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| author | Simon Vandel Sillesen <simon.vandel@gmail.com> | 2020-12-29 23:32:31 +0100 |
|---|---|---|
| committer | Erik Desjardins <erikdesjardins@users.noreply.github.com> | 2021-03-13 17:58:11 -0500 |
| commit | 4e901be57d23d1da21ad2e516a831ad3c16bfd85 (patch) | |
| tree | 378761c46c828149cca73d19f367a5abdd81ac56 | |
| parent | e7e1dc158c3de232750b568163f6941a184ee8be (diff) | |
| download | rust-4e901be57d23d1da21ad2e516a831ad3c16bfd85.tar.gz rust-4e901be57d23d1da21ad2e516a831ad3c16bfd85.zip | |
Extend SimplifyLocals to remove ZST writes
34 files changed, 40 insertions, 40 deletions
diff --git a/compiler/rustc_mir/src/transform/simplify.rs b/compiler/rustc_mir/src/transform/simplify.rs index a5764d9bf4e..44e53cfa659 100644 --- a/compiler/rustc_mir/src/transform/simplify.rs +++ b/compiler/rustc_mir/src/transform/simplify.rs @@ -333,7 +333,7 @@ pub fn simplify_locals<'tcx>(body: &mut Body<'tcx>, tcx: TyCtxt<'tcx>) { // count. For example, if we removed `_2 = discriminant(_1)`, then we'll subtract one from // `use_counts[_1]`. That in turn might make `_1` unused, so we loop until we hit a // fixedpoint where there are no more unused locals. - remove_unused_definitions(&mut used_locals, body); + remove_unused_definitions(&mut used_locals, body, tcx); // Finally, we'll actually do the work of shrinking `body.local_decls` and remapping the `Local`s. let map = make_local_map(&mut body.local_decls, &used_locals); @@ -462,12 +462,22 @@ impl Visitor<'_> for UsedLocals { } /// Removes unused definitions. Updates the used locals to reflect the changes made. -fn remove_unused_definitions<'a, 'tcx>(used_locals: &'a mut UsedLocals, body: &mut Body<'tcx>) { +fn remove_unused_definitions<'a, 'tcx>( + used_locals: &'a mut UsedLocals, + body: &mut Body<'tcx>, + tcx: TyCtxt<'tcx>, +) { // The use counts are updated as we remove the statements. A local might become unused // during the retain operation, leading to a temporary inconsistency (storage statements or // definitions referencing the local might remain). For correctness it is crucial that this // computation reaches a fixed point. + let def_id = body.source.def_id(); + let is_static = tcx.is_static(def_id); + let param_env = tcx.param_env(def_id); + + let local_decls = body.local_decls.clone(); + let mut modified = true; while modified { modified = false; @@ -479,7 +489,21 @@ fn remove_unused_definitions<'a, 'tcx>(used_locals: &'a mut UsedLocals, body: &m StatementKind::StorageLive(local) | StatementKind::StorageDead(local) => { used_locals.is_used(*local) } - StatementKind::Assign(box (place, _)) => used_locals.is_used(place.local), + StatementKind::Assign(box (place, _)) => { + let used = used_locals.is_used(place.local); + let mut is_zst = false; + + // ZST locals can be removed + if used && !is_static { + let ty = local_decls[place.local].ty; + let param_env_and = param_env.and(ty); + if let Ok(layout) = tcx.layout_of(param_env_and) { + is_zst = layout.is_zst(); + } + } + + used && !is_zst + } StatementKind::SetDiscriminant { ref place, .. } => { used_locals.is_used(place.local) diff --git a/src/test/codegen/naked-functions.rs b/src/test/codegen/naked-functions.rs index 43a6be465bc..974f174de82 100644 --- a/src/test/codegen/naked-functions.rs +++ b/src/test/codegen/naked-functions.rs @@ -9,6 +9,7 @@ #[naked] pub fn naked_empty() { // CHECK-NEXT: {{.