-scopes.rs:16:59: 16:60
+        _0 = const 3i32;                 // scope 0 at $DIR/match-arm-scopes.rs:16:59: 16:60
                                          // ty::Const
                                          // + ty: i32
                                          // + val: Value(Scalar(0x00000003))
                                          // mir::Constant
                                          // + span: $DIR/match-arm-scopes.rs:16:59: 16:60
                                          // + literal: Const { ty: i32, val: Value(Scalar(0x00000003)) }
-        StorageDead(_13);                // bb21[1]: scope 0 at $DIR/match-arm-scopes.rs:16:72: 16:73
-        StorageDead(_12);                // bb21[2]: scope 0 at $DIR/match-arm-scopes.rs:16:78: 16:79
-        StorageDead(_8);                 // bb21[3]: scope 0 at $DIR/match-arm-scopes.rs:16:78: 16:79
-        StorageDead(_6);                 // bb21[4]: scope 0 at $DIR/match-arm-scopes.rs:16:78: 16:79
-        goto -> bb15;                    // bb21[5]: scope 0 at $DIR/match-arm-scopes.rs:16:52: 16:60
+        StorageDead(_13);                // scope 0 at $DIR/match-arm-scopes.rs:16:72: 16:73
+        StorageDead(_12);                // scope 0 at $DIR/match-arm-scopes.rs:16:78: 16:79
+        StorageDead(_8);                 // scope 0 at $DIR/match-arm-scopes.rs:16:78: 16:79
+        StorageDead(_6);                 // scope 0 at $DIR/match-arm-scopes.rs:16:78: 16:79
+        goto -> bb15;                    // scope 0 at $DIR/match-arm-scopes.rs:16:52: 16:60
     }
 
     bb22: {
-        StorageDead(_12);                // bb22[0]: scope 0 at $DIR/match-arm-scopes.rs:16:78: 16:79
-        FakeRead(ForMatchGuard, _3);     // bb22[1]: scope 0 at $DIR/match-arm-scopes.rs:16:72: 16:73
-        FakeRead(ForMatchGuard, _4);     // bb22[2]: scope 0 at $DIR/match-arm-scopes.rs:16:72: 16:73
-        FakeRead(ForGuardBinding, _6);   // bb22[3]: scope 0 at $DIR/match-arm-scopes.rs:16:72: 16:73
-        FakeRead(ForGuardBinding, _8);   // bb22[4]: scope 0 at $DIR/match-arm-scopes.rs:16:72: 16:73
-        StorageLive(_5);                 // bb22[5]: scope 0 at $DIR/match-arm-scopes.rs:16:26: 16:27
-        _5 = (_2.0: bool);               // bb22[6]: scope 0 at $DIR/match-arm-scopes.rs:16:26: 16:27
-        StorageLive(_7);                 // bb22[7]: scope 0 at $DIR/match-arm-scopes.rs:16:36: 16:37
-        _7 = move (_2.2: std::string::String); // bb22[8]: scope 0 at $DIR/match-arm-scopes.rs:16:36: 16:37
-        goto -> bb8;                     // bb22[9]: scope 0 at $DIR/match-arm-scopes.rs:15:5: 18:6
+        StorageDead(_12);                // scope 0 at $DIR/match-arm-scopes.rs:16:78: 16:79
+        FakeRead(ForMatchGuard, _3);     // scope 0 at $DIR/match-arm-scopes.rs:16:72: 16:73
+        FakeRead(ForMatchGuard, _4);     // scope 0 at $DIR/match-arm-scopes.rs:16:72: 16:73
+        FakeRead(ForGuardBinding, _6);   // scope 0 at $DIR/match-arm-scopes.rs:16:72: 16:73
+        FakeRead(ForGuardBinding, _8);   // scope 0 at $DIR/match-arm-scopes.rs:16:72: 16:73
+        StorageLive(_5);                 // scope 0 at $DIR/match-arm-scopes.rs:16:26: 16:27
+        _5 = (_2.0: bool);               // scope 0 at $DIR/match-arm-scopes.rs:16:26: 16:27
+        StorageLive(_7);                 // scope 0 at $DIR/match-arm-scopes.rs:16:36: 16:37
+        _7 = move (_2.2: std::string::String); // scope 0 at $DIR/match-arm-scopes.rs:16:36: 16:37
+        goto -> bb8;                     // scope 0 at $DIR/match-arm-scopes.rs:15:5: 18:6
     }
 
     bb23: {
-        StorageDead(_12);                // bb23[0]: scope 0 at $DIR/match-arm-scopes.rs:16:78: 16:79
-        StorageDead(_8);                 // bb23[1]: scope 0 at $DIR/match-arm-scopes.rs:16:78: 16:79
-        StorageDead(_6);                 // bb23[2]: scope 0 at $DIR/match-arm-scopes.rs:16:78: 16:79
-        falseEdges -> [real: bb5, imaginary: bb6]; // bb23[3]: scope 0 at $DIR/match-arm-scopes.rs:16:42: 16:73
+        StorageDead(_12);                // scope 0 at $DIR/match-arm-scopes.rs:16:78: 16:79
+        StorageDead(_8);                 // scope 0 at $DIR/match-arm-scopes.rs:16:78: 16:79
+        StorageDead(_6);                 // scope 0 at $DIR/match-arm-scopes.rs:16:78: 16:79
+        falseEdges -> [real: bb5, imaginary: bb6]; // scope 0 at $DIR/match-arm-scopes.rs:16:42: 16:73
     }
 
     bb24: {
-        StorageDead(_7);                 // bb24[0]: scope 0 at $DIR/match-arm-scopes.rs:16:78: 16:79
-        StorageDead(_5);                 // bb24[1]: scope 0 at $DIR/match-arm-scopes.rs:16:78: 16:79
-        StorageDead(_8);                 // bb24[2]: scope 0 at $DIR/match-arm-scopes.rs:16:78: 16:79
-        StorageDead(_6);                 // bb24[3]: scope 0 at $DIR/match-arm-scopes.rs:16:78: 16:79
-        goto -> bb28;                    // bb24[4]: scope 0 at $DIR/match-arm-scopes.rs:15:5: 18:6
+        StorageDead(_7);                 // scope 0 at $DIR/match-arm-scopes.rs:16:78: 16:79
+        StorageDead(_5);                 // scope 0 at $DIR/match-arm-scopes.rs:16:78: 16:79
+        StorageDead(_8);                 // scope 0 at $DIR/match-arm-scopes.rs:16:78: 16:79
+        StorageDead(_6);                 // scope 0 at $DIR/match-arm-scopes.rs:16:78: 16:79
+        goto -> bb28;                    // scope 0 at $DIR/match-arm-scopes.rs:15:5: 18:6
     }
 
     bb25: {
-        _0 = const 2i32;                 // bb25[0]: scope 2 at $DIR/match-arm-scopes.rs:17:41: 17:42
+        _0 = const 2i32;                 // scope 2 at $DIR/match-arm-scopes.rs:17:41: 17:42
                                          // ty::Const
                                          // + ty: i32
                                          // + val: Value(Scalar(0x00000002))
                                          // mir::Constant
                                          // + span: $DIR/match-arm-scopes.rs:17:41: 17:42
                                          // + literal: Const { ty: i32, val: Value(Scalar(0x00000002)) }
-        drop(_16) -> [return: bb27, unwind: bb14]; // bb25[1]: scope 0 at $DIR/match-arm-scopes.rs:17:42: 17:43
+        drop(_16) -> [return: bb27, unwind: bb14]; // scope 0 at $DIR/match-arm-scopes.rs:17:42: 17:43
     }
 
     bb26: {
-        StorageLive(_15);                // bb26[0]: scope 0 at $DIR/match-arm-scopes.rs:17:16: 17:17
-        _15 = (_2.1: bool);              // bb26[1]: scope 0 at $DIR/match-arm-scopes.rs:17:16: 17:17
-        StorageLive(_16);                // bb26[2]: scope 0 at $DIR/match-arm-scopes.rs:17:19: 17:20
-        _16 = move (_2.2: std::string::String); // bb26[3]: scope 0 at $DIR/match-arm-scopes.rs:17:19: 17:20
-        goto -> bb25;                    // bb26[4]: scope 0 at $DIR/match-arm-scopes.rs:15:5: 18:6
+        StorageLive(_15);                // scope 0 at $DIR/match-arm-scopes.rs:17:16: 17:17
+        _15 = (_2.1: bool);              // scope 0 at $DIR/match-arm-scopes.rs:17:16: 17:17
+        StorageLive(_16);                // scope 0 at $DIR/match-arm-scopes.rs:17:19: 17:20
+        _16 = move (_2.2: std::string::String); // scope 0 at $DIR/match-arm-scopes.rs:17:19: 17:20
+        goto -> bb25;                    // scope 0 at $DIR/match-arm-scopes.rs:15:5: 18:6
     }
 
     bb27: {
-        StorageDead(_16);                // bb27[0]: scope 0 at $DIR/match-arm-scopes.rs:17:42: 17:43
-        StorageDead(_15);                // bb27[1]: scope 0 at $DIR/match-arm-scopes.rs:17:42: 17:43
-        goto -> bb28;                    // bb27[2]: scope 0 at $DIR/match-arm-scopes.rs:15:5: 18:6
+        StorageDead(_16);                // scope 0 at $DIR/match-arm-scopes.rs:17:42: 17:43
+        StorageDead(_15);                // scope 0 at $DIR/match-arm-scopes.rs:17:42: 17:43
+        goto -> bb28;                    // scope 0 at $DIR/match-arm-scopes.rs:15:5: 18:6
     }
 
     bb28: {
-        drop(_2) -> [return: bb13, unwind: bb1]; // bb28[0]: scope 0 at $DIR/match-arm-scopes.rs:19:1: 19:2
+        drop(_2) -> [return: bb13, unwind: bb1]; // scope 0 at $DIR/match-arm-scopes.rs:19:1: 19:2
     }
 }
diff --git a/src/test/mir-opt/match_false_edges/rustc.full_tested_match.PromoteTemps.after.mir b/src/test/mir-opt/match_false_edges/rustc.full_tested_match.PromoteTemps.after.mir
index 0f8b6cc9c84..db888bc4b87 100644
--- a/src/test/mir-opt/match_false_edges/rustc.full_tested_match.PromoteTemps.after.mir
+++ b/src/test/mir-opt/match_false_edges/rustc.full_tested_match.PromoteTemps.after.mir
@@ -24,26 +24,26 @@ fn full_tested_match() -> () {
     }
 
     bb0: {
-        StorageLive(_1);                 // bb0[0]: scope 0 at $DIR/match_false_edges.rs:15:13: 19:6
-        StorageLive(_2);                 // bb0[1]: scope 0 at $DIR/match_false_edges.rs:15:19: 15:27
-        _2 = std::option::Option::<i32>::Some(const 42i32); // bb0[2]: scope 0 at $DIR/match_false_edges.rs:15:19: 15:27
+        StorageLive(_1);                 // scope 0 at $DIR/match_false_edges.rs:15:13: 19:6
+        StorageLive(_2);                 // scope 0 at $DIR/match_false_edges.rs:15:19: 15:27
+        _2 = std::option::Option::<i32>::Some(const 42i32); // scope 0 at $DIR/match_false_edges.rs:15:19: 15:27
                                          // ty::Const
                                          // + ty: i32
                                          // + val: Value(Scalar(0x0000002a))
                                          // mir::Constant
                                          // + span: $DIR/match_false_edges.rs:15:24: 15:26
                                          // + literal: Const { ty: i32, val: Value(Scalar(0x0000002a)) }
-        FakeRead(ForMatchedPlace, _2);   // bb0[3]: scope 0 at $DIR/match_false_edges.rs:15:19: 15:27
-        _3 = discriminant(_2);           // bb0[4]: scope 0 at $DIR/match_false_edges.rs:16:9: 16:16
-        switchInt(move _3) -> [0isize: bb2, 1isize: bb3, otherwise: bb5]; // bb0[5]: scope 0 at $DIR/match_false_edges.rs:16:9: 16:16
+        FakeRead(ForMatchedPlace, _2);   // scope 0 at $DIR/match_false_edges.rs:15:19: 15:27
+        _3 = discriminant(_2);           // scope 0 at $DIR/match_false_edges.rs:16:9: 16:16
+        switchInt(move _3) -> [0isize: bb2, 1isize: bb3, otherwise: bb5]; // scope 0 at $DIR/match_false_edges.rs:16:9: 16:16
     }
 
     bb1 (cleanup): {
-        resume;                          // bb1[0]: scope 0 at $DIR/match_false_edges.rs:14:1: 20:2
+        resume;                          // scope 0 at $DIR/match_false_edges.rs:14:1: 20:2
     }
 
     bb2: {
-        _1 = (const 3i32, const 3i32);   // bb2[0]: scope 0 at $DIR/match_false_edges.rs:18:17: 18:23
+        _1 = (const 3i32, const 3i32);   // scope 0 at $DIR/match_false_edges.rs:18:17: 18:23
                                          // ty::Const
                                          // + ty: i32
                                          // + val: Value(Scalar(0x00000003))
@@ -56,34 +56,34 @@ fn full_tested_match() -> () {
                                          // mir::Constant
                                          // + span: $DIR/match_false_edges.rs:18:21: 18:22
                                          // + literal: Const { ty: i32, val: Value(Scalar(0x00000003)) }
-        goto -> bb11;                    // bb2[1]: scope 0 at $DIR/match_false_edges.rs:15:13: 19:6
+        goto -> bb11;                    // scope 0 at $DIR/match_false_edges.rs:15:13: 19:6
     }
 
     bb3: {
-        falseEdges -> [real: bb6, imaginary: bb4]; // bb3[0]: scope 0 at $DIR/match_false_edges.rs:16:9: 16:16
+        falseEdges -> [real: bb6, imaginary: bb4]; // scope 0 at $DIR/match_false_edges.rs:16:9: 16:16
     }
 
     bb4: {
-        falseEdges -> [real: bb10, imaginary: bb2]; // bb4[0]: scope 0 at $DIR/match_false_edges.rs:17:9: 17:16
+        falseEdges -> [real: bb10, imaginary: bb2]; // scope 0 at $DIR/match_false_edges.rs:17:9: 17:16
     }
 
     bb5: {
-        unreachable;                     // bb5[0]: scope 0 at $DIR/match_false_edges.rs:15:19: 15:27
+        unreachable;                     // scope 0 at $DIR/match_false_edges.rs:15:19: 15:27
     }
 
     bb6: {
-        StorageLive(_6);                 // bb6[0]: scope 0 at $DIR/match_false_edges.rs:16:14: 16:15
-        _11 = const full_tested_match::promoted[0]; // bb6[1]: scope 0 at $DIR/match_false_edges.rs:16:14: 16:15
+        StorageLive(_6);                 // scope 0 at $DIR/match_false_edges.rs:16:14: 16:15
+        _11 = const full_tested_match::promoted[0]; // scope 0 at $DIR/match_false_edges.rs:16:14: 16:15
                                          // ty::Const
                                          // + ty: &std::option::Option<i32>
                                          // + val: Unevaluated(DefId(0:5 ~ match_false_edges[317d]::full_tested_match[0]), [], Some(promoted[0]))
                                          // mir::Constant
                                          // + span: $DIR/match_false_edges.rs:16:14: 16:15
                                          // + literal: Const { ty: &std::option::Option<i32>, val: Unevaluated(DefId(0:5 ~ match_false_edges[317d]::full_tested_match[0]), [], Some(promoted[0])) }
-        _6 = &(((*_11) as Some).0: i32); // bb6[2]: scope 0 at $DIR/match_false_edges.rs:16:14: 16:15
-        _4 = &shallow _2;                // bb6[3]: scope 0 at $DIR/match_false_edges.rs:15:19: 15:27
-        StorageLive(_7);                 // bb6[4]: scope 0 at $DIR/match_false_edges.rs:16:20: 16:27
-        _7 = const guard() -> [return: bb7, unwind: bb1]; // bb6[5]: scope 0 at $DIR/match_false_edges.rs:16:20: 16:27
+        _6 = &(((*_11) as Some).0: i32); // scope 0 at $DIR/match_false_edges.rs:16:14: 16:15
+        _4 = &shallow _2;                // scope 0 at $DIR/match_false_edges.rs:15:19: 15:27
+        StorageLive(_7);                 // scope 0 at $DIR/match_false_edges.rs:16:20: 16:27
+        _7 = const guard() -> [return: bb7, unwind: bb1]; // scope 0 at $DIR/match_false_edges.rs:16:20: 16:27
                                          // ty::Const
                                          // + ty: fn() -> bool {guard}
                                          // + val: Value(Scalar(<ZST>))
@@ -93,63 +93,63 @@ fn full_tested_match() -> () {
     }
 
     bb7: {
-        switchInt(move _7) -> [false: bb9, otherwise: bb8]; // bb7[0]: scope 0 at $DIR/match_false_edges.rs:16:20: 16:27
+        switchInt(move _7) -> [false: bb9, otherwise: bb8]; // scope 0 at $DIR/match_false_edges.rs:16:20: 16:27
     }
 
     bb8: {
-        StorageDead(_7);                 // bb8[0]: scope 0 at $DIR/match_false_edges.rs:16:37: 16:38
-        FakeRead(ForMatchGuard, _4);     // bb8[1]: scope 0 at $DIR/match_false_edges.rs:16:26: 16:27
-        FakeRead(ForGuardBinding, _6);   // bb8[2]: scope 0 at $DIR/match_false_edges.rs:16:26: 16:27
-        StorageLive(_5);                 // bb8[3]: scope 0 at $DIR/match_false_edges.rs:16:14: 16:15
-        _5 = ((_2 as Some).0: i32);      // bb8[4]: scope 0 at $DIR/match_false_edges.rs:16:14: 16:15
-        StorageLive(_8);                 // bb8[5]: scope 2 at $DIR/match_false_edges.rs:16:35: 16:36
-        _8 = _5;                         // bb8[6]: scope 2 at $DIR/match_false_edges.rs:16:35: 16:36
-        _1 = (const 1i32, move _8);      // bb8[7]: scope 2 at $DIR/match_false_edges.rs:16:31: 16:37
+        StorageDead(_7);                 // scope 0 at $DIR/match_false_edges.rs:16:37: 16:38
+        FakeRead(ForMatchGuard, _4);     // scope 0 at $DIR/match_false_edges.rs:16:26: 16:27
+        FakeRead(ForGuardBinding, _6);   // scope 0 at $DIR/match_false_edges.rs:16:26: 16:27
+        StorageLive(_5);                 // scope 0 at $DIR/match_false_edges.rs:16:14: 16:15
+        _5 = ((_2 as Some).0: i32);      // scope 0 at $DIR/match_false_edges.rs:16:14: 16:15
+        StorageLive(_8);                 // scope 2 at $DIR/match_false_edges.rs:16:35: 16:36
+        _8 = _5;                         // scope 2 at $DIR/match_false_edges.rs:16:35: 16:36
+        _1 = (const 1i32, move _8);      // scope 2 at $DIR/match_false_edges.rs:16:31: 16:37
                                          // ty::Const
                                          // + ty: i32
                                          // + val: Value(Scalar(0x00000001))
                                          // mir::Constant
                                          // + span: $DIR/match_false_edges.rs:16:32: 16:33
                                          // + literal: Const { ty: i32, val: Value(Scalar(0x00000001)) }
-        StorageDead(_8);                 // bb8[8]: scope 2 at $DIR/match_false_edges.rs:16:36: 16:37
-        StorageDead(_5);                 // bb8[9]: scope 0 at $DIR/match_false_edges.rs:16:37: 16:38
-        StorageDead(_6);                 // bb8[10]: scope 0 at $DIR/match_false_edges.rs:16:37: 16:38
-        goto -> bb11;                    // bb8[11]: scope 0 at $DIR/match_false_edges.rs:15:13: 19:6
+        StorageDead(_8);                 // scope 2 at $DIR/match_false_edges.rs:16:36: 16:37
+        StorageDead(_5);                 // scope 0 at $DIR/match_false_edges.rs:16:37: 16:38
+        StorageDead(_6);                 // scope 0 at $DIR/match_false_edges.rs:16:37: 16:38
+        goto -> bb11;                    // scope 0 at $DIR/match_false_edges.rs:15:13: 19:6
     }
 
     bb9: {
-        StorageDead(_7);                 // bb9[0]: scope 0 at $DIR/match_false_edges.rs:16:37: 16:38
-        StorageDead(_6);                 // bb9[1]: scope 0 at $DIR/match_false_edges.rs:16:37: 16:38
-        goto -> bb4;                     // bb9[2]: scope 0 at $DIR/match_false_edges.rs:16:20: 16:27
+        StorageDead(_7);                 // scope 0 at $DIR/match_false_edges.rs:16:37: 16:38
+        StorageDead(_6);                 // scope 0 at $DIR/match_false_edges.rs:16:37: 16:38
+        goto -> bb4;                     // scope 0 at $DIR/match_false_edges.rs:16:20: 16:27
     }
 
     bb10: {
-        StorageLive(_9);                 // bb10[0]: scope 0 at $DIR/match_false_edges.rs:17:14: 17:15
-        _9 = ((_2 as Some).0: i32);      // bb10[1]: scope 0 at $DIR/match_false_edges.rs:17:14: 17:15
-        StorageLive(_10);                // bb10[2]: scope 3 at $DIR/match_false_edges.rs:17:24: 17:25
-        _10 = _9;                        // bb10[3]: scope 3 at $DIR/match_false_edges.rs:17:24: 17:25
-        _1 = (const 2i32, move _10);     // bb10[4]: scope 3 at $DIR/match_false_edges.rs:17:20: 17:26
+        StorageLive(_9);                 // scope 0 at $DIR/match_false_edges.rs:17:14: 17:15
+        _9 = ((_2 as Some).0: i32);      // scope 0 at $DIR/match_false_edges.rs:17:14: 17:15
+        StorageLive(_10);                // scope 3 at $DIR/match_false_edges.rs:17:24: 17:25
+        _10 = _9;                        // scope 3 at $DIR/match_false_edges.rs:17:24: 17:25
+        _1 = (const 2i32, move _10);     // scope 3 at $DIR/match_false_edges.rs:17:20: 17:26
                                          // ty::Const
                                          // + ty: i32
                                          // + val: Value(Scalar(0x00000002))
                                          // mir::Constant
                                          // + span: $DIR/match_false_edges.rs:17:21: 17:22
                                          // + literal: Const { ty: i32, val: Value(Scalar(0x00000002)) }
-        StorageDead(_10);                // bb10[5]: scope 3 at $DIR/match_false_edges.rs:17:25: 17:26
-        StorageDead(_9);                 // bb10[6]: scope 0 at $DIR/match_false_edges.rs:17:26: 17:27
-        goto -> bb11;                    // bb10[7]: scope 0 at $DIR/match_false_edges.rs:15:13: 19:6
+        StorageDead(_10);                // scope 3 at $DIR/match_false_edges.rs:17:25: 17:26
+        StorageDead(_9);                 // scope 0 at $DIR/match_false_edges.rs:17:26: 17:27
+        goto -> bb11;                    // scope 0 at $DIR/match_false_edges.rs:15:13: 19:6
     }
 
     bb11: {
-        StorageDead(_2);                 // bb11[0]: scope 0 at $DIR/match_false_edges.rs:19:6: 19:7
-        StorageDead(_1);                 // bb11[1]: scope 0 at $DIR/match_false_edges.rs:19:6: 19:7
-        _0 = const ();                   // bb11[2]: scope 0 at $DIR/match_false_edges.rs:14:28: 20:2
+        StorageDead(_2);                 // scope 0 at $DIR/match_false_edges.rs:19:6: 19:7
+        StorageDead(_1);                 // scope 0 at $DIR/match_false_edges.rs:19:6: 19:7
+        _0 = const ();                   // scope 0 at $DIR/match_false_edges.rs:14:28: 20:2
                                          // ty::Const
                                          // + ty: ()
                                          // + val: Value(Scalar(<ZST>))
                                          // mir::Constant
                                          // + span: $DIR/match_false_edges.rs:14:28: 20:2
                                          // + literal: Const { ty: (), val: Value(Scalar(<ZST>)) }
-        return;                          // bb11[3]: scope 0 at $DIR/match_false_edges.rs:20:2: 20:2
+        return;                          // scope 0 at $DIR/match_false_edges.rs:20:2: 20:2
     }
 }
diff --git a/src/test/mir-opt/match_false_edges/rustc.full_tested_match2.PromoteTemps.before.mir b/src/test/mir-opt/match_false_edges/rustc.full_tested_match2.PromoteTemps.before.mir
index 2cf6c97ae22..96aa9e828d7 100644
--- a/src/test/mir-opt/match_false_edges/rustc.full_tested_match2.PromoteTemps.before.mir
+++ b/src/test/mir-opt/match_false_edges/rustc.full_tested_match2.PromoteTemps.before.mir
@@ -23,59 +23,59 @@ fn full_tested_match2() -> () {
     }
 
     bb0: {
-        StorageLive(_1);                 // bb0[0]: scope 0 at $DIR/match_false_edges.rs:26:13: 30:6
-        StorageLive(_2);                 // bb0[1]: scope 0 at $DIR/match_false_edges.rs:26:19: 26:27
-        _2 = std::option::Option::<i32>::Some(const 42i32); // bb0[2]: scope 0 at $DIR/match_false_edges.rs:26:19: 26:27
+        StorageLive(_1);                 // scope 0 at $DIR/match_false_edges.rs:26:13: 30:6
+        StorageLive(_2);                 // scope 0 at $DIR/match_false_edges.rs:26:19: 26:27
+        _2 = std::option::Option::<i32>::Some(const 42i32); // scope 0 at $DIR/match_false_edges.rs:26:19: 26:27
                                          // ty::Const
                                          // + ty: i32
                                          // + val: Value(Scalar(0x0000002a))
                                          // mir::Constant
                                          // + span: $DIR/match_false_edges.rs:26:24: 26:26
                                          // + literal: Const { ty: i32, val: Value(Scalar(0x0000002a)) }
-        FakeRead(ForMatchedPlace, _2);   // bb0[3]: scope 0 at $DIR/match_false_edges.rs:26:19: 26:27
-        _3 = discriminant(_2);           // bb0[4]: scope 0 at $DIR/match_false_edges.rs:27:9: 27:16
-        switchInt(move _3) -> [0isize: bb2, 1isize: bb3, otherwise: bb5]; // bb0[5]: scope 0 at $DIR/match_false_edges.rs:27:9: 27:16
+        FakeRead(ForMatchedPlace, _2);   // scope 0 at $DIR/match_false_edges.rs:26:19: 26:27
+        _3 = discriminant(_2);           // scope 0 at $DIR/match_false_edges.rs:27:9: 27:16
+        switchInt(move _3) -> [0isize: bb2, 1isize: bb3, otherwise: bb5]; // scope 0 at $DIR/match_false_edges.rs:27:9: 27:16
     }
 
     bb1 (cleanup): {
-        resume;                          // bb1[0]: scope 0 at $DIR/match_false_edges.rs:25:1: 31:2
+        resume;                          // scope 0 at $DIR/match_false_edges.rs:25:1: 31:2
     }
 
     bb2: {
-        falseEdges -> [real: bb10, imaginary: bb4]; // bb2[0]: scope 0 at $DIR/match_false_edges.rs:28:9: 28:13
+        falseEdges -> [real: bb10, imaginary: bb4]; // scope 0 at $DIR/match_false_edges.rs:28:9: 28:13
     }
 
     bb3: {
-        falseEdges -> [real: bb6, imaginary: bb2]; // bb3[0]: scope 0 at $DIR/match_false_edges.rs:27:9: 27:16
+        falseEdges -> [real: bb6, imaginary: bb2]; // scope 0 at $DIR/match_false_edges.rs:27:9: 27:16
     }
 
     bb4: {
-        StorageLive(_9);                 // bb4[0]: scope 0 at $DIR/match_false_edges.rs:29:14: 29:15
-        _9 = ((_2 as Some).0: i32);      // bb4[1]: scope 0 at $DIR/match_false_edges.rs:29:14: 29:15
-        StorageLive(_10);                // bb4[2]: scope 3 at $DIR/match_false_edges.rs:29:24: 29:25
-        _10 = _9;                        // bb4[3]: scope 3 at $DIR/match_false_edges.rs:29:24: 29:25
-        _1 = (const 2i32, move _10);     // bb4[4]: scope 3 at $DIR/match_false_edges.rs:29:20: 29:26
+        StorageLive(_9);                 // scope 0 at $DIR/match_false_edges.rs:29:14: 29:15
+        _9 = ((_2 as Some).0: i32);      // scope 0 at $DIR/match_false_edges.rs:29:14: 29:15
+        StorageLive(_10);                // scope 3 at $DIR/match_false_edges.rs:29:24: 29:25
+        _10 = _9;                        // scope 3 at $DIR/match_false_edges.rs:29:24: 29:25
+        _1 = (const 2i32, move _10);     // scope 3 at $DIR/match_false_edges.rs:29:20: 29:26
                                          // ty::Const
                                          // + ty: i32
                                          // + val: Value(Scalar(0x00000002))
                                          // mir::Constant
                                          // + span: $DIR/match_false_edges.rs:29:21: 29:22
                                          // + literal: Const { ty: i32, val: Value(Scalar(0x00000002)) }
-        StorageDead(_10);                // bb4[5]: scope 3 at $DIR/match_false_edges.rs:29:25: 29:26
-        StorageDead(_9);                 // bb4[6]: scope 0 at $DIR/match_false_edges.rs:29:26: 29:27
-        goto -> bb11;                    // bb4[7]: scope 0 at $DIR/match_false_edges.rs:26:13: 30:6
+        StorageDead(_10);                // scope 3 at $DIR/match_false_edges.rs:29:25: 29:26
+        StorageDead(_9);                 // scope 0 at $DIR/match_false_edges.rs:29:26: 29:27
+        goto -> bb11;                    // scope 0 at $DIR/match_false_edges.rs:26:13: 30:6
     }
 
     bb5: {
-        unreachable;                     // bb5[0]: scope 0 at $DIR/match_false_edges.rs:26:19: 26:27
+        unreachable;                     // scope 0 at $DIR/match_false_edges.rs:26:19: 26:27
     }
 
     bb6: {
-        StorageLive(_6);                 // bb6[0]: scope 0 at $DIR/match_false_edges.rs:27:14: 27:15
-        _6 = &((_2 as Some).0: i32);     // bb6[1]: scope 0 at $DIR/match_false_edges.rs:27:14: 27:15
-        _4 = &shallow _2;                // bb6[2]: scope 0 at $DIR/match_false_edges.rs:26:19: 26:27
-        StorageLive(_7);                 // bb6[3]: scope 0 at $DIR/match_false_edges.rs:27:20: 27:27
-        _7 = const guard() -> [return: bb7, unwind: bb1]; // bb6[4]: scope 0 at $DIR/match_false_edges.rs:27:20: 27:27
+        StorageLive(_6);                 // scope 0 at $DIR/match_false_edges.rs:27:14: 27:15
+        _6 = &((_2 as Some).0: i32);     // scope 0 at $DIR/match_false_edges.rs:27:14: 27:15
+        _4 = &shallow _2;                // scope 0 at $DIR/match_false_edges.rs:26:19: 26:27
+        StorageLive(_7);                 // scope 0 at $DIR/match_false_edges.rs:27:20: 27:27
+        _7 = const guard() -> [return: bb7, unwind: bb1]; // scope 0 at $DIR/match_false_edges.rs:27:20: 27:27
                                          // ty::Const
                                          // + ty: fn() -> bool {guard}
                                          // + val: Value(Scalar(<ZST>))
@@ -85,38 +85,38 @@ fn full_tested_match2() -> () {
     }
 
     bb7: {
-        switchInt(move _7) -> [false: bb9, otherwise: bb8]; // bb7[0]: scope 0 at $DIR/match_false_edges.rs:27:20: 27:27
+        switchInt(move _7) -> [false: bb9, otherwise: bb8]; // scope 0 at $DIR/match_false_edges.rs:27:20: 27:27
     }
 
     bb8: {
-        StorageDead(_7);                 // bb8[0]: scope 0 at $DIR/match_false_edges.rs:27:37: 27:38
-        FakeRead(ForMatchGuard, _4);     // bb8[1]: scope 0 at $DIR/match_false_edges.rs:27:26: 27:27
-        FakeRead(ForGuardBinding, _6);   // bb8[2]: scope 0 at $DIR/match_false_edges.rs:27:26: 27:27
-        StorageLive(_5);                 // bb8[3]: scope 0 at $DIR/match_false_edges.rs:27:14: 27:15
-        _5 = ((_2 as Some).0: i32);      // bb8[4]: scope 0 at $DIR/match_false_edges.rs:27:14: 27:15
-        StorageLive(_8);                 // bb8[5]: scope 2 at $DIR/match_false_edges.rs:27:35: 27:36
-        _8 = _5;                         // bb8[6]: scope 2 at $DIR/match_false_edges.rs:27:35: 27:36
-        _1 = (const 1i32, move _8);      // bb8[7]: scope 2 at $DIR/match_false_edges.rs:27:31: 27:37
+        StorageDead(_7);                 // scope 0 at $DIR/match_false_edges.rs:27:37: 27:38
+        FakeRead(ForMatchGuard, _4);     // scope 0 at $DIR/match_false_edges.rs:27:26: 27:27
+        FakeRead(ForGuardBinding, _6);   // scope 0 at $DIR/match_false_edges.rs:27:26: 27:27
+        StorageLive(_5);                 // scope 0 at $DIR/match_false_edges.rs:27:14: 27:15
+        _5 = ((_2 as Some).0: i32);      // scope 0 at $DIR/match_false_edges.rs:27:14: 27:15
+        StorageLive(_8);                 // scope 2 at $DIR/match_false_edges.rs:27:35: 27:36
+        _8 = _5;                         // scope 2 at $DIR/match_false_edges.rs:27:35: 27:36
+        _1 = (const 1i32, move _8);      // scope 2 at $DIR/match_false_edges.rs:27:31: 27:37
                                          // ty::Const
                                          // + ty: i32
                                          // + val: Value(Scalar(0x00000001))
                                          // mir::Constant
                                          // + span: $DIR/match_false_edges.rs:27:32: 27:33
                                          // + literal: Const { ty: i32, val: Value(Scalar(0x00000001)) }
-        StorageDead(_8);                 // bb8[8]: scope 2 at $DIR/match_false_edges.rs:27:36: 27:37
-        StorageDead(_5);                 // bb8[9]: scope 0 at $DIR/match_false_edges.rs:27:37: 27:38
-        StorageDead(_6);                 // bb8[10]: scope 0 at $DIR/match_false_edges.rs:27:37: 27:38
-        goto -> bb11;                    // bb8[11]: scope 0 at $DIR/match_false_edges.rs:26:13: 30:6
+        StorageDead(_8);                 // scope 2 at $DIR/match_false_edges.rs:27:36: 27:37
+        StorageDead(_5);                 // scope 0 at $DIR/match_false_edges.rs:27:37: 27:38
+        StorageDead(_6);                 // scope 0 at $DIR/match_false_edges.rs:27:37: 27:38
+        goto -> bb11;                    // scope 0 at $DIR/match_false_edges.rs:26:13: 30:6
     }
 
     bb9: {
-        StorageDead(_7);                 // bb9[0]: scope 0 at $DIR/match_false_edges.rs:27:37: 27:38
-        StorageDead(_6);                 // bb9[1]: scope 0 at $DIR/match_false_edges.rs:27:37: 27:38
-        falseEdges -> [real: bb4, imaginary: bb2]; // bb9[2]: scope 0 at $DIR/match_false_edges.rs:27:20: 27:27
+        StorageDead(_7);                 // scope 0 at $DIR/match_false_edges.rs:27:37: 27:38
+        StorageDead(_6);                 // scope 0 at $DIR/match_false_edges.rs:27:37: 27:38
+        falseEdges -> [real: bb4, imaginary: bb2]; // scope 0 at $DIR/match_false_edges.rs:27:20: 27:27
     }
 
     bb10: {
-        _1 = (const 3i32, const 3i32);   // bb10[0]: scope 0 at $DIR/match_false_edges.rs:28:17: 28:23
+        _1 = (const 3i32, const 3i32);   // scope 0 at $DIR/match_false_edges.rs:28:17: 28:23
                                          // ty::Const
                                          // + ty: i32
                                          // + val: Value(Scalar(0x00000003))
@@ -129,19 +129,19 @@ fn full_tested_match2() -> () {
                                          // mir::Constant
                                          // + span: $DIR/match_false_edges.rs:28:21: 28:22
                                          // + literal: Const { ty: i32, val: Value(Scalar(0x00000003)) }
-        goto -> bb11;                    // bb10[1]: scope 0 at $DIR/match_false_edges.rs:26:13: 30:6
+        goto -> bb11;                    // scope 0 at $DIR/match_false_edges.rs:26:13: 30:6
     }
 
     bb11: {
-        StorageDead(_2);                 // bb11[0]: scope 0 at $DIR/match_false_edges.rs:30:6: 30:7
-        StorageDead(_1);                 // bb11[1]: scope 0 at $DIR/match_false_edges.rs:30:6: 30:7
-        _0 = const ();                   // bb11[2]: scope 0 at $DIR/match_false_edges.rs:25:29: 31:2
+        StorageDead(_2);                 // scope 0 at $DIR/match_false_edges.rs:30:6: 30:7
+        StorageDead(_1);                 // scope 0 at $DIR/match_false_edges.rs:30:6: 30:7
+        _0 = const ();                   // scope 0 at $DIR/match_false_edges.rs:25:29: 31:2
                                          // ty::Const
                                          // + ty: ()
                                          // + val: Value(Scalar(<ZST>))
                                          // mir::Constant
                                          // + span: $DIR/match_false_edges.rs:25:29: 31:2
                                          // + literal: Const { ty: (), val: Value(Scalar(<ZST>)) }
-        return;                          // bb11[3]: scope 0 at $DIR/match_false_edges.rs:31:2: 31:2
+        return;                          // scope 0 at $DIR/match_false_edges.rs:31:2: 31:2
     }
 }
diff --git a/src/test/mir-opt/match_false_edges/rustc.main.PromoteTemps.before.mir b/src/test/mir-opt/match_false_edges/rustc.main.PromoteTemps.before.mir
index 7bba0b20d8e..63a7c4bc43d 100644
--- a/src/test/mir-opt/match_false_edges/rustc.main.PromoteTemps.before.mir
+++ b/src/test/mir-opt/match_false_edges/rustc.main.PromoteTemps.before.mir
@@ -34,56 +34,56 @@ fn main() -> () {
     }
 
     bb0: {
-        StorageLive(_1);                 // bb0[0]: scope 0 at $DIR/match_false_edges.rs:35:13: 40:6
-        StorageLive(_2);                 // bb0[1]: scope 0 at $DIR/match_false_edges.rs:35:19: 35:26
-        _2 = std::option::Option::<i32>::Some(const 1i32); // bb0[2]: scope 0 at $DIR/match_false_edges.rs:35:19: 35:26
+        StorageLive(_1);                 // scope 0 at $DIR/match_false_edges.rs:35:13: 40:6
+        StorageLive(_2);                 // scope 0 at $DIR/match_false_edges.rs:35:19: 35:26
+        _2 = std::option::Option::<i32>::Some(const 1i32); // scope 0 at $DIR/match_false_edges.rs:35:19: 35:26
                                          // ty::Const
                                          // + ty: i32
                                          // + val: Value(Scalar(0x00000001))
                                          // mir::Constant
                                          // + span: $DIR/match_false_edges.rs:35:24: 35:25
                                          // + literal: Const { ty: i32, val: Value(Scalar(0x00000001)) }
-        FakeRead(ForMatchedPlace, _2);   // bb0[3]: scope 0 at $DIR/match_false_edges.rs:35:19: 35:26
-        _4 = discriminant(_2);           // bb0[4]: scope 0 at $DIR/match_false_edges.rs:36:9: 36:17
-        switchInt(move _4) -> [1isize: bb3, otherwise: bb2]; // bb0[5]: scope 0 at $DIR/match_false_edges.rs:36:9: 36:17
+        FakeRead(ForMatchedPlace, _2);   // scope 0 at $DIR/match_false_edges.rs:35:19: 35:26
+        _4 = discriminant(_2);           // scope 0 at $DIR/match_false_edges.rs:36:9: 36:17
+        switchInt(move _4) -> [1isize: bb3, otherwise: bb2]; // scope 0 at $DIR/match_false_edges.rs:36:9: 36:17
     }
 
     bb1 (cleanup): {
-        resume;                          // bb1[0]: scope 0 at $DIR/match_false_edges.rs:34:1: 41:2
+        resume;                          // scope 0 at $DIR/match_false_edges.rs:34:1: 41:2
     }
 
     bb2: {
-        falseEdges -> [real: bb10, imaginary: bb5]; // bb2[0]: scope 0 at $DIR/match_false_edges.rs:37:9: 37:11
+        falseEdges -> [real: bb10, imaginary: bb5]; // scope 0 at $DIR/match_false_edges.rs:37:9: 37:11
     }
 
     bb3: {
-        falseEdges -> [real: bb6, imaginary: bb2]; // bb3[0]: scope 0 at $DIR/match_false_edges.rs:36:9: 36:17
+        falseEdges -> [real: bb6, imaginary: bb2]; // scope 0 at $DIR/match_false_edges.rs:36:9: 36:17
     }
 
     bb4: {
-        StorageLive(_14);                // bb4[0]: scope 0 at $DIR/match_false_edges.rs:39:9: 39:11
-        _14 = _2;                        // bb4[1]: scope 0 at $DIR/match_false_edges.rs:39:9: 39:11
-        _1 = const 4i32;                 // bb4[2]: scope 5 at $DIR/match_false_edges.rs:39:15: 39:16
+        StorageLive(_14);                // scope 0 at $DIR/match_false_edges.rs:39:9: 39:11
+        _14 = _2;                        // scope 0 at $DIR/match_false_edges.rs:39:9: 39:11
+        _1 = const 4i32;                 // scope 5 at $DIR/match_false_edges.rs:39:15: 39:16
                                          // ty::Const
                                          // + ty: i32
                                          // + val: Value(Scalar(0x00000004))
                                          // mir::Constant
                                          // + span: $DIR/match_false_edges.rs:39:15: 39:16
                                          // + literal: Const { ty: i32, val: Value(Scalar(0x00000004)) }
-        StorageDead(_14);                // bb4[3]: scope 0 at $DIR/match_false_edges.rs:39:16: 39:17
-        goto -> bb15;                    // bb4[4]: scope 0 at $DIR/match_false_edges.rs:35:13: 40:6
+        StorageDead(_14);                // scope 0 at $DIR/match_false_edges.rs:39:16: 39:17
+        goto -> bb15;                    // scope 0 at $DIR/match_false_edges.rs:35:13: 40:6
     }
 
     bb5: {
-        falseEdges -> [real: bb11, imaginary: bb4]; // bb5[0]: scope 0 at $DIR/match_false_edges.rs:38:9: 38:16
+        falseEdges -> [real: bb11, imaginary: bb4]; // scope 0 at $DIR/match_false_edges.rs:38:9: 38:16
     }
 
     bb6: {
-        StorageLive(_7);                 // bb6[0]: scope 0 at $DIR/match_false_edges.rs:36:14: 36:16
-        _7 = &((_2 as Some).0: i32);     // bb6[1]: scope 0 at $DIR/match_false_edges.rs:36:14: 36:16
-        _5 = &shallow _2;                // bb6[2]: scope 0 at $DIR/match_false_edges.rs:35:19: 35:26
-        StorageLive(_8);                 // bb6[3]: scope 0 at $DIR/match_false_edges.rs:36:21: 36:28
-        _8 = const guard() -> [return: bb7, unwind: bb1]; // bb6[4]: scope 0 at $DIR/match_false_edges.rs:36:21: 36:28
+        StorageLive(_7);                 // scope 0 at $DIR/match_false_edges.rs:36:14: 36:16
+        _7 = &((_2 as Some).0: i32);     // scope 0 at $DIR/match_false_edges.rs:36:14: 36:16
+        _5 = &shallow _2;                // scope 0 at $DIR/match_false_edges.rs:35:19: 35:26
+        StorageLive(_8);                 // scope 0 at $DIR/match_false_edges.rs:36:21: 36:28
+        _8 = const guard() -> [return: bb7, unwind: bb1]; // scope 0 at $DIR/match_false_edges.rs:36:21: 36:28
                                          // ty::Const
                                          // + ty: fn() -> bool {guard}
                                          // + val: Value(Scalar(<ZST>))
@@ -93,55 +93,55 @@ fn main() -> () {
     }
 
     bb7: {
-        switchInt(move _8) -> [false: bb9, otherwise: bb8]; // bb7[0]: scope 0 at $DIR/match_false_edges.rs:36:21: 36:28
+        switchInt(move _8) -> [false: bb9, otherwise: bb8]; // scope 0 at $DIR/match_false_edges.rs:36:21: 36:28
     }
 
     bb8: {
-        StorageDead(_8);                 // bb8[0]: scope 0 at $DIR/match_false_edges.rs:36:33: 36:34
-        FakeRead(ForMatchGuard, _5);     // bb8[1]: scope 0 at $DIR/match_false_edges.rs:36:27: 36:28
-        FakeRead(ForGuardBinding, _7);   // bb8[2]: scope 0 at $DIR/match_false_edges.rs:36:27: 36:28
-        StorageLive(_6);                 // bb8[3]: scope 0 at $DIR/match_false_edges.rs:36:14: 36:16
-        _6 = ((_2 as Some).0: i32);      // bb8[4]: scope 0 at $DIR/match_false_edges.rs:36:14: 36:16
-        _1 = const 1i32;                 // bb8[5]: scope 2 at $DIR/match_false_edges.rs:36:32: 36:33
+        StorageDead(_8);                 // scope 0 at $DIR/match_false_edges.rs:36:33: 36:34
+        FakeRead(ForMatchGuard, _5);     // scope 0 at $DIR/match_false_edges.rs:36:27: 36:28
+        FakeRead(ForGuardBinding, _7);   // scope 0 at $DIR/match_false_edges.rs:36:27: 36:28
+        StorageLive(_6);                 // scope 0 at $DIR/match_false_edges.rs:36:14: 36:16
+        _6 = ((_2 as Some).0: i32);      // scope 0 at $DIR/match_false_edges.rs:36:14: 36:16
+        _1 = const 1i32;                 // scope 2 at $DIR/match_false_edges.rs:36:32: 36:33
                                          // ty::Const
                                          // + ty: i32
                                          // + val: Value(Scalar(0x00000001))
                                          // mir::Constant
                                          // + span: $DIR/match_false_edges.rs:36:32: 36:33
                                          // + literal: Const { ty: i32, val: Value(Scalar(0x00000001)) }
-        StorageDead(_6);                 // bb8[6]: scope 0 at $DIR/match_false_edges.rs:36:33: 36:34
-        StorageDead(_7);                 // bb8[7]: scope 0 at $DIR/match_false_edges.rs:36:33: 36:34
-        goto -> bb15;                    // bb8[8]: scope 0 at $DIR/match_false_edges.rs:35:13: 40:6
+        StorageDead(_6);                 // scope 0 at $DIR/match_false_edges.rs:36:33: 36:34
+        StorageDead(_7);                 // scope 0 at $DIR/match_false_edges.rs:36:33: 36:34
+        goto -> bb15;                    // scope 0 at $DIR/match_false_edges.rs:35:13: 40:6
     }
 
     bb9: {
-        StorageDead(_8);                 // bb9[0]: scope 0 at $DIR/match_false_edges.rs:36:33: 36:34
-        StorageDead(_7);                 // bb9[1]: scope 0 at $DIR/match_false_edges.rs:36:33: 36:34
-        falseEdges -> [real: bb2, imaginary: bb2]; // bb9[2]: scope 0 at $DIR/match_false_edges.rs:36:21: 36:28
+        StorageDead(_8);                 // scope 0 at $DIR/match_false_edges.rs:36:33: 36:34
+        StorageDead(_7);                 // scope 0 at $DIR/match_false_edges.rs:36:33: 36:34
+        falseEdges -> [real: bb2, imaginary: bb2]; // scope 0 at $DIR/match_false_edges.rs:36:21: 36:28
     }
 
     bb10: {
-        StorageLive(_9);                 // bb10[0]: scope 0 at $DIR/match_false_edges.rs:37:9: 37:11
-        _9 = _2;                         // bb10[1]: scope 0 at $DIR/match_false_edges.rs:37:9: 37:11
-        _1 = const 2i32;                 // bb10[2]: scope 3 at $DIR/match_false_edges.rs:37:15: 37:16
+        StorageLive(_9);                 // scope 0 at $DIR/match_false_edges.rs:37:9: 37:11
+        _9 = _2;                         // scope 0 at $DIR/match_false_edges.rs:37:9: 37:11
+        _1 = const 2i32;                 // scope 3 at $DIR/match_false_edges.rs:37:15: 37:16
                                          // ty::Const
                                          // + ty: i32
                                          // + val: Value(Scalar(0x00000002))
                                          // mir::Constant
                                          // + span: $DIR/match_false_edges.rs:37:15: 37:16
                                          // + literal: Const { ty: i32, val: Value(Scalar(0x00000002)) }
-        StorageDead(_9);                 // bb10[3]: scope 0 at $DIR/match_false_edges.rs:37:16: 37:17
-        goto -> bb15;                    // bb10[4]: scope 0 at $DIR/match_false_edges.rs:35:13: 40:6
+        StorageDead(_9);                 // scope 0 at $DIR/match_false_edges.rs:37:16: 37:17
+        goto -> bb15;                    // scope 0 at $DIR/match_false_edges.rs:35:13: 40:6
     }
 
     bb11: {
-        StorageLive(_11);                // bb11[0]: scope 0 at $DIR/match_false_edges.rs:38:14: 38:15
-        _11 = &((_2 as Some).0: i32);    // bb11[1]: scope 0 at $DIR/match_false_edges.rs:38:14: 38:15
-        _5 = &shallow _2;                // bb11[2]: scope 0 at $DIR/match_false_edges.rs:35:19: 35:26
-        StorageLive(_12);                // bb11[3]: scope 0 at $DIR/match_false_edges.rs:38:20: 38:29
-        StorageLive(_13);                // bb11[4]: scope 0 at $DIR/match_false_edges.rs:38:27: 38:28
-        _13 = (*_11);                    // bb11[5]: scope 0 at $DIR/match_false_edges.rs:38:27: 38:28
-        _12 = const guard2(move _13) -> [return: bb12, unwind: bb1]; // bb11[6]: scope 0 at $DIR/match_false_edges.rs:38:20: 38:29
+        StorageLive(_11);                // scope 0 at $DIR/match_false_edges.rs:38:14: 38:15
+        _11 = &((_2 as Some).0: i32);    // scope 0 at $DIR/match_false_edges.rs:38:14: 38:15
+        _5 = &shallow _2;                // scope 0 at $DIR/match_false_edges.rs:35:19: 35:26
+        StorageLive(_12);                // scope 0 at $DIR/match_false_edges.rs:38:20: 38:29
+        StorageLive(_13);                // scope 0 at $DIR/match_false_edges.rs:38:27: 38:28
+        _13 = (*_11);                    // scope 0 at $DIR/match_false_edges.rs:38:27: 38:28
+        _12 = const guard2(move _13) -> [return: bb12, unwind: bb1]; // scope 0 at $DIR/match_false_edges.rs:38:20: 38:29
                                          // ty::Const
                                          // + ty: fn(i32) -> bool {guard2}
                                          // + val: Value(Scalar(<ZST>))
@@ -151,44 +151,44 @@ fn main() -> () {
     }
 
     bb12: {
-        StorageDead(_13);                // bb12[0]: scope 0 at $DIR/match_false_edges.rs:38:28: 38:29
-        switchInt(move _12) -> [false: bb14, otherwise: bb13]; // bb12[1]: scope 0 at $DIR/match_false_edges.rs:38:20: 38:29
+        StorageDead(_13);                // scope 0 at $DIR/match_false_edges.rs:38:28: 38:29
+        switchInt(move _12) -> [false: bb14, otherwise: bb13]; // scope 0 at $DIR/match_false_edges.rs:38:20: 38:29
     }
 
