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| author | Camille GILLOT <gillot.camille@gmail.com> | 2022-12-04 18:26:09 +0000 |
|---|---|---|
| committer | Camille GILLOT <gillot.camille@gmail.com> | 2023-05-09 17:59:34 +0000 |
| commit | 34903755701a5595ee4bab3bb89de15c5469cd3e (patch) | |
| tree | 86d662115d239932ad2f5f5ebddf431be78ce84a /tests/mir-opt/reference_prop.maybe_dead.ReferencePropagation.diff | |
| parent | f7b831ac8a897273f78b9f47165cf8e54066ce4b (diff) | |
| download | rust-34903755701a5595ee4bab3bb89de15c5469cd3e.tar.gz rust-34903755701a5595ee4bab3bb89de15c5469cd3e.zip | |
Implement SSA-based reference propagation.
Diffstat (limited to 'tests/mir-opt/reference_prop.maybe_dead.ReferencePropagation.diff')
| -rw-r--r-- | tests/mir-opt/reference_prop.maybe_dead.ReferencePropagation.diff | 50 |
1 files changed, 50 insertions, 0 deletions
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..9dac0b333b8 --- /dev/null +++ b/tests/mir-opt/reference_prop.maybe_dead.ReferencePropagation.diff @@ -0,0 +1,50 @@ +- // 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 + + 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 + switchInt(_1) -> [1: bb1, otherwise: bb2]; // scope 0 at $DIR/reference_prop.rs:+15:13: +15:46 + } + + bb1: { + StorageDead(_2); // scope 0 at $DIR/reference_prop.rs:+18:13: +18:27 + StorageDead(_3); // scope 0 at $DIR/reference_prop.rs:+19:13: +19:27 + goto -> bb2; // scope 0 at $DIR/reference_prop.rs:+20:13: +20:22 + } + + bb2: { + _6 = (*_4); // scope 0 at $SRC_DIR/core/src/intrinsics/mir.rs:LL:COL + _0 = opaque::<i32>(_6) -> bb3; // scope 0 at $DIR/reference_prop.rs:+25:13: +25:38 + // mir::Constant + // + span: $DIR/reference_prop.rs:394:28: 394:34 + // + literal: Const { ty: fn(i32) {opaque::<i32>}, val: Value(<ZST>) } + } + + bb3: { + _7 = (*_5); // scope 0 at $SRC_DIR/core/src/intrinsics/mir.rs:LL:COL + _0 = opaque::<i32>(_7) -> bb4; // scope 0 at $DIR/reference_prop.rs:+31:13: +31:43 + // mir::Constant + // + span: $DIR/reference_prop.rs:400:33: 400:39 + // + literal: Const { ty: fn(i32) {opaque::<i32>}, val: Value(<ZST>) } + } + + bb4: { + return; // scope 0 at $DIR/reference_prop.rs:+34:13: +34:21 + } + } + |