+}}: + // CHECK-NEXT: %0 = alloca {}, align 1 // CHECK-NEXT: ret void } @@ -18,6 +19,7 @@ pub fn naked_empty() { // CHECK-NEXT: define void @naked_with_args(i{{[0-9]+( %a)?}}) pub fn naked_with_args(a: isize) { // CHECK-NEXT: {{.+}}: + // CHECK-NEXT: %0 = alloca {}, align 1 // CHECK: ret void } diff --git a/src/test/mir-opt/const_prop/control_flow_simplification.hello.PreCodegen.before.mir b/src/test/mir-opt/const_prop/control_flow_simplification.hello.PreCodegen.before.mir index c2f75e5daee..30512d0bbe8 100644 --- a/src/test/mir-opt/const_prop/control_flow_simplification.hello.PreCodegen.before.mir +++ b/src/test/mir-opt/const_prop/control_flow_simplification.hello.PreCodegen.before.mir @@ -4,7 +4,6 @@ fn hello() -> () { let mut _0: (); // return place in scope 0 at $DIR/control-flow-simplification.rs:11:14: 11:14 bb0: { - _0 = const (); // scope 0 at $DIR/control-flow-simplification.rs:14:6: 14:6 return; // scope 0 at $DIR/control-flow-simplification.rs:15:2: 15:2 } } diff --git a/src/test/mir-opt/const_prop/optimizes_into_variable.main.SimplifyLocals.after.32bit.mir b/src/test/mir-opt/const_prop/optimizes_into_variable.main.SimplifyLocals.after.32bit.mir index a78a6341c29..c6f1d86ae3a 100644 --- a/src/test/mir-opt/const_prop/optimizes_into_variable.main.SimplifyLocals.after.32bit.mir +++ b/src/test/mir-opt/const_prop/optimizes_into_variable.main.SimplifyLocals.after.32bit.mir @@ -22,7 +22,6 @@ fn main() -> () { _2 = const 3_i32; // scope 1 at $DIR/optimizes_into_variable.rs:13:13: 13:34 StorageLive(_3); // scope 2 at $DIR/optimizes_into_variable.rs:14:9: 14:10 _3 = const 42_u32; // scope 2 at $DIR/optimizes_into_variable.rs:14:13: 14:38 - _0 = const (); // scope 0 at $DIR/optimizes_into_variable.rs:11:11: 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 diff --git a/src/test/mir-opt/const_prop/optimizes_into_variable.main.SimplifyLocals.after.64bit.mir b/src/test/mir-opt/const_prop/optimizes_into_variable.main.SimplifyLocals.after.64bit.mir index a78a6341c29..c6f1d86ae3a 100644 --- a/src/test/mir-opt/const_prop/optimizes_into_variable.main.SimplifyLocals.after.64bit.mir +++ b/src/test/mir-opt/const_prop/optimizes_into_variable.main.SimplifyLocals.after.64bit.mir @@ -22,7 +22,6 @@ fn main() -> () { _2 = const 3_i32; // scope 1 at $DIR/optimizes_into_variable.rs:13:13: 13:34 StorageLive(_3); // scope 2 at $DIR/optimizes_into_variable.rs:14:9: 14:10 _3 = const 42_u32; // scope 2 at $DIR/optimizes_into_variable.rs:14:13: 14:38 - _0 = const (); // scope 0 at $DIR/optimizes_into_variable.rs:11:11: 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 diff --git a/src/test/mir-opt/dest-prop/cycle.main.DestinationPropagation.diff b/src/test/mir-opt/dest-prop/cycle.main.DestinationPropagation.diff index 1fbda50f783..621a747e131 100644 --- a/src/test/mir-opt/dest-prop/cycle.main.DestinationPropagation.diff +++ b/src/test/mir-opt/dest-prop/cycle.main.DestinationPropagation.diff @@ -56,7 +56,6 @@ StorageLive(_6); // scope 3 at $DIR/cycle.rs:14:10: 14:11 - _6 = _1; // scope 3 at $DIR/cycle.rs:14:10: 14:11 + _6 = _4; // scope 3 at $DIR/cycle.rs:14:10: 14:11 - _5 = const (); // scope 4 at $DIR/cycle.rs:14:5: 14:12 StorageDead(_6); // scope 3 at $DIR/cycle.rs:14:11: 14:12 StorageDead(_5); // scope 3 at $DIR/cycle.rs:14:12: 14:13 _0 = const (); // scope 0 at $DIR/cycle.rs:8:11: 15:2 diff --git a/src/test/mir-opt/dest-prop/union.main.DestinationPropagation.diff b/src/test/mir-opt/dest-prop/union.main.DestinationPropagation.diff index 