     bb13: {
-        StorageDead(_12);                // bb13[0]: scope 0 at $DIR/match_false_edges.rs:38:34: 38:35
-        FakeRead(ForMatchGuard, _5);     // bb13[1]: scope 0 at $DIR/match_false_edges.rs:38:28: 38:29
-        FakeRead(ForGuardBinding, _11);  // bb13[2]: scope 0 at $DIR/match_false_edges.rs:38:28: 38:29
-        StorageLive(_10);                // bb13[3]: scope 0 at $DIR/match_false_edges.rs:38:14: 38:15
-        _10 = ((_2 as Some).0: i32);     // bb13[4]: scope 0 at $DIR/match_false_edges.rs:38:14: 38:15
-        _1 = const 3i32;                 // bb13[5]: scope 4 at $DIR/match_false_edges.rs:38:33: 38:34
+        StorageDead(_12);                // scope 0 at $DIR/match_false_edges.rs:38:34: 38:35
+        FakeRead(ForMatchGuard, _5);     // scope 0 at $DIR/match_false_edges.rs:38:28: 38:29
+        FakeRead(ForGuardBinding, _11);  // scope 0 at $DIR/match_false_edges.rs:38:28: 38:29
+        StorageLive(_10);                // scope 0 at $DIR/match_false_edges.rs:38:14: 38:15
+        _10 = ((_2 as Some).0: i32);     // scope 0 at $DIR/match_false_edges.rs:38:14: 38:15
+        _1 = const 3i32;                 // scope 4 at $DIR/match_false_edges.rs:38:33: 38:34
                                          // ty::Const
                                          // + ty: i32
                                          // + val: Value(Scalar(0x00000003))
                                          // mir::Constant
                                          // + span: $DIR/match_false_edges.rs:38:33: 38:34
                                          // + literal: Const { ty: i32, val: Value(Scalar(0x00000003)) }
-        StorageDead(_10);                // bb13[6]: scope 0 at $DIR/match_false_edges.rs:38:34: 38:35
-        StorageDead(_11);                // bb13[7]: scope 0 at $DIR/match_false_edges.rs:38:34: 38:35
-        goto -> bb15;                    // bb13[8]: scope 0 at $DIR/match_false_edges.rs:35:13: 40:6
+        StorageDead(_10);                // scope 0 at $DIR/match_false_edges.rs:38:34: 38:35
+        StorageDead(_11);                // scope 0 at $DIR/match_false_edges.rs:38:34: 38:35
+        goto -> bb15;                    // scope 0 at $DIR/match_false_edges.rs:35:13: 40:6
     }
 
     bb14: {
-        StorageDead(_12);                // bb14[0]: scope 0 at $DIR/match_false_edges.rs:38:34: 38:35
-        StorageDead(_11);                // bb14[1]: scope 0 at $DIR/match_false_edges.rs:38:34: 38:35
-        falseEdges -> [real: bb4, imaginary: bb4]; // bb14[2]: scope 0 at $DIR/match_false_edges.rs:38:20: 38:29
+        StorageDead(_12);                // scope 0 at $DIR/match_false_edges.rs:38:34: 38:35
+        StorageDead(_11);                // scope 0 at $DIR/match_false_edges.rs:38:34: 38:35
+        falseEdges -> [real: bb4, imaginary: bb4]; // scope 0 at $DIR/match_false_edges.rs:38:20: 38:29
     }
 
     bb15: {
-        StorageDead(_2);                 // bb15[0]: scope 0 at $DIR/match_false_edges.rs:40:6: 40:7
-        StorageDead(_1);                 // bb15[1]: scope 0 at $DIR/match_false_edges.rs:40:6: 40:7
-        _0 = const ();                   // bb15[2]: scope 0 at $DIR/match_false_edges.rs:34:11: 41:2
+        StorageDead(_2);                 // scope 0 at $DIR/match_false_edges.rs:40:6: 40:7
+        StorageDead(_1);                 // scope 0 at $DIR/match_false_edges.rs:40:6: 40:7
+        _0 = const ();                   // scope 0 at $DIR/match_false_edges.rs:34:11: 41:2
                                          // ty::Const
                                          // + ty: ()
                                          // + val: Value(Scalar(<ZST>))
                                          // mir::Constant
                                          // + span: $DIR/match_false_edges.rs:34:11: 41:2
                                          // + literal: Const { ty: (), val: Value(Scalar(<ZST>)) }
-        return;                          // bb15[3]: scope 0 at $DIR/match_false_edges.rs:41:2: 41:2
+        return;                          // scope 0 at $DIR/match_false_edges.rs:41:2: 41:2
     }
 }
diff --git a/src/test/mir-opt/match_test/rustc.main.SimplifyCfg-initial.after.mir b/src/test/mir-opt/match_test/rustc.main.SimplifyCfg-initial.after.mir
index 3236b3bcc73..9408248b25d 100644
--- a/src/test/mir-opt/match_test/rustc.main.SimplifyCfg-initial.after.mir
+++ b/src/test/mir-opt/match_test/rustc.main.SimplifyCfg-initial.after.mir
@@ -19,154 +19,154 @@ fn main() -> () {
     }
 
     bb0: {
-        StorageLive(_1);                 // bb0[0]: scope 0 at $DIR/match_test.rs:7:9: 7:10
-        _1 = const 3i32;                 // bb0[1]: scope 0 at $DIR/match_test.rs:7:13: 7:14
+        StorageLive(_1);                 // scope 0 at $DIR/match_test.rs:7:9: 7:10
+        _1 = const 3i32;                 // scope 0 at $DIR/match_test.rs:7:13: 7:14
                                          // ty::Const
                                          // + ty: i32
                                          // + val: Value(Scalar(0x00000003))
                                          // mir::Constant
                                          // + span: $DIR/match_test.rs:7:13: 7:14
                                          // + literal: Const { ty: i32, val: Value(Scalar(0x00000003)) }
-        FakeRead(ForLet, _1);            // bb0[2]: scope 0 at $DIR/match_test.rs:7:9: 7:10
-        StorageLive(_2);                 // bb0[3]: scope 1 at $DIR/match_test.rs:8:9: 8:10
-        _2 = const true;                 // bb0[4]: scope 1 at $DIR/match_test.rs:8:13: 8:17
+        FakeRead(ForLet, _1);            // scope 0 at $DIR/match_test.rs:7:9: 7:10
+        StorageLive(_2);                 // scope 1 at $DIR/match_test.rs:8:9: 8:10
+        _2 = const true;                 // scope 1 at $DIR/match_test.rs:8:13: 8:17
                                          // ty::Const
                                          // + ty: bool
                                          // + val: Value(Scalar(0x01))
                                          // mir::Constant
                                          // + span: $DIR/match_test.rs:8:13: 8:17
                                          // + literal: Const { ty: bool, val: Value(Scalar(0x01)) }
-        FakeRead(ForLet, _2);            // bb0[5]: scope 1 at $DIR/match_test.rs:8:9: 8:10
-        StorageLive(_3);                 // bb0[6]: scope 2 at $DIR/match_test.rs:12:5: 17:6
-        FakeRead(ForMatchedPlace, _1);   // bb0[7]: scope 2 at $DIR/match_test.rs:12:11: 12:12
-        _6 = Le(const 0i32, _1);         // bb0[8]: scope 2 at $DIR/match_test.rs:13:9: 13:14
+        FakeRead(ForLet, _2);            // scope 1 at $DIR/match_test.rs:8:9: 8:10
+        StorageLive(_3);                 // scope 2 at $DIR/match_test.rs:12:5: 17:6
+        FakeRead(ForMatchedPlace, _1);   // scope 2 at $DIR/match_test.rs:12:11: 12:12
+        _6 = Le(const 0i32, _1);         // scope 2 at $DIR/match_test.rs:13:9: 13:14
                                          // ty::Const
                                          // + ty: i32
                                          // + val: Value(Scalar(0x00000000))
                                          // mir::Constant
                                          // + span: $DIR/match_test.rs:13:9: 13:14
                                          // + literal: Const { ty: i32, val: Value(Scalar(0x00000000)) }
-        switchInt(move _6) -> [false: bb4, otherwise: bb1]; // bb0[9]: scope 2 at $DIR/match_test.rs:13:9: 13:14
+        switchInt(move _6) -> [false: bb4, otherwise: bb1]; // scope 2 at $DIR/match_test.rs:13:9: 13:14
     }
 
     bb1: {
-        _7 = Lt(_1, const 10i32);        // bb1[0]: scope 2 at $DIR/match_test.rs:13:9: 13:14
+        _7 = Lt(_1, const 10i32);        // scope 2 at $DIR/match_test.rs:13:9: 13:14
                                          // ty::Const
                                          // + ty: i32
                                          // + val: Value(Scalar(0x0000000a))
                                          // mir::Constant
                                          // + span: $DIR/match_test.rs:13:9: 13:14
                                          // + literal: Const { ty: i32, val: Value(Scalar(0x0000000a)) }
-        switchInt(move _7) -> [false: bb4, otherwise: bb2]; // bb1[1]: scope 2 at $DIR/match_test.rs:13:9: 13:14
+        switchInt(move _7) -> [false: bb4, otherwise: bb2]; // scope 2 at $DIR/match_test.rs:13:9: 13:14
     }
 
     bb2: {
-        falseEdges -> [real: bb9, imaginary: bb6]; // bb2[0]: scope 2 at $DIR/match_test.rs:13:9: 13:14
+        falseEdges -> [real: bb9, imaginary: bb6]; // scope 2 at $DIR/match_test.rs:13:9: 13:14
     }
 
     bb3: {
-        _3 = const 3i32;                 // bb3[0]: scope 2 at $DIR/match_test.rs:16:14: 16:15
+        _3 = const 3i32;                 // scope 2 at $DIR/match_test.rs:16:14: 16:15
                                          // ty::Const
                                          // + ty: i32
                                          // + val: Value(Scalar(0x00000003))
                                          // mir::Constant
                                          // + span: $DIR/match_test.rs:16:14: 16:15
                                          // + literal: Const { ty: i32, val: Value(Scalar(0x00000003)) }
-        goto -> bb14;                    // bb3[1]: scope 2 at $DIR/match_test.rs:12:5: 17:6
+        goto -> bb14;                    // scope 2 at $DIR/match_test.rs:12:5: 17:6
     }
 
     bb4: {
-        _4 = Le(const 10i32, _1);        // bb4[0]: scope 2 at $DIR/match_test.rs:14:9: 14:16
+        _4 = Le(const 10i32, _1);        // scope 2 at $DIR/match_test.rs:14:9: 14:16
                                          // ty::Const
                                          // + ty: i32
                                          // + val: Value(Scalar(0x0000000a))
                                          // mir::Constant
                                          // + span: $DIR/match_test.rs:14:9: 14:16
                                          // + literal: Const { ty: i32, val: Value(Scalar(0x0000000a)) }
-        switchInt(move _4) -> [false: bb7, otherwise: bb5]; // bb4[1]: scope 2 at $DIR/match_test.rs:14:9: 14:16
+        switchInt(move _4) -> [false: bb7, otherwise: bb5]; // scope 2 at $DIR/match_test.rs:14:9: 14:16
     }
 
     bb5: {
-        _5 = Le(_1, const 20i32);        // bb5[0]: scope 2 at $DIR/match_test.rs:14:9: 14:16
+        _5 = Le(_1, const 20i32);        // scope 2 at $DIR/match_test.rs:14:9: 14:16
                                          // ty::Const
                                          // + ty: i32
                                          // + val: Value(Scalar(0x00000014))
                                          // mir::Constant
                                          // + span: $DIR/match_test.rs:14:9: 14:16
                                          // + literal: Const { ty: i32, val: Value(Scalar(0x00000014)) }
-        switchInt(move _5) -> [false: bb7, otherwise: bb6]; // bb5[1]: scope 2 at $DIR/match_test.rs:14:9: 14:16
+        switchInt(move _5) -> [false: bb7, otherwise: bb6]; // scope 2 at $DIR/match_test.rs:14:9: 14:16
     }
 
     bb6: {
-        falseEdges -> [real: bb12, imaginary: bb8]; // bb6[0]: scope 2 at $DIR/match_test.rs:14:9: 14:16
+        falseEdges -> [real: bb12, imaginary: bb8]; // scope 2 at $DIR/match_test.rs:14:9: 14:16
     }
 
     bb7: {
-        switchInt(_1) -> [-1i32: bb8, otherwise: bb3]; // bb7[0]: scope 2 at $DIR/match_test.rs:15:9: 15:11
+        switchInt(_1) -> [-1i32: bb8, otherwise: bb3]; // scope 2 at $DIR/match_test.rs:15:9: 15:11
     }
 
     bb8: {
-        falseEdges -> [real: bb13, imaginary: bb3]; // bb8[0]: scope 2 at $DIR/match_test.rs:15:9: 15:11
+        falseEdges -> [real: bb13, imaginary: bb3]; // scope 2 at $DIR/match_test.rs:15:9: 15:11
     }
 
     bb9: {
-        _8 = &shallow _1;                // bb9[0]: scope 2 at $DIR/match_test.rs:12:11: 12:12
-        StorageLive(_9);                 // bb9[1]: scope 2 at $DIR/match_test.rs:13:18: 13:19
-        _9 = _2;                         // bb9[2]: scope 2 at $DIR/match_test.rs:13:18: 13:19
-        switchInt(move _9) -> [false: bb11, otherwise: bb10]; // bb9[3]: scope 2 at $DIR/match_test.rs:13:18: 13:19
+        _8 = &shallow _1;                // scope 2 at $DIR/match_test.rs:12:11: 12:12
+        StorageLive(_9);                 // scope 2 at $DIR/match_test.rs:13:18: 13:19
+        _9 = _2;                         // scope 2 at $DIR/match_test.rs:13:18: 13:19
+        switchInt(move _9) -> [false: bb11, otherwise: bb10]; // scope 2 at $DIR/match_test.rs:13:18: 13:19
     }
 
     bb10: {
-        StorageDead(_9);                 // bb10[0]: scope 2 at $DIR/match_test.rs:13:24: 13:25
-        FakeRead(ForMatchGuard, _8);     // bb10[1]: scope 2 at $DIR/match_test.rs:13:18: 13:19
-        _3 = const 0i32;                 // bb10[2]: scope 2 at $DIR/match_test.rs:13:23: 13:24
+        StorageDead(_9);                 // scope 2 at $DIR/match_test.rs:13:24: 13:25
+        FakeRead(ForMatchGuard, _8);     // scope 2 at $DIR/match_test.rs:13:18: 13:19
+        _3 = const 0i32;                 // scope 2 at $DIR/match_test.rs:13:23: 13:24
                                          // ty::Const
                                          // + ty: i32
                                          // + val: Value(Scalar(0x00000000))
                                          // mir::Constant
                                          // + span: $DIR/match_test.rs:13:23: 13:24
                                          // + literal: Const { ty: i32, val: Value(Scalar(0x00000000)) }
-        goto -> bb14;                    // bb10[3]: scope 2 at $DIR/match_test.rs:12:5: 17:6
+        goto -> bb14;                    // scope 2 at $DIR/match_test.rs:12:5: 17:6
     }
 
     bb11: {
-        StorageDead(_9);                 // bb11[0]: scope 2 at $DIR/match_test.rs:13:24: 13:25
-        falseEdges -> [real: bb3, imaginary: bb6]; // bb11[1]: scope 2 at $DIR/match_test.rs:13:18: 13:19
+        StorageDead(_9);                 // scope 2 at $DIR/match_test.rs:13:24: 13:25
+        falseEdges -> [real: bb3, imaginary: bb6]; // scope 2 at $DIR/match_test.rs:13:18: 13:19
     }
 
     bb12: {
-        _3 = const 1i32;                 // bb12[0]: scope 2 at $DIR/match_test.rs:14:20: 14:21
+        _3 = const 1i32;                 // scope 2 at $DIR/match_test.rs:14:20: 14:21
                                          // ty::Const
                                          // + ty: i32
                                          // + val: Value(Scalar(0x00000001))
                                          // mir::Constant
                                          // + span: $DIR/match_test.rs:14:20: 14:21
                                          // + literal: Const { ty: i32, val: Value(Scalar(0x00000001)) }
-        goto -> bb14;                    // bb12[1]: scope 2 at $DIR/match_test.rs:12:5: 17:6
+        goto -> bb14;                    // scope 2 at $DIR/match_test.rs:12:5: 17:6
     }
 
     bb13: {
-        _3 = const 2i32;                 // bb13[0]: scope 2 at $DIR/match_test.rs:15:15: 15:16
+        _3 = const 2i32;                 // scope 2 at $DIR/match_test.rs:15:15: 15:16
                                          // ty::Const
                                          // + ty: i32
                                          // + val: Value(Scalar(0x00000002))
                                          // mir::Constant
                                          // + span: $DIR/match_test.rs:15:15: 15:16
                                          // + literal: Const { ty: i32, val: Value(Scalar(0x00000002)) }
-        goto -> bb14;                    // bb13[1]: scope 2 at $DIR/match_test.rs:12:5: 17:6
+        goto -> bb14;                    // scope 2 at $DIR/match_test.rs:12:5: 17:6
     }
 
     bb14: {
-        StorageDead(_3);                 // bb14[0]: scope 2 at $DIR/match_test.rs:17:6: 17:7
-        _0 = const ();                   // bb14[1]: scope 0 at $DIR/match_test.rs:6:11: 18:2
+        StorageDead(_3);                 // scope 2 at $DIR/match_test.rs:17:6: 17:7
+        _0 = const ();                   // scope 0 at $DIR/match_test.rs:6:11: 18:2
                                          // ty::Const
                                          // + ty: ()
                                          // + val: Value(Scalar(<ZST>))
                                          // mir::Constant
                                          // + span: $DIR/match_test.rs:6:11: 18:2
                                          // + literal: Const { ty: (), val: Value(Scalar(<ZST>)) }
-        StorageDead(_2);                 // bb14[2]: scope 1 at $DIR/match_test.rs:18:1: 18:2
-        StorageDead(_1);                 // bb14[3]: scope 0 at $DIR/match_test.rs:18:1: 18:2
-        return;                          // bb14[4]: scope 0 at $DIR/match_test.rs:18:2: 18:2
+        StorageDead(_2);                 // scope 1 at $DIR/match_test.rs:18:1: 18:2
+        StorageDead(_1);                 // scope 0 at $DIR/match_test.rs:18:1: 18:2
+        return;                          // scope 0 at $DIR/match_test.rs:18:2: 18:2
     }
 }
diff --git a/src/test/mir-opt/no-drop-for-inactive-variant/rustc.unwrap.SimplifyCfg-elaborate-drops.after.mir b/src/test/mir-opt/no-drop-for-inactive-variant/rustc.unwrap.SimplifyCfg-elaborate-drops.after.mir
index 38302411336..a20a3c0e603 100644
--- a/src/test/mir-opt/no-drop-for-inactive-variant/rustc.unwrap.SimplifyCfg-elaborate-drops.after.mir
+++ b/src/test/mir-opt/no-drop-for-inactive-variant/rustc.unwrap.SimplifyCfg-elaborate-drops.after.mir
@@ -13,17 +13,17 @@ fn unwrap(_1: std::option::Option<T>) -> T {
     }
 
     bb0: {
-        _2 = discriminant(_1);           // bb0[0]: scope 0 at $DIR/no-drop-for-inactive-variant.rs:9:9: 9:16
-        switchInt(move _2) -> [0isize: bb2, 1isize: bb4, otherwise: bb3]; // bb0[1]: scope 0 at $DIR/no-drop-for-inactive-variant.rs:9:9: 9:16
+        _2 = discriminant(_1);           // scope 0 at $DIR/no-drop-for-inactive-variant.rs:9:9: 9:16
+        switchInt(move _2) -> [0isize: bb2, 1isize: bb4, otherwise: bb3]; // scope 0 at $DIR/no-drop-for-inactive-variant.rs:9:9: 9:16
     }
 
     bb1 (cleanup): {
-        resume;                          // bb1[0]: scope 0 at $DIR/no-drop-for-inactive-variant.rs:7:1: 12:2
+        resume;                          // scope 0 at $DIR/no-drop-for-inactive-variant.rs:7:1: 12:2
     }
 
     bb2: {
-        StorageLive(_4);                 // bb2[0]: scope 0 at $SRC_DIR/libstd/macros.rs:LL:COL
-        const std::rt::begin_panic::<&str>(const "explicit panic") -> bb5; // bb2[1]: scope 0 at $SRC_DIR/libstd/macros.rs:LL:COL
+        StorageLive(_4);                 // scope 0 at $SRC_DIR/libstd/macros.rs:LL:COL
+        const std::rt::begin_panic::<&str>(const "explicit panic") -> bb5; // scope 0 at $SRC_DIR/libstd/macros.rs:LL:COL
                                          // ty::Const
                                          // + ty: fn(&str) -> ! {std::rt::begin_panic::<&str>}
                                          // + val: Value(Scalar(<ZST>))
@@ -39,19 +39,19 @@ fn unwrap(_1: std::option::Option<T>) -> T {
     }
 
     bb3: {
-        unreachable;                     // bb3[0]: scope 0 at $DIR/no-drop-for-inactive-variant.rs:8:11: 8:14
+        unreachable;                     // scope 0 at $DIR/no-drop-for-inactive-variant.rs:8:11: 8:14
     }
 
     bb4: {
-        StorageLive(_3);                 // bb4[0]: scope 0 at $DIR/no-drop-for-inactive-variant.rs:9:14: 9:15
-        _3 = move ((_1 as Some).0: T);   // bb4[1]: scope 0 at $DIR/no-drop-for-inactive-variant.rs:9:14: 9:15
-        _0 = move _3;                    // bb4[2]: scope 1 at $DIR/no-drop-for-inactive-variant.rs:9:20: 9:21
-        StorageDead(_3);                 // bb4[3]: scope 0 at $DIR/no-drop-for-inactive-variant.rs:9:21: 9:22
-        _5 = discriminant(_1);           // bb4[4]: scope 0 at $DIR/no-drop-for-inactive-variant.rs:12:1: 12:2
-        return;                          // bb4[5]: scope 0 at $DIR/no-drop-for-inactive-variant.rs:12:2: 12:2
+        StorageLive(_3);                 // scope 0 at $DIR/no-drop-for-inactive-variant.rs:9:14: 9:15
+        _3 = move ((_1 as Some).0: T);   // scope 0 at $DIR/no-drop-for-inactive-variant.rs:9:14: 9:15
+        _0 = move _3;                    // scope 1 at $DIR/no-drop-for-inactive-variant.rs:9:20: 9:21
+        StorageDead(_3);                 // scope 0 at $DIR/no-drop-for-inactive-variant.rs:9:21: 9:22
+        _5 = discriminant(_1);           // scope 0 at $DIR/no-drop-for-inactive-variant.rs:12:1: 12:2
+        return;                          // scope 0 at $DIR/no-drop-for-inactive-variant.rs:12:2: 12:2
     }
 
     bb5 (cleanup): {
-        drop(_1) -> bb1;                 // bb5[0]: scope 0 at $DIR/no-drop-for-inactive-variant.rs:12:1: 12:2
+        drop(_1) -> bb1;                 // scope 0 at $DIR/no-drop-for-inactive-variant.rs:12:1: 12:2
     }
 }
diff --git a/src/test/mir-opt/no-spurious-drop-after-call/rustc.main.ElaborateDrops.before.mir b/src/test/mir-opt/no-spurious-drop-after-call/rustc.main.ElaborateDrops.before.mir
index e43e37feba7..e1ab6cc0b94 100644
--- a/src/test/mir-opt/no-spurious-drop-after-call/rustc.main.ElaborateDrops.before.mir
+++ b/src/test/mir-opt/no-spurious-drop-after-call/rustc.main.ElaborateDrops.before.mir
@@ -8,19 +8,19 @@ fn main() -> () {
     let _4: &str;                        // in scope 0 at $DIR/no-spurious-drop-after-call.rs:9:20: 9:22
 
     bb0: {
-        StorageLive(_1);                 // bb0[0]: scope 0 at $DIR/no-spurious-drop-after-call.rs:9:5: 9:35
-        StorageLive(_2);                 // bb0[1]: scope 0 at $DIR/no-spurious-drop-after-call.rs:9:20: 9:34
-        StorageLive(_3);                 // bb0[2]: scope 0 at $DIR/no-spurious-drop-after-call.rs:9:20: 9:22
-        StorageLive(_4);                 // bb0[3]: scope 0 at $DIR/no-spurious-drop-after-call.rs:9:20: 9:22
-        _4 = const "";                   // bb0[4]: scope 0 at $DIR/no-spurious-drop-after-call.rs:9:20: 9:22
+        StorageLive(_1);                 // scope 0 at $DIR/no-spurious-drop-after-call.rs:9:5: 9:35
+        StorageLive(_2);                 // scope 0 at $DIR/no-spurious-drop-after-call.rs:9:20: 9:34
+        StorageLive(_3);                 // scope 0 at $DIR/no-spurious-drop-after-call.rs:9:20: 9:22
+        StorageLive(_4);                 // scope 0 at $DIR/no-spurious-drop-after-call.rs:9:20: 9:22
+        _4 = const "";                   // scope 0 at $DIR/no-spurious-drop-after-call.rs:9:20: 9:22
                                          // ty::Const
                                          // + ty: &str
                                          // + val: Value(Slice { data: Allocation { bytes: [], relocations: Relocations(SortedMap { data: [] }), undef_mask: UndefMask { blocks: [], len: Size { raw: 0 } }, size: Size { raw: 0 }, align: Align { pow2: 0 }, mutability: Not, extra: () }, start: 0, end: 0 })
                                          // mir::Constant
                                          // + span: $DIR/no-spurious-drop-after-call.rs:9:20: 9:22
                                          // + literal: Const { ty: &str, val: Value(Slice { data: Allocation { bytes: [], relocations: Relocations(SortedMap { data: [] }), undef_mask: UndefMask { blocks: [], len: Size { raw: 0 } }, size: Size { raw: 0 }, align: Align { pow2: 0 }, mutability: Not, extra: () }, start: 0, end: 0 }) }
-        _3 = &(*_4);                     // bb0[5]: scope 0 at $DIR/no-spurious-drop-after-call.rs:9:20: 9:22
-        _2 = const <str as std::string::ToString>::to_string(move _3) -> bb2; // bb0[6]: scope 0 at $DIR/no-spurious-drop-after-call.rs:9:20: 9:34
+        _3 = &(*_4);                     // scope 0 at $DIR/no-spurious-drop-after-call.rs:9:20: 9:22
+        _2 = const <str as std::string::ToString>::to_string(move _3) -> bb2; // scope 0 at $DIR/no-spurious-drop-after-call.rs:9:20: 9:34
                                          // ty::Const
                                          // + ty: for<'r> fn(&'r str) -> std::string::String {<str as std::string::ToString>::to_string}
                                          // + val: Value(Scalar(<ZST>))
@@ -30,12 +30,12 @@ fn main() -> () {
     }
 
     bb1 (cleanup): {
-        resume;                          // bb1[0]: scope 0 at $DIR/no-spurious-drop-after-call.rs:8:1: 10:2
+        resume;                          // scope 0 at $DIR/no-spurious-drop-after-call.rs:8:1: 10:2
     }
 
     bb2: {
-        StorageDead(_3);                 // bb2[0]: scope 0 at $DIR/no-spurious-drop-after-call.rs:9:33: 9:34
-        _1 = const std::mem::drop::<std::string::String>(move _2) -> [return: bb3, unwind: bb4]; // bb2[1]: scope 0 at $DIR/no-spurious-drop-after-call.rs:9:5: 9:35
+        StorageDead(_3);                 // scope 0 at $DIR/no-spurious-drop-after-call.rs:9:33: 9:34
+        _1 = const std::mem::drop::<std::string::String>(move _2) -> [return: bb3, unwind: bb4]; // scope 0 at $DIR/no-spurious-drop-after-call.rs:9:5: 9:35
                                          // ty::Const
                                          // + ty: fn(std::string::String) {std::mem::drop::<std::string::String>}
                                          // + val: Value(Scalar(<ZST>))
@@ -45,20 +45,20 @@ fn main() -> () {
     }
 
     bb3: {
-        StorageDead(_2);                 // bb3[0]: scope 0 at $DIR/no-spurious-drop-after-call.rs:9:34: 9:35
-        StorageDead(_4);                 // bb3[1]: scope 0 at $DIR/no-spurious-drop-after-call.rs:9:35: 9:36
-        StorageDead(_1);                 // bb3[2]: scope 0 at $DIR/no-spurious-drop-after-call.rs:9:35: 9:36
-        _0 = const ();                   // bb3[3]: scope 0 at $DIR/no-spurious-drop-after-call.rs:8:11: 10:2
+        StorageDead(_2);                 // scope 0 at $DIR/no-spurious-drop-after-call.rs:9:34: 9:35
+        StorageDead(_4);                 // scope 0 at $DIR/no-spurious-drop-after-call.rs:9:35: 9:36
+        StorageDead(_1);                 // scope 0 at $DIR/no-spurious-drop-after-call.rs:9:35: 9:36
+        _0 = const ();                   // scope 0 at $DIR/no-spurious-drop-after-call.rs:8:11: 10:2
                                          // ty::Const
                                          // + ty: ()
                                          // + val: Value(Scalar(<ZST>))
                                          // mir::Constant
                                          // + span: $DIR/no-spurious-drop-after-call.rs:8:11: 10:2
                                          // + literal: Const { ty: (), val: Value(Scalar(<ZST>)) }
-        return;                          // bb3[4]: scope 0 at $DIR/no-spurious-drop-after-call.rs:10:2: 10:2
+        return;                          // scope 0 at $DIR/no-spurious-drop-after-call.rs:10:2: 10:2
     }
 
     bb4 (cleanup): {
-        drop(_2) -> bb1;                 // bb4[0]: scope 0 at $DIR/no-spurious-drop-after-call.rs:9:34: 9:35
+        drop(_2) -> bb1;                 // scope 0 at $DIR/no-spurious-drop-after-call.rs:9:34: 9:35
     }
 }
diff --git a/src/test/mir-opt/packed-struct-drop-aligned/32bit/rustc.main.SimplifyCfg-elaborate-drops.after.mir b/src/test/mir-opt/packed-struct-drop-aligned/32bit/rustc.main.SimplifyCfg-elaborate-drops.after.mir
index cf423d06efb..21dab9ab923 100644
--- a/src/test/mir-opt/packed-struct-drop-aligned/32bit/rustc.main.SimplifyCfg-elaborate-drops.after.mir
+++ b/src/test/mir-opt/packed-struct-drop-aligned/32bit/rustc.main.SimplifyCfg-elaborate-drops.after.mir
@@ -13,61 +13,61 @@ fn main() -> () {
     }
 
     bb0: {
-        StorageLive(_1);                 // bb0[0]: scope 0 at $DIR/packed-struct-drop-aligned.rs:6:9: 6:14
-        StorageLive(_2);                 // bb0[1]: scope 0 at $DIR/packed-struct-drop-aligned.rs:6:24: 6:42
-        StorageLive(_3);                 // bb0[2]: scope 0 at $DIR/packed-struct-drop-aligned.rs:6:32: 6:41
-        _3 = Droppy(const 0usize);       // bb0[3]: scope 0 at $DIR/packed-struct-drop-aligned.rs:6:32: 6:41
+        StorageLive(_1);                 // scope 0 at $DIR/packed-struct-drop-aligned.rs:6:9: 6:14
+        StorageLive(_2);                 // scope 0 at $DIR/packed-struct-drop-aligned.rs:6:24: 6:42
+        StorageLive(_3);                 // scope 0 at $DIR/packed-struct-drop-aligned.rs:6:32: 6:41
+        _3 = Droppy(const 0usize);       // scope 0 at $DIR/packed-struct-drop-aligned.rs:6:32: 6:41
                                          // ty::Const
                                          // + ty: usize
                                          // + val: Value(Scalar(0x00000000))
                                          // mir::Constant
                                          // + span: $DIR/packed-struct-drop-aligned.rs:6:39: 6:40
                                          // + literal: Const { ty: usize, val: Value(Scalar(0x00000000)) }
-        _2 = Aligned(move _3);           // bb0[4]: scope 0 at $DIR/packed-struct-drop-aligned.rs:6:24: 6:42
-        StorageDead(_3);                 // bb0[5]: scope 0 at $DIR/packed-struct-drop-aligned.rs:6:41: 6:42
-        _1 = Packed(move _2);            // bb0[6]: scope 0 at $DIR/packed-struct-drop-aligned.rs:6:17: 6:43
-        StorageDead(_2);                 // bb0[7]: scope 0 at $DIR/packed-struct-drop-aligned.rs:6:42: 6:43
-        StorageLive(_4);                 // bb0[8]: scope 1 at $DIR/packed-struct-drop-aligned.rs:7:11: 7:29
-        StorageLive(_5);                 // bb0[9]: scope 1 at $DIR/packed-struct-drop-aligned.rs:7:19: 7:28
-        _5 = Droppy(const 0usize);       // bb0[10]: scope 1 at $DIR/packed-struct-drop-aligned.rs:7:19: 7:28
+        _2 = Aligned(move _3);           // scope 0 at $DIR/packed-struct-drop-aligned.rs:6:24: 6:42
+        StorageDead(_3);                 // scope 0 at $DIR/packed-struct-drop-aligned.rs:6:41: 6:42
+        _1 = Packed(move _2);            // scope 0 at $DIR/packed-struct-drop-aligned.rs:6:17: 6:43
+        StorageDead(_2);                 // scope 0 at $DIR/packed-struct-drop-aligned.rs:6:42: 6:43
+        StorageLive(_4);                 // scope 1 at $DIR/packed-struct-drop-aligned.rs:7:11: 7:29
+        StorageLive(_5);                 // scope 1 at $DIR/packed-struct-drop-aligned.rs:7:19: 7:28
+        _5 = Droppy(const 0usize);       // scope 1 at $DIR/packed-struct-drop-aligned.rs:7:19: 7:28
                                          // ty::Const
                                          // + ty: usize
                                          // + val: Value(Scalar(0x00000000))
                                          // mir::Constant
                                          // + span: $DIR/packed-struct-drop-aligned.rs:7:26: 7:27
                                          // + literal: Const { ty: usize, val: Value(Scalar(0x00000000)) }
-        _4 = Aligned(move _5);           // bb0[11]: scope 1 at $DIR/packed-struct-drop-aligned.rs:7:11: 7:29
-        StorageDead(_5);                 // bb0[12]: scope 1 at $DIR/packed-struct-drop-aligned.rs:7:28: 7:29
-        StorageLive(_6);                 // bb0[13]: scope 1 at $DIR/packed-struct-drop-aligned.rs:7:5: 7:8
-        _6 = move (_1.0: Aligned);       // bb0[14]: scope 1 at $DIR/packed-struct-drop-aligned.rs:7:5: 7:8
-        drop(_6) -> [return: bb4, unwind: bb3]; // bb0[15]: scope 1 at $DIR/packed-struct-drop-aligned.rs:7:5: 7:8
+        _4 = Aligned(move _5);           // scope 1 at $DIR/packed-struct-drop-aligned.rs:7:11: 7:29
+        StorageDead(_5);                 // scope 1 at $DIR/packed-struct-drop-aligned.rs:7:28: 7:29
+        StorageLive(_6);                 // scope 1 at $DIR/packed-struct-drop-aligned.rs:7:5: 7:8
+        _6 = move (_1.0: Aligned);       // scope 1 at $DIR/packed-struct-drop-aligned.rs:7:5: 7:8
+        drop(_6) -> [return: bb4, unwind: bb3]; // scope 1 at $DIR/packed-struct-drop-aligned.rs:7:5: 7:8
     }
 
     bb1 (cleanup): {
-        resume;                          // bb1[0]: scope 0 at $DIR/packed-struct-drop-aligned.rs:5:1: 8:2
+        resume;                          // scope 0 at $DIR/packed-struct-drop-aligned.rs:5:1: 8:2
     }
 
     bb2: {
-        StorageDead(_1);                 // bb2[0]: scope 0 at $DIR/packed-struct-drop-aligned.rs:8:1: 8:2
-        return;                          // bb2[1]: scope 0 at $DIR/packed-struct-drop-aligned.rs:8:2: 8:2
+        StorageDead(_1);                 // scope 0 at $DIR/packed-struct-drop-aligned.rs:8:1: 8:2
+        return;                          // scope 0 at $DIR/packed-struct-drop-aligned.rs:8:2: 8:2
     }
 
     bb3 (cleanup): {
-        (_1.0: Aligned) = move _4;       // bb3[0]: scope 1 at $DIR/packed-struct-drop-aligned.rs:7:5: 7:8
-        drop(_1) -> bb1;                 // bb3[1]: scope 0 at $DIR/packed-struct-drop-aligned.rs:8:1: 8:2
+        (_1.0: Aligned) = move _4;       // scope 1 at $DIR/packed-struct-drop-aligned.rs:7:5: 7:8
+        drop(_1) -> bb1;                 // scope 0 at $DIR/packed-struct-drop-aligned.rs:8:1: 8:2
     }
 
     bb4: {
-        StorageDead(_6);                 // bb4[0]: scope 1 at $DIR/packed-struct-drop-aligned.rs:7:5: 7:8
-        (_1.0: Aligned) = move _4;       // bb4[1]: scope 1 at $DIR/packed-struct-drop-aligned.rs:7:5: 7:8
-        StorageDead(_4);                 // bb4[2]: scope 1 at $DIR/packed-struct-drop-aligned.rs:7:28: 7:29
-        _0 = const ();                   // bb4[3]: scope 0 at $DIR/packed-struct-drop-aligned.rs:5:11: 8:2
+        StorageDead(_6);                 // scope 1 at $DIR/packed-struct-drop-aligned.rs:7:5: 7:8
+        (_1.0: Aligned) = move _4;       // scope 1 at $DIR/packed-struct-drop-aligned.rs:7:5: 7:8
+        StorageDead(_4);                 // scope 1 at $DIR/packed-struct-drop-aligned.rs:7:28: 7:29
+        _0 = const ();                   // scope 0 at $DIR/packed-struct-drop-aligned.rs:5:11: 8:2
                                          // ty::Const
                                          // + ty: ()
                                          // + val: Value(Scalar(<ZST>))
                                          // mir::Constant
                                          // + span: $DIR/packed-struct-drop-aligned.rs:5:11: 8:2
                                          // + literal: Const { ty: (), val: Value(Scalar(<ZST>)) }
-        drop(_1) -> [return: bb2, unwind: bb1]; // bb4[4]: scope 0 at $DIR/packed-struct-drop-aligned.rs:8:1: 8:2
+        drop(_1) -> [return: bb2, unwind: bb1]; // scope 0 at $DIR/packed-struct-drop-aligned.rs:8:1: 8:2
     }
 }
diff --git a/src/test/mir-opt/packed-struct-drop-aligned/64bit/rustc.main.SimplifyCfg-elaborate-drops.after.mir b/src/test/mir-opt/packed-struct-drop-aligned/64bit/rustc.main.SimplifyCfg-elaborate-drops.after.mir
index 09b398e9604..cf46f74c16d 100644
--- a/src/test/mir-opt/packed-struct-drop-aligned/64bit/rustc.main.SimplifyCfg-elaborate-drops.after.mir
+++ b/src/test/mir-opt/packed-struct-drop-aligned/64bit/rustc.main.SimplifyCfg-elaborate-drops.after.mir
@@ -13,61 +13,61 @@ fn main() -> () {
     }
 
     bb0: {
-        StorageLive(_1);                 // bb0[0]: scope 0 at $DIR/packed-struct-drop-aligned.rs:6:9: 6:14
-        StorageLive(_2);                 // bb0[1]: scope 0 at $DIR/packed-struct-drop-aligned.rs:6:24: 6:42
-        StorageLive(_3);                 // bb0[2]: scope 0 at $DIR/packed-struct-drop-aligned.rs:6:32: 6:41
-        _3 = Droppy(const 0usize);       // bb0[3]: scope 0 at $DIR/packed-struct-drop-aligned.rs:6:32: 6:41
+        StorageLive(_1);                 // scope 0 at $DIR/packed-struct-drop-aligned.rs:6:9: 6:14
+        StorageLive(_2);                 // scope 0 at $DIR/packed-struct-drop-aligned.rs:6:24: 6:42
+        StorageLive(_3);                 // scope 0 at $DIR/packed-struct-drop-aligned.rs:6:32: 6:41
+        _3 = Droppy(const 0usize);       // scope 0 at $DIR/packed-struct-drop-aligned.rs:6:32: 6:41
                                          // ty::Const
                                          // + ty: usize
                                          // + val: Value(Scalar(0x0000000000000000))
                                          // mir::Constant
                                          // + span: $DIR/packed-struct-drop-aligned.rs:6:39: 6:40
                                          // + literal: Const { ty: usize, val: Value(Scalar(0x0000000000000000)) }
-        _2 = Aligned(move _3);           // bb0[4]: scope 0 at $DIR/packed-struct-drop-aligned.rs:6:24: 6:42
-        StorageDead(_3);                 // bb0[5]: scope 0 at $DIR/packed-struct-drop-aligned.rs:6:41: 6:42
-        _1 = Packed(move _2);            // bb0[6]: scope 0 at $DIR/packed-struct-drop-aligned.rs:6:17: 6:43
-        StorageDead(_2);                 // bb0[7]: scope 0 at $DIR/packed-struct-drop-aligned.rs:6:42: 6:43
-        StorageLive(_4);                 // bb0[8]: scope 1 at $DIR/packed-struct-drop-aligned.rs:7:11: 7:29
-        StorageLive(_5);                 // bb0[9]: scope 1 at $DIR/packed-struct-drop-aligned.rs:7:19: 7:28
-        _5 = Droppy(const 0usize);       // bb0[10]: scope 1 at $DIR/packed-struct-drop-aligned.rs:7:19: 7:28
+        _2 = Aligned(move _3);           // scope 0 at $DIR/packed-struct-drop-aligned.rs:6:24: 6:42
+        StorageDead(_3);                 // scope 0 at $DIR/packed-struct-drop-aligned.rs:6:41: 6:42
+        _1 = Packed(move _2);            // scope 0 at $DIR/packed-struct-drop-aligned.rs:6:17: 6:43
+        StorageDead(_2);                 // scope 0 at $DIR/packed-struct-drop-aligned.rs:6:42: 6:43
+        StorageLive(_4);                 // scope 1 at $DIR/packed-struct-drop-aligned.rs:7:11: 7:29
+        StorageLive(_5);                 // scope 1 at $DIR/packed-struct-drop-aligned.rs:7:19: 7:28
+        _5 = Droppy(const 0usize);       // scope 1 at $DIR/packed-struct-drop-aligned.rs:7:19: 7:28
                                          // ty::Const
                                          // + ty: usize
                                          // + val: Value(Scalar(0x0000000000000000))
                                          // mir::Constant
                                          // + span: $DIR/packed-struct-drop-aligned.rs:7:26: 7:27
                                          // + literal: Const { ty: usize, val: Value(Scalar(0x0000000000000000)) }
-        _4 = Aligned(move _5);           // bb0[11]: scope 1 at $DIR/packed-struct-drop-aligned.rs:7:11: 7:29
-        StorageDead(_5);                 // bb0[12]: scope 1 at $DIR/packed-struct-drop-aligned.rs:7:28: 7:29
-        StorageLive(_6);                 // bb0[13]: scope 1 at $DIR/packed-struct-drop-aligned.rs:7:5: 7:8
-        _6 = move (_1.0: Aligned);       // bb0[14]: scope 1 at $DIR/packed-struct-drop-aligned.rs:7:5: 7:8
-        drop(_6) -> [return: bb4, unwind: bb3]; // bb0[15]: scope 1 at $DIR/packed-struct-drop-aligned.rs:7:5: 7:8
+        _4 = Aligned(move _5);           // scope 1 at $DIR/packed-struct-drop-aligned.rs:7:11: 7:29
+        StorageDead(_5);                 // scope 1 at $DIR/packed-struct-drop-aligned.rs:7:28: 7:29
+        StorageLive(_6);                 // scope 1 at $DIR/packed-struct-drop-aligned.rs:7:5: 7:8
+        _6 = move (_1.0: Aligned);       // scope 1 at $DIR/packed-struct-drop-aligned.rs:7:5: 7:8
+        drop(_6) -> [return: bb4, unwind: bb3]; // scope 1 at $DIR/packed-struct-drop-aligned.rs:7:5: 7:8
     }
 
     bb1 (cleanup): {
-        resume;                          // bb1[0]: scope 0 at $DIR/packed-struct-drop-aligned.rs:5:1: 8:2
+        resume;                          // scope 0 at $DIR/packed-struct-drop-aligned.rs:5:1: 8:2
     }
 
     bb2: {
-        StorageDead(_1);                 // bb2[0]: scope 0 at $DIR/packed-struct-drop-aligned.rs:8:1: 8:2
-        return;                          // bb2[1]: scope 0 at $DIR/packed-struct-drop-aligned.rs:8:2: 8:2
+        StorageDead(_1);                 // scope 0 at $DIR/packed-struct-drop-aligned.rs:8:1: 8:2
+        return;                          // scope 0 at $DIR/packed-struct-drop-aligned.rs:8:2: 8:2
     }
 
     bb3 (cleanup): {
-        (_1.0: Aligned) = move _4;       // bb3[0]: scope 1 at $DIR/packed-struct-drop-aligned.rs:7:5: 7:8
-        drop(_1) -> bb1;                 // bb3[1]: scope 0 at $DIR/packed-struct-drop-aligned.rs:8:1: 8:2
+        (_1.0: Aligned) = move _4;       // scope 1 at $DIR/packed-struct-drop-aligned.rs:7:5: 7:8
+        drop(_1) -> bb1;                 // scope 0 at $DIR/packed-struct-drop-aligned.rs:8:1: 8:2
     }
 
     bb4: {
-        StorageDead(_6);                 // bb4[0]: scope 1 at $DIR/packed-struct-drop-aligned.rs:7:5: 7:8
-        (_1.0: Aligned) = move _4;       // bb4[1]: scope 1 at $DIR/packed-struct-drop-aligned.rs:7:5: 7:8
-        StorageDead(_4);                 // bb4[2]: scope 1 at $DIR/packed-struct-drop-aligned.rs:7:28: 7:29
-        _0 = const ();                   // bb4[3]: scope 0 at $DIR/packed-struct-drop-aligned.rs:5:11: 8:2
+        StorageDead(_6);                 // scope 1 at $DIR/packed-struct-drop-aligned.rs:7:5: 7:8
+        (_1.0: Aligned) = move _4;       // scope 1 at $DIR/packed-struct-drop-aligned.rs:7:5: 7:8
+        StorageDead(_4);                 // scope 1 at $DIR/packed-struct-drop-aligned.rs:7:28: 7:29
+        _0 = const ();                   // scope 0 at $DIR/packed-struct-drop-aligned.rs:5:11: 8:2
                                          // ty::Const
                                          // + ty: ()
                                          // + val: Value(Scalar(<ZST>))
                                          // mir::Constant
                                          // + span: $DIR/packed-struct-drop-aligned.rs:5:11: 8:2
                                          // + literal: Const { ty: (), val: Value(Scalar(<ZST>)) }
-        drop(_1) -> [return: bb2, unwind: bb1]; // bb4[4]: scope 0 at $DIR/packed-struct-drop-aligned.rs:8:1: 8:2
+        drop(_1) -> [return: bb2, unwind: bb1]; // scope 0 at $DIR/packed-struct-drop-aligned.rs:8:1: 8:2
     }
 }
diff --git a/src/test/mir-opt/remove-never-const/rustc.no_codegen.PreCodegen.after.mir b/src/test/mir-opt/remove-never-const/rustc.no_codegen.PreCodegen.after.mir
index 1cc2138f19e..6f4a024d20f 100644
--- a/src/test/mir-opt/remove-never-const/rustc.no_codegen.PreCodegen.after.mir
+++ b/src/test/mir-opt/remove-never-const/rustc.no_codegen.PreCodegen.after.mir
@@ -6,6 +6,6 @@ fn no_codegen() -> () {
     }
 
     bb0: {
-        unreachable;                     // bb0[0]: scope 0 at $DIR/remove-never-const.rs:20:13: 20:33
+        unreachable;                     // scope 0 at $DIR/remove-never-const.rs:20:13: 20:33
     }
 }
diff --git a/src/test/mir-opt/remove_fake_borrows/rustc.match_guard.CleanupNonCodegenStatements.diff b/src/test/mir-opt/remove_fake_borrows/rustc.match_guard.CleanupNonCodegenStatements.diff
index c915554a127..4e626b1384a 100644
--- a/src/test/mir-opt/remove_fake_borrows/rustc.match_guard.CleanupNonCodegenStatements.diff
+++ b/src/test/mir-opt/remove_fake_borrows/rustc.match_guard.CleanupNonCodegenStatements.diff
@@ -13,76 +13,76 @@
       let mut _8: bool;                    // in scope 0 at $DIR/remove_fake_borrows.rs:8:20: 8:21
   
       bb0: {
--         FakeRead(ForMatchedPlace, _1);   // bb0[0]: scope 0 at $DIR/remove_fake_borrows.rs:7:11: 7:12
-+         nop;                             // bb0[0]: scope 0 at $DIR/remove_fake_borrows.rs:7:11: 7:12
-          _3 = discriminant(_1);           // bb0[1]: scope 0 at $DIR/remove_fake_borrows.rs:8:9: 8:16
-          switchInt(move _3) -> [1isize: bb2, otherwise: bb1]; // bb0[2]: scope 0 at $DIR/remove_fake_borrows.rs:8:9: 8:16
+-         FakeRead(ForMatchedPlace, _1);   // scope 0 at $DIR/remove_fake_borrows.rs:7:11: 7:12
++         nop;                             // scope 0 at $DIR/remove_fake_borrows.rs:7:11: 7:12
+          _3 = discriminant(_1);           // scope 0 at $DIR/remove_fake_borrows.rs:8:9: 8:16
+          switchInt(move _3) -> [1isize: bb2, otherwise: bb1]; // scope 0 at $DIR/remove_fake_borrows.rs:8:9: 8:16
       }
   
       bb1: {
-          _0 = const 1i32;                 // bb1[0]: scope 0 at $DIR/remove_fake_borrows.rs:9:14: 9:15
+          _0 = const 1i32;                 // scope 0 at $DIR/remove_fake_borrows.rs:9:14: 9:15
                                            // ty::Const
                                            // + ty: i32
                                            // + val: Value(Scalar(0x00000001))
                                            // mir::Constant
                                            // + span: $DIR/remove_fake_borrows.rs:9:14: 9:15
                                            // + literal: Const { ty: i32, val: Value(Scalar(0x00000001)) }
-          goto -> bb7;                     // bb1[1]: scope 0 at $DIR/remove_fake_borrows.rs:7:5: 10:6
+          goto -> bb7;                     // scope 0 at $DIR/remove_fake_borrows.rs:7:5: 10:6
       }
   
       bb2: {
-          switchInt((*(*((_1 as Some).0: &&i32)))) -> [0i32: bb3, otherwise: bb1]; // bb2[0]: scope 0 at $DIR/remove_fake_borrows.rs:8:14: 8:15
+          switchInt((*(*((_1 as Some).0: &&i32)))) -> [0i32: bb3, otherwise: bb1]; // scope 0 at $DIR/remove_fake_borrows.rs:8:14: 8:15
       }
   
       bb3: {
-          goto -> bb4;                     // bb3[0]: scope 0 at $DIR/remove_fake_borrows.rs:8:9: 8:16
+          goto -> bb4;                     // scope 0 at $DIR/remove_fake_borrows.rs:8:9: 8:16
       }
   
