diff options
| author | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-17 12:02:58 +0000 |
|---|---|---|
| committer | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-17 12:02:58 +0000 |
| commit | 698f8c2f01ea549d77d7dc3338a12e04c11057b9 (patch) | |
| tree | 173a775858bd501c378080a10dca74132f05bc50 /src/test/mir-opt/const_prop | |
| parent | Initial commit. (diff) | |
| download | rustc-698f8c2f01ea549d77d7dc3338a12e04c11057b9.tar.xz rustc-698f8c2f01ea549d77d7dc3338a12e04c11057b9.zip | |
Adding upstream version 1.64.0+dfsg1.upstream/1.64.0+dfsg1
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
Diffstat (limited to 'src/test/mir-opt/const_prop')
84 files changed, 2278 insertions, 0 deletions
diff --git a/src/test/mir-opt/const_prop/aggregate.main.ConstProp.diff b/src/test/mir-opt/const_prop/aggregate.main.ConstProp.diff new file mode 100644 index 000000000..836443bf4 --- /dev/null +++ b/src/test/mir-opt/const_prop/aggregate.main.ConstProp.diff @@ -0,0 +1,32 @@ +- // MIR for `main` before ConstProp ++ // MIR for `main` after ConstProp + + fn main() -> () { + let mut _0: (); // return place in scope 0 at $DIR/aggregate.rs:+0:11: +0:11 + let _1: i32; // in scope 0 at $DIR/aggregate.rs:+1:9: +1:10 + let mut _2: i32; // in scope 0 at $DIR/aggregate.rs:+1:13: +1:24 + let mut _3: (i32, i32, i32); // in scope 0 at $DIR/aggregate.rs:+1:13: +1:22 + scope 1 { + debug x => _1; // in scope 1 at $DIR/aggregate.rs:+1:9: +1:10 + } + + bb0: { + StorageLive(_1); // scope 0 at $DIR/aggregate.rs:+1:9: +1:10 + StorageLive(_2); // scope 0 at $DIR/aggregate.rs:+1:13: +1:24 + StorageLive(_3); // scope 0 at $DIR/aggregate.rs:+1:13: +1:22 + Deinit(_3); // scope 0 at $DIR/aggregate.rs:+1:13: +1:22 + (_3.0: i32) = const 0_i32; // scope 0 at $DIR/aggregate.rs:+1:13: +1:22 + (_3.1: i32) = const 1_i32; // scope 0 at $DIR/aggregate.rs:+1:13: +1:22 + (_3.2: i32) = const 2_i32; // scope 0 at $DIR/aggregate.rs:+1:13: +1:22 +- _2 = (_3.1: i32); // scope 0 at $DIR/aggregate.rs:+1:13: +1:24 +- _1 = Add(move _2, const 0_i32); // scope 0 at $DIR/aggregate.rs:+1:13: +1:28 ++ _2 = const 1_i32; // scope 0 at $DIR/aggregate.rs:+1:13: +1:24 ++ _1 = const 1_i32; // scope 0 at $DIR/aggregate.rs:+1:13: +1:28 + StorageDead(_2); // scope 0 at $DIR/aggregate.rs:+1:27: +1:28 + StorageDead(_3); // scope 0 at $DIR/aggregate.rs:+1:28: +1:29 + nop; // scope 0 at $DIR/aggregate.rs:+0:11: +2:2 + StorageDead(_1); // scope 0 at $DIR/aggregate.rs:+2:1: +2:2 + return; // scope 0 at $DIR/aggregate.rs:+2:2: +2:2 + } + } + diff --git a/src/test/mir-opt/const_prop/aggregate.rs b/src/test/mir-opt/const_prop/aggregate.rs new file mode 100644 index 000000000..7a3b26a73 --- /dev/null +++ b/src/test/mir-opt/const_prop/aggregate.rs @@ -0,0 +1,6 @@ +// compile-flags: -O + +// EMIT_MIR aggregate.main.ConstProp.diff +fn main() { + let x = (0, 1, 2).1 + 0; +} diff --git a/src/test/mir-opt/const_prop/array_index.main.ConstProp.32bit.diff b/src/test/mir-opt/const_prop/array_index.main.ConstProp.32bit.diff new file mode 100644 index 000000000..bb9abdd10 --- /dev/null +++ b/src/test/mir-opt/const_prop/array_index.main.ConstProp.32bit.diff @@ -0,0 +1,38 @@ +- // MIR for `main` before ConstProp ++ // MIR for `main` after ConstProp + + fn main() -> () { + let mut _0: (); // return place in scope 0 at $DIR/array_index.rs:+0:11: +0:11 + let _1: u32; // in scope 0 at $DIR/array_index.rs:+1:9: +1:10 + let mut _2: [u32; 4]; // in scope 0 at $DIR/array_index.rs:+1:18: +1:30 + let _3: usize; // in scope 0 at $DIR/array_index.rs:+1:31: +1:32 + let mut _4: usize; // in scope 0 at $DIR/array_index.rs:+1:18: +1:33 + let mut _5: bool; // in scope 0 at $DIR/array_index.rs:+1:18: +1:33 + scope 1 { + debug x => _1; // in scope 1 at $DIR/array_index.rs:+1:9: +1:10 + } + + bb0: { + StorageLive(_1); // scope 0 at $DIR/array_index.rs:+1:9: +1:10 + StorageLive(_2); // scope 0 at $DIR/array_index.rs:+1:18: +1:30 + _2 = [const 0_u32, const 1_u32, const 2_u32, const 3_u32]; // scope 0 at $DIR/array_index.rs:+1:18: +1:30 + StorageLive(_3); // scope 0 at $DIR/array_index.rs:+1:31: +1:32 + _3 = const 2_usize; // scope 0 at $DIR/array_index.rs:+1:31: +1:32 + _4 = const 4_usize; // scope 0 at $DIR/array_index.rs:+1:18: +1:33 +- _5 = Lt(_3, _4); // scope 0 at $DIR/array_index.rs:+1:18: +1:33 +- assert(move _5, "index out of bounds: the length is {} but the index is {}", move _4, _3) -> bb1; // scope 0 at $DIR/array_index.rs:+1:18: +1:33 ++ _5 = const true; // scope 0 at $DIR/array_index.rs:+1:18: +1:33 ++ assert(const true, "index out of bounds: the length is {} but the index is {}", const 4_usize, const 2_usize) -> bb1; // scope 0 at $DIR/array_index.rs:+1:18: +1:33 + } + + bb1: { +- _1 = _2[_3]; // scope 0 at $DIR/array_index.rs:+1:18: +1:33 ++ _1 = const 2_u32; // scope 0 at $DIR/array_index.rs:+1:18: +1:33 + StorageDead(_3); // scope 0 at $DIR/array_index.rs:+1:33: +1:34 + StorageDead(_2); // scope 0 at $DIR/array_index.rs:+1:33: +1:34 + nop; // scope 0 at $DIR/array_index.rs:+0:11: +2:2 + StorageDead(_1); // scope 0 at $DIR/array_index.rs:+2:1: +2:2 + return; // scope 0 at $DIR/array_index.rs:+2:2: +2:2 + } + } + diff --git a/src/test/mir-opt/const_prop/array_index.main.ConstProp.64bit.diff b/src/test/mir-opt/const_prop/array_index.main.ConstProp.64bit.diff new file mode 100644 index 000000000..bb9abdd10 --- /dev/null +++ b/src/test/mir-opt/const_prop/array_index.main.ConstProp.64bit.diff @@ -0,0 +1,38 @@ +- // MIR for `main` before ConstProp ++ // MIR for `main` after ConstProp + + fn main() -> () { + let mut _0: (); // return place in scope 0 at $DIR/array_index.rs:+0:11: +0:11 + let _1: u32; // in scope 0 at $DIR/array_index.rs:+1:9: +1:10 + let mut _2: [u32; 4]; // in scope 0 at $DIR/array_index.rs:+1:18: +1:30 + let _3: usize; // in scope 0 at $DIR/array_index.rs:+1:31: +1:32 + let mut _4: usize; // in scope 0 at $DIR/array_index.rs:+1:18: +1:33 + let mut _5: bool; // in scope 0 at $DIR/array_index.rs:+1:18: +1:33 + scope 1 { + debug x => _1; // in scope 1 at $DIR/array_index.rs:+1:9: +1:10 + } + + bb0: { + StorageLive(_1); // scope 0 at $DIR/array_index.rs:+1:9: +1:10 + StorageLive(_2); // scope 0 at $DIR/array_index.rs:+1:18: +1:30 + _2 = [const 0_u32, const 1_u32, const 2_u32, const 3_u32]; // scope 0 at $DIR/array_index.rs:+1:18: +1:30 + StorageLive(_3); // scope 0 at $DIR/array_index.rs:+1:31: +1:32 + _3 = const 2_usize; // scope 0 at $DIR/array_index.rs:+1:31: +1:32 + _4 = const 4_usize; // scope 0 at $DIR/array_index.rs:+1:18: +1:33 +- _5 = Lt(_3, _4); // scope 0 at $DIR/array_index.rs:+1:18: +1:33 +- assert(move _5, "index out of bounds: the length is {} but the index is {}", move _4, _3) -> bb1; // scope 0 at $DIR/array_index.rs:+1:18: +1:33 ++ _5 = const true; // scope 0 at $DIR/array_index.rs:+1:18: +1:33 ++ assert(const true, "index out of bounds: the length is {} but the index is {}", const 4_usize, const 2_usize) -> bb1; // scope 0 at $DIR/array_index.rs:+1:18: +1:33 + } + + bb1: { +- _1 = _2[_3]; // scope 0 at $DIR/array_index.rs:+1:18: +1:33 ++ _1 = const 2_u32; // scope 0 at $DIR/array_index.rs:+1:18: +1:33 + StorageDead(_3); // scope 0 at $DIR/array_index.rs:+1:33: +1:34 + StorageDead(_2); // scope 0 at $DIR/array_index.rs:+1:33: +1:34 + nop; // scope 0 at $DIR/array_index.rs:+0:11: +2:2 + StorageDead(_1); // scope 0 at $DIR/array_index.rs:+2:1: +2:2 + return; // scope 0 at $DIR/array_index.rs:+2:2: +2:2 + } + } + diff --git a/src/test/mir-opt/const_prop/array_index.rs b/src/test/mir-opt/const_prop/array_index.rs new file mode 100644 index 000000000..2c5254b5d --- /dev/null +++ b/src/test/mir-opt/const_prop/array_index.rs @@ -0,0 +1,6 @@ +// EMIT_MIR_FOR_EACH_BIT_WIDTH + +// EMIT_MIR array_index.main.ConstProp.diff +fn main() { + let x: u32 = [0, 1, 2, 3][2]; +} diff --git a/src/test/mir-opt/const_prop/bad_op_div_by_zero.main.ConstProp.diff b/src/test/mir-opt/const_prop/bad_op_div_by_zero.main.ConstProp.diff new file mode 100644 index 000000000..45134a3fd --- /dev/null +++ b/src/test/mir-opt/const_prop/bad_op_div_by_zero.main.ConstProp.diff @@ -0,0 +1,54 @@ +- // MIR for `main` before ConstProp ++ // MIR for `main` after ConstProp + + fn main() -> () { + let mut _0: (); // return place in scope 0 at $DIR/bad_op_div_by_zero.rs:+0:11: +0:11 + let _1: i32; // in scope 0 at $DIR/bad_op_div_by_zero.rs:+1:9: +1:10 + let mut _3: i32; // in scope 0 at $DIR/bad_op_div_by_zero.rs:+2:18: +2:19 + let mut _4: bool; // in scope 0 at $DIR/bad_op_div_by_zero.rs:+2:14: +2:19 + let mut _5: bool; // in scope 0 at $DIR/bad_op_div_by_zero.rs:+2:14: +2:19 + let mut _6: bool; // in scope 0 at $DIR/bad_op_div_by_zero.rs:+2:14: +2:19 + let mut _7: bool; // in scope 0 at $DIR/bad_op_div_by_zero.rs:+2:14: +2:19 + scope 1 { + debug y => _1; // in scope 1 at $DIR/bad_op_div_by_zero.rs:+1:9: +1:10 + let _2: i32; // in scope 1 at $DIR/bad_op_div_by_zero.rs:+2:9: +2:11 + scope 2 { + debug _z => _2; // in scope 2 at $DIR/bad_op_div_by_zero.rs:+2:9: +2:11 + } + } + + bb0: { + StorageLive(_1); // scope 0 at $DIR/bad_op_div_by_zero.rs:+1:9: +1:10 + _1 = const 0_i32; // scope 0 at $DIR/bad_op_div_by_zero.rs:+1:13: +1:14 + StorageLive(_2); // scope 1 at $DIR/bad_op_div_by_zero.rs:+2:9: +2:11 + StorageLive(_3); // scope 1 at $DIR/bad_op_div_by_zero.rs:+2:18: +2:19 +- _3 = _1; // scope 1 at $DIR/bad_op_div_by_zero.rs:+2:18: +2:19 +- _4 = Eq(_3, const 0_i32); // scope 1 at $DIR/bad_op_div_by_zero.rs:+2:14: +2:19 +- assert(!move _4, "attempt to divide `{}` by zero", const 1_i32) -> bb1; // scope 1 at $DIR/bad_op_div_by_zero.rs:+2:14: +2:19 ++ _3 = const 0_i32; // scope 1 at $DIR/bad_op_div_by_zero.rs:+2:18: +2:19 ++ _4 = const true; // scope 1 at $DIR/bad_op_div_by_zero.rs:+2:14: +2:19 ++ assert(!const true, "attempt to divide `{}` by zero", const 1_i32) -> bb1; // scope 1 at $DIR/bad_op_div_by_zero.rs:+2:14: +2:19 + } + + bb1: { +- _5 = Eq(_3, const -1_i32); // scope 1 at $DIR/bad_op_div_by_zero.rs:+2:14: +2:19 +- _6 = Eq(const 1_i32, const i32::MIN); // scope 1 at $DIR/bad_op_div_by_zero.rs:+2:14: +2:19 +- _7 = BitAnd(move _5, move _6); // scope 1 at $DIR/bad_op_div_by_zero.rs:+2:14: +2:19 +- assert(!move _7, "attempt to compute `{} / {}`, which would overflow", const 1_i32, _3) -> bb2; // scope 1 at $DIR/bad_op_div_by_zero.rs:+2:14: +2:19 ++ _5 = const false; // scope 1 at $DIR/bad_op_div_by_zero.rs:+2:14: +2:19 ++ _6 = const false; // scope 1 at $DIR/bad_op_div_by_zero.rs:+2:14: +2:19 ++ _7 = const false; // scope 1 at $DIR/bad_op_div_by_zero.rs:+2:14: +2:19 ++ assert(!const false, "attempt to compute `{} / {}`, which would overflow", const 1_i32, const 0_i32) -> bb2; // scope 1 at $DIR/bad_op_div_by_zero.rs:+2:14: +2:19 + } + + bb2: { +- _2 = Div(const 1_i32, move _3); // scope 1 at $DIR/bad_op_div_by_zero.rs:+2:14: +2:19 ++ _2 = Div(const 1_i32, const 0_i32); // scope 1 at $DIR/bad_op_div_by_zero.rs:+2:14: +2:19 + StorageDead(_3); // scope 1 at $DIR/bad_op_div_by_zero.rs:+2:18: +2:19 + nop; // scope 0 at $DIR/bad_op_div_by_zero.rs:+0:11: +3:2 + StorageDead(_2); // scope 1 at $DIR/bad_op_div_by_zero.rs:+3:1: +3:2 + StorageDead(_1); // scope 0 at $DIR/bad_op_div_by_zero.rs:+3:1: +3:2 + return; // scope 0 at $DIR/bad_op_div_by_zero.rs:+3:2: +3:2 + } + } + diff --git a/src/test/mir-opt/const_prop/bad_op_div_by_zero.rs b/src/test/mir-opt/const_prop/bad_op_div_by_zero.rs new file mode 100644 index 000000000..6f39209b9 --- /dev/null +++ b/src/test/mir-opt/const_prop/bad_op_div_by_zero.rs @@ -0,0 +1,6 @@ +// EMIT_MIR bad_op_div_by_zero.main.ConstProp.diff +#[allow(unconditional_panic)] +fn main() { + let y = 0; + let _z = 1 / y; +} diff --git a/src/test/mir-opt/const_prop/bad_op_mod_by_zero.main.ConstProp.diff b/src/test/mir-opt/const_prop/bad_op_mod_by_zero.main.ConstProp.diff new file mode 100644 index 000000000..221513042 --- /dev/null +++ b/src/test/mir-opt/const_prop/bad_op_mod_by_zero.main.ConstProp.diff @@ -0,0 +1,54 @@ +- // MIR for `main` before ConstProp ++ // MIR for `main` after ConstProp + + fn main() -> () { + let mut _0: (); // return place in scope 0 at $DIR/bad_op_mod_by_zero.rs:+0:11: +0:11 + let _1: i32; // in scope 0 at $DIR/bad_op_mod_by_zero.rs:+1:9: +1:10 + let mut _3: i32; // in scope 0 at $DIR/bad_op_mod_by_zero.rs:+2:18: +2:19 + let mut _4: bool; // in scope 0 at $DIR/bad_op_mod_by_zero.rs:+2:14: +2:19 + let mut _5: bool; // in scope 0 at $DIR/bad_op_mod_by_zero.rs:+2:14: +2:19 + let mut _6: bool; // in scope 0 at $DIR/bad_op_mod_by_zero.rs:+2:14: +2:19 + let mut _7: bool; // in scope 0 at $DIR/bad_op_mod_by_zero.rs:+2:14: +2:19 + scope 1 { + debug y => _1; // in scope 1 at $DIR/bad_op_mod_by_zero.rs:+1:9: +1:10 + let _2: i32; // in scope 1 at $DIR/bad_op_mod_by_zero.rs:+2:9: +2:11 + scope 2 { + debug _z => _2; // in scope 2 at $DIR/bad_op_mod_by_zero.rs:+2:9: +2:11 + } + } + + bb0: { + StorageLive(_1); // scope 0 at $DIR/bad_op_mod_by_zero.rs:+1:9: +1:10 + _1 = const 0_i32; // scope 0 at $DIR/bad_op_mod_by_zero.rs:+1:13: +1:14 + StorageLive(_2); // scope 1 at $DIR/bad_op_mod_by_zero.rs:+2:9: +2:11 + StorageLive(_3); // scope 1 at $DIR/bad_op_mod_by_zero.rs:+2:18: +2:19 +- _3 = _1; // scope 1 at $DIR/bad_op_mod_by_zero.rs:+2:18: +2:19 +- _4 = Eq(_3, const 0_i32); // scope 1 at $DIR/bad_op_mod_by_zero.rs:+2:14: +2:19 +- assert(!move _4, "attempt to calculate the remainder of `{}` with a divisor of zero", const 1_i32) -> bb1; // scope 1 at $DIR/bad_op_mod_by_zero.rs:+2:14: +2:19 ++ _3 = const 0_i32; // scope 1 at $DIR/bad_op_mod_by_zero.rs:+2:18: +2:19 ++ _4 = const true; // scope 1 at $DIR/bad_op_mod_by_zero.rs:+2:14: +2:19 ++ assert(!const true, "attempt to calculate the remainder of `{}` with a divisor of zero", const 1_i32) -> bb1; // scope 1 at $DIR/bad_op_mod_by_zero.rs:+2:14: +2:19 + } + + bb1: { +- _5 = Eq(_3, const -1_i32); // scope 1 at $DIR/bad_op_mod_by_zero.rs:+2:14: +2:19 +- _6 = Eq(const 1_i32, const i32::MIN); // scope 1 at $DIR/bad_op_mod_by_zero.rs:+2:14: +2:19 +- _7 = BitAnd(move _5, move _6); // scope 1 at $DIR/bad_op_mod_by_zero.rs:+2:14: +2:19 +- assert(!move _7, "attempt to compute the remainder of `{} % {}`, which would overflow", const 1_i32, _3) -> bb2; // scope 1 at $DIR/bad_op_mod_by_zero.rs:+2:14: +2:19 ++ _5 = const false; // scope 1 at $DIR/bad_op_mod_by_zero.rs:+2:14: +2:19 ++ _6 = const false; // scope 1 at $DIR/bad_op_mod_by_zero.rs:+2:14: +2:19 ++ _7 = const false; // scope 1 at $DIR/bad_op_mod_by_zero.rs:+2:14: +2:19 ++ assert(!const false, "attempt to compute the remainder of `{} % {}`, which would overflow", const 1_i32, const 0_i32) -> bb2; // scope 1 at $DIR/bad_op_mod_by_zero.rs:+2:14: +2:19 + } + + bb2: { +- _2 = Rem(const 1_i32, move _3); // scope 1 at $DIR/bad_op_mod_by_zero.rs:+2:14: +2:19 ++ _2 = Rem(const 1_i32, const 0_i32); // scope 1 at $DIR/bad_op_mod_by_zero.rs:+2:14: +2:19 + StorageDead(_3); // scope 1 at $DIR/bad_op_mod_by_zero.rs:+2:18: +2:19 + nop; // scope 0 at $DIR/bad_op_mod_by_zero.rs:+0:11: +3:2 + StorageDead(_2); // scope 1 at $DIR/bad_op_mod_by_zero.rs:+3:1: +3:2 + StorageDead(_1); // scope 0 at $DIR/bad_op_mod_by_zero.rs:+3:1: +3:2 + return; // scope 0 at $DIR/bad_op_mod_by_zero.rs:+3:2: +3:2 + } + } + diff --git a/src/test/mir-opt/const_prop/bad_op_mod_by_zero.rs b/src/test/mir-opt/const_prop/bad_op_mod_by_zero.rs new file mode 100644 index 000000000..cc16a4a5a --- /dev/null +++ b/src/test/mir-opt/const_prop/bad_op_mod_by_zero.rs @@ -0,0 +1,6 @@ +// EMIT_MIR bad_op_mod_by_zero.main.ConstProp.diff +#[allow(unconditional_panic)] +fn main() { + let y = 0; + let _z = 1 % y; +} diff --git a/src/test/mir-opt/const_prop/bad_op_unsafe_oob_for_slices.main.ConstProp.32bit.diff b/src/test/mir-opt/const_prop/bad_op_unsafe_oob_for_slices.main.ConstProp.32bit.diff new file mode 100644 index 000000000..553488838 --- /dev/null +++ b/src/test/mir-opt/const_prop/bad_op_unsafe_oob_for_slices.main.ConstProp.32bit.diff @@ -0,0 +1,56 @@ +- // MIR for `main` before ConstProp ++ // MIR for `main` after ConstProp + + fn main() -> () { + let mut _0: (); // return place in scope 0 at $DIR/bad_op_unsafe_oob_for_slices.rs:+0:11: +0:11 + let _1: *const [i32]; // in scope 0 at $DIR/bad_op_unsafe_oob_for_slices.rs:+1:9: +1:10 + let mut _2: *const [i32; 3]; // in scope 0 at $DIR/bad_op_unsafe_oob_for_slices.rs:+1:25: +1:35 + let _3: &[i32; 3]; // in scope 0 at $DIR/bad_op_unsafe_oob_for_slices.rs:+1:25: +1:35 + let _4: [i32; 3]; // in scope 0 at $DIR/bad_op_unsafe_oob_for_slices.rs:+1:26: +1:35 + let _6: usize; // in scope 0 at $DIR/bad_op_unsafe_oob_for_slices.rs:+3:23: +3:24 + let mut _7: usize; // in scope 0 at $DIR/bad_op_unsafe_oob_for_slices.rs:+3:18: +3:25 + let mut _8: bool; // in scope 0 at $DIR/bad_op_unsafe_oob_for_slices.rs:+3:18: +3:25 + let mut _9: &[i32; 3]; // in scope 0 at $DIR/bad_op_unsafe_oob_for_slices.rs:+1:25: +1:35 + scope 1 { + debug a => _1; // in scope 1 at $DIR/bad_op_unsafe_oob_for_slices.rs:+1:9: +1:10 + scope 2 { + let _5: i32; // in scope 2 at $DIR/bad_op_unsafe_oob_for_slices.rs:+3:13: +3:15 + scope 3 { + debug _b => _5; // in scope 3 at $DIR/bad_op_unsafe_oob_for_slices.rs:+3:13: +3:15 + } + } + } + + bb0: { + StorageLive(_1); // scope 0 at $DIR/bad_op_unsafe_oob_for_slices.rs:+1:9: +1:10 + StorageLive(_2); // scope 0 at $DIR/bad_op_unsafe_oob_for_slices.rs:+1:25: +1:35 + StorageLive(_3); // scope 0 at $DIR/bad_op_unsafe_oob_for_slices.rs:+1:25: +1:35 + _9 = const main::promoted[0]; // scope 0 at $DIR/bad_op_unsafe_oob_for_slices.rs:+1:25: +1:35 + // mir::Constant + // + span: $DIR/bad_op_unsafe_oob_for_slices.rs:5:25: 5:35 + // + literal: Const { ty: &[i32; 3], val: Unevaluated(main, [], Some(promoted[0])) } + _3 = _9; // scope 0 at $DIR/bad_op_unsafe_oob_for_slices.rs:+1:25: +1:35 + _2 = &raw const (*_3); // scope 0 at $DIR/bad_op_unsafe_oob_for_slices.rs:+1:25: +1:35 + _1 = move _2 as *const [i32] (Pointer(Unsize)); // scope 0 at $DIR/bad_op_unsafe_oob_for_slices.rs:+1:25: +1:35 + StorageDead(_2); // scope 0 at $DIR/bad_op_unsafe_oob_for_slices.rs:+1:34: +1:35 + StorageDead(_3); // scope 0 at $DIR/bad_op_unsafe_oob_for_slices.rs:+1:35: +1:36 + StorageLive(_5); // scope 2 at $DIR/bad_op_unsafe_oob_for_slices.rs:+3:13: +3:15 + StorageLive(_6); // scope 2 at $DIR/bad_op_unsafe_oob_for_slices.rs:+3:23: +3:24 + _6 = const 3_usize; // scope 2 at $DIR/bad_op_unsafe_oob_for_slices.rs:+3:23: +3:24 + _7 = Len((*_1)); // scope 2 at $DIR/bad_op_unsafe_oob_for_slices.rs:+3:18: +3:25 +- _8 = Lt(_6, _7); // scope 2 at $DIR/bad_op_unsafe_oob_for_slices.rs:+3:18: +3:25 +- assert(move _8, "index out of bounds: the length is {} but the index is {}", move _7, _6) -> bb1; // scope 2 at $DIR/bad_op_unsafe_oob_for_slices.rs:+3:18: +3:25 ++ _8 = Lt(const 3_usize, _7); // scope 2 at $DIR/bad_op_unsafe_oob_for_slices.rs:+3:18: +3:25 ++ assert(move _8, "index out of bounds: the length is {} but the index is {}", move _7, const 3_usize) -> bb1; // scope 2 at $DIR/bad_op_unsafe_oob_for_slices.rs:+3:18: +3:25 + } + + bb1: { + _5 = (*_1)[_6]; // scope 2 at $DIR/bad_op_unsafe_oob_for_slices.rs:+3:18: +3:25 + StorageDead(_6); // scope 2 at $DIR/bad_op_unsafe_oob_for_slices.rs:+3:25: +3:26 + nop; // scope 2 at $DIR/bad_op_unsafe_oob_for_slices.rs:+2:5: +4:6 + StorageDead(_5); // scope 2 at $DIR/bad_op_unsafe_oob_for_slices.rs:+4:5: +4:6 + StorageDead(_1); // scope 0 at $DIR/bad_op_unsafe_oob_for_slices.rs:+5:1: +5:2 + return; // scope 0 at $DIR/bad_op_unsafe_oob_for_slices.rs:+5:2: +5:2 + } + } + diff --git a/src/test/mir-opt/const_prop/bad_op_unsafe_oob_for_slices.main.ConstProp.64bit.diff b/src/test/mir-opt/const_prop/bad_op_unsafe_oob_for_slices.main.ConstProp.64bit.diff new file mode 100644 index 000000000..553488838 --- /dev/null +++ b/src/test/mir-opt/const_prop/bad_op_unsafe_oob_for_slices.main.ConstProp.64bit.diff @@ -0,0 +1,56 @@ +- // MIR for `main` before ConstProp ++ // MIR for `main` after ConstProp + + fn main() -> () { + let mut _0: (); // return place in scope 0 at $DIR/bad_op_unsafe_oob_for_slices.rs:+0:11: +0:11 + let _1: *const [i32]; // in scope 0 at $DIR/bad_op_unsafe_oob_for_slices.rs:+1:9: +1:10 + let mut _2: *const [i32; 3]; // in scope 0 at $DIR/bad_op_unsafe_oob_for_slices.rs:+1:25: +1:35 + let _3: &[i32; 3]; // in scope 0 at $DIR/bad_op_unsafe_oob_for_slices.rs:+1:25: +1:35 + let _4: [i32; 3]; // in scope 0 at $DIR/bad_op_unsafe_oob_for_slices.rs:+1:26: +1:35 + let _6: usize; // in scope 0 at $DIR/bad_op_unsafe_oob_for_slices.rs:+3:23: +3:24 + let mut _7: usize; // in scope 0 at $DIR/bad_op_unsafe_oob_for_slices.rs:+3:18: +3:25 + let mut _8: bool; // in scope 0 at $DIR/bad_op_unsafe_oob_for_slices.rs:+3:18: +3:25 + let mut _9: &[i32; 3]; // in scope 0 at $DIR/bad_op_unsafe_oob_for_slices.rs:+1:25: +1:35 + scope 1 { + debug a => _1; // in scope 1 at $DIR/bad_op_unsafe_oob_for_slices.rs:+1:9: +1:10 + scope 2 { + let _5: i32; // in scope 2 at $DIR/bad_op_unsafe_oob_for_slices.rs:+3:13: +3:15 + scope 3 { + debug _b => _5; // in scope 3 at $DIR/bad_op_unsafe_oob_for_slices.rs:+3:13: +3:15 + } + } + } + + bb0: { + StorageLive(_1); // scope 0 at $DIR/bad_op_unsafe_oob_for_slices.rs:+1:9: +1:10 + StorageLive(_2); // scope 0 at $DIR/bad_op_unsafe_oob_for_slices.rs:+1:25: +1:35 + StorageLive(_3); // scope 0 at $DIR/bad_op_unsafe_oob_for_slices.rs:+1:25: +1:35 + _9 = const main::promoted[0]; // scope 0 at $DIR/bad_op_unsafe_oob_for_slices.rs:+1:25: +1:35 + // mir::Constant + // + span: $DIR/bad_op_unsafe_oob_for_slices.rs:5:25: 5:35 + // + literal: Const { ty: &[i32; 3], val: Unevaluated(main, [], Some(promoted[0])) } + _3 = _9; // scope 0 at $DIR/bad_op_unsafe_oob_for_slices.rs:+1:25: +1:35 + _2 = &raw const (*_3); // scope 0 at $DIR/bad_op_unsafe_oob_for_slices.rs:+1:25: +1:35 + _1 = move _2 as *const [i32] (Pointer(Unsize)); // scope 0 at $DIR/bad_op_unsafe_oob_for_slices.rs:+1:25: +1:35 + StorageDead(_2); // scope 0 at $DIR/bad_op_unsafe_oob_for_slices.rs:+1:34: +1:35 + StorageDead(_3); // scope 0 at $DIR/bad_op_unsafe_oob_for_slices.rs:+1:35: +1:36 + StorageLive(_5); // scope 2 at $DIR/bad_op_unsafe_oob_for_slices.rs:+3:13: +3:15 + StorageLive(_6); // scope 2 at $DIR/bad_op_unsafe_oob_for_slices.rs:+3:23: +3:24 + _6 = const 3_usize; // scope 2 at $DIR/bad_op_unsafe_oob_for_slices.rs:+3:23: +3:24 + _7 = Len((*_1)); // scope 2 at $DIR/bad_op_unsafe_oob_for_slices.rs:+3:18: +3:25 +- _8 = Lt(_6, _7); // scope 2 at $DIR/bad_op_unsafe_oob_for_slices.rs:+3:18: +3:25 +- assert(move _8, "index out of bounds: the length is {} but the index is {}", move _7, _6) -> bb1; // scope 2 at $DIR/bad_op_unsafe_oob_for_slices.rs:+3:18: +3:25 ++ _8 = Lt(const 3_usize, _7); // scope 2 at $DIR/bad_op_unsafe_oob_for_slices.rs:+3:18: +3:25 ++ assert(move _8, "index out of bounds: the length is {} but the index is {}", move _7, const 3_usize) -> bb1; // scope 2 at $DIR/bad_op_unsafe_oob_for_slices.rs:+3:18: +3:25 + } + + bb1: { + _5 = (*_1)[_6]; // scope 2 at $DIR/bad_op_unsafe_oob_for_slices.rs:+3:18: +3:25 + StorageDead(_6); // scope 2 at $DIR/bad_op_unsafe_oob_for_slices.rs:+3:25: +3:26 + nop; // scope 2 at $DIR/bad_op_unsafe_oob_for_slices.rs:+2:5: +4:6 + StorageDead(_5); // scope 2 at $DIR/bad_op_unsafe_oob_for_slices.rs:+4:5: +4:6 + StorageDead(_1); // scope 0 at $DIR/bad_op_unsafe_oob_for_slices.rs:+5:1: +5:2 + return; // scope 0 at $DIR/bad_op_unsafe_oob_for_slices.rs:+5:2: +5:2 + } + } + diff --git a/src/test/mir-opt/const_prop/bad_op_unsafe_oob_for_slices.rs b/src/test/mir-opt/const_prop/bad_op_unsafe_oob_for_slices.rs new file mode 100644 index 000000000..cf22b06d5 --- /dev/null +++ b/src/test/mir-opt/const_prop/bad_op_unsafe_oob_for_slices.rs @@ -0,0 +1,9 @@ +// EMIT_MIR_FOR_EACH_BIT_WIDTH +// EMIT_MIR bad_op_unsafe_oob_for_slices.main.ConstProp.diff +#[allow(unconditional_panic)] +fn main() { + let a: *const [_] = &[1, 2, 3]; + unsafe { + let _b = (*a)[3]; + } +} diff --git a/src/test/mir-opt/const_prop/boolean_identities.rs b/src/test/mir-opt/const_prop/boolean_identities.rs new file mode 100644 index 000000000..57164e3e7 --- /dev/null +++ b/src/test/mir-opt/const_prop/boolean_identities.rs @@ -0,0 +1,10 @@ +// compile-flags: -O -Zmir-opt-level=4 + +// EMIT_MIR