0ff3e4b2dcf..a3368dcfcc6 100644 --- a/src/test/mir-opt/dest-prop/union.main.DestinationPropagation.diff +++ b/src/test/mir-opt/dest-prop/union.main.DestinationPropagation.diff @@ -31,7 +31,6 @@ StorageLive(_3); // scope 1 at $DIR/union.rs:15:5: 15:27 StorageLive(_4); // scope 1 at $DIR/union.rs:15:10: 15:26 _4 = (_1.0: u32); // scope 2 at $DIR/union.rs:15:19: 15:24 - _3 = const (); // scope 3 at $DIR/union.rs:15:5: 15:27 StorageDead(_4); // scope 1 at $DIR/union.rs:15:26: 15:27 StorageDead(_3); // scope 1 at $DIR/union.rs:15:27: 15:28 _0 = const (); // scope 0 at $DIR/union.rs:8:11: 16:2 diff --git a/src/test/mir-opt/inline/inline_compatibility.inlined_no_sanitize.Inline.diff b/src/test/mir-opt/inline/inline_compatibility.inlined_no_sanitize.Inline.diff index c95cf476957..77eb326cd82 100644 --- a/src/test/mir-opt/inline/inline_compatibility.inlined_no_sanitize.Inline.diff +++ b/src/test/mir-opt/inline/inline_compatibility.inlined_no_sanitize.Inline.diff @@ -16,7 +16,6 @@ - } - - bb1: { -+ _1 = const (); // scope 1 at $DIR/inline-compatibility.rs:24:5: 24:18 StorageDead(_1); // scope 0 at $DIR/inline-compatibility.rs:24:18: 24:19 _0 = const (); // scope 0 at $DIR/inline-compatibility.rs:23:37: 25:2 return; // scope 0 at $DIR/inline-compatibility.rs:25:2: 25:2 diff --git a/src/test/mir-opt/inline/inline_compatibility.inlined_target_feature.Inline.diff b/src/test/mir-opt/inline/inline_compatibility.inlined_target_feature.Inline.diff index 2bb92834322..a32db48715c 100644 --- a/src/test/mir-opt/inline/inline_compatibility.inlined_target_feature.Inline.diff +++ b/src/test/mir-opt/inline/inline_compatibility.inlined_target_feature.Inline.diff @@ -16,7 +16,6 @@ - } - - bb1: { -+ _1 = const (); // scope 1 at $DIR/inline-compatibility.rs:13:5: 13:21 StorageDead(_1); // scope 0 at $DIR/inline-compatibility.rs:13:21: 13:22 _0 = const (); // scope 0 at $DIR/inline-compatibility.rs:12:40: 14:2 return; // scope 0 at $DIR/inline-compatibility.rs:14:2: 14:2 diff --git a/src/test/mir-opt/inline/inline_cycle.two.Inline.diff b/src/test/mir-opt/inline/inline_cycle.two.Inline.diff index b44baca9bf4..aaf65c5d0a5 100644 --- a/src/test/mir-opt/inline/inline_cycle.two.Inline.diff +++ b/src/test/mir-opt/inline/inline_cycle.two.Inline.diff @@ -37,7 +37,6 @@ + StorageDead(_5); // scope 1 at $DIR/inline-cycle.rs:49:5: 49:12 + StorageDead(_4); // scope 1 at $DIR/inline-cycle.rs:49:5: 49:12 + StorageDead(_3); // scope 1 at $DIR/inline-cycle.rs:49:5: 49:12 -+ _1 = const (); // scope 1 at $DIR/inline-cycle.rs:49:5: 49:12 + StorageDead(_2); // scope 0 at $DIR/inline-cycle.rs:49:5: 49:12 StorageDead(_1); // scope 0 at $DIR/inline-cycle.rs:49:12: 49:13 _0 = const (); // scope 0 at $DIR/inline-cycle.rs:48:10: 50:2 diff --git a/src/test/mir-opt/inline/inline_options.main.Inline.after.mir b/src/test/mir-opt/inline/inline_options.main.Inline.after.mir index 4cbdde2ba07..865cf25863f 100644 --- a/src/test/mir-opt/inline/inline_options.main.Inline.after.mir +++ b/src/test/mir-opt/inline/inline_options.main.Inline.after.mir @@ -48,7 +48,6 @@ fn main() -> () { bb4: { StorageDead(_5); // scope 1 at $DIR/inline-options.rs:10:5: 10:21 - _2 = const (); // scope 1 at $DIR/inline-options.rs:10:5: 10:21 StorageDead(_2); // scope 0 at $DIR/inline-options.rs:10:21: 10:22 _0 = const (); // scope 0 at $DIR/inline-options.rs:8:11: 11:2 return; // scope 0 at $DIR/inline-options.rs:11:2: 11:2 diff --git a/src/test/mir-opt/inline/issue_76997_inline_scopes_parenting.main.Inline.after.mir