       bb4: {
--         _4 = &shallow _1;                // bb4[0]: scope 0 at $DIR/remove_fake_borrows.rs:7:11: 7:12
--         _5 = &shallow ((_1 as Some).0: &&i32); // bb4[1]: scope 0 at $DIR/remove_fake_borrows.rs:7:11: 7:12
--         _6 = &shallow (*((_1 as Some).0: &&i32)); // bb4[2]: scope 0 at $DIR/remove_fake_borrows.rs:7:11: 7:12
--         _7 = &shallow (*(*((_1 as Some).0: &&i32))); // bb4[3]: scope 0 at $DIR/remove_fake_borrows.rs:7:11: 7:12
-+         nop;                             // bb4[0]: scope 0 at $DIR/remove_fake_borrows.rs:7:11: 7:12
-+         nop;                             // bb4[1]: scope 0 at $DIR/remove_fake_borrows.rs:7:11: 7:12
-+         nop;                             // bb4[2]: scope 0 at $DIR/remove_fake_borrows.rs:7:11: 7:12
-+         nop;                             // bb4[3]: scope 0 at $DIR/remove_fake_borrows.rs:7:11: 7:12
-          StorageLive(_8);                 // bb4[4]: scope 0 at $DIR/remove_fake_borrows.rs:8:20: 8:21
-          _8 = _2;                         // bb4[5]: scope 0 at $DIR/remove_fake_borrows.rs:8:20: 8:21
-          switchInt(move _8) -> [false: bb6, otherwise: bb5]; // bb4[6]: scope 0 at $DIR/remove_fake_borrows.rs:8:20: 8:21
+-         _4 = &shallow _1;                // scope 0 at $DIR/remove_fake_borrows.rs:7:11: 7:12
+-         _5 = &shallow ((_1 as Some).0: &&i32); // scope 0 at $DIR/remove_fake_borrows.rs:7:11: 7:12
+-         _6 = &shallow (*((_1 as Some).0: &&i32)); // scope 0 at $DIR/remove_fake_borrows.rs:7:11: 7:12
+-         _7 = &shallow (*(*((_1 as Some).0: &&i32))); // scope 0 at $DIR/remove_fake_borrows.rs:7:11: 7:12
++         nop;                             // scope 0 at $DIR/remove_fake_borrows.rs:7:11: 7:12
++         nop;                             // scope 0 at $DIR/remove_fake_borrows.rs:7:11: 7:12
++         nop;                             // scope 0 at $DIR/remove_fake_borrows.rs:7:11: 7:12
++         nop;                             // scope 0 at $DIR/remove_fake_borrows.rs:7:11: 7:12
+          StorageLive(_8);                 // scope 0 at $DIR/remove_fake_borrows.rs:8:20: 8:21
+          _8 = _2;                         // scope 0 at $DIR/remove_fake_borrows.rs:8:20: 8:21
+          switchInt(move _8) -> [false: bb6, otherwise: bb5]; // scope 0 at $DIR/remove_fake_borrows.rs:8:20: 8:21
       }
   
       bb5: {
-          StorageDead(_8);                 // bb5[0]: scope 0 at $DIR/remove_fake_borrows.rs:8:26: 8:27
--         FakeRead(ForMatchGuard, _4);     // bb5[1]: scope 0 at $DIR/remove_fake_borrows.rs:8:20: 8:21
--         FakeRead(ForMatchGuard, _5);     // bb5[2]: scope 0 at $DIR/remove_fake_borrows.rs:8:20: 8:21
--         FakeRead(ForMatchGuard, _6);     // bb5[3]: scope 0 at $DIR/remove_fake_borrows.rs:8:20: 8:21
--         FakeRead(ForMatchGuard, _7);     // bb5[4]: scope 0 at $DIR/remove_fake_borrows.rs:8:20: 8:21
-+         nop;                             // bb5[1]: scope 0 at $DIR/remove_fake_borrows.rs:8:20: 8:21
-+         nop;                             // bb5[2]: scope 0 at $DIR/remove_fake_borrows.rs:8:20: 8:21
-+         nop;                             // bb5[3]: scope 0 at $DIR/remove_fake_borrows.rs:8:20: 8:21
-+         nop;                             // bb5[4]: scope 0 at $DIR/remove_fake_borrows.rs:8:20: 8:21
-          _0 = const 0i32;                 // bb5[5]: scope 0 at $DIR/remove_fake_borrows.rs:8:25: 8:26
+          StorageDead(_8);                 // scope 0 at $DIR/remove_fake_borrows.rs:8:26: 8:27
+-         FakeRead(ForMatchGuard, _4);     // scope 0 at $DIR/remove_fake_borrows.rs:8:20: 8:21
+-         FakeRead(ForMatchGuard, _5);     // scope 0 at $DIR/remove_fake_borrows.rs:8:20: 8:21
+-         FakeRead(ForMatchGuard, _6);     // scope 0 at $DIR/remove_fake_borrows.rs:8:20: 8:21
+-         FakeRead(ForMatchGuard, _7);     // scope 0 at $DIR/remove_fake_borrows.rs:8:20: 8:21
++         nop;                             // scope 0 at $DIR/remove_fake_borrows.rs:8:20: 8:21
++         nop;                             // scope 0 at $DIR/remove_fake_borrows.rs:8:20: 8:21
++         nop;                             // scope 0 at $DIR/remove_fake_borrows.rs:8:20: 8:21
++         nop;                             // scope 0 at $DIR/remove_fake_borrows.rs:8:20: 8:21
+          _0 = const 0i32;                 // scope 0 at $DIR/remove_fake_borrows.rs:8:25: 8:26
                                            // ty::Const
                                            // + ty: i32
                                            // + val: Value(Scalar(0x00000000))
                                            // mir::Constant
                                            // + span: $DIR/remove_fake_borrows.rs:8:25: 8:26
                                            // + literal: Const { ty: i32, val: Value(Scalar(0x00000000)) }
-          goto -> bb7;                     // bb5[6]: scope 0 at $DIR/remove_fake_borrows.rs:7:5: 10:6
+          goto -> bb7;                     // scope 0 at $DIR/remove_fake_borrows.rs:7:5: 10:6
       }
   
       bb6: {
-          StorageDead(_8);                 // bb6[0]: scope 0 at $DIR/remove_fake_borrows.rs:8:26: 8:27
-          goto -> bb1;                     // bb6[1]: scope 0 at $DIR/remove_fake_borrows.rs:8:20: 8:21
+          StorageDead(_8);                 // scope 0 at $DIR/remove_fake_borrows.rs:8:26: 8:27
+          goto -> bb1;                     // scope 0 at $DIR/remove_fake_borrows.rs:8:20: 8:21
       }
   
       bb7: {
-          return;                          // bb7[0]: scope 0 at $DIR/remove_fake_borrows.rs:11:2: 11:2
+          return;                          // scope 0 at $DIR/remove_fake_borrows.rs:11:2: 11:2
       }
   
       bb8 (cleanup): {
-          resume;                          // bb8[0]: scope 0 at $DIR/remove_fake_borrows.rs:6:1: 11:2
+          resume;                          // scope 0 at $DIR/remove_fake_borrows.rs:6:1: 11:2
       }
   }
   
diff --git a/src/test/mir-opt/retag/rustc.main-{{closure}}.SimplifyCfg-elaborate-drops.after.mir b/src/test/mir-opt/retag/rustc.main-{{closure}}.SimplifyCfg-elaborate-drops.after.mir
index 5aa2510f344..01f5fbb7d23 100644
--- a/src/test/mir-opt/retag/rustc.main-{{closure}}.SimplifyCfg-elaborate-drops.after.mir
+++ b/src/test/mir-opt/retag/rustc.main-{{closure}}.SimplifyCfg-elaborate-drops.after.mir
@@ -9,14 +9,14 @@ fn main::{{closure}}#0(_1: &[closure@main::{{closure}}#0], _2: &i32) -> &i32 {
     }
 
     bb0: {
-        Retag([fn entry] _1);            // bb0[0]: scope 0 at $DIR/retag.rs:40:31: 43:6
-        Retag([fn entry] _2);            // bb0[1]: scope 0 at $DIR/retag.rs:40:31: 43:6
-        StorageLive(_3);                 // bb0[2]: scope 0 at $DIR/retag.rs:41:13: 41:15
-        _3 = _2;                         // bb0[3]: scope 0 at $DIR/retag.rs:41:18: 41:19
-        Retag(_3);                       // bb0[4]: scope 0 at $DIR/retag.rs:41:18: 41:19
-        _0 = _2;                         // bb0[5]: scope 1 at $DIR/retag.rs:42:9: 42:10
-        Retag(_0);                       // bb0[6]: scope 1 at $DIR/retag.rs:42:9: 42:10
-        StorageDead(_3);                 // bb0[7]: scope 0 at $DIR/retag.rs:43:5: 43:6
-        return;                          // bb0[8]: scope 0 at $DIR/retag.rs:43:6: 43:6
+        Retag([fn entry] _1);            // scope 0 at $DIR/retag.rs:40:31: 43:6
+        Retag([fn entry] _2);            // scope 0 at $DIR/retag.rs:40:31: 43:6
+        StorageLive(_3);                 // scope 0 at $DIR/retag.rs:41:13: 41:15
+        _3 = _2;                         // scope 0 at $DIR/retag.rs:41:18: 41:19
+        Retag(_3);                       // scope 0 at $DIR/retag.rs:41:18: 41:19
+        _0 = _2;                         // scope 1 at $DIR/retag.rs:42:9: 42:10
+        Retag(_0);                       // scope 1 at $DIR/retag.rs:42:9: 42:10
+        StorageDead(_3);                 // scope 0 at $DIR/retag.rs:43:5: 43:6
+        return;                          // scope 0 at $DIR/retag.rs:43:6: 43:6
     }
 }
diff --git a/src/test/mir-opt/retag/rustc.main.SimplifyCfg-elaborate-drops.after.mir b/src/test/mir-opt/retag/rustc.main.SimplifyCfg-elaborate-drops.after.mir
index 125f69b0bc2..7484d209d1b 100644
--- a/src/test/mir-opt/retag/rustc.main.SimplifyCfg-elaborate-drops.after.mir
+++ b/src/test/mir-opt/retag/rustc.main.SimplifyCfg-elaborate-drops.after.mir
@@ -55,34 +55,34 @@ fn main() -> () {
     }
 
     bb0: {
-        StorageLive(_1);                 // bb0[0]: scope 0 at $DIR/retag.rs:30:9: 30:14
-        _1 = const 0i32;                 // bb0[1]: scope 0 at $DIR/retag.rs:30:17: 30:18
+        StorageLive(_1);                 // scope 0 at $DIR/retag.rs:30:9: 30:14
+        _1 = const 0i32;                 // scope 0 at $DIR/retag.rs:30:17: 30:18
                                          // ty::Const
                                          // + ty: i32
                                          // + val: Value(Scalar(0x00000000))
                                          // mir::Constant
                                          // + span: $DIR/retag.rs:30:17: 30:18
                                          // + literal: Const { ty: i32, val: Value(Scalar(0x00000000)) }
-        StorageLive(_2);                 // bb0[2]: scope 1 at $DIR/retag.rs:31:5: 37:6
-        StorageLive(_3);                 // bb0[3]: scope 1 at $DIR/retag.rs:32:13: 32:14
-        StorageLive(_4);                 // bb0[4]: scope 1 at $DIR/retag.rs:32:17: 32:24
-        StorageLive(_5);                 // bb0[5]: scope 1 at $DIR/retag.rs:32:17: 32:24
-        _5 = Test(const 0i32);           // bb0[6]: scope 1 at $DIR/retag.rs:32:17: 32:24
+        StorageLive(_2);                 // scope 1 at $DIR/retag.rs:31:5: 37:6
+        StorageLive(_3);                 // scope 1 at $DIR/retag.rs:32:13: 32:14
+        StorageLive(_4);                 // scope 1 at $DIR/retag.rs:32:17: 32:24
+        StorageLive(_5);                 // scope 1 at $DIR/retag.rs:32:17: 32:24
+        _5 = Test(const 0i32);           // scope 1 at $DIR/retag.rs:32:17: 32:24
                                          // ty::Const
                                          // + ty: i32
                                          // + val: Value(Scalar(0x00000000))
                                          // mir::Constant
                                          // + span: $DIR/retag.rs:32:22: 32:23
                                          // + literal: Const { ty: i32, val: Value(Scalar(0x00000000)) }
-        _4 = &_5;                        // bb0[7]: scope 1 at $DIR/retag.rs:32:17: 32:24
-        Retag(_4);                       // bb0[8]: scope 1 at $DIR/retag.rs:32:17: 32:24
-        StorageLive(_6);                 // bb0[9]: scope 1 at $DIR/retag.rs:32:29: 32:35
-        StorageLive(_7);                 // bb0[10]: scope 1 at $DIR/retag.rs:32:29: 32:35
-        _7 = &mut _1;                    // bb0[11]: scope 1 at $DIR/retag.rs:32:29: 32:35
-        Retag(_7);                       // bb0[12]: scope 1 at $DIR/retag.rs:32:29: 32:35
-        _6 = &mut (*_7);                 // bb0[13]: scope 1 at $DIR/retag.rs:32:29: 32:35
-        Retag([2phase] _6);              // bb0[14]: scope 1 at $DIR/retag.rs:32:29: 32:35
-        _3 = const Test::foo(move _4, move _6) -> [return: bb2, unwind: bb3]; // bb0[15]: scope 1 at $DIR/retag.rs:32:17: 32:36
+        _4 = &_5;                        // scope 1 at $DIR/retag.rs:32:17: 32:24
+        Retag(_4);                       // scope 1 at $DIR/retag.rs:32:17: 32:24
+        StorageLive(_6);                 // scope 1 at $DIR/retag.rs:32:29: 32:35
+        StorageLive(_7);                 // scope 1 at $DIR/retag.rs:32:29: 32:35
+        _7 = &mut _1;                    // scope 1 at $DIR/retag.rs:32:29: 32:35
+        Retag(_7);                       // scope 1 at $DIR/retag.rs:32:29: 32:35
+        _6 = &mut (*_7);                 // scope 1 at $DIR/retag.rs:32:29: 32:35
+        Retag([2phase] _6);              // scope 1 at $DIR/retag.rs:32:29: 32:35
+        _3 = const Test::foo(move _4, move _6) -> [return: bb2, unwind: bb3]; // scope 1 at $DIR/retag.rs:32:17: 32:36
                                          // ty::Const
                                          // + ty: for<'r, 'x> fn(&'r Test, &'x mut i32) -> &'x mut i32 {Test::foo}
                                          // + val: Value(Scalar(<ZST>))
@@ -92,54 +92,54 @@ fn main() -> () {
     }
 
     bb1 (cleanup): {
-        resume;                          // bb1[0]: scope 0 at $DIR/retag.rs:29:1: 51:2
+        resume;                          // scope 0 at $DIR/retag.rs:29:1: 51:2
     }
 
     bb2: {
-        Retag(_3);                       // bb2[0]: scope 1 at $DIR/retag.rs:32:17: 32:36
-        StorageDead(_6);                 // bb2[1]: scope 1 at $DIR/retag.rs:32:35: 32:36
-        StorageDead(_4);                 // bb2[2]: scope 1 at $DIR/retag.rs:32:35: 32:36
-        StorageDead(_7);                 // bb2[3]: scope 1 at $DIR/retag.rs:32:36: 32:37
-        drop(_5) -> [return: bb4, unwind: bb1]; // bb2[4]: scope 1 at $DIR/retag.rs:32:36: 32:37
+        Retag(_3);                       // scope 1 at $DIR/retag.rs:32:17: 32:36
+        StorageDead(_6);                 // scope 1 at $DIR/retag.rs:32:35: 32:36
+        StorageDead(_4);                 // scope 1 at $DIR/retag.rs:32:35: 32:36
+        StorageDead(_7);                 // scope 1 at $DIR/retag.rs:32:36: 32:37
+        drop(_5) -> [return: bb4, unwind: bb1]; // scope 1 at $DIR/retag.rs:32:36: 32:37
     }
 
     bb3 (cleanup): {
-        drop(_5) -> bb1;                 // bb3[0]: scope 1 at $DIR/retag.rs:32:36: 32:37
+        drop(_5) -> bb1;                 // scope 1 at $DIR/retag.rs:32:36: 32:37
     }
 
     bb4: {
-        StorageDead(_5);                 // bb4[0]: scope 1 at $DIR/retag.rs:32:36: 32:37
-        StorageLive(_8);                 // bb4[1]: scope 2 at $DIR/retag.rs:33:13: 33:14
-        StorageLive(_9);                 // bb4[2]: scope 2 at $DIR/retag.rs:33:19: 33:20
-        _9 = move _3;                    // bb4[3]: scope 2 at $DIR/retag.rs:33:19: 33:20
-        Retag(_9);                       // bb4[4]: scope 2 at $DIR/retag.rs:33:19: 33:20
-        _8 = &mut (*_9);                 // bb4[5]: scope 2 at $DIR/retag.rs:33:19: 33:20
-        Retag(_8);                       // bb4[6]: scope 2 at $DIR/retag.rs:33:19: 33:20
-        StorageDead(_9);                 // bb4[7]: scope 2 at $DIR/retag.rs:33:22: 33:23
-        StorageLive(_10);                // bb4[8]: scope 3 at $DIR/retag.rs:34:13: 34:14
-        _10 = move _8;                   // bb4[9]: scope 3 at $DIR/retag.rs:34:17: 34:18
-        Retag(_10);                      // bb4[10]: scope 3 at $DIR/retag.rs:34:17: 34:18
-        StorageLive(_11);                // bb4[11]: scope 4 at $DIR/retag.rs:36:13: 36:15
-        StorageLive(_12);                // bb4[12]: scope 4 at $DIR/retag.rs:36:18: 36:29
-        _12 = &raw mut (*_10);           // bb4[13]: scope 4 at $DIR/retag.rs:36:18: 36:19
-        Retag([raw] _12);                // bb4[14]: scope 4 at $DIR/retag.rs:36:18: 36:19
-        _11 = _12;                       // bb4[15]: scope 4 at $DIR/retag.rs:36:18: 36:29
-        StorageDead(_12);                // bb4[16]: scope 4 at $DIR/retag.rs:36:29: 36:30
-        _2 = const ();                   // bb4[17]: scope 1 at $DIR/retag.rs:31:5: 37:6
+        StorageDead(_5);                 // scope 1 at $DIR/retag.rs:32:36: 32:37
+        StorageLive(_8);                 // scope 2 at $DIR/retag.rs:33:13: 33:14
+        StorageLive(_9);                 // scope 2 at $DIR/retag.rs:33:19: 33:20
+        _9 = move _3;                    // scope 2 at $DIR/retag.rs:33:19: 33:20
+        Retag(_9);                       // scope 2 at $DIR/retag.rs:33:19: 33:20
+        _8 = &mut (*_9);                 // scope 2 at $DIR/retag.rs:33:19: 33:20
+        Retag(_8);                       // scope 2 at $DIR/retag.rs:33:19: 33:20
+        StorageDead(_9);                 // scope 2 at $DIR/retag.rs:33:22: 33:23
+        StorageLive(_10);                // scope 3 at $DIR/retag.rs:34:13: 34:14
+        _10 = move _8;                   // scope 3 at $DIR/retag.rs:34:17: 34:18
+        Retag(_10);                      // scope 3 at $DIR/retag.rs:34:17: 34:18
+        StorageLive(_11);                // scope 4 at $DIR/retag.rs:36:13: 36:15
+        StorageLive(_12);                // scope 4 at $DIR/retag.rs:36:18: 36:29
+        _12 = &raw mut (*_10);           // scope 4 at $DIR/retag.rs:36:18: 36:19
+        Retag([raw] _12);                // scope 4 at $DIR/retag.rs:36:18: 36:19
+        _11 = _12;                       // scope 4 at $DIR/retag.rs:36:18: 36:29
+        StorageDead(_12);                // scope 4 at $DIR/retag.rs:36:29: 36:30
+        _2 = const ();                   // scope 1 at $DIR/retag.rs:31:5: 37:6
                                          // ty::Const
                                          // + ty: ()
                                          // + val: Value(Scalar(<ZST>))
                                          // mir::Constant
                                          // + span: $DIR/retag.rs:31:5: 37:6
                                          // + literal: Const { ty: (), val: Value(Scalar(<ZST>)) }
-        StorageDead(_11);                // bb4[18]: scope 4 at $DIR/retag.rs:37:5: 37:6
-        StorageDead(_10);                // bb4[19]: scope 3 at $DIR/retag.rs:37:5: 37:6
-        StorageDead(_8);                 // bb4[20]: scope 2 at $DIR/retag.rs:37:5: 37:6
-        StorageDead(_3);                 // bb4[21]: scope 1 at $DIR/retag.rs:37:5: 37:6
-        StorageDead(_2);                 // bb4[22]: scope 1 at $DIR/retag.rs:37:5: 37:6
-        StorageLive(_13);                // bb4[23]: scope 1 at $DIR/retag.rs:40:9: 40:10
-        StorageLive(_14);                // bb4[24]: scope 1 at $DIR/retag.rs:40:31: 43:6
-        _14 = [closure@main::{{closure}}#0]; // bb4[25]: scope 1 at $DIR/retag.rs:40:31: 43:6
+        StorageDead(_11);                // scope 4 at $DIR/retag.rs:37:5: 37:6
+        StorageDead(_10);                // scope 3 at $DIR/retag.rs:37:5: 37:6
+        StorageDead(_8);                 // scope 2 at $DIR/retag.rs:37:5: 37:6
+        StorageDead(_3);                 // scope 1 at $DIR/retag.rs:37:5: 37:6
+        StorageDead(_2);                 // scope 1 at $DIR/retag.rs:37:5: 37:6
+        StorageLive(_13);                // scope 1 at $DIR/retag.rs:40:9: 40:10
+        StorageLive(_14);                // scope 1 at $DIR/retag.rs:40:31: 43:6
+        _14 = [closure@main::{{closure}}#0]; // scope 1 at $DIR/retag.rs:40:31: 43:6
                                          // closure
                                          // + def_id: DefId(0:14 ~ retag[317d]::main[0]::{{closure}}[0])
                                          // + substs: [
@@ -147,53 +147,53 @@ fn main() -> () {
                                          //     for<'r> extern "rust-call" fn((&'r i32,)) -> &'r i32,
                                          //     (),
                                          // ]
-        Retag(_14);                      // bb4[26]: scope 1 at $DIR/retag.rs:40:31: 43:6
-        _13 = move _14 as for<'r> fn(&'r i32) -> &'r i32 (Pointer(ClosureFnPointer(Normal))); // bb4[27]: scope 1 at $DIR/retag.rs:40:31: 43:6
-        StorageDead(_14);                // bb4[28]: scope 1 at $DIR/retag.rs:43:5: 43:6
-        StorageLive(_15);                // bb4[29]: scope 6 at $DIR/retag.rs:44:9: 44:11
-        StorageLive(_16);                // bb4[30]: scope 6 at $DIR/retag.rs:44:14: 44:15
-        _16 = _13;                       // bb4[31]: scope 6 at $DIR/retag.rs:44:14: 44:15
-        StorageLive(_17);                // bb4[32]: scope 6 at $DIR/retag.rs:44:16: 44:18
-        StorageLive(_18);                // bb4[33]: scope 6 at $DIR/retag.rs:44:16: 44:18
-        _18 = &_1;                       // bb4[34]: scope 6 at $DIR/retag.rs:44:16: 44:18
-        Retag(_18);                      // bb4[35]: scope 6 at $DIR/retag.rs:44:16: 44:18
-        _17 = &(*_18);                   // bb4[36]: scope 6 at $DIR/retag.rs:44:16: 44:18
-        Retag(_17);                      // bb4[37]: scope 6 at $DIR/retag.rs:44:16: 44:18
-        _15 = move _16(move _17) -> bb5; // bb4[38]: scope 6 at $DIR/retag.rs:44:14: 44:19
+        Retag(_14);                      // scope 1 at $DIR/retag.rs:40:31: 43:6
+        _13 = move _14 as for<'r> fn(&'r i32) -> &'r i32 (Pointer(ClosureFnPointer(Normal))); // scope 1 at $DIR/retag.rs:40:31: 43:6
+        StorageDead(_14);                // scope 1 at $DIR/retag.rs:43:5: 43:6
+        StorageLive(_15);                // scope 6 at $DIR/retag.rs:44:9: 44:11
+        StorageLive(_16);                // scope 6 at $DIR/retag.rs:44:14: 44:15
+        _16 = _13;                       // scope 6 at $DIR/retag.rs:44:14: 44:15
+        StorageLive(_17);                // scope 6 at $DIR/retag.rs:44:16: 44:18
+        StorageLive(_18);                // scope 6 at $DIR/retag.rs:44:16: 44:18
+        _18 = &_1;                       // scope 6 at $DIR/retag.rs:44:16: 44:18
+        Retag(_18);                      // scope 6 at $DIR/retag.rs:44:16: 44:18
+        _17 = &(*_18);                   // scope 6 at $DIR/retag.rs:44:16: 44:18
+        Retag(_17);                      // scope 6 at $DIR/retag.rs:44:16: 44:18
+        _15 = move _16(move _17) -> bb5; // scope 6 at $DIR/retag.rs:44:14: 44:19
     }
 
     bb5: {
-        Retag(_15);                      // bb5[0]: scope 6 at $DIR/retag.rs:44:14: 44:19
-        StorageDead(_17);                // bb5[1]: scope 6 at $DIR/retag.rs:44:18: 44:19
-        StorageDead(_16);                // bb5[2]: scope 6 at $DIR/retag.rs:44:18: 44:19
-        StorageDead(_18);                // bb5[3]: scope 6 at $DIR/retag.rs:44:19: 44:20
-        StorageLive(_19);                // bb5[4]: scope 7 at $DIR/retag.rs:47:5: 47:24
-        StorageLive(_20);                // bb5[5]: scope 7 at $DIR/retag.rs:47:5: 47:12
-        StorageLive(_21);                // bb5[6]: scope 7 at $DIR/retag.rs:47:5: 47:12
-        _21 = Test(const 0i32);          // bb5[7]: scope 7 at $DIR/retag.rs:47:5: 47:12
+        Retag(_15);                      // scope 6 at $DIR/retag.rs:44:14: 44:19
+        StorageDead(_17);                // scope 6 at $DIR/retag.rs:44:18: 44:19
+        StorageDead(_16);                // scope 6 at $DIR/retag.rs:44:18: 44:19
+        StorageDead(_18);                // scope 6 at $DIR/retag.rs:44:19: 44:20
+        StorageLive(_19);                // scope 7 at $DIR/retag.rs:47:5: 47:24
+        StorageLive(_20);                // scope 7 at $DIR/retag.rs:47:5: 47:12
+        StorageLive(_21);                // scope 7 at $DIR/retag.rs:47:5: 47:12
+        _21 = Test(const 0i32);          // scope 7 at $DIR/retag.rs:47:5: 47:12
                                          // ty::Const
                                          // + ty: i32
                                          // + val: Value(Scalar(0x00000000))
                                          // mir::Constant
                                          // + span: $DIR/retag.rs:47:10: 47:11
                                          // + literal: Const { ty: i32, val: Value(Scalar(0x00000000)) }
-        _20 = &_21;                      // bb5[8]: scope 7 at $DIR/retag.rs:47:5: 47:12
-        Retag(_20);                      // bb5[9]: scope 7 at $DIR/retag.rs:47:5: 47:12
-        StorageLive(_22);                // bb5[10]: scope 7 at $DIR/retag.rs:47:21: 47:23
-        StorageLive(_23);                // bb5[11]: scope 7 at $DIR/retag.rs:47:21: 47:23
-        _27 = const main::promoted[0];   // bb5[12]: scope 7 at $DIR/retag.rs:47:21: 47:23
+        _20 = &_21;                      // scope 7 at $DIR/retag.rs:47:5: 47:12
+        Retag(_20);                      // scope 7 at $DIR/retag.rs:47:5: 47:12
+        StorageLive(_22);                // scope 7 at $DIR/retag.rs:47:21: 47:23
+        StorageLive(_23);                // scope 7 at $DIR/retag.rs:47:21: 47:23
+        _27 = const main::promoted[0];   // scope 7 at $DIR/retag.rs:47:21: 47:23
                                          // ty::Const
                                          // + ty: &i32
                                          // + val: Unevaluated(DefId(0:13 ~ retag[317d]::main[0]), [], Some(promoted[0]))
                                          // mir::Constant
                                          // + span: $DIR/retag.rs:47:21: 47:23
                                          // + literal: Const { ty: &i32, val: Unevaluated(DefId(0:13 ~ retag[317d]::main[0]), [], Some(promoted[0])) }
-        Retag(_27);                      // bb5[13]: scope 7 at $DIR/retag.rs:47:21: 47:23
-        _23 = &(*_27);                   // bb5[14]: scope 7 at $DIR/retag.rs:47:21: 47:23
-        Retag(_23);                      // bb5[15]: scope 7 at $DIR/retag.rs:47:21: 47:23
-        _22 = &(*_23);                   // bb5[16]: scope 7 at $DIR/retag.rs:47:21: 47:23
-        Retag(_22);                      // bb5[17]: scope 7 at $DIR/retag.rs:47:21: 47:23
-        _19 = const Test::foo_shr(move _20, move _22) -> [return: bb6, unwind: bb7]; // bb5[18]: scope 7 at $DIR/retag.rs:47:5: 47:24
+        Retag(_27);                      // scope 7 at $DIR/retag.rs:47:21: 47:23
+        _23 = &(*_27);                   // scope 7 at $DIR/retag.rs:47:21: 47:23
+        Retag(_23);                      // scope 7 at $DIR/retag.rs:47:21: 47:23
+        _22 = &(*_23);                   // scope 7 at $DIR/retag.rs:47:21: 47:23
+        Retag(_22);                      // scope 7 at $DIR/retag.rs:47:21: 47:23
+        _19 = const Test::foo_shr(move _20, move _22) -> [return: bb6, unwind: bb7]; // scope 7 at $DIR/retag.rs:47:5: 47:24
                                          // ty::Const
                                          // + ty: for<'r, 'x> fn(&'r Test, &'x i32) -> &'x i32 {Test::foo_shr}
                                          // + val: Value(Scalar(<ZST>))
@@ -203,37 +203,37 @@ fn main() -> () {
     }
 
     bb6: {
-        Retag(_19);                      // bb6[0]: scope 7 at $DIR/retag.rs:47:5: 47:24
-        StorageDead(_22);                // bb6[1]: scope 7 at $DIR/retag.rs:47:23: 47:24
-        StorageDead(_20);                // bb6[2]: scope 7 at $DIR/retag.rs:47:23: 47:24
-        StorageDead(_23);                // bb6[3]: scope 7 at $DIR/retag.rs:47:24: 47:25
-        drop(_21) -> [return: bb8, unwind: bb1]; // bb6[4]: scope 7 at $DIR/retag.rs:47:24: 47:25
+        Retag(_19);                      // scope 7 at $DIR/retag.rs:47:5: 47:24
+        StorageDead(_22);                // scope 7 at $DIR/retag.rs:47:23: 47:24
+        StorageDead(_20);                // scope 7 at $DIR/retag.rs:47:23: 47:24
+        StorageDead(_23);                // scope 7 at $DIR/retag.rs:47:24: 47:25
+        drop(_21) -> [return: bb8, unwind: bb1]; // scope 7 at $DIR/retag.rs:47:24: 47:25
     }
 
     bb7 (cleanup): {
-        drop(_21) -> bb1;                // bb7[0]: scope 7 at $DIR/retag.rs:47:24: 47:25
+        drop(_21) -> bb1;                // scope 7 at $DIR/retag.rs:47:24: 47:25
     }
 
     bb8: {
-        StorageDead(_21);                // bb8[0]: scope 7 at $DIR/retag.rs:47:24: 47:25
-        StorageDead(_19);                // bb8[1]: scope 7 at $DIR/retag.rs:47:24: 47:25
-        StorageLive(_25);                // bb8[2]: scope 7 at $DIR/retag.rs:50:9: 50:11
-        StorageLive(_26);                // bb8[3]: scope 7 at $DIR/retag.rs:50:14: 50:28
-        _26 = &raw const (*_15);         // bb8[4]: scope 7 at $DIR/retag.rs:50:14: 50:16
-        Retag([raw] _26);                // bb8[5]: scope 7 at $DIR/retag.rs:50:14: 50:16
-        _25 = _26;                       // bb8[6]: scope 7 at $DIR/retag.rs:50:14: 50:28
-        StorageDead(_26);                // bb8[7]: scope 7 at $DIR/retag.rs:50:28: 50:29
-        _0 = const ();                   // bb8[8]: scope 0 at $DIR/retag.rs:29:11: 51:2
+        StorageDead(_21);                // scope 7 at $DIR/retag.rs:47:24: 47:25
+        StorageDead(_19);                // scope 7 at $DIR/retag.rs:47:24: 47:25
+        StorageLive(_25);                // scope 7 at $DIR/retag.rs:50:9: 50:11
+        StorageLive(_26);                // scope 7 at $DIR/retag.rs:50:14: 50:28
+        _26 = &raw const (*_15);         // scope 7 at $DIR/retag.rs:50:14: 50:16
+        Retag([raw] _26);                // scope 7 at $DIR/retag.rs:50:14: 50:16
+        _25 = _26;                       // scope 7 at $DIR/retag.rs:50:14: 50:28
+        StorageDead(_26);                // scope 7 at $DIR/retag.rs:50:28: 50:29
+        _0 = const ();                   // scope 0 at $DIR/retag.rs:29:11: 51:2
                                          // ty::Const
                                          // + ty: ()
                                          // + val: Value(Scalar(<ZST>))
                                          // mir::Constant
                                          // + span: $DIR/retag.rs:29:11: 51:2
                                          // + literal: Const { ty: (), val: Value(Scalar(<ZST>)) }
-        StorageDead(_25);                // bb8[9]: scope 7 at $DIR/retag.rs:51:1: 51:2
-        StorageDead(_15);                // bb8[10]: scope 6 at $DIR/retag.rs:51:1: 51:2
-        StorageDead(_13);                // bb8[11]: scope 1 at $DIR/retag.rs:51:1: 51:2
-        StorageDead(_1);                 // bb8[12]: scope 0 at $DIR/retag.rs:51:1: 51:2
-        return;                          // bb8[13]: scope 0 at $DIR/retag.rs:51:2: 51:2
+        StorageDead(_25);                // scope 7 at $DIR/retag.rs:51:1: 51:2
+        StorageDead(_15);                // scope 6 at $DIR/retag.rs:51:1: 51:2
+        StorageDead(_13);                // scope 1 at $DIR/retag.rs:51:1: 51:2
+        StorageDead(_1);                 // scope 0 at $DIR/retag.rs:51:1: 51:2
+        return;                          // scope 0 at $DIR/retag.rs:51:2: 51:2
     }
 }
diff --git a/src/test/mir-opt/retag/rustc.ptr-drop_in_place.Test.SimplifyCfg-make_shim.after.mir b/src/test/mir-opt/retag/rustc.ptr-drop_in_place.Test.SimplifyCfg-make_shim.after.mir
index 306d30587d6..995c8c141c6 100644
--- a/src/test/mir-opt/retag/rustc.ptr-drop_in_place.Test.SimplifyCfg-make_shim.after.mir
+++ b/src/test/mir-opt/retag/rustc.ptr-drop_in_place.Test.SimplifyCfg-make_shim.after.mir
@@ -6,9 +6,9 @@ fn std::intrinsics::drop_in_place(_1: *mut Test) -> () {
     let mut _3: ();                      // in scope 0 at $SRC_DIR/libcore/ptr/mod.rs:LL:COL
 
     bb0: {
-        Retag([raw] _1);                 // bb0[0]: scope 0 at $SRC_DIR/libcore/ptr/mod.rs:LL:COL
-        _2 = &mut (*_1);                 // bb0[1]: scope 0 at $SRC_DIR/libcore/ptr/mod.rs:LL:COL
-        _3 = const <Test as std::ops::Drop>::drop(move _2) -> bb1; // bb0[2]: scope 0 at $SRC_DIR/libcore/ptr/mod.rs:LL:COL
+        Retag([raw] _1);                 // scope 0 at $SRC_DIR/libcore/ptr/mod.rs:LL:COL
+        _2 = &mut (*_1);                 // scope 0 at $SRC_DIR/libcore/ptr/mod.rs:LL:COL
+        _3 = const <Test as std::ops::Drop>::drop(move _2) -> bb1; // scope 0 at $SRC_DIR/libcore/ptr/mod.rs:LL:COL
                                          // ty::Const
                                          // + ty: for<'r> fn(&'r mut Test) {<Test as std::ops::Drop>::drop}
                                          // + val: Value(Scalar(<ZST>))
@@ -18,6 +18,6 @@ fn std::intrinsics::drop_in_place(_1: *mut Test) -> () {
     }
 
     bb1: {
-        return;                          // bb1[0]: scope 0 at $SRC_DIR/libcore/ptr/mod.rs:LL:COL
+        return;                          // scope 0 at $SRC_DIR/libcore/ptr/mod.rs:LL:COL
     }
 }
diff --git a/src/test/mir-opt/retag/rustc.{{impl}}-foo.SimplifyCfg-elaborate-drops.after.mir b/src/test/mir-opt/retag/rustc.{{impl}}-foo.SimplifyCfg-elaborate-drops.after.mir
index 265a4bdd822..f9ed3932d33 100644
--- a/src/test/mir-opt/retag/rustc.{{impl}}-foo.SimplifyCfg-elaborate-drops.after.mir
+++ b/src/test/mir-opt/retag/rustc.{{impl}}-foo.SimplifyCfg-elaborate-drops.after.mir
@@ -7,14 +7,14 @@ fn <impl at $DIR/retag.rs:11:1: 19:2>::foo(_1: &Test, _2: &mut i32) -> &mut i32
     let mut _3: &mut i32;                // in scope 0 at $DIR/retag.rs:14:9: 14:10
 
     bb0: {
-        Retag([fn entry] _1);            // bb0[0]: scope 0 at $DIR/retag.rs:13:5: 15:6
-        Retag([fn entry] _2);            // bb0[1]: scope 0 at $DIR/retag.rs:13:5: 15:6
-        StorageLive(_3);                 // bb0[2]: scope 0 at $DIR/retag.rs:14:9: 14:10
-        _3 = &mut (*_2);                 // bb0[3]: scope 0 at $DIR/retag.rs:14:9: 14:10
-        Retag(_3);                       // bb0[4]: scope 0 at $DIR/retag.rs:14:9: 14:10
-        _0 = &mut (*_3);                 // bb0[5]: scope 0 at $DIR/retag.rs:14:9: 14:10
-        Retag(_0);                       // bb0[6]: scope 0 at $DIR/retag.rs:14:9: 14:10
-        StorageDead(_3);                 // bb0[7]: scope 0 at $DIR/retag.rs:15:5: 15:6
-        return;                          // bb0[8]: scope 0 at $DIR/retag.rs:15:6: 15:6
+        Retag([fn entry] _1);            // scope 0 at $DIR/retag.rs:13:5: 15:6
+        Retag([fn entry] _2);            // scope 0 at $DIR/retag.rs:13:5: 15:6
+        StorageLive(_3);                 // scope 0 at $DIR/retag.rs:14:9: 14:10
+        _3 = &mut (*_2);                 // scope 0 at $DIR/retag.rs:14:9: 14:10
+        Retag(_3);                       // scope 0 at $DIR/retag.rs:14:9: 14:10
+        _0 = &mut (*_3);                 // scope 0 at $DIR/retag.rs:14:9: 14:10
+        Retag(_0);                       // scope 0 at $DIR/retag.rs:14:9: 14:10
+        StorageDead(_3);                 // scope 0 at $DIR/retag.rs:15:5: 15:6
+        return;                          // scope 0 at $DIR/retag.rs:15:6: 15:6
     }
 }
diff --git a/src/test/mir-opt/retag/rustc.{{impl}}-foo_shr.SimplifyCfg-elaborate-drops.after.mir b/src/test/mir-opt/retag/rustc.{{impl}}-foo_shr.SimplifyCfg-elaborate-drops.after.mir
index edf1058e457..87a8603a931 100644
--- a/src/test/mir-opt/retag/rustc.{{impl}}-foo_shr.SimplifyCfg-elaborate-drops.after.mir
+++ b/src/test/mir-opt/retag/rustc.{{impl}}-foo_shr.SimplifyCfg-elaborate-drops.after.mir
@@ -6,10 +6,10 @@ fn <impl at $DIR/retag.rs:11:1: 19:2>::foo_shr(_1: &Test, _2: &i32) -> &i32 {
     let mut _0: &i32;                    // return place in scope 0 at $DIR/retag.rs:16:42: 16:49
 
     bb0: {
-        Retag([fn entry] _1);            // bb0[0]: scope 0 at $DIR/retag.rs:16:5: 18:6
-        Retag([fn entry] _2);            // bb0[1]: scope 0 at $DIR/retag.rs:16:5: 18:6
-        _0 = _2;                         // bb0[2]: scope 0 at $DIR/retag.rs:17:9: 17:10
-        Retag(_0);                       // bb0[3]: scope 0 at $DIR/retag.rs:17:9: 17:10
-        return;                          // bb0[4]: scope 0 at $DIR/retag.rs:18:6: 18:6
+        Retag([fn entry] _1);            // scope 0 at $DIR/retag.rs:16:5: 18:6
+        Retag([fn entry] _2);            // scope 0 at $DIR/retag.rs:16:5: 18:6
+        _0 = _2;                         // scope 0 at $DIR/retag.rs:17:9: 17:10
+        Retag(_0);                       // scope 0 at $DIR/retag.rs:17:9: 17:10
+        return;                          // scope 0 at $DIR/retag.rs:18:6: 18:6
     }
 }
diff --git a/src/test/mir-opt/simple-match/32bit/rustc.match_bool.mir_map.0.mir b/src/test/mir-opt/simple-match/32bit/rustc.match_bool.mir_map.0.mir
index b720255893a..3a7d6a7ca3c 100644
--- a/src/test/mir-opt/simple-match/32bit/rustc.match_bool.mir_map.0.mir
+++ b/src/test/mir-opt/simple-match/32bit/rustc.match_bool.mir_map.0.mir
@@ -5,45 +5,45 @@ fn match_bool(_1: bool) -> usize {
     let mut _0: usize;                   // return place in scope 0 at $DIR/simple-match.rs:5:27: 5:32
 
     bb0: {
-        FakeRead(ForMatchedPlace, _1);   // bb0[0]: scope 0 at $DIR/simple-match.rs:6:11: 6:12
-        switchInt(_1) -> [false: bb3, otherwise: bb2]; // bb0[1]: scope 0 at $DIR/simple-match.rs:7:9: 7:13
+        FakeRead(ForMatchedPlace, _1);   // scope 0 at $DIR/simple-match.rs:6:11: 6:12
+        switchInt(_1) -> [false: bb3, otherwise: bb2]; // scope 0 at $DIR/simple-match.rs:7:9: 7:13
     }
 
     bb1 (cleanup): {
-        resume;                          // bb1[0]: scope 0 at $DIR/simple-match.rs:5:1: 10:2
+        resume;                          // scope 0 at $DIR/simple-match.rs:5:1: 10:2
     }
 
     bb2: {
-        falseEdges -> [real: bb4, imaginary: bb3]; // bb2[0]: scope 0 at $DIR/simple-match.rs:7:9: 7:13
+        falseEdges -> [real: bb4, imaginary: bb3]; // scope 0 at $DIR/simple-match.rs:7:9: 7:13
     }
 
     bb3: {
-        _0 = const 20usize;              // bb3[0]: scope 0 at $DIR/simple-match.rs:8:14: 8:16
+        _0 = const 20usize;              // scope 0 at $DIR/simple-match.rs:8:14: 8:16
                                          // ty::Const
                                          // + ty: usize
                                          // + val: Value(Scalar(0x00000014))
                                          // mir::Constant
                                          // + span: $DIR/simple-match.rs:8:14: 8:16
                                          // + literal: Const { ty: usize, val: Value(Scalar(0x00000014)) }
-        goto -> bb5;                     // bb3[1]: scope 0 at $DIR/simple-match.rs:6:5: 9:6
+        goto -> bb5;                     // scope 0 at $DIR/simple-match.rs:6:5: 9:6
     }
 
     bb4: {
-        _0 = const 10usize;              // bb4[0]: scope 0 at $DIR/simple-match.rs:7:17: 7:19
+        _0 = const 10usize;              // scope 0 at $DIR/simple-match.rs:7:17: 7:19
                                          // ty::Const
                                          // + ty: usize
                                          // + val: Value(Scalar(0x0000000a))
                                          // mir::Constant
                                          // + span: $DIR/simple-match.rs:7:17: 7:19
                                          // + literal: Const { ty: usize, val: Value(Scalar(0x0000000a)) }
-        goto -> bb5;                     // bb4[1]: scope 0 at $DIR/simple-match.rs:6:5: 9:6
+        goto -> bb5;                     // scope 0 at $DIR/simple-match.rs:6:5: 9:6
     }
 
     bb5: {
-        goto -> bb6;                     // bb5[0]: scope 0 at $DIR/simple-match.rs:10:2: 10:2
+        goto -> bb6;                     // scope 0 at $DIR/simple-match.rs:10:2: 10:2
     }
 
     bb6: {
-        return;                          // bb6[0]: scope 0 at $DIR/simple-match.rs:10:2: 10:2
+        return;                          // scope 0 at $DIR/simple-match.rs:10:2: 10:2
     }
 }
diff --git a/src/test/mir-opt/simple-match/64bit/rustc.match_bool.mir_map.0.mir b/src/test/mir-opt/simple-match/64bit/rustc.match_bool.mir_map.0.mir
index f2fe72d0c11..170181177b2 100644
--- a/src/test/mir-opt/simple-match/64bit/rustc.match_bool.mir_map.0.mir
+++ b/src/test/mir-opt/simple-match/64bit/rustc.match_bool.mir_map.0.mir
@@ -5,45 +5,45 @@ fn match_bool(_1: bool) -> usize {
     let mut _0: usize;                   // return place in scope 0 at $DIR/simple-match.rs:5:27: 5:32
 
     bb0: {
-        FakeRead(ForMatchedPlace, _1);   // bb0[0]: scope 0 at $DIR/simple-match.rs:6:11: 6:12
-        switchInt(_1) -> [false: bb3, otherwise: bb2]; // bb0[1]: scope 0 at $DIR/simple-match.rs:7:9: 7:13
+        FakeRead(ForMatchedPlace, _1);   // scope 0 at $DIR/simple-match.rs:6:11: 6:12
+        switchInt(_1) -> [false: bb3, otherwise: bb2]; // scope 0 at $DIR/simple-match.rs:7:9: 7:13
     }
 
     bb1 (cleanup): {
-        resume;                          // bb1[0]: scope 0 at $DIR/simple-match.rs:5:1: 10:2
+        resume;                          // scope 0 at $DIR/simple-match.rs:5:1: 10:2
     }
 
     bb2: {
-        falseEdges -> [real: bb4, imaginary: bb3]; // bb2[0]: scope 0 at $DIR/simple-match.rs:7:9: 7:13
+        falseEdges -> [real: bb4, imaginary: bb3]; // scope 0 at $DIR/simple-match.rs:7:9: 7:13
     }
 
     bb3: {
-        _0 = const 20usize;              // bb3[0]: scope 0 at $DIR/simple-match.rs:8:14: 8:16
+        _0 = const 20usize;              // scope 0 at $DIR/simple-match.rs:8:14: 8:16
                                          // ty::Const
                                          // + ty: usize
                                          // + val: Value(Scalar(0x0000000000000014))
                                          // mir::Constant
                                          // + span: $DIR/simple-match.rs:8:14: 8:16
                                          // + literal: Const { ty: usize, val: Value(Scalar(0x0000000000000014)) }
-        goto -> bb5;                     // bb3[1]: scope 0 at $DIR/simple-match.rs:6:5: 9:6
+        goto -> bb5;                     // scope 0 at $DIR/simple-match.rs:6:5: 9:6
     }
 
     bb4: {
-        _0 = const 10usize;              // bb4[0]: scope 0 at $DIR/simple-match.rs:7:17: 7:19
+        _0 = const 10usize;              // scope 0 at $DIR/simple-match.rs:7:17: 7:19
                                          // ty::Const
                                          // + ty: usize
                                          // + val: Value(Scalar(0x000000000000000a))
                                          // mir::Constant
                                          // + span: $DIR/simple-match.rs:7:17: 7:19
                                          // + literal: Const { ty: usize, val: Value(Scalar(0x000000000000000a)) }
-        goto -> bb5;                     // bb4[1]: scope 0 at $DIR/simple-match.rs:6:5: 9:6
+        goto -> bb5;                     // scope 0 at $DIR/simple-match.rs:6:5: 9:6
     }
 
     bb5: {
-        goto -> bb6;                     // bb5[0]: scope 0 at $DIR/simple-match.rs:10:2: 10:2
+        goto -> bb6;                     // scope 0 at $DIR/simple-match.rs:10:2: 10:2
     }
 
     bb6: {
-        return;                          // bb6[0]: scope 0 at $DIR/simple-match.rs:10:2: 10:2
+        return;                          // scope 0 at $DIR/simple-match.rs:10:2: 10:2
     }
 }
diff --git a/src/test/mir-opt/simplify-arm-identity/rustc.main.SimplifyArmIdentity.diff b/src/test/mir-opt/simplify-arm-identity/rustc.main.SimplifyArmIdentity.diff
index 2caa6235d54..b2517cb7012 100644
--- a/src/test/mir-opt/simplify-arm-identity/rustc.main.SimplifyArmIdentity.diff
+++ b/src/test/mir-opt/simplify-arm-identity/rustc.main.SimplifyArmIdentity.diff
@@ -18,54 +18,54 @@
       }
   
       bb0: {
-          StorageLive(_1);                 // bb0[0]: scope 0 at $DIR/simplify-arm-identity.rs:17:9: 17:10
-          ((_1 as Foo).0: u8) = const 0u8; // bb0[1]: scope 0 at $DIR/simplify-arm-identity.rs:17:18: 17:29
+          StorageLive(_1);                 // scope 0 at $DIR/simplify-arm-identity.rs:17:9: 17:10
+          ((_1 as Foo).0: u8) = const 0u8; // scope 0 at $DIR/simplify-arm-identity.rs:17:18: 17:29
                                            // ty::Const
                                            // + ty: u8
                                            // + val: Value(Scalar(0x00))
                                            // mir::Constant
                                            // + span: $DIR/simplify-arm-identity.rs:17:27: 17:28
                                            // + literal: Const { ty: u8, val: Value(Scalar(0x00)) }
-          discriminant(_1) = 0;            // bb0[2]: scope 0 at $DIR/simplify-arm-identity.rs:17:18: 17:29
-          StorageLive(_2);                 // bb0[3]: scope 1 at $DIR/simplify-arm-identity.rs:18:18: 21:6
-          _3 = discriminant(_1);           // bb0[4]: scope 1 at $DIR/simplify-arm-identity.rs:19:9: 19:20
-          switchInt(move _3) -> [0isize: bb3, 1isize: bb1, otherwise: bb2]; // bb0[5]: scope 1 at $DIR/simplify-arm-identity.rs:19:9: 19:20
+          discriminant(_1) = 0;            // scope 0 at $DIR/simplify-arm-identity.rs:17:18: 17:29
+          StorageLive(_2);                 // scope 1 at $DIR/simplify-arm-identity.rs:18:18: 21:6
+          _3 = discriminant(_1);           // scope 1 at $DIR/simplify-arm-identity.rs:19:9: 19:20
+          switchInt(move _3) -> [0isize: bb3, 1isize: bb1, otherwise: bb2]; // scope 1 at $DIR/simplify-arm-identity.rs:19:9: 19:20
       }
   