boolean_identities.test.ConstProp.diff +pub fn test(x: bool, y: bool) -> bool { + (y | true) & (x & false) +} + +fn main() { + test(true, false); +} diff --git a/src/test/mir-opt/const_prop/boolean_identities.test.ConstProp.diff b/src/test/mir-opt/const_prop/boolean_identities.test.ConstProp.diff new file mode 100644 index 000000000..0de800917 --- /dev/null +++ b/src/test/mir-opt/const_prop/boolean_identities.test.ConstProp.diff @@ -0,0 +1,33 @@ +- // MIR for `test` before ConstProp ++ // MIR for `test` after ConstProp + + fn test(_1: bool, _2: bool) -> bool { + debug x => _1; // in scope 0 at $DIR/boolean_identities.rs:+0:13: +0:14 + debug y => _2; // in scope 0 at $DIR/boolean_identities.rs:+0:22: +0:23 + let mut _0: bool; // return place in scope 0 at $DIR/boolean_identities.rs:+0:34: +0:38 + let mut _3: bool; // in scope 0 at $DIR/boolean_identities.rs:+1:5: +1:15 + let mut _4: bool; // in scope 0 at $DIR/boolean_identities.rs:+1:6: +1:7 + let mut _5: bool; // in scope 0 at $DIR/boolean_identities.rs:+1:18: +1:29 + let mut _6: bool; // in scope 0 at $DIR/boolean_identities.rs:+1:19: +1:20 + + bb0: { + StorageLive(_3); // scope 0 at $DIR/boolean_identities.rs:+1:5: +1:15 + StorageLive(_4); // scope 0 at $DIR/boolean_identities.rs:+1:6: +1:7 + _4 = _2; // scope 0 at $DIR/boolean_identities.rs:+1:6: +1:7 +- _3 = BitOr(move _4, const true); // scope 0 at $DIR/boolean_identities.rs:+1:5: +1:15 ++ _3 = const true; // scope 0 at $DIR/boolean_identities.rs:+1:5: +1:15 + StorageDead(_4); // scope 0 at $DIR/boolean_identities.rs:+1:14: +1:15 + StorageLive(_5); // scope 0 at $DIR/boolean_identities.rs:+1:18: +1:29 + StorageLive(_6); // scope 0 at $DIR/boolean_identities.rs:+1:19: +1:20 + _6 = _1; // scope 0 at $DIR/boolean_identities.rs:+1:19: +1:20 +- _5 = BitAnd(move _6, const false); // scope 0 at $DIR/boolean_identities.rs:+1:18: +1:29 ++ _5 = const false; // scope 0 at $DIR/boolean_identities.rs:+1:18: +1:29 + StorageDead(_6); // scope 0 at $DIR/boolean_identities.rs:+1:28: +1:29 +- _0 = BitAnd(move _3, move _5); // scope 0 at $DIR/boolean_identities.rs:+1:5: +1:29 ++ _0 = const false; // scope 0 at $DIR/boolean_identities.rs:+1:5: +1:29 + StorageDead(_5); // scope 0 at $DIR/boolean_identities.rs:+1:28: +1:29 + StorageDead(_3); // scope 0 at $DIR/boolean_identities.rs:+1:28: +1:29 + return; // scope 0 at $DIR/boolean_identities.rs:+2:2: +2:2 + } + } + diff --git a/src/test/mir-opt/const_prop/boxes.main.ConstProp.diff b/src/test/mir-opt/const_prop/boxes.main.ConstProp.diff new file mode 100644 index 000000000..f2d4bee1b --- /dev/null +++ b/src/test/mir-opt/const_prop/boxes.main.ConstProp.diff @@ -0,0 +1,67 @@ +- // MIR for `main` before ConstProp ++ // MIR for `main` after ConstProp + + fn main() -> () { + let mut _0: (); // return place in scope 0 at $DIR/boxes.rs:+0:11: +0:11 + let _1: i32; // in scope 0 at $DIR/boxes.rs:+1:9: +1:10 + let mut _2: i32; // in scope 0 at $DIR/boxes.rs:+1:13: +1:22 + let mut _3: std::boxed::Box<i32>; // in scope 0 at $DIR/boxes.rs:+1:14: +1:22 + let mut _4: usize; // in scope 0 at $DIR/boxes.rs:+1:14: +1:22 + let mut _5: usize; // in scope 0 at $DIR/boxes.rs:+1:14: +1:22 + let mut _6: *mut u8; // in scope 0 at $DIR/boxes.rs:+1:14: +1:22 + let mut _7: std::boxed::Box<i32>; // in scope 0 at $DIR/boxes.rs:+1:14: +1:22 + let mut _8: *const i32; // in scope 0 at $DIR/boxes.rs:+1:14: +1:22 + let mut _9: *const i32; // in scope 0 at $DIR/boxes.rs:+1:14: +1:22 + let mut _10: *const i32; // in scope 0 at $DIR/boxes.rs:+1:14: +1:22 + let mut _11: *const i32; // in scope 0 at $DIR/boxes.rs:+1:14: +1:22 + scope 1 { + debug x => _1; // in scope 1 at $DIR/boxes.rs:+1:9: +1:10 + } + scope 2 { + } + + bb0: { + StorageLive(_1); // scope 0 at $DIR/boxes.rs:+1:9: +1:10 + StorageLive(_2); // scope 0 at $DIR/boxes.rs:+1:13: +1:22 + StorageLive(_3); // scope 0 at $DIR/boxes.rs:+1:14: +1:22 +- _4 = SizeOf(i32); // scope 2 at $DIR/boxes.rs:+1:14: +1:22 +- _5 = AlignOf(i32); // scope 2 at $DIR/boxes.rs:+1:14: +1:22 +- _6 = alloc::alloc::exchange_malloc(move _4, move _5) -> bb1; // scope 2 at $DIR/boxes.rs:+1:14: +1:22 ++ _4 = const 4_usize; // scope 2 at $DIR/boxes.rs:+1:14: +1:22 ++ _5 = const 4_usize; // scope 2 at $DIR/boxes.rs:+1:14: +1:22 ++ _6 = alloc::alloc::exchange_malloc(const 4_usize, const 4_usize) -> bb1; // scope 2 at $DIR/boxes.rs:+1:14: +1:22 + // mir::Constant + // + span: $DIR/boxes.rs:12:14: 12:22 + // + literal: Const { ty: unsafe fn(usize, usize) -> *mut u8 {alloc::alloc::exchange_malloc}, val: Value(<ZST>) } + } + + bb1: { + StorageLive(_7); // scope 0 at $DIR/boxes.rs:+1:14: +1:22 + _7 = ShallowInitBox(move _6, i32); // scope 0 at $DIR/boxes.rs:+1:14: +1:22 + StorageLive(_8); // scope 0 at $DIR/boxes.rs:+1:19: +1:21 + _8 = (((_7.0: std::ptr::Unique<i32>).0: std::ptr::NonNull<i32>).0: *const i32); // scope 0 at $DIR/boxes.rs:+1:19: +1:21 + (*_8) = const 42_i32; // scope 0 at $DIR/boxes.rs:+1:19: +1:21 + StorageDead(_8); // scope 0 at $DIR/boxes.rs:+1:14: +1:22 + _3 = move _7; // scope 0 at $DIR/boxes.rs:+1:14: +1:22 + StorageDead(_7); // scope 0 at $DIR/boxes.rs:+1:21: +1:22 + StorageLive(_9); // scope 0 at $DIR/boxes.rs:+1:13: +1:22 + _9 = (((_3.0: std::ptr::Unique<i32>).0: std::ptr::NonNull<i32>).0: *const i32); // scope 0 at $DIR/boxes.rs:+1:13: +1:22 + _2 = (*_9); // scope 0 at $DIR/boxes.rs:+1:13: +1:22 + StorageDead(_9); // scope 0 at $DIR/boxes.rs:+1:13: +1:26 + _1 = Add(move _2, const 0_i32); // scope 0 at $DIR/boxes.rs:+1:13: +1:26 + StorageDead(_2); // scope 0 at $DIR/boxes.rs:+1:25: +1:26 + drop(_3) -> [return: bb2, unwind: bb3]; // scope 0 at $DIR/boxes.rs:+1:26: +1:27 + } + + bb2: { + StorageDead(_3); // scope 0 at $DIR/boxes.rs:+1:26: +1:27 + nop; // scope 0 at $DIR/boxes.rs:+0:11: +2:2 + StorageDead(_1); // scope 0 at $DIR/boxes.rs:+2:1: +2:2 + return; // scope 0 at $DIR/boxes.rs:+2:2: +2:2 + } + + bb3 (cleanup): { + resume; // scope 0 at $DIR/boxes.rs:+0:1: +2:2 + } + } + diff --git a/src/test/mir-opt/const_prop/boxes.rs b/src/test/mir-opt/const_prop/boxes.rs new file mode 100644 index 000000000..fea666a44 --- /dev/null +++ b/src/test/mir-opt/const_prop/boxes.rs @@ -0,0 +1,13 @@ +// compile-flags: -O +// ignore-emscripten compiled with panic=abort by default +// ignore-wasm32 +// ignore-wasm64 + +#![feature(box_syntax)] + +// Note: this test verifies that we, in fact, do not const prop `box` + +// EMIT_MIR boxes.main.ConstProp.diff +fn main() { + let x = *(box 42) + 0; +} diff --git a/src/test/mir-opt/const_prop/cast.main.ConstProp.diff b/src/test/mir-opt/const_prop/cast.main.ConstProp.diff new file mode 100644 index 000000000..5698a612f --- /dev/null +++ b/src/test/mir-opt/const_prop/cast.main.ConstProp.diff @@ -0,0 +1,28 @@ +- // MIR for `main` before ConstProp ++ // MIR for `main` after ConstProp + + fn main() -> () { + let mut _0: (); // return place in scope 0 at $DIR/cast.rs:+0:11: +0:11 + let _1: u32; // in scope 0 at $DIR/cast.rs:+1:9: +1:10 + scope 1 { + debug x => _1; // in scope 1 at $DIR/cast.rs:+1:9: +1:10 + let _2: u8; // in scope 1 at $DIR/cast.rs:+3:9: +3:10 + scope 2 { + debug y => _2; // in scope 2 at $DIR/cast.rs:+3:9: +3:10 + } + } + + bb0: { + StorageLive(_1); // scope 0 at $DIR/cast.rs:+1:9: +1:10 +- _1 = const 42_u8 as u32 (Misc); // scope 0 at $DIR/cast.rs:+1:13: +1:24 ++ _1 = const 42_u32; // scope 0 at $DIR/cast.rs:+1:13: +1:24 + StorageLive(_2); // scope 1 at $DIR/cast.rs:+3:9: +3:10 +- _2 = const 42_u32 as u8 (Misc); // scope 1 at $DIR/cast.rs:+3:13: +3:24 ++ _2 = const 42_u8; // scope 1 at $DIR/cast.rs:+3:13: +3:24 + nop; // scope 0 at $DIR/cast.rs:+0:11: +4:2 + StorageDead(_2); // scope 1 at $DIR/cast.rs:+4:1: +4:2 + StorageDead(_1); // scope 0 at $DIR/cast.rs:+4:1: +4:2 + return; // scope 0 at $DIR/cast.rs:+4:2: +4:2 + } + } + diff --git a/src/test/mir-opt/const_prop/cast.rs b/src/test/mir-opt/const_prop/cast.rs new file mode 100644 index 000000000..680cab007 --- /dev/null +++ b/src/test/mir-opt/const_prop/cast.rs @@ -0,0 +1,7 @@ +// EMIT_MIR cast.main.ConstProp.diff + +fn main() { + let