b/src/test/mir-opt/inline/issue_76997_inline_scopes_parenting.main.Inline.after.mir index 3d386e3b175..d62f78eaa32 100644 --- a/src/test/mir-opt/inline/issue_76997_inline_scopes_parenting.main.Inline.after.mir +++ b/src/test/mir-opt/inline/issue_76997_inline_scopes_parenting.main.Inline.after.mir @@ -28,8 +28,6 @@ fn main() -> () { StorageLive(_5); // scope 1 at $DIR/issue-76997-inline-scopes-parenting.rs:6:5: 6:10 _5 = move (_3.0: ()); // scope 1 at $DIR/issue-76997-inline-scopes-parenting.rs:6:5: 6:10 StorageLive(_6); // scope 2 at $DIR/issue-76997-inline-scopes-parenting.rs:6:5: 6:10 - _6 = const (); // scope 2 at $DIR/issue-76997-inline-scopes-parenting.rs:6:5: 6:10 - _0 = const (); // scope 3 at $DIR/issue-76997-inline-scopes-parenting.rs:6:5: 6:10 StorageDead(_6); // scope 2 at $DIR/issue-76997-inline-scopes-parenting.rs:6:5: 6:10 StorageDead(_5); // scope 1 at $DIR/issue-76997-inline-scopes-parenting.rs:6:5: 6:10 StorageDead(_4); // scope 1 at $DIR/issue-76997-inline-scopes-parenting.rs:6:9: 6:10 diff --git a/src/test/mir-opt/issue_73223.main.PreCodegen.32bit.diff b/src/test/mir-opt/issue_73223.main.PreCodegen.32bit.diff index e2ec0e82ebf..f6e6614bb6e 100644 --- a/src/test/mir-opt/issue_73223.main.PreCodegen.32bit.diff +++ b/src/test/mir-opt/issue_73223.main.PreCodegen.32bit.diff @@ -117,7 +117,6 @@ StorageDead(_10); // scope 3 at $SRC_DIR/core/src/macros/mod.rs:LL:COL StorageDead(_9); // scope 3 at $SRC_DIR/core/src/macros/mod.rs:LL:COL StorageDead(_6); // scope 3 at $SRC_DIR/core/src/macros/mod.rs:LL:COL - _0 = const (); // scope 0 at $DIR/issue-73223.rs:1:11: 9:2 StorageDead(_4); // scope 1 at $DIR/issue-73223.rs:9:1: 9:2 StorageDead(_1); // scope 0 at $DIR/issue-73223.rs:9:1: 9:2 return; // scope 0 at $DIR/issue-73223.rs:9:2: 9:2 diff --git a/src/test/mir-opt/issue_73223.main.PreCodegen.64bit.diff b/src/test/mir-opt/issue_73223.main.PreCodegen.64bit.diff index e2ec0e82ebf..f6e6614bb6e 100644 --- a/src/test/mir-opt/issue_73223.main.PreCodegen.64bit.diff +++ b/src/test/mir-opt/issue_73223.main.PreCodegen.64bit.diff @@ -117,7 +117,6 @@ StorageDead(_10); // scope 3 at $SRC_DIR/core/src/macros/mod.rs:LL:COL StorageDead(_9); // scope 3 at $SRC_DIR/core/src/macros/mod.rs:LL:COL StorageDead(_6); // scope 3 at $SRC_DIR/core/src/macros/mod.rs:LL:COL - _0 = const (); // scope 0 at $DIR/issue-73223.rs:1:11: 9:2 StorageDead(_4); // scope 1 at $DIR/issue-73223.rs:9:1: 9:2 StorageDead(_1); // scope 0 at $DIR/issue-73223.rs:9:1: 9:2 return; // scope 0 at $DIR/issue-73223.rs:9:2: 9:2 diff --git a/src/test/mir-opt/lower_intrinsics.f_u64.PreCodegen.before.mir b/src/test/mir-opt/lower_intrinsics.f_u64.PreCodegen.before.mir index a87d5e1f0ff..380f6ce9ba7 100644 --- a/src/test/mir-opt/lower_intrinsics.f_u64.PreCodegen.before.mir +++ b/src/test/mir-opt/lower_intrinsics.f_u64.PreCodegen.before.mir @@ -27,7 +27,6 @@ fn f_u64() -> () { StorageDead(_3); // scope 1 at $DIR/lower_intrinsics.rs:35:5: 35:21 StorageDead(_2); // scope 1 at $DIR/lower_intrinsics.rs:35:5: 35:21 StorageDead(_1); // scope 0 at $DIR/lower_intrinsics.rs:35:5: 35:21 - _0 = const (); // scope 0 at $DIR/lower_intrinsics.rs:34:16: 36:2 return; // scope 0 at $DIR/lower_intrinsics.rs:36:2: 36:2 } } diff --git a/src/test/mir-opt/lower_intrinsics.f_unit.PreCodegen.before.mir b/src/test/mir-opt/lower_intrinsics.f_unit.PreCodegen.before.mir index f8857eda737..2b9ffaaf971 100644 --- a/src/test/mir-opt/lower_intrinsics.f_unit.PreCodegen.before.mir +++ b/src/test/mir-opt/lower_intrinsics.f_unit.PreCodegen.before.mir @@ -22,7 +22,6 @@ fn f_unit() -> () { bb1: { StorageDead(_2); // scope 1 at $DIR/lower_intrinsics.rs:29:5: 29:19 StorageDead(_1); // scope 0 at $DIR/lower_intrinsics.rs:29:18: 29:19 - _0 = const (); // scope 0 at $DIR/lower_intrinsics.rs:28:17: 30:2 return; // scope 0 at $DIR/lower_intrinsics.rs:30:2: 30:2 } } diff --git a/src/test/mir-opt/multiple_return_terminators.test.MultipleReturnTerminators.diff b/src/test/mir-opt/multiple_return_terminators.test.MultipleReturnTerminators.diff index fb25cb90021..3dd526cfbc5 100644 --- a/src/test/mir-opt/multiple_return_terminators.test.MultipleReturnTerminators.diff +++ b/src/test/mir-opt/multiple_return_terminators.test.MultipleReturnTerminators.diff @@ -13,12 +13,10 @@ } bb1: { - _0 = const (); // scope 0 at $DIR/multiple_return_terminators.rs:5:10: 7:6 goto -> bb3; // scope 0 at $DIR/multiple_return_terminators.rs:5:5: 9:6 } bb2: { - _0 = const (); // scope 0 at $DIR/multiple_return_terminators.rs:7:12: 9:6 goto -> bb3; // scope 0 at $DIR/multiple_return_terminators.rs:5:5: 9:6 } diff --git a/src/test/mir-opt/remove_unneeded_drops.cannot_opt_generic.RemoveUnneededDrops.diff b/src/test/mir-opt/remove_unneeded_drops.cannot_opt_generic.RemoveUnneededDrops.diff index e55ee287ba3..2fc64fa8f52 100644 --- a/src/test/mir-opt/remove_unneeded_drops.cannot_opt_generic.RemoveUnneededDrops.diff +++ b/src/test/mir-opt/remove_unneeded_drops.cannot_opt_generic.RemoveUnneededDrops.diff @@ -14,7 +14,6 @@ StorageLive(_2); // scope 0 at $DIR/remove_unneeded_drops.rs:21:5: 21:12 StorageLive(_3); // scope 0 at $DIR/remove_unneeded_drops.rs:21:10: 21:11 _3 = move _1; // scope 0 at $DIR/remove_unneeded_drops.rs:21:10: 21:11 - _2 = const (); // scope 1 at $DIR/remove_unneeded_drops.rs:21:5: 21:12 drop(_3) -> [return: bb2, unwind: bb1]; // scope 1 at $DIR/remove_unneeded_drops.rs:21:5: 21:12 } diff --git a/src/test/mir-opt/remove_unneeded_drops.dont_opt.RemoveUnneededDrops.diff b/src/test/mir-opt/remove_unneeded_drops.dont_opt.RemoveUnneededDrops.diff index e5ad8f1ac75..18fdac1bc00 100644 --- a/src/test/mir-opt/remove_unneeded_drops.dont_opt.RemoveUnneededDrops.diff +++ b/src/test/mir-opt/remove_unneeded_drops.dont_opt.RemoveUnneededDrops.diff @@ -14,7 +14,6 @@ StorageLive(_2); // scope 0 at $DIR/remove_unneeded_drops.rs:9:5: 9:12 StorageLive(_3); // scope 0 at $DIR/remove_unneeded_drops.rs:9:10: 9:11 _3 = move _1; // scope 0 at $DIR/remove_unneeded_drops.rs:9:10: 9:11 - _2 = const (); // scope 1 at $DIR/remove_unneeded_drops.rs:9:5: 9:12 drop(_3) -> [return: bb2, unwind: bb1]; // scope 1 at $DIR/remove_unneeded_drops.rs:9:5: 9:12 } diff --git a/src/test/mir-opt/remove_unneeded_drops.opt.RemoveUnneededDrops.diff b/src/test/mir-opt/remove_unneeded_drops.opt.RemoveUnneededDrops.diff index bddf0e21039..1eb3d736765 100644 --- a/src/test/mir-opt/remove_unneeded_drops.opt.RemoveUnneededDrops.diff +++ b/src/test/mir-opt/remove_unneeded_drops.opt.RemoveUnneededDrops.diff @@ -14,7 +14,6 @@ StorageLive(_2); // scope 0 at $DIR/remove_unneeded_drops.rs:4:5: 4:12 StorageLive(_3); // scope 0 at $DIR/remove_unneeded_drops.rs:4:10: 4:11 _3 = _1; // scope 0 at $DIR/remove_unneeded_drops.rs:4:10: 4:11 - _2 = const (); // scope 1 at $DIR/remove_unneeded_drops.rs:4:5: 4:12 - drop(_3) -> bb1; // scope 1 at $DIR/remove_unneeded_drops.rs:4:5: 4:12 - } - diff --git