       bb1: {
-          ((_2 as Foo).0: u8) = const 0u8; // bb1[0]: scope 1 at $DIR/simplify-arm-identity.rs:20:21: 20:32
+          ((_2 as Foo).0: u8) = const 0u8; // scope 1 at $DIR/simplify-arm-identity.rs:20:21: 20:32
                                            // ty::Const
                                            // + ty: u8
                                            // + val: Value(Scalar(0x00))
                                            // mir::Constant
                                            // + span: $DIR/simplify-arm-identity.rs:20:30: 20:31
                                            // + literal: Const { ty: u8, val: Value(Scalar(0x00)) }
-          discriminant(_2) = 0;            // bb1[1]: scope 1 at $DIR/simplify-arm-identity.rs:20:21: 20:32
-          goto -> bb4;                     // bb1[2]: scope 1 at $DIR/simplify-arm-identity.rs:18:18: 21:6
+          discriminant(_2) = 0;            // scope 1 at $DIR/simplify-arm-identity.rs:20:21: 20:32
+          goto -> bb4;                     // scope 1 at $DIR/simplify-arm-identity.rs:18:18: 21:6
       }
   
       bb2: {
-          unreachable;                     // bb2[0]: scope 1 at $DIR/simplify-arm-identity.rs:18:24: 18:25
+          unreachable;                     // scope 1 at $DIR/simplify-arm-identity.rs:18:24: 18:25
       }
   
       bb3: {
-          _4 = ((_1 as Foo).0: u8);        // bb3[0]: scope 1 at $DIR/simplify-arm-identity.rs:19:18: 19:19
-          ((_2 as Foo).0: u8) = move _4;   // bb3[1]: scope 3 at $DIR/simplify-arm-identity.rs:19:24: 19:35
-          discriminant(_2) = 0;            // bb3[2]: scope 3 at $DIR/simplify-arm-identity.rs:19:24: 19:35
-          goto -> bb4;                     // bb3[3]: scope 1 at $DIR/simplify-arm-identity.rs:18:18: 21:6
+          _4 = ((_1 as Foo).0: u8);        // scope 1 at $DIR/simplify-arm-identity.rs:19:18: 19:19
+          ((_2 as Foo).0: u8) = move _4;   // scope 3 at $DIR/simplify-arm-identity.rs:19:24: 19:35
+          discriminant(_2) = 0;            // scope 3 at $DIR/simplify-arm-identity.rs:19:24: 19:35
+          goto -> bb4;                     // scope 1 at $DIR/simplify-arm-identity.rs:18:18: 21:6
       }
   
       bb4: {
-          StorageDead(_2);                 // bb4[0]: scope 1 at $DIR/simplify-arm-identity.rs:21:6: 21:7
-          _0 = const ();                   // bb4[1]: scope 0 at $DIR/simplify-arm-identity.rs:16:11: 22:2
+          StorageDead(_2);                 // scope 1 at $DIR/simplify-arm-identity.rs:21:6: 21:7
+          _0 = const ();                   // scope 0 at $DIR/simplify-arm-identity.rs:16:11: 22:2
                                            // ty::Const
                                            // + ty: ()
                                            // + val: Value(Scalar(<ZST>))
                                            // mir::Constant
                                            // + span: $DIR/simplify-arm-identity.rs:16:11: 22:2
                                            // + literal: Const { ty: (), val: Value(Scalar(<ZST>)) }
-          StorageDead(_1);                 // bb4[2]: scope 0 at $DIR/simplify-arm-identity.rs:22:1: 22:2
-          return;                          // bb4[3]: scope 0 at $DIR/simplify-arm-identity.rs:22:2: 22:2
+          StorageDead(_1);                 // scope 0 at $DIR/simplify-arm-identity.rs:22:1: 22:2
+          return;                          // scope 0 at $DIR/simplify-arm-identity.rs:22:2: 22:2
       }
   }
   
diff --git a/src/test/mir-opt/simplify-locals-fixedpoint/rustc.foo.SimplifyLocals.diff b/src/test/mir-opt/simplify-locals-fixedpoint/rustc.foo.SimplifyLocals.diff
index bc59be48eee..f7db14e7165 100644
--- a/src/test/mir-opt/simplify-locals-fixedpoint/rustc.foo.SimplifyLocals.diff
+++ b/src/test/mir-opt/simplify-locals-fixedpoint/rustc.foo.SimplifyLocals.diff
@@ -16,87 +16,87 @@
       }
   
       bb0: {
-          StorageLive(_1);                 // bb0[0]: scope 0 at $DIR/simplify-locals-fixedpoint.rs:4:30: 4:69
-          StorageLive(_2);                 // bb0[1]: scope 0 at $DIR/simplify-locals-fixedpoint.rs:4:31: 4:49
-          discriminant(_2) = 0;            // bb0[2]: scope 0 at $DIR/simplify-locals-fixedpoint.rs:4:31: 4:49
-          StorageLive(_3);                 // bb0[3]: scope 0 at $DIR/simplify-locals-fixedpoint.rs:4:51: 4:68
-          discriminant(_3) = 0;            // bb0[4]: scope 0 at $DIR/simplify-locals-fixedpoint.rs:4:51: 4:68
-          (_1.0: std::option::Option<u8>) = move _2; // bb0[5]: scope 0 at $DIR/simplify-locals-fixedpoint.rs:4:30: 4:69
-          (_1.1: std::option::Option<T>) = move _3; // bb0[6]: scope 0 at $DIR/simplify-locals-fixedpoint.rs:4:30: 4:69
-          StorageDead(_3);                 // bb0[7]: scope 0 at $DIR/simplify-locals-fixedpoint.rs:4:68: 4:69
-          StorageDead(_2);                 // bb0[8]: scope 0 at $DIR/simplify-locals-fixedpoint.rs:4:68: 4:69
-          _5 = discriminant((_1.0: std::option::Option<u8>)); // bb0[9]: scope 0 at $DIR/simplify-locals-fixedpoint.rs:4:13: 4:20
-          switchInt(move _5) -> [1isize: bb2, otherwise: bb1]; // bb0[10]: scope 0 at $DIR/simplify-locals-fixedpoint.rs:4:13: 4:20
+          StorageLive(_1);                 // scope 0 at $DIR/simplify-locals-fixedpoint.rs:4:30: 4:69
+          StorageLive(_2);                 // scope 0 at $DIR/simplify-locals-fixedpoint.rs:4:31: 4:49
+          discriminant(_2) = 0;            // scope 0 at $DIR/simplify-locals-fixedpoint.rs:4:31: 4:49
+          StorageLive(_3);                 // scope 0 at $DIR/simplify-locals-fixedpoint.rs:4:51: 4:68
+          discriminant(_3) = 0;            // scope 0 at $DIR/simplify-locals-fixedpoint.rs:4:51: 4:68
+          (_1.0: std::option::Option<u8>) = move _2; // scope 0 at $DIR/simplify-locals-fixedpoint.rs:4:30: 4:69
+          (_1.1: std::option::Option<T>) = move _3; // scope 0 at $DIR/simplify-locals-fixedpoint.rs:4:30: 4:69
+          StorageDead(_3);                 // scope 0 at $DIR/simplify-locals-fixedpoint.rs:4:68: 4:69
+          StorageDead(_2);                 // scope 0 at $DIR/simplify-locals-fixedpoint.rs:4:68: 4:69
+          _5 = discriminant((_1.0: std::option::Option<u8>)); // scope 0 at $DIR/simplify-locals-fixedpoint.rs:4:13: 4:20
+          switchInt(move _5) -> [1isize: bb2, otherwise: bb1]; // scope 0 at $DIR/simplify-locals-fixedpoint.rs:4:13: 4:20
       }
   
       bb1: {
-          _0 = const ();                   // bb1[0]: scope 0 at $DIR/simplify-locals-fixedpoint.rs:4:5: 8:6
+          _0 = const ();                   // scope 0 at $DIR/simplify-locals-fixedpoint.rs:4:5: 8:6
                                            // ty::Const
                                            // + ty: ()
                                            // + val: Value(Scalar(<ZST>))
                                            // mir::Constant
                                            // + span: $DIR/simplify-locals-fixedpoint.rs:4:5: 8:6
                                            // + literal: Const { ty: (), val: Value(Scalar(<ZST>)) }
-          goto -> bb7;                     // bb1[1]: scope 0 at $DIR/simplify-locals-fixedpoint.rs:4:5: 8:6
+          goto -> bb7;                     // scope 0 at $DIR/simplify-locals-fixedpoint.rs:4:5: 8:6
       }
   
       bb2: {
-          _4 = discriminant((_1.1: std::option::Option<T>)); // bb2[0]: scope 0 at $DIR/simplify-locals-fixedpoint.rs:4:22: 4:26
-          switchInt(move _4) -> [0isize: bb3, otherwise: bb1]; // bb2[1]: scope 0 at $DIR/simplify-locals-fixedpoint.rs:4:22: 4:26
+          _4 = discriminant((_1.1: std::option::Option<T>)); // scope 0 at $DIR/simplify-locals-fixedpoint.rs:4:22: 4:26
+          switchInt(move _4) -> [0isize: bb3, otherwise: bb1]; // scope 0 at $DIR/simplify-locals-fixedpoint.rs:4:22: 4:26
       }
   
       bb3: {
-          StorageLive(_6);                 // bb3[0]: scope 0 at $DIR/simplify-locals-fixedpoint.rs:4:18: 4:19
-          _6 = (((_1.0: std::option::Option<u8>) as Some).0: u8); // bb3[1]: scope 0 at $DIR/simplify-locals-fixedpoint.rs:4:18: 4:19
-          StorageLive(_7);                 // bb3[2]: scope 1 at $DIR/simplify-locals-fixedpoint.rs:5:12: 5:20
-          StorageLive(_8);                 // bb3[3]: scope 1 at $DIR/simplify-locals-fixedpoint.rs:5:12: 5:13
-          _8 = _6;                         // bb3[4]: scope 1 at $DIR/simplify-locals-fixedpoint.rs:5:12: 5:13
-          _7 = Gt(move _8, const 42u8);    // bb3[5]: scope 1 at $DIR/simplify-locals-fixedpoint.rs:5:12: 5:20
+          StorageLive(_6);                 // scope 0 at $DIR/simplify-locals-fixedpoint.rs:4:18: 4:19
+          _6 = (((_1.0: std::option::Option<u8>) as Some).0: u8); // scope 0 at $DIR/simplify-locals-fixedpoint.rs:4:18: 4:19
+          StorageLive(_7);                 // scope 1 at $DIR/simplify-locals-fixedpoint.rs:5:12: 5:20
+          StorageLive(_8);                 // scope 1 at $DIR/simplify-locals-fixedpoint.rs:5:12: 5:13
+          _8 = _6;                         // scope 1 at $DIR/simplify-locals-fixedpoint.rs:5:12: 5:13
+          _7 = Gt(move _8, const 42u8);    // scope 1 at $DIR/simplify-locals-fixedpoint.rs:5:12: 5:20
                                            // ty::Const
                                            // + ty: u8
                                            // + val: Value(Scalar(0x2a))
                                            // mir::Constant
                                            // + span: $DIR/simplify-locals-fixedpoint.rs:5:16: 5:20
                                            // + literal: Const { ty: u8, val: Value(Scalar(0x2a)) }
-          StorageDead(_8);                 // bb3[6]: scope 1 at $DIR/simplify-locals-fixedpoint.rs:5:19: 5:20
-          switchInt(_7) -> [false: bb4, otherwise: bb5]; // bb3[7]: scope 1 at $DIR/simplify-locals-fixedpoint.rs:5:9: 7:10
+          StorageDead(_8);                 // scope 1 at $DIR/simplify-locals-fixedpoint.rs:5:19: 5:20
+          switchInt(_7) -> [false: bb4, otherwise: bb5]; // scope 1 at $DIR/simplify-locals-fixedpoint.rs:5:9: 7:10
       }
   
       bb4: {
-          _0 = const ();                   // bb4[0]: scope 1 at $DIR/simplify-locals-fixedpoint.rs:5:9: 7:10
+          _0 = const ();                   // scope 1 at $DIR/simplify-locals-fixedpoint.rs:5:9: 7:10
                                            // ty::Const
                                            // + ty: ()
                                            // + val: Value(Scalar(<ZST>))
                                            // mir::Constant
                                            // + span: $DIR/simplify-locals-fixedpoint.rs:5:9: 7:10
                                            // + literal: Const { ty: (), val: Value(Scalar(<ZST>)) }
-          goto -> bb6;                     // bb4[1]: scope 1 at $DIR/simplify-locals-fixedpoint.rs:5:9: 7:10
+          goto -> bb6;                     // scope 1 at $DIR/simplify-locals-fixedpoint.rs:5:9: 7:10
       }
   
       bb5: {
-          _0 = const ();                   // bb5[0]: scope 1 at $DIR/simplify-locals-fixedpoint.rs:5:21: 7:10
+          _0 = const ();                   // scope 1 at $DIR/simplify-locals-fixedpoint.rs:5:21: 7:10
                                            // ty::Const
                                            // + ty: ()
                                            // + val: Value(Scalar(<ZST>))
                                            // mir::Constant
                                            // + span: $DIR/simplify-locals-fixedpoint.rs:5:21: 7:10
                                            // + literal: Const { ty: (), val: Value(Scalar(<ZST>)) }
-          goto -> bb6;                     // bb5[1]: scope 1 at $DIR/simplify-locals-fixedpoint.rs:5:9: 7:10
+          goto -> bb6;                     // scope 1 at $DIR/simplify-locals-fixedpoint.rs:5:9: 7:10
       }
   
       bb6: {
-          StorageDead(_7);                 // bb6[0]: scope 1 at $DIR/simplify-locals-fixedpoint.rs:8:5: 8:6
-          StorageDead(_6);                 // bb6[1]: scope 0 at $DIR/simplify-locals-fixedpoint.rs:8:5: 8:6
-          goto -> bb7;                     // bb6[2]: scope 0 at $DIR/simplify-locals-fixedpoint.rs:4:5: 8:6
+          StorageDead(_7);                 // scope 1 at $DIR/simplify-locals-fixedpoint.rs:8:5: 8:6
+          StorageDead(_6);                 // scope 0 at $DIR/simplify-locals-fixedpoint.rs:8:5: 8:6
+          goto -> bb7;                     // scope 0 at $DIR/simplify-locals-fixedpoint.rs:4:5: 8:6
       }
   
       bb7: {
-          drop(_1) -> bb8;                 // bb7[0]: scope 0 at $DIR/simplify-locals-fixedpoint.rs:9:1: 9:2
+          drop(_1) -> bb8;                 // scope 0 at $DIR/simplify-locals-fixedpoint.rs:9:1: 9:2
       }
   
       bb8: {
-          StorageDead(_1);                 // bb8[0]: scope 0 at $DIR/simplify-locals-fixedpoint.rs:9:1: 9:2
-          return;                          // bb8[1]: scope 0 at $DIR/simplify-locals-fixedpoint.rs:9:2: 9:2
+          StorageDead(_1);                 // scope 0 at $DIR/simplify-locals-fixedpoint.rs:9:1: 9:2
+          return;                          // scope 0 at $DIR/simplify-locals-fixedpoint.rs:9:2: 9:2
       }
   }
   
diff --git a/src/test/mir-opt/simplify-locals-removes-unused-consts/rustc.main.SimplifyLocals.diff b/src/test/mir-opt/simplify-locals-removes-unused-consts/rustc.main.SimplifyLocals.diff
index 855ead7ea05..0742f655730 100644
--- a/src/test/mir-opt/simplify-locals-removes-unused-consts/rustc.main.SimplifyLocals.diff
+++ b/src/test/mir-opt/simplify-locals-removes-unused-consts/rustc.main.SimplifyLocals.diff
@@ -20,55 +20,55 @@
       }
   
       bb0: {
--         StorageLive(_1);                 // bb0[0]: scope 0 at $DIR/simplify-locals-removes-unused-consts.rs:13:20: 13:28
--         StorageLive(_2);                 // bb0[1]: scope 0 at $DIR/simplify-locals-removes-unused-consts.rs:13:21: 13:23
--         _2 = const ();                   // bb0[2]: scope 0 at $DIR/simplify-locals-removes-unused-consts.rs:13:21: 13:23
-+         StorageLive(_1);                 // bb0[0]: scope 1 at $DIR/simplify-locals-removes-unused-consts.rs:14:5: 14:22
-+         _1 = const use_zst(const ((), ())) -> bb1; // bb0[1]: scope 1 at $DIR/simplify-locals-removes-unused-consts.rs:14:5: 14:22
+-         StorageLive(_1);                 // scope 0 at $DIR/simplify-locals-removes-unused-consts.rs:13:20: 13:28
+-         StorageLive(_2);                 // scope 0 at $DIR/simplify-locals-removes-unused-consts.rs:13:21: 13:23
+-         _2 = const ();                   // scope 0 at $DIR/simplify-locals-removes-unused-consts.rs:13:21: 13:23
++         StorageLive(_1);                 // scope 1 at $DIR/simplify-locals-removes-unused-consts.rs:14:5: 14:22
++         _1 = const use_zst(const ((), ())) -> bb1; // scope 1 at $DIR/simplify-locals-removes-unused-consts.rs:14:5: 14:22
                                            // ty::Const
 -                                          // + ty: ()
 -                                          // + val: Value(Scalar(<ZST>))
 -                                          // mir::Constant
 -                                          // + span: $DIR/simplify-locals-removes-unused-consts.rs:13:21: 13:23
 -                                          // + literal: Const { ty: (), val: Value(Scalar(<ZST>)) }
--         StorageLive(_3);                 // bb0[3]: scope 0 at $DIR/simplify-locals-removes-unused-consts.rs:13:25: 13:27
--         _3 = const ();                   // bb0[4]: scope 0 at $DIR/simplify-locals-removes-unused-consts.rs:13:25: 13:27
+-         StorageLive(_3);                 // scope 0 at $DIR/simplify-locals-removes-unused-consts.rs:13:25: 13:27
+-         _3 = const ();                   // scope 0 at $DIR/simplify-locals-removes-unused-consts.rs:13:25: 13:27
 -                                          // ty::Const
 -                                          // + ty: ()
 -                                          // + val: Value(Scalar(<ZST>))
 -                                          // mir::Constant
 -                                          // + span: $DIR/simplify-locals-removes-unused-consts.rs:13:25: 13:27
 -                                          // + literal: Const { ty: (), val: Value(Scalar(<ZST>)) }
--         _1 = const ((), ());             // bb0[5]: scope 0 at $DIR/simplify-locals-removes-unused-consts.rs:13:20: 13:28
+-         _1 = const ((), ());             // scope 0 at $DIR/simplify-locals-removes-unused-consts.rs:13:20: 13:28
 -                                          // ty::Const
 -                                          // + ty: ((), ())
 -                                          // + val: Value(Scalar(<ZST>))
 -                                          // mir::Constant
 -                                          // + span: $DIR/simplify-locals-removes-unused-consts.rs:13:20: 13:28
 -                                          // + literal: Const { ty: ((), ()), val: Value(Scalar(<ZST>)) }
--         StorageDead(_3);                 // bb0[6]: scope 0 at $DIR/simplify-locals-removes-unused-consts.rs:13:27: 13:28
--         StorageDead(_2);                 // bb0[7]: scope 0 at $DIR/simplify-locals-removes-unused-consts.rs:13:27: 13:28
--         StorageDead(_1);                 // bb0[8]: scope 0 at $DIR/simplify-locals-removes-unused-consts.rs:13:28: 13:29
--         StorageLive(_4);                 // bb0[9]: scope 1 at $DIR/simplify-locals-removes-unused-consts.rs:14:5: 14:22
--         StorageLive(_6);                 // bb0[10]: scope 1 at $DIR/simplify-locals-removes-unused-consts.rs:14:14: 14:16
--         _6 = const ();                   // bb0[11]: scope 1 at $DIR/simplify-locals-removes-unused-consts.rs:14:14: 14:16
+-         StorageDead(_3);                 // scope 0 at $DIR/simplify-locals-removes-unused-consts.rs:13:27: 13:28
+-         StorageDead(_2);                 // scope 0 at $DIR/simplify-locals-removes-unused-consts.rs:13:27: 13:28
+-         StorageDead(_1);                 // scope 0 at $DIR/simplify-locals-removes-unused-consts.rs:13:28: 13:29
+-         StorageLive(_4);                 // scope 1 at $DIR/simplify-locals-removes-unused-consts.rs:14:5: 14:22
+-         StorageLive(_6);                 // scope 1 at $DIR/simplify-locals-removes-unused-consts.rs:14:14: 14:16
+-         _6 = const ();                   // scope 1 at $DIR/simplify-locals-removes-unused-consts.rs:14:14: 14:16
 -                                          // ty::Const
 -                                          // + ty: ()
 -                                          // + val: Value(Scalar(<ZST>))
 -                                          // mir::Constant
 -                                          // + span: $DIR/simplify-locals-removes-unused-consts.rs:14:14: 14:16
 -                                          // + literal: Const { ty: (), val: Value(Scalar(<ZST>)) }
--         StorageLive(_7);                 // bb0[12]: scope 1 at $DIR/simplify-locals-removes-unused-consts.rs:14:18: 14:20
--         _7 = const ();                   // bb0[13]: scope 1 at $DIR/simplify-locals-removes-unused-consts.rs:14:18: 14:20
+-         StorageLive(_7);                 // scope 1 at $DIR/simplify-locals-removes-unused-consts.rs:14:18: 14:20
+-         _7 = const ();                   // scope 1 at $DIR/simplify-locals-removes-unused-consts.rs:14:18: 14:20
 -                                          // ty::Const
 -                                          // + ty: ()
 -                                          // + val: Value(Scalar(<ZST>))
 -                                          // mir::Constant
 -                                          // + span: $DIR/simplify-locals-removes-unused-consts.rs:14:18: 14:20
 -                                          // + literal: Const { ty: (), val: Value(Scalar(<ZST>)) }
--         StorageDead(_7);                 // bb0[14]: scope 1 at $DIR/simplify-locals-removes-unused-consts.rs:14:20: 14:21
--         StorageDead(_6);                 // bb0[15]: scope 1 at $DIR/simplify-locals-removes-unused-consts.rs:14:20: 14:21
--         _4 = const use_zst(const ((), ())) -> bb1; // bb0[16]: scope 1 at $DIR/simplify-locals-removes-unused-consts.rs:14:5: 14:22
+-         StorageDead(_7);                 // scope 1 at $DIR/simplify-locals-removes-unused-consts.rs:14:20: 14:21
+-         StorageDead(_6);                 // scope 1 at $DIR/simplify-locals-removes-unused-consts.rs:14:20: 14:21
+-         _4 = const use_zst(const ((), ())) -> bb1; // scope 1 at $DIR/simplify-locals-removes-unused-consts.rs:14:5: 14:22
 -                                          // ty::Const
                                            // + ty: fn(((), ())) {use_zst}
                                            // + val: Value(Scalar(<ZST>))
@@ -84,29 +84,29 @@
       }
   
       bb1: {
--         StorageDead(_4);                 // bb1[0]: scope 1 at $DIR/simplify-locals-removes-unused-consts.rs:14:22: 14:23
--         StorageLive(_8);                 // bb1[1]: scope 1 at $DIR/simplify-locals-removes-unused-consts.rs:16:5: 16:35
--         StorageLive(_10);                // bb1[2]: scope 1 at $DIR/simplify-locals-removes-unused-consts.rs:16:12: 16:30
--         StorageLive(_11);                // bb1[3]: scope 1 at $DIR/simplify-locals-removes-unused-consts.rs:16:12: 16:28
--         _11 = const Temp { x: 40u8 };    // bb1[4]: scope 1 at $DIR/simplify-locals-removes-unused-consts.rs:16:12: 16:28
-+         StorageDead(_1);                 // bb1[0]: scope 1 at $DIR/simplify-locals-removes-unused-consts.rs:14:22: 14:23
-+         StorageLive(_2);                 // bb1[1]: scope 1 at $DIR/simplify-locals-removes-unused-consts.rs:16:5: 16:35
-+         _2 = const use_u8(const 42u8) -> bb2; // bb1[2]: scope 1 at $DIR/simplify-locals-removes-unused-consts.rs:16:5: 16:35
+-         StorageDead(_4);                 // scope 1 at $DIR/simplify-locals-removes-unused-consts.rs:14:22: 14:23
+-         StorageLive(_8);                 // scope 1 at $DIR/simplify-locals-removes-unused-consts.rs:16:5: 16:35
+-         StorageLive(_10);                // scope 1 at $DIR/simplify-locals-removes-unused-consts.rs:16:12: 16:30
+-         StorageLive(_11);                // scope 1 at $DIR/simplify-locals-removes-unused-consts.rs:16:12: 16:28
+-         _11 = const Temp { x: 40u8 };    // scope 1 at $DIR/simplify-locals-removes-unused-consts.rs:16:12: 16:28
++         StorageDead(_1);                 // scope 1 at $DIR/simplify-locals-removes-unused-consts.rs:14:22: 14:23
++         StorageLive(_2);                 // scope 1 at $DIR/simplify-locals-removes-unused-consts.rs:16:5: 16:35
++         _2 = const use_u8(const 42u8) -> bb2; // scope 1 at $DIR/simplify-locals-removes-unused-consts.rs:16:5: 16:35
                                            // ty::Const
 -                                          // + ty: Temp
 -                                          // + val: Value(Scalar(0x28))
 -                                          // mir::Constant
 -                                          // + span: $DIR/simplify-locals-removes-unused-consts.rs:16:12: 16:28
 -                                          // + literal: Const { ty: Temp, val: Value(Scalar(0x28)) }
--         _10 = const 40u8;                // bb1[5]: scope 1 at $DIR/simplify-locals-removes-unused-consts.rs:16:12: 16:30
+-         _10 = const 40u8;                // scope 1 at $DIR/simplify-locals-removes-unused-consts.rs:16:12: 16:30
 -                                          // ty::Const
 -                                          // + ty: u8
 -                                          // + val: Value(Scalar(0x28))
 -                                          // mir::Constant
 -                                          // + span: $DIR/simplify-locals-removes-unused-consts.rs:16:12: 16:30
 -                                          // + literal: Const { ty: u8, val: Value(Scalar(0x28)) }
--         StorageDead(_10);                // bb1[6]: scope 1 at $DIR/simplify-locals-removes-unused-consts.rs:16:33: 16:34
--         _8 = const use_u8(const 42u8) -> bb2; // bb1[7]: scope 1 at $DIR/simplify-locals-removes-unused-consts.rs:16:5: 16:35
+-         StorageDead(_10);                // scope 1 at $DIR/simplify-locals-removes-unused-consts.rs:16:33: 16:34
+-         _8 = const use_u8(const 42u8) -> bb2; // scope 1 at $DIR/simplify-locals-removes-unused-consts.rs:16:5: 16:35
 -                                          // ty::Const
                                            // + ty: fn(u8) {use_u8}
                                            // + val: Value(Scalar(<ZST>))
@@ -122,19 +122,17 @@
       }
   
       bb2: {
--         StorageDead(_11);                // bb2[0]: scope 1 at $DIR/simplify-locals-removes-unused-consts.rs:16:35: 16:36
--         StorageDead(_8);                 // bb2[1]: scope 1 at $DIR/simplify-locals-removes-unused-consts.rs:16:35: 16:36
--         _0 = const ();                   // bb2[2]: scope 0 at $DIR/simplify-locals-removes-unused-consts.rs:12:11: 17:2
-+         StorageDead(_2);                 // bb2[0]: scope 1 at $DIR/simplify-locals-removes-unused-consts.rs:16:35: 16:36
-+         _0 = const ();                   // bb2[1]: scope 0 at $DIR/simplify-locals-removes-unused-consts.rs:12:11: 17:2
+-         StorageDead(_11);                // scope 1 at $DIR/simplify-locals-removes-unused-consts.rs:16:35: 16:36
+-         StorageDead(_8);                 // scope 1 at $DIR/simplify-locals-removes-unused-consts.rs:16:35: 16:36
++         StorageDead(_2);                 // scope 1 at $DIR/simplify-locals-removes-unused-consts.rs:16:35: 16:36
+          _0 = const ();                   // scope 0 at $DIR/simplify-locals-removes-unused-consts.rs:12:11: 17:2
                                            // ty::Const
                                            // + ty: ()
                                            // + val: Value(Scalar(<ZST>))
                                            // mir::Constant
                                            // + span: $DIR/simplify-locals-removes-unused-consts.rs:12:11: 17:2
                                            // + literal: Const { ty: (), val: Value(Scalar(<ZST>)) }
--         return;                          // bb2[3]: scope 0 at $DIR/simplify-locals-removes-unused-consts.rs:17:2: 17:2
-+         return;                          // bb2[2]: scope 0 at $DIR/simplify-locals-removes-unused-consts.rs:17:2: 17:2
+          return;                          // scope 0 at $DIR/simplify-locals-removes-unused-consts.rs:17:2: 17:2
       }
   }
   
diff --git a/src/test/mir-opt/simplify-locals-removes-unused-discriminant-reads/rustc.map.SimplifyLocals.diff b/src/test/mir-opt/simplify-locals-removes-unused-discriminant-reads/rustc.map.SimplifyLocals.diff
index bba8bc82fe7..0ca54af85e3 100644
--- a/src/test/mir-opt/simplify-locals-removes-unused-discriminant-reads/rustc.map.SimplifyLocals.diff
+++ b/src/test/mir-opt/simplify-locals-removes-unused-discriminant-reads/rustc.map.SimplifyLocals.diff
@@ -14,24 +14,23 @@
       }
   
       bb0: {
-          _2 = discriminant(_1);           // bb0[0]: scope 0 at $DIR/simplify-locals-removes-unused-discriminant-reads.rs:3:9: 3:13
-          switchInt(move _2) -> [0isize: bb2, otherwise: bb1]; // bb0[1]: scope 0 at $DIR/simplify-locals-removes-unused-discriminant-reads.rs:3:9: 3:13
+          _2 = discriminant(_1);           // scope 0 at $DIR/simplify-locals-removes-unused-discriminant-reads.rs:3:9: 3:13
+          switchInt(move _2) -> [0isize: bb2, otherwise: bb1]; // scope 0 at $DIR/simplify-locals-removes-unused-discriminant-reads.rs:3:9: 3:13
       }
   
       bb1: {
-          _0 = move _1;                    // bb1[0]: scope 1 at $DIR/simplify-locals-removes-unused-discriminant-reads.rs:4:20: 4:27
-          goto -> bb3;                     // bb1[1]: scope 0 at $DIR/simplify-locals-removes-unused-discriminant-reads.rs:2:5: 5:6
+          _0 = move _1;                    // scope 1 at $DIR/simplify-locals-removes-unused-discriminant-reads.rs:4:20: 4:27
+          goto -> bb3;                     // scope 0 at $DIR/simplify-locals-removes-unused-discriminant-reads.rs:2:5: 5:6
       }
   
       bb2: {
-          discriminant(_0) = 0;            // bb2[0]: scope 0 at $DIR/simplify-locals-removes-unused-discriminant-reads.rs:3:17: 3:21
-          goto -> bb3;                     // bb2[1]: scope 0 at $DIR/simplify-locals-removes-unused-discriminant-reads.rs:2:5: 5:6
+          discriminant(_0) = 0;            // scope 0 at $DIR/simplify-locals-removes-unused-discriminant-reads.rs:3:17: 3:21
+          goto -> bb3;                     // scope 0 at $DIR/simplify-locals-removes-unused-discriminant-reads.rs:2:5: 5:6
       }
   
       bb3: {
--         _5 = discriminant(_1);           // bb3[0]: scope 0 at $DIR/simplify-locals-removes-unused-discriminant-reads.rs:6:1: 6:2
--         return;                          // bb3[1]: scope 0 at $DIR/simplify-locals-removes-unused-discriminant-reads.rs:6:2: 6:2
-+         return;                          // bb3[0]: scope 0 at $DIR/simplify-locals-removes-unused-discriminant-reads.rs:6:2: 6:2
+-         _5 = discriminant(_1);           // scope 0 at $DIR/simplify-locals-removes-unused-discriminant-reads.rs:6:1: 6:2
+          return;                          // scope 0 at $DIR/simplify-locals-removes-unused-discriminant-reads.rs:6:2: 6:2
       }
   }
   
diff --git a/src/test/mir-opt/simplify_cfg/rustc.main.SimplifyCfg-early-opt.diff b/src/test/mir-opt/simplify_cfg/rustc.main.SimplifyCfg-early-opt.diff
index ecac835fb87..3b472ed3a03 100644
--- a/src/test/mir-opt/simplify_cfg/rustc.main.SimplifyCfg-early-opt.diff
+++ b/src/test/mir-opt/simplify_cfg/rustc.main.SimplifyCfg-early-opt.diff
@@ -8,14 +8,13 @@
       let mut _3: !;                       // in scope 0 at $DIR/simplify_cfg.rs:7:18: 9:10
   
       bb0: {
--         goto -> bb1;                     // bb0[0]: scope 0 at $DIR/simplify_cfg.rs:6:5: 10:6
+-         goto -> bb1;                     // scope 0 at $DIR/simplify_cfg.rs:6:5: 10:6
 -     }
 - 
 -     bb1: {
--         StorageLive(_2);                 // bb1[0]: scope 0 at $DIR/simplify_cfg.rs:7:12: 7:17
--         _2 = const bar() -> bb3;         // bb1[1]: scope 0 at $DIR/simplify_cfg.rs:7:12: 7:17
-+         StorageLive(_2);                 // bb0[0]: scope 0 at $DIR/simplify_cfg.rs:7:12: 7:17
-+         _2 = const bar() -> bb1;         // bb0[1]: scope 0 at $DIR/simplify_cfg.rs:7:12: 7:17
+          StorageLive(_2);                 // scope 0 at $DIR/simplify_cfg.rs:7:12: 7:17
+-         _2 = const bar() -> bb3;         // scope 0 at $DIR/simplify_cfg.rs:7:12: 7:17
++         _2 = const bar() -> bb1;         // scope 0 at $DIR/simplify_cfg.rs:7:12: 7:17
                                            // ty::Const
                                            // + ty: fn() -> bool {bar}
                                            // + val: Value(Scalar(<ZST>))
@@ -25,50 +24,44 @@
       }
   
 -     bb2 (cleanup): {
--         resume;                          // bb2[0]: scope 0 at $DIR/simplify_cfg.rs:5:1: 11:2
+-         resume;                          // scope 0 at $DIR/simplify_cfg.rs:5:1: 11:2
 +     bb1: {
-+         switchInt(_2) -> [false: bb2, otherwise: bb3]; // bb1[0]: scope 0 at $DIR/simplify_cfg.rs:7:9: 9:10
++         switchInt(_2) -> [false: bb2, otherwise: bb3]; // scope 0 at $DIR/simplify_cfg.rs:7:9: 9:10
       }
   
 -     bb3: {
--         nop;                             // bb3[0]: scope 0 at $DIR/simplify_cfg.rs:7:12: 7:17
--         switchInt(_2) -> [false: bb5, otherwise: bb4]; // bb3[1]: scope 0 at $DIR/simplify_cfg.rs:7:9: 9:10
+-         nop;                             // scope 0 at $DIR/simplify_cfg.rs:7:12: 7:17
+-         switchInt(_2) -> [false: bb5, otherwise: bb4]; // scope 0 at $DIR/simplify_cfg.rs:7:9: 9:10
 -     }
 - 
 -     bb4: {
--         goto -> bb6;                     // bb4[0]: scope 0 at $DIR/simplify_cfg.rs:7:9: 9:10
+-         goto -> bb6;                     // scope 0 at $DIR/simplify_cfg.rs:7:9: 9:10
 -     }
 - 
 -     bb5: {
--         _1 = const ();                   // bb5[0]: scope 0 at $DIR/simplify_cfg.rs:7:9: 9:10
 +     bb2: {
-+         _1 = const ();                   // bb2[0]: scope 0 at $DIR/simplify_cfg.rs:7:9: 9:10
+          _1 = const ();                   // scope 0 at $DIR/simplify_cfg.rs:7:9: 9:10
                                            // ty::Const
                                            // + ty: ()
                                            // + val: Value(Scalar(<ZST>))
                                            // mir::Constant
                                            // + span: $DIR/simplify_cfg.rs:7:9: 9:10
                                            // + literal: Const { ty: (), val: Value(Scalar(<ZST>)) }
--         StorageDead(_2);                 // bb5[1]: scope 0 at $DIR/simplify_cfg.rs:10:5: 10:6
--         goto -> bb0;                     // bb5[2]: scope 0 at $DIR/simplify_cfg.rs:6:5: 10:6
-+         StorageDead(_2);                 // bb2[1]: scope 0 at $DIR/simplify_cfg.rs:10:5: 10:6
-+         goto -> bb0;                     // bb2[2]: scope 0 at $DIR/simplify_cfg.rs:6:5: 10:6
+          StorageDead(_2);                 // scope 0 at $DIR/simplify_cfg.rs:10:5: 10:6
+          goto -> bb0;                     // scope 0 at $DIR/simplify_cfg.rs:6:5: 10:6
       }
   
 -     bb6: {
--         _0 = const ();                   // bb6[0]: scope 0 at $DIR/simplify_cfg.rs:8:13: 8:18
 +     bb3: {
-+         _0 = const ();                   // bb3[0]: scope 0 at $DIR/simplify_cfg.rs:8:13: 8:18
+          _0 = const ();                   // scope 0 at $DIR/simplify_cfg.rs:8:13: 8:18
                                            // ty::Const
                                            // + ty: ()
                                            // + val: Value(Scalar(<ZST>))
                                            // mir::Constant
                                            // + span: $DIR/simplify_cfg.rs:8:13: 8:18
                                            // + literal: Const { ty: (), val: Value(Scalar(<ZST>)) }
--         StorageDead(_2);                 // bb6[1]: scope 0 at $DIR/simplify_cfg.rs:10:5: 10:6
--         return;                          // bb6[2]: scope 0 at $DIR/simplify_cfg.rs:11:2: 11:2
-+         StorageDead(_2);                 // bb3[1]: scope 0 at $DIR/simplify_cfg.rs:10:5: 10:6
-+         return;                          // bb3[2]: scope 0 at $DIR/simplify_cfg.rs:11:2: 11:2
+          StorageDead(_2);                 // scope 0 at $DIR/simplify_cfg.rs:10:5: 10:6
+          return;                          // scope 0 at $DIR/simplify_cfg.rs:11:2: 11:2
       }
   }
   
diff --git a/src/test/mir-opt/simplify_cfg/rustc.main.SimplifyCfg-initial.diff b/src/test/mir-opt/simplify_cfg/rustc.main.SimplifyCfg-initial.diff
index 7c8bdde5418..0cc2258f463 100644
--- a/src/test/mir-opt/simplify_cfg/rustc.main.SimplifyCfg-initial.diff
+++ b/src/test/mir-opt/simplify_cfg/rustc.main.SimplifyCfg-initial.diff
@@ -8,23 +8,22 @@
       let mut _3: !;                       // in scope 0 at $DIR/simplify_cfg.rs:7:18: 9:10
   
       bb0: {
--         goto -> bb1;                     // bb0[0]: scope 0 at $DIR/simplify_cfg.rs:6:5: 10:6
-+         falseUnwind -> [real: bb1, cleanup: bb2]; // bb0[0]: scope 0 at $DIR/simplify_cfg.rs:6:5: 10:6
+-         goto -> bb1;                     // scope 0 at $DIR/simplify_cfg.rs:6:5: 10:6
++         falseUnwind -> [real: bb1, cleanup: bb2]; // scope 0 at $DIR/simplify_cfg.rs:6:5: 10:6
       }
   
       bb1: {
--         falseUnwind -> [real: bb3, cleanup: bb4]; // bb1[0]: scope 0 at $DIR/simplify_cfg.rs:6:5: 10:6
+-         falseUnwind -> [real: bb3, cleanup: bb4]; // scope 0 at $DIR/simplify_cfg.rs:6:5: 10:6
 -     }
 - 
 -     bb2: {
--         goto -> bb13;                    // bb2[0]: scope 0 at $DIR/simplify_cfg.rs:11:2: 11:2
+-         goto -> bb13;                    // scope 0 at $DIR/simplify_cfg.rs:11:2: 11:2
 -     }
 - 
 -     bb3: {
--         StorageLive(_2);                 // bb3[0]: scope 0 at $DIR/simplify_cfg.rs:7:12: 7:17
--         _2 = const bar() -> [return: bb5, unwind: bb4]; // bb3[1]: scope 0 at $DIR/simplify_cfg.rs:7:12: 7:17
-+         StorageLive(_2);                 // bb1[0]: scope 0 at $DIR/simplify_cfg.rs:7:12: 7:17
-+         _2 = const bar() -> [return: bb3, unwind: bb2]; // bb1[1]: scope 0 at $DIR/simplify_cfg.rs:7:12: 7:17
+          StorageLive(_2);                 // scope 0 at $DIR/simplify_cfg.rs:7:12: 7:17
+-         _2 = const bar() -> [return: bb5, unwind: bb4]; // scope 0 at $DIR/simplify_cfg.rs:7:12: 7:17
++         _2 = const bar() -> [return: bb3, unwind: bb2]; // scope 0 at $DIR/simplify_cfg.rs:7:12: 7:17
                                            // ty::Const
                                            // + ty: fn() -> bool {bar}
                                            // + val: Value(Scalar(<ZST>))
@@ -34,75 +33,69 @@
       }
   
 -     bb4 (cleanup): {
--         resume;                          // bb4[0]: scope 0 at $DIR/simplify_cfg.rs:5:1: 11:2
 +     bb2 (cleanup): {
-+         resume;                          // bb2[0]: scope 0 at $DIR/simplify_cfg.rs:5:1: 11:2
+          resume;                          // scope 0 at $DIR/simplify_cfg.rs:5:1: 11:2
       }
   
 -     bb5: {
--         FakeRead(ForMatchedPlace, _2);   // bb5[0]: scope 0 at $DIR/simplify_cfg.rs:7:12: 7:17
--         switchInt(_2) -> [false: bb7, otherwise: bb6]; // bb5[1]: scope 0 at $DIR/simplify_cfg.rs:7:9: 9:10
 +     bb3: {
-+         FakeRead(ForMatchedPlace, _2);   // bb3[0]: scope 0 at $DIR/simplify_cfg.rs:7:12: 7:17
-+         switchInt(_2) -> [false: bb5, otherwise: bb4]; // bb3[1]: scope 0 at $DIR/simplify_cfg.rs:7:9: 9:10
+          FakeRead(ForMatchedPlace, _2);   // scope 0 at $DIR/simplify_cfg.rs:7:12: 7:17
+-         switchInt(_2) -> [false: bb7, otherwise: bb6]; // scope 0 at $DIR/simplify_cfg.rs:7:9: 9:10
++         switchInt(_2) -> [false: bb5, otherwise: bb4]; // scope 0 at $DIR/simplify_cfg.rs:7:9: 9:10
       }
   
 -     bb6: {
--         falseEdges -> [real: bb8, imaginary: bb7]; // bb6[0]: scope 0 at $DIR/simplify_cfg.rs:7:9: 9:10
+-         falseEdges -> [real: bb8, imaginary: bb7]; // scope 0 at $DIR/simplify_cfg.rs:7:9: 9:10
 +     bb4: {
-+         falseEdges -> [real: bb6, imaginary: bb5]; // bb4[0]: scope 0 at $DIR/simplify_cfg.rs:7:9: 9:10
++         falseEdges -> [real: bb6, imaginary: bb5]; // scope 0 at $DIR/simplify_cfg.rs:7:9: 9:10
       }
   
 -     bb7: {
--         _1 = const ();                   // bb7[0]: scope 0 at $DIR/simplify_cfg.rs:7:9: 9:10
 +     bb5: {
-+         _1 = const ();                   // bb5[0]: scope 0 at $DIR/simplify_cfg.rs:7:9: 9:10
+          _1 = const ();                   // scope 0 at $DIR/simplify_cfg.rs:7:9: 9:10
                                            // ty::Const
                                            // + ty: ()
                                            // + val: Value(Scalar(<ZST>))
                                            // mir::Constant
                                            // + span: $DIR/simplify_cfg.rs:7:9: 9:10
                                            // + literal: Const { ty: (), val: Value(Scalar(<ZST>)) }
--         goto -> bb12;                    // bb7[1]: scope 0 at $DIR/simplify_cfg.rs:7:9: 9:10
-+         StorageDead(_2);                 // bb5[1]: scope 0 at $DIR/simplify_cfg.rs:10:5: 10:6
-+         goto -> bb0;                     // bb5[2]: scope 0 at $DIR/simplify_cfg.rs:6:5: 10:6
+-         goto -> bb12;                    // scope 0 at $DIR/simplify_cfg.rs:7:9: 9:10
++         StorageDead(_2);                 // scope 0 at $DIR/simplify_cfg.rs:10:5: 10:6
++         goto -> bb0;                     // scope 0 at $DIR/simplify_cfg.rs:6:5: 10:6
       }
   