x = 42u8 as u32; + + let y = 42u32 as u8; +} diff --git a/src/test/mir-opt/const_prop/checked_add.main.ConstProp.diff b/src/test/mir-opt/const_prop/checked_add.main.ConstProp.diff new file mode 100644 index 000000000..5e33d0542 --- /dev/null +++ b/src/test/mir-opt/const_prop/checked_add.main.ConstProp.diff @@ -0,0 +1,28 @@ +- // MIR for `main` before ConstProp ++ // MIR for `main` after ConstProp + + fn main() -> () { + let mut _0: (); // return place in scope 0 at $DIR/checked_add.rs:+0:11: +0:11 + let _1: u32; // in scope 0 at $DIR/checked_add.rs:+1:9: +1:10 + let mut _2: (u32, bool); // in scope 0 at $DIR/checked_add.rs:+1:18: +1:23 + scope 1 { + debug x => _1; // in scope 1 at $DIR/checked_add.rs:+1:9: +1:10 + } + + bb0: { + StorageLive(_1); // scope 0 at $DIR/checked_add.rs:+1:9: +1:10 +- _2 = CheckedAdd(const 1_u32, const 1_u32); // scope 0 at $DIR/checked_add.rs:+1:18: +1:23 +- assert(!move (_2.1: bool), "attempt to compute `{} + {}`, which would overflow", const 1_u32, const 1_u32) -> bb1; // scope 0 at $DIR/checked_add.rs:+1:18: +1:23 ++ _2 = const (2_u32, false); // scope 0 at $DIR/checked_add.rs:+1:18: +1:23 ++ assert(!const false, "attempt to compute `{} + {}`, which would overflow", const 1_u32, const 1_u32) -> bb1; // scope 0 at $DIR/checked_add.rs:+1:18: +1:23 + } + + bb1: { +- _1 = move (_2.0: u32); // scope 0 at $DIR/checked_add.rs:+1:18: +1:23 ++ _1 = const 2_u32; // scope 0 at $DIR/checked_add.rs:+1:18: +1:23 + nop; // scope 0 at $DIR/checked_add.rs:+0:11: +2:2 + StorageDead(_1); // scope 0 at $DIR/checked_add.rs:+2:1: +2:2 + return; // scope 0 at $DIR/checked_add.rs:+2:2: +2:2 + } + } + diff --git a/src/test/mir-opt/const_prop/checked_add.rs b/src/test/mir-opt/const_prop/checked_add.rs new file mode 100644 index 000000000..08d59b6fb --- /dev/null +++ b/src/test/mir-opt/const_prop/checked_add.rs @@ -0,0 +1,6 @@ +// compile-flags: -C overflow-checks=on + +// EMIT_MIR checked_add.main.ConstProp.diff +fn main() { + let x: u32 = 1 + 1; +} diff --git a/src/test/mir-opt/const_prop/const_prop_fails_gracefully.main.ConstProp.diff b/src/test/mir-opt/const_prop/const_prop_fails_gracefully.main.ConstProp.diff new file mode 100644 index 000000000..c21b24591 --- /dev/null +++ b/src/test/mir-opt/const_prop/const_prop_fails_gracefully.main.ConstProp.diff @@ -0,0 +1,44 @@ +- // MIR for `main` before ConstProp ++ // MIR for `main` after ConstProp + + fn main() -> () { + let mut _0: (); // return place in scope 0 at $DIR/const_prop_fails_gracefully.rs:+0:11: +0:11 + let _1: usize; // in scope 0 at $DIR/const_prop_fails_gracefully.rs:+2:9: +2:10 + let mut _2: *const i32; // in scope 0 at $DIR/const_prop_fails_gracefully.rs:+2:13: +2:30 + let _3: &i32; // in scope 0 at $DIR/const_prop_fails_gracefully.rs:+2:13: +2:16 + let _4: (); // in scope 0 at $DIR/const_prop_fails_gracefully.rs:+3:5: +3:12 + let mut _5: usize; // in scope 0 at $DIR/const_prop_fails_gracefully.rs:+3:10: +3:11 + scope 1 { + debug x => _1; // in scope 1 at $DIR/const_prop_fails_gracefully.rs:+2:9: +2:10 + } + + bb0: { + StorageLive(_1); // scope 0 at $DIR/const_prop_fails_gracefully.rs:+2:9: +2:10 + StorageLive(_2); // scope 0 at $DIR/const_prop_fails_gracefully.rs:+2:13: +2:30 + StorageLive(_3); // scope 0 at $DIR/const_prop_fails_gracefully.rs:+2:13: +2:16 + _3 = const FOO; // scope 0 at $DIR/const_prop_fails_gracefully.rs:+2:13: +2:16 + // mir::Constant + // + span: $DIR/const_prop_fails_gracefully.rs:7:13: 7:16 + // + literal: Const { ty: &i32, val: Unevaluated(FOO, [], None) } + _2 = &raw const (*_3); // scope 0 at $DIR/const_prop_fails_gracefully.rs:+2:13: +2:16 + _1 = move _2 as usize (PointerExposeAddress); // scope 0 at $DIR/const_prop_fails_gracefully.rs:+2:13: +2:39 + StorageDead(_2); // scope 0 at $DIR/const_prop_fails_gracefully.rs:+2:38: +2:39 + StorageDead(_3); // scope 0 at $DIR/const_prop_fails_gracefully.rs:+2:39: +2:40 + StorageLive(_4); // scope 1 at $DIR/const_prop_fails_gracefully.rs:+3:5: +3:12 + StorageLive(_5); // scope 1 at $DIR/const_prop_fails_gracefully.rs:+3:10: +3:11 + _5 = _1; // scope 1 at $DIR/const_prop_fails_gracefully.rs:+3:10: +3:11 + _4 = read(move _5) -> bb1; // scope 1 at $DIR/const_prop_fails_gracefully.rs:+3:5: +3:12 + // mir::Constant + // + span: $DIR/const_prop_fails_gracefully.rs:8:5: 8:9 + // + literal: Const { ty: fn(usize) {read}, val: Value(<ZST>) } + } + + bb1: { + StorageDead(_5); // scope 1 at $DIR/const_prop_fails_gracefully.rs:+3:11: +3:12 + StorageDead(_4); // scope 1 at $DIR/const_prop_fails_gracefully.rs:+3:12: +3:13 + nop; // scope 0 at $DIR/const_prop_fails_gracefully.rs:+0:11: +4:2 + StorageDead(_1); // scope 0 at $DIR/const_prop_fails_gracefully.rs:+4:1: +4:2 + return; // scope 0 at $DIR/const_prop_fails_gracefully.rs:+4:2: +4:2 + } + } + diff --git a/src/test/mir-opt/const_prop/const_prop_fails_gracefully.rs b/src/test/mir-opt/const_prop/const_prop_fails_gracefully.rs new file mode 100644 index 000000000..8bd68527f --- /dev/null +++ b/src/test/mir-opt/const_prop/const_prop_fails_gracefully.rs @@ -0,0 +1,9 @@ +#[inline(never)] +fn read(_: usize) { } + +// EMIT_MIR const_prop_fails_gracefully.main.ConstProp.diff +fn main() { + const FOO: &i32 = &1; + let x = FOO as *const i32 as usize; + read(x); +} diff --git a/src/test/mir-opt/const_prop/control-flow-simplification.rs b/src/test/mir-opt/const_prop/control-flow-simplification.rs new file mode 100644 index 000000000..aa4ce19f6 --- /dev/null +++ b/src/test/mir-opt/const_prop/control-flow-simplification.rs @@ -0,0 +1,20 @@ +// compile-flags: -Zmir-opt-level=1 + +trait NeedsDrop:Sized{ + const NEEDS:bool=std::mem::needs_drop::<Self>(); +} + +impl<This> NeedsDrop for This{} + +// EMIT_MIR control_flow_simplification.hello.ConstProp.diff +// EMIT_MIR control_flow_simplification.hello.PreCodegen.before.mir +fn hello<T>(){ + if <bool>::NEEDS { + panic!() + } +} + +pub fn main() { + hello::<()>(); + hello::<Vec<()>>(); +} diff --git a/src/test/mir-opt/const_prop/control_flow_simplification.hello.ConstProp.diff b/src/test/mir-opt/const_prop/control_flow_simplification.hello.ConstProp.diff new file mode 100644 index 000000000..5f4df0d88 --- /dev/null +++ b/src/test/mir-opt/const_prop/control_flow_simplification.hello.ConstProp.diff @@ -0,0 +1,34 @@ +- // MIR for `hello` before ConstProp ++ // MIR for `hello` after ConstProp + + fn hello() -> () { + let mut _0: (); // return place in scope 0 at $DIR/control-flow-simplification.rs:+0:14: +0:14 + let mut _1: bool; // in scope 0 at $DIR/control-flow-simplification.rs:+1:8: +1:21 + let mut _2: !; // in scope 0 at $SRC_DIR/std/src/panic.rs:LL:COL + + bb0: { + StorageLive(_1); // scope 0 at $DIR/control-flow-simplification.rs:+1:8: +1:21 +- _1 = const <bool as NeedsDrop>::NEEDS; // scope 0 at $DIR/control-flow-simplification.rs:+1:8: +1:21 +- switchInt(move _1) -> [false: bb2, otherwise: bb1]; // scope 0 at $DIR/control-flow-simplification.rs:+1:8: +1:21 ++ _1 = const false; // scope 0 at $DIR/control-flow-simplification.rs:+1:8: +1:21 ++ switchInt(const false) -> [false: bb2, otherwise: bb1]; // scope 0 at $DIR/control-flow-simplification.rs:+1:8: +1:21 + } + + bb1: { + StorageLive(_2); // scope 0 at $SRC_DIR/std/src/panic.rs:LL:COL + _2 = begin_panic::<&str>(const "explicit panic"); // scope 0 at $SRC_DIR/std/src/panic.rs:LL:COL + // mir::Constant + // + span: $SRC_DIR/std/src/panic.rs:LL:COL + // + literal: Const { ty: fn(&str) -> ! {begin_panic::<&str>}, val: Value(<ZST>) } + // mir::Constant + // + span: $SRC_DIR/std/src/panic.rs:LL:COL + // + literal: Const { ty: &str, val: Value(Slice(..)) } + } + + bb2: { + nop; // scope 0 at $DIR/control-flow-simplification.rs:+3:6: +3:6 + StorageDead(_1); // scope 0 at $DIR/control-flow-simplification.rs:+3:5: +3:6 + return; // scope 0 at $DIR/control-flow-simplification.rs:+4:2: +4:2 + } + } + diff --git a/src/test/mir-opt/const_prop/control_flow_simplification.hello.PreCodegen.before.mir b/src/test/mir-opt/const_prop/control_flow_simplification.hello.PreCodegen.before.mir new file mode 