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| author | bors <bors@rust-lang.org> | 2023-05-09 21:54:34 +0000 |
|---|---|---|
| committer | bors <bors@rust-lang.org> | 2023-05-09 21:54:34 +0000 |
| commit | 50dff955a9367a4efc72b831549e368992807beb (patch) | |
| tree | 0d973073cd55b4edb93eba8fe93059950a456c0f /tests | |
| parent | 2f6bc5d259e7ab25ddfdd33de53b892770218918 (diff) | |
| parent | bde213cfe5490d67717fc022b04f03a57e5daa7f (diff) | |
| download | rust-50dff955a9367a4efc72b831549e368992807beb.tar.gz rust-50dff955a9367a4efc72b831549e368992807beb.zip | |
Auto merge of #106285 - cjgillot:refprop-ssa, r=JakobDegen
Implement SSA-based reference propagation Rust has a tendency to create a lot of short-lived borrows, in particular for method calls. This PR aims to remove those short-lived borrows with a const-propagation dedicated to pointers to local places. This pass aims to transform the following pattern: ``` _1 = &raw? mut? PLACE; _3 = *_1; _4 = &raw? mut? *_1; ``` Into ``` _1 = &raw? mut? PLACE; _3 = PLACE; _4 = &raw? mut? PLACE; ``` where `PLACE` is a direct or an indirect place expression. By removing indirection, this pass should help both dest-prop and const-prop to handle more cases. This optimization is distinct from const-prop and dataflow const-prop since the borrow-reborrow patterns needs to preserve borrowck invariants, especially the uniqueness property of mutable references. The pointed-to places are computed using a SSA analysis. We suppose that removable borrows are typically temporaries from autoref, so they are by construction assigned only once, and a SSA analysis is enough to catch them. For each local, we store both where and how it is used, in order to efficiently compute the all-or-nothing property. Thanks to `Derefer`, we only have to track locals, not places in general. --- There are 3 properties that need to be upheld for this transformation to be legal: - place constness: `PLACE` must refer to the same memory wherever it appears; - pointer liveness: we must not introduce dereferences of dangling pointers; - `&mut` borrow uniqueness. ## Constness If `PLACE` is an indirect projection, if its of the form `(*LOCAL).PROJECTIONS` where: - `LOCAL` is SSA; - all projections in `PROJECTIONS` are constant (no dereference and no indexing). If `PLACE` is a direct projection of a local, we consider it as constant if: - the local is always live, or it has a single `StorageLive` that dominates all uses; - all projections are constant. # Liveness When performing a substitution, we must take care not to introduce uses of dangling locals. Using a dangling borrow is UB. Therefore, we assume that for any use of `*x`, where `x` is a borrow, the pointed-to memory is live. Limitations: - occurrences of `*x` in an `&raw mut? *x` are accepted; - raw pointers are allowed to be dangling. In those 2 case, we do not substitute anything, to be on the safe side. **Open question:** we do not differentiate borrows of ZST and non-ZST. The UB rules may be different depending on the layout. Having a different treatment would effectively prevent this pass from running on polymorphic MIR, which defeats the purpose of MIR opts. ## Uniqueness For `&mut` borrows, we also need to preserve the uniqueness property: we must avoid creating a state where we interleave uses of `*_1` and `_2`. To do it, we only perform full substitution of mutable borrows: we replace either all or none of the occurrences of `*_1`. Some care has to be taken when `_1` is copied in other locals. ``` _1 = &raw? mut? _2; _3 = *_1; _4 = _1 _5 = *_4 ``` In such cases, fully substituting `_1` means fully substituting all of the copies. For immutable borrows, we do not need to preserve such uniqueness property, so we perform all the possible substitutions without removing the `_1 = &_2` statement.
Diffstat (limited to 'tests')
15 files changed, 2586 insertions, 46 deletions
diff --git a/tests/mir-opt/copy-prop/borrowed_local.f.CopyProp.diff b/tests/mir-opt/copy-prop/borrowed_local.f.CopyProp.diff index 2a0bff57db9..51707e71661 100644 --- a/tests/mir-opt/copy-prop/borrowed_local.f.CopyProp.diff +++ b/tests/mir-opt/copy-prop/borrowed_local.f.CopyProp.diff @@ -20,8 +20,7 @@ } bb1: { -- _0 = opaque::<u8>(_3) -> bb2; // scope 0 at $DIR/borrowed_local.rs:+12:13: +12:38 -+ _0 = opaque::<u8>(_1) -> bb2; // scope 0 at $DIR/borrowed_local.rs:+12:13: +12:38 + _0 = opaque::<u8>(_3) -> bb2; // scope 0 at $DIR/borrowed_local.rs:+12:13: +12:38 // mir::Constant // + span: $DIR/borrowed_local.rs:28:28: 28:34 // + literal: Const { ty: fn(u8) -> bool {opaque::<u8>}, val: Value(<ZST>) } diff --git a/tests/mir-opt/reference_prop.dominate_storage.ReferencePropagation.diff b/tests/mir-opt/reference_prop.dominate_storage.ReferencePropagation.diff new file mode 100644 index 00000000000..8edc83cbf67 --- /dev/null +++ b/tests/mir-opt/reference_prop.dominate_storage.ReferencePropagation.diff @@ -0,0 +1,38 @@ +- // MIR for `dominate_storage` before ReferencePropagation ++ // MIR for `dominate_storage` after ReferencePropagation + + fn dominate_storage() -> () { + let mut _0: (); // return place in scope 0 at $DIR/reference_prop.rs:+0:23: +0:23 + let mut _1: i32; // in scope 0 at $SRC_DIR/core/src/intrinsics/mir.rs:LL:COL + let mut _2: &i32; // in scope 0 at $SRC_DIR/core/src/intrinsics/mir.rs:LL:COL + let mut _3: i32; // in scope 0 at $SRC_DIR/core/src/intrinsics/mir.rs:LL:COL + let mut _4: bool; // in scope 0 at $SRC_DIR/core/src/intrinsics/mir.rs:LL:COL + let mut _5: i32; // in scope 0 at $SRC_DIR/core/src/intrinsics/mir.rs:LL:COL + let mut _6: bool; // in scope 0 at $SRC_DIR/core/src/intrinsics/mir.rs:LL:COL + + bb0: { + goto -> bb1; // scope 0 at $DIR/reference_prop.rs:+8:11: +8:20 + } + + bb1: { + _1 = const 5_i32; // scope 0 at $DIR/reference_prop.rs:+10:13: +10:18 + _2 = &_1; // scope 0 at $DIR/reference_prop.rs:+11:13: +11:19 + goto -> bb2; // scope 0 at $DIR/reference_prop.rs:+12:13: +12:22 + } + + bb2: { + _5 = (*_2); // scope 0 at $SRC_DIR/core/src/intrinsics/mir.rs:LL:COL + _0 = opaque::<i32>(_5) -> bb3; // scope 0 at $DIR/reference_prop.rs:+16:13: +16:38 + // mir::Constant + // + span: $DIR/reference_prop.rs:383:28: 383:34 + // + literal: Const { ty: fn(i32) {opaque::<i32>}, val: Value(<ZST>) } + } + + bb3: { + StorageDead(_1); // scope 0 at $DIR/reference_prop.rs:+19:13: +19:27 + StorageLive(_1); // scope 0 at $DIR/reference_prop.rs:+20:13: +20:27 + _6 = const true; // scope 0 at $SRC_DIR/core/src/intrinsics/mir.rs:LL:COL + switchInt(_6) -> [0: bb3, otherwise: bb1]; // scope 0 at $DIR/reference_prop.rs:+22:13: +22:47 + } + } + diff --git a/tests/mir-opt/reference_prop.maybe_dead.ReferencePropagation.diff b/tests/mir-opt/reference_prop.maybe_dead.ReferencePropagation.diff new file mode 100644 index 00000000000..920755bdd1d --- /dev/null +++ b/tests/mir-opt/reference_prop.maybe_dead.ReferencePropagation.diff @@ -0,0 +1,56 @@ +- // MIR for `maybe_dead` before ReferencePropagation ++ // MIR for `maybe_dead` after ReferencePropagation + + fn maybe_dead(_1: bool) -> () { + let mut _0: (); // return place in scope 0 at $DIR/reference_prop.rs:+0:24: +0:24 + let mut _2: i32; // in scope 0 at $SRC_DIR/core/src/intrinsics/mir.rs:LL:COL + let mut _3: i32; // in scope 0 at $SRC_DIR/core/src/intrinsics/mir.rs:LL:COL + let mut _4: &i32; // in scope 0 at $SRC_DIR/core/src/intrinsics/mir.rs:LL:COL + let mut _5: &mut i32; // in scope 0 at $SRC_DIR/core/src/intrinsics/mir.rs:LL:COL + let mut _6: i32; // in scope 0 at $SRC_DIR/core/src/intrinsics/mir.rs:LL:COL + let mut _7: i32; // in scope 0 at $SRC_DIR/core/src/intrinsics/mir.rs:LL:COL + let mut _8: i32; // in scope 0 at $SRC_DIR/core/src/intrinsics/mir.rs:LL:COL + + bb0: { + StorageLive(_2); // scope 0 at $DIR/reference_prop.rs:+7:13: +7:27 + StorageLive(_3); // scope 0 at $DIR/reference_prop.rs:+8:13: +8:27 + _2 = const 5_i32; // scope 0 at $DIR/reference_prop.rs:+9:13: +9:18 + _3 = const 5_i32; // scope 0 at $DIR/reference_prop.rs:+10:13: +10:18 + _4 = &_2; // scope 0 at $SRC_DIR/core/src/intrinsics/mir.rs:LL:COL + _5 = &mut _3; // scope 0 at $SRC_DIR/core/src/intrinsics/mir.rs:LL:COL + (*_5) = const 7_i32; // scope 0 at $DIR/reference_prop.rs:+14:13: +14:19 +- _6 = (*_4); // scope 0 at $SRC_DIR/core/src/intrinsics/mir.rs:LL:COL ++ _6 = _2; // scope 0 at $SRC_DIR/core/src/intrinsics/mir.rs:LL:COL + switchInt(_1) -> [1: bb1, otherwise: bb2]; // scope 0 at $DIR/reference_prop.rs:+17:13: +17:46 + } + + bb1: { + StorageDead(_2); // scope 0 at $DIR/reference_prop.rs:+20:13: +20:27 + StorageDead(_3); // scope 0 at $DIR/reference_prop.rs:+21:13: +21:27 + _0 = opaque::<i32>(_6) -> bb2; // scope 0 at $DIR/reference_prop.rs:+22:13: +22:38 + // mir::Constant + // + span: $DIR/reference_prop.rs:417:28: 417:34 + // + literal: Const { ty: fn(i32) {opaque::<i32>}, val: Value(<ZST>) } + } + + bb2: { + _7 = (*_4); // scope 0 at $SRC_DIR/core/src/intrinsics/mir.rs:LL:COL + _0 = opaque::<i32>(_7) -> bb3; // scope 0 at $DIR/reference_prop.rs:+27:13: +27:38 + // mir::Constant + // + span: $DIR/reference_prop.rs:422:28: 422:34 + // + literal: Const { ty: fn(i32) {opaque::<i32>}, val: Value(<ZST>) } + } + + bb3: { + _8 = (*_5); // scope 0 at $SRC_DIR/core/src/intrinsics/mir.rs:LL:COL + _0 = opaque::<i32>(_8) -> bb4; // scope 0 at $DIR/reference_prop.rs:+33:13: +33:43 + // mir::Constant + // + span: $DIR/reference_prop.rs:428:33: 428:39 + // + literal: Const { ty: fn(i32) {opaque::<i32>}, val: Value(<ZST>) } + } + + bb4: { + return; // scope 0 at $DIR/reference_prop.rs:+36:13: +36:21 + } + } + diff --git a/tests/mir-opt/reference_prop.multiple_storage.ReferencePropagation.diff b/tests/mir-opt/reference_prop.multiple_storage.ReferencePropagation.diff new file mode 100644 index 00000000000..07bfdf0b2f1 --- /dev/null +++ b/tests/mir-opt/reference_prop.multiple_storage.ReferencePropagation.diff @@ -0,0 +1,27 @@ +- // MIR for `multiple_storage` before ReferencePropagation ++ // MIR for `multiple_storage` after ReferencePropagation + + fn multiple_storage() -> () { + let mut _0: (); // return place in scope 0 at $DIR/reference_prop.rs:+0:23: +0:23 + let mut _1: i32; // in scope 0 at $SRC_DIR/core/src/intrinsics/mir.rs:LL:COL + let mut _2: &i32; // in scope 0 at $SRC_DIR/core/src/intrinsics/mir.rs:LL:COL + let mut _3: i32; // in scope 0 at $SRC_DIR/core/src/intrinsics/mir.rs:LL:COL + + bb0: { + StorageLive(_1); // scope 0 at $DIR/reference_prop.rs:+6:13: +6:27 + _1 = const 5_i32; // scope 0 at $DIR/reference_prop.rs:+7:13: +7:18 + _2 = &_1; // scope 0 at $SRC_DIR/core/src/intrinsics/mir.rs:LL:COL + StorageDead(_1); // scope 0 at $DIR/reference_prop.rs:+9:13: +9:27 + StorageLive(_1); // scope 0 at $DIR/reference_prop.rs:+10:13: +10:27 + _3 = (*_2); // scope 0 at $SRC_DIR/core/src/intrinsics/mir.rs:LL:COL + _0 = opaque::<i32>(_3) -> bb1; // scope 0 at $DIR/reference_prop.rs:+14:13: +14:43 + // mir::Constant + // + span: $DIR/reference_prop.rs:357:33: 357:39 + // + literal: Const { ty: fn(i32) {opaque::<i32>}, val: Value(<ZST>) } + } + + bb1: { + return; // scope 0 at $DIR/reference_prop.rs:+18:13: +18:21 + } + } + diff --git a/tests/mir-opt/reference_prop.read_through_raw.ReferencePropagation.diff b/tests/mir-opt/reference_prop.read_through_raw.ReferencePropagation.diff new file mode 100644 index 00000000000..a7d505c6906 --- /dev/null +++ b/tests/mir-opt/reference_prop.read_through_raw.ReferencePropagation.diff @@ -0,0 +1,24 @@ +- // MIR for `read_through_raw` before ReferencePropagation ++ // MIR for `read_through_raw` after ReferencePropagation + + fn read_through_raw(_1: &mut usize) -> usize { + let mut _0: usize; // return place in scope 0 at $DIR/reference_prop.rs:+0:39: +0:44 + let mut _2: &mut usize; // in scope 0 at $SRC_DIR/core/src/intrinsics/mir.rs:LL:COL + let mut _3: &mut usize; // in scope 0 at $SRC_DIR/core/src/intrinsics/mir.rs:LL:COL + let mut _4: *mut usize; // in scope 0 at $SRC_DIR/core/src/intrinsics/mir.rs:LL:COL + let mut _5: *mut usize; // in scope 0 at $SRC_DIR/core/src/intrinsics/mir.rs:LL:COL + + bb0: { + _2 = &mut (*_1); // scope 0 at $DIR/reference_prop.rs:+10:13: +10:25 +- _3 = &mut (*_2); // scope 0 at $DIR/reference_prop.rs:+11:13: +11:26 +- _4 = &raw mut (*_2); // scope 0 at $DIR/reference_prop.rs:+12:13: +12:30 +- _5 = &raw mut (*_3); // scope 0 at $DIR/reference_prop.rs:+13:13: +13:30 +- _0 = (*_4); // scope 0 at $DIR/reference_prop.rs:+15:13: +15:22 +- _0 = (*_5); // scope 0 at $DIR/reference_prop.rs:+16:13: +16:22 ++ _3 = &mut (*_1); // scope 0 at $DIR/reference_prop.rs:+11:13: +11:26 ++ _0 = (*_2); // scope 0 at $DIR/reference_prop.rs:+15:13: +15:22 ++ _0 = (*_3); // scope 0 at $DIR/reference_prop.rs:+16:13: +16:22 + return; // scope 0 at $DIR/reference_prop.rs:+17:13: +17:21 + } + } + diff --git a/tests/mir-opt/reference_prop.reference_propagation.ReferencePropagation.diff b/tests/mir-opt/reference_prop.reference_propagation.ReferencePropagation.diff new file mode 100644 index 00000000000..e41fc28461a --- /dev/null +++ b/tests/mir-opt/reference_prop.reference_propagation.ReferencePropagation.diff @@ -0,0 +1,375 @@ +- // MIR for `reference_propagation` before ReferencePropagation ++ // MIR for `reference_propagation` after ReferencePropagation + + fn reference_propagation(_1: &T, _2: &T) -> () { + debug single => _1; // in scope 0 at $DIR/reference_prop.rs:+0:39: +0:45 + debug multiple => _2; // in scope 0 at $DIR/reference_prop.rs:+0:54: +0:66 + let mut _0: (); // return place in scope 0 at $DIR/reference_prop.rs:+0:75: +0:75 + let _3: (); // in scope 0 at $DIR/reference_prop.rs:+2:5: +7:6 + let _4: usize; // in scope 0 at $DIR/reference_prop.rs:+3:13: +3:14 + let _7: (); // in scope 0 at $DIR/reference_prop.rs:+6:9: +6:19 + let mut _8: (); // in scope 0 at $DIR/reference_prop.rs:+6:16: +6:18 + let _9: (); // in scope 0 at $DIR/reference_prop.rs:+10:5: +18:6 + let _10: usize; // in scope 0 at $DIR/reference_prop.rs:+11:13: +11:14 + let mut _13: &usize; // in scope 0 at $DIR/reference_prop.rs:+14:13: +14:16 + let _14: &usize; // in scope 0 at $DIR/reference_prop.rs:+14:13: +14:16 + let _16: (); // in scope 0 at $DIR/reference_prop.rs:+17:9: +17:19 + let mut _17: (); // in scope 0 at $DIR/reference_prop.rs:+17:16: +17:18 + let _18: (); // in scope 0 at $DIR/reference_prop.rs:+21:5: +27:6 + let _19: usize; // in scope 0 at $DIR/reference_prop.rs:+22:13: +22:14 + let _23: (); // in scope 0 at $DIR/reference_prop.rs:+26:9: +26:19 + let mut _24: (); // in scope 0 at $DIR/reference_prop.rs:+26:16: +26:18 + let _25: (); // in scope 0 at $DIR/reference_prop.rs:+30:5: +36:6 + let _26: usize; // in scope 0 at $DIR/reference_prop.rs:+31:13: +31:14 + let _30: (); // in scope 0 at $DIR/reference_prop.rs:+35:9: +35:19 + let mut _31: (); // in scope 0 at $DIR/reference_prop.rs:+35:16: +35:18 + let _32: (); // in scope 0 at $DIR/reference_prop.rs:+39:5: +44:6 + let _33: usize; // in scope 0 at $DIR/reference_prop.rs:+40:13: +40:14 + let _36: (); // in scope 0 at $DIR/reference_prop.rs:+43:9: +43:18 + let mut _37: &usize; // in scope 0 at $DIR/reference_prop.rs:+43:16: +43:17 + let _38: (); // in scope 0 at $DIR/reference_prop.rs:+47:5: +57:6 + let _39: usize; // in scope 0 at $DIR/reference_prop.rs:+48:13: +48:14 + let _45: (); // in scope 0 at $DIR/reference_prop.rs:+56:9: +56:19 + let mut _46: &usize; // in scope 0 at $DIR/reference_prop.rs:+56:16: +56:18 + let _47: (); // in scope 0 at $DIR/reference_prop.rs:+60:5: +64:6 + let _48: &T; // in scope 0 at $DIR/reference_prop.rs:+61:13: +61:14 + let _50: (); // in scope 0 at $DIR/reference_prop.rs:+63:9: +63:19 + let mut _51: (); // in scope 0 at $DIR/reference_prop.rs:+63:16: +63:18 + let _52: &T; // in scope 0 at $DIR/reference_prop.rs:+68:13: +68:14 + let mut _53: &T; // in scope 0 at $DIR/reference_prop.rs:+69:20: +69:28 + let _54: &T; // in scope 0 at $DIR/reference_prop.rs:+69:20: +69:28 + let _56: (); // in scope 0 at $DIR/reference_prop.rs:+71:9: +71:19 + let mut _57: (); // in scope 0 at $DIR/reference_prop.rs:+71:16: +71:18 + scope 1 { + debug a => _4; // in scope 1 at $DIR/reference_prop.rs:+3:13: +3:14 + let _5: &usize; // in scope 1 at $DIR/reference_prop.rs:+4:13: +4:14 + scope 2 { + debug b => _5; // in scope 2 at $DIR/reference_prop.rs:+4:13: +4:14 + let _6: usize; // in scope 2 at $DIR/reference_prop.rs:+5:13: +5:14 + scope 3 { + debug c => _6; // in scope 3 at $DIR/reference_prop.rs:+5:13: +5:14 + } + } + } + scope 4 { + debug a => _10; // in scope 4 at $DIR/reference_prop.rs:+11:13: +11:14 + let _11: usize; // in scope 4 at $DIR/reference_prop.rs:+12:13: +12:15 + scope 5 { + debug a2 => _11; // in scope 5 at $DIR/reference_prop.rs:+12:13: +12:15 + let mut _12: &usize; // in scope 5 at $DIR/reference_prop.rs:+13:13: +13:18 + scope 6 { + debug b => _12; // in scope 6 at $DIR/reference_prop.rs:+13:13: +13:18 + let _15: usize; // in scope 6 at $DIR/reference_prop.rs:+16:13: +16:14 + scope 7 { + debug c => _15; // in scope 7 at $DIR/reference_prop.rs:+16:13: +16:14 + } + } + } + } + scope 8 { + debug a => _19; // in scope 8 at $DIR/reference_prop.rs:+22:13: +22:14 + let _20: &usize; // in scope 8 at $DIR/reference_prop.rs:+23:13: +23:14 + scope 9 { + debug b => _20; // in scope 9 at $DIR/reference_prop.rs:+23:13: +23:14 + let _21: &&usize; // in scope 9 at $DIR/reference_prop.rs:+24:13: +24:14 + scope 10 { + debug d => _21; // in scope 10 at $DIR/reference_prop.rs:+24:13: +24:14 + let _22: usize; // in scope 10 at $DIR/reference_prop.rs:+25:13: +25:14 + scope 11 { + debug c => _22; // in scope 11 at $DIR/reference_prop.rs:+25:13: +25:14 + } + } + } + } + scope 12 { + debug a => _26; // in scope 12 at $DIR/reference_prop.rs:+31:13: +31:14 + let mut _27: &usize; // in scope 12 at $DIR/reference_prop.rs:+32:13: +32:18 + scope 13 { + debug b => _27; // in scope 13 at $DIR/reference_prop.rs:+32:13: +32:18 + let _28: &mut &usize; // in scope 13 at $DIR/reference_prop.rs:+33:13: +33:14 + scope 14 { + debug d => _28; // in scope 14 at $DIR/reference_prop.rs:+33:13: +33:14 + let _29: usize; // in scope 14 at $DIR/reference_prop.rs:+34:13: +34:14 + scope 15 { + debug c => _29; // in scope 15 at $DIR/reference_prop.rs:+34:13: +34:14 + } + } + } + } + scope 16 { + debug a => _33; // in scope 16 at $DIR/reference_prop.rs:+40:13: +40:14 + let _34: &usize; // in scope 16 at $DIR/reference_prop.rs:+41:13: +41:14 + scope 17 { + debug b => _34; // in scope 17 at $DIR/reference_prop.rs:+41:13: +41:14 + let _35: usize; // in scope 17 at $DIR/reference_prop.rs:+42:13: +42:14 + scope 18 { + debug c => _35; // in scope 18 at $DIR/reference_prop.rs:+42:13: +42:14 + } + } + } + scope 19 { + debug a => _39; // in scope 19 at $DIR/reference_prop.rs:+48:13: +48:14 + let _40: &usize; // in scope 19 at $DIR/reference_prop.rs:+49:13: +49:15 + scope 20 { + debug b1 => _40; // in scope 20 at $DIR/reference_prop.rs:+49:13: +49:15 + let _41: usize; // in scope 20 at $DIR/reference_prop.rs:+50:13: +50:14 + scope 21 { + debug c => _41; // in scope 21 at $DIR/reference_prop.rs:+50:13: +50:14 + let _42: &usize; // in scope 21 at $DIR/reference_prop.rs:+51:13: +51:15 + scope 22 { + debug b2 => _42; // in scope 22 at $DIR/reference_prop.rs:+51:13: +51:15 + let _43: usize; // in scope 22 at $DIR/reference_prop.rs:+52:13: +52:15 + scope 23 { + debug c2 => _43; // in scope 23 at $DIR/reference_prop.rs:+52:13: +52:15 + let _44: &usize; // in scope 23 at $DIR/reference_prop.rs:+53:13: +53:15 + scope 24 { + debug b3 => _44; // in scope 24 at $DIR/reference_prop.rs:+53:13: +53:15 + } + } + } + } + } + } + scope 25 { + debug a => _48; // in scope 25 at $DIR/reference_prop.rs:+61:13: +61:14 + let _49: T; // in scope 25 at $DIR/reference_prop.rs:+62:13: +62:14 + scope 26 { + debug b => _49; // in scope 26 at $DIR/reference_prop.rs:+62:13: +62:14 + } + } + scope 27 { + debug a => _52; // in scope 27 at $DIR/reference_prop.rs:+68:13: +68:14 + let _55: T; // in scope 27 at $DIR/reference_prop.rs:+70:13: +70:14 + scope 28 { + debug b => _55; // in scope 28 at $DIR/reference_prop.rs:+70:13: +70:14 + } + } + + bb0: { +- StorageLive(_3); // scope 0 at $DIR/reference_prop.rs:+2:5: +7:6 + StorageLive(_4); // scope 0 at $DIR/reference_prop.rs:+3:13: +3:14 + _4 = const 5_usize; // scope 0 at $DIR/reference_prop.rs:+3:17: +3:24 + StorageLive(_5); // scope 1 at $DIR/reference_prop.rs:+4:13: +4:14 + _5 = &_4; // scope 1 at $DIR/reference_prop.rs:+4:17: +4:19 + StorageLive(_6); // scope 2 at $DIR/reference_prop.rs:+5:13: +5:14 +- _6 = (*_5); // scope 2 at $DIR/reference_prop.rs:+5:17: +5:19 ++ _6 = _4; // scope 2 at $DIR/reference_prop.rs:+5:17: +5:19 + StorageLive(_7); // scope 3 at $DIR/reference_prop.rs:+6:9: +6:19 + StorageLive(_8); // scope 3 at $DIR/reference_prop.rs:+6:16: +6:18 + _8 = (); // scope 3 at $DIR/reference_prop.rs:+6:16: +6:18 + _7 = opaque::<()>(move _8) -> bb1; // scope 3 at $DIR/reference_prop.rs:+6:9: +6:19 + // mir::Constant + // + span: $DIR/reference_prop.rs:16:9: 16:15 + // + literal: Const { ty: fn(()) {opaque::<()>}, val: Value(<ZST>) } + } + + bb1: { + StorageDead(_8); // scope 3 at $DIR/reference_prop.rs:+6:18: +6:19 + StorageDead(_7); // scope 3 at $DIR/reference_prop.rs:+6:19: +6:20 +- _3 = const (); // scope 0 at $DIR/reference_prop.rs:+2:5: +7:6 + StorageDead(_6); // scope 2 at $DIR/reference_prop.rs:+7:5: +7:6 + StorageDead(_5); // scope 1 at $DIR/reference_prop.rs:+7:5: +7:6 + StorageDead(_4); // scope 0 at $DIR/reference_prop.rs:+7:5: +7:6 +- StorageDead(_3); // scope 0 at $DIR/reference_prop.rs:+7:5: +7:6 +- StorageLive(_9); // scope 0 at $DIR/reference_prop.rs:+10:5: +18:6 + StorageLive(_10); // scope 0 at $DIR/reference_prop.rs:+11:13: +11:14 + _10 = const 5_usize; // scope 0 at $DIR/reference_prop.rs:+11:17: +11:24 + StorageLive(_11); // scope 4 at $DIR/reference_prop.rs:+12:13: +12:15 + _11 = const 7_usize; // scope 4 at $DIR/reference_prop.rs:+12:18: +12:25 + StorageLive(_12); // scope 5 at $DIR/reference_prop.rs:+13:13: +13:18 + _12 = &_10; // scope 5 at $DIR/reference_prop.rs:+13:21: +13:23 + StorageLive(_13); // scope 6 at $DIR/reference_prop.rs:+14:13: +14:16 +- StorageLive(_14); // scope 6 at $DIR/reference_prop.rs:+14:13: +14:16 +- _14 = &_11; // scope 6 at $DIR/reference_prop.rs:+14:13: +14:16 +- _13 = &(*_14); // scope 6 at $DIR/reference_prop.rs:+14:13: +14:16 ++ _13 = &_11; // scope 6 at $DIR/reference_prop.rs:+14:13: +14:16 + _12 = move _13; // scope 6 at $DIR/reference_prop.rs:+14:9: +14:16 + StorageDead(_13); // scope 6 at $DIR/reference_prop.rs:+14:15: +14:16 +- StorageDead(_14); // scope 6 at $DIR/reference_prop.rs:+14:16: +14:17 + StorageLive(_15); // scope 6 at $DIR/reference_prop.rs:+16:13: +16:14 + _15 = (*_12); // scope 6 at $DIR/reference_prop.rs:+16:17: +16:19 + StorageLive(_16); // scope 7 at $DIR/reference_prop.rs:+17:9: +17:19 + StorageLive(_17); // scope 7 at $DIR/reference_prop.rs:+17:16: +17:18 + _17 = (); // scope 7 at $DIR/reference_prop.rs:+17:16: +17:18 + _16 = opaque::<()>(move _17) -> bb2; // scope 7 at $DIR/reference_prop.rs:+17:9: +17:19 + // mir::Constant + // + span: $DIR/reference_prop.rs:27:9: 27:15 + // + literal: Const { ty: fn(()) {opaque::<()>}, val: Value(<ZST>) } + } + + bb2: { + StorageDead(_17); // scope 7 at $DIR/reference_prop.rs:+17:18: +17:19 + StorageDead(_16); // scope 7 at $DIR/reference_prop.rs:+17:19: +17:20 +- _9 = const (); // scope 0 at $DIR/reference_prop.rs:+10:5: +18:6 + StorageDead(_15); // scope 6 at $DIR/reference_prop.rs:+18:5: +18:6 + StorageDead(_12); // scope 5 at $DIR/reference_prop.rs:+18:5: +18:6 + StorageDead(_11); // scope 4 at $DIR/reference_prop.rs:+18:5: +18:6 + StorageDead(_10); // scope 0 at $DIR/reference_prop.rs:+18:5: +18:6 +- StorageDead(_9); // scope 0 at $DIR/reference_prop.rs:+18:5: +18:6 +- StorageLive(_18); // scope 0 at $DIR/reference_prop.rs:+21:5: +27:6 + StorageLive(_19); // scope 0 at $DIR/reference_prop.rs:+22:13: +22:14 + _19 = const 5_usize; // scope 0 at $DIR/reference_prop.rs:+22:17: +22:24 + StorageLive(_20); // scope 8 at $DIR/reference_prop.rs:+23:13: +23:14 + _20 = &_19; // scope 8 at $DIR/reference_prop.rs:+23:17: +23:19 + StorageLive(_21); // scope 9 at $DIR/reference_prop.rs:+24:13: +24:14 + _21 = &_20; // scope 9 at $DIR/reference_prop.rs:+24:17: +24:19 + StorageLive(_22); // scope 10 at $DIR/reference_prop.rs:+25:13: +25:14 + _22 = (*_20); // scope 10 at $DIR/reference_prop.rs:+25:17: +25:19 + StorageLive(_23); // scope 11 at $DIR/reference_prop.rs:+26:9: +26:19 + StorageLive(_24); // scope 11 at $DIR/reference_prop.rs:+26:16: +26:18 + _24 = (); // scope 11 at $DIR/reference_prop.rs:+26:16: +26:18 + _23 = opaque::<()>(move _24) -> bb3; // scope 11 at $DIR/reference_prop.rs:+26:9: +26:19 + // mir::Constant + // + span: $DIR/reference_prop.rs:36:9: 36:15 + // + literal: Const { ty: fn(()) {opaque::<()>}, val: Value(<ZST>) } + } + + bb3: { + StorageDead(_24); // scope 11 at $DIR/reference_prop.rs:+26:18: +26:19 + StorageDead(_23); // scope 11 at $DIR/reference_prop.rs:+26:19: +26:20 +- _18 = const (); // scope 0 at $DIR/reference_prop.rs:+21:5: +27:6 + StorageDead(_22); // scope 10 at $DIR/reference_prop.rs:+27:5: +27:6 + StorageDead(_21); // scope 9 at $DIR/reference_prop.rs:+27:5: +27:6 + StorageDead(_20); // scope 8 at $DIR/reference_prop.rs:+27:5: +27:6 + StorageDead(_19); // scope 0 at $DIR/reference_prop.rs:+27:5: +27:6 +- StorageDead(_18); // scope 0 at $DIR/reference_prop.rs:+27:5: +27:6 +- StorageLive(_25); // scope 0 at $DIR/reference_prop.rs:+30:5: +36:6 + StorageLive(_26); // scope 0 at $DIR/reference_prop.rs:+31:13: +31:14 + _26 = const 5_usize; // scope 0 at $DIR/reference_prop.rs:+31:17: +31:24 + StorageLive(_27); // scope 12 at $DIR/reference_prop.rs:+32:13: +32:18 + _27 = &_26; // scope 12 at $DIR/reference_prop.rs:+32:21: +32:23 + StorageLive(_28); // scope 13 at $DIR/reference_prop.rs:+33:13: +33:14 + _28 = &mut _27; // scope 13 at $DIR/reference_prop.rs:+33:17: +33:23 + StorageLive(_29); // scope 14 at $DIR/reference_prop.rs:+34:13: +34:14 + _29 = (*_27); // scope 14 at $DIR/reference_prop.rs:+34:17: +34:19 + StorageLive(_30); // scope 15 at $DIR/reference_prop.rs:+35:9: +35:19 + StorageLive(_31); // scope 15 at $DIR/reference_prop.rs:+35:16: +35:18 + _31 = (); // scope 15 at $DIR/reference_prop.rs:+35:16: +35:18 + _30 = opaque::<()>(move _31) -> bb4; // scope 15 at $DIR/reference_prop.rs:+35:9: +35:19 + // mir::Constant + // + span: $DIR/reference_prop.rs:45:9: 45:15 + // + literal: Const { ty: fn(()) {opaque::<()>}, val: Value(<ZST>) } + } + + bb4: { + StorageDead(_31); // scope 15 at $DIR/reference_prop.rs:+35:18: +35:19 + StorageDead(_30); // scope 15 at $DIR/reference_prop.rs:+35:19: +35:20 +- _25 = const (); // scope 0 at $DIR/reference_prop.rs:+30:5: +36:6 + StorageDead(_29); // scope 14 at $DIR/reference_prop.rs:+36:5: +36:6 + StorageDead(_28); // scope 13 at $DIR/reference_prop.rs:+36:5: +36:6 + StorageDead(_27); // scope 12 at $DIR/reference_prop.rs:+36:5: +36:6 + StorageDead(_26); // scope 0 at $DIR/reference_prop.rs:+36:5: +36:6 +- StorageDead(_25); // scope 0 at $DIR/reference_prop.rs:+36:5: +36:6 +- StorageLive(_32); // scope 0 at $DIR/reference_prop.rs:+39:5: +44:6 + StorageLive(_33); // scope 0 at $DIR/reference_prop.rs:+40:13: +40:14 + _33 = const 7_usize; // scope 0 at $DIR/reference_prop.rs:+40:17: +40:24 + StorageLive(_34); // scope 16 at $DIR/reference_prop.rs:+41:13: +41:14 + _34 = &_33; // scope 16 at $DIR/reference_prop.rs:+41:17: +41:19 + StorageLive(_35); // scope 17 at $DIR/reference_prop.rs:+42:13: +42:14 +- _35 = (*_34); // scope 17 at $DIR/reference_prop.rs:+42:17: +42:19 ++ _35 = _33; // scope 17 at $DIR/reference_prop.rs:+42:17: +42:19 + StorageLive(_36); // scope 18 at $DIR/reference_prop.rs:+43:9: +43:18 + StorageLive(_37); // scope 18 at $DIR/reference_prop.rs:+43:16: +43:17 + _37 = _34; // scope 18 at $DIR/reference_prop.rs:+43:16: +43:17 + _36 = opaque::<&usize>(move _37) -> bb5; // scope 18 at $DIR/reference_prop.rs:+43:9: +43:18 + // mir::Constant + // + span: $DIR/reference_prop.rs:53:9: 53:15 + // + literal: Const { ty: fn(&usize) {opaque::<&usize>}, val: Value(<ZST>) } + } + + bb5: { + StorageDead(_37); // scope 18 at $DIR/reference_prop.rs:+43:17: +43:18 + StorageDead(_36); // scope 18 at $DIR/reference_prop.rs:+43:18: +43:19 +- _32 = const (); // scope 0 at $DIR/reference_prop.rs:+39:5: +44:6 + StorageDead(_35); // scope 17 at $DIR/reference_prop.rs:+44:5: +44:6 + StorageDead(_34); // scope 16 at $DIR/reference_prop.rs:+44:5: +44:6 + StorageDead(_33); // scope 0 at $DIR/reference_prop.rs:+44:5: +44:6 +- StorageDead(_32); // scope 0 at $DIR/reference_prop.rs:+44:5: +44:6 +- StorageLive(_38); // scope 0 at $DIR/reference_prop.rs:+47:5: +57:6 + StorageLive(_39); // scope 0 at $DIR/reference_prop.rs:+48:13: +48:14 + _39 = const 7_usize; // scope 0 at $DIR/reference_prop.rs:+48:17: +48:24 + StorageLive(_40); // scope 19 at $DIR/reference_prop.rs:+49:13: +49:15 + _40 = &_39; // scope 19 at $DIR/reference_prop.rs:+49:18: +49:20 + StorageLive(_41); // scope 20 at $DIR/reference_prop.rs:+50:13: +50:14 +- _41 = (*_40); // scope 20 at $DIR/reference_prop.rs:+50:17: +50:20 ++ _41 = _39; // scope 20 at $DIR/reference_prop.rs:+50:17: +50:20 + StorageLive(_42); // scope 21 at $DIR/reference_prop.rs:+51:13: +51:15 + _42 = _40; // scope 21 at $DIR/reference_prop.rs:+51:18: +51:20 + StorageLive(_43); // scope 22 at $DIR/reference_prop.rs:+52:13: +52:15 +- _43 = (*_42); // scope 22 at $DIR/reference_prop.rs:+52:18: +52:21 ++ _43 = _39; // scope 22 at $DIR/reference_prop.rs:+52:18: +52:21 + StorageLive(_44); // scope 23 at $DIR/reference_prop.rs:+53:13: +53:15 + _44 = _42; // scope 23 at $DIR/reference_prop.rs:+53:18: +53:20 + StorageLive(_45); // scope 24 at $DIR/reference_prop.rs:+56:9: +56:19 + StorageLive(_46); // scope 24 at $DIR/reference_prop.rs:+56:16: +56:18 + _46 = _44; // scope 24 at $DIR/reference_prop.rs:+56:16: +56:18 + _45 = opaque::<&usize>(move _46) -> bb6; // scope 24 at $DIR/reference_prop.rs:+56:9: +56:19 + // mir::Constant + // + span: $DIR/reference_prop.rs:66:9: 66:15 + // + literal: Const { ty: fn(&usize) {opaque::<&usize>}, val: Value(<ZST>) } + } + + bb6: { + StorageDead(_46); // scope 24 at $DIR/reference_prop.rs:+56:18: +56:19 + StorageDead(_45); // scope 24 at $DIR/reference_prop.rs:+56:19: +56:20 +- _38 = const (); // scope 0 at $DIR/reference_prop.rs:+47:5: +57:6 + StorageDead(_44); // scope 23 at $DIR/reference_prop.rs:+57:5: +57:6 + StorageDead(_43); // scope 22 at $DIR/reference_prop.rs:+57:5: +57:6 + StorageDead(_42); // scope 21 at $DIR/reference_prop.rs:+57:5: +57:6 + StorageDead(_41); // scope 20 at $DIR/reference_prop.rs:+57:5: +57:6 + StorageDead(_40); // scope 19 at $DIR/reference_prop.rs:+57:5: +57:6 + StorageDead(_39); // scope 0 at $DIR/reference_prop.rs:+57:5: +57:6 +- StorageDead(_38); // scope 0 at $DIR/reference_prop.rs:+57:5: +57:6 +- StorageLive(_47); // scope 0 at $DIR/reference_prop.rs:+60:5: +64:6 + StorageLive(_48); // scope 0 at $DIR/reference_prop.rs:+61:13: +61:14 + _48 = &(*_1); // scope 0 at $DIR/reference_prop.rs:+61:17: +61:25 + StorageLive(_49); // scope 25 at $DIR/reference_prop.rs:+62:13: +62:14 +- _49 = (*_48); // scope 25 at $DIR/reference_prop.rs:+62:17: +62:19 ++ _49 = (*_1); // scope 25 at $DIR/reference_prop.rs:+62:17: +62:19 + StorageLive(_50); // scope 26 at $DIR/reference_prop.rs:+63:9: +63:19 + StorageLive(_51); // scope 26 at $DIR/reference_prop.rs:+63:16: +63:18 + _51 = (); // scope 26 at $DIR/reference_prop.rs:+63:16: +63:18 + _50 = opaque::<()>(move _51) -> bb7; // scope 26 at $DIR/reference_prop.rs:+63:9: +63:19 + // mir::Constant + // + span: $DIR/reference_prop.rs:73:9: 73:15 + // + literal: Const { ty: fn(()) {opaque::<()>}, val: Value(<ZST>) } + } + + bb7: { + StorageDead(_51); // scope 26 at $DIR/reference_prop.rs:+63:18: +63:19 + StorageDead(_50); // scope 26 at $DIR/reference_prop.rs:+63:19: +63:20 +- _47 = const (); // scope 0 at $DIR/reference_prop.rs:+60:5: +64:6 + StorageDead(_49); // scope 25 at $DIR/reference_prop.rs:+64:5: +64:6 + StorageDead(_48); // scope 0 at $DIR/reference_prop.rs:+64:5: +64:6 +- StorageDead(_47); // scope 0 at $DIR/reference_prop.rs:+64:5: +64:6 + StorageLive(_52); // scope 0 at $DIR/reference_prop.rs:+68:13: +68:14 + _52 = &(*_2); // scope 0 at $DIR/reference_prop.rs:+68:17: +68:27 + StorageLive(_53); // scope 27 at $DIR/reference_prop.rs:+69:20: +69:28 +- StorageLive(_54); // scope 27 at $DIR/reference_prop.rs:+69:20: +69:28 +- _54 = &(*_1); // scope 27 at $DIR/reference_prop.rs:+69:20: +69:28 +- _53 = &(*_54); // scope 27 at $DIR/reference_prop.rs:+69:20: +69:28 ++ _53 = &(*_1); // scope 27 at $DIR/reference_prop.rs:+69:20: +69:28 + _2 = move _53; // scope 27 at $DIR/reference_prop.rs:+69:9: +69:28 + StorageDead(_53); // scope 27 at $DIR/reference_prop.rs:+69:27: +69:28 +- StorageDead(_54); // scope 27 at $DIR/reference_prop.rs:+69:28: +69:29 + StorageLive(_55); // scope 27 at $DIR/reference_prop.rs:+70:13: +70:14 + _55 = (*_52); // scope 27 at $DIR/reference_prop.rs:+70:17: +70:19 + StorageLive(_56); // scope 28 at $DIR/reference_prop.rs:+71:9: +71:19 + StorageLive(_57); // scope 28 at $DIR/reference_prop.rs:+71:16: +71:18 + _57 = (); // scope 28 at $DIR/reference_prop.rs:+71:16: +71:18 + _56 = opaque::<()>(move _57) -> bb8; // scope 28 at $DIR/reference_prop.rs:+71:9: +71:19 + // mir::Constant + // + span: $DIR/reference_prop.rs:81:9: 81:15 + // + literal: Const { ty: fn(()) {opaque::<()>}, val: Value(<ZST>) } + } + + bb8: { + StorageDead(_57); // scope 28 at $DIR/reference_prop.rs:+71:18: +71:19 + StorageDead(_56); // scope 28 at $DIR/reference_prop.rs:+71:19: +71:20 + _0 = const (); // scope 0 at $DIR/reference_prop.rs:+67:5: +72:6 + StorageDead(_55); // scope 27 at $DIR/reference_prop.rs:+72:5: +72:6 + StorageDead(_52); // scope 0 at $DIR/reference_prop.rs:+72:5: +72:6 + return; // scope 0 at $DIR/reference_prop.rs:+73:2: +73:2 + } + } + diff --git a/tests/mir-opt/reference_prop.reference_propagation_const_ptr.ReferencePropagation.diff b/tests/mir-opt/reference_prop.reference_propagation_const_ptr.ReferencePropagation.diff new file mode 100644 index 00000000000..712727915d0 --- /dev/null +++ b/tests/mir-opt/reference_prop.reference_propagation_const_ptr.ReferencePropagation.diff @@ -0,0 +1,431 @@ +- // MIR for `reference_propagation_const_ptr` before ReferencePropagation ++ // MIR for `reference_propagation_const_ptr` after ReferencePropagation + + fn reference_propagation_const_ptr(_1: *const T, _2: *const T) -> () { + debug single => _1; // in scope 0 at $DIR/reference_prop.rs:+0:45: +0:51 + debug multiple => _2; // in scope 0 at $DIR/reference_prop.rs:+0:63: +0:75 + let mut _0: (); // return place in scope 0 at $DIR/reference_prop.rs:+0:87: +0:87 + let _3: (); // in scope 0 at $DIR/reference_prop.rs:+2:5: +7:6 + let _7: (); // in scope 0 at $DIR/reference_prop.rs:+6:9: +6:19 + let mut _8: (); // in scope 0 at $DIR/reference_prop.rs:+6:16: +6:18 + let _9: (); // in scope 0 at $DIR/reference_prop.rs:+10:5: +18:6 + let mut _13: *const usize; // in scope 0 at $DIR/reference_prop.rs:+14:13: +14:26 + let _15: (); // in scope 0 at $DIR/reference_prop.rs:+17:9: +17:19 + let mut _16: (); // in scope 0 at $DIR/reference_prop.rs:+17:16: +17:18 + let _17: (); // in scope 0 at $DIR/reference_prop.rs:+21:5: +27:6 + let _22: (); // in scope 0 at $DIR/reference_prop.rs:+26:9: +26:19 + let mut _23: (); // in scope 0 at $DIR/reference_prop.rs:+26:16: +26:18 + let _24: (); // in scope 0 at $DIR/reference_prop.rs:+30:5: +36:6 + let _29: (); // in scope 0 at $DIR/reference_prop.rs:+35:9: +35:19 + let mut _30: (); // in scope 0 at $DIR/reference_prop.rs:+35:16: +35:18 + let _31: (); // in scope 0 at $DIR/reference_prop.rs:+39:5: +44:6 + let _35: (); // in scope 0 at $DIR/reference_prop.rs:+43:9: +43:18 + let mut _36: *const usize; // in scope 0 at $DIR/reference_prop.rs:+43:16: +43:17 + let _37: (); // in scope 0 at $DIR/reference_prop.rs:+47:5: +57:6 + let _44: (); // in scope 0 at $DIR/reference_prop.rs:+56:9: +56:19 + let mut _45: *const usize; // in scope 0 at $DIR/reference_prop.rs:+56:16: +56:18 + let _46: (); // in scope 0 at $DIR/reference_prop.rs:+60:5: +64:6 + let _49: (); // in scope 0 at $DIR/reference_prop.rs:+63:9: +63:19 + let mut _50: (); // in scope 0 at $DIR/reference_prop.rs:+63:16: +63:18 + let _51: (); // in scope 0 at $DIR/reference_prop.rs:+67:5: +72:6 + let mut _53: *const T; // in scope 0 at $DIR/reference_prop.rs:+69:20: +69:38 + let _55: (); // in scope 0 at $DIR/reference_prop.rs:+71:9: +71:19 + let mut _56: (); // in scope 0 at $DIR/reference_prop.rs:+71:16: +71:18 + let _61: (); // in scope 0 at $DIR/reference_prop.rs:+80:9: +80:19 + let mut _62: (); // in scope 0 at $DIR/reference_prop.rs:+80:16: +80:18 + scope 1 { + let _4: usize; // in scope 1 at $DIR/reference_prop.rs:+3:13: +3:14 + scope 2 { + debug a => _4; // in scope 2 at $DIR/reference_prop.rs:+3:13: +3:14 + let _5: *const usize; // in scope 2 at $DIR/reference_prop.rs:+4:13: +4:14 + scope 3 { + debug b => _5; // in scope 3 at $DIR/reference_prop.rs:+4:13: +4:14 + let _6: usize; // in scope 3 at $DIR/reference_prop.rs:+5:13: +5:14 + scope 4 { + debug c => _6; // in scope 4 at $DIR/reference_prop.rs:+5:13: +5:14 + } + } + } + } + scope 5 { + let _10: usize; // in scope 5 at $DIR/reference_prop.rs:+11:13: +11:14 + scope 6 { + debug a => _10; // in scope 6 at $DIR/reference_prop.rs:+11:13: +11:14 + let _11: usize; // in scope 6 at $DIR/reference_prop.rs:+12:13: +12:15 + scope 7 { + debug a2 => _11; // in scope 7 at $DIR/reference_prop.rs:+12:13: +12:15 + let mut _12: *const usize; // in scope 7 at $DIR/reference_prop.rs:+13:13: +13:18 + scope 8 { + debug b => _12; // in scope 8 at $DIR/reference_prop.rs:+13:13: +13:18 + let _14: usize; // in scope 8 at $DIR/reference_prop.rs:+16:13: +16:14 + scope 9 { + debug c => _14; // in scope 9 at $DIR/reference_prop.rs:+16:13: +16:14 + } + } + } + } + } + scope 10 { + let _18: usize; // in scope 10 at $DIR/reference_prop.rs:+22:13: +22:14 + scope 11 { + debug a => _18; // in scope 11 at $DIR/reference_prop.rs:+22:13: +22:14 + let _19: *const usize; // in scope 11 at $DIR/reference_prop.rs:+23:13: +23:14 + scope 12 { + debug b => _19; // in scope 12 at $DIR/reference_prop.rs:+23:13: +23:14 + let _20: &*const usize; // in scope 12 at $DIR/reference_prop.rs:+24:13: +24:14 + scope 13 { + debug d => _20; // in scope 13 at $DIR/reference_prop.rs:+24:13: +24:14 + let _21: usize; // in scope 13 at $DIR/reference_prop.rs:+25:13: +25:14 + scope 14 { + debug c => _21; // in scope 14 at $DIR/reference_prop.rs:+25:13: +25:14 + } + } + } + } + } + scope 15 { + let _25: usize; // in scope 15 at $DIR/reference_prop.rs:+31:13: +31:14 + scope 16 { + debug a => _25; // in scope 16 at $DIR/reference_prop.rs:+31:13: +31:14 + let mut _26: *const usize; // in scope 16 at $DIR/reference_prop.rs:+32:13: +32:18 + scope 17 { + debug b => _26; // in scope 17 at $DIR/reference_prop.rs:+32:13: +32:18 + let _27: &mut *const usize; // in scope 17 at $DIR/reference_prop.rs:+33:13: +33:14 + scope 18 { + debug d => _27; // in scope 18 at $DIR/reference_prop.rs:+33:13: +33:14 + let _28: usize; // in scope 18 at $DIR/reference_prop.rs:+34:13: +34:14 + scope 19 { + debug c => _28; // in scope 19 at $DIR/reference_prop.rs:+34:13: +34:14 + } + } + } + } + } + scope 20 { + let _32: usize; // in scope 20 at $DIR/reference_prop.rs:+40:13: +40:14 + scope 21 { + debug a => _32; // in scope 21 at $DIR/reference_prop.rs:+40:13: +40:14 + let _33: *const usize; // in scope 21 at $DIR/reference_prop.rs:+41:13: +41:14 + scope 22 { + debug b => _33; // in scope 22 at $DIR/reference_prop.rs:+41:13: +41:14 + let _34: usize; // in scope 22 at $DIR/reference_prop.rs:+42:13: +42:14 + scope 23 { + debug c => _34; // in scope 23 at $DIR/reference_prop.rs:+42:13: +42:14 + } + } + } + } + scope 24 { + let _38: usize; // in scope 24 at $DIR/reference_prop.rs:+48:13: +48:14 + scope 25 { + debug a => _38; // in scope 25 at $DIR/reference_prop.rs:+48:13: +48:14 + let _39: *const usize; // in scope 25 at $DIR/reference_prop.rs:+49:13: +49:15 + scope 26 { + debug b1 => _39; // in scope 26 at $DIR/reference_prop.rs:+49:13: +49:15 + let _40: usize; // in scope 26 at $DIR/reference_prop.rs:+50:13: +50:14 + scope 27 { + debug c => _40; // in scope 27 at $DIR/reference_prop.rs:+50:13: +50:14 + let _41: *const usize; // in scope 27 at $DIR/reference_prop.rs:+51:13: +51:15 + scope 28 { + debug b2 => _41; // in scope 28 at $DIR/reference_prop.rs:+51:13: +51:15 + let _42: usize; // in scope 28 at $DIR/reference_prop.rs:+52:13: +52:15 + scope 29 { + debug c2 => _42; // in scope 29 at $DIR/reference_prop.rs:+52:13: +52:15 + let _43: *const usize; // in scope 29 at $DIR/reference_prop.rs:+53:13: +53:15 + scope 30 { + debug b3 => _43; // in scope 30 at $DIR/reference_prop.rs:+53:13: +53:15 + } + } + } + } + } + } + } + scope 31 { + let _47: *const T; // in scope 31 at $DIR/reference_prop.rs:+61:13: +61:14 + scope 32 { + debug a => _47; // in scope 32 at $DIR/reference_prop.rs:+61:13: +61:14 + let _48: T; // in scope 32 at $DIR/reference_prop.rs:+62:13: +62:14 + scope 33 { + debug b => _48; // in scope 33 at $DIR/reference_prop.rs:+62:13: +62:14 + } + } + } + scope 34 { + let _52: *const T; // in scope 34 at $DIR/reference_prop.rs:+68:13: +68:14 + scope 35 { + debug a => _52; // in scope 35 at $DIR/reference_prop.rs:+68:13: +68:14 + let _54: T; // in scope 35 at $DIR/reference_prop.rs:+70:13: +70:14 + scope 36 { + debug b => _54; // in scope 36 at $DIR/reference_prop.rs:+70:13: +70:14 + } + } + } + scope 37 { + let _57: usize; // in scope 37 at $DIR/reference_prop.rs:+76:13: +76:14 + scope 38 { + debug a => _57; // in scope 38 at $DIR/reference_prop.rs:+76:13: +76:14 + let _58: *const usize; // in scope 38 at $DIR/reference_prop.rs:+77:13: +77:14 + scope 39 { + debug b => _58; // in scope 39 at $DIR/reference_prop.rs:+77:13: +77:14 + let _59: *const usize; // in scope 39 at $DIR/reference_prop.rs:+78:13: +78:14 + scope 40 { + debug c => _59; // in scope 40 at $DIR/reference_prop.rs:+78:13: +78:14 + let _60: usize; // in scope 40 at $DIR/reference_prop.rs:+79:13: +79:14 + scope 41 { + debug e => _60; // in scope 41 at $DIR/reference_prop.rs:+79:13: +79:14 + } + } + } + } + } + + bb0: { +- StorageLive(_3); // scope 0 at $DIR/reference_prop.rs:+2:5: +7:6 + StorageLive(_4); // scope 1 at $DIR/reference_prop.rs:+3:13: +3:14 + _4 = const 5_usize; // scope 1 at $DIR/reference_prop.rs:+3:17: +3:24 + StorageLive(_5); // scope 2 at $DIR/reference_prop.rs:+4:13: +4:14 + _5 = &raw const _4; // scope 2 at $DIR/reference_prop.rs:+4:17: +4:29 + StorageLive(_6); // scope 3 at $DIR/reference_prop.rs:+5:13: +5:14 +- _6 = (*_5); // scope 3 at $DIR/reference_prop.rs:+5:17: +5:19 ++ _6 = _4; // scope 3 at $DIR/reference_prop.rs:+5:17: +5:19 + StorageLive(_7); // scope 4 at $DIR/reference_prop.rs:+6:9: +6:19 + StorageLive(_8); // scope 4 at $DIR/reference_prop.rs:+6:16: +6:18 + _8 = (); // scope 4 at $DIR/reference_prop.rs:+6:16: +6:18 + _7 = opaque::<()>(move _8) -> bb1; // scope 4 at $DIR/reference_prop.rs:+6:9: +6:19 + // mir::Constant + // + span: $DIR/reference_prop.rs:166:9: 166:15 + // + literal: Const { ty: fn(()) {opaque::<()>}, val: Value(<ZST>) } + } + + bb1: { + StorageDead(_8); // scope 4 at $DIR/reference_prop.rs:+6:18: +6:19 + StorageDead(_7); // scope 4 at $DIR/reference_prop.rs:+6:19: +6:20 +- _3 = const (); // scope 1 at $DIR/reference_prop.rs:+2:5: +7:6 + StorageDead(_6); // scope 3 at $DIR/reference_prop.rs:+7:5: +7:6 + StorageDead(_5); // scope 2 at $DIR/reference_prop.rs:+7:5: +7:6 + StorageDead(_4); // scope 1 at $DIR/reference_prop.rs:+7:5: +7:6 +- StorageDead(_3); // scope 0 at $DIR/reference_prop.rs:+7:5: +7:6 +- StorageLive(_9); // scope 0 at $DIR/reference_prop.rs:+10:5: +18:6 + StorageLive(_10); // scope 5 at $DIR/reference_prop.rs:+11:13: +11:14 + _10 = const 5_usize; // scope 5 at $DIR/reference_prop.rs:+11:17: +11:24 + StorageLive(_11); // scope 6 at $DIR/reference_prop.rs:+12:13: +12:15 + _11 = const 7_usize; // scope 6 at $DIR/reference_prop.rs:+12:18: +12:25 + StorageLive(_12); // scope 7 at $DIR/reference_prop.rs:+13:13: +13:18 + _12 = &raw const _10; // scope 7 at $DIR/reference_prop.rs:+13:21: +13:33 + StorageLive(_13); // scope 8 at $DIR/reference_prop.rs:+14:13: +14:26 + _13 = &raw const _11; // scope 8 at $DIR/reference_prop.rs:+14:13: +14:26 + _12 = move _13; // scope 8 at $DIR/reference_prop.rs:+14:9: +14:26 + StorageDead(_13); // scope 8 at $DIR/reference_prop.rs:+14:25: +14:26 + StorageLive(_14); // scope 8 at $DIR/reference_prop.rs:+16:13: +16:14 + _14 = (*_12); // scope 8 at $DIR/reference_prop.rs:+16:17: +16:19 + StorageLive(_15); // scope 9 at $DIR/reference_prop.rs:+17:9: +17:19 + StorageLive(_16); // scope 9 at $DIR/reference_prop.rs:+17:16: +17:18 + _16 = (); // scope 9 at $DIR/reference_prop.rs:+17:16: +17:18 + _15 = opaque::<()>(move _16) -> bb2; // scope 9 at $DIR/reference_prop.rs:+17:9: +17:19 + // mir::Constant + // + span: $DIR/reference_prop.rs:177:9: 177:15 + // + literal: Const { ty: fn(()) {opaque::<()>}, val: Value(<ZST>) } + } + + bb2: { + StorageDead(_16); // scope 9 at $DIR/reference_prop.rs:+17:18: +17:19 + StorageDead(_15); // scope 9 at $DIR/reference_prop.rs:+17:19: +17:20 +- _9 = const (); // scope 5 at $DIR/reference_prop.rs:+10:5: +18:6 + StorageDead(_14); // scope 8 at $DIR/reference_prop.rs:+18:5: +18:6 + StorageDead(_12); // scope 7 at $DIR/reference_prop.rs:+18:5: +18:6 + StorageDead(_11); // scope 6 at $DIR/reference_prop.rs:+18:5: +18:6 + StorageDead(_10); // scope 5 at $DIR/reference_prop.rs:+18:5: +18:6 +- StorageDead(_9); // scope 0 at $DIR/reference_prop.rs:+18:5: +18:6 +- StorageLive(_17); // scope 0 at $DIR/reference_prop.rs:+21:5: +27:6 + StorageLive(_18); // scope 10 at $DIR/reference_prop.rs:+22:13: +22:14 + _18 = const 5_usize; // scope 10 at $DIR/reference_prop.rs:+22:17: +22:24 + StorageLive(_19); // scope 11 at $DIR/reference_prop.rs:+23:13: +23:14 + _19 = &raw const _18; // scope 11 at $DIR/reference_prop.rs:+23:17: +23:29 + StorageLive(_20); // scope 12 at $DIR/reference_prop.rs:+24:13: +24:14 + _20 = &_19; // scope 12 at $DIR/reference_prop.rs:+24:17: +24:19 + StorageLive(_21); // scope 13 at $DIR/reference_prop.rs:+25:13: +25:14 + _21 = (*_19); // scope 13 at $DIR/reference_prop.rs:+25:17: +25:19 + StorageLive(_22); // scope 14 at $DIR/reference_prop.rs:+26:9: +26:19 + StorageLive(_23); // scope 14 at $DIR/reference_prop.rs:+26:16: +26:18 + _23 = (); // scope 14 at $DIR/reference_prop.rs:+26:16: +26:18 + _22 = opaque::<()>(move _23) -> bb3; // scope 14 at $DIR/reference_prop.rs:+26:9: +26:19 + // mir::Constant + // + span: $DIR/reference_prop.rs:186:9: 186:15 + // + literal: Const { ty: fn(()) {opaque::<()>}, val: Value(<ZST>) } + } + + bb3: { + StorageDead(_23); // scope 14 at $DIR/reference_prop.rs:+26:18: +26:19 + StorageDead(_22); // scope 14 at $DIR/reference_prop.rs:+26:19: +26:20 +- _17 = const (); // scope 10 at $DIR/reference_prop.rs:+21:5: +27:6 + StorageDead(_21); // scope 13 at $DIR/reference_prop.rs:+27:5: +27:6 + StorageDead(_20); // scope 12 at $DIR/reference_prop.rs:+27:5: +27:6 + StorageDead(_19); // scope 11 at $DIR/reference_prop.rs:+27:5: +27:6 + StorageDead(_18); // scope 10 at $DIR/reference_prop.rs:+27:5: +27:6 +- StorageDead(_17); // scope 0 at $DIR/reference_prop.rs:+27:5: +27:6 +- StorageLive(_24); // scope 0 at $DIR/reference_prop.rs:+30:5: +36:6 + StorageLive(_25); // scope 15 at $DIR/reference_prop.rs:+31:13: +31:14 + _25 = const 5_usize; // scope 15 at $DIR/reference_prop.rs:+31:17: +31:24 + StorageLive(_26); // scope 16 at $DIR/reference_prop.rs:+32:13: +32:18 + _26 = &raw const _25; // scope 16 at $DIR/reference_prop.rs:+32:21: +32:33 + StorageLive(_27); // scope 17 at $DIR/reference_prop.rs:+33:13: +33:14 + _27 = &mut _26; // scope 17 at $DIR/reference_prop.rs:+33:17: +33:23 + StorageLive(_28); // scope 18 at $DIR/reference_prop.rs:+34:13: +34:14 + _28 = (*_26); // scope 18 at $DIR/reference_prop.rs:+34:17: +34:19 + StorageLive(_29); // scope 19 at $DIR/reference_prop.rs:+35:9: +35:19 + StorageLive(_30); // scope 19 at $DIR/reference_prop.rs:+35:16: +35:18 + _30 = (); // scope 19 at $DIR/reference_prop.rs:+35:16: +35:18 + _29 = opaque::<()>(move _30) -> bb4; // scope 19 at $DIR/reference_prop.rs:+35:9: +35:19 + // mir::Constant + // + span: $DIR/reference_prop.rs:195:9: 195:15 + // + literal: Const { ty: fn(()) {opaque::<()>}, val: Value(<ZST>) } + } + + bb4: { + StorageDead(_30); // scope 19 at $DIR/reference_prop.rs:+35:18: +35:19 + StorageDead(_29); // scope 19 at $DIR/reference_prop.rs:+35:19: +35:20 +- _24 = const (); // scope 15 at $DIR/reference_prop.rs:+30:5: +36:6 + StorageDead(_28); // scope 18 at $DIR/reference_prop.rs:+36:5: +36:6 + StorageDead(_27); // scope 17 at $DIR/reference_prop.rs:+36:5: +36:6 + StorageDead(_26); // scope 16 at $DIR/reference_prop.rs:+36:5: +36:6 + StorageDead(_25); // scope 15 at $DIR/reference_prop.rs:+36:5: +36:6 +- StorageDead(_24); // scope 0 at $DIR/reference_prop.rs:+36:5: +36:6 +- StorageLive(_31); // scope 0 at $DIR/reference_prop.rs:+39:5: +44:6 + StorageLive(_32); // scope 20 at $DIR/reference_prop.rs:+40:13: +40:14 + _32 = const 7_usize; // scope 20 at $DIR/reference_prop.rs:+40:17: +40:24 + StorageLive(_33); // scope 21 at $DIR/reference_prop.rs:+41:13: +41:14 + _33 = &raw const _32; // scope 21 at $DIR/reference_prop.rs:+41:17: +41:29 + StorageLive(_34); // scope 22 at $DIR/reference_prop.rs:+42:13: +42:14 +- _34 = (*_33); // scope 22 at $DIR/reference_prop.rs:+42:17: +42:19 ++ _34 = _32; // scope 22 at $DIR/reference_prop.rs:+42:17: +42:19 + StorageLive(_35); // scope 23 at $DIR/reference_prop.rs:+43:9: +43:18 + StorageLive(_36); // scope 23 at $DIR/reference_prop.rs:+43:16: +43:17 + _36 = _33; // scope 23 at $DIR/reference_prop.rs:+43:16: +43:17 + _35 = opaque::<*const usize>(move _36) -> bb5; // scope 23 at $DIR/reference_prop.rs:+43:9: +43:18 + // mir::Constant + // + span: $DIR/reference_prop.rs:203:9: 203:15 + // + literal: Const { ty: fn(*const usize) {opaque::<*const usize>}, val: Value(<ZST>) } + } + + bb5: { + StorageDead(_36); // scope 23 at $DIR/reference_prop.rs:+43:17: +43:18 + StorageDead(_35); // scope 23 at $DIR/reference_prop.rs:+43:18: +43:19 +- _31 = const (); // scope 20 at $DIR/reference_prop.rs:+39:5: +44:6 + StorageDead(_34); // scope 22 at $DIR/reference_prop.rs:+44:5: +44:6 + StorageDead(_33); // scope 21 at $DIR/reference_prop.rs:+44:5: +44:6 + StorageDead(_32); // scope 20 at $DIR/reference_prop.rs:+44:5: +44:6 +- StorageDead(_31); // scope 0 at $DIR/reference_prop.rs:+44:5: +44:6 +- StorageLive(_37); // scope 0 at $DIR/reference_prop.rs:+47:5: +57:6 + StorageLive(_38); // scope 24 at $DIR/reference_prop.rs:+48:13: +48:14 + _38 = const 7_usize; // scope 24 at $DIR/reference_prop.rs:+48:17: +48:24 + StorageLive(_39); // scope 25 at $DIR/reference_prop.rs:+49:13: +49:15 + _39 = &raw const _38; // scope 25 at $DIR/reference_prop.rs:+49:18: +49:30 + StorageLive(_40); // scope 26 at $DIR/reference_prop.rs:+50:13: +50:14 +- _40 = (*_39); // scope 26 at $DIR/reference_prop.rs:+50:17: +50:20 ++ _40 = _38; // scope 26 at $DIR/reference_prop.rs:+50:17: +50:20 + StorageLive(_41); // scope 27 at $DIR/reference_prop.rs:+51:13: +51:15 + _41 = _39; // scope 27 at $DIR/reference_prop.rs:+51:18: +51:20 + StorageLive(_42); // scope 28 at $DIR/reference_prop.rs:+52:13: +52:15 +- _42 = (*_41); // scope 28 at $DIR/reference_prop.rs:+52:18: +52:21 ++ _42 = _38; // scope 28 at $DIR/reference_prop.rs:+52:18: +52:21 + StorageLive(_43); // scope 29 at $DIR/reference_prop.rs:+53:13: +53:15 + _43 = _41; // scope 29 at $DIR/reference_prop.rs:+53:18: +53:20 + StorageLive(_44); // scope 30 at $DIR/reference_prop.rs:+56:9: +56:19 + StorageLive(_45); // scope 30 at $DIR/reference_prop.rs:+56:16: +56:18 + _45 = _43; // scope 30 at $DIR/reference_prop.rs:+56:16: +56:18 + _44 = opaque::<*const usize>(move _45) -> bb6; // scope 30 at $DIR/reference_prop.rs:+56:9: +56:19 + // mir::Constant + // + span: $DIR/reference_prop.rs:216:9: 216:15 + // + literal: Const { ty: fn(*const usize) {opaque::<*const usize>}, val: Value(<ZST>) } + } + + bb6: { + StorageDead(_45); // scope 30 at $DIR/reference_prop.rs:+56:18: +56:19 + StorageDead(_44); // scope 30 at $DIR/reference_prop.rs:+56:19: +56:20 +- _37 = const (); // scope 24 at $DIR/reference_prop.rs:+47:5: +57:6 + StorageDead(_43); // scope 29 at $DIR/reference_prop.rs:+57:5: +57:6 + StorageDead(_42); // scope 28 at $DIR/reference_prop.rs:+57:5: +57:6 + StorageDead(_41); // scope 27 at $DIR/reference_prop.rs:+57:5: +57:6 + StorageDead(_40); // scope 26 at $DIR/reference_prop.rs:+57:5: +57:6 + StorageDead(_39); // scope 25 at $DIR/reference_prop.rs:+57:5: +57:6 + StorageDead(_38); // scope 24 at $DIR/reference_prop.rs:+57:5: +57:6 +- StorageDead(_37); // scope 0 at $DIR/reference_prop.rs:+57:5: +57:6 +- StorageLive(_46); // scope 0 at $DIR/reference_prop.rs:+60:5: +64:6 + StorageLive(_47); // scope 31 at $DIR/reference_prop.rs:+61:13: +61:14 + _47 = &raw const (*_1); // scope 31 at $DIR/reference_prop.rs:+61:17: +61:35 + StorageLive(_48); // scope 32 at $DIR/reference_prop.rs:+62:13: +62:14 +- _48 = (*_47); // scope 32 at $DIR/reference_prop.rs:+62:17: +62:19 ++ _48 = (*_1); // scope 32 at $DIR/reference_prop.rs:+62:17: +62:19 + StorageLive(_49); // scope 33 at $DIR/reference_prop.rs:+63:9: +63:19 + StorageLive(_50); // scope 33 at $DIR/reference_prop.rs:+63:16: +63:18 + _50 = (); // scope 33 at $DIR/reference_prop.rs:+63:16: +63:18 + _49 = opaque::<()>(move _50) -> bb7; // scope 33 at $DIR/reference_prop.rs:+63:9: +63:19 + // mir::Constant + // + span: $DIR/reference_prop.rs:223:9: 223:15 + // + literal: Const { ty: fn(()) {opaque::<()>}, val: Value(<ZST>) } + } + + bb7: { + StorageDead(_50); // scope 33 at $DIR/reference_prop.rs:+63:18: +63:19 + StorageDead(_49); // scope 33 at $DIR/reference_prop.rs:+63:19: +63:20 +- _46 = const (); // scope 31 at $DIR/reference_prop.rs:+60:5: +64:6 + StorageDead(_48); // scope 32 at $DIR/reference_prop.rs:+64:5: +64:6 + StorageDead(_47); // scope 31 at $DIR/reference_prop.rs:+64:5: +64:6 +- StorageDead(_46); // scope 0 at $DIR/reference_prop.rs:+64:5: +64:6 +- StorageLive(_51); // scope 0 at $DIR/reference_prop.rs:+67:5: +72:6 + StorageLive(_52); // scope 34 at $DIR/reference_prop.rs:+68:13: +68:14 + _52 = &raw const (*_2); // scope 34 at $DIR/reference_prop.rs:+68:17: +68:37 + StorageLive(_53); // scope 35 at $DIR/reference_prop.rs:+69:20: +69:38 + _53 = &raw const (*_1); // scope 35 at $DIR/reference_prop.rs:+69:20: +69:38 + _2 = move _53; // scope 35 at $DIR/reference_prop.rs:+69:9: +69:38 + StorageDead(_53); // scope 35 at $DIR/reference_prop.rs:+69:37: +69:38 + StorageLive(_54); // scope 35 at $DIR/reference_prop.rs:+70:13: +70:14 + _54 = (*_52); // scope 35 at $DIR/reference_prop.rs:+70:17: +70:19 + StorageLive(_55); // scope 36 at $DIR/reference_prop.rs:+71:9: +71:19 + StorageLive(_56); // scope 36 at $DIR/reference_prop.rs:+71:16: +71:18 + _56 = (); // scope 36 at $DIR/reference_prop.rs:+71:16: +71:18 + _55 = opaque::<()>(move _56) -> bb8; // scope 36 at $DIR/reference_prop.rs:+71:9: +71:19 + // mir::Constant + // + span: $DIR/reference_prop.rs:231:9: 231:15 + // + literal: Const { ty: fn(()) {opaque::<()>}, val: Value(<ZST>) } + } + + bb8: { + StorageDead(_56); // scope 36 at $DIR/reference_prop.rs:+71:18: +71:19 + StorageDead(_55); // scope 36 at $DIR/reference_prop.rs:+71:19: +71:20 +- _51 = const (); // scope 34 at $DIR/reference_prop.rs:+67:5: +72:6 + StorageDead(_54); // scope 35 at $DIR/reference_prop.rs:+72:5: +72:6 + StorageDead(_52); // scope 34 at $DIR/reference_prop.rs:+72:5: +72:6 +- StorageDead(_51); // scope 0 at $DIR/reference_prop.rs:+72:5: +72:6 + StorageLive(_57); // scope 37 at $DIR/reference_prop.rs:+76:13: +76:14 + _57 = const 13_usize; // scope 37 at $DIR/reference_prop.rs:+76:17: +76:25 + StorageLive(_58); // scope 38 at $DIR/reference_prop.rs:+77:13: +77:14 + _58 = &raw const _57; // scope 38 at $DIR/reference_prop.rs:+77:17: +77:29 + StorageLive(_59); // scope 39 at $DIR/reference_prop.rs:+78:13: +78:14 +- _59 = &raw const (*_58); // scope 39 at $DIR/reference_prop.rs:+78:17: +78:30 ++ _59 = &raw const _57; // scope 39 at $DIR/reference_prop.rs:+78:17: +78:30 + StorageLive(_60); // scope 40 at $DIR/reference_prop.rs:+79:13: +79:14 +- _60 = (*_59); // scope 40 at $DIR/reference_prop.rs:+79:17: +79:19 ++ _60 = _57; // scope 40 at $DIR/reference_prop.rs:+79:17: +79:19 + StorageLive(_61); // scope 41 at $DIR/reference_prop.rs:+80:9: +80:19 + StorageLive(_62); // scope 41 at $DIR/reference_prop.rs:+80:16: +80:18 + _62 = (); // scope 41 at $DIR/reference_prop.rs:+80:16: +80:18 + _61 = opaque::<()>(move _62) -> bb9; // scope 41 at $DIR/reference_prop.rs:+80:9: +80:19 + // mir::Constant + // + span: $DIR/reference_prop.rs:240:9: 240:15 + // + literal: Const { ty: fn(()) {opaque::<()>}, val: Value(<ZST>) } + } + + bb9: { + StorageDead(_62); // scope 41 at $DIR/reference_prop.rs:+80:18: +80:19 + StorageDead(_61); // scope 41 at $DIR/reference_prop.rs:+80:19: +80:20 + _0 = const (); // scope 37 at $DIR/reference_prop.rs:+75:5: +81:6 + StorageDead(_60); // scope 40 at $DIR/reference_prop.rs:+81:5: +81:6 + StorageDead(_59); // scope 39 at $DIR/reference_prop.rs:+81:5: +81:6 + StorageDead(_58); // scope 38 at $DIR/reference_prop.rs:+81:5: +81:6 + StorageDead(_57); // scope 37 at $DIR/reference_prop.rs:+81:5: +81:6 + return; // scope 0 at $DIR/reference_prop.rs:+82:2: +82:2 + } + } + diff --git a/tests/mir-opt/reference_prop.reference_propagation_mut.ReferencePropagation.diff b/tests/mir-opt/reference_prop.reference_propagation_mut.ReferencePropagation.diff new file mode 100644 index 00000000000..44ddbbc3066 --- /dev/null +++ b/tests/mir-opt/reference_prop.reference_propagation_mut.ReferencePropagation.diff @@ -0,0 +1,372 @@ +- // MIR for `reference_propagation_mut` before ReferencePropagation ++ // MIR for `reference_propagation_mut` after ReferencePropagation + + fn reference_propagation_mut(_1: &mut T, _2: &mut T) -> () { + debug single => _1; // in scope 0 at $DIR/reference_prop.rs:+0:43: +0:49 + debug multiple => _2; // in scope 0 at $DIR/reference_prop.rs:+0:62: +0:74 + let mut _0: (); // return place in scope 0 at $DIR/reference_prop.rs:+0:87: +0:87 + let _3: (); // in scope 0 at $DIR/reference_prop.rs:+2:5: +7:6 + let mut _4: usize; // in scope 0 at $DIR/reference_prop.rs:+3:13: +3:18 + let _7: (); // in scope 0 at $DIR/reference_prop.rs:+6:9: +6:19 + let mut _8: (); // in scope 0 at $DIR/reference_prop.rs:+6:16: +6:18 + let _9: (); // in scope 0 at $DIR/reference_prop.rs:+10:5: +18:6 + let mut _10: usize; // in scope 0 at $DIR/reference_prop.rs:+11:13: +11:18 + let mut _13: &mut usize; // in scope 0 at $DIR/reference_prop.rs:+14:13: +14:20 + let mut _14: &mut usize; // in scope 0 at $DIR/reference_prop.rs:+14:13: +14:20 + let _16: (); // in scope 0 at $DIR/reference_prop.rs:+17:9: +17:19 + let mut _17: (); // in scope 0 at $DIR/reference_prop.rs:+17:16: +17:18 + let _18: (); // in scope 0 at $DIR/reference_prop.rs:+21:5: +27:6 + let mut _19: usize; // in scope 0 at $DIR/reference_prop.rs:+22:13: +22:18 + let _23: (); // in scope 0 at $DIR/reference_prop.rs:+26:9: +26:19 + let mut _24: (); // in scope 0 at $DIR/reference_prop.rs:+26:16: +26:18 + let _25: (); // in scope 0 at $DIR/reference_prop.rs:+30:5: +36:6 + let mut _26: usize; // in scope 0 at $DIR/reference_prop.rs:+31:13: +31:18 + let _30: (); // in scope 0 at $DIR/reference_prop.rs:+35:9: +35:19 + let mut _31: (); // in scope 0 at $DIR/reference_prop.rs:+35:16: +35:18 + let _32: (); // in scope 0 at $DIR/reference_prop.rs:+39:5: +44:6 + let mut _33: usize; // in scope 0 at $DIR/reference_prop.rs:+40:13: +40:18 + let _36: (); // in scope 0 at $DIR/reference_prop.rs:+43:9: +43:18 + let mut _37: &mut usize; // in scope 0 at $DIR/reference_prop.rs:+43:16: +43:17 + let _38: (); // in scope 0 at $DIR/reference_prop.rs:+47:5: +57:6 + let mut _39: usize; // in scope 0 at $DIR/reference_prop.rs:+48:13: +48:18 + let _45: (); // in scope 0 at $DIR/reference_prop.rs:+56:9: +56:19 + let mut _46: &mut usize; // in scope 0 at $DIR/reference_prop.rs:+56:16: +56:18 + let _47: (); // in scope 0 at $DIR/reference_prop.rs:+60:5: +64:6 + let _48: &mut T; // in scope 0 at $DIR/reference_prop.rs:+61:13: +61:14 + let _50: (); // in scope 0 at $DIR/reference_prop.rs:+63:9: +63:19 + let mut _51: (); // in scope 0 at $DIR/reference_prop.rs:+63:16: +63:18 + let _52: &mut T; // in scope 0 at $DIR/reference_prop.rs:+68:13: +68:14 + let mut _53: &mut T; // in scope 0 at $DIR/reference_prop.rs:+69:20: +69:32 + let mut _54: &mut T; // in scope 0 at $DIR/reference_prop.rs:+69:20: +69:32 + let _56: (); // in scope 0 at $DIR/reference_prop.rs:+71:9: +71:19 + let mut _57: (); // in scope 0 at $DIR/reference_prop.rs:+71:16: +71:18 + scope 1 { + debug a => _4; // in scope 1 at $DIR/reference_prop.rs:+3:13: +3:18 + let _5: &mut usize; // in scope 1 at $DIR/reference_prop.rs:+4:13: +4:14 + scope 2 { + debug b => _5; // in scope 2 at $DIR/reference_prop.rs:+4:13: +4:14 + let _6: usize; // in scope 2 at $DIR/reference_prop.rs:+5:13: +5:14 + scope 3 { + debug c => _6; // in scope 3 at $DIR/reference_prop.rs:+5:13: +5:14 + } + } + } + scope 4 { + debug a => _10; // in scope 4 at $DIR/reference_prop.rs:+11:13: +11:18 + let mut _11: usize; // in scope 4 at $DIR/reference_prop.rs:+12:13: +12:19 + scope 5 { + debug a2 => _11; // in scope 5 at $DIR/reference_prop.rs:+12:13: +12:19 + let mut _12: &mut usize; // in scope 5 at $DIR/reference_prop.rs:+13:13: +13:18 + scope 6 { + debug b => _12; // in scope 6 at $DIR/reference_prop.rs:+13:13: +13:18 + let _15: usize; // in scope 6 at $DIR/reference_prop.rs:+16:13: +16:14 + scope 7 { + debug c => _15; // in scope 7 at $DIR/reference_prop.rs:+16:13: +16:14 + } + } + } + } + scope 8 { + debug a => _19; // in scope 8 at $DIR/reference_prop.rs:+22:13: +22:18 + let _20: &mut usize; // in scope 8 at $DIR/reference_prop.rs:+23:13: +23:14 + scope 9 { + debug b => _20; // in scope 9 at $DIR/reference_prop.rs:+23:13: +23:14 + let _21: &&mut usize; // in scope 9 at $DIR/reference_prop.rs:+24:13: +24:14 + scope 10 { + debug d => _21; // in scope 10 at $DIR/reference_prop.rs:+24:13: +24:14 + let _22: usize; // in scope 10 at $DIR/reference_prop.rs:+25:13: +25:14 + scope 11 { + debug c => _22; // in scope 11 at $DIR/reference_prop.rs:+25:13: +25:14 + } + } + } + } + scope 12 { + debug a => _26; // in scope 12 at $DIR/reference_prop.rs:+31:13: +31:18 + let mut _27: &mut usize; // in scope 12 at $DIR/reference_prop.rs:+32:13: +32:18 + scope 13 { + debug b => _27; // in scope 13 at $DIR/reference_prop.rs:+32:13: +32:18 + let _28: &mut &mut usize; // in scope 13 at $DIR/reference_prop.rs:+33:13: +33:14 + scope 14 { + debug d => _28; // in scope 14 at $DIR/reference_prop.rs:+33:13: +33:14 + let _29: usize; // in scope 14 at $DIR/reference_prop.rs:+34:13: +34:14 + scope 15 { + debug c => _29; // in scope 15 at $DIR/reference_prop.rs:+34:13: +34:14 + } + } + } + } + scope 16 { + debug a => _33; // in scope 16 at $DIR/reference_prop.rs:+40:13: +40:18 + let _34: &mut usize; // in scope 16 at $DIR/reference_prop.rs:+41:13: +41:14 + scope 17 { + debug b => _34; // in scope 17 at $DIR/reference_prop.rs:+41:13: +41:14 + let _35: usize; // in scope 17 at $DIR/reference_prop.rs:+42:13: +42:14 + scope 18 { + debug c => _35; // in scope 18 at $DIR/reference_prop.rs:+42:13: +42:14 + } + } + } + scope 19 { + debug a => _39; // in scope 19 at $DIR/reference_prop.rs:+48:13: +48:18 + let _40: &mut usize; // in scope 19 at $DIR/reference_prop.rs:+49:13: +49:15 + scope 20 { + debug b1 => _40; // in scope 20 at $DIR/reference_prop.rs:+49:13: +49:15 + let _41: usize; // in scope 20 at $DIR/reference_prop.rs:+50:13: +50:14 + scope 21 { + debug c => _41; // in scope 21 at $DIR/reference_prop.rs:+50:13: +50:14 + let _42: &mut usize; // in scope 21 at $DIR/reference_prop.rs:+51:13: +51:15 + scope 22 { + debug b2 => _42; // in scope 22 at $DIR/reference_prop.rs:+51:13: +51:15 + let _43: usize; // in scope 22 at $DIR/reference_prop.rs:+52:13: +52:15 + scope 23 { + debug c2 => _43; // in scope 23 at $DIR/reference_prop.rs:+52:13: +52:15 + let _44: &mut usize; // in scope 23 at $DIR/reference_prop.rs:+53:13: +53:15 + scope 24 { + debug b3 => _44; // in scope 24 at $DIR/reference_prop.rs:+53:13: +53:15 + } + } + } + } + } + } + scope 25 { + debug a => _48; // in scope 25 at $DIR/reference_prop.rs:+61:13: +61:14 + let _49: T; // in scope 25 at $DIR/reference_prop.rs:+62:13: +62:14 + scope 26 { + debug b => _49; // in scope 26 at $DIR/reference_prop.rs:+62:13: +62:14 + } + } + scope 27 { + debug a => _52; // in scope 27 at $DIR/reference_prop.rs:+68:13: +68:14 + let _55: T; // in scope 27 at $DIR/reference_prop.rs:+70:13: +70:14 + scope 28 { + debug b => _55; // in scope 28 at $DIR/reference_prop.rs:+70:13: +70:14 + } + } + + bb0: { +- StorageLive(_3); // scope 0 at $DIR/reference_prop.rs:+2:5: +7:6 + StorageLive(_4); // scope 0 at $DIR/reference_prop.rs:+3:13: +3:18 + _4 = const 5_usize; // scope 0 at $DIR/reference_prop.rs:+3:21: +3:28 + StorageLive(_5); // scope 1 at $DIR/reference_prop.rs:+4:13: +4:14 + _5 = &mut _4; // scope 1 at $DIR/reference_prop.rs:+4:17: +4:23 + StorageLive(_6); // scope 2 at $DIR/reference_prop.rs:+5:13: +5:14 +- _6 = (*_5); // scope 2 at $DIR/reference_prop.rs:+5:17: +5:19 ++ _6 = _4; // scope 2 at $DIR/reference_prop.rs:+5:17: +5:19 + StorageLive(_7); // scope 3 at $DIR/reference_prop.rs:+6:9: +6:19 + StorageLive(_8); // scope 3 at $DIR/reference_prop.rs:+6:16: +6:18 + _8 = (); // scope 3 at $DIR/reference_prop.rs:+6:16: +6:18 + _7 = opaque::<()>(move _8) -> bb1; // scope 3 at $DIR/reference_prop.rs:+6:9: +6:19 + // mir::Constant + // + span: $DIR/reference_prop.rs:91:9: 91:15 + // + literal: Const { ty: fn(()) {opaque::<()>}, val: Value(<ZST>) } + } + + bb1: { + StorageDead(_8); // scope 3 at $DIR/reference_prop.rs:+6:18: +6:19 + StorageDead(_7); // scope 3 at $DIR/reference_prop.rs:+6:19: +6:20 +- _3 = const (); // scope 0 at $DIR/reference_prop.rs:+2:5: +7:6 + StorageDead(_6); // scope 2 at $DIR/reference_prop.rs:+7:5: +7:6 + StorageDead(_5); // scope 1 at $DIR/reference_prop.rs:+7:5: +7:6 + StorageDead(_4); // scope 0 at $DIR/reference_prop.rs:+7:5: +7:6 +- StorageDead(_3); // scope 0 at $DIR/reference_prop.rs:+7:5: +7:6 +- StorageLive(_9); // scope 0 at $DIR/reference_prop.rs:+10:5: +18:6 + StorageLive(_10); // scope 0 at $DIR/reference_prop.rs:+11:13: +11:18 + _10 = const 5_usize; // scope 0 at $DIR/reference_prop.rs:+11:21: +11:28 + StorageLive(_11); // scope 4 at $DIR/reference_prop.rs:+12:13: +12:19 + _11 = const 7_usize; // scope 4 at $DIR/reference_prop.rs:+12:22: +12:29 + StorageLive(_12); // scope 5 at $DIR/reference_prop.rs:+13:13: +13:18 + _12 = &mut _10; // scope 5 at $DIR/reference_prop.rs:+13:21: +13:27 + StorageLive(_13); // scope 6 at $DIR/reference_prop.rs:+14:13: +14:20 +- StorageLive(_14); // scope 6 at $DIR/reference_prop.rs:+14:13: +14:20 +- _14 = &mut _11; // scope 6 at $DIR/reference_prop.rs:+14:13: +14:20 +- _13 = &mut (*_14); // scope 6 at $DIR/reference_prop.rs:+14:13: +14:20 ++ _13 = &mut _11; // scope 6 at $DIR/reference_prop.rs:+14:13: +14:20 + _12 = move _13; // scope 6 at $DIR/reference_prop.rs:+14:9: +14:20 + StorageDead(_13); // scope 6 at $DIR/reference_prop.rs:+14:19: +14:20 +- StorageDead(_14); // scope 6 at $DIR/reference_prop.rs:+14:20: +14:21 + StorageLive(_15); // scope 6 at $DIR/reference_prop.rs:+16:13: +16:14 + _15 = (*_12); // scope 6 at $DIR/reference_prop.rs:+16:17: +16:19 + StorageLive(_16); // scope 7 at $DIR/reference_prop.rs:+17:9: +17:19 + StorageLive(_17); // scope 7 at $DIR/reference_prop.rs:+17:16: +17:18 + _17 = (); // scope 7 at $DIR/reference_prop.rs:+17:16: +17:18 + _16 = opaque::<()>(move _17) -> bb2; // scope 7 at $DIR/reference_prop.rs:+17:9: +17:19 + // mir::Constant + // + span: $DIR/reference_prop.rs:102:9: 102:15 + // + literal: Const { ty: fn(()) {opaque::<()>}, val: Value(<ZST>) } + } + + bb2: { + StorageDead(_17); // scope 7 at $DIR/reference_prop.rs:+17:18: +17:19 + StorageDead(_16); // scope 7 at $DIR/reference_prop.rs:+17:19: +17:20 +- _9 = const (); // scope 0 at $DIR/reference_prop.rs:+10:5: +18:6 + StorageDead(_15); // scope 6 at $DIR/reference_prop.rs:+18:5: +18:6 + StorageDead(_12); // scope 5 at $DIR/reference_prop.rs:+18:5: +18:6 + StorageDead(_11); // scope 4 at $DIR/reference_prop.rs:+18:5: +18:6 + StorageDead(_10); // scope 0 at $DIR/reference_prop.rs:+18:5: +18:6 +- StorageDead(_9); // scope 0 at $DIR/reference_prop.rs:+18:5: +18:6 +- StorageLive(_18); // scope 0 at $DIR/reference_prop.rs:+21:5: +27:6 + StorageLive(_19); // scope 0 at $DIR/reference_prop.rs:+22:13: +22:18 + _19 = const 5_usize; // scope 0 at $DIR/reference_prop.rs:+22:21: +22:28 + StorageLive(_20); // scope 8 at $DIR/reference_prop.rs:+23:13: +23:14 + _20 = &mut _19; // scope 8 at $DIR/reference_prop.rs:+23:17: +23:23 + StorageLive(_21); // scope 9 at $DIR/reference_prop.rs:+24:13: +24:14 + _21 = &_20; // scope 9 at $DIR/reference_prop.rs:+24:17: +24:19 + StorageLive(_22); // scope 10 at $DIR/reference_prop.rs:+25:13: +25:14 + _22 = (*_20); // scope 10 at $DIR/reference_prop.rs:+25:17: +25:19 + StorageLive(_23); // scope 11 at $DIR/reference_prop.rs:+26:9: +26:19 + StorageLive(_24); // scope 11 at $DIR/reference_prop.rs:+26:16: +26:18 + _24 = (); // scope 11 at $DIR/reference_prop.rs:+26:16: +26:18 + _23 = opaque::<()>(move _24) -> bb3; // scope 11 at $DIR/reference_prop.rs:+26:9: +26:19 + // mir::Constant + // + span: $DIR/reference_prop.rs:111:9: 111:15 + // + literal: Const { ty: fn(()) {opaque::<()>}, val: Value(<ZST>) } + } + + bb3: { + StorageDead(_24); // scope 11 at $DIR/reference_prop.rs:+26:18: +26:19 + StorageDead(_23); // scope 11 at $DIR/reference_prop.rs:+26:19: +26:20 +- _18 = const (); // scope 0 at $DIR/reference_prop.rs:+21:5: +27:6 + StorageDead(_22); // scope 10 at $DIR/reference_prop.rs:+27:5: +27:6 + StorageDead(_21); // scope 9 at $DIR/reference_prop.rs:+27:5: +27:6 + StorageDead(_20); // scope 8 at $DIR/reference_prop.rs:+27:5: +27:6 + StorageDead(_19); // scope 0 at $DIR/reference_prop.rs:+27:5: +27:6 +- StorageDead(_18); // scope 0 at $DIR/reference_prop.rs:+27:5: +27:6 +- StorageLive(_25); // scope 0 at $DIR/reference_prop.rs:+30:5: +36:6 + StorageLive(_26); // scope 0 at $DIR/reference_prop.rs:+31:13: +31:18 + _26 = const 5_usize; // scope 0 at $DIR/reference_prop.rs:+31:21: +31:28 + StorageLive(_27); // scope 12 at $DIR/reference_prop.rs:+32:13: +32:18 + _27 = &mut _26; // scope 12 at $DIR/reference_prop.rs:+32:21: +32:27 + StorageLive(_28); // scope 13 at $DIR/reference_prop.rs:+33:13: +33:14 + _28 = &mut _27; // scope 13 at $DIR/reference_prop.rs:+33:17: +33:23 + StorageLive(_29); // scope 14 at $DIR/reference_prop.rs:+34:13: +34:14 + _29 = (*_27); // scope 14 at $DIR/reference_prop.rs:+34:17: +34:19 + StorageLive(_30); // scope 15 at $DIR/reference_prop.rs:+35:9: +35:19 + StorageLive(_31); // scope 15 at $DIR/reference_prop.rs:+35:16: +35:18 + _31 = (); // scope 15 at $DIR/reference_prop.rs:+35:16: +35:18 + _30 = opaque::<()>(move _31) -> bb4; // scope 15 at $DIR/reference_prop.rs:+35:9: +35:19 + // mir::Constant + // + span: $DIR/reference_prop.rs:120:9: 120:15 + // + literal: Const { ty: fn(()) {opaque::<()>}, val: Value(<ZST>) } + } + + bb4: { + StorageDead(_31); // scope 15 at $DIR/reference_prop.rs:+35:18: +35:19 + StorageDead(_30); // scope 15 at $DIR/reference_prop.rs:+35:19: +35:20 +- _25 = const (); // scope 0 at $DIR/reference_prop.rs:+30:5: +36:6 + StorageDead(_29); // scope 14 at $DIR/reference_prop.rs:+36:5: +36:6 + StorageDead(_28); // scope 13 at $DIR/reference_prop.rs:+36:5: +36:6 + StorageDead(_27); // scope 12 at $DIR/reference_prop.rs:+36:5: +36:6 + StorageDead(_26); // scope 0 at $DIR/reference_prop.rs:+36:5: +36:6 +- StorageDead(_25); // scope 0 at $DIR/reference_prop.rs:+36:5: +36:6 +- StorageLive(_32); // scope 0 at $DIR/reference_prop.rs:+39:5: +44:6 + StorageLive(_33); // scope 0 at $DIR/reference_prop.rs:+40:13: +40:18 + _33 = const 7_usize; // scope 0 at $DIR/reference_prop.rs:+40:21: +40:28 + StorageLive(_34); // scope 16 at $DIR/reference_prop.rs:+41:13: +41:14 + _34 = &mut _33; // scope 16 at $DIR/reference_prop.rs:+41:17: +41:23 + StorageLive(_35); // scope 17 at $DIR/reference_prop.rs:+42:13: +42:14 + _35 = (*_34); // scope 17 at $DIR/reference_prop.rs:+42:17: +42:19 + StorageLive(_36); // scope 18 at $DIR/reference_prop.rs:+43:9: +43:18 + StorageLive(_37); // scope 18 at $DIR/reference_prop.rs:+43:16: +43:17 + _37 = move _34; // scope 18 at $DIR/reference_prop.rs:+43:16: +43:17 + _36 = opaque::<&mut usize>(move _37) -> bb5; // scope 18 at $DIR/reference_prop.rs:+43:9: +43:18 + // mir::Constant + // + span: $DIR/reference_prop.rs:128:9: 128:15 + // + literal: Const { ty: fn(&mut usize) {opaque::<&mut usize>}, val: Value(<ZST>) } + } + + bb5: { + StorageDead(_37); // scope 18 at $DIR/reference_prop.rs:+43:17: +43:18 + StorageDead(_36); // scope 18 at $DIR/reference_prop.rs:+43:18: +43:19 +- _32 = const (); // scope 0 at $DIR/reference_prop.rs:+39:5: +44:6 + StorageDead(_35); // scope 17 at $DIR/reference_prop.rs:+44:5: +44:6 + StorageDead(_34); // scope 16 at $DIR/reference_prop.rs:+44:5: +44:6 + StorageDead(_33); // scope 0 at $DIR/reference_prop.rs:+44:5: +44:6 +- StorageDead(_32); // scope 0 at $DIR/reference_prop.rs:+44:5: +44:6 +- StorageLive(_38); // scope 0 at $DIR/reference_prop.rs:+47:5: +57:6 + StorageLive(_39); // scope 0 at $DIR/reference_prop.rs:+48:13: +48:18 + _39 = const 7_usize; // scope 0 at $DIR/reference_prop.rs:+48:21: +48:28 + StorageLive(_40); // scope 19 at $DIR/reference_prop.rs:+49:13: +49:15 + _40 = &mut _39; // scope 19 at $DIR/reference_prop.rs:+49:18: +49:24 + StorageLive(_41); // scope 20 at $DIR/reference_prop.rs:+50:13: +50:14 + _41 = (*_40); // scope 20 at $DIR/reference_prop.rs:+50:17: +50:20 + StorageLive(_42); // scope 21 at $DIR/reference_prop.rs:+51:13: +51:15 + _42 = move _40; // scope 21 at $DIR/reference_prop.rs:+51:18: +51:20 + StorageLive(_43); // scope 22 at $DIR/reference_prop.rs:+52:13: +52:15 + _43 = (*_42); // scope 22 at $DIR/reference_prop.rs:+52:18: +52:21 + StorageLive(_44); // scope 23 at $DIR/reference_prop.rs:+53:13: +53:15 + _44 = move _42; // scope 23 at $DIR/reference_prop.rs:+53:18: +53:20 + StorageLive(_45); // scope 24 at $DIR/reference_prop.rs:+56:9: +56:19 + StorageLive(_46); // scope 24 at $DIR/reference_prop.rs:+56:16: +56:18 + _46 = move _44; // scope 24 at $DIR/reference_prop.rs:+56:16: +56:18 + _45 = opaque::<&mut usize>(move _46) -> bb6; // scope 24 at $DIR/reference_prop.rs:+56:9: +56:19 + // mir::Constant + // + span: $DIR/reference_prop.rs:141:9: 141:15 + // + literal: Const { ty: fn(&mut usize) {opaque::<&mut usize>}, val: Value(<ZST>) } + } + + bb6: { + StorageDead(_46); // scope 24 at $DIR/reference_prop.rs:+56:18: +56:19 + StorageDead(_45); // scope 24 at $DIR/reference_prop.rs:+56:19: +56:20 +- _38 = const (); // scope 0 at $DIR/reference_prop.rs:+47:5: +57:6 + StorageDead(_44); // scope 23 at $DIR/reference_prop.rs:+57:5: +57:6 + StorageDead(_43); // scope 22 at $DIR/reference_prop.rs:+57:5: +57:6 + StorageDead(_42); // scope 21 at $DIR/reference_prop.rs:+57:5: +57:6 + StorageDead(_41); // scope 20 at $DIR/reference_prop.rs:+57:5: +57:6 + StorageDead(_40); // scope 19 at $DIR/reference_prop.rs:+57:5: +57:6 + StorageDead(_39); // scope 0 at $DIR/reference_prop.rs:+57:5: +57:6 +- StorageDead(_38); // scope 0 at $DIR/reference_prop.rs:+57:5: +57:6 +- StorageLive(_47); // scope 0 at $DIR/reference_prop.rs:+60:5: +64:6 + StorageLive(_48); // scope 0 at $DIR/reference_prop.rs:+61:13: +61:14 + _48 = &mut (*_1); // scope 0 at $DIR/reference_prop.rs:+61:17: +61:29 + StorageLive(_49); // scope 25 at $DIR/reference_prop.rs:+62:13: +62:14 +- _49 = (*_48); // scope 25 at $DIR/reference_prop.rs:+62:17: +62:19 ++ _49 = (*_1); // scope 25 at $DIR/reference_prop.rs:+62:17: +62:19 + StorageLive(_50); // scope 26 at $DIR/reference_prop.rs:+63:9: +63:19 + StorageLive(_51); // scope 26 at $DIR/reference_prop.rs:+63:16: +63:18 + _51 = (); // scope 26 at $DIR/reference_prop.rs:+63:16: +63:18 + _50 = opaque::<()>(move _51) -> bb7; // scope 26 at $DIR/reference_prop.rs:+63:9: +63:19 + // mir::Constant + // + span: $DIR/reference_prop.rs:148:9: 148:15 + // + literal: Const { ty: fn(()) {opaque::<()>}, val: Value(<ZST>) } + } + + bb7: { + StorageDead(_51); // scope 26 at $DIR/reference_prop.rs:+63:18: +63:19 + StorageDead(_50); // scope 26 at $DIR/reference_prop.rs:+63:19: +63:20 +- _47 = const (); // scope 0 at $DIR/reference_prop.rs:+60:5: +64:6 + StorageDead(_49); // scope 25 at $DIR/reference_prop.rs:+64:5: +64:6 + StorageDead(_48); // scope 0 at $DIR/reference_prop.rs:+64:5: +64:6 +- StorageDead(_47); // scope 0 at $DIR/reference_prop.rs:+64:5: +64:6 + StorageLive(_52); // scope 0 at $DIR/reference_prop.rs:+68:13: +68:14 + _52 = &mut (*_2); // scope 0 at $DIR/reference_prop.rs:+68:17: +68:31 + StorageLive(_53); // scope 27 at $DIR/reference_prop.rs:+69:20: +69:32 +- StorageLive(_54); // scope 27 at $DIR/reference_prop.rs:+69:20: +69:32 +- _54 = &mut (*_1); // scope 27 at $DIR/reference_prop.rs:+69:20: +69:32 +- _53 = &mut (*_54); // scope 27 at $DIR/reference_prop.rs:+69:20: +69:32 ++ _53 = &mut (*_1); // scope 27 at $DIR/reference_prop.rs:+69:20: +69:32 + _2 = move _53; // scope 27 at $DIR/reference_prop.rs:+69:9: +69:32 + StorageDead(_53); // scope 27 at $DIR/reference_prop.rs:+69:31: +69:32 +- StorageDead(_54); // scope 27 at $DIR/reference_prop.rs:+69:32: +69:33 + StorageLive(_55); // scope 27 at $DIR/reference_prop.rs:+70:13: +70:14 + _55 = (*_52); // scope 27 at $DIR/reference_prop.rs:+70:17: +70:19 + StorageLive(_56); // scope 28 at $DIR/reference_prop.rs:+71:9: +71:19 + StorageLive(_57); // scope 28 at $DIR/reference_prop.rs:+71:16: +71:18 + _57 = (); // scope 28 at $DIR/reference_prop.rs:+71:16: +71:18 + _56 = opaque::<()>(move _57) -> bb8; // scope 28 at $DIR/reference_prop.rs:+71:9: +71:19 + // mir::Constant + // + span: $DIR/reference_prop.rs:156:9: 156:15 + // + literal: Const { ty: fn(()) {opaque::<()>}, val: Value(<ZST>) } + } + + bb8: { + StorageDead(_57); // scope 28 at $DIR/reference_prop.rs:+71:18: +71:19 + StorageDead(_56); // scope 28 at $DIR/reference_prop.rs:+71:19: +71:20 + _0 = const (); // scope 0 at $DIR/reference_prop.rs:+67:5: +72:6 + StorageDead(_55); // scope 27 at $DIR/reference_prop.rs:+72:5: +72:6 + StorageDead(_52); // scope 0 at $DIR/reference_prop.rs:+72:5: +72:6 + return; // scope 0 at $DIR/reference_prop.rs:+73:2: +73:2 + } + } + diff --git a/tests/mir-opt/reference_prop.reference_propagation_mut_ptr.ReferencePropagation.diff b/tests/mir-opt/reference_prop.reference_propagation_mut_ptr.ReferencePropagation.diff new file mode 100644 index 00000000000..c55b5eb4bed --- /dev/null +++ b/tests/mir-opt/reference_prop.reference_propagation_mut_ptr.ReferencePropagation.diff @@ -0,0 +1,378 @@ +- // MIR for `reference_propagation_mut_ptr` before ReferencePropagation ++ // MIR for `reference_propagation_mut_ptr` after ReferencePropagation + + fn reference_propagation_mut_ptr(_1: *mut T, _2: *mut T) -> () { + debug single => _1; // in scope 0 at $DIR/reference_prop.rs:+0:43: +0:49 + debug multiple => _2; // in scope 0 at $DIR/reference_prop.rs:+0:59: +0:71 + let mut _0: (); // return place in scope 0 at $DIR/reference_prop.rs:+0:81: +0:81 + let _3: (); // in scope 0 at $DIR/reference_prop.rs:+2:5: +7:6 + let _7: (); // in scope 0 at $DIR/reference_prop.rs:+6:9: +6:19 + let mut _8: (); // in scope 0 at $DIR/reference_prop.rs:+6:16: +6:18 + let _9: (); // in scope 0 at $DIR/reference_prop.rs:+10:5: +18:6 + let mut _13: *mut usize; // in scope 0 at $DIR/reference_prop.rs:+14:13: +14:24 + let _15: (); // in scope 0 at $DIR/reference_prop.rs:+17:9: +17:19 + let mut _16: (); // in scope 0 at $DIR/reference_prop.rs:+17:16: +17:18 + let _17: (); // in scope 0 at $DIR/reference_prop.rs:+21:5: +27:6 + let _22: (); // in scope 0 at $DIR/reference_prop.rs:+26:9: +26:19 + let mut _23: (); // in scope 0 at $DIR/reference_prop.rs:+26:16: +26:18 + let _24: (); // in scope 0 at $DIR/reference_prop.rs:+30:5: +36:6 + let _29: (); // in scope 0 at $DIR/reference_prop.rs:+35:9: +35:19 + let mut _30: (); // in scope 0 at $DIR/reference_prop.rs:+35:16: +35:18 + let _31: (); // in scope 0 at $DIR/reference_prop.rs:+39:5: +44:6 + let _35: (); // in scope 0 at $DIR/reference_prop.rs:+43:9: +43:18 + let mut _36: *mut usize; // in scope 0 at $DIR/reference_prop.rs:+43:16: +43:17 + let _37: (); // in scope 0 at $DIR/reference_prop.rs:+47:5: +57:6 + let _44: (); // in scope 0 at $DIR/reference_prop.rs:+56:9: +56:19 + let mut _45: *mut usize; // in scope 0 at $DIR/reference_prop.rs:+56:16: +56:18 + let _46: (); // in scope 0 at $DIR/reference_prop.rs:+60:5: +64:6 + let _49: (); // in scope 0 at $DIR/reference_prop.rs:+63:9: +63:19 + let mut _50: (); // in scope 0 at $DIR/reference_prop.rs:+63:16: +63:18 + let mut _52: *mut T; // in scope 0 at $DIR/reference_prop.rs:+69:20: +69:36 + let _54: (); // in scope 0 at $DIR/reference_prop.rs:+71:9: +71:19 + let mut _55: (); // in scope 0 at $DIR/reference_prop.rs:+71:16: +71:18 + scope 1 { + let mut _4: usize; // in scope 1 at $DIR/reference_prop.rs:+3:13: +3:18 + scope 2 { + debug a => _4; // in scope 2 at $DIR/reference_prop.rs:+3:13: +3:18 + let _5: *mut usize; // in scope 2 at $DIR/reference_prop.rs:+4:13: +4:14 + scope 3 { + debug b => _5; // in scope 3 at $DIR/reference_prop.rs:+4:13: +4:14 + let _6: usize; // in scope 3 at $DIR/reference_prop.rs:+5:13: +5:14 + scope 4 { + debug c => _6; // in scope 4 at $DIR/reference_prop.rs:+5:13: +5:14 + } + } + } + } + scope 5 { + let mut _10: usize; // in scope 5 at $DIR/reference_prop.rs:+11:13: +11:18 + scope 6 { + debug a => _10; // in scope 6 at $DIR/reference_prop.rs:+11:13: +11:18 + let mut _11: usize; // in scope 6 at $DIR/reference_prop.rs:+12:13: +12:19 + scope 7 { + debug a2 => _11; // in scope 7 at $DIR/reference_prop.rs:+12:13: +12:19 + let mut _12: *mut usize; // in scope 7 at $DIR/reference_prop.rs:+13:13: +13:18 + scope 8 { + debug b => _12; // in scope 8 at $DIR/reference_prop.rs:+13:13: +13:18 + let _14: usize; // in scope 8 at $DIR/reference_prop.rs:+16:13: +16:14 + scope 9 { + debug c => _14; // in scope 9 at $DIR/reference_prop.rs:+16:13: +16:14 + } + } + } + } + } + scope 10 { + let mut _18: usize; // in scope 10 at $DIR/reference_prop.rs:+22:13: +22:18 + scope 11 { + debug a => _18; // in scope 11 at $DIR/reference_prop.rs:+22:13: +22:18 + let _19: *mut usize; // in scope 11 at $DIR/reference_prop.rs:+23:13: +23:14 + scope 12 { + debug b => _19; // in scope 12 at $DIR/reference_prop.rs:+23:13: +23:14 + let _20: &*mut usize; // in scope 12 at $DIR/reference_prop.rs:+24:13: +24:14 + scope 13 { + debug d => _20; // in scope 13 at $DIR/reference_prop.rs:+24:13: +24:14 + let _21: usize; // in scope 13 at $DIR/reference_prop.rs:+25:13: +25:14 + scope 14 { + debug c => _21; // in scope 14 at $DIR/reference_prop.rs:+25:13: +25:14 + } + } + } + } + } + scope 15 { + let mut _25: usize; // in scope 15 at $DIR/reference_prop.rs:+31:13: +31:18 + scope 16 { + debug a => _25; // in scope 16 at $DIR/reference_prop.rs:+31:13: +31:18 + let mut _26: *mut usize; // in scope 16 at $DIR/reference_prop.rs:+32:13: +32:18 + scope 17 { + debug b => _26; // in scope 17 at $DIR/reference_prop.rs:+32:13: +32:18 + let _27: &mut *mut usize; // in scope 17 at $DIR/reference_prop.rs:+33:13: +33:14 + scope 18 { + debug d => _27; // in scope 18 at $DIR/reference_prop.rs:+33:13: +33:14 + let _28: usize; // in scope 18 at $DIR/reference_prop.rs:+34:13: +34:14 + scope 19 { + debug c => _28; // in scope 19 at $DIR/reference_prop.rs:+34:13: +34:14 + } + } + } + } + } + scope 20 { + let mut _32: usize; // in scope 20 at $DIR/reference_prop.rs:+40:13: +40:18 + scope 21 { + debug a => _32; // in scope 21 at $DIR/reference_prop.rs:+40:13: +40:18 + let _33: *mut usize; // in scope 21 at $DIR/reference_prop.rs:+41:13: +41:14 + scope 22 { + debug b => _33; // in scope 22 at $DIR/reference_prop.rs:+41:13: +41:14 + let _34: usize; // in scope 22 at $DIR/reference_prop.rs:+42:13: +42:14 + scope 23 { + debug c => _34; // in scope 23 at $DIR/reference_prop.rs:+42:13: +42:14 + } + } + } + } + scope 24 { + let mut _38: usize; // in scope 24 at $DIR/reference_prop.rs:+48:13: +48:18 + scope 25 { + debug a => _38; // in scope 25 at $DIR/reference_prop.rs:+48:13: +48:18 + let _39: *mut usize; // in scope 25 at $DIR/reference_prop.rs:+49:13: +49:15 + scope 26 { + debug b1 => _39; // in scope 26 at $DIR/reference_prop.rs:+49:13: +49:15 + let _40: usize; // in scope 26 at $DIR/reference_prop.rs:+50:13: +50:14 + scope 27 { + debug c => _40; // in scope 27 at $DIR/reference_prop.rs:+50:13: +50:14 + let _41: *mut usize; // in scope 27 at $DIR/reference_prop.rs:+51:13: +51:15 + scope 28 { + debug b2 => _41; // in scope 28 at $DIR/reference_prop.rs:+51:13: +51:15 + let _42: usize; // in scope 28 at $DIR/reference_prop.rs:+52:13: +52:15 + scope 29 { + debug c2 => _42; // in scope 29 at $DIR/reference_prop.rs:+52:13: +52:15 + let _43: *mut usize; // in scope 29 at $DIR/reference_prop.rs:+53:13: +53:15 + scope 30 { + debug b3 => _43; // in scope 30 at $DIR/reference_prop.rs:+53:13: +53:15 + } + } + } + } + } + } + } + scope 31 { + let _47: *mut T; // in scope 31 at $DIR/reference_prop.rs:+61:13: +61:14 + scope 32 { + debug a => _47; // in scope 32 at $DIR/reference_prop.rs:+61:13: +61:14 + let _48: T; // in scope 32 at $DIR/reference_prop.rs:+62:13: +62:14 + scope 33 { + debug b => _48; // in scope 33 at $DIR/reference_prop.rs:+62:13: +62:14 + } + } + } + scope 34 { + let _51: *mut T; // in scope 34 at $DIR/reference_prop.rs:+68:13: +68:14 + scope 35 { + debug a => _51; // in scope 35 at $DIR/reference_prop.rs:+68:13: +68:14 + let _53: T; // in scope 35 at $DIR/reference_prop.rs:+70:13: +70:14 + scope 36 { + debug b => _53; // in scope 36 at $DIR/reference_prop.rs:+70:13: +70:14 + } + } + } + + bb0: { +- StorageLive(_3); // scope 0 at $DIR/reference_prop.rs:+2:5: +7:6 + StorageLive(_4); // scope 1 at $DIR/reference_prop.rs:+3:13: +3:18 + _4 = const 5_usize; // scope 1 at $DIR/reference_prop.rs:+3:21: +3:28 + StorageLive(_5); // scope 2 at $DIR/reference_prop.rs:+4:13: +4:14 + _5 = &raw mut _4; // scope 2 at $DIR/reference_prop.rs:+4:17: +4:27 + StorageLive(_6); // scope 3 at $DIR/reference_prop.rs:+5:13: +5:14 +- _6 = (*_5); // scope 3 at $DIR/reference_prop.rs:+5:17: +5:19 ++ _6 = _4; // scope 3 at $DIR/reference_prop.rs:+5:17: +5:19 + StorageLive(_7); // scope 4 at $DIR/reference_prop.rs:+6:9: +6:19 + StorageLive(_8); // scope 4 at $DIR/reference_prop.rs:+6:16: +6:18 + _8 = (); // scope 4 at $DIR/reference_prop.rs:+6:16: +6:18 + _7 = opaque::<()>(move _8) -> bb1; // scope 4 at $DIR/reference_prop.rs:+6:9: +6:19 + // mir::Constant + // + span: $DIR/reference_prop.rs:250:9: 250:15 + // + literal: Const { ty: fn(()) {opaque::<()>}, val: Value(<ZST>) } + } + + bb1: { + StorageDead(_8); // scope 4 at $DIR/reference_prop.rs:+6:18: +6:19 + StorageDead(_7); // scope 4 at $DIR/reference_prop.rs:+6:19: +6:20 +- _3 = const (); // scope 1 at $DIR/reference_prop.rs:+2:5: +7:6 + StorageDead(_6); // scope 3 at $DIR/reference_prop.rs:+7:5: +7:6 + StorageDead(_5); // scope 2 at $DIR/reference_prop.rs:+7:5: +7:6 + StorageDead(_4); // scope 1 at $DIR/reference_prop.rs:+7:5: +7:6 +- StorageDead(_3); // scope 0 at $DIR/reference_prop.rs:+7:5: +7:6 +- StorageLive(_9); // scope 0 at $DIR/reference_prop.rs:+10:5: +18:6 + StorageLive(_10); // scope 5 at $DIR/reference_prop.rs:+11:13: +11:18 + _10 = const 5_usize; // scope 5 at $DIR/reference_prop.rs:+11:21: +11:28 + StorageLive(_11); // scope 6 at $DIR/reference_prop.rs:+12:13: +12:19 + _11 = const 7_usize; // scope 6 at $DIR/reference_prop.rs:+12:22: +12:29 + StorageLive(_12); // scope 7 at $DIR/reference_prop.rs:+13:13: +13:18 + _12 = &raw mut _10; // scope 7 at $DIR/reference_prop.rs:+13:21: +13:31 + StorageLive(_13); // scope 8 at $DIR/reference_prop.rs:+14:13: +14:24 + _13 = &raw mut _11; // scope 8 at $DIR/reference_prop.rs:+14:13: +14:24 + _12 = move _13; // scope 8 at $DIR/reference_prop.rs:+14:9: +14:24 + StorageDead(_13); // scope 8 at $DIR/reference_prop.rs:+14:23: +14:24 + StorageLive(_14); // scope 8 at $DIR/reference_prop.rs:+16:13: +16:14 + _14 = (*_12); // scope 8 at $DIR/reference_prop.rs:+16:17: +16:19 + StorageLive(_15); // scope 9 at $DIR/reference_prop.rs:+17:9: +17:19 + StorageLive(_16); // scope 9 at $DIR/reference_prop.rs:+17:16: +17:18 + _16 = (); // scope 9 at $DIR/reference_prop.rs:+17:16: +17:18 + _15 = opaque::<()>(move _16) -> bb2; // scope 9 at $DIR/reference_prop.rs:+17:9: +17:19 + // mir::Constant + // + span: $DIR/reference_prop.rs:261:9: 261:15 + // + literal: Const { ty: fn(()) {opaque::<()>}, val: Value(<ZST>) } + } + + bb2: { + StorageDead(_16); // scope 9 at $DIR/reference_prop.rs:+17:18: +17:19 + StorageDead(_15); // scope 9 at $DIR/reference_prop.rs:+17:19: +17:20 +- _9 = const (); // scope 5 at $DIR/reference_prop.rs:+10:5: +18:6 + StorageDead(_14); // scope 8 at $DIR/reference_prop.rs:+18:5: +18:6 + StorageDead(_12); // scope 7 at $DIR/reference_prop.rs:+18:5: +18:6 + StorageDead(_11); // scope 6 at $DIR/reference_prop.rs:+18:5: +18:6 + StorageDead(_10); // scope 5 at $DIR/reference_prop.rs:+18:5: +18:6 +- StorageDead(_9); // scope 0 at $DIR/reference_prop.rs:+18:5: +18:6 +- StorageLive(_17); // scope 0 at $DIR/reference_prop.rs:+21:5: +27:6 + StorageLive(_18); // scope 10 at $DIR/reference_prop.rs:+22:13: +22:18 + _18 = const 5_usize; // scope 10 at $DIR/reference_prop.rs:+22:21: +22:28 + StorageLive(_19); // scope 11 at $DIR/reference_prop.rs:+23:13: +23:14 + _19 = &raw mut _18; // scope 11 at $DIR/reference_prop.rs:+23:17: +23:27 + StorageLive(_20); // scope 12 at $DIR/reference_prop.rs:+24:13: +24:14 + _20 = &_19; // scope 12 at $DIR/reference_prop.rs:+24:17: +24:19 + StorageLive(_21); // scope 13 at $DIR/reference_prop.rs:+25:13: +25:14 + _21 = (*_19); // scope 13 at $DIR/reference_prop.rs:+25:17: +25:19 + StorageLive(_22); // scope 14 at $DIR/reference_prop.rs:+26:9: +26:19 + StorageLive(_23); // scope 14 at $DIR/reference_prop.rs:+26:16: +26:18 + _23 = (); // scope 14 at $DIR/reference_prop.rs:+26:16: +26:18 + _22 = opaque::<()>(move _23) -> bb3; // scope 14 at $DIR/reference_prop.rs:+26:9: +26:19 + // mir::Constant + // + span: $DIR/reference_prop.rs:270:9: 270:15 + // + literal: Const { ty: fn(()) {opaque::<()>}, val: Value(<ZST>) } + } + + bb3: { + StorageDead(_23); // scope 14 at $DIR/reference_prop.rs:+26:18: +26:19 + StorageDead(_22); // scope 14 at $DIR/reference_prop.rs:+26:19: +26:20 +- _17 = const (); // scope 10 at $DIR/reference_prop.rs:+21:5: +27:6 + StorageDead(_21); // scope 13 at $DIR/reference_prop.rs:+27:5: +27:6 + StorageDead(_20); // scope 12 at $DIR/reference_prop.rs:+27:5: +27:6 + StorageDead(_19); // scope 11 at $DIR/reference_prop.rs:+27:5: +27:6 + StorageDead(_18); // scope 10 at $DIR/reference_prop.rs:+27:5: +27:6 +- StorageDead(_17); // scope 0 at $DIR/reference_prop.rs:+27:5: +27:6 +- StorageLive(_24); // scope 0 at $DIR/reference_prop.rs:+30:5: +36:6 + StorageLive(_25); // scope 15 at $DIR/reference_prop.rs:+31:13: +31:18 + _25 = const 5_usize; // scope 15 at $DIR/reference_prop.rs:+31:21: +31:28 + StorageLive(_26); // scope 16 at $DIR/reference_prop.rs:+32:13: +32:18 + _26 = &raw mut _25; // scope 16 at $DIR/reference_prop.rs:+32:21: +32:31 + StorageLive(_27); // scope 17 at $DIR/reference_prop.rs:+33:13: +33:14 + _27 = &mut _26; // scope 17 at $DIR/reference_prop.rs:+33:17: +33:23 + StorageLive(_28); // scope 18 at $DIR/reference_prop.rs:+34:13: +34:14 + _28 = (*_26); // scope 18 at $DIR/reference_prop.rs:+34:17: +34:19 + StorageLive(_29); // scope 19 at $DIR/reference_prop.rs:+35:9: +35:19 + StorageLive(_30); // scope 19 at $DIR/reference_prop.rs:+35:16: +35:18 + _30 = (); // scope 19 at $DIR/reference_prop.rs:+35:16: +35:18 + _29 = opaque::<()>(move _30) -> bb4; // scope 19 at $DIR/reference_prop.rs:+35:9: +35:19 + // mir::Constant + // + span: $DIR/reference_prop.rs:279:9: 279:15 + // + literal: Const { ty: fn(()) {opaque::<()>}, val: Value(<ZST>) } + } + + bb4: { + StorageDead(_30); // scope 19 at $DIR/reference_prop.rs:+35:18: +35:19 + StorageDead(_29); // scope 19 at $DIR/reference_prop.rs:+35:19: +35:20 +- _24 = const (); // scope 15 at $DIR/reference_prop.rs:+30:5: +36:6 + StorageDead(_28); // scope 18 at $DIR/reference_prop.rs:+36:5: +36:6 + StorageDead(_27); // scope 17 at $DIR/reference_prop.rs:+36:5: +36:6 + StorageDead(_26); // scope 16 at $DIR/reference_prop.rs:+36:5: +36:6 + StorageDead(_25); // scope 15 at $DIR/reference_prop.rs:+36:5: +36:6 +- StorageDead(_24); // scope 0 at $DIR/reference_prop.rs:+36:5: +36:6 +- StorageLive(_31); // scope 0 at $DIR/reference_prop.rs:+39:5: +44:6 + StorageLive(_32); // scope 20 at $DIR/reference_prop.rs:+40:13: +40:18 + _32 = const 7_usize; // scope 20 at $DIR/reference_prop.rs:+40:21: +40:28 + StorageLive(_33); // scope 21 at $DIR/reference_prop.rs:+41:13: +41:14 + _33 = &raw mut _32; // scope 21 at $DIR/reference_prop.rs:+41:17: +41:27 + StorageLive(_34); // scope 22 at $DIR/reference_prop.rs:+42:13: +42:14 + _34 = (*_33); // scope 22 at $DIR/reference_prop.rs:+42:17: +42:19 + StorageLive(_35); // scope 23 at $DIR/reference_prop.rs:+43:9: +43:18 + StorageLive(_36); // scope 23 at $DIR/reference_prop.rs:+43:16: +43:17 + _36 = _33; // scope 23 at $DIR/reference_prop.rs:+43:16: +43:17 + _35 = opaque::<*mut usize>(move _36) -> bb5; // scope 23 at $DIR/reference_prop.rs:+43:9: +43:18 + // mir::Constant + // + span: $DIR/reference_prop.rs:287:9: 287:15 + // + literal: Const { ty: fn(*mut usize) {opaque::<*mut usize>}, val: Value(<ZST>) } + } + + bb5: { + StorageDead(_36); // scope 23 at $DIR/reference_prop.rs:+43:17: +43:18 + StorageDead(_35); // scope 23 at $DIR/reference_prop.rs:+43:18: +43:19 +- _31 = const (); // scope 20 at $DIR/reference_prop.rs:+39:5: +44:6 + StorageDead(_34); // scope 22 at $DIR/reference_prop.rs:+44:5: +44:6 + StorageDead(_33); // scope 21 at $DIR/reference_prop.rs:+44:5: +44:6 + StorageDead(_32); // scope 20 at $DIR/reference_prop.rs:+44:5: +44:6 +- StorageDead(_31); // scope 0 at $DIR/reference_prop.rs:+44:5: +44:6 +- StorageLive(_37); // scope 0 at $DIR/reference_prop.rs:+47:5: +57:6 + StorageLive(_38); // scope 24 at $DIR/reference_prop.rs:+48:13: +48:18 + _38 = const 7_usize; // scope 24 at $DIR/reference_prop.rs:+48:21: +48:28 + StorageLive(_39); // scope 25 at $DIR/reference_prop.rs:+49:13: +49:15 + _39 = &raw mut _38; // scope 25 at $DIR/reference_prop.rs:+49:18: +49:28 + StorageLive(_40); // scope 26 at $DIR/reference_prop.rs:+50:13: +50:14 + _40 = (*_39); // scope 26 at $DIR/reference_prop.rs:+50:17: +50:20 + StorageLive(_41); // scope 27 at $DIR/reference_prop.rs:+51:13: +51:15 + _41 = _39; // scope 27 at $DIR/reference_prop.rs:+51:18: +51:20 + StorageLive(_42); // scope 28 at $DIR/reference_prop.rs:+52:13: +52:15 + _42 = (*_41); // scope 28 at $DIR/reference_prop.rs:+52:18: +52:21 + StorageLive(_43); // scope 29 at $DIR/reference_prop.rs:+53:13: +53:15 + _43 = _41; // scope 29 at $DIR/reference_prop.rs:+53:18: +53:20 + StorageLive(_44); // scope 30 at $DIR/reference_prop.rs:+56:9: +56:19 + StorageLive(_45); // scope 30 at $DIR/reference_prop.rs:+56:16: +56:18 + _45 = _43; // scope 30 at $DIR/reference_prop.rs:+56:16: +56:18 + _44 = opaque::<*mut usize>(move _45) -> bb6; // scope 30 at $DIR/reference_prop.rs:+56:9: +56:19 + // mir::Constant + // + span: $DIR/reference_prop.rs:300:9: 300:15 + // + literal: Const { ty: fn(*mut usize) {opaque::<*mut usize>}, val: Value(<ZST>) } + } + + bb6: { + StorageDead(_45); // scope 30 at $DIR/reference_prop.rs:+56:18: +56:19 + StorageDead(_44); // scope 30 at $DIR/reference_prop.rs:+56:19: +56:20 +- _37 = const (); // scope 24 at $DIR/reference_prop.rs:+47:5: +57:6 + StorageDead(_43); // scope 29 at $DIR/reference_prop.rs:+57:5: +57:6 + StorageDead(_42); // scope 28 at $DIR/reference_prop.rs:+57:5: +57:6 + StorageDead(_41); // scope 27 at $DIR/reference_prop.rs:+57:5: +57:6 + StorageDead(_40); // scope 26 at $DIR/reference_prop.rs:+57:5: +57:6 + StorageDead(_39); // scope 25 at $DIR/reference_prop.rs:+57:5: +57:6 + StorageDead(_38); // scope 24 at $DIR/reference_prop.rs:+57:5: +57:6 +- StorageDead(_37); // scope 0 at $DIR/reference_prop.rs:+57:5: +57:6 +- StorageLive(_46); // scope 0 at $DIR/reference_prop.rs:+60:5: +64:6 + StorageLive(_47); // scope 31 at $DIR/reference_prop.rs:+61:13: +61:14 + _47 = &raw mut (*_1); // scope 31 at $DIR/reference_prop.rs:+61:17: +61:33 + StorageLive(_48); // scope 32 at $DIR/reference_prop.rs:+62:13: +62:14 +- _48 = (*_47); // scope 32 at $DIR/reference_prop.rs:+62:17: +62:19 ++ _48 = (*_1); // scope 32 at $DIR/reference_prop.rs:+62:17: +62:19 + StorageLive(_49); // scope 33 at $DIR/reference_prop.rs:+63:9: +63:19 + StorageLive(_50); // scope 33 at $DIR/reference_prop.rs:+63:16: +63:18 + _50 = (); // scope 33 at $DIR/reference_prop.rs:+63:16: +63:18 + _49 = opaque::<()>(move _50) -> bb7; // scope 33 at $DIR/reference_prop.rs:+63:9: +63:19 + // mir::Constant + // + span: $DIR/reference_prop.rs:307:9: 307:15 + // + literal: Const { ty: fn(()) {opaque::<()>}, val: Value(<ZST>) } + } + + bb7: { + StorageDead(_50); // scope 33 at $DIR/reference_prop.rs:+63:18: +63:19 + StorageDead(_49); // scope 33 at $DIR/reference_prop.rs:+63:19: +63:20 +- _46 = const (); // scope 31 at $DIR/reference_prop.rs:+60:5: +64:6 + StorageDead(_48); // scope 32 at $DIR/reference_prop.rs:+64:5: +64:6 + StorageDead(_47); // scope 31 at $DIR/reference_prop.rs:+64:5: +64:6 +- StorageDead(_46); // scope 0 at $DIR/reference_prop.rs:+64:5: +64:6 + StorageLive(_51); // scope 34 at $DIR/reference_prop.rs:+68:13: +68:14 + _51 = &raw mut (*_2); // scope 34 at $DIR/reference_prop.rs:+68:17: +68:35 + StorageLive(_52); // scope 35 at $DIR/reference_prop.rs:+69:20: +69:36 + _52 = &raw mut (*_1); // scope 35 at $DIR/reference_prop.rs:+69:20: +69:36 + _2 = move _52; // scope 35 at $DIR/reference_prop.rs:+69:9: +69:36 + StorageDead(_52); // scope 35 at $DIR/reference_prop.rs:+69:35: +69:36 + StorageLive(_53); // scope 35 at $DIR/reference_prop.rs:+70:13: +70:14 + _53 = (*_51); // scope 35 at $DIR/reference_prop.rs:+70:17: +70:19 + StorageLive(_54); // scope 36 at $DIR/reference_prop.rs:+71:9: +71:19 + StorageLive(_55); // scope 36 at $DIR/reference_prop.rs:+71:16: +71:18 + _55 = (); // scope 36 at $DIR/reference_prop.rs:+71:16: +71:18 + _54 = opaque::<()>(move _55) -> bb8; // scope 36 at $DIR/reference_prop.rs:+71:9: +71:19 + // mir::Constant + // + span: $DIR/reference_prop.rs:315:9: 315:15 + // + literal: Const { ty: fn(()) {opaque::<()>}, val: Value(<ZST>) } + } + + bb8: { + StorageDead(_55); // scope 36 at $DIR/reference_prop.rs:+71:18: +71:19 + StorageDead(_54); // scope 36 at $DIR/reference_prop.rs:+71:19: +71:20 + _0 = const (); // scope 34 at $DIR/reference_prop.rs:+67:5: +72:6 + StorageDead(_53); // scope 35 at $DIR/reference_prop.rs:+72:5: +72:6 + StorageDead(_51); // scope 34 at $DIR/reference_prop.rs:+72:5: +72:6 + return; // scope 0 at $DIR/reference_prop.rs:+73:2: +73:2 + } + } + diff --git a/tests/mir-opt/reference_prop.rs b/tests/mir-opt/reference_prop.rs new file mode 100644 index 00000000000..e3e5d791464 --- /dev/null +++ b/tests/mir-opt/reference_prop.rs @@ -0,0 +1,456 @@ +// unit-test: ReferencePropagation +// needs-unwind + +#![feature(raw_ref_op)] +#![feature(core_intrinsics, custom_mir)] + +#[inline(never)] +fn opaque(_: impl Sized) {} + +fn reference_propagation<'a, T: Copy>(single: &'a T, mut multiple: &'a T) { + // Propagation through a reference. + { + let a = 5_usize; + let b = &a; // This borrow is only used once. + let c = *b; // This should be optimized. + opaque(()); // We use opaque to separate cases into basic blocks in the MIR. + } + + // Propagation through a two references. + { + let a = 5_usize; + let a2 = 7_usize; + let mut b = &a; + b = &a2; + // `b` is assigned twice, so we cannot propagate it. + let c = *b; + opaque(()); + } + + // Propagation through a borrowed reference. + { + let a = 5_usize; + let b = &a; + let d = &b; + let c = *b; // `b` is immutably borrowed, we know its value, but do not propagate it + opaque(()); + } + + // Propagation through a borrowed reference. + { + let a = 5_usize; + let mut b = &a; + let d = &mut b; + let c = *b; // `b` is mutably borrowed, we cannot know its value. + opaque(()); + } + + // Propagation through an escaping borrow. + { + let a = 7_usize; + let b = &a; + let c = *b; + opaque(b); // `b` escapes here, but we can still replace immutable borrow + } + + // Propagation through a transitively escaping borrow. + { + let a = 7_usize; + let b1 = &a; + let c = *b1; + let b2 = b1; + let c2 = *b2; + let b3 = b2; + // `b3` escapes here, so we can only replace immutable borrow, + // for either `b`, `b2` or `b3`. + opaque(b3); + } + + // Propagation a reborrow of an argument. + { + let a = &*single; + let b = *a; // This should be optimized as `*single`. + opaque(()); + } + + // Propagation a reborrow of a mutated argument. + { + let a = &*multiple; + multiple = &*single; + let b = *a; // This should not be optimized. + opaque(()); + } +} + +fn reference_propagation_mut<'a, T: Copy>(single: &'a mut T, mut multiple: &'a mut T) { + // Propagation through a reference. + { + let mut a = 5_usize; + let b = &mut a; // This borrow is only used once. + let c = *b; // This should be optimized. + opaque(()); + } + + // Propagation through a two references. + { + let mut a = 5_usize; + let mut a2 = 7_usize; + let mut b = &mut a; + b = &mut a2; + // `b` is assigned twice, so we cannot propagate it. + let c = *b; + opaque(()); + } + + // Propagation through a borrowed reference. + { + let mut a = 5_usize; + let b = &mut a; + let d = &b; + let c = *b; // `b` is immutably borrowed, we know its value, but cannot be removed. + opaque(()); + } + + // Propagation through a borrowed reference. + { + let mut a = 5_usize; + let mut b = &mut a; + let d = &mut b; + let c = *b; // `b` is mutably borrowed, we cannot know its value. + opaque(()); + } + + // Propagation through an escaping borrow. + { + let mut a = 7_usize; + let b = &mut a; + let c = *b; + opaque(b); // `b` escapes here, so we can only replace immutable borrow + } + + // Propagation through a transitively escaping borrow. + { + let mut a = 7_usize; + let b1 = &mut a; + let c = *b1; + let b2 = b1; + let c2 = *b2; + let b3 = b2; + // `b3` escapes here, so we can only replace immutable borrow, + // for either `b`, `b2` or `b3`. + opaque(b3); + } + + // Propagation a reborrow of an argument. + { + let a = &mut *single; + let b = *a; // This should be optimized as `*single`. + opaque(()); + } + + // Propagation a reborrow of a mutated argument. + { + let a = &mut *multiple; + multiple = &mut *single; + let b = *a; // This should not be optimized. + opaque(()); + } +} + +fn reference_propagation_const_ptr<T: Copy>(single: *const T, mut multiple: *const T) { + // Propagation through a reference. + unsafe { + let a = 5_usize; + let b = &raw const a; // This borrow is only used once. + let c = *b; // This should be optimized. + opaque(()); + } + + // Propagation through a two references. + unsafe { + let a = 5_usize; + let a2 = 7_usize; + let mut b = &raw const a; + b = &raw const a2; + // `b` is assigned twice, so we cannot propagate it. + let c = *b; + opaque(()); + } + + // Propagation through a borrowed reference. + unsafe { + let a = 5_usize; + let b = &raw const a; + let d = &b; + let c = *b; // `b` is immutably borrowed, we know its value, but cannot be removed. + opaque(()); + } + + // Propagation through a borrowed reference. + unsafe { + let a = 5_usize; + let mut b = &raw const a; + let d = &mut b; + let c = *b; // `b` is mutably borrowed, we cannot know its value. + opaque(()); + } + + // Propagation through an escaping borrow. + unsafe { + let a = 7_usize; + let b = &raw const a; + let c = *b; + opaque(b); // `b` escapes here, so we can only replace immutable borrow + } + + // Propagation through a transitively escaping borrow. + unsafe { + let a = 7_usize; + let b1 = &raw const a; + let c = *b1; + let b2 = b1; + let c2 = *b2; + let b3 = b2; + // `b3` escapes here, so we can only replace immutable borrow, + // for either `b`, `b2` or `b3`. + opaque(b3); + } + + // Propagation a reborrow of an argument. + unsafe { + let a = &raw const *single; + let b = *a; // This should be optimized as `*single`. + opaque(()); + } + + // Propagation a reborrow of a mutated argument. + unsafe { + let a = &raw const *multiple; + multiple = &raw const *single; + let b = *a; // This should not be optimized. + opaque(()); + } + + // Propagation through a reborrow. + unsafe { + let a = 13_usize; + let b = &raw const a; + let c = &raw const *b; + let e = *c; + opaque(()); + } +} + +fn reference_propagation_mut_ptr<T: Copy>(single: *mut T, mut multiple: *mut T) { + // Propagation through a reference. + unsafe { + let mut a = 5_usize; + let b = &raw mut a; // This borrow is only used once. + let c = *b; // This should be optimized. + opaque(()); + } + + // Propagation through a two references. + unsafe { + let mut a = 5_usize; + let mut a2 = 7_usize; + let mut b = &raw mut a; + b = &raw mut a2; + // `b` is assigned twice, so we cannot propagate it. + let c = *b; + opaque(()); + } + + // Propagation through a borrowed reference. + unsafe { + let mut a = 5_usize; + let b = &raw mut a; + let d = &b; + let c = *b; // `b` is immutably borrowed, we know its value, but cannot be removed. + opaque(()); + } + + // Propagation through a borrowed reference. + unsafe { + let mut a = 5_usize; + let mut b = &raw mut a; + let d = &mut b; + let c = *b; // `b` is mutably borrowed, we cannot know its value. + opaque(()); + } + + // Propagation through an escaping borrow. + unsafe { + let mut a = 7_usize; + let b = &raw mut a; + let c = *b; + opaque(b); // `b` escapes here, so we can only replace immutable borrow + } + + // Propagation through a transitively escaping borrow. + unsafe { + let mut a = 7_usize; + let b1 = &raw mut a; + let c = *b1; + let b2 = b1; + let c2 = *b2; + let b3 = b2; + // `b3` escapes here, so we can only replace immutable borrow, + // for either `b`, `b2` or `b3`. + opaque(b3); + } + + // Propagation a reborrow of an argument. + unsafe { + let a = &raw mut *single; + let b = *a; // This should be optimized as `*single`. + opaque(()); + } + + // Propagation a reborrow of a mutated argument. + unsafe { + let a = &raw mut *multiple; + multiple = &raw mut *single; + let b = *a; // This should not be optimized. + opaque(()); + } +} + +#[custom_mir(dialect = "runtime", phase = "post-cleanup")] +fn read_through_raw(x: &mut usize) -> usize { + use std::intrinsics::mir::*; + + mir!( + let r1: &mut usize; + let r2: &mut usize; + let p1: *mut usize; + let p2: *mut usize; + + { + r1 = &mut *x; + r2 = &mut *r1; + p1 = &raw mut *r1; + p2 = &raw mut *r2; + + RET = *p1; + RET = *p2; + Return() + } + ) +} + +#[custom_mir(dialect = "runtime", phase = "post-cleanup")] +fn multiple_storage() { + use std::intrinsics::mir::*; + + mir!( + let x: i32; + { + StorageLive(x); + x = 5; + let z = &x; + StorageDead(x); + StorageLive(x); + // As there are multiple `StorageLive` statements for `x`, we cannot know if this `z`'s + // pointer address is the address of `x`, so do nothing. + let y = *z; + Call(RET, retblock, opaque(y)) + } + + retblock = { + Return() + } + ) +} + +#[custom_mir(dialect = "runtime", phase = "post-cleanup")] +fn dominate_storage() { + use std::intrinsics::mir::*; + + mir!( + let x: i32; + let r: &i32; + let c: i32; + let d: bool; + { Goto(bb0) } + bb0 = { + x = 5; + r = &x; + Goto(bb1) + } + bb1 = { + let c = *r; + Call(RET, bb2, opaque(c)) + } + bb2 = { + StorageDead(x); + StorageLive(x); + let d = true; + match d { false => bb2, _ => bb0 } + } + ) +} + +#[custom_mir(dialect = "runtime", phase = "post-cleanup")] +fn maybe_dead(m: bool) { + use std::intrinsics::mir::*; + + mir!