 -     bb8: {
--         _0 = const ();                   // bb8[0]: scope 0 at $DIR/simplify_cfg.rs:8:13: 8:18
 +     bb6: {
-+         _0 = const ();                   // bb6[0]: scope 0 at $DIR/simplify_cfg.rs:8:13: 8:18
+          _0 = const ();                   // scope 0 at $DIR/simplify_cfg.rs:8:13: 8:18
                                            // ty::Const
                                            // + ty: ()
                                            // + val: Value(Scalar(<ZST>))
                                            // mir::Constant
                                            // + span: $DIR/simplify_cfg.rs:8:13: 8:18
                                            // + literal: Const { ty: (), val: Value(Scalar(<ZST>)) }
--         goto -> bb9;                     // bb8[1]: scope 0 at $DIR/simplify_cfg.rs:8:13: 8:18
+-         goto -> bb9;                     // scope 0 at $DIR/simplify_cfg.rs:8:13: 8:18
 -     }
 - 
 -     bb9: {
--         StorageDead(_2);                 // bb9[0]: scope 0 at $DIR/simplify_cfg.rs:10:5: 10:6
--         goto -> bb2;                     // bb9[1]: scope 0 at $DIR/simplify_cfg.rs:8:13: 8:18
+          StorageDead(_2);                 // scope 0 at $DIR/simplify_cfg.rs:10:5: 10:6
+-         goto -> bb2;                     // scope 0 at $DIR/simplify_cfg.rs:8:13: 8:18
 -     }
 - 
 -     bb10: {
--         unreachable;                     // bb10[0]: scope 0 at $DIR/simplify_cfg.rs:7:18: 9:10
+-         unreachable;                     // scope 0 at $DIR/simplify_cfg.rs:7:18: 9:10
 -     }
 - 
 -     bb11: {
--         goto -> bb12;                    // bb11[0]: scope 0 at $DIR/simplify_cfg.rs:7:9: 9:10
+-         goto -> bb12;                    // scope 0 at $DIR/simplify_cfg.rs:7:9: 9:10
 -     }
 - 
 -     bb12: {
--         StorageDead(_2);                 // bb12[0]: scope 0 at $DIR/simplify_cfg.rs:10:5: 10:6
--         goto -> bb1;                     // bb12[1]: scope 0 at $DIR/simplify_cfg.rs:6:5: 10:6
+-         StorageDead(_2);                 // scope 0 at $DIR/simplify_cfg.rs:10:5: 10:6
+-         goto -> bb1;                     // scope 0 at $DIR/simplify_cfg.rs:6:5: 10:6
 -     }
 - 
 -     bb13: {
--         return;                          // bb13[0]: scope 0 at $DIR/simplify_cfg.rs:11:2: 11:2
-+         StorageDead(_2);                 // bb6[1]: scope 0 at $DIR/simplify_cfg.rs:10:5: 10:6
-+         return;                          // bb6[2]: scope 0 at $DIR/simplify_cfg.rs:11:2: 11:2
+          return;                          // scope 0 at $DIR/simplify_cfg.rs:11:2: 11:2
       }
   }
   
diff --git a/src/test/mir-opt/simplify_if/rustc.main.SimplifyBranches-after-const-prop.diff b/src/test/mir-opt/simplify_if/rustc.main.SimplifyBranches-after-const-prop.diff
index 2946eb1cc44..e94e49bf0cb 100644
--- a/src/test/mir-opt/simplify_if/rustc.main.SimplifyBranches-after-const-prop.diff
+++ b/src/test/mir-opt/simplify_if/rustc.main.SimplifyBranches-after-const-prop.diff
@@ -7,38 +7,38 @@
       let _2: ();                          // in scope 0 at $DIR/simplify_if.rs:7:9: 7:15
   
       bb0: {
-          StorageLive(_1);                 // bb0[0]: scope 0 at $DIR/simplify_if.rs:6:8: 6:13
-          _1 = const false;                // bb0[1]: scope 0 at $DIR/simplify_if.rs:6:8: 6:13
+          StorageLive(_1);                 // scope 0 at $DIR/simplify_if.rs:6:8: 6:13
+          _1 = const false;                // scope 0 at $DIR/simplify_if.rs:6:8: 6:13
                                            // ty::Const
                                            // + ty: bool
                                            // + val: Value(Scalar(0x00))
                                            // mir::Constant
                                            // + span: $DIR/simplify_if.rs:6:8: 6:13
                                            // + literal: Const { ty: bool, val: Value(Scalar(0x00)) }
--         switchInt(const false) -> [false: bb1, otherwise: bb2]; // bb0[2]: scope 0 at $DIR/simplify_if.rs:6:5: 8:6
+-         switchInt(const false) -> [false: bb1, otherwise: bb2]; // scope 0 at $DIR/simplify_if.rs:6:5: 8:6
 -                                          // ty::Const
 -                                          // + ty: bool
 -                                          // + val: Value(Scalar(0x00))
 -                                          // mir::Constant
 -                                          // + span: $DIR/simplify_if.rs:6:5: 8:6
 -                                          // + literal: Const { ty: bool, val: Value(Scalar(0x00)) }
-+         goto -> bb1;                     // bb0[2]: scope 0 at $DIR/simplify_if.rs:6:5: 8:6
++         goto -> bb1;                     // scope 0 at $DIR/simplify_if.rs:6:5: 8:6
       }
   
       bb1: {
-          _0 = const ();                   // bb1[0]: scope 0 at $DIR/simplify_if.rs:6:5: 8:6
+          _0 = const ();                   // scope 0 at $DIR/simplify_if.rs:6:5: 8:6
                                            // ty::Const
                                            // + ty: ()
                                            // + val: Value(Scalar(<ZST>))
                                            // mir::Constant
                                            // + span: $DIR/simplify_if.rs:6:5: 8:6
                                            // + literal: Const { ty: (), val: Value(Scalar(<ZST>)) }
-          goto -> bb4;                     // bb1[1]: scope 0 at $DIR/simplify_if.rs:6:5: 8:6
+          goto -> bb4;                     // scope 0 at $DIR/simplify_if.rs:6:5: 8:6
       }
   
       bb2: {
-          StorageLive(_2);                 // bb2[0]: scope 0 at $DIR/simplify_if.rs:7:9: 7:15
-          _2 = const noop() -> bb3;        // bb2[1]: scope 0 at $DIR/simplify_if.rs:7:9: 7:15
+          StorageLive(_2);                 // scope 0 at $DIR/simplify_if.rs:7:9: 7:15
+          _2 = const noop() -> bb3;        // scope 0 at $DIR/simplify_if.rs:7:9: 7:15
                                            // ty::Const
                                            // + ty: fn() {noop}
                                            // + val: Value(Scalar(<ZST>))
@@ -48,20 +48,20 @@
       }
   
       bb3: {
-          StorageDead(_2);                 // bb3[0]: scope 0 at $DIR/simplify_if.rs:7:15: 7:16
-          _0 = const ();                   // bb3[1]: scope 0 at $DIR/simplify_if.rs:6:14: 8:6
+          StorageDead(_2);                 // scope 0 at $DIR/simplify_if.rs:7:15: 7:16
+          _0 = const ();                   // scope 0 at $DIR/simplify_if.rs:6:14: 8:6
                                            // ty::Const
                                            // + ty: ()
                                            // + val: Value(Scalar(<ZST>))
                                            // mir::Constant
                                            // + span: $DIR/simplify_if.rs:6:14: 8:6
                                            // + literal: Const { ty: (), val: Value(Scalar(<ZST>)) }
-          goto -> bb4;                     // bb3[2]: scope 0 at $DIR/simplify_if.rs:6:5: 8:6
+          goto -> bb4;                     // scope 0 at $DIR/simplify_if.rs:6:5: 8:6
       }
   
       bb4: {
-          StorageDead(_1);                 // bb4[0]: scope 0 at $DIR/simplify_if.rs:9:1: 9:2
-          return;                          // bb4[1]: scope 0 at $DIR/simplify_if.rs:9:2: 9:2
+          StorageDead(_1);                 // scope 0 at $DIR/simplify_if.rs:9:1: 9:2
+          return;                          // scope 0 at $DIR/simplify_if.rs:9:2: 9:2
       }
   }
   
diff --git a/src/test/mir-opt/simplify_match/rustc.main.SimplifyBranches-after-copy-prop.diff b/src/test/mir-opt/simplify_match/rustc.main.SimplifyBranches-after-copy-prop.diff
index 1c83bb13425..68b1b70c52a 100644
--- a/src/test/mir-opt/simplify_match/rustc.main.SimplifyBranches-after-copy-prop.diff
+++ b/src/test/mir-opt/simplify_match/rustc.main.SimplifyBranches-after-copy-prop.diff
@@ -10,34 +10,34 @@
       }
   
       bb0: {
-          nop;                             // bb0[0]: scope 0 at $DIR/simplify_match.rs:6:11: 6:31
-          nop;                             // bb0[1]: scope 0 at $DIR/simplify_match.rs:6:17: 6:18
-          nop;                             // bb0[2]: scope 0 at $DIR/simplify_match.rs:6:21: 6:26
-          nop;                             // bb0[3]: scope 1 at $DIR/simplify_match.rs:6:28: 6:29
-          nop;                             // bb0[4]: scope 0 at $DIR/simplify_match.rs:6:30: 6:31
--         switchInt(const false) -> [false: bb1, otherwise: bb2]; // bb0[5]: scope 0 at $DIR/simplify_match.rs:7:9: 7:13
+          nop;                             // scope 0 at $DIR/simplify_match.rs:6:11: 6:31
+          nop;                             // scope 0 at $DIR/simplify_match.rs:6:17: 6:18
+          nop;                             // scope 0 at $DIR/simplify_match.rs:6:21: 6:26
+          nop;                             // scope 1 at $DIR/simplify_match.rs:6:28: 6:29
+          nop;                             // scope 0 at $DIR/simplify_match.rs:6:30: 6:31
+-         switchInt(const false) -> [false: bb1, otherwise: bb2]; // scope 0 at $DIR/simplify_match.rs:7:9: 7:13
 -                                          // ty::Const
 -                                          // + ty: bool
 -                                          // + val: Value(Scalar(0x00))
 -                                          // mir::Constant
 -                                          // + span: $DIR/simplify_match.rs:6:21: 6:26
 -                                          // + literal: Const { ty: bool, val: Value(Scalar(0x00)) }
-+         goto -> bb1;                     // bb0[5]: scope 0 at $DIR/simplify_match.rs:7:9: 7:13
++         goto -> bb1;                     // scope 0 at $DIR/simplify_match.rs:7:9: 7:13
       }
   
       bb1: {
-          _0 = const ();                   // bb1[0]: scope 0 at $DIR/simplify_match.rs:8:18: 8:20
+          _0 = const ();                   // scope 0 at $DIR/simplify_match.rs:8:18: 8:20
                                            // ty::Const
                                            // + ty: ()
                                            // + val: Value(Scalar(<ZST>))
                                            // mir::Constant
                                            // + span: $DIR/simplify_match.rs:8:18: 8:20
                                            // + literal: Const { ty: (), val: Value(Scalar(<ZST>)) }
-          goto -> bb3;                     // bb1[1]: scope 0 at $DIR/simplify_match.rs:6:5: 9:6
+          goto -> bb3;                     // scope 0 at $DIR/simplify_match.rs:6:5: 9:6
       }
   
       bb2: {
-          _0 = const noop() -> bb3;        // bb2[0]: scope 0 at $DIR/simplify_match.rs:7:17: 7:23
+          _0 = const noop() -> bb3;        // scope 0 at $DIR/simplify_match.rs:7:17: 7:23
                                            // ty::Const
                                            // + ty: fn() {noop}
                                            // + val: Value(Scalar(<ZST>))
@@ -47,8 +47,8 @@
       }
   
       bb3: {
-          nop;                             // bb3[0]: scope 0 at $DIR/simplify_match.rs:10:1: 10:2
-          return;                          // bb3[1]: scope 0 at $DIR/simplify_match.rs:10:2: 10:2
+          nop;                             // scope 0 at $DIR/simplify_match.rs:10:1: 10:2
+          return;                          // scope 0 at $DIR/simplify_match.rs:10:2: 10:2
       }
   }
   
diff --git a/src/test/mir-opt/simplify_try/rustc.try_identity.SimplifyArmIdentity.diff b/src/test/mir-opt/simplify_try/rustc.try_identity.SimplifyArmIdentity.diff
index a4cc6b817ea..20520f7db36 100644
--- a/src/test/mir-opt/simplify_try/rustc.try_identity.SimplifyArmIdentity.diff
+++ b/src/test/mir-opt/simplify_try/rustc.try_identity.SimplifyArmIdentity.diff
@@ -39,32 +39,32 @@
       }
   
       bb0: {
-          _5 = discriminant(_1);           // bb0[0]: scope 0 at $DIR/simplify_try.rs:6:14: 6:15
-          switchInt(move _5) -> [0isize: bb1, otherwise: bb2]; // bb0[1]: scope 0 at $DIR/simplify_try.rs:6:14: 6:15
+          _5 = discriminant(_1);           // scope 0 at $DIR/simplify_try.rs:6:14: 6:15
+          switchInt(move _5) -> [0isize: bb1, otherwise: bb2]; // scope 0 at $DIR/simplify_try.rs:6:14: 6:15
       }
   
       bb1: {
--         _10 = ((_1 as Ok).0: u32);       // bb1[0]: scope 0 at $DIR/simplify_try.rs:6:13: 6:15
--         ((_0 as Ok).0: u32) = move _10;  // bb1[1]: scope 1 at $DIR/simplify_try.rs:7:5: 7:10
--         discriminant(_0) = 0;            // bb1[2]: scope 1 at $DIR/simplify_try.rs:7:5: 7:10
-+         _0 = move _1;                    // bb1[0]: scope 1 at $DIR/simplify_try.rs:7:5: 7:10
-+         nop;                             // bb1[1]: scope 1 at $DIR/simplify_try.rs:7:5: 7:10
-+         nop;                             // bb1[2]: scope 1 at $DIR/simplify_try.rs:7:5: 7:10
-          goto -> bb3;                     // bb1[3]: scope 0 at $DIR/simplify_try.rs:8:2: 8:2
+-         _10 = ((_1 as Ok).0: u32);       // scope 0 at $DIR/simplify_try.rs:6:13: 6:15
+-         ((_0 as Ok).0: u32) = move _10;  // scope 1 at $DIR/simplify_try.rs:7:5: 7:10
+-         discriminant(_0) = 0;            // scope 1 at $DIR/simplify_try.rs:7:5: 7:10
++         _0 = move _1;                    // scope 1 at $DIR/simplify_try.rs:7:5: 7:10
++         nop;                             // scope 1 at $DIR/simplify_try.rs:7:5: 7:10
++         nop;                             // scope 1 at $DIR/simplify_try.rs:7:5: 7:10
+          goto -> bb3;                     // scope 0 at $DIR/simplify_try.rs:8:2: 8:2
       }
   
       bb2: {
--         _6 = ((_1 as Err).0: i32);       // bb2[0]: scope 0 at $DIR/simplify_try.rs:6:14: 6:15
--         ((_0 as Err).0: i32) = move _6;  // bb2[1]: scope 8 at $SRC_DIR/libcore/result.rs:LL:COL
--         discriminant(_0) = 1;            // bb2[2]: scope 8 at $SRC_DIR/libcore/result.rs:LL:COL
-+         _0 = move _1;                    // bb2[0]: scope 8 at $SRC_DIR/libcore/result.rs:LL:COL
-+         nop;                             // bb2[1]: scope 8 at $SRC_DIR/libcore/result.rs:LL:COL
-+         nop;                             // bb2[2]: scope 8 at $SRC_DIR/libcore/result.rs:LL:COL
-          goto -> bb3;                     // bb2[3]: scope 0 at $DIR/simplify_try.rs:6:14: 6:15
+-         _6 = ((_1 as Err).0: i32);       // scope 0 at $DIR/simplify_try.rs:6:14: 6:15
+-         ((_0 as Err).0: i32) = move _6;  // scope 8 at $SRC_DIR/libcore/result.rs:LL:COL
+-         discriminant(_0) = 1;            // scope 8 at $SRC_DIR/libcore/result.rs:LL:COL
++         _0 = move _1;                    // scope 8 at $SRC_DIR/libcore/result.rs:LL:COL
++         nop;                             // scope 8 at $SRC_DIR/libcore/result.rs:LL:COL
++         nop;                             // scope 8 at $SRC_DIR/libcore/result.rs:LL:COL
+          goto -> bb3;                     // scope 0 at $DIR/simplify_try.rs:6:14: 6:15
       }
   
       bb3: {
-          return;                          // bb3[0]: scope 0 at $DIR/simplify_try.rs:8:2: 8:2
+          return;                          // scope 0 at $DIR/simplify_try.rs:8:2: 8:2
       }
   }
   
diff --git a/src/test/mir-opt/simplify_try/rustc.try_identity.SimplifyBranchSame.after.mir b/src/test/mir-opt/simplify_try/rustc.try_identity.SimplifyBranchSame.after.mir
index a18fb641f94..e5661a47201 100644
--- a/src/test/mir-opt/simplify_try/rustc.try_identity.SimplifyBranchSame.after.mir
+++ b/src/test/mir-opt/simplify_try/rustc.try_identity.SimplifyBranchSame.after.mir
@@ -38,18 +38,18 @@ fn try_identity(_1: std::result::Result<u32, i32>) -> std::result::Result<u32, i
     }
 
     bb0: {
-        _5 = discriminant(_1);           // bb0[0]: scope 0 at $DIR/simplify_try.rs:6:14: 6:15
-        goto -> bb1;                     // bb0[1]: scope 0 at $DIR/simplify_try.rs:6:14: 6:15
+        _5 = discriminant(_1);           // scope 0 at $DIR/simplify_try.rs:6:14: 6:15
+        goto -> bb1;                     // scope 0 at $DIR/simplify_try.rs:6:14: 6:15
     }
 
     bb1: {
-        _0 = move _1;                    // bb1[0]: scope 1 at $DIR/simplify_try.rs:7:5: 7:10
-        nop;                             // bb1[1]: scope 1 at $DIR/simplify_try.rs:7:5: 7:10
-        nop;                             // bb1[2]: scope 1 at $DIR/simplify_try.rs:7:5: 7:10
-        goto -> bb2;                     // bb1[3]: scope 0 at $DIR/simplify_try.rs:8:2: 8:2
+        _0 = move _1;                    // scope 1 at $DIR/simplify_try.rs:7:5: 7:10
+        nop;                             // scope 1 at $DIR/simplify_try.rs:7:5: 7:10
+        nop;                             // scope 1 at $DIR/simplify_try.rs:7:5: 7:10
+        goto -> bb2;                     // scope 0 at $DIR/simplify_try.rs:8:2: 8:2
     }
 
     bb2: {
-        return;                          // bb2[0]: scope 0 at $DIR/simplify_try.rs:8:2: 8:2
+        return;                          // scope 0 at $DIR/simplify_try.rs:8:2: 8:2
     }
 }
diff --git a/src/test/mir-opt/simplify_try/rustc.try_identity.SimplifyLocals.after.mir b/src/test/mir-opt/simplify_try/rustc.try_identity.SimplifyLocals.after.mir
index b7ed760f6d6..989931ed0ea 100644
--- a/src/test/mir-opt/simplify_try/rustc.try_identity.SimplifyLocals.after.mir
+++ b/src/test/mir-opt/simplify_try/rustc.try_identity.SimplifyLocals.after.mir
@@ -29,7 +29,7 @@ fn try_identity(_1: std::result::Result<u32, i32>) -> std::result::Result<u32, i
     }
 
     bb0: {
-        _0 = move _1;                    // bb0[0]: scope 1 at $DIR/simplify_try.rs:7:5: 7:10
-        return;                          // bb0[1]: scope 0 at $DIR/simplify_try.rs:8:2: 8:2
+        _0 = move _1;                    // scope 1 at $DIR/simplify_try.rs:7:5: 7:10
+        return;                          // scope 0 at $DIR/simplify_try.rs:8:2: 8:2
     }
 }
diff --git a/src/test/mir-opt/slice-drop-shim/32bit/rustc.ptr-drop_in_place.[std__string__String].AddMovesForPackedDrops.before.mir b/src/test/mir-opt/slice-drop-shim/32bit/rustc.ptr-drop_in_place.[std__string__String].AddMovesForPackedDrops.before.mir
index e397adcc2cc..e79dcba13b0 100644
--- a/src/test/mir-opt/slice-drop-shim/32bit/rustc.ptr-drop_in_place.[std__string__String].AddMovesForPackedDrops.before.mir
+++ b/src/test/mir-opt/slice-drop-shim/32bit/rustc.ptr-drop_in_place.[std__string__String].AddMovesForPackedDrops.before.mir
@@ -18,114 +18,114 @@ fn std::intrinsics::drop_in_place(_1: *mut [std::string::String]) -> () {
     let mut _15: *mut [std::string::String]; // in scope 0 at $SRC_DIR/libcore/ptr/mod.rs:LL:COL
 
     bb0: {
-        goto -> bb15;                    // bb0[0]: scope 0 at $SRC_DIR/libcore/ptr/mod.rs:LL:COL
+        goto -> bb15;                    // scope 0 at $SRC_DIR/libcore/ptr/mod.rs:LL:COL
     }
 
     bb1: {
-        return;                          // bb1[0]: scope 0 at $SRC_DIR/libcore/ptr/mod.rs:LL:COL
+        return;                          // scope 0 at $SRC_DIR/libcore/ptr/mod.rs:LL:COL
     }
 
     bb2 (cleanup): {
-        resume;                          // bb2[0]: scope 0 at $SRC_DIR/libcore/ptr/mod.rs:LL:COL
+        resume;                          // scope 0 at $SRC_DIR/libcore/ptr/mod.rs:LL:COL
     }
 
     bb3 (cleanup): {
-        _5 = &raw mut (*_1)[_4];         // bb3[0]: scope 0 at $SRC_DIR/libcore/ptr/mod.rs:LL:COL
-        _4 = Add(move _4, const 1usize); // bb3[1]: scope 0 at $SRC_DIR/libcore/ptr/mod.rs:LL:COL
+        _5 = &raw mut (*_1)[_4];         // scope 0 at $SRC_DIR/libcore/ptr/mod.rs:LL:COL
+        _4 = Add(move _4, const 1usize); // scope 0 at $SRC_DIR/libcore/ptr/mod.rs:LL:COL
                                          // ty::Const
                                          // + ty: usize
                                          // + val: Value(Scalar(0x00000001))
                                          // mir::Constant
                                          // + span: $SRC_DIR/libcore/ptr/mod.rs:LL:COL
                                          // + literal: Const { ty: usize, val: Value(Scalar(0x00000001)) }
-        drop((*_5)) -> bb4;              // bb3[2]: scope 0 at $SRC_DIR/libcore/ptr/mod.rs:LL:COL
+        drop((*_5)) -> bb4;              // scope 0 at $SRC_DIR/libcore/ptr/mod.rs:LL:COL
     }
 
     bb4 (cleanup): {
-        _6 = Eq(_4, _3);                 // bb4[0]: scope 0 at $SRC_DIR/libcore/ptr/mod.rs:LL:COL
-        switchInt(move _6) -> [false: bb3, otherwise: bb2]; // bb4[1]: scope 0 at $SRC_DIR/libcore/ptr/mod.rs:LL:COL
+        _6 = Eq(_4, _3);                 // scope 0 at $SRC_DIR/libcore/ptr/mod.rs:LL:COL
+        switchInt(move _6) -> [false: bb3, otherwise: bb2]; // scope 0 at $SRC_DIR/libcore/ptr/mod.rs:LL:COL
     }
 
     bb5: {
-        _7 = &raw mut (*_1)[_4];         // bb5[0]: scope 0 at $SRC_DIR/libcore/ptr/mod.rs:LL:COL
-        _4 = Add(move _4, const 1usize); // bb5[1]: scope 0 at $SRC_DIR/libcore/ptr/mod.rs:LL:COL
+        _7 = &raw mut (*_1)[_4];         // scope 0 at $SRC_DIR/libcore/ptr/mod.rs:LL:COL
+        _4 = Add(move _4, const 1usize); // scope 0 at $SRC_DIR/libcore/ptr/mod.rs:LL:COL
                                          // ty::Const
                                          // + ty: usize
                                          // + val: Value(Scalar(0x00000001))
                                          // mir::Constant
                                          // + span: $SRC_DIR/libcore/ptr/mod.rs:LL:COL
                                          // + literal: Const { ty: usize, val: Value(Scalar(0x00000001)) }
-        drop((*_7)) -> [return: bb6, unwind: bb4]; // bb5[2]: scope 0 at $SRC_DIR/libcore/ptr/mod.rs:LL:COL
+        drop((*_7)) -> [return: bb6, unwind: bb4]; // scope 0 at $SRC_DIR/libcore/ptr/mod.rs:LL:COL
     }
 
     bb6: {
-        _8 = Eq(_4, _3);                 // bb6[0]: scope 0 at $SRC_DIR/libcore/ptr/mod.rs:LL:COL
-        switchInt(move _8) -> [false: bb5, otherwise: bb1]; // bb6[1]: scope 0 at $SRC_DIR/libcore/ptr/mod.rs:LL:COL
+        _8 = Eq(_4, _3);                 // scope 0 at $SRC_DIR/libcore/ptr/mod.rs:LL:COL
+        switchInt(move _8) -> [false: bb5, otherwise: bb1]; // scope 0 at $SRC_DIR/libcore/ptr/mod.rs:LL:COL
     }
 
     bb7: {
-        _4 = const 0usize;               // bb7[0]: scope 0 at $SRC_DIR/libcore/ptr/mod.rs:LL:COL
+        _4 = const 0usize;               // scope 0 at $SRC_DIR/libcore/ptr/mod.rs:LL:COL
                                          // ty::Const
                                          // + ty: usize
                                          // + val: Value(Scalar(0x00000000))
                                          // mir::Constant
                                          // + span: $SRC_DIR/libcore/ptr/mod.rs:LL:COL
                                          // + literal: Const { ty: usize, val: Value(Scalar(0x00000000)) }
-        goto -> bb6;                     // bb7[1]: scope 0 at $SRC_DIR/libcore/ptr/mod.rs:LL:COL
+        goto -> bb6;                     // scope 0 at $SRC_DIR/libcore/ptr/mod.rs:LL:COL
     }
 
     bb8: {
-        goto -> bb7;                     // bb8[0]: scope 0 at $SRC_DIR/libcore/ptr/mod.rs:LL:COL
+        goto -> bb7;                     // scope 0 at $SRC_DIR/libcore/ptr/mod.rs:LL:COL
     }
 
     bb9 (cleanup): {
-        _11 = _9;                        // bb9[0]: scope 0 at $SRC_DIR/libcore/ptr/mod.rs:LL:COL
-        _9 = Offset(move _9, const 1usize); // bb9[1]: scope 0 at $SRC_DIR/libcore/ptr/mod.rs:LL:COL
+        _11 = _9;                        // scope 0 at $SRC_DIR/libcore/ptr/mod.rs:LL:COL
+        _9 = Offset(move _9, const 1usize); // scope 0 at $SRC_DIR/libcore/ptr/mod.rs:LL:COL
                                          // ty::Const
                                          // + ty: usize
                                          // + val: Value(Scalar(0x00000001))
                                          // mir::Constant
                                          // + span: $SRC_DIR/libcore/ptr/mod.rs:LL:COL
                                          // + literal: Const { ty: usize, val: Value(Scalar(0x00000001)) }
-        drop((*_11)) -> bb10;            // bb9[2]: scope 0 at $SRC_DIR/libcore/ptr/mod.rs:LL:COL
+        drop((*_11)) -> bb10;            // scope 0 at $SRC_DIR/libcore/ptr/mod.rs:LL:COL
     }
 
     bb10 (cleanup): {
-        _12 = Eq(_9, _10);               // bb10[0]: scope 0 at $SRC_DIR/libcore/ptr/mod.rs:LL:COL
-        switchInt(move _12) -> [false: bb9, otherwise: bb2]; // bb10[1]: scope 0 at $SRC_DIR/libcore/ptr/mod.rs:LL:COL
+        _12 = Eq(_9, _10);               // scope 0 at $SRC_DIR/libcore/ptr/mod.rs:LL:COL
+        switchInt(move _12) -> [false: bb9, otherwise: bb2]; // scope 0 at $SRC_DIR/libcore/ptr/mod.rs:LL:COL
     }
 
     bb11: {
-        _13 = _9;                        // bb11[0]: scope 0 at $SRC_DIR/libcore/ptr/mod.rs:LL:COL
-        _9 = Offset(move _9, const 1usize); // bb11[1]: scope 0 at $SRC_DIR/libcore/ptr/mod.rs:LL:COL
+        _13 = _9;                        // scope 0 at $SRC_DIR/libcore/ptr/mod.rs:LL:COL
+        _9 = Offset(move _9, const 1usize); // scope 0 at $SRC_DIR/libcore/ptr/mod.rs:LL:COL
                                          // ty::Const
                                          // + ty: usize
                                          // + val: Value(Scalar(0x00000001))
                                          // mir::Constant
                                          // + span: $SRC_DIR/libcore/ptr/mod.rs:LL:COL
                                          // + literal: Const { ty: usize, val: Value(Scalar(0x00000001)) }
-        drop((*_13)) -> [return: bb12, unwind: bb10]; // bb11[2]: scope 0 at $SRC_DIR/libcore/ptr/mod.rs:LL:COL
+        drop((*_13)) -> [return: bb12, unwind: bb10]; // scope 0 at $SRC_DIR/libcore/ptr/mod.rs:LL:COL
     }
 
     bb12: {
-        _14 = Eq(_9, _10);               // bb12[0]: scope 0 at $SRC_DIR/libcore/ptr/mod.rs:LL:COL
-        switchInt(move _14) -> [false: bb11, otherwise: bb1]; // bb12[1]: scope 0 at $SRC_DIR/libcore/ptr/mod.rs:LL:COL
+        _14 = Eq(_9, _10);               // scope 0 at $SRC_DIR/libcore/ptr/mod.rs:LL:COL
+        switchInt(move _14) -> [false: bb11, otherwise: bb1]; // scope 0 at $SRC_DIR/libcore/ptr/mod.rs:LL:COL
     }
 
     bb13: {
-        _15 = &raw mut (*_1);            // bb13[0]: scope 0 at $SRC_DIR/libcore/ptr/mod.rs:LL:COL
-        _9 = move _15 as *mut std::string::String (Misc); // bb13[1]: scope 0 at $SRC_DIR/libcore/ptr/mod.rs:LL:COL
-        _10 = Offset(_9, move _3);       // bb13[2]: scope 0 at $SRC_DIR/libcore/ptr/mod.rs:LL:COL
-        goto -> bb12;                    // bb13[3]: scope 0 at $SRC_DIR/libcore/ptr/mod.rs:LL:COL
+        _15 = &raw mut (*_1);            // scope 0 at $SRC_DIR/libcore/ptr/mod.rs:LL:COL
+        _9 = move _15 as *mut std::string::String (Misc); // scope 0 at $SRC_DIR/libcore/ptr/mod.rs:LL:COL
+        _10 = Offset(_9, move _3);       // scope 0 at $SRC_DIR/libcore/ptr/mod.rs:LL:COL
+        goto -> bb12;                    // scope 0 at $SRC_DIR/libcore/ptr/mod.rs:LL:COL
     }
 
     bb14: {
-        goto -> bb13;                    // bb14[0]: scope 0 at $SRC_DIR/libcore/ptr/mod.rs:LL:COL
+        goto -> bb13;                    // scope 0 at $SRC_DIR/libcore/ptr/mod.rs:LL:COL
     }
 
     bb15: {
-        _2 = SizeOf(std::string::String); // bb15[0]: scope 0 at $SRC_DIR/libcore/ptr/mod.rs:LL:COL
-        _3 = Len((*_1));                 // bb15[1]: scope 0 at $SRC_DIR/libcore/ptr/mod.rs:LL:COL
-        switchInt(move _2) -> [0usize: bb8, otherwise: bb14]; // bb15[2]: scope 0 at $SRC_DIR/libcore/ptr/mod.rs:LL:COL
+        _2 = SizeOf(std::string::String); // scope 0 at $SRC_DIR/libcore/ptr/mod.rs:LL:COL
+        _3 = Len((*_1));                 // scope 0 at $SRC_DIR/libcore/ptr/mod.rs:LL:COL
+        switchInt(move _2) -> [0usize: bb8, otherwise: bb14]; // scope 0 at $SRC_DIR/libcore/ptr/mod.rs:LL:COL
     }
 }
diff --git a/src/test/mir-opt/slice-drop-shim/64bit/rustc.ptr-drop_in_place.[std__string__String].AddMovesForPackedDrops.before.mir b/src/test/mir-opt/slice-drop-shim/64bit/rustc.ptr-drop_in_place.[std__string__String].AddMovesForPackedDrops.before.mir
index fd2bfe46c5a..604a0228f63 100644
--- a/src/test/mir-opt/slice-drop-shim/64bit/rustc.ptr-drop_in_place.[std__string__String].AddMovesForPackedDrops.before.mir
+++ b/src/test/mir-opt/slice-drop-shim/64bit/rustc.ptr-drop_in_place.[std__string__String].AddMovesForPackedDrops.before.mir
@@ -18,114 +18,114 @@ fn std::intrinsics::drop_in_place(_1: *mut [std::string::String]) -> () {
     let mut _15: *mut [std::string::String]; // in scope 0 at $SRC_DIR/libcore/ptr/mod.rs:LL:COL
 
     bb0: {
-        goto -> bb15;                    // bb0[0]: scope 0 at $SRC_DIR/libcore/ptr/mod.rs:LL:COL
+        goto -> bb15;                    // scope 0 at $SRC_DIR/libcore/ptr/mod.rs:LL:COL
     }
 
     bb1: {
-        return;                          // bb1[0]: scope 0 at $SRC_DIR/libcore/ptr/mod.rs:LL:COL
+        return;                          // scope 0 at $SRC_DIR/libcore/ptr/mod.rs:LL:COL
     }
 
     bb2 (cleanup): {
-        resume;                          // bb2[0]: scope 0 at $SRC_DIR/libcore/ptr/mod.rs:LL:COL
+        resume;                          // scope 0 at $SRC_DIR/libcore/ptr/mod.rs:LL:COL
     }
 
     bb3 (cleanup): {
-        _5 = &raw mut (*_1)[_4];         // bb3[0]: scope 0 at $SRC_DIR/libcore/ptr/mod.rs:LL:COL
-        _4 = Add(move _4, const 1usize); // bb3[1]: scope 0 at $SRC_DIR/libcore/ptr/mod.rs:LL:COL
+        _5 = &raw mut (*_1)[_4];         // scope 0 at $SRC_DIR/libcore/ptr/mod.rs:LL:COL
+        _4 = Add(move _4, const 1usize); // scope 0 at $SRC_DIR/libcore/ptr/mod.rs:LL:COL
                                          // ty::Const
                                          // + ty: usize
                                          // + val: Value(Scalar(0x0000000000000001))
                                          // mir::Constant
                                          // + span: $SRC_DIR/libcore/ptr/mod.rs:LL:COL
                                          // + literal: Const { ty: usize, val: Value(Scalar(0x0000000000000001)) }
-        drop((*_5)) -> bb4;              // bb3[2]: scope 0 at $SRC_DIR/libcore/ptr/mod.rs:LL:COL
+        drop((*_5)) -> bb4;              // scope 0 at $SRC_DIR/libcore/ptr/mod.rs:LL:COL
     }
 
     bb4 (cleanup): {
-        _6 = Eq(_4, _3);                 // bb4[0]: scope 0 at $SRC_DIR/libcore/ptr/mod.rs:LL:COL
-        switchInt(move _6) -> [false: bb3, otherwise: bb2]; // bb4[1]: scope 0 at $SRC_DIR/libcore/ptr/mod.rs:LL:COL
+        _6 = Eq(_4, _3);                 // scope 0 at $SRC_DIR/libcore/ptr/mod.rs:LL:COL
+        switchInt(move _6) -> [false: bb3, otherwise: bb2]; // scope 0 at $SRC_DIR/libcore/ptr/mod.rs:LL:COL
     }
 
     bb5: {
-        _7 = &raw mut (*_1)[_4];         // bb5[0]: scope 0 at $SRC_DIR/libcore/ptr/mod.rs:LL:COL
-        _4 = Add(move _4, const 1usize); // bb5[1]: scope 0 at $SRC_DIR/libcore/ptr/mod.rs:LL:COL
+        _7 = &raw mut (*_1)[_4];         // scope 0 at $SRC_DIR/libcore/ptr/mod.rs:LL:COL
+        _4 = Add(move _4, const 1usize); // scope 0 at $SRC_DIR/libcore/ptr/mod.rs:LL:COL
                                          // ty::Const
                                          // + ty: usize
                                          // + val: Value(Scalar(0x0000000000000001))
                                          // mir::Constant
                                          // + span: $SRC_DIR/libcore/ptr/mod.rs:LL:COL
                                          // + literal: Const { ty: usize, val: Value(Scalar(0x0000000000000001)) }
-        drop((*_7)) -> [return: bb6, unwind: bb4]; // bb5[2]: scope 0 at $SRC_DIR/libcore/ptr/mod.rs:LL:COL
+        drop((*_7)) -> [return: bb6, unwind: bb4]; // scope 0 at $SRC_DIR/libcore/ptr/mod.rs:LL:COL
     }
 
     bb6: {
-        _8 = Eq(_4, _3);                 // bb6[0]: scope 0 at $SRC_DIR/libcore/ptr/mod.rs:LL:COL
-        switchInt(move _8) -> [false: bb5, otherwise: bb1]; // bb6[1]: scope 0 at $SRC_DIR/libcore/ptr/mod.rs:LL:COL
+        _8 = Eq(_4, _3);                 // scope 0 at $SRC_DIR/libcore/ptr/mod.rs:LL:COL
+        switchInt(move _8) -> [false: bb5, otherwise: bb1]; // scope 0 at $SRC_DIR/libcore/ptr/mod.rs:LL:COL
     }
 
     bb7: {
-        _4 = const 0usize;               // bb7[0]: scope 0 at $SRC_DIR/libcore/ptr/mod.rs:LL:COL
+        _4 = const 0usize;               // scope 0 at $SRC_DIR/libcore/ptr/mod.rs:LL:COL
                                          // ty::Const
                                          // + ty: usize
                                          // + val: Value(Scalar(0x0000000000000000))
                                          // mir::Constant
                                          // + span: $SRC_DIR/libcore/ptr/mod.rs:LL:COL
                                          // + literal: Const { ty: usize, val: Value(Scalar(0x0000000000000000)) }
-        goto -> bb6;                     // bb7[1]: scope 0 at $SRC_DIR/libcore/ptr/mod.rs:LL:COL
+        goto -> bb6;                     // scope 0 at $SRC_DIR/libcore/ptr/mod.rs:LL:COL
     }
 
     bb8: {
-        goto -> bb7;                     // bb8[0]: scope 0 at $SRC_DIR/libcore/ptr/mod.rs:LL:COL
+        goto -> bb7;                     // scope 0 at $SRC_DIR/libcore/ptr/mod.rs:LL:COL
     }
 
     bb9 (cleanup): {
-        _11 = _9;                        // bb9[0]: scope 0 at $SRC_DIR/libcore/ptr/mod.rs:LL:COL
-        _9 = Offset(move _9, const 1usize); // bb9[1]: scope 0 at $SRC_DIR/libcore/ptr/mod.rs:LL:COL
+        _11 = _9;                        // scope 0 at $SRC_DIR/libcore/ptr/mod.rs:LL:COL
+        _9 = Offset(move _9, const 1usize); // scope 0 at $SRC_DIR/libcore/ptr/mod.rs:LL:COL
                                          // ty::Const
                                          // + ty: usize
                                          // + val: Value(Scalar(0x0000000000000001))
                                          // mir::Constant
                                          // + span: $SRC_DIR/libcore/ptr/mod.rs:LL:COL
                                          // + literal: Const { ty: usize, val: Value(Scalar(0x0000000000000001)) }
-        drop((*_11)) -> bb10;            // bb9[2]: scope 0 at $SRC_DIR/libcore/ptr/mod.rs:LL:COL
+        drop((*_11)) -> bb10;            // scope 0 at $SRC_DIR/libcore/ptr/mod.rs:LL:COL
     }
 
     bb10 (cleanup): {
-        _12 = Eq(_9, _10);               // bb10[0]: scope 0 at $SRC_DIR/libcore/ptr/mod.rs:LL:COL
-        switchInt(move _12) -> [false: bb9, otherwise: bb2]; // bb10[1]: scope 0 at $SRC_DIR/libcore/ptr/mod.rs:LL:COL
+        _12 = Eq(_9, _10);               // scope 0 at $SRC_DIR/libcore/ptr/mod.rs:LL:COL
+        switchInt(move _12) -> [false: bb9, otherwise: bb2]; // scope 0 at $SRC_DIR/libcore/ptr/mod.rs:LL:COL
     }
 
     bb11: {
-        _13 = _9;                        // bb11[0]: scope 0 at $SRC_DIR/libcore/ptr/mod.rs:LL:COL
-        _9 = Offset(move _9, const 1usize); // bb11[1]: scope 0 at $SRC_DIR/libcore/ptr/mod.rs:LL:COL
+        _13 = _9;                        // scope 0 at $SRC_DIR/libcore/ptr/mod.rs:LL:COL
+        _9 = Offset(move _9, const 1usize); // scope 0 at $SRC_DIR/libcore/ptr/mod.rs:LL:COL
                                          // ty::Const
                                          // + ty: usize
                                          // + val: Value(Scalar(0x0000000000000001))
                                          // mir::Constant
                                          // + span: $SRC_DIR/libcore/ptr/mod.rs:LL:COL
                                          // + literal: Const { ty: usize, val: Value(Scalar(0x0000000000000001)) }
-        drop((*_13)) -> [return: bb12, unwind: bb10]; // bb11[2]: scope 0 at $SRC_DIR/libcore/ptr/mod.rs:LL:COL
+        drop((*_13)) -> [return: bb12, unwind: bb10]; // scope 0 at $SRC_DIR/libcore/ptr/mod.rs:LL:COL
     }
 
     bb12: {
-        _14 = Eq(_9, _10);               // bb12[0]: scope 0 at $SRC_DIR/libcore/ptr/mod.rs:LL:COL
-        switchInt(move _14) -> [false: bb11, otherwise: bb1]; // bb12[1]: scope 0 at $SRC_DIR/libcore/ptr/mod.rs:LL:COL
+        _14 = Eq(_9, _10);               // scope 0 at $SRC_DIR/libcore/ptr/mod.rs:LL:COL
+        switchInt(move _14) -> [false: bb11, otherwise: bb1]; // scope 0 at $SRC_DIR/libcore/ptr/mod.rs:LL:COL
     }
 
     bb13: {
-        _15 = &raw mut (*_1);            // bb13[0]: scope 0 at $SRC_DIR/libcore/ptr/mod.rs:LL:COL
-        _9 = move _15 as *mut std::string::String (Misc); // bb13[1]: scope 0 at $SRC_DIR/libcore/ptr/mod.rs:LL:COL
-        _10 = Offset(_9, move _3);       // bb13[2]: scope 0 at $SRC_DIR/libcore/ptr/mod.rs:LL:COL
-        goto -> bb12;                    // bb13[3]: scope 0 at $SRC_DIR/libcore/ptr/mod.rs:LL:COL
+        _15 = &raw mut (*_1);            // scope 0 at $SRC_DIR/libcore/ptr/mod.rs:LL:COL
+        _9 = move _15 as *mut std::string::String (Misc); // scope 0 at $SRC_DIR/libcore/ptr/mod.rs:LL:COL
+        _10 = Offset(_9, move _3);       // scope 0 at $SRC_DIR/libcore/ptr/mod.rs:LL:COL
+        goto -> bb12;                    // scope 0 at $SRC_DIR/libcore/ptr/mod.rs:LL:COL
     }
 
     bb14: {
-        goto -> bb13;                    // bb14[0]: scope 0 at $SRC_DIR/libcore/ptr/mod.rs:LL:COL
+        goto -> bb13;                    // scope 0 at $SRC_DIR/libcore/ptr/mod.rs:LL:COL
     }
 
     bb15: {
-        _2 = SizeOf(std::string::String); // bb15[0]: scope 0 at $SRC_DIR/libcore/ptr/mod.rs:LL:COL
-        _3 = Len((*_1));                 // bb15[1]: scope 0 at $SRC_DIR/libcore/ptr/mod.rs:LL:COL
-        switchInt(move _2) -> [0usize: bb8, otherwise: bb14]; // bb15[2]: scope 0 at $SRC_DIR/libcore/ptr/mod.rs:LL:COL
+        _2 = SizeOf(std::string::String); // scope 0 at $SRC_DIR/libcore/ptr/mod.rs:LL:COL
+        _3 = Len((*_1));                 // scope 0 at $SRC_DIR/libcore/ptr/mod.rs:LL:COL
+        switchInt(move _2) -> [0usize: bb8, otherwise: bb14]; // scope 0 at $SRC_DIR/libcore/ptr/mod.rs:LL:COL
     }
 }
diff --git a/src/test/mir-opt/storage_live_dead_in_statics/rustc.XXX.mir_map.0.mir b/src/test/mir-opt/storage_live_dead_in_statics/rustc.XXX.mir_map.0.mir
index 5ea1e431d19..e7815da73aa 100644
--- a/src/test/mir-opt/storage_live_dead_in_statics/rustc.XXX.mir_map.0.mir
+++ b/src/test/mir-opt/storage_live_dead_in_statics/rustc.XXX.mir_map.0.mir
@@ -52,14 +52,14 @@ static XXX: &Foo = {
     let mut _48: (u32, u32);             // in scope 0 at $DIR/storage_live_dead_in_statics.rs:21:25: 21:31
 