100644 index 000000000..70f979775 --- /dev/null +++ b/src/test/mir-opt/const_prop/control_flow_simplification.hello.PreCodegen.before.mir @@ -0,0 +1,9 @@ +// MIR for `hello` before PreCodegen + +fn hello() -> () { + let mut _0: (); // return place in scope 0 at $DIR/control-flow-simplification.rs:+0:14: +0:14 + + bb0: { + return; // scope 0 at $DIR/control-flow-simplification.rs:+4:2: +4:2 + } +} diff --git a/src/test/mir-opt/const_prop/discriminant.main.ConstProp.32bit.diff b/src/test/mir-opt/const_prop/discriminant.main.ConstProp.32bit.diff new file mode 100644 index 000000000..5b4ecaa80 --- /dev/null +++ b/src/test/mir-opt/const_prop/discriminant.main.ConstProp.32bit.diff @@ -0,0 +1,52 @@ +- // MIR for `main` before ConstProp ++ // MIR for `main` after ConstProp + + fn main() -> () { + let mut _0: (); // return place in scope 0 at $DIR/discriminant.rs:+0:11: +0:11 + let _1: i32; // in scope 0 at $DIR/discriminant.rs:+1:9: +1:10 + let mut _2: i32; // in scope 0 at $DIR/discriminant.rs:+1:13: +1:64 + let mut _3: std::option::Option<bool>; // in scope 0 at $DIR/discriminant.rs:+1:34: +1:44 + let mut _4: isize; // in scope 0 at $DIR/discriminant.rs:+1:21: +1:31 + scope 1 { + debug x => _1; // in scope 1 at $DIR/discriminant.rs:+1:9: +1:10 + } + scope 2 { + } + + bb0: { + StorageLive(_1); // scope 0 at $DIR/discriminant.rs:+1:9: +1:10 + StorageLive(_2); // scope 0 at $DIR/discriminant.rs:+1:13: +1:64 + StorageLive(_3); // scope 2 at $DIR/discriminant.rs:+1:34: +1:44 + Deinit(_3); // scope 2 at $DIR/discriminant.rs:+1:34: +1:44 + ((_3 as Some).0: bool) = const true; // scope 2 at $DIR/discriminant.rs:+1:34: +1:44 + discriminant(_3) = 1; // scope 2 at $DIR/discriminant.rs:+1:34: +1:44 +- _4 = discriminant(_3); // scope 2 at $DIR/discriminant.rs:+1:21: +1:31 +- switchInt(move _4) -> [1_isize: bb1, otherwise: bb3]; // scope 2 at $DIR/discriminant.rs:+1:21: +1:31 ++ _4 = const 1_isize; // scope 2 at $DIR/discriminant.rs:+1:21: +1:31 ++ switchInt(const 1_isize) -> [1_isize: bb1, otherwise: bb3]; // scope 2 at $DIR/discriminant.rs:+1:21: +1:31 + } + + bb1: { + switchInt(((_3 as Some).0: bool)) -> [false: bb3, otherwise: bb2]; // scope 2 at $DIR/discriminant.rs:+1:21: +1:31 + } + + bb2: { + _2 = const 42_i32; // scope 2 at $DIR/discriminant.rs:+1:47: +1:49 + goto -> bb4; // scope 0 at $DIR/discriminant.rs:+1:13: +1:64 + } + + bb3: { + _2 = const 10_i32; // scope 0 at $DIR/discriminant.rs:+1:59: +1:61 + goto -> bb4; // scope 0 at $DIR/discriminant.rs:+1:13: +1:64 + } + + bb4: { + _1 = Add(move _2, const 0_i32); // scope 0 at $DIR/discriminant.rs:+1:13: +1:68 + StorageDead(_2); // scope 0 at $DIR/discriminant.rs:+1:67: +1:68 + StorageDead(_3); // scope 0 at $DIR/discriminant.rs:+1:68: +1:69 + nop; // scope 0 at $DIR/discriminant.rs:+0:11: +2:2 + StorageDead(_1); // scope 0 at $DIR/discriminant.rs:+2:1: +2:2 + return; // scope 0 at $DIR/discriminant.rs:+2:2: +2:2 + } + } + diff --git a/src/test/mir-opt/const_prop/discriminant.main.ConstProp.64bit.diff b/src/test/mir-opt/const_prop/discriminant.main.ConstProp.64bit.diff new file mode 100644 index 000000000..5b4ecaa80 --- /dev/null +++ b/src/test/mir-opt/const_prop/discriminant.main.ConstProp.64bit.diff @@ -0,0 +1,52 @@ +- // MIR for `main` before ConstProp ++ // MIR for `main` after ConstProp + + fn main() -> () { + let mut _0: (); // return place in scope 0 at $DIR/discriminant.rs:+0:11: +0:11 + let _1: i32; // in scope 0 at $DIR/discriminant.rs:+1:9: +1:10 + let mut _2: i32; // in scope 0 at $DIR/discriminant.rs:+1:13: +1:64 + let mut _3: std::option::Option<bool>; // in scope 0 at $DIR/discriminant.rs:+1:34: +1:44 + let mut _4: isize; // in scope 0 at $DIR/discriminant.rs:+1:21: +1:31 + scope 1 { + debug x => _1; // in scope 1 at $DIR/discriminant.rs:+1:9: +1:10 + } + scope 2 { + } + + bb0: { + StorageLive(_1); // scope 0 at $DIR/discriminant.rs:+1:9: +1:10 + StorageLive(_2); // scope 0 at $DIR/discriminant.rs:+1:13: +1:64 + StorageLive(_3); // scope 2 at $DIR/discriminant.rs:+1:34: +1:44 + Deinit(_3); // scope 2 at $DIR/discriminant.rs:+1:34: +1:44 + ((_3 as Some).0: bool) = const true; // scope 2 at $DIR/discriminant.rs:+1:34: +1:44 + discriminant(_3) = 1; // scope 2 at $DIR/discriminant.rs:+1:34: +1:44 +- _4 = discriminant(_3); // scope 2 at $DIR/discriminant.rs:+1:21: +1:31 +- switchInt(move _4) -> [1_isize: bb1, otherwise: bb3]; // scope 2 at $DIR/discriminant.rs:+1:21: +1:31 ++ _4 = const 1_isize; // scope 2 at $DIR/discriminant.rs:+1:21: +1:31 ++ switchInt(const 1_isize) -> [1_isize: bb1, otherwise: bb3]; // scope 2 at $DIR/discriminant.rs:+1:21: +1:31 + } + + bb1: { + switchInt(((_3 as Some).0: bool)) -> [false: bb3, otherwise: bb2]; // scope 2 at $DIR/discriminant.rs:+1:21: +1:31 + } + + bb2: { + _2 = const 42_i32; // scope 2 at $DIR/discriminant.rs:+1:47: +1:49 + goto -> bb4; // scope 0 at $DIR/discriminant.rs:+1:13: +1:64 + } + + bb3: { + _2 = const 10_i32; // scope 0 at $DIR/discriminant.rs:+1:59: +1:61 + goto -> bb4; // scope 0 at $DIR/discriminant.rs:+1:13: +1:64 + } + + bb4: { + _1 = Add(move _2, const 0_i32); // scope 0 at $DIR/discriminant.rs:+1:13: +1:68 + StorageDead(_2); // scope 0 at $DIR/discriminant.rs:+1:67: +1:68 + StorageDead(_3); // scope 0 at $DIR/discriminant.rs:+1:68: +1:69 + nop; // scope 0 at $DIR/discriminant.rs:+0:11: +2:2 + StorageDead(_1); // scope 0 at $DIR/discriminant.rs:+2:1: +2:2 + return; // scope 0 at $DIR/discriminant.rs:+2:2: +2:2 + } + } + diff --git a/src/test/mir-opt/const_prop/discriminant.rs b/src/test/mir-opt/const_prop/discriminant.rs new file mode 100644 index 000000000..67538b3c7 --- /dev/null +++ b/src/test/mir-opt/const_prop/discriminant.rs @@ -0,0 +1,12 @@ +// compile-flags: -O + +// FIXME(wesleywiser): Ideally, we could const-prop away all of this and just be left with +// `let x = 42` but that doesn't work because const-prop doesn't support `Operand::Indirect` +// and `InterpCx::eval_place()` always forces an allocation which creates the `Indirect`. +// Fixing either of those will allow us to const-prop this away. + +// EMIT_MIR_FOR_EACH_BIT_WIDTH +// EMIT_MIR discriminant.main.ConstProp.diff +fn main() { + let x = (if let Some(true) = Some(true) { 42 } else { 10 }) + 0; +} diff --git a/src/test/mir-opt/const_prop/indirect.main.ConstProp.diff b/src/test/mir-opt/const_prop/indirect.main.ConstProp.diff new file mode 100644 index 000000000..2e1e32545 --- /dev/null +++ b/src/test/mir-opt/const_prop/indirect.main.ConstProp.diff @@ -0,0 +1,33 @@ +- // MIR for `main` before ConstProp ++ // MIR for `main` after ConstProp + + fn main() -> () { + let mut _0: (); // return place in scope 0 at $DIR/indirect.rs:+0:11: +0:11 + let _1: u8; // in scope 0 at $DIR/indirect.rs:+1:9: +1:10 + let mut _2: u8; // in scope 0 at $DIR/indirect.rs:+1:13: +1:25 + let mut _3: (u8, bool); // in scope 0 at $DIR/indirect.rs:+1:13: +1:29 + scope 1 { + debug x => _1; // in scope 1 at $DIR/indirect.rs:+1:9: +1:10 + } + + bb0: { + StorageLive(_1); // scope 0 at $DIR/indirect.rs:+1:9: +1:10 + StorageLive(_2); // scope 0 at $DIR/indirect.rs:+1:13: +1:25 +- _2 = const 2_u32 as u8 (Misc); // scope 0 at $DIR/indirect.rs:+1:13: +1:25 +- _3 = CheckedAdd(_2, const 1_u8); // scope 0 at $DIR/indirect.rs:+1:13: +1:29 +- assert(!move (_3.1: bool), "attempt to compute `{} + {}`, which would overflow", move _2, const 1_u8) -> bb1; // scope 0 at $DIR/indirect.rs:+1:13: +1:29 ++ _2 = const 2_u8; // scope 0 at $DIR/indirect.rs:+1:13: +1:25 ++ _3 = const (3_u8, false); // scope 0 at $DIR/indirect.rs:+1:13: +1:29 ++ assert(!const false, "attempt to compute `{} + {}`, which would overflow", const 2_u8, const 1_u8) -> bb1; // scope 0 at $DIR/indirect.rs:+1:13: +1:29 + } + + bb1: { +- _1 = move (_3.0: u8); // scope 0 at $DIR/indirect.rs:+1:13: +1:29 ++ _1 = const 3_u8; // scope 0 at $DIR/indirect.rs:+1:13: +1:29 + StorageDead(_2); // scope 0 at $DIR/indirect.rs:+1:28: +1:29 + nop; // scope 0 at $DIR/indirect.rs:+0:11: +2:2 + StorageDead(_1); // scope 0 at $DIR/indirect.rs:+2:1: +2:2 + return; // scope 0 at $DIR/indirect.rs:+2:2: +2:2 + } + } + diff --git a/src/test/mir-opt/const_prop/indirect.rs b/src/test/mir-opt/const_prop/indirect.rs new file mode 100644 index 000000000..37217ca81 --- /dev/null +++ b/src/test/mir-opt/const_prop/indirect.rs @@ -0,0 +1,6 @@ +// compile-flags: -C overflow-checks=on + +// EMIT_MIR indirect.main.ConstProp.diff +fn main() { + let x = (2u32 as u8) + 1; +} diff --git a/src/test/mir-opt/const_prop/invalid_constant.main.ConstProp.diff b/src/test/mir-opt/const_prop/invalid_constant.main.ConstProp.diff new file mode 100644 index 000000000..67a4dc3c0 --- /dev/null +++ b/src/test/mir-opt/const_prop/invalid_constant.main.ConstProp.diff @@ -0,0 +1,77 @@ +- // MIR for `main` before ConstProp ++ // MIR for `main` after ConstProp + + fn main() -> () { + let mut _0: (); // return place in scope 0 at $DIR/invalid_constant.rs:+0:11: +0:11 + let _1: char; // in scope 0 at $DIR/invalid_constant.rs:+6:9: +6:22 + let mut _2: main::InvalidChar; // in scope 0 at $DIR/invalid_constant.rs:+6:34: +6:63 + let mut _4: E; // in scope 0 at $DIR/invalid_constant.rs:+13:25: +13:59 + let mut _5: main::InvalidTag; // in scope 0 at $DIR/invalid_constant.rs:+13:34: +13:55 + let mut _7: Empty; // in scope 0 at $DIR/invalid_constant.rs:+20:35: +20:73 + let mut _8: main::NoVariants; // in scope 0 at $DIR/invalid_constant.rs:+20:44: +20:65 + scope 1 { + debug _invalid_char => _1; // in scope 1 at $DIR/invalid_constant.rs:+6:9: +6:22 + let _3: [E; 1]; // in scope 1 at $DIR/invalid_constant.rs:+13:9: +13:21 + scope 3 { + debug _invalid_tag => _3; // in scope 3 at $DIR/invalid_constant.rs:+13:9: +13:21 + let _6: [Empty; 1]; // in scope 3 at $DIR/invalid_constant.rs:+20:9: +20:31 + scope 5 { + debug _enum_without_variants => _6; // in scope 5 at $DIR/invalid_constant.rs:+20:9: +20:31 + let _9: main::Str<"���">; // in scope 5 at $DIR/invalid_constant.rs:+24:9: +24:22 + scope 7 { + debug _non_utf8_str => _9; // in scope 7 at $DIR/invalid_constant.rs:+24:9: +24:22 + } + } + scope 6 { + } + } + scope 4 { + } + } + scope 2 { + } + + bb0: { + StorageLive(_1); // scope 0 at $DIR/invalid_constant.rs:+6:9: +6:22 + StorageLive(_2); // scope 2 at $DIR/invalid_constant.rs:+6:34: +6:63 + Deinit(_2); // scope 2 at $DIR/invalid_constant.rs:+6:34: +6:63 + (_2.0: u32) = const 1114113_u32; // scope 2 at $DIR/invalid_constant.rs:+6:34: +6:63 +- _1 = (_2.1: char); // scope 2 at $DIR/invalid_constant.rs:+6:34: +6:67 ++ _1 = const {transmute(0x00110001): char}; // scope 2 at $DIR/invalid_constant.rs:+6:34: +6:67 + StorageDead(_2); // scope 0 at $DIR/invalid_constant.rs:+6:69: +6:70 + StorageLive(_3); // scope 1 at $DIR/invalid_constant.rs:+13:9: +13:21 + StorageLive(_4); // scope 1 at $DIR/invalid_constant.rs:+13:25: +13:59 + StorageLive(_5); // scope 4 at $DIR/invalid_constant.rs:+13:34: +13:55 + Deinit(_5); // scope 4 at $DIR/invalid_constant.rs:+13:34: +13:55 + (_5.0: u32) = const 4_u32; // scope 4 at $DIR/invalid_constant.rs:+13:34: +13:55 +- _4 = (_5.1: E); // scope 4 at $DIR/invalid_constant.rs:+13:34: +13:57 +- _3 = [move _4]; // scope 1 at $DIR/invalid_constant.rs:+13:24: +13:60 ++ _4 = const Scalar(0x00000004): E; // scope 4 at $DIR/invalid_constant.rs:+13:34: +13:57 ++ // mir::Constant ++ // + span: $DIR/invalid_constant.rs:28:34: 28:57 ++ // + literal: Const { ty: E, val: Value(Scalar(0x00000004)) } ++ _3 = [const Scalar(0x00000004): E]; // scope 1 at $DIR/invalid_constant.rs:+13:24: +13:60 ++ // mir::Constant ++ // + span: $DIR/invalid_constant.rs:28:24: 28:60 ++ // + literal: Const { ty: E, val: Value(Scalar(0x00000004)) } + StorageDead(_4); // scope 1 at $DIR/invalid_constant.rs:+13:59: +13:60 + StorageDead(_5); // scope 1 at $DIR/invalid_constant.rs:+13:60: +13:61 + StorageLive(_6); // scope 3 at $DIR/invalid_constant.rs:+20:9: +20:31 + StorageLive(_7); // scope 3 at $DIR/invalid_constant.rs:+20:35: +20:73 + StorageLive(_8); // scope 6 at $DIR/invalid_constant.rs:+20:44: +20:65 + Deinit(_8); // scope 6 at $DIR/invalid_constant.rs:+20:44: +20:65 + (_8.0: u32) = const 0_u32; // scope 6 at $DIR/invalid_constant.rs:+20:44: +20:65 + nop; // scope 6 at $DIR/invalid_constant.rs:+20:44: +20:71 + nop; // scope 3 at $DIR/invalid_constant.rs:+20:34: +20:74 + StorageDead(_7); // scope 3 at $DIR/invalid_constant.rs:+20:73: +20:74 + StorageDead(_8); // scope 3 at $DIR/invalid_constant.rs:+20:74: +20:75 + StorageLive(_9); // scope 5 at $DIR/invalid_constant.rs:+24:9: +24:22 + nop; // scope 0 at $DIR/invalid_constant.rs:+0:11: +27:2 + StorageDead(_9); // scope 5 at $DIR/invalid_constant.rs:+27:1: +27:2 + StorageDead(_6); // scope 3 at $DIR/invalid_constant.rs:+27:1: +27:2 + StorageDead(_3); // scope 1 at $DIR/invalid_constant.rs:+27:1: +27:2 + StorageDead(_1); // scope 0 at $DIR/invalid_constant.rs:+27:1: +27:2 + return; // scope 0 at $DIR/invalid_constant.rs:+27:2: +27:2 + } + } + diff --git a/src/test/mir-opt/const_prop/invalid_constant.rs b/src/test/mir-opt/const_prop/invalid_constant.rs new file mode 100644 index 000000000..0337a7ca8 --- /dev/null +++ b/src/test/mir-opt/const_prop/invalid_constant.rs @@ -0,0 +1,42 @@ +// Verify that we can pretty print invalid constants. + +#![feature(adt_const_params)] +#![feature(inline_const)] +#![allow(incomplete_features)] + +#[derive(Copy, Clone)] +#[repr(u32)] +enum E { A, B, C } + +#[derive(Copy, Clone)] +enum Empty {} + +// EMIT_MIR invalid_constant.main.ConstProp.diff +fn main() { + // An invalid char. + union InvalidChar { + int: u32, + chr: char, + } + let _invalid_char = unsafe { InvalidChar { int: 0x110001 }.chr }; + + // An enum with an invalid tag. Regression test for #93688. + union InvalidTag { + int: u32, + e: E, + } + let _invalid_tag = [unsafe { InvalidTag { int: 4 }.e }]; + + // An enum without variants. Regression test for #94073. + union NoVariants { + int: u32, + empty: Empty, + } + let _enum_without_variants = [unsafe { NoVariants { int: 0 }.empty }]; + + // A non-UTF-8 string slice. Regression test for #75763 and #78520. + struct Str<const S: &'static str>; + let _non_utf8_str: Str::<{ + unsafe { std::mem::transmute::<&[u8], &str>(&[0xC0, 0xC1, 0xF5]) } + }>; +} diff --git a/src/test/mir-opt/const_prop/issue-66971.rs b/src/test/mir-opt/const_prop/issue-66971.rs new file mode 100644 index 000000000..81eccae46 --- /dev/null +++ b/src/test/mir-opt/const_prop/issue-66971.rs @@ -0,0 +1,17 @@ +// compile-flags: -Z mir-opt-level=3 + +// Due to a bug in propagating scalar pairs the assertion below used to fail. In the expected +// outputs below, after ConstProp this is how _2 would look like with the bug: +// +// _2 = (const Scalar(0x00) : (), const 0u8); +// +// Which has the wrong type. + +fn encode(this: ((), u8, u8)) { + assert!(this.2 == 0); +} + +// EMIT_MIR issue_66971.main.ConstProp.diff +fn main() { + encode(((), 0, 0)); +} diff --git a/src/test/mir-opt/const_prop/issue-67019.rs b/src/test/mir-opt/const_prop/issue-67019.rs new file mode 100644 index 000000000..c78b8b971 --- /dev/null +++ b/src/test/mir-opt/const_prop/issue-67019.rs @@ -0,0 +1,12 @@ +// compile-flags: -Z mir-opt-level=3 + +// This used to ICE in const-prop + +fn test(this: ((u8, u8),)) { + assert!