a/src/test/mir-opt/remove_unneeded_drops.opt_generic_copy.RemoveUnneededDrops.diff b/src/test/mir-opt/remove_unneeded_drops.opt_generic_copy.RemoveUnneededDrops.diff index 87fb8a295c6..9b8a50e8541 100644 --- a/src/test/mir-opt/remove_unneeded_drops.opt_generic_copy.RemoveUnneededDrops.diff +++ b/src/test/mir-opt/remove_unneeded_drops.opt_generic_copy.RemoveUnneededDrops.diff @@ -14,7 +14,6 @@ StorageLive(_2); // scope 0 at $DIR/remove_unneeded_drops.rs:14:5: 14:12 StorageLive(_3); // scope 0 at $DIR/remove_unneeded_drops.rs:14:10: 14:11 _3 = _1; // scope 0 at $DIR/remove_unneeded_drops.rs:14:10: 14:11 - _2 = const (); // scope 1 at $DIR/remove_unneeded_drops.rs:14:5: 14:12 - drop(_3) -> bb1; // scope 1 at $DIR/remove_unneeded_drops.rs:14:5: 14:12 - } - diff --git a/src/test/mir-opt/simplify_locals.c.SimplifyLocals.diff b/src/test/mir-opt/simplify_locals.c.SimplifyLocals.diff index f1718c5752c..ff9e2671adc 100644 --- a/src/test/mir-opt/simplify_locals.c.SimplifyLocals.diff +++ b/src/test/mir-opt/simplify_locals.c.SimplifyLocals.diff @@ -25,7 +25,7 @@ - StorageDead(_3); // scope 1 at $DIR/simplify-locals.rs:16:25: 16:26 - StorageDead(_4); // scope 1 at $DIR/simplify-locals.rs:16:26: 16:27 - StorageDead(_2); // scope 1 at $DIR/simplify-locals.rs:16:26: 16:27 - _0 = const (); // scope 0 at $DIR/simplify-locals.rs:13:8: 17:2 +- _0 = const (); // scope 0 at $DIR/simplify-locals.rs:13:8: 17:2 StorageDead(_1); // scope 0 at $DIR/simplify-locals.rs:17:1: 17:2 return; // scope 0 at $DIR/simplify-locals.rs:17:2: 17:2 } diff --git a/src/test/mir-opt/simplify_locals.d1.SimplifyLocals.diff b/src/test/mir-opt/simplify_locals.d1.SimplifyLocals.diff index 76bf175d073..caa2a17700b 100644 --- a/src/test/mir-opt/simplify_locals.d1.SimplifyLocals.diff +++ b/src/test/mir-opt/simplify_locals.d1.SimplifyLocals.diff @@ -11,7 +11,7 @@ - StorageLive(_1); // scope 0 at $DIR/simplify-locals.rs:22:13: 22:17 - discriminant(_1) = 0; // scope 0 at $DIR/simplify-locals.rs:22:13: 22:17 - StorageDead(_1); // scope 0 at $DIR/simplify-locals.rs:22:17: 22:18 - _0 = const (); // scope 0 at $DIR/simplify-locals.rs:20:9: 23:2 +- _0 = const (); // scope 0 at $DIR/simplify-locals.rs:20:9: 23:2 return; // scope 0 at $DIR/simplify-locals.rs:23:2: 23:2 } } diff --git a/src/test/mir-opt/simplify_locals.d2.SimplifyLocals.diff b/src/test/mir-opt/simplify_locals.d2.SimplifyLocals.diff index c06fa09053c..80496d9a42a 100644 --- a/src/test/mir-opt/simplify_locals.d2.SimplifyLocals.diff +++ b/src/test/mir-opt/simplify_locals.d2.SimplifyLocals.diff @@ -31,7 +31,7 @@ - // + literal: Const { ty: E, val: Value(Scalar(0x01)) } - StorageDead(_1); // scope 0 at $DIR/simplify-locals.rs:28:25: 28:26 - StorageDead(_2); // scope 0 at $DIR/simplify-locals.rs:28:26: 28:27 - _0 = const (); // scope 0 at $DIR/simplify-locals.rs:26:9: 29:2 +- _0 = const (); // scope 0 at $DIR/simplify-locals.rs:26:9: 29:2 return; // scope 0 at $DIR/simplify-locals.rs:29:2: 29:2 } } diff --git a/src/test/mir-opt/simplify_locals.r.SimplifyLocals.diff b/src/test/mir-opt/simplify_locals.r.SimplifyLocals.diff index 85cf398d316..7d36e1a9928 100644 --- a/src/test/mir-opt/simplify_locals.r.SimplifyLocals.diff +++ b/src/test/mir-opt/simplify_locals.r.SimplifyLocals.diff @@ -23,7 +23,7 @@ - StorageLive(_3); // scope 2 at $DIR/simplify-locals.rs:36:13: 36:19 - _3 = &mut _1; // scope 2 at $DIR/simplify-locals.rs:36:13: 36:19 - StorageDead(_3); // scope 2 at $DIR/simplify-locals.rs:36:19: 36:20 - _0 = const (); // scope 0 at $DIR/simplify-locals.rs:32:8: 37:2 +- _0 = const (); // scope 0 at $DIR/simplify-locals.rs:32:8: 37:2 StorageDead(_1); // scope 0 at $DIR/simplify-locals.rs:37:1: 37:2 return; // scope 0 at $DIR/simplify-locals.rs:37:2: 37:2 } diff --git a/src/test/mir-opt/simplify_locals.t1.SimplifyLocals.diff b/src/test/mir-opt/simplify_locals.t1.SimplifyLocals.diff index 991a0721cca..89275418d68 100644 --- a/src/test/mir-opt/simplify_locals.t1.SimplifyLocals.diff +++ b/src/test/mir-opt/simplify_locals.t1.SimplifyLocals.diff @@ -15,7 +15,7 @@ - _1 = (*_2); // scope 1 at $DIR/simplify-locals.rs:44:14: 44:15 - StorageDead(_2); // scope 0 at $DIR/simplify-locals.rs:44:17: 44:18 - StorageDead(_1); // scope 0 at $DIR/simplify-locals.rs:44:17: 44:18 - _0 = const (); // scope 0 at $DIR/simplify-locals.rs:42:9: 45:2 +- _0 = const (); // scope 0 at $DIR/simplify-locals.rs:42:9: 45:2 return; // scope 0 at $DIR/simplify-locals.rs:45:2: 45:2 } } diff --git a/src/test/mir-opt/simplify_locals.t2.SimplifyLocals.diff b/src/test/mir-opt/simplify_locals.t2.SimplifyLocals.diff index 6c9ed96e78f..b2344c871e4 100644 --- a/src/test/mir-opt/simplify_locals.t2.SimplifyLocals.diff +++ b/src/test/mir-opt/simplify_locals.t2.SimplifyLocals.diff @@ -15,7 +15,7 @@ - _1 = &mut (*_2); // scope 1 at $DIR/simplify-locals.rs:50:14: 50:20 - StorageDead(_2); // scope 0 at $DIR/simplify-locals.rs:50:22: 50:23 - StorageDead(_1); // scope 0 at $DIR/simplify-locals.rs:50:22: 50:23 - _0 = const (); // scope 0 at $DIR/simplify-locals.rs:48:9: 51:2 +- _0 = const (); // scope 0 at $DIR/simplify-locals.rs:48:9: 51:2 return; // scope 0 at $DIR/simplify-locals.rs:51:2: 51:2 } } diff --git a/src/test/mir-opt/simplify_locals.t3.SimplifyLocals.diff b/src/test/mir-opt/simplify_locals.t3.SimplifyLocals.diff index 2d5fb352f8b..95982f0a9cf 100644 --- a/src/test/mir-opt/simplify_locals.t3.SimplifyLocals.diff +++ b/src/test/mir-opt/simplify_locals.t3.SimplifyLocals.diff @@ -19,7 +19,7 @@ - StorageDead(_3); // scope 0 at $DIR/simplify-locals.rs:56:23: 56:24 - StorageDead(_2); // scope 0 at $DIR/simplify-locals.rs:56:23: 56:24 - StorageDead(_1); // scope 0 at $DIR/simplify-locals.rs:56:23: 56:24 - _0 = const (); // scope 0 at $DIR/simplify-locals.rs:54:9: 57:2 +- _0 = const (); // scope 0 at $DIR/simplify-locals.rs:54:9: 57:2 return; // scope 0 at $DIR/simplify-locals.rs:57:2: 57:2 } } diff --git a/src/test/mir-opt/simplify_locals_fixedpoint.foo.SimplifyLocals.diff b/src/test/mir-opt/simplify_locals_fixedpoint.foo.SimplifyLocals.diff index 70725e5f14f..69da1c7be88 100644 --- a/src/test/mir-opt/simplify_locals_fixedpoint.foo.SimplifyLocals.diff +++ b/src/test/mir-opt/simplify_locals_fixedpoint.foo.SimplifyLocals.diff @@ -30,7 +30,7 @@ } bb1: { - _0 = const (); // scope 0 at $DIR/simplify-locals-fixedpoint.rs:8:6: 8:6 +- _0 = const (); // scope 0 at $DIR/simplify-locals-fixedpoint.rs:8:6: 8:6 goto -> bb7; // scope 0 at $DIR/simplify-locals-fixedpoint.rs:4:5: 8:6 } @@ -51,12 +51,12 @@ } bb4: { - _0 = const (); // 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 goto -> bb6; // scope 1 at $DIR/simplify-locals-fixedpoint.rs:5:9: 7:10 } bb5: { - _0 = const (); // scope 1 at $DIR/simplify-locals-fixedpoint.rs:7:10: 7:10 +- _0 = const (); // scope 1 at $DIR/simplify-locals-fixedpoint.rs:7:10: 7:10 goto -> bb6; // scope 1 at $DIR/simplify-locals-fixedpoint.rs:5:9: 7:10 } diff --git a/src/test/mir-opt/simplify_locals_removes_unused_consts.main.SimplifyLocals.diff