     bb0: {
-        StorageLive(_1);                 // bb0[0]: scope 0 at $DIR/storage_live_dead_in_statics.rs:5:28: 23:2
-        StorageLive(_2);                 // bb0[1]: scope 0 at $DIR/storage_live_dead_in_statics.rs:5:29: 23:2
-        StorageLive(_3);                 // bb0[2]: scope 0 at $DIR/storage_live_dead_in_statics.rs:7:11: 22:6
-        StorageLive(_4);                 // bb0[3]: scope 0 at $DIR/storage_live_dead_in_statics.rs:7:11: 22:6
-        StorageLive(_5);                 // bb0[4]: scope 0 at $DIR/storage_live_dead_in_statics.rs:7:11: 22:6
-        StorageLive(_6);                 // bb0[5]: scope 0 at $DIR/storage_live_dead_in_statics.rs:7:12: 22:6
-        StorageLive(_7);                 // bb0[6]: scope 0 at $DIR/storage_live_dead_in_statics.rs:8:9: 8:15
-        _7 = (const 0u32, const 1u32);   // bb0[7]: scope 0 at $DIR/storage_live_dead_in_statics.rs:8:9: 8:15
+        StorageLive(_1);                 // scope 0 at $DIR/storage_live_dead_in_statics.rs:5:28: 23:2
+        StorageLive(_2);                 // scope 0 at $DIR/storage_live_dead_in_statics.rs:5:29: 23:2
+        StorageLive(_3);                 // scope 0 at $DIR/storage_live_dead_in_statics.rs:7:11: 22:6
+        StorageLive(_4);                 // scope 0 at $DIR/storage_live_dead_in_statics.rs:7:11: 22:6
+        StorageLive(_5);                 // scope 0 at $DIR/storage_live_dead_in_statics.rs:7:11: 22:6
+        StorageLive(_6);                 // scope 0 at $DIR/storage_live_dead_in_statics.rs:7:12: 22:6
+        StorageLive(_7);                 // scope 0 at $DIR/storage_live_dead_in_statics.rs:8:9: 8:15
+        _7 = (const 0u32, const 1u32);   // scope 0 at $DIR/storage_live_dead_in_statics.rs:8:9: 8:15
                                          // ty::Const
                                          // + ty: u32
                                          // + val: Value(Scalar(0x00000000))
@@ -72,8 +72,8 @@ static XXX: &Foo = {
                                          // mir::Constant
                                          // + span: $DIR/storage_live_dead_in_statics.rs:8:13: 8:14
                                          // + literal: Const { ty: u32, val: Value(Scalar(0x00000001)) }
-        StorageLive(_8);                 // bb0[8]: scope 0 at $DIR/storage_live_dead_in_statics.rs:8:17: 8:23
-        _8 = (const 0u32, const 2u32);   // bb0[9]: scope 0 at $DIR/storage_live_dead_in_statics.rs:8:17: 8:23
+        StorageLive(_8);                 // scope 0 at $DIR/storage_live_dead_in_statics.rs:8:17: 8:23
+        _8 = (const 0u32, const 2u32);   // scope 0 at $DIR/storage_live_dead_in_statics.rs:8:17: 8:23
                                          // ty::Const
                                          // + ty: u32
                                          // + val: Value(Scalar(0x00000000))
@@ -86,8 +86,8 @@ static XXX: &Foo = {
                                          // mir::Constant
                                          // + span: $DIR/storage_live_dead_in_statics.rs:8:21: 8:22
                                          // + literal: Const { ty: u32, val: Value(Scalar(0x00000002)) }
-        StorageLive(_9);                 // bb0[10]: scope 0 at $DIR/storage_live_dead_in_statics.rs:8:25: 8:31
-        _9 = (const 0u32, const 3u32);   // bb0[11]: scope 0 at $DIR/storage_live_dead_in_statics.rs:8:25: 8:31
+        StorageLive(_9);                 // scope 0 at $DIR/storage_live_dead_in_statics.rs:8:25: 8:31
+        _9 = (const 0u32, const 3u32);   // scope 0 at $DIR/storage_live_dead_in_statics.rs:8:25: 8:31
                                          // ty::Const
                                          // + ty: u32
                                          // + val: Value(Scalar(0x00000000))
@@ -100,8 +100,8 @@ static XXX: &Foo = {
                                          // mir::Constant
                                          // + span: $DIR/storage_live_dead_in_statics.rs:8:29: 8:30
                                          // + literal: Const { ty: u32, val: Value(Scalar(0x00000003)) }
-        StorageLive(_10);                // bb0[12]: scope 0 at $DIR/storage_live_dead_in_statics.rs:9:9: 9:15
-        _10 = (const 0u32, const 1u32);  // bb0[13]: scope 0 at $DIR/storage_live_dead_in_statics.rs:9:9: 9:15
+        StorageLive(_10);                // scope 0 at $DIR/storage_live_dead_in_statics.rs:9:9: 9:15
+        _10 = (const 0u32, const 1u32);  // scope 0 at $DIR/storage_live_dead_in_statics.rs:9:9: 9:15
                                          // ty::Const
                                          // + ty: u32
                                          // + val: Value(Scalar(0x00000000))
@@ -114,8 +114,8 @@ static XXX: &Foo = {
                                          // mir::Constant
                                          // + span: $DIR/storage_live_dead_in_statics.rs:9:13: 9:14
                                          // + literal: Const { ty: u32, val: Value(Scalar(0x00000001)) }
-        StorageLive(_11);                // bb0[14]: scope 0 at $DIR/storage_live_dead_in_statics.rs:9:17: 9:23
-        _11 = (const 0u32, const 2u32);  // bb0[15]: scope 0 at $DIR/storage_live_dead_in_statics.rs:9:17: 9:23
+        StorageLive(_11);                // scope 0 at $DIR/storage_live_dead_in_statics.rs:9:17: 9:23
+        _11 = (const 0u32, const 2u32);  // scope 0 at $DIR/storage_live_dead_in_statics.rs:9:17: 9:23
                                          // ty::Const
                                          // + ty: u32
                                          // + val: Value(Scalar(0x00000000))
@@ -128,8 +128,8 @@ static XXX: &Foo = {
                                          // mir::Constant
                                          // + span: $DIR/storage_live_dead_in_statics.rs:9:21: 9:22
                                          // + literal: Const { ty: u32, val: Value(Scalar(0x00000002)) }
-        StorageLive(_12);                // bb0[16]: scope 0 at $DIR/storage_live_dead_in_statics.rs:9:25: 9:31
-        _12 = (const 0u32, const 3u32);  // bb0[17]: scope 0 at $DIR/storage_live_dead_in_statics.rs:9:25: 9:31
+        StorageLive(_12);                // scope 0 at $DIR/storage_live_dead_in_statics.rs:9:25: 9:31
+        _12 = (const 0u32, const 3u32);  // scope 0 at $DIR/storage_live_dead_in_statics.rs:9:25: 9:31
                                          // ty::Const
                                          // + ty: u32
                                          // + val: Value(Scalar(0x00000000))
@@ -142,8 +142,8 @@ static XXX: &Foo = {
                                          // mir::Constant
                                          // + span: $DIR/storage_live_dead_in_statics.rs:9:29: 9:30
                                          // + literal: Const { ty: u32, val: Value(Scalar(0x00000003)) }
-        StorageLive(_13);                // bb0[18]: scope 0 at $DIR/storage_live_dead_in_statics.rs:10:9: 10:15
-        _13 = (const 0u32, const 1u32);  // bb0[19]: scope 0 at $DIR/storage_live_dead_in_statics.rs:10:9: 10:15
+        StorageLive(_13);                // scope 0 at $DIR/storage_live_dead_in_statics.rs:10:9: 10:15
+        _13 = (const 0u32, const 1u32);  // scope 0 at $DIR/storage_live_dead_in_statics.rs:10:9: 10:15
                                          // ty::Const
                                          // + ty: u32
                                          // + val: Value(Scalar(0x00000000))
@@ -156,8 +156,8 @@ static XXX: &Foo = {
                                          // mir::Constant
                                          // + span: $DIR/storage_live_dead_in_statics.rs:10:13: 10:14
                                          // + literal: Const { ty: u32, val: Value(Scalar(0x00000001)) }
-        StorageLive(_14);                // bb0[20]: scope 0 at $DIR/storage_live_dead_in_statics.rs:10:17: 10:23
-        _14 = (const 0u32, const 2u32);  // bb0[21]: scope 0 at $DIR/storage_live_dead_in_statics.rs:10:17: 10:23
+        StorageLive(_14);                // scope 0 at $DIR/storage_live_dead_in_statics.rs:10:17: 10:23
+        _14 = (const 0u32, const 2u32);  // scope 0 at $DIR/storage_live_dead_in_statics.rs:10:17: 10:23
                                          // ty::Const
                                          // + ty: u32
                                          // + val: Value(Scalar(0x00000000))
@@ -170,8 +170,8 @@ static XXX: &Foo = {
                                          // mir::Constant
                                          // + span: $DIR/storage_live_dead_in_statics.rs:10:21: 10:22
                                          // + literal: Const { ty: u32, val: Value(Scalar(0x00000002)) }
-        StorageLive(_15);                // bb0[22]: scope 0 at $DIR/storage_live_dead_in_statics.rs:10:25: 10:31
-        _15 = (const 0u32, const 3u32);  // bb0[23]: scope 0 at $DIR/storage_live_dead_in_statics.rs:10:25: 10:31
+        StorageLive(_15);                // scope 0 at $DIR/storage_live_dead_in_statics.rs:10:25: 10:31
+        _15 = (const 0u32, const 3u32);  // scope 0 at $DIR/storage_live_dead_in_statics.rs:10:25: 10:31
                                          // ty::Const
                                          // + ty: u32
                                          // + val: Value(Scalar(0x00000000))
@@ -184,8 +184,8 @@ static XXX: &Foo = {
                                          // mir::Constant
                                          // + span: $DIR/storage_live_dead_in_statics.rs:10:29: 10:30
                                          // + literal: Const { ty: u32, val: Value(Scalar(0x00000003)) }
-        StorageLive(_16);                // bb0[24]: scope 0 at $DIR/storage_live_dead_in_statics.rs:11:9: 11:15
-        _16 = (const 0u32, const 1u32);  // bb0[25]: scope 0 at $DIR/storage_live_dead_in_statics.rs:11:9: 11:15
+        StorageLive(_16);                // scope 0 at $DIR/storage_live_dead_in_statics.rs:11:9: 11:15
+        _16 = (const 0u32, const 1u32);  // scope 0 at $DIR/storage_live_dead_in_statics.rs:11:9: 11:15
                                          // ty::Const
                                          // + ty: u32
                                          // + val: Value(Scalar(0x00000000))
@@ -198,8 +198,8 @@ static XXX: &Foo = {
                                          // mir::Constant
                                          // + span: $DIR/storage_live_dead_in_statics.rs:11:13: 11:14
                                          // + literal: Const { ty: u32, val: Value(Scalar(0x00000001)) }
-        StorageLive(_17);                // bb0[26]: scope 0 at $DIR/storage_live_dead_in_statics.rs:11:17: 11:23
-        _17 = (const 0u32, const 2u32);  // bb0[27]: scope 0 at $DIR/storage_live_dead_in_statics.rs:11:17: 11:23
+        StorageLive(_17);                // scope 0 at $DIR/storage_live_dead_in_statics.rs:11:17: 11:23
+        _17 = (const 0u32, const 2u32);  // scope 0 at $DIR/storage_live_dead_in_statics.rs:11:17: 11:23
                                          // ty::Const
                                          // + ty: u32
                                          // + val: Value(Scalar(0x00000000))
@@ -212,8 +212,8 @@ static XXX: &Foo = {
                                          // mir::Constant
                                          // + span: $DIR/storage_live_dead_in_statics.rs:11:21: 11:22
                                          // + literal: Const { ty: u32, val: Value(Scalar(0x00000002)) }
-        StorageLive(_18);                // bb0[28]: scope 0 at $DIR/storage_live_dead_in_statics.rs:11:25: 11:31
-        _18 = (const 0u32, const 3u32);  // bb0[29]: scope 0 at $DIR/storage_live_dead_in_statics.rs:11:25: 11:31
+        StorageLive(_18);                // scope 0 at $DIR/storage_live_dead_in_statics.rs:11:25: 11:31
+        _18 = (const 0u32, const 3u32);  // scope 0 at $DIR/storage_live_dead_in_statics.rs:11:25: 11:31
                                          // ty::Const
                                          // + ty: u32
                                          // + val: Value(Scalar(0x00000000))
@@ -226,8 +226,8 @@ static XXX: &Foo = {
                                          // mir::Constant
                                          // + span: $DIR/storage_live_dead_in_statics.rs:11:29: 11:30
                                          // + literal: Const { ty: u32, val: Value(Scalar(0x00000003)) }
-        StorageLive(_19);                // bb0[30]: scope 0 at $DIR/storage_live_dead_in_statics.rs:12:9: 12:15
-        _19 = (const 0u32, const 1u32);  // bb0[31]: scope 0 at $DIR/storage_live_dead_in_statics.rs:12:9: 12:15
+        StorageLive(_19);                // scope 0 at $DIR/storage_live_dead_in_statics.rs:12:9: 12:15
+        _19 = (const 0u32, const 1u32);  // scope 0 at $DIR/storage_live_dead_in_statics.rs:12:9: 12:15
                                          // ty::Const
                                          // + ty: u32
                                          // + val: Value(Scalar(0x00000000))
@@ -240,8 +240,8 @@ static XXX: &Foo = {
                                          // mir::Constant
                                          // + span: $DIR/storage_live_dead_in_statics.rs:12:13: 12:14
                                          // + literal: Const { ty: u32, val: Value(Scalar(0x00000001)) }
-        StorageLive(_20);                // bb0[32]: scope 0 at $DIR/storage_live_dead_in_statics.rs:12:17: 12:23
-        _20 = (const 0u32, const 2u32);  // bb0[33]: scope 0 at $DIR/storage_live_dead_in_statics.rs:12:17: 12:23
+        StorageLive(_20);                // scope 0 at $DIR/storage_live_dead_in_statics.rs:12:17: 12:23
+        _20 = (const 0u32, const 2u32);  // scope 0 at $DIR/storage_live_dead_in_statics.rs:12:17: 12:23
                                          // ty::Const
                                          // + ty: u32
                                          // + val: Value(Scalar(0x00000000))
@@ -254,8 +254,8 @@ static XXX: &Foo = {
                                          // mir::Constant
                                          // + span: $DIR/storage_live_dead_in_statics.rs:12:21: 12:22
                                          // + literal: Const { ty: u32, val: Value(Scalar(0x00000002)) }
-        StorageLive(_21);                // bb0[34]: scope 0 at $DIR/storage_live_dead_in_statics.rs:12:25: 12:31
-        _21 = (const 0u32, const 3u32);  // bb0[35]: scope 0 at $DIR/storage_live_dead_in_statics.rs:12:25: 12:31
+        StorageLive(_21);                // scope 0 at $DIR/storage_live_dead_in_statics.rs:12:25: 12:31
+        _21 = (const 0u32, const 3u32);  // scope 0 at $DIR/storage_live_dead_in_statics.rs:12:25: 12:31
                                          // ty::Const
                                          // + ty: u32
                                          // + val: Value(Scalar(0x00000000))
@@ -268,8 +268,8 @@ static XXX: &Foo = {
                                          // mir::Constant
                                          // + span: $DIR/storage_live_dead_in_statics.rs:12:29: 12:30
                                          // + literal: Const { ty: u32, val: Value(Scalar(0x00000003)) }
-        StorageLive(_22);                // bb0[36]: scope 0 at $DIR/storage_live_dead_in_statics.rs:13:9: 13:15
-        _22 = (const 0u32, const 1u32);  // bb0[37]: scope 0 at $DIR/storage_live_dead_in_statics.rs:13:9: 13:15
+        StorageLive(_22);                // scope 0 at $DIR/storage_live_dead_in_statics.rs:13:9: 13:15
+        _22 = (const 0u32, const 1u32);  // scope 0 at $DIR/storage_live_dead_in_statics.rs:13:9: 13:15
                                          // ty::Const
                                          // + ty: u32
                                          // + val: Value(Scalar(0x00000000))
@@ -282,8 +282,8 @@ static XXX: &Foo = {
                                          // mir::Constant
                                          // + span: $DIR/storage_live_dead_in_statics.rs:13:13: 13:14
                                          // + literal: Const { ty: u32, val: Value(Scalar(0x00000001)) }
-        StorageLive(_23);                // bb0[38]: scope 0 at $DIR/storage_live_dead_in_statics.rs:13:17: 13:23
-        _23 = (const 0u32, const 2u32);  // bb0[39]: scope 0 at $DIR/storage_live_dead_in_statics.rs:13:17: 13:23
+        StorageLive(_23);                // scope 0 at $DIR/storage_live_dead_in_statics.rs:13:17: 13:23
+        _23 = (const 0u32, const 2u32);  // scope 0 at $DIR/storage_live_dead_in_statics.rs:13:17: 13:23
                                          // ty::Const
                                          // + ty: u32
                                          // + val: Value(Scalar(0x00000000))
@@ -296,8 +296,8 @@ static XXX: &Foo = {
                                          // mir::Constant
                                          // + span: $DIR/storage_live_dead_in_statics.rs:13:21: 13:22
                                          // + literal: Const { ty: u32, val: Value(Scalar(0x00000002)) }
-        StorageLive(_24);                // bb0[40]: scope 0 at $DIR/storage_live_dead_in_statics.rs:13:25: 13:31
-        _24 = (const 0u32, const 3u32);  // bb0[41]: scope 0 at $DIR/storage_live_dead_in_statics.rs:13:25: 13:31
+        StorageLive(_24);                // scope 0 at $DIR/storage_live_dead_in_statics.rs:13:25: 13:31
+        _24 = (const 0u32, const 3u32);  // scope 0 at $DIR/storage_live_dead_in_statics.rs:13:25: 13:31
                                          // ty::Const
                                          // + ty: u32
                                          // + val: Value(Scalar(0x00000000))
@@ -310,8 +310,8 @@ static XXX: &Foo = {
                                          // mir::Constant
                                          // + span: $DIR/storage_live_dead_in_statics.rs:13:29: 13:30
                                          // + literal: Const { ty: u32, val: Value(Scalar(0x00000003)) }
-        StorageLive(_25);                // bb0[42]: scope 0 at $DIR/storage_live_dead_in_statics.rs:14:9: 14:15
-        _25 = (const 0u32, const 1u32);  // bb0[43]: scope 0 at $DIR/storage_live_dead_in_statics.rs:14:9: 14:15
+        StorageLive(_25);                // scope 0 at $DIR/storage_live_dead_in_statics.rs:14:9: 14:15
+        _25 = (const 0u32, const 1u32);  // scope 0 at $DIR/storage_live_dead_in_statics.rs:14:9: 14:15
                                          // ty::Const
                                          // + ty: u32
                                          // + val: Value(Scalar(0x00000000))
@@ -324,8 +324,8 @@ static XXX: &Foo = {
                                          // mir::Constant
                                          // + span: $DIR/storage_live_dead_in_statics.rs:14:13: 14:14
                                          // + literal: Const { ty: u32, val: Value(Scalar(0x00000001)) }
-        StorageLive(_26);                // bb0[44]: scope 0 at $DIR/storage_live_dead_in_statics.rs:14:17: 14:23
-        _26 = (const 0u32, const 2u32);  // bb0[45]: scope 0 at $DIR/storage_live_dead_in_statics.rs:14:17: 14:23
+        StorageLive(_26);                // scope 0 at $DIR/storage_live_dead_in_statics.rs:14:17: 14:23
+        _26 = (const 0u32, const 2u32);  // scope 0 at $DIR/storage_live_dead_in_statics.rs:14:17: 14:23
                                          // ty::Const
                                          // + ty: u32
                                          // + val: Value(Scalar(0x00000000))
@@ -338,8 +338,8 @@ static XXX: &Foo = {
                                          // mir::Constant
                                          // + span: $DIR/storage_live_dead_in_statics.rs:14:21: 14:22
                                          // + literal: Const { ty: u32, val: Value(Scalar(0x00000002)) }
-        StorageLive(_27);                // bb0[46]: scope 0 at $DIR/storage_live_dead_in_statics.rs:14:25: 14:31
-        _27 = (const 0u32, const 3u32);  // bb0[47]: scope 0 at $DIR/storage_live_dead_in_statics.rs:14:25: 14:31
+        StorageLive(_27);                // scope 0 at $DIR/storage_live_dead_in_statics.rs:14:25: 14:31
+        _27 = (const 0u32, const 3u32);  // scope 0 at $DIR/storage_live_dead_in_statics.rs:14:25: 14:31
                                          // ty::Const
                                          // + ty: u32
                                          // + val: Value(Scalar(0x00000000))
@@ -352,8 +352,8 @@ static XXX: &Foo = {
                                          // mir::Constant
                                          // + span: $DIR/storage_live_dead_in_statics.rs:14:29: 14:30
                                          // + literal: Const { ty: u32, val: Value(Scalar(0x00000003)) }
-        StorageLive(_28);                // bb0[48]: scope 0 at $DIR/storage_live_dead_in_statics.rs:15:9: 15:15
-        _28 = (const 0u32, const 1u32);  // bb0[49]: scope 0 at $DIR/storage_live_dead_in_statics.rs:15:9: 15:15
+        StorageLive(_28);                // scope 0 at $DIR/storage_live_dead_in_statics.rs:15:9: 15:15
+        _28 = (const 0u32, const 1u32);  // scope 0 at $DIR/storage_live_dead_in_statics.rs:15:9: 15:15
                                          // ty::Const
                                          // + ty: u32
                                          // + val: Value(Scalar(0x00000000))
@@ -366,8 +366,8 @@ static XXX: &Foo = {
                                          // mir::Constant
                                          // + span: $DIR/storage_live_dead_in_statics.rs:15:13: 15:14
                                          // + literal: Const { ty: u32, val: Value(Scalar(0x00000001)) }
-        StorageLive(_29);                // bb0[50]: scope 0 at $DIR/storage_live_dead_in_statics.rs:15:17: 15:23
-        _29 = (const 0u32, const 2u32);  // bb0[51]: scope 0 at $DIR/storage_live_dead_in_statics.rs:15:17: 15:23
+        StorageLive(_29);                // scope 0 at $DIR/storage_live_dead_in_statics.rs:15:17: 15:23
+        _29 = (const 0u32, const 2u32);  // scope 0 at $DIR/storage_live_dead_in_statics.rs:15:17: 15:23
                                          // ty::Const
                                          // + ty: u32
                                          // + val: Value(Scalar(0x00000000))
@@ -380,8 +380,8 @@ static XXX: &Foo = {
                                          // mir::Constant
                                          // + span: $DIR/storage_live_dead_in_statics.rs:15:21: 15:22
                                          // + literal: Const { ty: u32, val: Value(Scalar(0x00000002)) }
-        StorageLive(_30);                // bb0[52]: scope 0 at $DIR/storage_live_dead_in_statics.rs:15:25: 15:31
-        _30 = (const 0u32, const 3u32);  // bb0[53]: scope 0 at $DIR/storage_live_dead_in_statics.rs:15:25: 15:31
+        StorageLive(_30);                // scope 0 at $DIR/storage_live_dead_in_statics.rs:15:25: 15:31
+        _30 = (const 0u32, const 3u32);  // scope 0 at $DIR/storage_live_dead_in_statics.rs:15:25: 15:31
                                          // ty::Const
                                          // + ty: u32
                                          // + val: Value(Scalar(0x00000000))
@@ -394,8 +394,8 @@ static XXX: &Foo = {
                                          // mir::Constant
                                          // + span: $DIR/storage_live_dead_in_statics.rs:15:29: 15:30
                                          // + literal: Const { ty: u32, val: Value(Scalar(0x00000003)) }
-        StorageLive(_31);                // bb0[54]: scope 0 at $DIR/storage_live_dead_in_statics.rs:16:9: 16:15
-        _31 = (const 0u32, const 1u32);  // bb0[55]: scope 0 at $DIR/storage_live_dead_in_statics.rs:16:9: 16:15
+        StorageLive(_31);                // scope 0 at $DIR/storage_live_dead_in_statics.rs:16:9: 16:15
+        _31 = (const 0u32, const 1u32);  // scope 0 at $DIR/storage_live_dead_in_statics.rs:16:9: 16:15
                                          // ty::Const
                                          // + ty: u32
                                          // + val: Value(Scalar(0x00000000))
@@ -408,8 +408,8 @@ static XXX: &Foo = {
                                          // mir::Constant
                                          // + span: $DIR/storage_live_dead_in_statics.rs:16:13: 16:14
                                          // + literal: Const { ty: u32, val: Value(Scalar(0x00000001)) }
-        StorageLive(_32);                // bb0[56]: scope 0 at $DIR/storage_live_dead_in_statics.rs:16:17: 16:23
-        _32 = (const 0u32, const 2u32);  // bb0[57]: scope 0 at $DIR/storage_live_dead_in_statics.rs:16:17: 16:23
+        StorageLive(_32);                // scope 0 at $DIR/storage_live_dead_in_statics.rs:16:17: 16:23
+        _32 = (const 0u32, const 2u32);  // scope 0 at $DIR/storage_live_dead_in_statics.rs:16:17: 16:23
                                          // ty::Const
                                          // + ty: u32
                                          // + val: Value(Scalar(0x00000000))
@@ -422,8 +422,8 @@ static XXX: &Foo = {
                                          // mir::Constant
                                          // + span: $DIR/storage_live_dead_in_statics.rs:16:21: 16:22
                                          // + literal: Const { ty: u32, val: Value(Scalar(0x00000002)) }
-        StorageLive(_33);                // bb0[58]: scope 0 at $DIR/storage_live_dead_in_statics.rs:16:25: 16:31
-        _33 = (const 0u32, const 3u32);  // bb0[59]: scope 0 at $DIR/storage_live_dead_in_statics.rs:16:25: 16:31
+        StorageLive(_33);                // scope 0 at $DIR/storage_live_dead_in_statics.rs:16:25: 16:31
+        _33 = (const 0u32, const 3u32);  // scope 0 at $DIR/storage_live_dead_in_statics.rs:16:25: 16:31
                                          // ty::Const
                                          // + ty: u32
                                          // + val: Value(Scalar(0x00000000))
@@ -436,8 +436,8 @@ static XXX: &Foo = {
                                          // mir::Constant
                                          // + span: $DIR/storage_live_dead_in_statics.rs:16:29: 16:30
                                          // + literal: Const { ty: u32, val: Value(Scalar(0x00000003)) }
-        StorageLive(_34);                // bb0[60]: scope 0 at $DIR/storage_live_dead_in_statics.rs:17:9: 17:15
-        _34 = (const 0u32, const 1u32);  // bb0[61]: scope 0 at $DIR/storage_live_dead_in_statics.rs:17:9: 17:15
+        StorageLive(_34);                // scope 0 at $DIR/storage_live_dead_in_statics.rs:17:9: 17:15
+        _34 = (const 0u32, const 1u32);  // scope 0 at $DIR/storage_live_dead_in_statics.rs:17:9: 17:15
                                          // ty::Const
                                          // + ty: u32
                                          // + val: Value(Scalar(0x00000000))
@@ -450,8 +450,8 @@ static XXX: &Foo = {
                                          // mir::Constant
                                          // + span: $DIR/storage_live_dead_in_statics.rs:17:13: 17:14
                                          // + literal: Const { ty: u32, val: Value(Scalar(0x00000001)) }
-        StorageLive(_35);                // bb0[62]: scope 0 at $DIR/storage_live_dead_in_statics.rs:17:17: 17:23
-        _35 = (const 0u32, const 2u32);  // bb0[63]: scope 0 at $DIR/storage_live_dead_in_statics.rs:17:17: 17:23
+        StorageLive(_35);                // scope 0 at $DIR/storage_live_dead_in_statics.rs:17:17: 17:23
+        _35 = (const 0u32, const 2u32);  // scope 0 at $DIR/storage_live_dead_in_statics.rs:17:17: 17:23
                                          // ty::Const
                                          // + ty: u32
                                          // + val: Value(Scalar(0x00000000))
@@ -464,8 +464,8 @@ static XXX: &Foo = {
                                          // mir::Constant
                                          // + span: $DIR/storage_live_dead_in_statics.rs:17:21: 17:22
                                          // + literal: Const { ty: u32, val: Value(Scalar(0x00000002)) }
-        StorageLive(_36);                // bb0[64]: scope 0 at $DIR/storage_live_dead_in_statics.rs:17:25: 17:31
-        _36 = (const 0u32, const 3u32);  // bb0[65]: scope 0 at $DIR/storage_live_dead_in_statics.rs:17:25: 17:31
+        StorageLive(_36);                // scope 0 at $DIR/storage_live_dead_in_statics.rs:17:25: 17:31
+        _36 = (const 0u32, const 3u32);  // scope 0 at $DIR/storage_live_dead_in_statics.rs:17:25: 17:31
                                          // ty::Const
                                          // + ty: u32
                                          // + val: Value(Scalar(0x00000000))
@@ -478,8 +478,8 @@ static XXX: &Foo = {
                                          // mir::Constant
                                          // + span: $DIR/storage_live_dead_in_statics.rs:17:29: 17:30
                                          // + literal: Const { ty: u32, val: Value(Scalar(0x00000003)) }
-        StorageLive(_37);                // bb0[66]: scope 0 at $DIR/storage_live_dead_in_statics.rs:18:9: 18:15
-        _37 = (const 0u32, const 1u32);  // bb0[67]: scope 0 at $DIR/storage_live_dead_in_statics.rs:18:9: 18:15
+        StorageLive(_37);                // scope 0 at $DIR/storage_live_dead_in_statics.rs:18:9: 18:15
+        _37 = (const 0u32, const 1u32);  // scope 0 at $DIR/storage_live_dead_in_statics.rs:18:9: 18:15
                                          // ty::Const
                                          // + ty: u32
                                          // + val: Value(Scalar(0x00000000))
@@ -492,8 +492,8 @@ static XXX: &Foo = {
                                          // mir::Constant
                                          // + span: $DIR/storage_live_dead_in_statics.rs:18:13: 18:14
                                          // + literal: Const { ty: u32, val: Value(Scalar(0x00000001)) }
-        StorageLive(_38);                // bb0[68]: scope 0 at $DIR/storage_live_dead_in_statics.rs:18:17: 18:23
-        _38 = (const 0u32, const 2u32);  // bb0[69]: scope 0 at $DIR/storage_live_dead_in_statics.rs:18:17: 18:23
+        StorageLive(_38);                // scope 0 at $DIR/storage_live_dead_in_statics.rs:18:17: 18:23
+        _38 = (const 0u32, const 2u32);  // scope 0 at $DIR/storage_live_dead_in_statics.rs:18:17: 18:23
                                          // ty::Const
                                          // + ty: u32
                                          // + val: Value(Scalar(0x00000000))
@@ -506,8 +506,8 @@ static XXX: &Foo = {
                                          // mir::Constant
                                          // + span: $DIR/storage_live_dead_in_statics.rs:18:21: 18:22
                                          // + literal: Const { ty: u32, val: Value(Scalar(0x00000002)) }
-        StorageLive(_39);                // bb0[70]: scope 0 at $DIR/storage_live_dead_in_statics.rs:18:25: 18:31
-        _39 = (const 0u32, const 3u32);  // bb0[71]: scope 0 at $DIR/storage_live_dead_in_statics.rs:18:25: 18:31
+        StorageLive(_39);                // scope 0 at $DIR/storage_live_dead_in_statics.rs:18:25: 18:31
+        _39 = (const 0u32, const 3u32);  // scope 0 at $DIR/storage_live_dead_in_statics.rs:18:25: 18:31
                                          // ty::Const
                                          // + ty: u32
                                          // + val: Value(Scalar(0x00000000))
@@ -520,8 +520,8 @@ static XXX: &Foo = {
                                          // mir::Constant
                                          // + span: $DIR/storage_live_dead_in_statics.rs:18:29: 18:30
                                          // + literal: Const { ty: u32, val: Value(Scalar(0x00000003)) }
-        StorageLive(_40);                // bb0[72]: scope 0 at $DIR/storage_live_dead_in_statics.rs:19:9: 19:15
-        _40 = (const 0u32, const 1u32);  // bb0[73]: scope 0 at $DIR/storage_live_dead_in_statics.rs:19:9: 19:15
+        StorageLive(_40);                // scope 0 at $DIR/storage_live_dead_in_statics.rs:19:9: 19:15
+        _40 = (const 0u32, const 1u32);  // scope 0 at $DIR/storage_live_dead_in_statics.rs:19:9: 19:15
                                          // ty::Const
                                          // + ty: u32
                                          // + val: Value(Scalar(0x00000000))
@@ -534,8 +534,8 @@ static XXX: &Foo = {
                                          // mir::Constant
                                          // + span: $DIR/storage_live_dead_in_statics.rs:19:13: 19:14
                                          // + literal: Const { ty: u32, val: Value(Scalar(0x00000001)) }
-        StorageLive(_41);                // bb0[74]: scope 0 at $DIR/storage_live_dead_in_statics.rs:19:17: 19:23
-        _41 = (const 0u32, const 2u32);  // bb0[75]: scope 0 at $DIR/storage_live_dead_in_statics.rs:19:17: 19:23
+        StorageLive(_41);                // scope 0 at $DIR/storage_live_dead_in_statics.rs:19:17: 19:23
+        _41 = (const 0u32, const 2u32);  // scope 0 at $DIR/storage_live_dead_in_statics.rs:19:17: 19:23
                                          // ty::Const
                                          // + ty: u32
                                          // + val: Value(Scalar(0x00000000))
@@ -548,8 +548,8 @@ static XXX: &Foo = {
                                          // mir::Constant
                                          // + span: $DIR/storage_live_dead_in_statics.rs:19:21: 19:22
                                          // + literal: Const { ty: u32, val: Value(Scalar(0x00000002)) }
-        StorageLive(_42);                // bb0[76]: scope 0 at $DIR/storage_live_dead_in_statics.rs:19:25: 19:31
-        _42 = (const 0u32, const 3u32);  // bb0[77]: scope 0 at $DIR/storage_live_dead_in_statics.rs:19:25: 19:31
+        StorageLive(_42);                // scope 0 at $DIR/storage_live_dead_in_statics.rs:19:25: 19:31
+        _42 = (const 0u32, const 3u32);  // scope 0 at $DIR/storage_live_dead_in_statics.rs:19:25: 19:31
                                          // ty::Const
                                          // + ty: u32
                                          // + val: Value(Scalar(0x00000000))
@@ -562,8 +562,8 @@ static XXX: &Foo = {
                                          // mir::Constant
                                          // + span: $DIR/storage_live_dead_in_statics.rs:19:29: 19:30
                                          // + literal: Const { ty: u32, val: Value(Scalar(0x00000003)) }
-        StorageLive(_43);                // bb0[78]: scope 0 at $DIR/storage_live_dead_in_statics.rs:20:9: 20:15
-        _43 = (const 0u32, const 1u32);  // bb0[79]: scope 0 at $DIR/storage_live_dead_in_statics.rs:20:9: 20:15
+        StorageLive(_43);                // scope 0 at $DIR/storage_live_dead_in_statics.rs:20:9: 20:15
+        _43 = (const 0u32, const 1u32);  // scope 0 at $DIR/storage_live_dead_in_statics.rs:20:9: 20:15
                                          // ty::Const
                                          // + ty: u32
                                          // + val: Value(Scalar(0x00000000))
@@ -576,8 +576,8 @@ static XXX: &Foo = {
                                          // mir::Constant
                                          // + span: $DIR/storage_live_dead_in_statics.rs:20:13: 20:14
                                          // + literal: Const { ty: u32, val: Value(Scalar(0x00000001)) }
-        StorageLive(_44);                // bb0[80]: scope 0 at $DIR/storage_live_dead_in_statics.rs:20:17: 20:23
-        _44 = (const 0u32, const 2u32);  // bb0[81]: scope 0 at $DIR/storage_live_dead_in_statics.rs:20:17: 20:23
+        StorageLive(_44);                // scope 0 at $DIR/storage_live_dead_in_statics.rs:20:17: 20:23
+        _44 = (const 0u32, const 2u32);  // scope 0 at $DIR/storage_live_dead_in_statics.rs:20:17: 20:23
                                          // ty::Const
                                          // + ty: u32
                                          // + val: Value(Scalar(0x00000000))
@@ -590,8 +590,8 @@ static XXX: &Foo = {
                                          // mir::Constant
                                          // + span: $DIR/storage_live_dead_in_statics.rs:20:21: 20:22
                                          // + literal: Const { ty: u32, val: Value(Scalar(0x00000002)) }
-        StorageLive(_45);                // bb0[82]: scope 0 at $DIR/storage_live_dead_in_statics.rs:20:25: 20:31
-        _45 = (const 0u32, const 3u32);  // bb0[83]: scope 0 at $DIR/storage_live_dead_in_statics.rs:20:25: 20:31
+        StorageLive(_45);                // scope 0 at $DIR/storage_live_dead_in_statics.rs:20:25: 20:31
+        _45 = (const 0u32, const 3u32);  // scope 0 at $DIR/storage_live_dead_in_statics.rs:20:25: 20:31
                                          // ty::Const
                                          // + ty: u32
                                          // + val: Value(Scalar(0x00000000))
@@ -604,8 +604,8 @@ static XXX: &Foo = {
                                          // mir::Constant
                                          // + span: $DIR/storage_live_dead_in_statics.rs:20:29: 20:30
                                          // + literal: Const { ty: u32, val: Value(Scalar(0x00000003)) }
-        StorageLive(_46);                // bb0[84]: scope 0 at $DIR/storage_live_dead_in_statics.rs:21:9: 21:15
-        _46 = (const 0u32, const 1u32);  // bb0[85]: scope 0 at $DIR/storage_live_dead_in_statics.rs:21:9: 21:15
+        StorageLive(_46);                // scope 0 at $DIR/storage_live_dead_in_statics.rs:21:9: 21:15
+        _46 = (const 0u32, const 1u32);  // scope 0 at $DIR/storage_live_dead_in_statics.rs:21:9: 21:15
                                          // ty::Const
                                          // + ty: u32
                                          // + val: Value(Scalar(0x00000000))
@@ -618,8 +618,8 @@ static XXX: &Foo = {
                                          // mir::Constant
                                          // + span: $DIR/storage_live_dead_in_statics.rs:21:13: 21:14
                                          // + literal: Const { ty: u32, val: Value(Scalar(0x00000001)) }
-        StorageLive(_47);                // bb0[86]: scope 0 at $DIR/storage_live_dead_in_statics.rs:21:17: 21:23
-        _47 = (const 0u32, const 2u32);  // bb0[87]: scope 0 at $DIR/storage_live_dead_in_statics.rs:21:17: 21:23
+        StorageLive(_47);                // scope 0 at $DIR/storage_live_dead_in_statics.rs:21:17: 21:23
+        _47 = (const 0u32, const 2u32);  // scope 0 at $DIR/storage_live_dead_in_statics.rs:21:17: 21:23
                                          // ty::Const
                                          // + ty: u32
                                          // + val: Value(Scalar(0x00000000))
@@ -632,8 +632,8 @@ static XXX: &Foo = {
                                          // mir::Constant
                                          // + span: $DIR/storage_live_dead_in_statics.rs:21:21: 21:22
                                          // + literal: Const { ty: u32, val: Value(Scalar(0x00000002)) }
-        StorageLive(_48);                // bb0[88]: scope 0 at $DIR/storage_live_dead_in_statics.rs:21:25: 21:31
-        _48 = (const 0u32, const 3u32);  // bb0[89]: scope 0 at $DIR/storage_live_dead_in_statics.rs:21:25: 21:31
+        StorageLive(_48);                // scope 0 at $DIR/storage_live_dead_in_statics.rs:21:25: 21:31
+        _48 = (const 0u32, const 3u32);  // scope 0 at $DIR/storage_live_dead_in_statics.rs:21:25: 21:31
                                          // ty::Const
                                          // + ty: u32
                                          // + val: Value(Scalar(0x00000000))
@@ -646,25 +646,25 @@ static XXX: &Foo = {
                                          // mir::Constant
                                          // + span: $DIR/storage_live_dead_in_statics.rs:21:29: 21:30
                                          // + literal: Const { ty: u32, val: Value(Scalar(0x00000003)) }
-        _6 = [move _7, move _8, move _9, move _10, move _11, move _12, move _13, move _14, move _15, move _16, move _17, move _18, move _19, move _20, move _21, move _22, move _23, move _24, move _25, move _26, move _27, move _28, move _29, move _30, move _31, move _32, move _33, move _34, move _35, move _36, move _37, move _38, move _39, move _40, move _41, move _42, move _43, move _44, move _45, move _46, move _47, move _48]; // bb0[90]: scope 0 at $DIR/storage_live_dead_in_statics.rs:7:12: 22:6
-        _5 = &_6;                        // bb0[91]: scope 0 at $DIR/storage_live_dead_in_statics.rs:7:11: 22:6
-        _4 = &(*_5);                     // bb0[92]: scope 0 at $DIR/storage_live_dead_in_statics.rs:7:11: 22:6
-        _3 = move _4 as &[(u32, u32)] (Pointer(Unsize)); // bb0[93]: scope 0 at $DIR/storage_live_dead_in_statics.rs:7:11: 22:6
-        _2 = Foo { tup: const "hi", data: move _3 }; // bb0[94]: scope 0 at $DIR/storage_live_dead_in_statics.rs:5:29: 23:2
+        _6 = [move _7, move _8, move _9, move _10, move _11, move _12, move _13, move _14, move _15, move _16, move _17, move _18, move _19, move _20, move _21, move _22, move _23, move _24, move _25, move _26, move _27, move _28, move _29, move _30, move _31, move _32, move _33, move _34, move _35, move _36, move _37, move _38, move _39, move _40, move _41, move _42, move _43, move _44, move _45, move _46, move _47, move _48]; // scope 0 at $DIR/storage_live_dead_in_statics.rs:7:12: 22:6
+        _5 = &_6;                        // scope 0 at $DIR/storage_live_dead_in_statics.rs:7:11: 22:6
+        _4 = &(*_5);                     // scope 0 at $DIR/storage_live_dead_in_statics.rs:7:11: 22:6
+        _3 = move _4 as &[(u32, u32)] (Pointer(Unsize)); // scope 0 at $DIR/storage_live_dead_in_statics.rs:7:11: 22:6
+        _2 = Foo { tup: const "hi", data: move _3 }; // scope 0 at $DIR/storage_live_dead_in_statics.rs:5:29: 23:2
                                          // ty::Const
                                          // + ty: &str
                                          // + val: Value(Slice { data: Allocation { bytes: [104, 105], relocations: Relocations(SortedMap { data: [] }), undef_mask: UndefMask { blocks: [3], len: Size { raw: 2 } }, size: Size { raw: 2 }, align: Align { pow2: 0 }, mutability: Not, extra: () }, start: 0, end: 2 })
                                          // mir::Constant
                                          // + span: $DIR/storage_live_dead_in_statics.rs:6:10: 6:14
                                          // + literal: Const { ty: &str, val: Value(Slice { data: Allocation { bytes: [104, 105], relocations: Relocations(SortedMap { data: [] }), undef_mask: UndefMask { blocks: [3], len: Size { raw: 2 } }, size: Size { raw: 2 }, align: Align { pow2: 0 }, mutability: Not, extra: () }, start: 0, end: 2 }) }
-        _1 = &_2;                        // bb0[95]: scope 0 at $DIR/storage_live_dead_in_statics.rs:5:28: 23:2
-        _0 = &(*_1);                     // bb0[96]: scope 0 at $DIR/storage_live_dead_in_statics.rs:5:28: 23:2
-        StorageDead(_5);                 // bb0[97]: scope 0 at $DIR/storage_live_dead_in_statics.rs:23:1: 23:2
-        StorageDead(_1);                 // bb0[98]: scope 0 at $DIR/storage_live_dead_in_statics.rs:23:1: 23:2
-        return;                          // bb0[99]: scope 0 at $DIR/storage_live_dead_in_statics.rs:5:1: 23:3
+        _1 = &_2;                        // scope 0 at $DIR/storage_live_dead_in_statics.rs:5:28: 23:2
+        _0 = &(*_1);                     // scope 0 at $DIR/storage_live_dead_in_statics.rs:5:28: 23:2
+        StorageDead(_5);                 // scope 0 at $DIR/storage_live_dead_in_statics.rs:23:1: 23:2
+        StorageDead(_1);                 // scope 0 at $DIR/storage_live_dead_in_statics.rs:23:1: 23:2
+        return;                          // scope 0 at $DIR/storage_live_dead_in_statics.rs:5:1: 23:3
     }
 
     bb1 (cleanup): {
-        resume;                          // bb1[0]: scope 0 at $DIR/storage_live_dead_in_statics.rs:5:1: 23:3
+        resume;                          // scope 0 at $DIR/storage_live_dead_in_statics.rs:5:1: 23:3
     }
 }
diff --git a/src/test/mir-opt/storage_ranges/rustc.main.nll.0.mir b/src/test/mir-opt/storage_ranges/rustc.main.nll.0.mir
index 799521b09a6..5ffc83158ea 100644
--- a/src/test/mir-opt/storage_ranges/rustc.main.nll.0.mir
+++ b/src/test/mir-opt/storage_ranges/rustc.main.nll.0.mir
@@ -36,52 +36,52 @@ fn main() -> () {
     }
 
     bb0: {
-        StorageLive(_1);                 // bb0[0]: scope 0 at $DIR/storage_ranges.rs:4:9: 4:10
-        _1 = const 0i32;                 // bb0[1]: scope 0 at $DIR/storage_ranges.rs:4:13: 4:14
+        StorageLive(_1);                 // scope 0 at $DIR/storage_ranges.rs:4:9: 4:10
+        _1 = const 0i32;                 // scope 0 at $DIR/storage_ranges.rs:4:13: 4:14
                                          // ty::Const
                                          // + ty: i32
                                          // + val: Value(Scalar(0x00000000))
                                          // mir::Constant
                                          // + span: $DIR/storage_ranges.rs:4:13: 4:14
                                          // + literal: Const { ty: i32, val: Value(Scalar(0x00000000)) }
-        FakeRead(ForLet, _1);            // bb0[2]: scope 0 at $DIR/storage_ranges.rs:4:9: 4:10
-        StorageLive(_2);                 // bb0[3]: scope 1 at $DIR/storage_ranges.rs:5:5: 7:6
-        StorageLive(_3);                 // bb0[4]: scope 1 at $DIR/storage_ranges.rs:6:13: 6:14
-        StorageLive(_4);                 // bb0[5]: scope 1 at $DIR/storage_ranges.rs:6:18: 6:25
-        StorageLive(_5);                 // bb0[6]: scope 1 at $DIR/storage_ranges.rs:6:23: 6:24
-        _5 = _1;                         // bb0[7]: scope 1 at $DIR/storage_ranges.rs:6:23: 6:24
-        _4 = std::option::Option::<i32>::Some(move _5); // bb0[8]: scope 1 at $DIR/storage_ranges.rs:6:18: 6:25
-        StorageDead(_5);                 // bb0[9]: scope 1 at $DIR/storage_ranges.rs:6:24: 6:25
-        _3 = &_4;                        // bb0[10]: scope 1 at $DIR/storage_ranges.rs:6:17: 6:25
-        FakeRead(ForLet, _3);            // bb0[11]: scope 1 at $DIR/storage_ranges.rs:6:13: 6:14
-        _2 = const ();                   // bb0[12]: scope 1 at $DIR/storage_ranges.rs:5:5: 7:6
+        FakeRead(ForLet, _1);            // scope 0 at $DIR/storage_ranges.rs:4:9: 4:10
+        StorageLive(_2);                 // scope 1 at $DIR/storage_ranges.rs:5:5: 7:6
+        StorageLive(_3);                 // scope 1 at $DIR/storage_ranges.rs:6:13: 6:14
+        StorageLive(_4);                 // scope 1 at $DIR/storage_ranges.rs:6:18: 6:25
+        StorageLive(_5);                 // scope 1 at $DIR/storage_ranges.rs:6:23: 6:24
+        _5 = _1;                         // scope 1 at $DIR/storage_ranges.rs:6:23: 6:24
+        _4 = std::option::Option::<i32>::Some(move _5); // scope 1 at $DIR/storage_ranges.rs:6:18: 6:25
+        StorageDead(_5);                 // scope 1 at $DIR/storage_ranges.rs:6:24: 6:25
+        _3 = &_4;                        // scope 1 at $DIR/storage_ranges.rs:6:17: 6:25
+        FakeRead(ForLet, _3);            // scope 1 at $DIR/storage_ranges.rs:6:13: 6:14
+        _2 = const ();                   // scope 1 at $DIR/storage_ranges.rs:5:5: 7:6
                                          // ty::Const
                                          // + ty: ()
                                          // + val: Value(Scalar(<ZST>))
                                          // mir::Constant
                                          // + span: $DIR/storage_ranges.rs:5:5: 7:6
                                          // + literal: Const { ty: (), val: Value(Scalar(<ZST>)) }
-        StorageDead(_4);                 // bb0[13]: scope 1 at $DIR/storage_ranges.rs:7:5: 7:6
-        StorageDead(_3);                 // bb0[14]: scope 1 at $DIR/storage_ranges.rs:7:5: 7:6
-        StorageDead(_2);                 // bb0[15]: scope 1 at $DIR/storage_ranges.rs:7:5: 7:6
-        StorageLive(_6);                 // bb0[16]: scope 1 at $DIR/storage_ranges.rs:8:9: 8:10
-        _6 = const 1i32;                 // bb0[17]: scope 1 at $DIR/storage_ranges.rs:8:13: 8:14
+        StorageDead(_4);                 // scope 1 at $DIR/storage_ranges.rs:7:5: 7:6
+        StorageDead(_3);                 // scope 1 at $DIR/storage_ranges.rs:7:5: 7:6
+        StorageDead(_2);                 // scope 1 at $DIR/storage_ranges.rs:7:5: 7:6
+        StorageLive(_6);                 // scope 1 at $DIR/storage_ranges.rs:8:9: 8:10
+        _6 = const 1i32;                 // scope 1 at $DIR/storage_ranges.rs:8:13: 8:14
                                          // ty::Const
                                          // + ty: i32
                                          // + val: Value(Scalar(0x00000001))
                                          // mir::Constant
                                          // + span: $DIR/storage_ranges.rs:8:13: 8:14
                                          // + literal: Const { ty: i32, val: Value(Scalar(0x00000001)) }
-        FakeRead(ForLet, _6);            // bb0[18]: scope 1 at $DIR/storage_ranges.rs:8:9: 8:10
-        _0 = const ();                   // bb0[19]: scope 0 at $DIR/storage_ranges.rs:3:11: 9:2
+        FakeRead(ForLet, _6);            // scope 1 at $DIR/storage_ranges.rs:8:9: 8:10
+        _0 = const ();                   // scope 0 at $DIR/storage_ranges.rs:3:11: 9:2
                                          // ty::Const
                                          // + ty: ()
                                          // + val: Value(Scalar(<ZST>))
                                          // mir::Constant
                                          // + span: $DIR/storage_ranges.rs:3:11: 9:2
                                          // + literal: Const { ty: (), val: Value(Scalar(<ZST>)) }
-        StorageDead(_6);                 // bb0[20]: scope 1 at $DIR/storage_ranges.rs:9:1: 9:2
-        StorageDead(_1);                 // bb0[21]: scope 0 at $DIR/storage_ranges.rs:9:1: 9:2
-        return;                          // bb0[22]: scope 0 at $DIR/storage_ranges.rs:9:2: 9:2
+        StorageDead(_6);                 // scope 1 at $DIR/storage_ranges.rs:9:1: 9:2
+        StorageDead(_1);                 // scope 0 at $DIR/storage_ranges.rs:9:1: 9:2
+        return;                          // scope 0 at $DIR/storage_ranges.rs:9:2: 9:2
     }
 }
diff --git a/src/test/mir-opt/uniform_array_move_out/rustc.move_out_by_subslice.mir_map.0.mir b/src/test/mir-opt/uniform_array_move_out/rustc.move_out_by_subslice.mir_map.0.mir
index b46adadf101..de29cd61019 100644
--- a/src/test/mir-opt/uniform_array_move_out/rustc.move_out_by_subslice.mir_map.0.mir
+++ b/src/test/mir-opt/uniform_array_move_out/rustc.move_out_by_subslice.mir_map.0.mir
@@ -16,102 +16,102 @@ fn move_out_by_subslice() -> () {
     }
 
     bb0: {
-        StorageLive(_1);                 // bb0[0]: scope 0 at $DIR/uniform_array_move_out.rs:11:9: 11:10
-        StorageLive(_2);                 // bb0[1]: scope 0 at $DIR/uniform_array_move_out.rs:11:14: 11:19
-        StorageLive(_3);                 // bb0[2]: scope 0 at $DIR/uniform_array_move_out.rs:11:14: 11:19
-        _3 = Box(i32);                   // bb0[3]: scope 0 at $DIR/uniform_array_move_out.rs:11:14: 11:19
-        (*_3) = const 1i32;              // bb0[4]: scope 0 at $DIR/uniform_array_move_out.rs:11:18: 11:19
+        StorageLive(_1);                 // scope 0 at $DIR/uniform_array_move_out.rs:11:9: 11:10
+        StorageLive(_2);                 // scope 0 at $DIR/uniform_array_move_out.rs:11:14: 11:19
+        StorageLive(_3);                 // scope 0 at $DIR/uniform_array_move_out.rs:11:14: 11:19
+        _3 = Box(i32);                   // scope 0 at $DIR/uniform_array_move_out.rs:11:14: 11:19
+        (*_3) = const 1i32;              // scope 0 at $DIR/uniform_array_move_out.rs:11:18: 11:19
                                          // ty::Const
                                          // + ty: i32
                                          // + val: Value(Scalar(0x00000001))
                                          // mir::Constant
                                          // + span: $DIR/uniform_array_move_out.rs:11:18: 11:19
                                          // + literal: Const { ty: i32, val: Value(Scalar(0x00000001)) }
-        _2 = move _3;                    // bb0[5]: scope 0 at $DIR/uniform_array_move_out.rs:11:14: 11:19
-        drop(_3) -> [return: bb4, unwind: bb2]; // bb0[6]: scope 0 at $DIR/uniform_array_move_out.rs:11:18: 11:19
+        _2 = move _3;                    // scope 0 at $DIR/uniform_array_move_out.rs:11:14: 11:19
+        drop(_3) -> [return: bb4, unwind: bb2]; // scope 0 at $DIR/uniform_array_move_out.rs:11:18: 11:19
     }
 
     bb1 (cleanup): {
-        resume;                          // bb1[0]: scope 0 at $DIR/uniform_array_move_out.rs:10:1: 13:2
+        resume;                          // scope 0 at $DIR/uniform_array_move_out.rs:10:1: 13:2
     }
 
     bb2 (cleanup): {
-        drop(_2) -> bb1;                 // bb2[0]: scope 0 at $DIR/uniform_array_move_out.rs:11:26: 11:27
+        drop(_2) -> bb1;                 // scope 0 at $DIR/uniform_array_move_out.rs:11:26: 11:27
     }
 
     bb3 (cleanup): {
-        drop(_3) -> bb2;                 // bb3[0]: scope 0 at $DIR/uniform_array_move_out.rs:11:18: 11:19
+        drop(_3) -> bb2;                 // scope 0 at $DIR/uniform_array_move_out.rs:11:18: 11:19
     }
 
     bb4: {
-        StorageDead(_3);                 // bb4[0]: scope 0 at $DIR/uniform_array_move_out.rs:11:18: 11:19
-        StorageLive(_4);                 // bb4[1]: scope 0 at $DIR/uniform_array_move_out.rs:11:21: 11:26
-        StorageLive(_5);                 // bb4[2]: scope 0 at $DIR/uniform_array_move_out.rs:11:21: 11:26
-        _5 = Box(i32);                   // bb4[3]: scope 0 at $DIR/uniform_array_move_out.rs:11:21: 11:26
-        (*_5) = const 2i32;              // bb4[4]: scope 0 at $DIR/uniform_array_move_out.rs:11:25: 11:26
+        StorageDead(_3);                 // scope 0 at $DIR/uniform_array_move_out.rs:11:18: 11:19
+        StorageLive(_4);                 // scope 0 at $DIR/uniform_array_move_out.rs:11:21: 11:26
+        StorageLive(_5);                 // scope 0 at $DIR/uniform_array_move_out.rs:11:21: 11:26
+        _5 = Box(i32);                   // scope 0 at $DIR/uniform_array_move_out.rs:11:21: 11:26
+        (*_5) = const 2i32;              // scope 0 at $DIR/uniform_array_move_out.rs:11:25: 11:26
                                          // ty::Const
                                          // + ty: i32
                                          // + val: Value(Scalar(0x00000002))
                                          // mir::Constant
                                          // + span: $DIR/uniform_array_move_out.rs:11:25: 11:26
                                          // + literal: Const { ty: i32, val: Value(Scalar(0x00000002)) }
-        _4 = move _5;                    // bb4[5]: scope 0 at $DIR/uniform_array_move_out.rs:11:21: 11:26
-        drop(_5) -> [return: bb7, unwind: bb5]; // bb4[6]: scope 0 at $DIR/uniform_array_move_out.rs:11:25: 11:26
+        _4 = move _5;                    // scope 0 at $DIR/uniform_array_move_out.rs:11:21: 11:26
+        drop(_5) -> [return: bb7, unwind: bb5]; // scope 0 at $DIR/uniform_array_move_out.rs:11:25: 11:26
     }
 
     bb5 (cleanup): {
-        drop(_4) -> bb2;                 // bb5[0]: scope 0 at $DIR/uniform_array_move_out.rs:11:26: 11:27
+        drop(_4) -> bb2;                 // scope 0 at $DIR/uniform_array_move_out.rs:11:26: 11:27
     }
 
     bb6 (cleanup): {
-        drop(_5) -> bb5;                 // bb6[0]: scope 0 at $DIR/uniform_array_move_out.rs:11:25: 11:26
+        drop(_5) -> bb5;                 // scope 0 at $DIR/uniform_array_move_out.rs:11:25: 11:26
     }
 
     bb7: {
-        StorageDead(_5);                 // bb7[0]: scope 0 at $DIR/uniform_array_move_out.rs:11:25: 11:26
-        _1 = [move _2, move _4];         // bb7[1]: scope 0 at $DIR/uniform_array_move_out.rs:11:13: 11:27
-        drop(_4) -> [return: bb8, unwind: bb2]; // bb7[2]: scope 0 at $DIR/uniform_array_move_out.rs:11:26: 11:27
+        StorageDead(_5);                 // scope 0 at $DIR/uniform_array_move_out.rs:11:25: 11:26
+        _1 = [move _2, move _4];         // scope 0 at $DIR/uniform_array_move_out.rs:11:13: 11:27
+        drop(_4) -> [return: bb8, unwind: bb2]; // scope 0 at $DIR/uniform_array_move_out.rs:11:26: 11:27
     }
 
     bb8: {
-        StorageDead(_4);                 // bb8[0]: scope 0 at $DIR/uniform_array_move_out.rs:11:26: 11:27
-        drop(_2) -> [return: bb9, unwind: bb1]; // bb8[1]: scope 0 at $DIR/uniform_array_move_out.rs:11:26: 11:27
+        StorageDead(_4);                 // scope 0 at $DIR/uniform_array_move_out.rs:11:26: 11:27
+        drop(_2) -> [return: bb9, unwind: bb1]; // scope 0 at $DIR/uniform_array_move_out.rs:11:26: 11:27
     }
 
     bb9: {
-        StorageDead(_2);                 // bb9[0]: scope 0 at $DIR/uniform_array_move_out.rs:11:26: 11:27
-        FakeRead(ForLet, _1);            // bb9[1]: scope 0 at $DIR/uniform_array_move_out.rs:11:9: 11:10
-        StorageLive(_6);                 // bb9[2]: scope 1 at $DIR/uniform_array_move_out.rs:12:10: 12:17
-        _6 = move _1[0..2];              // bb9[3]: scope 1 at $DIR/uniform_array_move_out.rs:12:10: 12:17
-        _0 = const ();                   // bb9[4]: scope 0 at $DIR/uniform_array_move_out.rs:10:27: 13:2
+        StorageDead(_2);                 // scope 0 at $DIR/uniform_array_move_out.rs:11:26: 11:27
+        FakeRead(ForLet, _1);            // scope 0 at $DIR/uniform_array_move_out.rs:11:9: 11:10
+        StorageLive(_6);                 // scope 1 at $DIR/uniform_array_move_out.rs:12:10: 12:17
+        _6 = move _1[0..2];              // scope 1 at $DIR/uniform_array_move_out.rs:12:10: 12:17
+        _0 = const ();                   // scope 0 at $DIR/uniform_array_move_out.rs:10:27: 13:2
                                          // ty::Const
                                          // + ty: ()
                                          // + val: Value(Scalar(<ZST>))
                                          // mir::Constant
                                          // + span: $DIR/uniform_array_move_out.rs:10:27: 13:2
                                          // + literal: Const { ty: (), val: Value(Scalar(<ZST>)) }
-        drop(_6) -> [return: bb12, unwind: bb10]; // bb9[5]: scope 1 at $DIR/uniform_array_move_out.rs:13:1: 13:2
+        drop(_6) -> [return: bb12, unwind: bb10]; // scope 1 at $DIR/uniform_array_move_out.rs:13:1: 13:2
     }
 
     bb10 (cleanup): {
-        drop(_1) -> bb1;                 // bb10[0]: scope 0 at $DIR/uniform_array_move_out.rs:13:1: 13:2
+        drop(_1) -> bb1;                 // scope 0 at $DIR/uniform_array_move_out.rs:13:1: 13:2
     }
 
     bb11 (cleanup): {
-        drop(_6) -> bb10;                // bb11[0]: scope 1 at $DIR/uniform_array_move_out.rs:13:1: 13:2
+        drop(_6) -> bb10;                // scope 1 at $DIR/uniform_array_move_out.rs:13:1: 13:2
     }
 
     bb12: {
-        StorageDead(_6);                 // bb12[0]: scope 1 at $DIR/uniform_array_move_out.rs:13:1: 13:2
-        drop(_1) -> [return: bb13, unwind: bb1]; // bb12[1]: scope 0 at $DIR/uniform_array_move_out.rs:13:1: 13:2
+        StorageDead(_6);                 // scope 1 at $DIR/uniform_array_move_out.rs:13:1: 13:2
+        drop(_1) -> [return: bb13, unwind: bb1]; // scope 0 at $DIR/uniform_array_move_out.rs:13:1: 13:2
     }
 
     bb13: {
-        StorageDead(_1);                 // bb13[0]: scope 0 at $DIR/uniform_array_move_out.rs:13:1: 13:2
-        goto -> bb14;                    // bb13[1]: scope 0 at $DIR/uniform_array_move_out.rs:13:2: 13:2
+        StorageDead(_1);                 // scope 0 at $DIR/uniform_array_move_out.rs:13:1: 13:2
+        goto -> bb14;                    // scope 0 at $DIR/uniform_array_move_out.rs:13:2: 13:2
     }
 
     bb14: {
-        return;                          // bb14[0]: scope 0 at $DIR/uniform_array_move_out.rs:13:2: 13:2
+        return;                          // scope 0 at $DIR/uniform_array_move_out.rs:13:2: 13:2
     }
 }
diff --git a/src/test/mir-opt/uniform_array_move_out/rustc.move_out_from_end.mir_map.0.mir b/src/test/mir-opt/uniform_array_move_out/rustc.move_out_from_end.mir_map.0.mir
index 851107efe11..aeab0e892ae 100644
--- a/src/test/mir-opt/uniform_array_move_out/rustc.move_out_from_end.mir_map.0.mir
+++ b/src/test/mir-opt/uniform_array_move_out/rustc.move_out_from_end.mir_map.0.mir
@@ -16,102 +16,102 @@ fn move_out_from_end() -> () {
     }
 
     bb0: {
-        StorageLive(_1);                 // bb0[0]: scope 0 at $DIR/uniform_array_move_out.rs:5:9: 5:10
-        StorageLive(_2);                 // bb0[1]: scope 0 at $DIR/uniform_array_move_out.rs:5:14: 5:19
-        StorageLive(_3);                 // bb0[2]: scope 0 at $DIR/uniform_array_move_out.rs:5:14: 5:19
-        _3 = Box(i32);                   // bb0[3]: scope 0 at $DIR/uniform_array_move_out.rs:5:14: 5:19
-        (*_3) = const 1i32;              // bb0[4]: scope 0 at $DIR/uniform_array_move_out.rs:5:18: 5:19
+        StorageLive(_1);                 // scope 0 at $DIR/uniform_array_move_out.rs:5:9: 5:10
+        StorageLive(_2);                 // scope 0 at $DIR/uniform_array_move_out.rs:5:14: 5:19
+        StorageLive(_3);                 // scope 0 at $DIR/uniform_array_move_out.rs:5:14: 5:19
+        _3 = Box(i32);                   // scope 0 at $DIR/uniform_array_move_out.rs:5:14: 5:19
+        (*_3) = const 1i32;              // scope 0 at $DIR/uniform_array_move_out.rs:5:18: 5:19
                                          // ty::Const
                                          // + ty: i32
                                          // + val: Value(Scalar(0x00000001))
                                          // mir::Constant
                                          // + span: $DIR/uniform_array_move_out.rs:5:18: 5:19
                                          // + literal: Const { ty: i32, val: Value(Scalar(0x00000001)) }
-        _2 = move _3;                    // bb0[5]: scope 0 at $DIR/uniform_array_move_out.rs:5:14: 5:19
-        drop(_3) -> [return: bb4, unwind: bb2]; // bb0[6]: scope 0 at $DIR/uniform_array_move_out.rs:5:18: 5:19
+        _2 = move _3;                    // scope 0 at $DIR/uniform_array_move_out.rs:5:14: 5:19
+        drop(_3) -> [return: bb4, unwind: bb2]; // scope 0 at $DIR/uniform_array_move_out.rs:5:18: 5:19
     }
 