( + let x: i32; + let y: i32; + { + StorageLive(x); + StorageLive(y); + x = 5; + y = 5; + let a = &x; + let b = &mut y; + // As we don't replace `b` in `bb2`, we cannot replace it here either. + *b = 7; + // But this can still be replaced. + let u = *a; + match m { true => bb1, _ => bb2 } + } + bb1 = { + StorageDead(x); + StorageDead(y); + Call(RET, bb2, opaque(u)) + } + bb2 = { + // As `x` may be `StorageDead`, `a` may be dangling, so we do nothing. + let z = *a; + Call(RET, bb3, opaque(z)) + } + bb3 = { + // As `y` may be `StorageDead`, `b` may be dangling, so we do nothing. + // This implies that we also do not substitute `b` in `bb0`. + let t = *b; + Call(RET, retblock, opaque(t)) + } + retblock = { + Return() + } + ) +} + +fn main() { + let mut x = 5_usize; + let mut y = 7_usize; + reference_propagation(&x, &y); + reference_propagation_mut(&mut x, &mut y); + reference_propagation_const_ptr(&raw const x, &raw const y); + reference_propagation_mut_ptr(&raw mut x, &raw mut y); + read_through_raw(&mut x); + multiple_storage(); + dominate_storage(); + maybe_dead(true); +} + +// EMIT_MIR reference_prop.reference_propagation.ReferencePropagation.diff +// EMIT_MIR reference_prop.reference_propagation_mut.ReferencePropagation.diff +// EMIT_MIR reference_prop.reference_propagation_const_ptr.ReferencePropagation.diff +// EMIT_MIR reference_prop.reference_propagation_mut_ptr.ReferencePropagation.diff +// EMIT_MIR reference_prop.read_through_raw.ReferencePropagation.diff +// EMIT_MIR reference_prop.multiple_storage.ReferencePropagation.diff +// EMIT_MIR reference_prop.dominate_storage.ReferencePropagation.diff +// EMIT_MIR reference_prop.maybe_dead.ReferencePropagation.diff diff --git a/tests/mir-opt/slice_filter.rs b/tests/mir-opt/slice_filter.rs index 97c18af31de..be32f40f132 100644 --- a/tests/mir-opt/slice_filter.rs +++ b/tests/mir-opt/slice_filter.rs @@ -12,7 +12,9 @@ pub fn variant_b(input: &[(usize, usize, usize, usize)]) -> usize { input.iter().filter(|&&(a, b, c, d)| a <= c && d <= b || c <= a && b <= d).count() } +// EMIT_MIR slice_filter.variant_a-{closure#0}.ReferencePropagation.diff // EMIT_MIR slice_filter.variant_a-{closure#0}.CopyProp.diff // EMIT_MIR slice_filter.variant_a-{closure#0}.DestinationPropagation.diff // EMIT_MIR slice_filter.variant_b-{closure#0}.CopyProp.diff +// EMIT_MIR slice_filter.variant_b-{closure#0}.ReferencePropagation.diff // EMIT_MIR slice_filter.variant_b-{closure#0}.DestinationPropagation.diff diff --git a/tests/mir-opt/slice_filter.variant_a-{closure#0}.CopyProp.diff b/tests/mir-opt/slice_filter.variant_a-{closure#0}.CopyProp.diff index 3bb0358ffe3..60e5056c7a9 100644 --- a/tests/mir-opt/slice_filter.variant_a-{closure#0}.CopyProp.diff +++ b/tests/mir-opt/slice_filter.variant_a-{closure#0}.CopyProp.diff @@ -101,16 +101,16 @@ } bb0: { -- StorageLive(_3); // scope 0 at $DIR/slice_filter.rs:+0:27: +0:28 + StorageLive(_3); // scope 0 at $DIR/slice_filter.rs:+0:27: +0:28 _25 = deref_copy (*_2); // scope 0 at $DIR/slice_filter.rs:+0:27: +0:28 _3 = &((*_25).0: usize); // scope 0 at $DIR/slice_filter.rs:+0:27: +0:28 -- StorageLive(_4); // scope 0 at $DIR/slice_filter.rs:+0:30: +0:31 + StorageLive(_4); // scope 0 at $DIR/slice_filter.rs:+0:30: +0:31 _26 = deref_copy (*_2); // scope 0 at $DIR/slice_filter.rs:+0:30: +0:31 _4 = &((*_26).1: usize); // scope 0 at $DIR/slice_filter.rs:+0:30: +0:31 -- StorageLive(_5); // scope 0 at $DIR/slice_filter.rs:+0:33: +0:34 + StorageLive(_5); // scope 0 at $DIR/slice_filter.rs:+0:33: +0:34 _27 = deref_copy (*_2); // scope 0 at $DIR/slice_filter.rs:+0:33: +0:34 _5 = &((*_27).2: usize); // scope 0 at $DIR/slice_filter.rs:+0:33: +0:34 -- StorageLive(_6); // scope 0 at $DIR/slice_filter.rs:+0:36: +0:37 + StorageLive(_6); // scope 0 at $DIR/slice_filter.rs:+0:36: +0:37 _28 = deref_copy (*_2); // scope 0 at $DIR/slice_filter.rs:+0:36: +0:37 _6 = &((*_28).3: usize); // scope 0 at $DIR/slice_filter.rs:+0:36: +0:37 StorageLive(_7); // scope 1 at $DIR/slice_filter.rs:+0:40: +0:56 @@ -184,10 +184,10 @@ bb3: { StorageDead(_16); // scope 1 at $DIR/slice_filter.rs:+0:75: +0:76 StorageDead(_7); // scope 1 at $DIR/slice_filter.rs:+0:75: +0:76 -- StorageDead(_6); // scope 0 at $DIR/slice_filter.rs:+0:75: +0:76 -- StorageDead(_5); // scope 0 at $DIR/slice_filter.rs:+0:75: +0:76 -- StorageDead(_4); // scope 0 at $DIR/slice_filter.rs:+0:75: +0:76 -- StorageDead(_3); // scope 0 at $DIR/slice_filter.rs:+0:75: +0:76 + StorageDead(_6); // scope 0 at $DIR/slice_filter.rs:+0:75: +0:76 + StorageDead(_5); // scope 0 at $DIR/slice_filter.rs:+0:75: +0:76 + StorageDead(_4); // scope 0 at $DIR/slice_filter.rs:+0:75: +0:76 + StorageDead(_3); // scope 0 at $DIR/slice_filter.rs:+0:75: +0:76 return; // scope 0 at $DIR/slice_filter.rs:+0:76: +0:76 } diff --git a/tests/mir-opt/slice_filter.variant_a-{closure#0}.DestinationPropagation.diff b/tests/mir-opt/slice_filter.variant_a-{closure#0}.DestinationPropagation.diff index 294c3272f4f..7ad1ccf28a6 100644 --- a/tests/mir-opt/slice_filter.variant_a-{closure#0}.DestinationPropagation.diff +++ b/tests/mir-opt/slice_filter.variant_a-{closure#0}.DestinationPropagation.diff @@ -30,10 +30,14 @@ let mut _27: &(usize, usize, usize, usize); // in scope 0 at $DIR/slice_filter.rs:+0:26: +0:38 let mut _28: &(usize, usize, usize, usize); // in scope 0 at $DIR/slice_filter.rs:+0:26: +0:38 scope 1 { - debug a => _3; // in scope 1 at $DIR/slice_filter.rs:+0:27: +0:28 - debug b => _4; // in scope 1 at $DIR/slice_filter.rs:+0:30: +0:31 - debug c => _5; // in scope 1 at $DIR/slice_filter.rs:+0:33: +0:34 - debug d => _6; // in scope 1 at $DIR/slice_filter.rs:+0:36: +0:37 +- debug a => _3; // in scope 1 at $DIR/slice_filter.rs:+0:27: +0:28 +- debug b => _4; // in scope 1 at $DIR/slice_filter.rs:+0:30: +0:31 +- debug c => _5; // in scope 1 at $DIR/slice_filter.rs:+0:33: +0:34 +- debug d => _6; // in scope 1 at $DIR/slice_filter.rs:+0:36: +0:37 ++ debug a => _20; // in scope 1 at $DIR/slice_filter.rs:+0:27: +0:28 ++ debug b => _15; // in scope 1 at $DIR/slice_filter.rs:+0:30: +0:31 ++ debug c => _11; // in scope 1 at $DIR/slice_filter.rs:+0:33: +0:34 ++ debug d => _24; // in scope 1 at $DIR/slice_filter.rs:+0:36: +0:37 scope 2 (inlined cmp::impls::<impl PartialOrd for &usize>::le) { // at $DIR/slice_filter.rs:8:40: 8:46 debug self => _9; // in scope 2 at $SRC_DIR/core/src/cmp.rs:LL:COL debug other => _10; // in scope 2 at $SRC_DIR/core/src/cmp.rs:LL:COL @@ -85,25 +89,38 @@ } bb0: { +- StorageLive(_3); // scope 0 at $DIR/slice_filter.rs:+0:27: +0:28 ++ nop; // scope 0 at $DIR/slice_filter.rs:+0:27: +0:28 _25 = deref_copy (*_2); // scope 0 at $DIR/slice_filter.rs:+0:27: +0:28 - _3 = &((*_25).0: usize); // scope 0 at $DIR/slice_filter.rs:+0:27: +0:28 +- _3 = &((*_25).0: usize); // scope 0 at $DIR/slice_filter.rs:+0:27: +0:28 +- StorageLive(_4); // scope 0 at $DIR/slice_filter.rs:+0:30: +0:31 ++ _20 = &((*_25).0: usize); // scope 0 at $DIR/slice_filter.rs:+0:27: +0:28 ++ nop; // scope 0 at $DIR/slice_filter.rs:+0:30: +0:31 _26 = deref_copy (*_2); // scope 0 at $DIR/slice_filter.rs:+0:30: +0:31 - _4 = &((*_26).1: usize); // scope 0 at $DIR/slice_filter.rs:+0:30: +0:31 +- _4 = &((*_26).1: usize); // scope 0 at $DIR/slice_filter.rs:+0:30: +0:31 +- StorageLive(_5); // scope 0 at $DIR/slice_filter.rs:+0:33: +0:34 ++ _15 = &((*_26).1: usize); // scope 0 at $DIR/slice_filter.rs:+0:30: +0:31 ++ nop; // scope 0 at $DIR/slice_filter.rs:+0:33: +0:34 _27 = deref_copy (*_2); // scope 0 at $DIR/slice_filter.rs:+0:33: +0:34 - _5 = &((*_27).2: usize); // scope 0 at $DIR/slice_filter.rs:+0:33: +0:34 +- _5 = &((*_27).2: usize); // scope 0 at $DIR/slice_filter.rs:+0:33: +0:34 +- StorageLive(_6); // scope 0 at $DIR/slice_filter.rs:+0:36: +0:37 ++ _11 = &((*_27).2: usize); // scope 0 at $DIR/slice_filter.rs:+0:33: +0:34 ++ nop; // scope 0 at $DIR/slice_filter.rs:+0:36: +0:37 _28 = deref_copy (*_2); // scope 0 at $DIR/slice_filter.rs:+0:36: +0:37 - _6 = &((*_28).3: usize); // scope 0 at $DIR/slice_filter.rs:+0:36: +0:37 +- _6 = &((*_28).3: usize); // scope 0 at $DIR/slice_filter.rs:+0:36: +0:37 - StorageLive(_7); // scope 1 at $DIR/slice_filter.rs:+0:40: +0:56 ++ _24 = &((*_28).3: usize); // scope 0 at $DIR/slice_filter.rs:+0:36: +0:37 + nop; // scope 1 at $DIR/slice_filter.rs:+0:40: +0:56 StorageLive(_8); // scope 1 at $DIR/slice_filter.rs:+0:40: +0:46 StorageLive(_9); // scope 1 at $DIR/slice_filter.rs:+0:40: +0:41 - _9 = &_3; // scope 1 at $DIR/slice_filter.rs:+0:40: +0:41 StorageLive(_10); // scope 1 at $DIR/slice_filter.rs:+0:45: +0:46 - StorageLive(_11); // scope 1 at $DIR/slice_filter.rs:+0:45: +0:46 - _11 = _5; // scope 1 at $DIR/slice_filter.rs:+0:45: +0:46 - _10 = &_11; // scope 1 at $DIR/slice_filter.rs:+0:45: +0:46 - _29 = deref_copy (*_9); // scope 2 at $SRC_DIR/core/src/cmp.rs:LL:COL - _30 = deref_copy (*_10); // scope 2 at $SRC_DIR/core/src/cmp.rs:LL:COL +- StorageLive(_11); // scope 1 at $DIR/slice_filter.rs:+0:45: +0:46 +- _11 = _5; // scope 1 at $DIR/slice_filter.rs:+0:45: +0:46 +- _29 = deref_copy _3; // scope 2 at $SRC_DIR/core/src/cmp.rs:LL:COL ++ nop; // scope 1 at $DIR/slice_filter.rs:+0:45: +0:46 ++ nop; // scope 1 at $DIR/slice_filter.rs:+0:45: +0:46 ++ _29 = deref_copy _20; // scope 2 at $SRC_DIR/core/src/cmp.rs:LL:COL + _30 = deref_copy _11; // scope 2 at $SRC_DIR/core/src/cmp.rs:LL:COL StorageLive(_31); // scope 3 at $SRC_DIR/core/src/cmp.rs:LL:COL _31 = (*_29); // scope 3 at $SRC_DIR/core/src/cmp.rs:LL:COL StorageLive(_32); // scope 3 at $SRC_DIR/core/src/cmp.rs:LL:COL @@ -111,7 +128,8 @@ _8 = Le(move _31, move _32); // scope 3 at $SRC_DIR/core/src/cmp.rs:LL:COL StorageDead(_32); // scope 3 at $SRC_DIR/core/src/cmp.rs:LL:COL StorageDead(_31); // scope 3 at $SRC_DIR/core/src/cmp.rs:LL:COL - StorageDead(_11); // scope 1 at $DIR/slice_filter.rs:+0:45: +0:46 +- StorageDead(_11); // scope 1 at $DIR/slice_filter.rs:+0:45: +0:46 ++ nop; // scope 1 at $DIR/slice_filter.rs:+0:45: +0:46 StorageDead(_10); // scope 1 at $DIR/slice_filter.rs:+0:45: +0:46 StorageDead(_9); // scope 1 at $DIR/slice_filter.rs:+0:45: +0:46 switchInt(move _8) -> [0: bb4, otherwise: bb5]; // scope 1 at $DIR/slice_filter.rs:+0:40: +0:56 @@ -127,13 +145,14 @@ + nop; // scope 1 at $DIR/slice_filter.rs:+0:60: +0:76 StorageLive(_17); // scope 1 at $DIR/slice_filter.rs:+0:60: +0:66 StorageLive(_18); // scope 1 at $DIR/slice_filter.rs:+0:60: +0:61 - _18 = &_5; // scope 1 at $DIR/slice_filter.rs:+0:60: +0:61 StorageLive(_19); // scope 1 at $DIR/slice_filter.rs:+0:65: +0:66 - StorageLive(_20); // scope 1 at $DIR/slice_filter.rs:+0:65: +0:66 - _20 = _3; // scope 1 at $DIR/slice_filter.rs:+0:65: +0:66 - _19 = &_20; // scope 1 at $DIR/slice_filter.rs:+0:65: +0:66 - _33 = deref_copy (*_18); // scope 4 at $SRC_DIR/core/src/cmp.rs:LL:COL - _34 = deref_copy (*_19); // scope 4 at $SRC_DIR/core/src/cmp.rs:LL:COL +- StorageLive(_20); // scope 1 at $DIR/slice_filter.rs:+0:65: +0:66 +- _20 = _3; // scope 1 at $DIR/slice_filter.rs:+0:65: +0:66 +- _33 = deref_copy _5; // scope 4 at $SRC_DIR/core/src/cmp.rs:LL:COL ++ nop; // scope 1 at $DIR/slice_filter.rs:+0:65: +0:66 ++ nop; // scope 1 at $DIR/slice_filter.rs:+0:65: +0:66 ++ _33 = deref_copy _11; // scope 4 at $SRC_DIR/core/src/cmp.rs:LL:COL + _34 = deref_copy _20; // scope 4 at $SRC_DIR/core/src/cmp.rs:LL:COL StorageLive(_35); // scope 5 at $SRC_DIR/core/src/cmp.rs:LL:COL _35 = (*_33); // scope 5 at $SRC_DIR/core/src/cmp.rs:LL:COL StorageLive(_36); // scope 5 at $SRC_DIR/core/src/cmp.rs:LL:COL @@ -141,7 +160,8 @@ _17 = Le(move _35, move _36); // scope 5 at $SRC_DIR/core/src/cmp.rs:LL:COL StorageDead(_36); // scope 5 at $SRC_DIR/core/src/cmp.rs:LL:COL StorageDead(_35); // scope 5 at $SRC_DIR/core/src/cmp.rs:LL:COL - StorageDead(_20); // scope 1 at $DIR/slice_filter.rs:+0:65: +0:66 +- StorageDead(_20); // scope 1 at $DIR/slice_filter.rs:+0:65: +0:66 ++ nop; // scope 1 at $DIR/slice_filter.rs:+0:65: +0:66 StorageDead(_19); // scope 1 at $DIR/slice_filter.rs:+0:65: +0:66 StorageDead(_18); // scope 1 at $DIR/slice_filter.rs:+0:65: +0:66 switchInt(move _17) -> [0: bb6, otherwise: bb7]; // scope 1 at $DIR/slice_filter.rs:+0:60: +0:76 @@ -150,8 +170,16 @@ bb3: { - StorageDead(_16); // scope 1 at $DIR/slice_filter.rs:+0:75: +0:76 - StorageDead(_7); // scope 1 at $DIR/slice_filter.rs:+0:75: +0:76 +- StorageDead(_6); // scope 0 at $DIR/slice_filter.rs:+0:75: +0:76 +- StorageDead(_5); // scope 0 at $DIR/slice_filter.rs:+0:75: +0:76 +- StorageDead(_4); // scope 0 at $DIR/slice_filter.rs:+0:75: +0:76 +- StorageDead(_3); // scope 0 at $DIR/slice_filter.rs:+0:75: +0:76 + nop; // scope 1 at $DIR/slice_filter.rs:+0:75: +0:76 + nop; // scope 1 at $DIR/slice_filter.rs:+0:75: +0:76 ++ nop; // scope 0 at $DIR/slice_filter.rs:+0:75: +0:76 ++ nop; // scope 0 at $DIR/slice_filter.rs:+0:75: +0:76 ++ nop; // scope 0 at $DIR/slice_filter.rs:+0:75: +0:76 ++ nop; // scope 0 at $DIR/slice_filter.rs:+0:75: +0:76 return; // scope 0 at $DIR/slice_filter.rs:+0:76: +0:76 } @@ -166,13 +194,14 @@ - StorageLive(_12); // scope 1 at $DIR/slice_filter.rs:+0:50: +0:56 + nop; // scope 1 at $DIR/slice_filter.rs:+0:50: +0:56 StorageLive(_13); // scope 1 at $DIR/slice_filter.rs:+0:50: +0:51 - _13 = &_6; // scope 1 at $DIR/slice_filter.rs:+0:50: +0:51 StorageLive(_14); // scope 1 at $DIR/slice_filter.rs:+0:55: +0:56 - StorageLive(_15); // scope 1 at $DIR/slice_filter.rs:+0:55: +0:56 - _15 = _4; // scope 1 at $DIR/slice_filter.rs:+0:55: +0:56 - _14 = &_15; // scope 1 at $DIR/slice_filter.rs:+0:55: +0:56 - _37 = deref_copy (*_13); // scope 6 at $SRC_DIR/core/src/cmp.rs:LL:COL - _38 = deref_copy (*_14); // scope 6 at $SRC_DIR/core/src/cmp.rs:LL:COL +- StorageLive(_15); // scope 1 at $DIR/slice_filter.rs:+0:55: +0:56 +- _15 = _4; // scope 1 at $DIR/slice_filter.rs:+0:55: +0:56 +- _37 = deref_copy _6; // scope 6 at $SRC_DIR/core/src/cmp.rs:LL:COL ++ nop; // scope 1 at $DIR/slice_filter.rs:+0:55: +0:56 ++ nop; // scope 1 at $DIR/slice_filter.rs:+0:55: +0:56 ++ _37 = deref_copy _24; // scope 6 at $SRC_DIR/core/src/cmp.rs:LL:COL + _38 = deref_copy _15; // scope 6 at $SRC_DIR/core/src/cmp.rs:LL:COL StorageLive(_39); // scope 7 at $SRC_DIR/core/src/cmp.rs:LL:COL _39 = (*_37); // scope 7 at $SRC_DIR/core/src/cmp.rs:LL:COL StorageLive(_40); // scope 7 at $SRC_DIR/core/src/cmp.rs:LL:COL @@ -180,7 +209,8 @@ _12 = Le(move _39, move _40); // scope 7 at $SRC_DIR/core/src/cmp.rs:LL:COL StorageDead(_40); // scope 7 at $SRC_DIR/core/src/cmp.rs:LL:COL StorageDead(_39); // scope 7 at $SRC_DIR/core/src/cmp.rs:LL:COL - StorageDead(_15); // scope 1 at $DIR/slice_filter.rs:+0:55: +0:56 +- StorageDead(_15); // scope 1 at $DIR/slice_filter.rs:+0:55: +0:56 ++ nop; // scope 1 at $DIR/slice_filter.rs:+0:55: +0:56 StorageDead(_14); // scope 1 at $DIR/slice_filter.rs:+0:55: +0:56 StorageDead(_13); // scope 1 at $DIR/slice_filter.rs:+0:55: +0:56 - _7 = move _12; // scope 1 at $DIR/slice_filter.rs:+0:40: +0:56 @@ -202,13 +232,14 @@ - StorageLive(_21); // scope 1 at $DIR/slice_filter.rs:+0:70: +0:76 + nop; // scope 1 at $DIR/slice_filter.rs:+0:70: +0:76 StorageLive(_22); // scope 1 at $DIR/slice_filter.rs:+0:70: +0:71 - _22 = &_4; // scope 1 at $DIR/slice_filter.rs:+0:70: +0:71 StorageLive(_23); // scope 1 at $DIR/slice_filter.rs:+0:75: +0:76 - StorageLive(_24); // scope 1 at $DIR/slice_filter.rs:+0:75: +0:76 - _24 = _6; // scope 1 at $DIR/slice_filter.rs:+0:75: +0:76 - _23 = &_24; // scope 1 at $DIR/slice_filter.rs:+0:75: +0:76 - _41 = deref_copy (*_22); // scope 8 at $SRC_DIR/core/src/cmp.rs:LL:COL - _42 = deref_copy (*_23); // scope 8 at $SRC_DIR/core/src/cmp.rs:LL:COL +- StorageLive(_24); // scope 1 at $DIR/slice_filter.rs:+0:75: +0:76 +- _24 = _6; // scope 1 at $DIR/slice_filter.rs:+0:75: +0:76 +- _41 = deref_copy _4; // scope 8 at $SRC_DIR/core/src/cmp.rs:LL:COL ++ nop; // scope 1 at $DIR/slice_filter.rs:+0:75: +0:76 ++ nop; // scope 1 at $DIR/slice_filter.rs:+0:75: +0:76 ++ _41 = deref_copy _15; // scope 8 at $SRC_DIR/core/src/cmp.rs:LL:COL + _42 = deref_copy _24; // scope 8 at $SRC_DIR/core/src/cmp.rs:LL:COL StorageLive(_43); // scope 9 at $SRC_DIR/core/src/cmp.rs:LL:COL _43 = (*_41); // scope 9 at $SRC_DIR/core/src/cmp.rs:LL:COL StorageLive(_44); // scope 9 at $SRC_DIR/core/src/cmp.rs:LL:COL @@ -217,7 +248,8 @@ + _0 = Le(move _43, move _44); // scope 9 at $SRC_DIR/core/src/cmp.rs:LL:COL StorageDead(_44); // scope 9 at $SRC_DIR/core/src/cmp.rs:LL:COL StorageDead(_43); // scope 9 at $SRC_DIR/core/src/cmp.rs:LL:COL - StorageDead(_24); // scope 1 at $DIR/slice_filter.rs:+0:75: +0:76 +- StorageDead(_24); // scope 1 at $DIR/slice_filter.rs:+0:75: +0:76 ++ nop; // scope 1 at $DIR/slice_filter.rs:+0:75: +0:76 StorageDead(_23); // scope 1 at $DIR/slice_filter.rs:+0:75: +0:76 StorageDead(_22); // scope 1 at $DIR/slice_filter.rs:+0:75: +0:76 - _16 = move _21; // scope 1 at $DIR/slice_filter.rs:+0:60: +0:76 diff --git a/tests/mir-opt/slice_filter.variant_a-{closure#0}.ReferencePropagation.diff b/tests/mir-opt/slice_filter.variant_a-{closure#0}.ReferencePropagation.diff new file mode 100644 index 00000000000..f6350b3812a --- /dev/null +++ b/tests/mir-opt/slice_filter.variant_a-{closure#0}.ReferencePropagation.diff @@ -0,0 +1,247 @@ +- // MIR for `variant_a::{closure#0}` before ReferencePropagation ++ // MIR for `variant_a::{closure#0}` after ReferencePropagation + + fn variant_a::{closure#0}(_1: &mut [closure@$DIR/slice_filter.rs:8:25: 8:39], _2: &&(usize, usize, usize, usize)) -> bool { + let mut _0: bool; // return place in scope 0 at $DIR/slice_filter.rs:+0:40: +0:40 + let _3: &usize; // in scope 0 at $DIR/slice_filter.rs:+0:27: +0:28 + let _4: &usize; // in scope 0 at $DIR/slice_filter.rs:+0:30: +0:31 + let _5: &usize; // in scope 0 at $DIR/slice_filter.rs:+0:33: +0:34 + let _6: &usize; // in scope 0 at $DIR/slice_filter.rs:+0:36: +0:37 + let mut _7: bool; // in scope 0 at $DIR/slice_filter.rs:+0:40: +0:56 + let mut _8: bool; // in scope 0 at $DIR/slice_filter.rs:+0:40: +0:46 + let mut _9: &&usize; // in scope 0 at $DIR/slice_filter.rs:+0:40: +0:41 + let mut _10: &&usize; // in scope 0 at $DIR/slice_filter.rs:+0:45: +0:46 + let _11: &usize; // in scope 0 at $DIR/slice_filter.rs:+0:45: +0:46 + let mut _12: bool; // in scope 0 at $DIR/slice_filter.rs:+0:50: +0:56 + let mut _13: &&usize; // in scope 0 at $DIR/slice_filter.rs:+0:50: +0:51 + let mut _14: &&usize; // in scope 0 at $DIR/slice_filter.rs:+0:55: +0:56 + let _15: &usize; // in scope 0 at $DIR/slice_filter.rs:+0:55: +0:56 + let mut _16: bool; // in scope 0 at $DIR/slice_filter.rs:+0:60: +0:76 + let mut _17: bool; // in scope 0 at $DIR/slice_filter.rs:+0:60: +0:66 + let mut _18: &&usize; // in scope 0 at $DIR/slice_filter.rs:+0:60: +0:61 + let mut _19: &&usize; // in scope 0 at $DIR/slice_filter.rs:+0:65: +0:66 + let _20: &usize; // in scope 0 at $DIR/slice_filter.rs:+0:65: +0:66 + let mut _21: bool; // in scope 0 at $DIR/slice_filter.rs:+0:70: +0:76 + let mut _22: &&usize; // in scope 0 at $DIR/slice_filter.rs:+0:70: +0:71 + let mut _23: &&usize; // in scope 0 at $DIR/slice_filter.rs:+0:75: +0:76 + let _24: &usize; // in scope 0 at $DIR/slice_filter.rs:+0:75: +0:76 + let mut _25: &(usize, usize, usize, usize); // in scope 0 at $DIR/slice_filter.rs:+0:26: +0:38 + let mut _26: &(usize, usize, usize, usize); // in scope 0 at $DIR/slice_filter.rs:+0:26: +0:38 + let mut _27: &(usize, usize, usize, usize); // in scope 0 at $DIR/slice_filter.rs:+0:26: +0:38 + let mut _28: &(usize, usize, usize, usize); // in scope 0 at $DIR/slice_filter.rs:+0:26: +0:38 + let mut _31: &usize; // in scope 0 at $SRC_DIR/core/src/cmp.rs:LL:COL + let mut _32: &usize; // in scope 0 at $SRC_DIR/core/src/cmp.rs:LL:COL + let mut _37: &usize; // in scope 0 at $SRC_DIR/core/src/cmp.rs:LL:COL + let mut _38: &usize; // in scope 0 at $SRC_DIR/core/src/cmp.rs:LL:COL + let mut _43: &usize; // in scope 0 at $SRC_DIR/core/src/cmp.rs:LL:COL + let mut _44: &usize; // in scope 0 at $SRC_DIR/core/src/cmp.rs:LL:COL + let mut _49: &usize; // in scope 0 at $SRC_DIR/core/src/cmp.rs:LL:COL + let mut _50: &usize; // in scope 0 at $SRC_DIR/core/src/cmp.rs:LL:COL + scope 1 { + debug a => _3; // in scope 1 at $DIR/slice_filter.rs:+0:27: +0:28 + debug b => _4; // in scope 1 at $DIR/slice_filter.rs:+0:30: +0:31 + debug c => _5; // in scope 1 at $DIR/slice_filter.rs:+0:33: +0:34 + debug d => _6; // in scope 1 at $DIR/slice_filter.rs:+0:36: +0:37 + scope 2 (inlined cmp::impls::<impl PartialOrd for &usize>::le) { // at $DIR/slice_filter.rs:8:40: 8:46 + debug self => _9; // in scope 2 at $SRC_DIR/core/src/cmp.rs:LL:COL + debug other => _10; // in scope 2 at $SRC_DIR/core/src/cmp.rs:LL:COL + let mut _29: &usize; // in scope 2 at $SRC_DIR/core/src/cmp.rs:LL:COL + let mut _30: &usize; // in scope 2 at $SRC_DIR/core/src/cmp.rs:LL:COL + scope 3 (inlined cmp::impls::<impl PartialOrd for usize>::le) { // at $SRC_DIR/core/src/cmp.rs:LL:COL + debug self => _29; // in scope 3 at $SRC_DIR/core/src/cmp.rs:LL:COL + debug other => _30; // in scope 3 at $SRC_DIR/core/src/cmp.rs:LL:COL + let mut _33: usize; // in scope 3 at $SRC_DIR/core/src/cmp.rs:LL:COL + let mut _34: usize; // in scope 3 at $SRC_DIR/core/src/cmp.rs:LL:COL + } + } + scope 4 (inlined cmp::impls::<impl PartialOrd for &usize>::le) { // at $DIR/slice_filter.rs:8:60: 8:66 + debug self => _18; // in scope 4 at $SRC_DIR/core/src/cmp.rs:LL:COL + debug other => _19; // in scope 4 at $SRC_DIR/core/src/cmp.rs:LL:COL + let mut _35: &usize; // in scope 4 at $SRC_DIR/core/src/cmp.rs:LL:COL + let mut _36: &usize; // in scope 4 at $SRC_DIR/core/src/cmp.rs:LL:COL + scope 5 (inlined cmp::impls::<impl PartialOrd for usize>::le) { // at $SRC_DIR/core/src/cmp.rs:LL:COL + debug self => _35; // in scope 5 at $SRC_DIR/core/src/cmp.rs:LL:COL + debug other => _36; // in scope 5 at $SRC_DIR/core/src/cmp.rs:LL:COL + let mut _39: usize; // in scope 5 at $SRC_DIR/core/src/cmp.rs:LL:COL + let mut _40: usize; // in scope 5 at $SRC_DIR/core/src/cmp.rs:LL:COL + } + } + scope 6 (inlined cmp::impls::<impl PartialOrd for &usize>::le) { // at $DIR/slice_filter.rs:8:50: 8:56 + debug self => _13; // in scope 6 at $SRC_DIR/core/src/cmp.rs:LL:COL + debug other => _14; // in scope 6 at $SRC_DIR/core/src/cmp.rs:LL:COL + let mut _41: &usize; // in scope 6 at $SRC_DIR/core/src/cmp.rs:LL:COL + let mut _42: &usize; // in scope 6 at $SRC_DIR/core/src/cmp.rs:LL:COL + scope 7 (inlined cmp::impls::<impl PartialOrd for usize>::le) { // at $SRC_DIR/core/src/cmp.rs:LL:COL + debug self => _41; // in scope 7 at $SRC_DIR/core/src/cmp.rs:LL:COL + debug other => _42; // in scope 7 at $SRC_DIR/core/src/cmp.rs:LL:COL + let mut _45: usize; // in scope 7 at $SRC_DIR/core/src/cmp.rs:LL:COL + let mut _46: usize; // in scope 7 at $SRC_DIR/core/src/cmp.rs:LL:COL + } + } + scope 8 (inlined cmp::impls::<impl PartialOrd for &usize>::le) { // at $DIR/slice_filter.rs:8:70: 8:76 + debug self => _22; // in scope 8 at $SRC_DIR/core/src/cmp.rs:LL:COL + debug other => _23; // in scope 8 at $SRC_DIR/core/src/cmp.rs:LL:COL + let mut _47: &usize; // in scope 8 at $SRC_DIR/core/src/cmp.rs:LL:COL + let mut _48: &usize; // in scope 8 at $SRC_DIR/core/src/cmp.rs:LL:COL + scope 9 (inlined cmp::impls::<impl PartialOrd for usize>::le) { // at $SRC_DIR/core/src/cmp.rs:LL:COL + debug self => _47; // in scope 9 at $SRC_DIR/core/src/cmp.rs:LL:COL + debug other => _48; // in scope 9 at $SRC_DIR/core/src/cmp.rs:LL:COL + let mut _51: usize; // in scope 9 at $SRC_DIR/core/src/cmp.rs:LL:COL + let mut _52: usize; // in scope 9 at $SRC_DIR/core/src/cmp.rs:LL:COL + } + } + } + + bb0: { + StorageLive(_3); // scope 0 at $DIR/slice_filter.rs:+0:27: +0:28 + _25 = deref_copy (*_2); // scope 0 at $DIR/slice_filter.rs:+0:27: +0:28 + _3 = &((*_25).0: usize); // scope 0 at $DIR/slice_filter.rs:+0:27: +0:28 + StorageLive(_4); // scope 0 at $DIR/slice_filter.rs:+0:30: +0:31 + _26 = deref_copy (*_2); // scope 0 at $DIR/slice_filter.rs:+0:30: +0:31 + _4 = &((*_26).1: usize); // scope 0 at $DIR/slice_filter.rs:+0:30: +0:31 + StorageLive(_5); // scope 0 at $DIR/slice_filter.rs:+0:33: +0:34 + _27 = deref_copy (*_2); // scope 0 at $DIR/slice_filter.rs:+0:33: +0:34 + _5 = &((*_27).2: usize); // scope 0 at $DIR/slice_filter.rs:+0:33: +0:34 + StorageLive(_6); // scope 0 at $DIR/slice_filter.rs:+0:36: +0:37 + _28 = deref_copy (*_2); // scope 0 at $DIR/slice_filter.rs:+0:36: +0:37 + _6 = &((*_28).3: usize); // scope 0 at $DIR/slice_filter.rs:+0:36: +0:37 + StorageLive(_7); // scope 1 at $DIR/slice_filter.rs:+0:40: +0:56 + StorageLive(_8); // scope 1 at $DIR/slice_filter.rs:+0:40: +0:46 + StorageLive(_9); // scope 1 at $DIR/slice_filter.rs:+0:40: +0:41 + _9 = &_3; // scope 1 at $DIR/slice_filter.rs:+0:40: +0:41 + StorageLive(_10); // scope 1 at $DIR/slice_filter.rs:+0:45: +0:46 + StorageLive(_11); // scope 1 at $DIR/slice_filter.rs:+0:45: +0:46 + _11 = _5; // scope 1 at $DIR/slice_filter.rs:+0:45: +0:46 + _10 = &_11; // scope 1 at $DIR/slice_filter.rs:+0:45: +0:46 +- _29 = deref_copy (*_9); // scope 2 at $SRC_DIR/core/src/cmp.rs:LL:COL +- _30 = deref_copy (*_10); // scope 2 at $SRC_DIR/core/src/cmp.rs:LL:COL ++ _29 = deref_copy _3; // scope 2 at $SRC_DIR/core/src/cmp.rs:LL:COL ++ _30 = deref_copy _11; // scope 2 at $SRC_DIR/core/src/cmp.rs:LL:COL + StorageLive(_33); // scope 3 at $SRC_DIR/core/src/cmp.rs:LL:COL + _33 = (*_29); // scope 3 at $SRC_DIR/core/src/cmp.rs:LL:COL + StorageLive(_34); // scope 3 at $SRC_DIR/core/src/cmp.rs:LL:COL + _34 = (*_30); // scope 3 at $SRC_DIR/core/src/cmp.rs:LL:COL + _8 = Le(move _33, move _34); // scope 3 at $SRC_DIR/core/src/cmp.rs:LL:COL + StorageDead(_34); // scope 3 at $SRC_DIR/core/src/cmp.rs:LL:COL + StorageDead(_33); // scope 3 at $SRC_DIR/core/src/cmp.rs:LL:COL + StorageDead(_11); // scope 1 at $DIR/slice_filter.rs:+0:45: +0:46 + StorageDead(_10); // scope 1 at $DIR/slice_filter.rs:+0:45: +0:46 + StorageDead(_9); // scope 1 at $DIR/slice_filter.rs:+0:45: +0:46 + switchInt(move _8) -> [0: bb4, otherwise: bb5]; // scope 1 at $DIR/slice_filter.rs:+0:40: +0:56 + } + + bb1: { + _0 = const true; // scope 1 at $DIR/slice_filter.rs:+0:40: +0:76 + goto -> bb3; // scope 1 at $DIR/slice_filter.rs:+0:40: +0:76 + } + + bb2: { + StorageLive(_16); // scope 1 at $DIR/slice_filter.rs:+0:60: +0:76 + StorageLive(_17); // scope 1 at $DIR/slice_filter.rs:+0:60: +0:66 + StorageLive(_18); // scope 1 at $DIR/slice_filter.rs:+0:60: +0:61 + _18 = &_5; // scope 1 at $DIR/slice_filter.rs:+0:60: +0:61 + StorageLive(_19); // scope 1 at $DIR/slice_filter.rs:+0:65: +0:66 + StorageLive(_20); // scope 1 at $DIR/slice_filter.rs:+0:65: +0:66 + _20 = _3; // scope 1 at $DIR/slice_filter.rs:+0:65: +0:66 + _19 = &_20; // scope 1 at $DIR/slice_filter.rs:+0:65: +0:66 +- _35 = deref_copy (*_18); // scope 4 at $SRC_DIR/core/src/cmp.rs:LL:COL +- _36 = deref_copy (*_19); // scope 4 at $SRC_DIR/core/src/cmp.rs:LL:COL ++ _35 = deref_copy _5; // scope 4 at $SRC_DIR/core/src/cmp.rs:LL:COL ++ _36 = deref_copy _20; // scope 4 at $SRC_DIR/core/src/cmp.rs:LL:COL + StorageLive(_39); // scope 5 at $SRC_DIR/core/src/cmp.rs:LL:COL + _39 = (*_35); // scope 5 at $SRC_DIR/core/src/cmp.rs:LL:COL + StorageLive(_40); // scope 5 at $SRC_DIR/core/src/cmp.rs:LL:COL + _40 = (*_36); // scope 5 at $SRC_DIR/core/src/cmp.rs:LL:COL + _17 = Le(move _39, move _40); // scope 5 at $SRC_DIR/core/src/cmp.rs:LL:COL + StorageDead(_40); // scope 5 at $SRC_DIR/core/src/cmp.rs:LL:COL + StorageDead(_39); // scope 5 at $SRC_DIR/core/src/cmp.rs:LL:COL + StorageDead(_20); // scope 1 at $DIR/slice_filter.rs:+0:65: +0:66 + StorageDead(_19); // scope 1 at $DIR/slice_filter.rs:+0:65: +0:66 + StorageDead(_18); // scope 1 at $DIR/slice_filter.rs:+0:65: +0:66 + switchInt(move _17) -> [0: bb6, otherwise: bb7]; // scope 1 at $DIR/slice_filter.rs:+0:60: +0:76 + } + + bb3: { + StorageDead(_16); // scope 1 at $DIR/slice_filter.rs:+0:75: +0:76 + StorageDead(_7); // scope 1 at $DIR/slice_filter.rs:+0:75: +0:76 + StorageDead(_6); // scope 0 at $DIR/slice_filter.rs:+0:75: +0:76 + StorageDead(_5); // scope 0 at $DIR/slice_filter.rs:+0:75: +0:76 + StorageDead(_4); // scope 0 at $DIR/slice_filter.rs:+0:75: +0:76 + StorageDead(_3); // scope 0 at $DIR/slice_filter.rs:+0:75: +0:76 + return; // scope 0 at $DIR/slice_filter.rs:+0:76: +0:76 + } + + bb4: { + _7 = const false; // scope 1 at $DIR/slice_filter.rs:+0:40: +0:56 + StorageDead(_12); // scope 1 at $DIR/slice_filter.rs:+0:55: +0:56 + StorageDead(_8); // scope 1 at $DIR/slice_filter.rs:+0:55: +0:56 + goto -> bb2; // scope 1 at $DIR/slice_filter.rs:+0:40: +0:56 + } + + bb5: { + StorageLive(_12); // scope 1 at $DIR/slice_filter.rs:+0:50: +0:56 + StorageLive(_13); // scope 1 at $DIR/slice_filter.rs:+0:50: +0:51 + _13 = &_6; // scope 1 at $DIR/slice_filter.rs:+0:50: +0:51 + StorageLive(_14); // scope 1 at $DIR/slice_filter.rs:+0:55: +0:56 + StorageLive(_15); // scope 1 at $DIR/slice_filter.rs:+0:55: +0:56 + _15 = _4; // scope 1 at $DIR/slice_filter.rs:+0:55: +0:56 + _14 = &_15; // scope 1 at $DIR/slice_filter.rs:+0:55: +0:56 +- _41 = deref_copy (*_13); // scope 6 at $SRC_DIR/core/src/cmp.rs:LL:COL +- _42 = deref_copy (*_14); // scope 6 at $SRC_DIR/core/src/cmp.rs:LL:COL ++ _41 = deref_copy _6; // scope 6 at $SRC_DIR/core/src/cmp.rs:LL:COL ++ _42 = deref_copy _15; // scope 6 at $SRC_DIR/core/src/cmp.rs:LL:COL + StorageLive(_45); // scope 7 at $SRC_DIR/core/src/cmp.rs:LL:COL + _45 = (*_41); // scope 7 at $SRC_DIR/core/src/cmp.rs:LL:COL + StorageLive(_46); // scope 7 at $SRC_DIR/core/src/cmp.rs:LL:COL + _46 = (*_42); // scope 7 at $SRC_DIR/core/src/cmp.rs:LL:COL + _12 = Le(move _45, move _46); // scope 7 at $SRC_DIR/core/src/cmp.rs:LL:COL + StorageDead(_46); // scope 7 at $SRC_DIR/core/src/cmp.rs:LL:COL + StorageDead(_45); // scope 7 at $SRC_DIR/core/src/cmp.rs:LL:COL + StorageDead(_15); // scope 1 at $DIR/slice_filter.rs:+0:55: +0:56 + StorageDead(_14); // scope 1 at $DIR/slice_filter.rs:+0:55: +0:56 + StorageDead(_13); // scope 1 at $DIR/slice_filter.rs:+0:55: +0:56 + _7 = move _12; // scope 1 at $DIR/slice_filter.rs:+0:40: +0:56 + StorageDead(_12); // scope 1 at $DIR/slice_filter.rs:+0:55: +0:56 + StorageDead(_8); // scope 1 at $DIR/slice_filter.rs:+0:55: +0:56 + switchInt(move _7) -> [0: bb2, otherwise: bb1]; // scope 1 at $DIR/slice_filter.rs:+0:40: +0:76 + } + + bb6: { + _16 = const false; // scope 1 at $DIR/slice_filter.rs:+0:60: +0:76 + goto -> bb8; // scope 1 at $DIR/slice_filter.rs:+0:60: +0:76 + } + + bb7: { + StorageLive(_21); // scope 1 at $DIR/slice_filter.rs:+0:70: +0:76 + StorageLive(_22); // scope 1 at $DIR/slice_filter.rs:+0:70: +0:71 + _22 = &_4; // scope 1 at $DIR/slice_filter.rs:+0:70: +0:71 + StorageLive(_23); // scope 1 at $DIR/slice_filter.rs:+0:75: +0:76 + StorageLive(_24); // scope 1 at $DIR/slice_filter.rs:+0:75: +0:76 + _24 = _6; // scope 1 at $DIR/slice_filter.rs:+0:75: +0:76 + _23 = &_24; // scope 1 at $DIR/slice_filter.rs:+0:75: +0:76 +- _47 = deref_copy (*_22); // scope 8 at $SRC_DIR/core/src/cmp.rs:LL:COL +- _48 = deref_copy (*_23); // scope 8 at $SRC_DIR/core/src/cmp.rs:LL:COL ++ _47 = deref_copy _4; // scope 8 at $SRC_DIR/core/src/cmp.rs:LL:COL ++ _48 = deref_copy _24; // scope 8 at $SRC_DIR/core/src/cmp.rs:LL:COL + StorageLive(_51); // scope 9 at $SRC_DIR/core/src/cmp.rs:LL:COL + _51 = (*_47); // scope 9 at $SRC_DIR/core/src/cmp.rs:LL:COL + StorageLive(_52); // scope 9 at $SRC_DIR/core/src/cmp.rs:LL:COL + _52 = (*_48); // scope 9 at $SRC_DIR/core/src/cmp.rs:LL:COL + _21 = Le(move _51, move _52); // scope 9 at $SRC_DIR/core/src/cmp.rs:LL:COL + StorageDead(_52); // scope 9 at $SRC_DIR/core/src/cmp.rs:LL:COL + StorageDead(_51); // scope 9 at $SRC_DIR/core/src/cmp.rs:LL:COL + StorageDead(_24); // scope 1 at $DIR/slice_filter.rs:+0:75: +0:76 + StorageDead(_23); // scope 1 at $DIR/slice_filter.rs:+0:75: +0:76 + StorageDead(_22); // scope 1 at $DIR/slice_filter.rs:+0:75: +0:76 + _16 = move _21; // scope 1 at $DIR/slice_filter.rs:+0:60: +0:76 + goto -> bb8; // scope 1 at $DIR/slice_filter.rs:+0:60: +0:76 + } + + bb8: { + StorageDead(_21); // scope 1 at $DIR/slice_filter.rs:+0:75: +0:76 + StorageDead(_17); // scope 1 at $DIR/slice_filter.rs:+0:75: +0:76 + _0 = move _16; // scope 1 at $DIR/slice_filter.rs:+0:40: +0:76 + goto -> bb3; // scope 1 at $DIR/slice_filter.rs:+0:40: +0:76 + } + } + diff --git a/tests/mir-opt/slice_filter.variant_b-{closure#0}.ReferencePropagation.diff b/tests/mir-opt/slice_filter.variant_b-{closure#0}.ReferencePropagation.diff new file mode 100644 index 00000000000..d1241c6b024 --- /dev/null +++ b/tests/mir-opt/slice_filter.variant_b-{closure#0}.ReferencePropagation.diff @@ -0,0 +1,103 @@ +- // MIR for `variant_b::{closure#0}` before ReferencePropagation ++ // MIR for `variant_b::{closure#0}` after ReferencePropagation + + fn variant_b::{closure#0}(_1: &mut [closure@$DIR/slice_filter.rs:12:25: 12:41], _2: &&(usize, usize, usize, usize)) -> bool { + let mut _0: bool; // return place in scope 0 at $DIR/slice_filter.rs:+0:42: +0:42 + let _3: usize; // in scope 0 at $DIR/slice_filter.rs:+0:29: +0:30 + let _4: usize; // in scope 0 at $DIR/slice_filter.rs:+0:32: +0:33 + let _5: usize; // in scope 0 at $DIR/slice_filter.rs:+0:35: +0:36 + let _6: usize; // in scope 0 at $DIR/slice_filter.rs:+0:38: +0:39 + let mut _7: bool; // in scope 0 at $DIR/slice_filter.rs:+0:42: +0:58 + let mut _8: bool; // in scope 0 at $DIR/slice_filter.rs:+0:42: +0:48 + let mut _9: usize; // in scope 0 at $DIR/slice_filter.rs:+0:42: +0:43 + let mut _10: usize; // in scope 0 at $DIR/slice_filter.rs:+0:47: +0:48 + let mut _11: bool; // in scope 0 at $DIR/slice_filter.rs:+0:52: +0:58 + let mut _12: usize; // in scope 0 at $DIR/slice_filter.rs:+0:52: +0:53 + let mut _13: usize; // in scope 0 at $DIR/slice_filter.rs:+0:57: +0:58 + let mut _14: bool; // in scope 0 at $DIR/slice_filter.rs:+0:62: +0:78 + let mut _15: bool; // in scope 0 at $DIR/slice_filter.rs:+0:62: +0:68 + let mut _16: usize; // in scope 0 at $DIR/slice_filter.rs:+0:62: +0:63 + let mut _17: usize; // in scope 0 at $DIR/slice_filter.rs:+0:67: +0:68 + let mut _18: bool; // in scope 0 at $DIR/slice_filter.rs:+0:72: +0:78 + let mut _19: usize; // in scope 0 at $DIR/slice_filter.rs:+0:72: +0:73 + let mut _20: usize; // in scope 0 at $DIR/slice_filter.rs:+0:77: +0:78 + let mut _21: &(usize, usize, usize, usize); // in scope 0 at $DIR/slice_filter.rs:+0:26: +0:40 + let mut _22: &(usize, usize, usize, usize); // in scope 0 at $DIR/slice_filter.rs:+0:26: +0:40 + let mut _23: &(usize, usize, usize, usize); // in scope 0 at $DIR/slice_filter.rs:+0:26: +0:40 + let mut _24: &(usize, usize, usize, usize); // in scope 0 at $DIR/slice_filter.rs:+0:26: +0:40 + scope 1 { + debug a => _3; // in scope 1 at $DIR/slice_filter.rs:+0:29: +0:30 + debug b => _4; // in scope 1 at $DIR/slice_filter.rs:+0:32: +0:33 + debug c => _5; // in scope 1 at $DIR/slice_filter.rs:+0:35: +0:36 + debug d => _6; // in scope 1 at $DIR/slice_filter.rs:+0:38: +0:39 + } + + bb0: { + _21 = deref_copy (*_2); // scope 0 at $DIR/slice_filter.rs:+0:29: +0:30 + _3 = ((*_21).0: usize); // scope 0 at $DIR/slice_filter.rs:+0:29: +0:30 + _22 = deref_copy (*_2); // scope 0 at $DIR/slice_filter.rs:+0:32: +0:33 + _4 = ((*_22).1: usize); // scope 0 at $DIR/slice_filter.rs:+0:32: +0:33 + _23 = deref_copy (*_2); // scope 0 at $DIR/slice_filter.rs:+0:35: +0:36 + _5 = ((*_23).2: usize); // scope 0 at $DIR/slice_filter.rs:+0:35: +0:36 + _24 = deref_copy (*_2); // scope 0 at $DIR/slice_filter.rs:+0:38: +0:39 + _6 = ((*_24).3: usize); // scope 0 at $DIR/slice_filter.rs:+0:38: +0:39 + StorageLive(_7); // scope 1 at $DIR/slice_filter.rs:+0:42: +0:58 + StorageLive(_8); // scope 1 at $DIR/slice_filter.rs:+0:42: +0:48 + _8 = Le(_3, _5); // scope 1 at $DIR/slice_filter.rs:+0:42: +0:48 + switchInt(move _8) -> [0: bb4, otherwise: bb5]; // scope 1 at $DIR/slice_filter.rs:+0:42: +0:58 + } + + bb1: { + _0 = const true; // scope 1 at $DIR/slice_filter.rs:+0:42: +0:78 + goto -> bb3; // scope 1 at $DIR/slice_filter.rs:+0:42: +0:78 + } + + bb2: { + StorageLive(_14); // scope 1 at $DIR/slice_filter.rs:+0:62: +0:78 + StorageLive(_15); // scope 1 at $DIR/slice_filter.rs:+0:62: +0:68 + _15 = Le(_5, _3); // scope 1 at $DIR/slice_filter.rs:+0:62: +0:68 + switchInt(move _15) -> [0: bb6, otherwise: bb7]; // scope 1 at $DIR/slice_filter.rs:+0:62: +0:78 + } + + bb3: { + StorageDead(_14); // scope 1 at $DIR/slice_filter.rs:+0:77: +0:78 + StorageDead(_7); // scope 1 at $DIR/slice_filter.rs:+0:77: +0:78 + return; // scope 0 at $DIR/slice_filter.rs:+0:78: +0:78 + } + + bb4: { + _7 = const false; // scope 1 at $DIR/slice_filter.rs:+0:42: +0:58 + StorageDead(_11); // scope 1 at $DIR/slice_filter.rs:+0:57: +0:58 + StorageDead(_8); // scope 1 at $DIR/slice_filter.rs:+0:57: +0:58 + goto -> bb2; // scope 1 at $DIR/slice_filter.rs:+0:42: +0:58 + } + + bb5: { + StorageLive(_11); // scope 1 at $DIR/slice_filter.rs:+0:52: +0:58 + _11 = Le(_6, _4); // scope 1 at $DIR/slice_filter.rs:+0:52: +0:58 + _7 = move _11; // scope 1 at $DIR/slice_filter.rs:+0:42: +0:58 + StorageDead(_11); // scope 1 at $DIR/slice_filter.rs:+0:57: +0:58 + StorageDead(_8); // scope 1 at $DIR/slice_filter.rs:+0:57: +0:58 + switchInt(move _7) -> [0: bb2, otherwise: bb1]; // scope 1 at $DIR/slice_filter.rs:+0:42: +0:78 + } + + bb6: { + _14 = const false; // scope 1 at $DIR/slice_filter.rs:+0:62: +0:78 + goto -> bb8; // scope 1 at $DIR/slice_filter.rs:+0:62: +0:78 + } + + bb7: { + StorageLive(_18); // scope 1 at $DIR/slice_filter.rs:+0:72: +0:78 + _18 = Le(_4, _6); // scope 1 at $DIR/slice_filter.rs:+0:72: +0:78 + _14 = move _18; // scope 1 at $DIR/slice_filter.rs:+0:62: +0:78 + goto -> bb8; // scope 1 at $DIR/slice_filter.rs:+0:62: +0:78 + } + + bb8: { + StorageDead(_18); // scope 1 at $DIR/slice_filter.rs:+0:77: +0:78 + StorageDead(_15); // scope 1 at $DIR/slice_filter.rs:+0:77: +0:78 + _0 = move _14; // scope 1 at $DIR/slice_filter.rs:+0:42: +0:78 + goto -> bb3; // scope 1 at $DIR/slice_filter.rs:+0:42: +0:78 + } + } + |