b/src/test/mir-opt/simplify_locals_removes_unused_consts.main.SimplifyLocals.diff index 34f8ca870cd..8d6d531bd34 100644 --- a/src/test/mir-opt/simplify_locals_removes_unused_consts.main.SimplifyLocals.diff +++ b/src/test/mir-opt/simplify_locals_removes_unused_consts.main.SimplifyLocals.diff @@ -71,8 +71,8 @@ - StorageDead(_9); // scope 1 at $DIR/simplify-locals-removes-unused-consts.rs:16:34: 16:35 - 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 +- _0 = const (); // scope 0 at $DIR/simplify-locals-removes-unused-consts.rs:12:11: 17:2 + 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 return; // scope 0 at $DIR/simplify-locals-removes-unused-consts.rs:17:2: 17:2 } } diff --git a/src/test/mir-opt/uninhabited_enum.process_void.SimplifyLocals.after.mir b/src/test/mir-opt/uninhabited_enum.process_void.SimplifyLocals.after.mir index 539ed710719..eeaabb7b988 100644 --- a/src/test/mir-opt/uninhabited_enum.process_void.SimplifyLocals.after.mir +++ b/src/test/mir-opt/uninhabited_enum.process_void.SimplifyLocals.after.mir @@ -13,7 +13,6 @@ fn process_void(_1: *const Void) -> () { bb0: { 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 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/while_let_loops.change_loop_body.PreCodegen.after.32bit.mir b/src/test/mir-opt/while_let_loops.change_loop_body.PreCodegen.after.32bit.mir index dae0cbb65a4..b6767077d42 100644 --- a/src/test/mir-opt/while_let_loops.change_loop_body.PreCodegen.after.32bit.mir +++ b/src/test/mir-opt/while_let_loops.change_loop_body.PreCodegen.after.32bit.mir @@ -10,7 +10,6 @@ fn change_loop_body() -> () { bb0: { StorageLive(_1); // scope 0 at $DIR/while_let_loops.rs:6:9: 6:15 _1 = const 0_i32; // scope 0 at $DIR/while_let_loops.rs:6:18: 6:19 - _0 = const (); // scope 1 at $DIR/while_let_loops.rs:7:5: 10:6 StorageDead(_1); // scope 0 at $DIR/while_let_loops.rs:11:1: 11:2 return; // scope 0 at $DIR/while_let_loops.rs:11:2: 11:2 } diff --git a/src/test/mir-opt/while_let_loops.change_loop_body.PreCodegen.after.64bit.mir b/src/test/mir-opt/while_let_loops.change_loop_body.PreCodegen.after.64bit.mir index dae0cbb65a4..b6767077d42 100644 --- a/src/test/mir-opt/while_let_loops.change_loop_body.PreCodegen.after.64bit.mir +++ b/src/test/mir-opt/while_let_loops.change_loop_body.PreCodegen.after.64bit.mir @@ -10,7 +10,6 @@ fn change_loop_body() -> () { bb0: { StorageLive(_1); // scope 0 at $DIR/while_let_loops.rs:6:9: 6:15 _1 = const 0_i32; // scope 0 at $DIR/while_let_loops.rs:6:18: 6:19 - _0 = const (); // scope 1 at $DIR/while_let_loops.rs:7:5: 10:6 StorageDead(_1); // scope 0 at $DIR/while_let_loops.rs:11:1: 11:2 return; // scope 0 at $DIR/while_let_loops.rs:11:2: 11:2 } diff --git a/src/test/mir-opt/while_storage.while_loop.PreCodegen.after.mir b/src/test/mir-opt/while_storage.while_loop.PreCodegen.after.mir index 0c034891a80..eb3ab1c31e3 100644 --- a/src/test/mir-opt/while_storage.while_loop.PreCodegen.after.mir +++ b/src/test/mir-opt/while_storage.while_loop.PreCodegen.after.mir @@ -24,7 +24,6 @@ fn while_loop(_1: bool) -> () { } bb2: { - _0 = const (); // scope 0 at $DIR/while-storage.rs:10:5: 14:6 goto -> bb7; // scope 0 at $DIR/while-storage.rs:10:5: 14:6 } @@ -44,7 +43,6 @@ fn while_loop(_1: bool) -> () { } bb5: { - _0 = const (); // scope 0 at $DIR/while-storage.rs:12:13: 12:18 StorageDead(_4); // scope 0 at $DIR/while-storage.rs:13:9: 13:10 goto -> bb7; // scope 0 at $DIR/while-storage.rs:1:1: 1:1 } |