     bb1 (cleanup): {
-        resume;                          // bb1[0]: scope 0 at $DIR/uniform_array_move_out.rs:4:1: 7:2
+        resume;                          // scope 0 at $DIR/uniform_array_move_out.rs:4:1: 7:2
     }
 
     bb2 (cleanup): {
-        drop(_2) -> bb1;                 // bb2[0]: scope 0 at $DIR/uniform_array_move_out.rs:5:26: 5:27
+        drop(_2) -> bb1;                 // scope 0 at $DIR/uniform_array_move_out.rs:5:26: 5:27
     }
 
     bb3 (cleanup): {
-        drop(_3) -> bb2;                 // bb3[0]: scope 0 at $DIR/uniform_array_move_out.rs:5:18: 5:19
+        drop(_3) -> bb2;                 // scope 0 at $DIR/uniform_array_move_out.rs:5:18: 5:19
     }
 
     bb4: {
-        StorageDead(_3);                 // bb4[0]: scope 0 at $DIR/uniform_array_move_out.rs:5:18: 5:19
-        StorageLive(_4);                 // bb4[1]: scope 0 at $DIR/uniform_array_move_out.rs:5:21: 5:26
-        StorageLive(_5);                 // bb4[2]: scope 0 at $DIR/uniform_array_move_out.rs:5:21: 5:26
-        _5 = Box(i32);                   // bb4[3]: scope 0 at $DIR/uniform_array_move_out.rs:5:21: 5:26
-        (*_5) = const 2i32;              // bb4[4]: scope 0 at $DIR/uniform_array_move_out.rs:5:25: 5:26
+        StorageDead(_3);                 // scope 0 at $DIR/uniform_array_move_out.rs:5:18: 5:19
+        StorageLive(_4);                 // scope 0 at $DIR/uniform_array_move_out.rs:5:21: 5:26
+        StorageLive(_5);                 // scope 0 at $DIR/uniform_array_move_out.rs:5:21: 5:26
+        _5 = Box(i32);                   // scope 0 at $DIR/uniform_array_move_out.rs:5:21: 5:26
+        (*_5) = const 2i32;              // scope 0 at $DIR/uniform_array_move_out.rs:5:25: 5:26
                                          // ty::Const
                                          // + ty: i32
                                          // + val: Value(Scalar(0x00000002))
                                          // mir::Constant
                                          // + span: $DIR/uniform_array_move_out.rs:5:25: 5:26
                                          // + literal: Const { ty: i32, val: Value(Scalar(0x00000002)) }
-        _4 = move _5;                    // bb4[5]: scope 0 at $DIR/uniform_array_move_out.rs:5:21: 5:26
-        drop(_5) -> [return: bb7, unwind: bb5]; // bb4[6]: scope 0 at $DIR/uniform_array_move_out.rs:5:25: 5:26
+        _4 = move _5;                    // scope 0 at $DIR/uniform_array_move_out.rs:5:21: 5:26
+        drop(_5) -> [return: bb7, unwind: bb5]; // scope 0 at $DIR/uniform_array_move_out.rs:5:25: 5:26
     }
 
     bb5 (cleanup): {
-        drop(_4) -> bb2;                 // bb5[0]: scope 0 at $DIR/uniform_array_move_out.rs:5:26: 5:27
+        drop(_4) -> bb2;                 // scope 0 at $DIR/uniform_array_move_out.rs:5:26: 5:27
     }
 
     bb6 (cleanup): {
-        drop(_5) -> bb5;                 // bb6[0]: scope 0 at $DIR/uniform_array_move_out.rs:5:25: 5:26
+        drop(_5) -> bb5;                 // scope 0 at $DIR/uniform_array_move_out.rs:5:25: 5:26
     }
 
     bb7: {
-        StorageDead(_5);                 // bb7[0]: scope 0 at $DIR/uniform_array_move_out.rs:5:25: 5:26
-        _1 = [move _2, move _4];         // bb7[1]: scope 0 at $DIR/uniform_array_move_out.rs:5:13: 5:27
-        drop(_4) -> [return: bb8, unwind: bb2]; // bb7[2]: scope 0 at $DIR/uniform_array_move_out.rs:5:26: 5:27
+        StorageDead(_5);                 // scope 0 at $DIR/uniform_array_move_out.rs:5:25: 5:26
+        _1 = [move _2, move _4];         // scope 0 at $DIR/uniform_array_move_out.rs:5:13: 5:27
+        drop(_4) -> [return: bb8, unwind: bb2]; // scope 0 at $DIR/uniform_array_move_out.rs:5:26: 5:27
     }
 
     bb8: {
-        StorageDead(_4);                 // bb8[0]: scope 0 at $DIR/uniform_array_move_out.rs:5:26: 5:27
-        drop(_2) -> [return: bb9, unwind: bb1]; // bb8[1]: scope 0 at $DIR/uniform_array_move_out.rs:5:26: 5:27
+        StorageDead(_4);                 // scope 0 at $DIR/uniform_array_move_out.rs:5:26: 5:27
+        drop(_2) -> [return: bb9, unwind: bb1]; // scope 0 at $DIR/uniform_array_move_out.rs:5:26: 5:27
     }
 
     bb9: {
-        StorageDead(_2);                 // bb9[0]: scope 0 at $DIR/uniform_array_move_out.rs:5:26: 5:27
-        FakeRead(ForLet, _1);            // bb9[1]: scope 0 at $DIR/uniform_array_move_out.rs:5:9: 5:10
-        StorageLive(_6);                 // bb9[2]: scope 1 at $DIR/uniform_array_move_out.rs:6:14: 6:16
-        _6 = move _1[1 of 2];            // bb9[3]: scope 1 at $DIR/uniform_array_move_out.rs:6:14: 6:16
-        _0 = const ();                   // bb9[4]: scope 0 at $DIR/uniform_array_move_out.rs:4:24: 7:2
+        StorageDead(_2);                 // scope 0 at $DIR/uniform_array_move_out.rs:5:26: 5:27
+        FakeRead(ForLet, _1);            // scope 0 at $DIR/uniform_array_move_out.rs:5:9: 5:10
+        StorageLive(_6);                 // scope 1 at $DIR/uniform_array_move_out.rs:6:14: 6:16
+        _6 = move _1[1 of 2];            // scope 1 at $DIR/uniform_array_move_out.rs:6:14: 6:16
+        _0 = const ();                   // scope 0 at $DIR/uniform_array_move_out.rs:4:24: 7:2
                                          // ty::Const
                                          // + ty: ()
                                          // + val: Value(Scalar(<ZST>))
                                          // mir::Constant
                                          // + span: $DIR/uniform_array_move_out.rs:4:24: 7:2
                                          // + literal: Const { ty: (), val: Value(Scalar(<ZST>)) }
-        drop(_6) -> [return: bb12, unwind: bb10]; // bb9[5]: scope 1 at $DIR/uniform_array_move_out.rs:7:1: 7:2
+        drop(_6) -> [return: bb12, unwind: bb10]; // scope 1 at $DIR/uniform_array_move_out.rs:7:1: 7:2
     }
 
     bb10 (cleanup): {
-        drop(_1) -> bb1;                 // bb10[0]: scope 0 at $DIR/uniform_array_move_out.rs:7:1: 7:2
+        drop(_1) -> bb1;                 // scope 0 at $DIR/uniform_array_move_out.rs:7:1: 7:2
     }
 
     bb11 (cleanup): {
-        drop(_6) -> bb10;                // bb11[0]: scope 1 at $DIR/uniform_array_move_out.rs:7:1: 7:2
+        drop(_6) -> bb10;                // scope 1 at $DIR/uniform_array_move_out.rs:7:1: 7:2
     }
 
     bb12: {
-        StorageDead(_6);                 // bb12[0]: scope 1 at $DIR/uniform_array_move_out.rs:7:1: 7:2
-        drop(_1) -> [return: bb13, unwind: bb1]; // bb12[1]: scope 0 at $DIR/uniform_array_move_out.rs:7:1: 7:2
+        StorageDead(_6);                 // scope 1 at $DIR/uniform_array_move_out.rs:7:1: 7:2
+        drop(_1) -> [return: bb13, unwind: bb1]; // scope 0 at $DIR/uniform_array_move_out.rs:7:1: 7:2
     }
 
     bb13: {
-        StorageDead(_1);                 // bb13[0]: scope 0 at $DIR/uniform_array_move_out.rs:7:1: 7:2
-        goto -> bb14;                    // bb13[1]: scope 0 at $DIR/uniform_array_move_out.rs:7:2: 7:2
+        StorageDead(_1);                 // scope 0 at $DIR/uniform_array_move_out.rs:7:1: 7:2
+        goto -> bb14;                    // scope 0 at $DIR/uniform_array_move_out.rs:7:2: 7:2
     }
 
     bb14: {
-        return;                          // bb14[0]: scope 0 at $DIR/uniform_array_move_out.rs:7:2: 7:2
+        return;                          // scope 0 at $DIR/uniform_array_move_out.rs:7:2: 7:2
     }
 }
diff --git a/src/test/mir-opt/uninhabited-enum/rustc.process_never.SimplifyLocals.after.mir b/src/test/mir-opt/uninhabited-enum/rustc.process_never.SimplifyLocals.after.mir
index f2c87336608..c17fe3bb757 100644
--- a/src/test/mir-opt/uninhabited-enum/rustc.process_never.SimplifyLocals.after.mir
+++ b/src/test/mir-opt/uninhabited-enum/rustc.process_never.SimplifyLocals.after.mir
@@ -11,9 +11,9 @@ fn process_never(_1: *const !) -> () {
     }
 
     bb0: {
-        StorageLive(_2);                 // bb0[0]: scope 0 at $DIR/uninhabited-enum.rs:8:8: 8:14
-        _2 = &(*_1);                     // bb0[1]: scope 2 at $DIR/uninhabited-enum.rs:8:26: 8:33
-        StorageDead(_2);                 // bb0[2]: scope 0 at $DIR/uninhabited-enum.rs:9:1: 9:2
-        unreachable;                     // bb0[3]: scope 0 at $DIR/uninhabited-enum.rs:7:39: 9:2
+        StorageLive(_2);                 // scope 0 at $DIR/uninhabited-enum.rs:8:8: 8:14
+        _2 = &(*_1);                     // scope 2 at $DIR/uninhabited-enum.rs:8:26: 8:33
+        StorageDead(_2);                 // scope 0 at $DIR/uninhabited-enum.rs:9:1: 9:2
+        unreachable;                     // scope 0 at $DIR/uninhabited-enum.rs:7:39: 9:2
     }
 }
diff --git a/src/test/mir-opt/uninhabited-enum/rustc.process_void.SimplifyLocals.after.mir b/src/test/mir-opt/uninhabited-enum/rustc.process_void.SimplifyLocals.after.mir
index 1ee2297daac..8cfcd64a70f 100644
--- a/src/test/mir-opt/uninhabited-enum/rustc.process_void.SimplifyLocals.after.mir
+++ b/src/test/mir-opt/uninhabited-enum/rustc.process_void.SimplifyLocals.after.mir
@@ -11,16 +11,16 @@ fn process_void(_1: *const Void) -> () {
     }
 
     bb0: {
-        StorageLive(_2);                 // bb0[0]: scope 0 at $DIR/uninhabited-enum.rs:14:8: 14:14
-        _2 = &(*_1);                     // bb0[1]: scope 2 at $DIR/uninhabited-enum.rs:14:26: 14:33
-        _0 = const ();                   // bb0[2]: scope 0 at $DIR/uninhabited-enum.rs:13:41: 17:2
+        StorageLive(_2);                 // scope 0 at $DIR/uninhabited-enum.rs:14:8: 14:14
+        _2 = &(*_1);                     // scope 2 at $DIR/uninhabited-enum.rs:14:26: 14:33
+        _0 = const ();                   // scope 0 at $DIR/uninhabited-enum.rs:13:41: 17:2
                                          // ty::Const
                                          // + ty: ()
                                          // + val: Value(Scalar(<ZST>))
                                          // mir::Constant
                                          // + span: $DIR/uninhabited-enum.rs:13:41: 17:2
                                          // + literal: Const { ty: (), val: Value(Scalar(<ZST>)) }
-        StorageDead(_2);                 // bb0[3]: scope 0 at $DIR/uninhabited-enum.rs:17:1: 17:2
-        return;                          // bb0[4]: scope 0 at $DIR/uninhabited-enum.rs:17:2: 17:2
+        StorageDead(_2);                 // scope 0 at $DIR/uninhabited-enum.rs:17:1: 17:2
+        return;                          // scope 0 at $DIR/uninhabited-enum.rs:17:2: 17:2
     }
 }
diff --git a/src/test/mir-opt/uninhabited_enum_branching/rustc.main.SimplifyCfg-after-uninhabited-enum-branching.after.mir b/src/test/mir-opt/uninhabited_enum_branching/rustc.main.SimplifyCfg-after-uninhabited-enum-branching.after.mir
index fba77dfe239..4d65f8d1047 100644
--- a/src/test/mir-opt/uninhabited_enum_branching/rustc.main.SimplifyCfg-after-uninhabited-enum-branching.after.mir
+++ b/src/test/mir-opt/uninhabited_enum_branching/rustc.main.SimplifyCfg-after-uninhabited-enum-branching.after.mir
@@ -13,64 +13,64 @@ fn main() -> () {
     let _9: &str;                        // in scope 0 at $DIR/uninhabited_enum_branching.rs:28:21: 28:24
 
     bb0: {
-        StorageLive(_1);                 // bb0[0]: scope 0 at $DIR/uninhabited_enum_branching.rs:20:5: 24:6
-        StorageLive(_2);                 // bb0[1]: scope 0 at $DIR/uninhabited_enum_branching.rs:20:11: 20:19
-        _2 = Test1::C;                   // bb0[2]: scope 0 at $DIR/uninhabited_enum_branching.rs:20:11: 20:19
-        _3 = discriminant(_2);           // bb0[3]: scope 0 at $DIR/uninhabited_enum_branching.rs:21:9: 21:20
-        StorageLive(_5);                 // bb0[4]: scope 0 at $DIR/uninhabited_enum_branching.rs:23:21: 23:24
-        _5 = const "C";                  // bb0[5]: scope 0 at $DIR/uninhabited_enum_branching.rs:23:21: 23:24
+        StorageLive(_1);                 // scope 0 at $DIR/uninhabited_enum_branching.rs:20:5: 24:6
+        StorageLive(_2);                 // scope 0 at $DIR/uninhabited_enum_branching.rs:20:11: 20:19
+        _2 = Test1::C;                   // scope 0 at $DIR/uninhabited_enum_branching.rs:20:11: 20:19
+        _3 = discriminant(_2);           // scope 0 at $DIR/uninhabited_enum_branching.rs:21:9: 21:20
+        StorageLive(_5);                 // scope 0 at $DIR/uninhabited_enum_branching.rs:23:21: 23:24
+        _5 = const "C";                  // scope 0 at $DIR/uninhabited_enum_branching.rs:23:21: 23:24
                                          // ty::Const
                                          // + ty: &str
                                          // + val: Value(Slice { data: Allocation { bytes: [67], relocations: Relocations(SortedMap { data: [] }), undef_mask: UndefMask { blocks: [1], len: Size { raw: 1 } }, size: Size { raw: 1 }, align: Align { pow2: 0 }, mutability: Not, extra: () }, start: 0, end: 1 })
                                          // mir::Constant
                                          // + span: $DIR/uninhabited_enum_branching.rs:23:21: 23:24
                                          // + literal: Const { ty: &str, val: Value(Slice { data: Allocation { bytes: [67], relocations: Relocations(SortedMap { data: [] }), undef_mask: UndefMask { blocks: [1], len: Size { raw: 1 } }, size: Size { raw: 1 }, align: Align { pow2: 0 }, mutability: Not, extra: () }, start: 0, end: 1 }) }
-        _1 = &(*_5);                     // bb0[6]: scope 0 at $DIR/uninhabited_enum_branching.rs:23:21: 23:24
-        StorageDead(_5);                 // bb0[7]: scope 0 at $DIR/uninhabited_enum_branching.rs:23:23: 23:24
-        StorageDead(_2);                 // bb0[8]: scope 0 at $DIR/uninhabited_enum_branching.rs:24:6: 24:7
-        StorageDead(_1);                 // bb0[9]: scope 0 at $DIR/uninhabited_enum_branching.rs:24:6: 24:7
-        StorageLive(_6);                 // bb0[10]: scope 0 at $DIR/uninhabited_enum_branching.rs:26:5: 29:6
-        StorageLive(_7);                 // bb0[11]: scope 0 at $DIR/uninhabited_enum_branching.rs:26:11: 26:19
-        _7 = Test2::D;                   // bb0[12]: scope 0 at $DIR/uninhabited_enum_branching.rs:26:11: 26:19
-        _8 = discriminant(_7);           // bb0[13]: scope 0 at $DIR/uninhabited_enum_branching.rs:27:9: 27:17
-        switchInt(move _8) -> [4isize: bb2, otherwise: bb1]; // bb0[14]: scope 0 at $DIR/uninhabited_enum_branching.rs:27:9: 27:17
+        _1 = &(*_5);                     // scope 0 at $DIR/uninhabited_enum_branching.rs:23:21: 23:24
+        StorageDead(_5);                 // scope 0 at $DIR/uninhabited_enum_branching.rs:23:23: 23:24
+        StorageDead(_2);                 // scope 0 at $DIR/uninhabited_enum_branching.rs:24:6: 24:7
+        StorageDead(_1);                 // scope 0 at $DIR/uninhabited_enum_branching.rs:24:6: 24:7
+        StorageLive(_6);                 // scope 0 at $DIR/uninhabited_enum_branching.rs:26:5: 29:6
+        StorageLive(_7);                 // scope 0 at $DIR/uninhabited_enum_branching.rs:26:11: 26:19
+        _7 = Test2::D;                   // scope 0 at $DIR/uninhabited_enum_branching.rs:26:11: 26:19
+        _8 = discriminant(_7);           // scope 0 at $DIR/uninhabited_enum_branching.rs:27:9: 27:17
+        switchInt(move _8) -> [4isize: bb2, otherwise: bb1]; // scope 0 at $DIR/uninhabited_enum_branching.rs:27:9: 27:17
     }
 
     bb1: {
-        StorageLive(_9);                 // bb1[0]: scope 0 at $DIR/uninhabited_enum_branching.rs:28:21: 28:24
-        _9 = const "E";                  // bb1[1]: scope 0 at $DIR/uninhabited_enum_branching.rs:28:21: 28:24
+        StorageLive(_9);                 // scope 0 at $DIR/uninhabited_enum_branching.rs:28:21: 28:24
+        _9 = const "E";                  // scope 0 at $DIR/uninhabited_enum_branching.rs:28:21: 28:24
                                          // ty::Const
                                          // + ty: &str
                                          // + val: Value(Slice { data: Allocation { bytes: [69], relocations: Relocations(SortedMap { data: [] }), undef_mask: UndefMask { blocks: [1], len: Size { raw: 1 } }, size: Size { raw: 1 }, align: Align { pow2: 0 }, mutability: Not, extra: () }, start: 0, end: 1 })
                                          // mir::Constant
                                          // + span: $DIR/uninhabited_enum_branching.rs:28:21: 28:24
                                          // + literal: Const { ty: &str, val: Value(Slice { data: Allocation { bytes: [69], relocations: Relocations(SortedMap { data: [] }), undef_mask: UndefMask { blocks: [1], len: Size { raw: 1 } }, size: Size { raw: 1 }, align: Align { pow2: 0 }, mutability: Not, extra: () }, start: 0, end: 1 }) }
-        _6 = &(*_9);                     // bb1[2]: scope 0 at $DIR/uninhabited_enum_branching.rs:28:21: 28:24
-        StorageDead(_9);                 // bb1[3]: scope 0 at $DIR/uninhabited_enum_branching.rs:28:23: 28:24
-        goto -> bb3;                     // bb1[4]: scope 0 at $DIR/uninhabited_enum_branching.rs:26:5: 29:6
+        _6 = &(*_9);                     // scope 0 at $DIR/uninhabited_enum_branching.rs:28:21: 28:24
+        StorageDead(_9);                 // scope 0 at $DIR/uninhabited_enum_branching.rs:28:23: 28:24
+        goto -> bb3;                     // scope 0 at $DIR/uninhabited_enum_branching.rs:26:5: 29:6
     }
 
     bb2: {
-        _6 = const "D";                  // bb2[0]: scope 0 at $DIR/uninhabited_enum_branching.rs:27:21: 27:24
+        _6 = const "D";                  // scope 0 at $DIR/uninhabited_enum_branching.rs:27:21: 27:24
                                          // ty::Const
                                          // + ty: &str
                                          // + val: Value(Slice { data: Allocation { bytes: [68], relocations: Relocations(SortedMap { data: [] }), undef_mask: UndefMask { blocks: [1], len: Size { raw: 1 } }, size: Size { raw: 1 }, align: Align { pow2: 0 }, mutability: Not, extra: () }, start: 0, end: 1 })
                                          // mir::Constant
                                          // + span: $DIR/uninhabited_enum_branching.rs:27:21: 27:24
                                          // + literal: Const { ty: &str, val: Value(Slice { data: Allocation { bytes: [68], relocations: Relocations(SortedMap { data: [] }), undef_mask: UndefMask { blocks: [1], len: Size { raw: 1 } }, size: Size { raw: 1 }, align: Align { pow2: 0 }, mutability: Not, extra: () }, start: 0, end: 1 }) }
-        goto -> bb3;                     // bb2[1]: scope 0 at $DIR/uninhabited_enum_branching.rs:26:5: 29:6
+        goto -> bb3;                     // scope 0 at $DIR/uninhabited_enum_branching.rs:26:5: 29:6
     }
 
     bb3: {
-        StorageDead(_7);                 // bb3[0]: scope 0 at $DIR/uninhabited_enum_branching.rs:29:6: 29:7
-        StorageDead(_6);                 // bb3[1]: scope 0 at $DIR/uninhabited_enum_branching.rs:29:6: 29:7
-        _0 = const ();                   // bb3[2]: scope 0 at $DIR/uninhabited_enum_branching.rs:19:11: 30:2
+        StorageDead(_7);                 // scope 0 at $DIR/uninhabited_enum_branching.rs:29:6: 29:7
+        StorageDead(_6);                 // scope 0 at $DIR/uninhabited_enum_branching.rs:29:6: 29:7
+        _0 = const ();                   // scope 0 at $DIR/uninhabited_enum_branching.rs:19:11: 30:2
                                          // ty::Const
                                          // + ty: ()
                                          // + val: Value(Scalar(<ZST>))
                                          // mir::Constant
                                          // + span: $DIR/uninhabited_enum_branching.rs:19:11: 30:2
                                          // + literal: Const { ty: (), val: Value(Scalar(<ZST>)) }
-        return;                          // bb3[3]: scope 0 at $DIR/uninhabited_enum_branching.rs:30:2: 30:2
+        return;                          // scope 0 at $DIR/uninhabited_enum_branching.rs:30:2: 30:2
     }
 }
diff --git a/src/test/mir-opt/uninhabited_enum_branching/rustc.main.UninhabitedEnumBranching.diff b/src/test/mir-opt/uninhabited_enum_branching/rustc.main.UninhabitedEnumBranching.diff
index 35842fdaa4e..da9dd8b0963 100644
--- a/src/test/mir-opt/uninhabited_enum_branching/rustc.main.UninhabitedEnumBranching.diff
+++ b/src/test/mir-opt/uninhabited_enum_branching/rustc.main.UninhabitedEnumBranching.diff
@@ -14,99 +14,99 @@
       let _9: &str;                        // in scope 0 at $DIR/uninhabited_enum_branching.rs:28:21: 28:24
   
       bb0: {
-          StorageLive(_1);                 // bb0[0]: scope 0 at $DIR/uninhabited_enum_branching.rs:20:5: 24:6
-          StorageLive(_2);                 // bb0[1]: scope 0 at $DIR/uninhabited_enum_branching.rs:20:11: 20:19
-          _2 = Test1::C;                   // bb0[2]: scope 0 at $DIR/uninhabited_enum_branching.rs:20:11: 20:19
-          _3 = discriminant(_2);           // bb0[3]: scope 0 at $DIR/uninhabited_enum_branching.rs:21:9: 21:20
--         switchInt(move _3) -> [0isize: bb2, 1isize: bb3, otherwise: bb1]; // bb0[4]: scope 0 at $DIR/uninhabited_enum_branching.rs:21:9: 21:20
-+         switchInt(move _3) -> bb1;       // bb0[4]: scope 0 at $DIR/uninhabited_enum_branching.rs:21:9: 21:20
+          StorageLive(_1);                 // scope 0 at $DIR/uninhabited_enum_branching.rs:20:5: 24:6
+          StorageLive(_2);                 // scope 0 at $DIR/uninhabited_enum_branching.rs:20:11: 20:19
+          _2 = Test1::C;                   // scope 0 at $DIR/uninhabited_enum_branching.rs:20:11: 20:19
+          _3 = discriminant(_2);           // scope 0 at $DIR/uninhabited_enum_branching.rs:21:9: 21:20
+-         switchInt(move _3) -> [0isize: bb2, 1isize: bb3, otherwise: bb1]; // scope 0 at $DIR/uninhabited_enum_branching.rs:21:9: 21:20
++         switchInt(move _3) -> bb1;       // scope 0 at $DIR/uninhabited_enum_branching.rs:21:9: 21:20
       }
   
       bb1: {
-          StorageLive(_5);                 // bb1[0]: scope 0 at $DIR/uninhabited_enum_branching.rs:23:21: 23:24
-          _5 = const "C";                  // bb1[1]: scope 0 at $DIR/uninhabited_enum_branching.rs:23:21: 23:24
+          StorageLive(_5);                 // scope 0 at $DIR/uninhabited_enum_branching.rs:23:21: 23:24
+          _5 = const "C";                  // scope 0 at $DIR/uninhabited_enum_branching.rs:23:21: 23:24
                                            // ty::Const
                                            // + ty: &str
                                            // + val: Value(Slice { data: Allocation { bytes: [67], relocations: Relocations(SortedMap { data: [] }), undef_mask: UndefMask { blocks: [1], len: Size { raw: 1 } }, size: Size { raw: 1 }, align: Align { pow2: 0 }, mutability: Not, extra: () }, start: 0, end: 1 })
                                            // mir::Constant
                                            // + span: $DIR/uninhabited_enum_branching.rs:23:21: 23:24
                                            // + literal: Const { ty: &str, val: Value(Slice { data: Allocation { bytes: [67], relocations: Relocations(SortedMap { data: [] }), undef_mask: UndefMask { blocks: [1], len: Size { raw: 1 } }, size: Size { raw: 1 }, align: Align { pow2: 0 }, mutability: Not, extra: () }, start: 0, end: 1 }) }
-          _1 = &(*_5);                     // bb1[2]: scope 0 at $DIR/uninhabited_enum_branching.rs:23:21: 23:24
-          StorageDead(_5);                 // bb1[3]: scope 0 at $DIR/uninhabited_enum_branching.rs:23:23: 23:24
-          goto -> bb4;                     // bb1[4]: scope 0 at $DIR/uninhabited_enum_branching.rs:20:5: 24:6
+          _1 = &(*_5);                     // scope 0 at $DIR/uninhabited_enum_branching.rs:23:21: 23:24
+          StorageDead(_5);                 // scope 0 at $DIR/uninhabited_enum_branching.rs:23:23: 23:24
+          goto -> bb4;                     // scope 0 at $DIR/uninhabited_enum_branching.rs:20:5: 24:6
       }
   
       bb2: {
-          _1 = const "A(Empty)";           // bb2[0]: scope 0 at $DIR/uninhabited_enum_branching.rs:21:24: 21:34
+          _1 = const "A(Empty)";           // scope 0 at $DIR/uninhabited_enum_branching.rs:21:24: 21:34
                                            // ty::Const
                                            // + ty: &str
                                            // + val: Value(Slice { data: Allocation { bytes: [65, 40, 69, 109, 112, 116, 121, 41], relocations: Relocations(SortedMap { data: [] }), undef_mask: UndefMask { blocks: [255], len: Size { raw: 8 } }, size: Size { raw: 8 }, align: Align { pow2: 0 }, mutability: Not, extra: () }, start: 0, end: 8 })
                                            // mir::Constant
                                            // + span: $DIR/uninhabited_enum_branching.rs:21:24: 21:34
                                            // + literal: Const { ty: &str, val: Value(Slice { data: Allocation { bytes: [65, 40, 69, 109, 112, 116, 121, 41], relocations: Relocations(SortedMap { data: [] }), undef_mask: UndefMask { blocks: [255], len: Size { raw: 8 } }, size: Size { raw: 8 }, align: Align { pow2: 0 }, mutability: Not, extra: () }, start: 0, end: 8 }) }
-          goto -> bb4;                     // bb2[1]: scope 0 at $DIR/uninhabited_enum_branching.rs:20:5: 24:6
+          goto -> bb4;                     // scope 0 at $DIR/uninhabited_enum_branching.rs:20:5: 24:6
       }
   
       bb3: {
-          StorageLive(_4);                 // bb3[0]: scope 0 at $DIR/uninhabited_enum_branching.rs:22:24: 22:34
-          _4 = const "B(Empty)";           // bb3[1]: scope 0 at $DIR/uninhabited_enum_branching.rs:22:24: 22:34
+          StorageLive(_4);                 // scope 0 at $DIR/uninhabited_enum_branching.rs:22:24: 22:34
+          _4 = const "B(Empty)";           // scope 0 at $DIR/uninhabited_enum_branching.rs:22:24: 22:34
                                            // ty::Const
                                            // + ty: &str
                                            // + val: Value(Slice { data: Allocation { bytes: [66, 40, 69, 109, 112, 116, 121, 41], relocations: Relocations(SortedMap { data: [] }), undef_mask: UndefMask { blocks: [255], len: Size { raw: 8 } }, size: Size { raw: 8 }, align: Align { pow2: 0 }, mutability: Not, extra: () }, start: 0, end: 8 })
                                            // mir::Constant
                                            // + span: $DIR/uninhabited_enum_branching.rs:22:24: 22:34
                                            // + literal: Const { ty: &str, val: Value(Slice { data: Allocation { bytes: [66, 40, 69, 109, 112, 116, 121, 41], relocations: Relocations(SortedMap { data: [] }), undef_mask: UndefMask { blocks: [255], len: Size { raw: 8 } }, size: Size { raw: 8 }, align: Align { pow2: 0 }, mutability: Not, extra: () }, start: 0, end: 8 }) }
-          _1 = &(*_4);                     // bb3[2]: scope 0 at $DIR/uninhabited_enum_branching.rs:22:24: 22:34
-          StorageDead(_4);                 // bb3[3]: scope 0 at $DIR/uninhabited_enum_branching.rs:22:33: 22:34
-          goto -> bb4;                     // bb3[4]: scope 0 at $DIR/uninhabited_enum_branching.rs:20:5: 24:6
+          _1 = &(*_4);                     // scope 0 at $DIR/uninhabited_enum_branching.rs:22:24: 22:34
+          StorageDead(_4);                 // scope 0 at $DIR/uninhabited_enum_branching.rs:22:33: 22:34
+          goto -> bb4;                     // scope 0 at $DIR/uninhabited_enum_branching.rs:20:5: 24:6
       }
   
       bb4: {
-          StorageDead(_2);                 // bb4[0]: scope 0 at $DIR/uninhabited_enum_branching.rs:24:6: 24:7
-          StorageDead(_1);                 // bb4[1]: scope 0 at $DIR/uninhabited_enum_branching.rs:24:6: 24:7
-          StorageLive(_6);                 // bb4[2]: scope 0 at $DIR/uninhabited_enum_branching.rs:26:5: 29:6
-          StorageLive(_7);                 // bb4[3]: scope 0 at $DIR/uninhabited_enum_branching.rs:26:11: 26:19
-          _7 = Test2::D;                   // bb4[4]: scope 0 at $DIR/uninhabited_enum_branching.rs:26:11: 26:19
-          _8 = discriminant(_7);           // bb4[5]: scope 0 at $DIR/uninhabited_enum_branching.rs:27:9: 27:17
-          switchInt(move _8) -> [4isize: bb6, otherwise: bb5]; // bb4[6]: scope 0 at $DIR/uninhabited_enum_branching.rs:27:9: 27:17
+          StorageDead(_2);                 // scope 0 at $DIR/uninhabited_enum_branching.rs:24:6: 24:7
+          StorageDead(_1);                 // scope 0 at $DIR/uninhabited_enum_branching.rs:24:6: 24:7
+          StorageLive(_6);                 // scope 0 at $DIR/uninhabited_enum_branching.rs:26:5: 29:6
+          StorageLive(_7);                 // scope 0 at $DIR/uninhabited_enum_branching.rs:26:11: 26:19
+          _7 = Test2::D;                   // scope 0 at $DIR/uninhabited_enum_branching.rs:26:11: 26:19
+          _8 = discriminant(_7);           // scope 0 at $DIR/uninhabited_enum_branching.rs:27:9: 27:17
+          switchInt(move _8) -> [4isize: bb6, otherwise: bb5]; // scope 0 at $DIR/uninhabited_enum_branching.rs:27:9: 27:17
       }
   
       bb5: {
-          StorageLive(_9);                 // bb5[0]: scope 0 at $DIR/uninhabited_enum_branching.rs:28:21: 28:24
-          _9 = const "E";                  // bb5[1]: scope 0 at $DIR/uninhabited_enum_branching.rs:28:21: 28:24
+          StorageLive(_9);                 // scope 0 at $DIR/uninhabited_enum_branching.rs:28:21: 28:24
+          _9 = const "E";                  // scope 0 at $DIR/uninhabited_enum_branching.rs:28:21: 28:24
                                            // ty::Const
                                            // + ty: &str
                                            // + val: Value(Slice { data: Allocation { bytes: [69], relocations: Relocations(SortedMap { data: [] }), undef_mask: UndefMask { blocks: [1], len: Size { raw: 1 } }, size: Size { raw: 1 }, align: Align { pow2: 0 }, mutability: Not, extra: () }, start: 0, end: 1 })
                                            // mir::Constant
                                            // + span: $DIR/uninhabited_enum_branching.rs:28:21: 28:24
                                            // + literal: Const { ty: &str, val: Value(Slice { data: Allocation { bytes: [69], relocations: Relocations(SortedMap { data: [] }), undef_mask: UndefMask { blocks: [1], len: Size { raw: 1 } }, size: Size { raw: 1 }, align: Align { pow2: 0 }, mutability: Not, extra: () }, start: 0, end: 1 }) }
-          _6 = &(*_9);                     // bb5[2]: scope 0 at $DIR/uninhabited_enum_branching.rs:28:21: 28:24
-          StorageDead(_9);                 // bb5[3]: scope 0 at $DIR/uninhabited_enum_branching.rs:28:23: 28:24
-          goto -> bb7;                     // bb5[4]: scope 0 at $DIR/uninhabited_enum_branching.rs:26:5: 29:6
+          _6 = &(*_9);                     // scope 0 at $DIR/uninhabited_enum_branching.rs:28:21: 28:24
+          StorageDead(_9);                 // scope 0 at $DIR/uninhabited_enum_branching.rs:28:23: 28:24
+          goto -> bb7;                     // scope 0 at $DIR/uninhabited_enum_branching.rs:26:5: 29:6
       }
   
       bb6: {
-          _6 = const "D";                  // bb6[0]: scope 0 at $DIR/uninhabited_enum_branching.rs:27:21: 27:24
+          _6 = const "D";                  // scope 0 at $DIR/uninhabited_enum_branching.rs:27:21: 27:24
                                            // ty::Const
                                            // + ty: &str
                                            // + val: Value(Slice { data: Allocation { bytes: [68], relocations: Relocations(SortedMap { data: [] }), undef_mask: UndefMask { blocks: [1], len: Size { raw: 1 } }, size: Size { raw: 1 }, align: Align { pow2: 0 }, mutability: Not, extra: () }, start: 0, end: 1 })
                                            // mir::Constant
                                            // + span: $DIR/uninhabited_enum_branching.rs:27:21: 27:24
                                            // + literal: Const { ty: &str, val: Value(Slice { data: Allocation { bytes: [68], relocations: Relocations(SortedMap { data: [] }), undef_mask: UndefMask { blocks: [1], len: Size { raw: 1 } }, size: Size { raw: 1 }, align: Align { pow2: 0 }, mutability: Not, extra: () }, start: 0, end: 1 }) }
-          goto -> bb7;                     // bb6[1]: scope 0 at $DIR/uninhabited_enum_branching.rs:26:5: 29:6
+          goto -> bb7;                     // scope 0 at $DIR/uninhabited_enum_branching.rs:26:5: 29:6
       }
   
       bb7: {
-          StorageDead(_7);                 // bb7[0]: scope 0 at $DIR/uninhabited_enum_branching.rs:29:6: 29:7
-          StorageDead(_6);                 // bb7[1]: scope 0 at $DIR/uninhabited_enum_branching.rs:29:6: 29:7
-          _0 = const ();                   // bb7[2]: scope 0 at $DIR/uninhabited_enum_branching.rs:19:11: 30:2
+          StorageDead(_7);                 // scope 0 at $DIR/uninhabited_enum_branching.rs:29:6: 29:7
+          StorageDead(_6);                 // scope 0 at $DIR/uninhabited_enum_branching.rs:29:6: 29:7
+          _0 = const ();                   // scope 0 at $DIR/uninhabited_enum_branching.rs:19:11: 30:2
                                            // ty::Const
                                            // + ty: ()
                                            // + val: Value(Scalar(<ZST>))
                                            // mir::Constant
                                            // + span: $DIR/uninhabited_enum_branching.rs:19:11: 30:2
                                            // + literal: Const { ty: (), val: Value(Scalar(<ZST>)) }
-          return;                          // bb7[3]: scope 0 at $DIR/uninhabited_enum_branching.rs:30:2: 30:2
+          return;                          // scope 0 at $DIR/uninhabited_enum_branching.rs:30:2: 30:2
       }
   }
   
diff --git a/src/test/mir-opt/unreachable/rustc.main.UnreachablePropagation.diff b/src/test/mir-opt/unreachable/rustc.main.UnreachablePropagation.diff
index d530a999409..ccd9612cadd 100644
--- a/src/test/mir-opt/unreachable/rustc.main.UnreachablePropagation.diff
+++ b/src/test/mir-opt/unreachable/rustc.main.UnreachablePropagation.diff
@@ -18,8 +18,8 @@
       }
   
       bb0: {
-          StorageLive(_1);                 // bb0[0]: scope 0 at $DIR/unreachable.rs:9:23: 9:30
-          _1 = const empty() -> bb1;       // bb0[1]: scope 0 at $DIR/unreachable.rs:9:23: 9:30
+          StorageLive(_1);                 // scope 0 at $DIR/unreachable.rs:9:23: 9:30
+          _1 = const empty() -> bb1;       // scope 0 at $DIR/unreachable.rs:9:23: 9:30
                                            // ty::Const
                                            // + ty: fn() -> std::option::Option<Empty> {empty}
                                            // + val: Value(Scalar(<ZST>))
@@ -29,80 +29,80 @@
       }
   
       bb1: {
-          _2 = discriminant(_1);           // bb1[0]: scope 0 at $DIR/unreachable.rs:9:12: 9:20
--         switchInt(move _2) -> [1isize: bb3, otherwise: bb2]; // bb1[1]: scope 0 at $DIR/unreachable.rs:9:12: 9:20
-+         goto -> bb2;                     // bb1[1]: scope 0 at $DIR/unreachable.rs:9:12: 9:20
+          _2 = discriminant(_1);           // scope 0 at $DIR/unreachable.rs:9:12: 9:20
+-         switchInt(move _2) -> [1isize: bb3, otherwise: bb2]; // scope 0 at $DIR/unreachable.rs:9:12: 9:20
++         goto -> bb2;                     // scope 0 at $DIR/unreachable.rs:9:12: 9:20
       }
   
       bb2: {
-          _0 = const ();                   // bb2[0]: scope 0 at $DIR/unreachable.rs:9:5: 19:6
+          _0 = const ();                   // scope 0 at $DIR/unreachable.rs:9:5: 19:6
                                            // ty::Const
                                            // + ty: ()
                                            // + val: Value(Scalar(<ZST>))
                                            // mir::Constant
                                            // + span: $DIR/unreachable.rs:9:5: 19:6
                                            // + literal: Const { ty: (), val: Value(Scalar(<ZST>)) }
-          StorageDead(_1);                 // bb2[1]: scope 0 at $DIR/unreachable.rs:20:1: 20:2
-          return;                          // bb2[2]: scope 0 at $DIR/unreachable.rs:20:2: 20:2
+          StorageDead(_1);                 // scope 0 at $DIR/unreachable.rs:20:1: 20:2
+          return;                          // scope 0 at $DIR/unreachable.rs:20:2: 20:2
 -     }
 - 
 -     bb3: {
--         StorageLive(_3);                 // bb3[0]: scope 0 at $DIR/unreachable.rs:9:17: 9:19
--         _3 = move ((_1 as Some).0: Empty); // bb3[1]: scope 0 at $DIR/unreachable.rs:9:17: 9:19
--         StorageLive(_4);                 // bb3[2]: scope 1 at $DIR/unreachable.rs:10:13: 10:19
--         StorageLive(_5);                 // bb3[3]: scope 2 at $DIR/unreachable.rs:12:9: 16:10
--         StorageLive(_6);                 // bb3[4]: scope 2 at $DIR/unreachable.rs:12:12: 12:16
--         _6 = const true;                 // bb3[5]: scope 2 at $DIR/unreachable.rs:12:12: 12:16
+-         StorageLive(_3);                 // scope 0 at $DIR/unreachable.rs:9:17: 9:19
+-         _3 = move ((_1 as Some).0: Empty); // scope 0 at $DIR/unreachable.rs:9:17: 9:19
+-         StorageLive(_4);                 // scope 1 at $DIR/unreachable.rs:10:13: 10:19
+-         StorageLive(_5);                 // scope 2 at $DIR/unreachable.rs:12:9: 16:10
+-         StorageLive(_6);                 // scope 2 at $DIR/unreachable.rs:12:12: 12:16
+-         _6 = const true;                 // scope 2 at $DIR/unreachable.rs:12:12: 12:16
 -                                          // ty::Const
 -                                          // + ty: bool
 -                                          // + val: Value(Scalar(0x01))
 -                                          // mir::Constant
 -                                          // + span: $DIR/unreachable.rs:12:12: 12:16
 -                                          // + literal: Const { ty: bool, val: Value(Scalar(0x01)) }
--         switchInt(_6) -> [false: bb4, otherwise: bb5]; // bb3[6]: scope 2 at $DIR/unreachable.rs:12:9: 16:10
+-         switchInt(_6) -> [false: bb4, otherwise: bb5]; // scope 2 at $DIR/unreachable.rs:12:9: 16:10
 -     }
 - 
 -     bb4: {
--         _4 = const 42i32;                // bb4[0]: scope 2 at $DIR/unreachable.rs:15:13: 15:20
+-         _4 = const 42i32;                // scope 2 at $DIR/unreachable.rs:15:13: 15:20
 -                                          // ty::Const
 -                                          // + ty: i32
 -                                          // + val: Value(Scalar(0x0000002a))
 -                                          // mir::Constant
 -                                          // + span: $DIR/unreachable.rs:15:18: 15:20
 -                                          // + literal: Const { ty: i32, val: Value(Scalar(0x0000002a)) }
--         _5 = const ();                   // bb4[1]: scope 2 at $DIR/unreachable.rs:14:16: 16:10
+-         _5 = const ();                   // scope 2 at $DIR/unreachable.rs:14:16: 16:10
 -                                          // ty::Const
 -                                          // + ty: ()
 -                                          // + val: Value(Scalar(<ZST>))
 -                                          // mir::Constant
 -                                          // + span: $DIR/unreachable.rs:14:16: 16:10
 -                                          // + literal: Const { ty: (), val: Value(Scalar(<ZST>)) }
--         goto -> bb6;                     // bb4[2]: scope 2 at $DIR/unreachable.rs:12:9: 16:10
+-         goto -> bb6;                     // scope 2 at $DIR/unreachable.rs:12:9: 16:10
 -     }
 - 
 -     bb5: {
--         _4 = const 21i32;                // bb5[0]: scope 2 at $DIR/unreachable.rs:13:13: 13:20
+-         _4 = const 21i32;                // scope 2 at $DIR/unreachable.rs:13:13: 13:20
 -                                          // ty::Const
 -                                          // + ty: i32
 -                                          // + val: Value(Scalar(0x00000015))
 -                                          // mir::Constant
 -                                          // + span: $DIR/unreachable.rs:13:18: 13:20
 -                                          // + literal: Const { ty: i32, val: Value(Scalar(0x00000015)) }
--         _5 = const ();                   // bb5[1]: scope 2 at $DIR/unreachable.rs:12:17: 14:10
+-         _5 = const ();                   // scope 2 at $DIR/unreachable.rs:12:17: 14:10
 -                                          // ty::Const
 -                                          // + ty: ()
 -                                          // + val: Value(Scalar(<ZST>))
 -                                          // mir::Constant
 -                                          // + span: $DIR/unreachable.rs:12:17: 14:10
 -                                          // + literal: Const { ty: (), val: Value(Scalar(<ZST>)) }
--         goto -> bb6;                     // bb5[2]: scope 2 at $DIR/unreachable.rs:12:9: 16:10
+-         goto -> bb6;                     // scope 2 at $DIR/unreachable.rs:12:9: 16:10
 -     }
 - 
 -     bb6: {
--         StorageDead(_6);                 // bb6[0]: scope 2 at $DIR/unreachable.rs:16:9: 16:10
--         StorageDead(_5);                 // bb6[1]: scope 2 at $DIR/unreachable.rs:16:9: 16:10
--         StorageLive(_7);                 // bb6[2]: scope 2 at $DIR/unreachable.rs:18:9: 18:21
--         unreachable;                     // bb6[3]: scope 2 at $DIR/unreachable.rs:18:15: 18:17
+-         StorageDead(_6);                 // scope 2 at $DIR/unreachable.rs:16:9: 16:10
+-         StorageDead(_5);                 // scope 2 at $DIR/unreachable.rs:16:9: 16:10
+-         StorageLive(_7);                 // scope 2 at $DIR/unreachable.rs:18:9: 18:21
+-         unreachable;                     // scope 2 at $DIR/unreachable.rs:18:15: 18:17
       }
   }
   
diff --git a/src/test/mir-opt/unreachable_asm/rustc.main.UnreachablePropagation.diff b/src/test/mir-opt/unreachable_asm/rustc.main.UnreachablePropagation.diff
index 2b3ab80fa0f..449bea06207 100644
--- a/src/test/mir-opt/unreachable_asm/rustc.main.UnreachablePropagation.diff
+++ b/src/test/mir-opt/unreachable_asm/rustc.main.UnreachablePropagation.diff
@@ -21,8 +21,8 @@
       }
   
       bb0: {
-          StorageLive(_1);                 // bb0[0]: scope 0 at $DIR/unreachable_asm.rs:11:23: 11:30
-          _1 = const empty() -> bb1;       // bb0[1]: scope 0 at $DIR/unreachable_asm.rs:11:23: 11:30
+          StorageLive(_1);                 // scope 0 at $DIR/unreachable_asm.rs:11:23: 11:30
+          _1 = const empty() -> bb1;       // scope 0 at $DIR/unreachable_asm.rs:11:23: 11:30
                                            // ty::Const
                                            // + ty: fn() -> std::option::Option<Empty> {empty}
                                            // + val: Value(Scalar(<ZST>))
@@ -32,89 +32,89 @@
       }
   
       bb1: {
-          _2 = discriminant(_1);           // bb1[0]: scope 0 at $DIR/unreachable_asm.rs:11:12: 11:20
-          switchInt(move _2) -> [1isize: bb3, otherwise: bb2]; // bb1[1]: scope 0 at $DIR/unreachable_asm.rs:11:12: 11:20
+          _2 = discriminant(_1);           // scope 0 at $DIR/unreachable_asm.rs:11:12: 11:20
+          switchInt(move _2) -> [1isize: bb3, otherwise: bb2]; // scope 0 at $DIR/unreachable_asm.rs:11:12: 11:20
       }
   
       bb2: {
-          _0 = const ();                   // bb2[0]: scope 0 at $DIR/unreachable_asm.rs:11:5: 23:6
+          _0 = const ();                   // scope 0 at $DIR/unreachable_asm.rs:11:5: 23:6
                                            // ty::Const
                                            // + ty: ()
                                            // + val: Value(Scalar(<ZST>))
                                            // mir::Constant
                                            // + span: $DIR/unreachable_asm.rs:11:5: 23:6
                                            // + literal: Const { ty: (), val: Value(Scalar(<ZST>)) }
-          StorageDead(_1);                 // bb2[1]: scope 0 at $DIR/unreachable_asm.rs:24:1: 24:2
-          return;                          // bb2[2]: scope 0 at $DIR/unreachable_asm.rs:24:2: 24:2
+          StorageDead(_1);                 // scope 0 at $DIR/unreachable_asm.rs:24:1: 24:2
+          return;                          // scope 0 at $DIR/unreachable_asm.rs:24:2: 24:2
       }
   
       bb3: {
-          StorageLive(_3);                 // bb3[0]: scope 0 at $DIR/unreachable_asm.rs:11:17: 11:19
-          _3 = move ((_1 as Some).0: Empty); // bb3[1]: scope 0 at $DIR/unreachable_asm.rs:11:17: 11:19
-          StorageLive(_4);                 // bb3[2]: scope 1 at $DIR/unreachable_asm.rs:12:13: 12:19
-          StorageLive(_5);                 // bb3[3]: scope 2 at $DIR/unreachable_asm.rs:14:9: 18:10
-          StorageLive(_6);                 // bb3[4]: scope 2 at $DIR/unreachable_asm.rs:14:12: 14:16
-          _6 = const true;                 // bb3[5]: scope 2 at $DIR/unreachable_asm.rs:14:12: 14:16
+          StorageLive(_3);                 // scope 0 at $DIR/unreachable_asm.rs:11:17: 11:19
+          _3 = move ((_1 as Some).0: Empty); // scope 0 at $DIR/unreachable_asm.rs:11:17: 11:19
+          StorageLive(_4);                 // scope 1 at $DIR/unreachable_asm.rs:12:13: 12:19
+          StorageLive(_5);                 // scope 2 at $DIR/unreachable_asm.rs:14:9: 18:10
+          StorageLive(_6);                 // scope 2 at $DIR/unreachable_asm.rs:14:12: 14:16
+          _6 = const true;                 // scope 2 at $DIR/unreachable_asm.rs:14:12: 14:16
                                            // ty::Const
                                            // + ty: bool
                                            // + val: Value(Scalar(0x01))
                                            // mir::Constant
                                            // + span: $DIR/unreachable_asm.rs:14:12: 14:16
                                            // + literal: Const { ty: bool, val: Value(Scalar(0x01)) }
-          switchInt(_6) -> [false: bb4, otherwise: bb5]; // bb3[6]: scope 2 at $DIR/unreachable_asm.rs:14:9: 18:10
+          switchInt(_6) -> [false: bb4, otherwise: bb5]; // scope 2 at $DIR/unreachable_asm.rs:14:9: 18:10
       }
   
       bb4: {
-          _4 = const 42i32;                // bb4[0]: scope 2 at $DIR/unreachable_asm.rs:17:13: 17:20
+          _4 = const 42i32;                // scope 2 at $DIR/unreachable_asm.rs:17:13: 17:20
                                            // ty::Const
                                            // + ty: i32
                                            // + val: Value(Scalar(0x0000002a))
                                            // mir::Constant
                                            // + span: $DIR/unreachable_asm.rs:17:18: 17:20
                                            // + literal: Const { ty: i32, val: Value(Scalar(0x0000002a)) }
-          _5 = const ();                   // bb4[1]: scope 2 at $DIR/unreachable_asm.rs:16:16: 18:10
+          _5 = const ();                   // scope 2 at $DIR/unreachable_asm.rs:16:16: 18:10
                                            // ty::Const
                                            // + ty: ()
                                            // + val: Value(Scalar(<ZST>))
                                            // mir::Constant
                                            // + span: $DIR/unreachable_asm.rs:16:16: 18:10
                                            // + literal: Const { ty: (), val: Value(Scalar(<ZST>)) }
-          goto -> bb6;                     // bb4[2]: scope 2 at $DIR/unreachable_asm.rs:14:9: 18:10
+          goto -> bb6;                     // scope 2 at $DIR/unreachable_asm.rs:14:9: 18:10
       }
   
       bb5: {
-          _4 = const 21i32;                // bb5[0]: scope 2 at $DIR/unreachable_asm.rs:15:13: 15:20
+          _4 = const 21i32;                // scope 2 at $DIR/unreachable_asm.rs:15:13: 15:20
                                            // ty::Const
                                            // + ty: i32
                                            // + val: Value(Scalar(0x00000015))
                                            // mir::Constant
                                            // + span: $DIR/unreachable_asm.rs:15:18: 15:20
                                            // + literal: Const { ty: i32, val: Value(Scalar(0x00000015)) }
-          _5 = const ();                   // bb5[1]: scope 2 at $DIR/unreachable_asm.rs:14:17: 16:10
+          _5 = const ();                   // scope 2 at $DIR/unreachable_asm.rs:14:17: 16:10
                                            // ty::Const
                                            // + ty: ()
                                            // + val: Value(Scalar(<ZST>))
                                            // mir::Constant
                                            // + span: $DIR/unreachable_asm.rs:14:17: 16:10
                                            // + literal: Const { ty: (), val: Value(Scalar(<ZST>)) }
-          goto -> bb6;                     // bb5[2]: scope 2 at $DIR/unreachable_asm.rs:14:9: 18:10
+          goto -> bb6;                     // scope 2 at $DIR/unreachable_asm.rs:14:9: 18:10
       }
   
       bb6: {
-          StorageDead(_6);                 // bb6[0]: scope 2 at $DIR/unreachable_asm.rs:18:9: 18:10
-          StorageDead(_5);                 // bb6[1]: scope 2 at $DIR/unreachable_asm.rs:18:9: 18:10
-          StorageLive(_7);                 // bb6[2]: scope 2 at $DIR/unreachable_asm.rs:21:9: 21:37
-          llvm_asm!(LlvmInlineAsmInner { asm: "NOP", asm_str_style: Cooked, outputs: [], inputs: [], clobbers: [], volatile: true, alignstack: false, dialect: Att } : [] : []); // bb6[3]: scope 3 at $DIR/unreachable_asm.rs:21:18: 21:35
-          _7 = const ();                   // bb6[4]: scope 3 at $DIR/unreachable_asm.rs:21:9: 21:37
+          StorageDead(_6);                 // scope 2 at $DIR/unreachable_asm.rs:18:9: 18:10
+          StorageDead(_5);                 // scope 2 at $DIR/unreachable_asm.rs:18:9: 18:10
+          StorageLive(_7);                 // scope 2 at $DIR/unreachable_asm.rs:21:9: 21:37
+          llvm_asm!(LlvmInlineAsmInner { asm: "NOP", asm_str_style: Cooked, outputs: [], inputs: [], clobbers: [], volatile: true, alignstack: false, dialect: Att } : [] : []); // scope 3 at $DIR/unreachable_asm.rs:21:18: 21:35
+          _7 = const ();                   // scope 3 at $DIR/unreachable_asm.rs:21:9: 21:37
                                            // ty::Const
                                            // + ty: ()
                                            // + val: Value(Scalar(<ZST>))
                                            // mir::Constant
                                            // + span: $DIR/unreachable_asm.rs:21:9: 21:37
                                            // + literal: Const { ty: (), val: Value(Scalar(<ZST>)) }
-          StorageDead(_7);                 // bb6[5]: scope 2 at $DIR/unreachable_asm.rs:21:36: 21:37
-          StorageLive(_8);                 // bb6[6]: scope 2 at $DIR/unreachable_asm.rs:22:9: 22:21
-          unreachable;                     // bb6[7]: scope 2 at $DIR/unreachable_asm.rs:22:15: 22:17
+          StorageDead(_7);                 // scope 2 at $DIR/unreachable_asm.rs:21:36: 21:37
+          StorageLive(_8);                 // scope 2 at $DIR/unreachable_asm.rs:22:9: 22:21
+          unreachable;                     // scope 2 at $DIR/unreachable_asm.rs:22:15: 22:17
       }
   }
   
diff --git a/src/test/mir-opt/unreachable_asm_2/rustc.main.UnreachablePropagation.diff b/src/test/mir-opt/unreachable_asm_2/rustc.main.UnreachablePropagation.diff
index c3760f6a7fc..a152e1dbe89 100644
--- a/src/test/mir-opt/unreachable_asm_2/rustc.main.UnreachablePropagation.diff
+++ b/src/test/mir-opt/unreachable_asm_2/rustc.main.UnreachablePropagation.diff
@@ -24,8 +24,8 @@
       }
   
       bb0: {
-          StorageLive(_1);                 // bb0[0]: scope 0 at $DIR/unreachable_asm_2.rs:11:23: 11:30
-          _1 = const empty() -> bb1;       // bb0[1]: scope 0 at $DIR/unreachable_asm_2.rs:11:23: 11:30
+          StorageLive(_1);                 // scope 0 at $DIR/unreachable_asm_2.rs:11:23: 11:30
+          _1 = const empty() -> bb1;       // scope 0 at $DIR/unreachable_asm_2.rs:11:23: 11:30
                                            // ty::Const
                                            // + ty: fn() -> std::option::Option<Empty> {empty}
                                            // + val: Value(Scalar(<ZST>))
@@ -35,101 +35,101 @@
       }
   
       bb1: {
-          _2 = discriminant(_1);           // bb1[0]: scope 0 at $DIR/unreachable_asm_2.rs:11:12: 11:20
-          switchInt(move _2) -> [1isize: bb3, otherwise: bb2]; // bb1[1]: scope 0 at $DIR/unreachable_asm_2.rs:11:12: 11:20
+          _2 = discriminant(_1);           // scope 0 at $DIR/unreachable_asm_2.rs:11:12: 11:20
+          switchInt(move _2) -> [1isize: bb3, otherwise: bb2]; // scope 0 at $DIR/unreachable_asm_2.rs:11:12: 11:20
       }
   
       bb2: {
-          _0 = const ();                   // bb2[0]: scope 0 at $DIR/unreachable_asm_2.rs:11:5: 25:6
+          _0 = const ();                   // scope 0 at $DIR/unreachable_asm_2.rs:11:5: 25:6
                                            // ty::Const
                                            // + ty: ()
                                            // + val: Value(Scalar(<ZST>))
                                            // mir::Constant
                                            // + span: $DIR/unreachable_asm_2.rs:11:5: 25:6
                                            // + literal: Const { ty: (), val: Value(Scalar(<ZST>)) }
-          StorageDead(_1);                 // bb2[1]: scope 0 at $DIR/unreachable_asm_2.rs:26:1: 26:2
-          return;                          // bb2[2]: scope 0 at $DIR/unreachable_asm_2.rs:26:2: 26:2
+          StorageDead(_1);                 // scope 0 at $DIR/unreachable_asm_2.rs:26:1: 26:2
+          return;                          // scope 0 at $DIR/unreachable_asm_2.rs:26:2: 26:2
       }
   
       bb3: {
-          StorageLive(_3);                 // bb3[0]: scope 0 at $DIR/unreachable_asm_2.rs:11:17: 11:19
-          _3 = move ((_1 as Some).0: Empty); // bb3[1]: scope 0 at $DIR/unreachable_asm_2.rs:11:17: 11:19
-          StorageLive(_4);                 // bb3[2]: scope 1 at $DIR/unreachable_asm_2.rs:12:13: 12:19
-          StorageLive(_5);                 // bb3[3]: scope 2 at $DIR/unreachable_asm_2.rs:14:9: 22:10
-          StorageLive(_6);                 // bb3[4]: scope 2 at $DIR/unreachable_asm_2.rs:14:12: 14:16
-          _6 = const true;                 // bb3[5]: scope 2 at $DIR/unreachable_asm_2.rs:14:12: 14:16
+          StorageLive(_3);                 // scope 0 at $DIR/unreachable_asm_2.rs:11:17: 11:19
+          _3 = move ((_1 as Some).0: Empty); // scope 0 at $DIR/unreachable_asm_2.rs:11:17: 11:19
+          StorageLive(_4);                 // scope 1 at $DIR/unreachable_asm_2.rs:12:13: 12:19
+          StorageLive(_5);                 // scope 2 at $DIR/unreachable_asm_2.rs:14:9: 22:10
+          StorageLive(_6);                 // scope 2 at $DIR/unreachable_asm_2.rs:14:12: 14:16
+          _6 = const true;                 // scope 2 at $DIR/unreachable_asm_2.rs:14:12: 14:16
                                            // ty::Const
                                            // + ty: bool
                                            // + val: Value(Scalar(0x01))
                                            // mir::Constant
                                            // + span: $DIR/unreachable_asm_2.rs:14:12: 14:16
                                            // + literal: Const { ty: bool, val: Value(Scalar(0x01)) }
-          switchInt(_6) -> [false: bb4, otherwise: bb5]; // bb3[6]: scope 2 at $DIR/unreachable_asm_2.rs:14:9: 22:10
+          switchInt(_6) -> [false: bb4, otherwise: bb5]; // scope 2 at $DIR/unreachable_asm_2.rs:14:9: 22:10
       }
   
       bb4: {
-          StorageLive(_8);                 // bb4[0]: scope 2 at $DIR/unreachable_asm_2.rs:20:13: 20:41
-          llvm_asm!(LlvmInlineAsmInner { asm: "NOP", asm_str_style: Cooked, outputs: [], inputs: [], clobbers: [], volatile: true, alignstack: false, dialect: Att } : [] : []); // bb4[1]: scope 4 at $DIR/unreachable_asm_2.rs:20:22: 20:39
-          _8 = const ();                   // bb4[2]: scope 4 at $DIR/unreachable_asm_2.rs:20:13: 20:41
+          StorageLive(_8);                 // scope 2 at $DIR/unreachable_asm_2.rs:20:13: 20:41
+          llvm_asm!(LlvmInlineAsmInner { asm: "NOP", asm_str_style: Cooked, outputs: [], inputs: [], clobbers: [], volatile: true, alignstack: false, dialect: Att } : [] : []); // scope 4 at $DIR/unreachable_asm_2.rs:20:22: 20:39
+          _8 = const ();                   // scope 4 at $DIR/unreachable_asm_2.rs:20:13: 20:41
                                            // ty::Const
                                            // + ty: ()
                                            // + val: Value(Scalar(<ZST>))
                                            // mir::Constant
                                            // + span: $DIR/unreachable_asm_2.rs:20:13: 20:41
                                            // + literal: Const { ty: (), val: Value(Scalar(<ZST>)) }
-          StorageDead(_8);                 // bb4[3]: scope 2 at $DIR/unreachable_asm_2.rs:20:40: 20:41
-          _4 = const 42i32;                // bb4[4]: scope 2 at $DIR/unreachable_asm_2.rs:21:13: 21:20
+          StorageDead(_8);                 // scope 2 at $DIR/unreachable_asm_2.rs:20:40: 20:41
+          _4 = const 42i32;                // scope 2 at $DIR/unreachable_asm_2.rs:21:13: 21:20
                                            // ty::Const
                                            // + ty: i32
                                            // + val: Value(Scalar(0x0000002a))
                                            // mir::Constant
                                            // + span: $DIR/unreachable_asm_2.rs:21:18: 21:20
                                            // + literal: Const { ty: i32, val: Value(Scalar(0x0000002a)) }
-          _5 = const ();                   // bb4[5]: scope 2 at $DIR/unreachable_asm_2.rs:18:16: 22:10
+          _5 = const ();                   // scope 2 at $DIR/unreachable_asm_2.rs:18:16: 22:10
                                            // ty::Const
                                            // + ty: ()
                                            // + val: Value(Scalar(<ZST>))
                                            // mir::Constant
                                            // + span: $DIR/unreachable_asm_2.rs:18:16: 22:10
                                            // + literal: Const { ty: (), val: Value(Scalar(<ZST>)) }
--         goto -> bb6;                     // bb4[6]: scope 2 at $DIR/unreachable_asm_2.rs:14:9: 22:10
-+         unreachable;                     // bb4[6]: scope 2 at $DIR/unreachable_asm_2.rs:14:9: 22:10
+-         goto -> bb6;                     // scope 2 at $DIR/unreachable_asm_2.rs:14:9: 22:10
++         unreachable;                     // scope 2 at $DIR/unreachable_asm_2.rs:14:9: 22:10
       }
   
       bb5: {
-          StorageLive(_7);                 // bb5[0]: scope 2 at $DIR/unreachable_asm_2.rs:16:13: 16:41
-          llvm_asm!(LlvmInlineAsmInner { asm: "NOP", asm_str_style: Cooked, outputs: [], inputs: [], clobbers: [], volatile: true, alignstack: false, dialect: Att } : [] : []); // bb5[1]: scope 3 at $DIR/unreachable_asm_2.rs:16:22: 16:39
-          _7 = const ();                   // bb5[2]: scope 3 at $DIR/unreachable_asm_2.rs:16:13: 16:41
+          StorageLive(_7);                 // scope 2 at $DIR/unreachable_asm_2.rs:16:13: 16:41
+          llvm_asm!(LlvmInlineAsmInner { asm: "NOP", asm_str_style: Cooked, outputs: [], inputs: [], clobbers: [], volatile: true, alignstack: false, dialect: Att } : [] : []); // scope 3 at $DIR/unreachable_asm_2.rs:16:22: 16:39
+          _7 = const ();                   // scope 3 at $DIR/unreachable_asm_2.rs:16:13: 16:41
                                            // ty::Const
                                            // + ty: ()
                                            // + val: Value(Scalar(<ZST>))
                                            // mir::Constant
                                            // + span: $DIR/unreachable_asm_2.rs:16:13: 16:41
                                            // + literal: Const { ty: (), val: Value(Scalar(<ZST>)) }
-          StorageDead(_7);                 // bb5[3]: scope 2 at $DIR/unreachable_asm_2.rs:16:40: 16:41
-          _4 = const 21i32;                // bb5[4]: scope 2 at $DIR/unreachable_asm_2.rs:17:13: 17:20
+          StorageDead(_7);                 // scope 2 at $DIR/unreachable_asm_2.rs:16:40: 16:41
+          _4 = const 21i32;                // scope 2 at $DIR/unreachable_asm_2.rs:17:13: 17:20
                                            // ty::Const
                                            // + ty: i32
                                            // + val: Value(Scalar(0x00000015))
                                            // mir::Constant
                                            // + span: $DIR/unreachable_asm_2.rs:17:18: 17:20
                                            // + literal: Const { ty: i32, val: Value(Scalar(0x00000015)) }
-          _5 = const ();                   // bb5[5]: scope 2 at $DIR/unreachable_asm_2.rs:14:17: 18:10
+          _5 = const ();                   // scope 2 at $DIR/unreachable_asm_2.rs:14:17: 18:10
                                            // ty::Const
                                            // + ty: ()
                                            // + val: Value(Scalar(<ZST>))
                                            // mir::Constant
                                            // + span: $DIR/unreachable_asm_2.rs:14:17: 18:10
                                            // + literal: Const { ty: (), val: Value(Scalar(<ZST>)) }
--         goto -> bb6;                     // bb5[6]: scope 2 at $DIR/unreachable_asm_2.rs:14:9: 22:10
+-         goto -> bb6;                     // scope 2 at $DIR/unreachable_asm_2.rs:14:9: 22:10
 -     }
 - 
 -     bb6: {
--         StorageDead(_6);                 // bb6[0]: scope 2 at $DIR/unreachable_asm_2.rs:22:9: 22:10
--         StorageDead(_5);                 // bb6[1]: scope 2 at $DIR/unreachable_asm_2.rs:22:9: 22:10
--         StorageLive(_9);                 // bb6[2]: scope 2 at $DIR/unreachable_asm_2.rs:24:9: 24:21
--         unreachable;                     // bb6[3]: scope 2 at $DIR/unreachable_asm_2.rs:24:15: 24:17
-+         unreachable;                     // bb5[6]: scope 2 at $DIR/unreachable_asm_2.rs:14:9: 22:10
+-         StorageDead(_6);                 // scope 2 at $DIR/unreachable_asm_2.rs:22:9: 22:10
+-         StorageDead(_5);                 // scope 2 at $DIR/unreachable_asm_2.rs:22:9: 22:10
+-         StorageLive(_9);                 // scope 2 at $DIR/unreachable_asm_2.rs:24:9: 24:21
+-         unreachable;                     // scope 2 at $DIR/unreachable_asm_2.rs:24:15: 24:17
++         unreachable;                     // scope 2 at $DIR/unreachable_asm_2.rs:14:9: 22:10
       }
   }
   
diff --git a/src/test/mir-opt/unreachable_diverging/rustc.main.UnreachablePropagation.diff b/src/test/mir-opt/unreachable_diverging/rustc.main.UnreachablePropagation.diff
index 2fe0c8dc1e7..ff23baf0b4e 100644
--- a/src/test/mir-opt/unreachable_diverging/rustc.main.UnreachablePropagation.diff
+++ b/src/test/mir-opt/unreachable_diverging/rustc.main.UnreachablePropagation.diff
@@ -18,16 +18,16 @@
       }
   
       bb0: {
-          StorageLive(_1);                 // bb0[0]: scope 0 at $DIR/unreachable_diverging.rs:13:9: 13:10
-          _1 = const true;                 // bb0[1]: scope 0 at $DIR/unreachable_diverging.rs:13:13: 13:17
+          StorageLive(_1);                 // scope 0 at $DIR/unreachable_diverging.rs:13:9: 13:10
+          _1 = const true;                 // scope 0 at $DIR/unreachable_diverging.rs:13:13: 13:17
                                            // ty::Const
                                            // + ty: bool
                                            // + val: Value(Scalar(0x01))
                                            // mir::Constant
                                            // + span: $DIR/unreachable_diverging.rs:13:13: 13:17
                                            // + literal: Const { ty: bool, val: Value(Scalar(0x01)) }
-          StorageLive(_2);                 // bb0[2]: scope 1 at $DIR/unreachable_diverging.rs:14:25: 14:32
-          _2 = const empty() -> bb1;       // bb0[3]: scope 1 at $DIR/unreachable_diverging.rs:14:25: 14:32
+          StorageLive(_2);                 // scope 1 at $DIR/unreachable_diverging.rs:14:25: 14:32
+          _2 = const empty() -> bb1;       // scope 1 at $DIR/unreachable_diverging.rs:14:25: 14:32
                                            // ty::Const
                                            // + ty: fn() -> std::option::Option<Empty> {empty}
                                            // + val: Value(Scalar(<ZST>))
@@ -37,47 +37,47 @@
       }
   
       bb1: {
-          _3 = discriminant(_2);           // bb1[0]: scope 1 at $DIR/unreachable_diverging.rs:14:12: 14:22
-          switchInt(move _3) -> [1isize: bb3, otherwise: bb2]; // bb1[1]: scope 1 at $DIR/unreachable_diverging.rs:14:12: 14:22
+          _3 = discriminant(_2);           // scope 1 at $DIR/unreachable_diverging.rs:14:12: 14:22
+          switchInt(move _3) -> [1isize: bb3, otherwise: bb2]; // scope 1 at $DIR/unreachable_diverging.rs:14:12: 14:22
       }
   
       bb2: {
-          _0 = const ();                   // bb2[0]: scope 1 at $DIR/unreachable_diverging.rs:14:5: 19:6
+          _0 = const ();                   // scope 1 at $DIR/unreachable_diverging.rs:14:5: 19:6
                                            // ty::Const
                                            // + ty: ()
                                            // + val: Value(Scalar(<ZST>))
                                            // mir::Constant
                                            // + span: $DIR/unreachable_diverging.rs:14:5: 19:6
                                            // + literal: Const { ty: (), val: Value(Scalar(<ZST>)) }
-          StorageDead(_1);                 // bb2[1]: scope 0 at $DIR/unreachable_diverging.rs:20:1: 20:2
-          StorageDead(_2);                 // bb2[2]: scope 0 at $DIR/unreachable_diverging.rs:20:1: 20:2
-          return;                          // bb2[3]: scope 0 at $DIR/unreachable_diverging.rs:20:2: 20:2
+          StorageDead(_1);                 // scope 0 at $DIR/unreachable_diverging.rs:20:1: 20:2
+          StorageDead(_2);                 // scope 0 at $DIR/unreachable_diverging.rs:20:1: 20:2
+          return;                          // scope 0 at $DIR/unreachable_diverging.rs:20:2: 20:2
       }
   
       bb3: {
-          StorageLive(_4);                 // bb3[0]: scope 1 at $DIR/unreachable_diverging.rs:14:17: 14:21
-          _4 = move ((_2 as Some).0: Empty); // bb3[1]: scope 1 at $DIR/unreachable_diverging.rs:14:17: 14:21
-          StorageLive(_5);                 // bb3[2]: scope 2 at $DIR/unreachable_diverging.rs:15:9: 17:10
-          StorageLive(_6);                 // bb3[3]: scope 2 at $DIR/unreachable_diverging.rs:15:12: 15:13
-          _6 = _1;                         // bb3[4]: scope 2 at $DIR/unreachable_diverging.rs:15:12: 15:13
--         switchInt(_6) -> [false: bb4, otherwise: bb5]; // bb3[5]: scope 2 at $DIR/unreachable_diverging.rs:15:9: 17:10
-+         goto -> bb4;                     // bb3[5]: scope 2 at $DIR/unreachable_diverging.rs:15:9: 17:10
+          StorageLive(_4);                 // scope 1 at $DIR/unreachable_diverging.rs:14:17: 14:21
+          _4 = move ((_2 as Some).0: Empty); // scope 1 at $DIR/unreachable_diverging.rs:14:17: 14:21
+          StorageLive(_5);                 // scope 2 at $DIR/unreachable_diverging.rs:15:9: 17:10
+          StorageLive(_6);                 // scope 2 at $DIR/unreachable_diverging.rs:15:12: 15:13
+          _6 = _1;                         // scope 2 at $DIR/unreachable_diverging.rs:15:12: 15:13
+-         switchInt(_6) -> [false: bb4, otherwise: bb5]; // scope 2 at $DIR/unreachable_diverging.rs:15:9: 17:10
++         goto -> bb4;                     // scope 2 at $DIR/unreachable_diverging.rs:15:9: 17:10
       }
   
       bb4: {
--         _5 = const ();                   // bb4[0]: scope 2 at $DIR/unreachable_diverging.rs:15:9: 17:10
-+         _5 = const loop_forever() -> bb5; // bb4[0]: scope 2 at $DIR/unreachable_diverging.rs:16:13: 16:27
+-         _5 = const ();                   // scope 2 at $DIR/unreachable_diverging.rs:15:9: 17:10
++         _5 = const loop_forever() -> bb5; // scope 2 at $DIR/unreachable_diverging.rs:16:13: 16:27
                                            // ty::Const
 -                                          // + ty: ()
 -                                          // + val: Value(Scalar(<ZST>))
 -                                          // mir::Constant
 -                                          // + span: $DIR/unreachable_diverging.rs:15:9: 17:10
 -                                          // + literal: Const { ty: (), val: Value(Scalar(<ZST>)) }
--         goto -> bb6;                     // bb4[1]: scope 2 at $DIR/unreachable_diverging.rs:15:9: 17:10
+-         goto -> bb6;                     // scope 2 at $DIR/unreachable_diverging.rs:15:9: 17:10
 -     }
 - 
 -     bb5: {
--         _5 = const loop_forever() -> bb6; // bb5[0]: scope 2 at $DIR/unreachable_diverging.rs:16:13: 16:27
+-         _5 = const loop_forever() -> bb6; // scope 2 at $DIR/unreachable_diverging.rs:16:13: 16:27
 -                                          // ty::Const
                                            // + ty: fn() {loop_forever}
                                            // + val: Value(Scalar(<ZST>))
@@ -87,15 +87,11 @@
       }
   
 -     bb6: {
--         StorageDead(_6);                 // bb6[0]: scope 2 at $DIR/unreachable_diverging.rs:17:9: 17:10
--         StorageDead(_5);                 // bb6[1]: scope 2 at $DIR/unreachable_diverging.rs:17:9: 17:10
--         StorageLive(_7);                 // bb6[2]: scope 2 at $DIR/unreachable_diverging.rs:18:9: 18:22
--         unreachable;                     // bb6[3]: scope 2 at $DIR/unreachable_diverging.rs:18:15: 18:19
 +     bb5: {
-+         StorageDead(_6);                 // bb5[0]: scope 2 at $DIR/unreachable_diverging.rs:17:9: 17:10
-+         StorageDead(_5);                 // bb5[1]: scope 2 at $DIR/unreachable_diverging.rs:17:9: 17:10
-+         StorageLive(_7);                 // bb5[2]: scope 2 at $DIR/unreachable_diverging.rs:18:9: 18:22
-+         unreachable;                     // bb5[3]: scope 2 at $DIR/unreachable_diverging.rs:18:15: 18:19
+          StorageDead(_6);                 // scope 2 at $DIR/unreachable_diverging.rs:17:9: 17:10
+          StorageDead(_5);                 // scope 2 at $DIR/unreachable_diverging.rs:17:9: 17:10
+          StorageLive(_7);                 // scope 2 at $DIR/unreachable_diverging.rs:18:9: 18:22
+          unreachable;                     // scope 2 at $DIR/unreachable_diverging.rs:18:15: 18:19
       }
   }
   
diff --git a/src/test/mir-opt/unusual-item-types/32bit/rustc.E-V-{{constant}}.mir_map.0.mir b/src/test/mir-opt/unusual-item-types/32bit/rustc.E-V-{{constant}}.mir_map.0.mir
index 3dc8cea1fe8..c800ccb1ae5 100644
--- a/src/test/mir-opt/unusual-item-types/32bit/rustc.E-V-{{constant}}.mir_map.0.mir
+++ b/src/test/mir-opt/unusual-item-types/32bit/rustc.E-V-{{constant}}.mir_map.0.mir
@@ -4,17 +4,17 @@ E::V::{{constant}}#0: isize = {
     let mut _0: isize;                   // return place in scope 0 at $DIR/unusual-item-types.rs:22:9: 22:10
 
     bb0: {
-        _0 = const 5isize;               // bb0[0]: scope 0 at $DIR/unusual-item-types.rs:22:9: 22:10
+        _0 = const 5isize;               // scope 0 at $DIR/unusual-item-types.rs:22:9: 22:10
                                          // ty::Const
                                          // + ty: isize
                                          // + val: Value(Scalar(0x00000005))
                                          // mir::Constant
                                          // + span: $DIR/unusual-item-types.rs:22:9: 22:10
                                          // + literal: Const { ty: isize, val: Value(Scalar(0x00000005)) }
-        return;                          // bb0[1]: scope 0 at $DIR/unusual-item-types.rs:22:9: 22:10
+        return;                          // scope 0 at $DIR/unusual-item-types.rs:22:9: 22:10
     }
 
     bb1 (cleanup): {
-        resume;                          // bb1[0]: scope 0 at $DIR/unusual-item-types.rs:22:9: 22:10
+        resume;                          // scope 0 at $DIR/unusual-item-types.rs:22:9: 22:10
     }
 }
diff --git a/src/test/mir-opt/unusual-item-types/32bit/rustc.Test-X-{{constructor}}.mir_map.0.mir b/src/test/mir-opt/unusual-item-types/32bit/rustc.Test-X-{{constructor}}.mir_map.0.mir
index d6ce06246a1..832f18e14c2 100644
--- a/src/test/mir-opt/unusual-item-types/32bit/rustc.Test-X-{{constructor}}.mir_map.0.mir
+++ b/src/test/mir-opt/unusual-item-types/32bit/rustc.Test-X-{{constructor}}.mir_map.0.mir
@@ -4,8 +4,8 @@ fn Test::X(_1: usize) -> Test {
     let mut _0: Test;                    // return place in scope 0 at $DIR/unusual-item-types.rs:16:5: 16:13
 
     bb0: {
-        ((_0 as X).0: usize) = move _1;  // bb0[0]: scope 0 at $DIR/unusual-item-types.rs:16:5: 16:13
-        discriminant(_0) = 0;            // bb0[1]: scope 0 at $DIR/unusual-item-types.rs:16:5: 16:13
-        return;                          // bb0[2]: scope 0 at $DIR/unusual-item-types.rs:16:5: 16:13
+        ((_0 as X).0: usize) = move _1;  // scope 0 at $DIR/unusual-item-types.rs:16:5: 16:13
+        discriminant(_0) = 0;            // scope 0 at $DIR/unusual-item-types.rs:16:5: 16:13
+        return;                          // scope 0 at $DIR/unusual-item-types.rs:16:5: 16:13
     }
 }
diff --git a/src/test/mir-opt/unusual-item-types/32bit/rustc.ptr-drop_in_place.std__vec__Vec_i32_.AddMovesForPackedDrops.before.mir b/src/test/mir-opt/unusual-item-types/32bit/rustc.ptr-drop_in_place.std__vec__Vec_i32_.AddMovesForPackedDrops.before.mir
index b78480e774c..28f14399a63 100644
--- a/src/test/mir-opt/unusual-item-types/32bit/rustc.ptr-drop_in_place.std__vec__Vec_i32_.AddMovesForPackedDrops.before.mir
+++ b/src/test/mir-opt/unusual-item-types/32bit/rustc.ptr-drop_in_place.std__vec__Vec_i32_.AddMovesForPackedDrops.before.mir
@@ -6,36 +6,36 @@ fn std::intrinsics::drop_in_place(_1: *mut std::vec::Vec<i32>) -> () {
     let mut _3: ();                      // in scope 0 at $SRC_DIR/libcore/ptr/mod.rs:LL:COL
 
     bb0: {
-        goto -> bb7;                     // bb0[0]: scope 0 at $SRC_DIR/libcore/ptr/mod.rs:LL:COL
+        goto -> bb7;                     // scope 0 at $SRC_DIR/libcore/ptr/mod.rs:LL:COL
     }
 
     bb1: {
-        return;                          // bb1[0]: scope 0 at $SRC_DIR/libcore/ptr/mod.rs:LL:COL
+        return;                          // scope 0 at $SRC_DIR/libcore/ptr/mod.rs:LL:COL
     }
 
     bb2 (cleanup): {
-        resume;                          // bb2[0]: scope 0 at $SRC_DIR/libcore/ptr/mod.rs:LL:COL
+        resume;                          // scope 0 at $SRC_DIR/libcore/ptr/mod.rs:LL:COL
     }
 
     bb3: {
-        goto -> bb1;                     // bb3[0]: scope 0 at $SRC_DIR/libcore/ptr/mod.rs:LL:COL
+        goto -> bb1;                     // scope 0 at $SRC_DIR/libcore/ptr/mod.rs:LL:COL
     }
 
     bb4 (cleanup): {
-        goto -> bb2;                     // bb4[0]: scope 0 at $SRC_DIR/libcore/ptr/mod.rs:LL:COL
+        goto -> bb2;                     // scope 0 at $SRC_DIR/libcore/ptr/mod.rs:LL:COL
     }
 
     bb5 (cleanup): {
-        drop(((*_1).0: alloc::raw_vec::RawVec<i32>)) -> bb4; // bb5[0]: scope 0 at $SRC_DIR/libcore/ptr/mod.rs:LL:COL
+        drop(((*_1).0: alloc::raw_vec::RawVec<i32>)) -> bb4; // scope 0 at $SRC_DIR/libcore/ptr/mod.rs:LL:COL
     }
 
     bb6: {
-        drop(((*_1).0: alloc::raw_vec::RawVec<i32>)) -> [return: bb3, unwind: bb4]; // bb6[0]: scope 0 at $SRC_DIR/libcore/ptr/mod.rs:LL:COL
+        drop(((*_1).0: alloc::raw_vec::RawVec<i32>)) -> [return: bb3, unwind: bb4]; // scope 0 at $SRC_DIR/libcore/ptr/mod.rs:LL:COL
     }
 
     bb7: {
-        _2 = &mut (*_1);                 // bb7[0]: scope 0 at $SRC_DIR/libcore/ptr/mod.rs:LL:COL
-        _3 = const <std::vec::Vec<i32> as std::ops::Drop>::drop(move _2) -> [return: bb6, unwind: bb5]; // bb7[1]: scope 0 at $SRC_DIR/libcore/ptr/mod.rs:LL:COL
+        _2 = &mut (*_1);                 // scope 0 at $SRC_DIR/libcore/ptr/mod.rs:LL:COL
+        _3 = const <std::vec::Vec<i32> as std::ops::Drop>::drop(move _2) -> [return: bb6, unwind: bb5]; // scope 0 at $SRC_DIR/libcore/ptr/mod.rs:LL:COL
                                          // ty::Const
                                          // + ty: for<'r> fn(&'r mut std::vec::Vec<i32>) {<std::vec::Vec<i32> as std::ops::Drop>::drop}
                                          // + val: Value(Scalar(<ZST>))
diff --git a/src/test/mir-opt/unusual-item-types/32bit/rustc.{{impl}}-ASSOCIATED_CONSTANT.mir_map.0.mir b/src/test/mir-opt/unusual-item-types/32bit/rustc.{{impl}}-ASSOCIATED_CONSTANT.mir_map.0.mir
index 9f65819bcf8..f4a5cc0b327 100644
--- a/src/test/mir-opt/unusual-item-types/32bit/rustc.{{impl}}-ASSOCIATED_CONSTANT.mir_map.0.mir
+++ b/src/test/mir-opt/unusual-item-types/32bit/rustc.{{impl}}-ASSOCIATED_CONSTANT.mir_map.0.mir
@@ -4,17 +4,17 @@ const <impl at $DIR/unusual-item-types.rs:9:1: 11:2>::ASSOCIATED_CONSTANT: i32 =
     let mut _0: i32;                     // return place in scope 0 at $DIR/unusual-item-types.rs:10:32: 10:35
 
     bb0: {
-        _0 = const 2i32;                 // bb0[0]: scope 0 at $DIR/unusual-item-types.rs:10:38: 10:39
+        _0 = const 2i32;                 // scope 0 at $DIR/unusual-item-types.rs:10:38: 10:39
                                          // ty::Const
                                          // + ty: i32
                                          // + val: Value(Scalar(0x00000002))
                                          // mir::Constant
                                          // + span: $DIR/unusual-item-types.rs:10:38: 10:39
                                          // + literal: Const { ty: i32, val: Value(Scalar(0x00000002)) }
-        return;                          // bb0[1]: scope 0 at $DIR/unusual-item-types.rs:10:5: 10:40
+        return;                          // scope 0 at $DIR/unusual-item-types.rs:10:5: 10:40
     }
 
     bb1 (cleanup): {
-        resume;                          // bb1[0]: scope 0 at $DIR/unusual-item-types.rs:10:5: 10:40
+        resume;                          // scope 0 at $DIR/unusual-item-types.rs:10:5: 10:40
     }
 }
diff --git a/src/test/mir-opt/unusual-item-types/64bit/rustc.E-V-{{constant}}.mir_map.0.mir b/src/test/mir-opt/unusual-item-types/64bit/rustc.E-V-{{constant}}.mir_map.0.mir
index 8434ff47f1c..e635cd2b01b 100644
--- a/src/test/mir-opt/unusual-item-types/64bit/rustc.E-V-{{constant}}.mir_map.0.mir
+++ b/src/test/mir-opt/unusual-item-types/64bit/rustc.E-V-{{constant}}.mir_map.0.mir
@@ -4,17 +4,17 @@ E::V::{{constant}}#0: isize = {
     let mut _0: isize;                   // return place in scope 0 at $DIR/unusual-item-types.rs:22:9: 22:10
 
     bb0: {
-        _0 = const 5isize;               // bb0[0]: scope 0 at $DIR/unusual-item-types.rs:22:9: 22:10
+        _0 = const 5isize;               // scope 0 at $DIR/unusual-item-types.rs:22:9: 22:10
                                          // ty::Const
                                          // + ty: isize
                                          // + val: Value(Scalar(0x0000000000000005))
                                          // mir::Constant
                                          // + span: $DIR/unusual-item-types.rs:22:9: 22:10
                                          // + literal: Const { ty: isize, val: Value(Scalar(0x0000000000000005)) }
-        return;                          // bb0[1]: scope 0 at $DIR/unusual-item-types.rs:22:9: 22:10
+        return;                          // scope 0 at $DIR/unusual-item-types.rs:22:9: 22:10
     }
 
     bb1 (cleanup): {
-        resume;                          // bb1[0]: scope 0 at $DIR/unusual-item-types.rs:22:9: 22:10
+        resume;                          // scope 0 at $DIR/unusual-item-types.rs:22:9: 22:10
     }
 }
diff --git a/src/test/mir-opt/unusual-item-types/64bit/rustc.Test-X-{{constructor}}.mir_map.0.mir b/src/test/mir-opt/unusual-item-types/64bit/rustc.Test-X-{{constructor}}.mir_map.0.mir
index d6ce06246a1..832f18e14c2 100644
--- a/src/test/mir-opt/unusual-item-types/64bit/rustc.Test-X-{{constructor}}.mir_map.0.mir
+++ b/src/test/mir-opt/unusual-item-types/64bit/rustc.Test-X-{{constructor}}.mir_map.0.mir
@@ -4,8 +4,8 @@ fn Test::X(_1: usize) -> Test {
     let mut _0: Test;                    // return place in scope 0 at $DIR/unusual-item-types.rs:16:5: 16:13
 
     bb0: {
-        ((_0 as X).0: usize) = move _1;  // bb0[0]: scope 0 at $DIR/unusual-item-types.rs:16:5: 16:13
-        discriminant(_0) = 0;            // bb0[1]: scope 0 at $DIR/unusual-item-types.rs:16:5: 16:13
-        return;                          // bb0[2]: scope 0 at $DIR/unusual-item-types.rs:16:5: 16:13
+        ((_0 as X).0: usize) = move _1;  // scope 0 at $DIR/unusual-item-types.rs:16:5: 16:13
+        discriminant(_0) = 0;            // scope 0 at $DIR/unusual-item-types.rs:16:5: 16:13
+        return;                          // scope 0 at $DIR/unusual-item-types.rs:16:5: 16:13
     }
 }
diff --git a/src/test/mir-opt/unusual-item-types/64bit/rustc.ptr-drop_in_place.std__vec__Vec_i32_.AddMovesForPackedDrops.before.mir b/src/test/mir-opt/unusual-item-types/64bit/rustc.ptr-drop_in_place.std__vec__Vec_i32_.AddMovesForPackedDrops.before.mir
index b78480e774c..28f14399a63 100644
--- a/src/test/mir-opt/unusual-item-types/64bit/rustc.ptr-drop_in_place.std__vec__Vec_i32_.AddMovesForPackedDrops.before.mir
+++ b/src/test/mir-opt/unusual-item-types/64bit/rustc.ptr-drop_in_place.std__vec__Vec_i32_.AddMovesForPackedDrops.before.mir
@@ -6,36 +6,36 @@ fn std::intrinsics::drop_in_place(_1: *mut std::vec::Vec<i32>) -> () {
     let mut _3: ();                      // in scope 0 at $SRC_DIR/libcore/ptr/mod.rs:LL:COL
 
     bb0: {
-        goto -> bb7;                     // bb0[0]: scope 0 at $SRC_DIR/libcore/ptr/mod.rs:LL:COL
+        goto -> bb7;                     // scope 0 at $SRC_DIR/libcore/ptr/mod.rs:LL:COL
     }
 
     bb1: {
-        return;                          // bb1[0]: scope 0 at $SRC_DIR/libcore/ptr/mod.rs:LL:COL
+        return;                          // scope 0 at $SRC_DIR/libcore/ptr/mod.rs:LL:COL
     }
 
     bb2 (cleanup): {
-        resume;                          // bb2[0]: scope 0 at $SRC_DIR/libcore/ptr/mod.rs:LL:COL
+        resume;                          // scope 0 at $SRC_DIR/libcore/ptr/mod.rs:LL:COL
     }
 
     bb3: {
-        goto -> bb1;                     // bb3[0]: scope 0 at $SRC_DIR/libcore/ptr/mod.rs:LL:COL
+        goto -> bb1;                     // scope 0 at $SRC_DIR/libcore/ptr/mod.rs:LL:COL
     }
 
     bb4 (cleanup): {
-        goto -> bb2;                     // bb4[0]: scope 0 at $SRC_DIR/libcore/ptr/mod.rs:LL:COL
+        goto -> bb2;                     // scope 0 at $SRC_DIR/libcore/ptr/mod.rs:LL:COL
     }
 
     bb5 (cleanup): {
-        drop(((*_1).0: alloc::raw_vec::RawVec<i32>)) -> bb4; // bb5[0]: scope 0 at $SRC_DIR/libcore/ptr/mod.rs:LL:COL
+        drop(((*_1).0: alloc::raw_vec::RawVec<i32>)) -> bb4; // scope 0 at $SRC_DIR/libcore/ptr/mod.rs:LL:COL
     }
 
     bb6: {
-        drop(((*_1).0: alloc::raw_vec::RawVec<i32>)) -> [return: bb3, unwind: bb4]; // bb6[0]: scope 0 at $SRC_DIR/libcore/ptr/mod.rs:LL:COL
+        drop(((*_1).0: alloc::raw_vec::RawVec<i32>)) -> [return: bb3, unwind: bb4]; // scope 0 at $SRC_DIR/libcore/ptr/mod.rs:LL:COL
     }
 
     bb7: {
-        _2 = &mut (*_1);                 // bb7[0]: scope 0 at $SRC_DIR/libcore/ptr/mod.rs:LL:COL
-        _3 = const <std::vec::Vec<i32> as std::ops::Drop>::drop(move _2) -> [return: bb6, unwind: bb5]; // bb7[1]: scope 0 at $SRC_DIR/libcore/ptr/mod.rs:LL:COL
+        _2 = &mut (*_1);                 // scope 0 at $SRC_DIR/libcore/ptr/mod.rs:LL:COL
+        _3 = const <std::vec::Vec<i32> as std::ops::Drop>::drop(move _2) -> [return: bb6, unwind: bb5]; // scope 0 at $SRC_DIR/libcore/ptr/mod.rs:LL:COL
                                          // ty::Const
                                          // + ty: for<'r> fn(&'r mut std::vec::Vec<i32>) {<std::vec::Vec<i32> as std::ops::Drop>::drop}
                                          // + val: Value(Scalar(<ZST>))
diff --git a/src/test/mir-opt/unusual-item-types/64bit/rustc.{{impl}}-ASSOCIATED_CONSTANT.mir_map.0.mir b/src/test/mir-opt/unusual-item-types/64bit/rustc.{{impl}}-ASSOCIATED_CONSTANT.mir_map.0.mir
index 9f65819bcf8..f4a5cc0b327 100644
--- a/src/test/mir-opt/unusual-item-types/64bit/rustc.{{impl}}-ASSOCIATED_CONSTANT.mir_map.0.mir
+++ b/src/test/mir-opt/unusual-item-types/64bit/rustc.{{impl}}-ASSOCIATED_CONSTANT.mir_map.0.mir
@@ -4,17 +4,17 @@ const <impl at $DIR/unusual-item-types.rs:9:1: 11:2>::ASSOCIATED_CONSTANT: i32 =
     let mut _0: i32;                     // return place in scope 0 at $DIR/unusual-item-types.rs:10:32: 10:35
 
     bb0: {
-        _0 = const 2i32;                 // bb0[0]: scope 0 at $DIR/unusual-item-types.rs:10:38: 10:39
+        _0 = const 2i32;                 // scope 0 at $DIR/unusual-item-types.rs:10:38: 10:39
                                          // ty::Const
                                          // + ty: i32
                                          // + val: Value(Scalar(0x00000002))
                                          // mir::Constant
                                          // + span: $DIR/unusual-item-types.rs:10:38: 10:39
                                          // + literal: Const { ty: i32, val: Value(Scalar(0x00000002)) }
-        return;                          // bb0[1]: scope 0 at $DIR/unusual-item-types.rs:10:5: 10:40
+        return;                          // scope 0 at $DIR/unusual-item-types.rs:10:5: 10:40
     }
 
     bb1 (cleanup): {
-        resume;                          // bb1[0]: scope 0 at $DIR/unusual-item-types.rs:10:5: 10:40
+        resume;                          // scope 0 at $DIR/unusual-item-types.rs:10:5: 10:40
     }
 }
diff --git a/src/test/mir-opt/while-storage/rustc.while_loop.PreCodegen.after.mir b/src/test/mir-opt/while-storage/rustc.while_loop.PreCodegen.after.mir
index 5d9c1f6b230..3ddf82c2fb2 100644
--- a/src/test/mir-opt/while-storage/rustc.while_loop.PreCodegen.after.mir
+++ b/src/test/mir-opt/while-storage/rustc.while_loop.PreCodegen.after.mir
@@ -9,10 +9,10 @@ fn while_loop(_1: bool) -> () {
     let mut _5: bool;                    // in scope 0 at $DIR/while-storage.rs:11:21: 11:22
 
     bb0: {
-        StorageLive(_2);                 // bb0[0]: scope 0 at $DIR/while-storage.rs:10:11: 10:22
-        StorageLive(_3);                 // bb0[1]: scope 0 at $DIR/while-storage.rs:10:20: 10:21
-        _3 = _1;                         // bb0[2]: scope 0 at $DIR/while-storage.rs:10:20: 10:21
-        _2 = const get_bool(move _3) -> bb1; // bb0[3]: scope 0 at $DIR/while-storage.rs:10:11: 10:22
+        StorageLive(_2);                 // scope 0 at $DIR/while-storage.rs:10:11: 10:22
+        StorageLive(_3);                 // scope 0 at $DIR/while-storage.rs:10:20: 10:21
+        _3 = _1;                         // scope 0 at $DIR/while-storage.rs:10:20: 10:21
+        _2 = const get_bool(move _3) -> bb1; // scope 0 at $DIR/while-storage.rs:10:11: 10:22
                                          // ty::Const
                                          // + ty: fn(bool) -> bool {get_bool}
                                          // + val: Value(Scalar(<ZST>))
@@ -22,26 +22,26 @@ fn while_loop(_1: bool) -> () {
     }
 
     bb1: {
-        StorageDead(_3);                 // bb1[0]: scope 0 at $DIR/while-storage.rs:10:21: 10:22
-        switchInt(_2) -> [false: bb2, otherwise: bb3]; // bb1[1]: scope 0 at $DIR/while-storage.rs:10:5: 14:6
+        StorageDead(_3);                 // scope 0 at $DIR/while-storage.rs:10:21: 10:22
+        switchInt(_2) -> [false: bb2, otherwise: bb3]; // scope 0 at $DIR/while-storage.rs:10:5: 14:6
     }
 
     bb2: {
-        _0 = const ();                   // bb2[0]: scope 0 at $DIR/while-storage.rs:10:5: 14:6
+        _0 = const ();                   // scope 0 at $DIR/while-storage.rs:10:5: 14:6
                                          // ty::Const
                                          // + ty: ()
                                          // + val: Value(Scalar(<ZST>))
                                          // mir::Constant
                                          // + span: $DIR/while-storage.rs:10:5: 14:6
                                          // + literal: Const { ty: (), val: Value(Scalar(<ZST>)) }
-        goto -> bb7;                     // bb2[1]: scope 0 at $DIR/while-storage.rs:10:5: 14:6
+        goto -> bb7;                     // scope 0 at $DIR/while-storage.rs:10:5: 14:6
     }
 
     bb3: {
-        StorageLive(_4);                 // bb3[0]: scope 0 at $DIR/while-storage.rs:11:12: 11:23
-        StorageLive(_5);                 // bb3[1]: scope 0 at $DIR/while-storage.rs:11:21: 11:22
-        _5 = _1;                         // bb3[2]: scope 0 at $DIR/while-storage.rs:11:21: 11:22
-        _4 = const get_bool(move _5) -> bb4; // bb3[3]: scope 0 at $DIR/while-storage.rs:11:12: 11:23
+        StorageLive(_4);                 // scope 0 at $DIR/while-storage.rs:11:12: 11:23
+        StorageLive(_5);                 // scope 0 at $DIR/while-storage.rs:11:21: 11:22
+        _5 = _1;                         // scope 0 at $DIR/while-storage.rs:11:21: 11:22
+        _4 = const get_bool(move _5) -> bb4; // scope 0 at $DIR/while-storage.rs:11:12: 11:23
                                          // ty::Const
                                          // + ty: fn(bool) -> bool {get_bool}
                                          // + val: Value(Scalar(<ZST>))
@@ -51,30 +51,30 @@ fn while_loop(_1: bool) -> () {
     }
 
     bb4: {
-        StorageDead(_5);                 // bb4[0]: scope 0 at $DIR/while-storage.rs:11:22: 11:23
-        switchInt(_4) -> [false: bb5, otherwise: bb6]; // bb4[1]: scope 0 at $DIR/while-storage.rs:11:9: 13:10
+        StorageDead(_5);                 // scope 0 at $DIR/while-storage.rs:11:22: 11:23
+        switchInt(_4) -> [false: bb5, otherwise: bb6]; // scope 0 at $DIR/while-storage.rs:11:9: 13:10
     }
 
     bb5: {
-        StorageDead(_4);                 // bb5[0]: scope 0 at $DIR/while-storage.rs:14:5: 14:6
-        StorageDead(_2);                 // bb5[1]: scope 0 at $DIR/while-storage.rs:14:5: 14:6
-        goto -> bb0;                     // bb5[2]: scope 0 at $DIR/while-storage.rs:10:5: 14:6
+        StorageDead(_4);                 // scope 0 at $DIR/while-storage.rs:14:5: 14:6
+        StorageDead(_2);                 // scope 0 at $DIR/while-storage.rs:14:5: 14:6
+        goto -> bb0;                     // scope 0 at $DIR/while-storage.rs:10:5: 14:6
     }
 
     bb6: {
-        _0 = const ();                   // bb6[0]: scope 0 at $DIR/while-storage.rs:12:13: 12:18
+        _0 = const ();                   // scope 0 at $DIR/while-storage.rs:12:13: 12:18
                                          // ty::Const
                                          // + ty: ()
                                          // + val: Value(Scalar(<ZST>))
                                          // mir::Constant
                                          // + span: $DIR/while-storage.rs:12:13: 12:18
                                          // + literal: Const { ty: (), val: Value(Scalar(<ZST>)) }
-        StorageDead(_4);                 // bb6[1]: scope 0 at $DIR/while-storage.rs:14:5: 14:6
-        goto -> bb7;                     // bb6[2]: scope 0 at $DIR/while-storage.rs:12:13: 12:18
+        StorageDead(_4);                 // scope 0 at $DIR/while-storage.rs:14:5: 14:6
+        goto -> bb7;                     // scope 0 at $DIR/while-storage.rs:12:13: 12:18
     }
 
     bb7: {
-        StorageDead(_2);                 // bb7[0]: scope 0 at $DIR/while-storage.rs:14:5: 14:6
-        return;                          // bb7[1]: scope 0 at $DIR/while-storage.rs:15:2: 15:2
+        StorageDead(_2);                 // scope 0 at $DIR/while-storage.rs:14:5: 14:6
+        return;                          // scope 0 at $DIR/while-storage.rs:15:2: 15:2
     }
 }