((this.0).0 == 1); +} + +// EMIT_MIR issue_67019.main.ConstProp.diff +fn main() { + test(((1, 2),)); +} diff --git a/src/test/mir-opt/const_prop/issue_66971.main.ConstProp.diff b/src/test/mir-opt/const_prop/issue_66971.main.ConstProp.diff new file mode 100644 index 000000000..b3d5980aa --- /dev/null +++ b/src/test/mir-opt/const_prop/issue_66971.main.ConstProp.diff @@ -0,0 +1,33 @@ +- // MIR for `main` before ConstProp ++ // MIR for `main` after ConstProp + + fn main() -> () { + let mut _0: (); // return place in scope 0 at $DIR/issue-66971.rs:+0:11: +0:11 + let _1: (); // in scope 0 at $DIR/issue-66971.rs:+1:5: +1:23 + let mut _2: ((), u8, u8); // in scope 0 at $DIR/issue-66971.rs:+1:12: +1:22 + let mut _3: (); // in scope 0 at $DIR/issue-66971.rs:+1:13: +1:15 + + bb0: { + StorageLive(_1); // scope 0 at $DIR/issue-66971.rs:+1:5: +1:23 + StorageLive(_2); // scope 0 at $DIR/issue-66971.rs:+1:12: +1:22 + StorageLive(_3); // scope 0 at $DIR/issue-66971.rs:+1:13: +1:15 + nop; // scope 0 at $DIR/issue-66971.rs:+1:13: +1:15 + Deinit(_2); // scope 0 at $DIR/issue-66971.rs:+1:12: +1:22 + nop; // scope 0 at $DIR/issue-66971.rs:+1:12: +1:22 + (_2.1: u8) = const 0_u8; // scope 0 at $DIR/issue-66971.rs:+1:12: +1:22 + (_2.2: u8) = const 0_u8; // scope 0 at $DIR/issue-66971.rs:+1:12: +1:22 + StorageDead(_3); // scope 0 at $DIR/issue-66971.rs:+1:21: +1:22 + _1 = encode(move _2) -> bb1; // scope 0 at $DIR/issue-66971.rs:+1:5: +1:23 + // mir::Constant + // + span: $DIR/issue-66971.rs:16:5: 16:11 + // + literal: Const { ty: fn(((), u8, u8)) {encode}, val: Value(<ZST>) } + } + + bb1: { + StorageDead(_2); // scope 0 at $DIR/issue-66971.rs:+1:22: +1:23 + StorageDead(_1); // scope 0 at $DIR/issue-66971.rs:+1:23: +1:24 + nop; // scope 0 at $DIR/issue-66971.rs:+0:11: +2:2 + return; // scope 0 at $DIR/issue-66971.rs:+2:2: +2:2 + } + } + diff --git a/src/test/mir-opt/const_prop/issue_67019.main.ConstProp.diff b/src/test/mir-opt/const_prop/issue_67019.main.ConstProp.diff new file mode 100644 index 000000000..8330b5052 --- /dev/null +++ b/src/test/mir-opt/const_prop/issue_67019.main.ConstProp.diff @@ -0,0 +1,34 @@ +- // MIR for `main` before ConstProp ++ // MIR for `main` after ConstProp + + fn main() -> () { + let mut _0: (); // return place in scope 0 at $DIR/issue-67019.rs:+0:11: +0:11 + let _1: (); // in scope 0 at $DIR/issue-67019.rs:+1:5: +1:20 + let mut _2: ((u8, u8),); // in scope 0 at $DIR/issue-67019.rs:+1:10: +1:19 + let mut _3: (u8, u8); // in scope 0 at $DIR/issue-67019.rs:+1:11: +1:17 + + bb0: { + StorageLive(_1); // scope 0 at $DIR/issue-67019.rs:+1:5: +1:20 + StorageLive(_2); // scope 0 at $DIR/issue-67019.rs:+1:10: +1:19 + StorageLive(_3); // scope 0 at $DIR/issue-67019.rs:+1:11: +1:17 + Deinit(_3); // scope 0 at $DIR/issue-67019.rs:+1:11: +1:17 + (_3.0: u8) = const 1_u8; // scope 0 at $DIR/issue-67019.rs:+1:11: +1:17 + (_3.1: u8) = const 2_u8; // scope 0 at $DIR/issue-67019.rs:+1:11: +1:17 + Deinit(_2); // scope 0 at $DIR/issue-67019.rs:+1:10: +1:19 +- (_2.0: (u8, u8)) = move _3; // scope 0 at $DIR/issue-67019.rs:+1:10: +1:19 ++ (_2.0: (u8, u8)) = const (1_u8, 2_u8); // scope 0 at $DIR/issue-67019.rs:+1:10: +1:19 + StorageDead(_3); // scope 0 at $DIR/issue-67019.rs:+1:18: +1:19 + _1 = test(move _2) -> bb1; // scope 0 at $DIR/issue-67019.rs:+1:5: +1:20 + // mir::Constant + // + span: $DIR/issue-67019.rs:11:5: 11:9 + // + literal: Const { ty: fn(((u8, u8),)) {test}, val: Value(<ZST>) } + } + + bb1: { + StorageDead(_2); // scope 0 at $DIR/issue-67019.rs:+1:19: +1:20 + StorageDead(_1); // scope 0 at $DIR/issue-67019.rs:+1:20: +1:21 + nop; // scope 0 at $DIR/issue-67019.rs:+0:11: +2:2 + return; // scope 0 at $DIR/issue-67019.rs:+2:2: +2:2 + } + } + diff --git a/src/test/mir-opt/const_prop/large_array_index.main.ConstProp.32bit.diff b/src/test/mir-opt/const_prop/large_array_index.main.ConstProp.32bit.diff new file mode 100644 index 000000000..96de39258 --- /dev/null +++ b/src/test/mir-opt/const_prop/large_array_index.main.ConstProp.32bit.diff @@ -0,0 +1,37 @@ +- // MIR for `main` before ConstProp ++ // MIR for `main` after ConstProp + + fn main() -> () { + let mut _0: (); // return place in scope 0 at $DIR/large_array_index.rs:+0:11: +0:11 + let _1: u8; // in scope 0 at $DIR/large_array_index.rs:+2:9: +2:10 + let mut _2: [u8; 5000]; // in scope 0 at $DIR/large_array_index.rs:+2:17: +2:29 + let _3: usize; // in scope 0 at $DIR/large_array_index.rs:+2:30: +2:31 + let mut _4: usize; // in scope 0 at $DIR/large_array_index.rs:+2:17: +2:32 + let mut _5: bool; // in scope 0 at $DIR/large_array_index.rs:+2:17: +2:32 + scope 1 { + debug x => _1; // in scope 1 at $DIR/large_array_index.rs:+2:9: +2:10 + } + + bb0: { + StorageLive(_1); // scope 0 at $DIR/large_array_index.rs:+2:9: +2:10 + StorageLive(_2); // scope 0 at $DIR/large_array_index.rs:+2:17: +2:29 + _2 = [const 0_u8; 5000]; // scope 0 at $DIR/large_array_index.rs:+2:17: +2:29 + StorageLive(_3); // scope 0 at $DIR/large_array_index.rs:+2:30: +2:31 + _3 = const 2_usize; // scope 0 at $DIR/large_array_index.rs:+2:30: +2:31 + _4 = const 5000_usize; // scope 0 at $DIR/large_array_index.rs:+2:17: +2:32 +- _5 = Lt(_3, _4); // scope 0 at $DIR/large_array_index.rs:+2:17: +2:32 +- assert(move _5, "index out of bounds: the length is {} but the index is {}", move _4, _3) -> bb1; // scope 0 at $DIR/large_array_index.rs:+2:17: +2:32 ++ _5 = const true; // scope 0 at $DIR/large_array_index.rs:+2:17: +2:32 ++ assert(const true, "index out of bounds: the length is {} but the index is {}", const 5000_usize, const 2_usize) -> bb1; // scope 0 at $DIR/large_array_index.rs:+2:17: +2:32 + } + + bb1: { + _1 = _2[_3]; // scope 0 at $DIR/large_array_index.rs:+2:17: +2:32 + StorageDead(_3); // scope 0 at $DIR/large_array_index.rs:+2:32: +2:33 + StorageDead(_2); // scope 0 at $DIR/large_array_index.rs:+2:32: +2:33 + nop; // scope 0 at $DIR/large_array_index.rs:+0:11: +3:2 + StorageDead(_1); // scope 0 at $DIR/large_array_index.rs:+3:1: +3:2 + return; // scope 0 at $DIR/large_array_index.rs:+3:2: +3:2 + } + } + diff --git a/src/test/mir-opt/const_prop/large_array_index.main.ConstProp.64bit.diff b/src/test/mir-opt/const_prop/large_array_index.main.ConstProp.64bit.diff new file mode 100644 index 000000000..96de39258 --- /dev/null +++ b/src/test/mir-opt/const_prop/large_array_index.main.ConstProp.64bit.diff @@ -0,0 +1,37 @@ +- // MIR for `main` before ConstProp ++ // MIR for `main` after ConstProp + + fn main() -> () { + let mut _0: (); // return place in scope 0 at $DIR/large_array_index.rs:+0:11: +0:11 + let _1: u8; // in scope 0 at $DIR/large_array_index.rs:+2:9: +2:10 + let mut _2: [u8; 5000]; // in scope 0 at $DIR/large_array_index.rs:+2:17: +2:29 + let _3: usize; // in scope 0 at $DIR/large_array_index.rs:+2:30: +2:31 + let mut _4: usize; // in scope 0 at $DIR/large_array_index.rs:+2:17: +2:32 + let mut _5: bool; // in scope 0 at $DIR/large_array_index.rs:+2:17: +2:32 + scope 1 { + debug x => _1; // in scope 1 at $DIR/large_array_index.rs:+2:9: +2:10 + } + + bb0: { + StorageLive(_1); // scope 0 at $DIR/large_array_index.rs:+2:9: +2:10 + StorageLive(_2); // scope 0 at $DIR/large_array_index.rs:+2:17: +2:29 + _2 = [const 0_u8; 5000]; // scope 0 at $DIR/large_array_index.rs:+2:17: +2:29 + StorageLive(_3); // scope 0 at $DIR/large_array_index.rs:+2:30: +2:31 + _3 = const 2_usize; // scope 0 at $DIR/large_array_index.rs:+2:30: +2:31 + _4 = const 5000_usize; // scope 0 at $DIR/large_array_index.rs:+2:17: +2:32 +- _5 = Lt(_3, _4); // scope 0 at $DIR/large_array_index.rs:+2:17: +2:32 +- assert(move _5, "index out of bounds: the length is {} but the index is {}", move _4, _3) -> bb1; // scope 0 at $DIR/large_array_index.rs:+2:17: +2:32 ++ _5 = const true; // scope 0 at $DIR/large_array_index.rs:+2:17: +2:32 ++ assert(const true, "index out of bounds: the length is {} but the index is {}", const 5000_usize, const 2_usize) -> bb1; // scope 0 at $DIR/large_array_index.rs:+2:17: +2:32 + } + + bb1: { + _1 = _2[_3]; // scope 0 at $DIR/large_array_index.rs:+2:17: +2:32 + StorageDead(_3); // scope 0 at $DIR/large_array_index.rs:+2:32: +2:33 + StorageDead(_2); // scope 0 at $DIR/large_array_index.rs:+2:32: +2:33 + nop; // scope 0 at $DIR/large_array_index.rs:+0:11: +3:2 + StorageDead(_1); // scope 0 at $DIR/large_array_index.rs:+3:1: +3:2 + return; // scope 0 at $DIR/large_array_index.rs:+3:2: +3:2 + } + } + diff --git a/src/test/mir-opt/const_prop/large_array_index.rs b/src/test/mir-opt/const_prop/large_array_index.rs new file mode 100644 index 000000000..48d134376 --- /dev/null +++ b/src/test/mir-opt/const_prop/large_array_index.rs @@ -0,0 +1,7 @@ +// EMIT_MIR_FOR_EACH_BIT_WIDTH + +// EMIT_MIR large_array_index.main.ConstProp.diff +fn main() { + // check that we don't propagate this, because it's too large + let x: u8 = [0_u8; 5000][2]; +} diff --git a/src/test/mir-opt/const_prop/mult_by_zero.rs b/src/test/mir-opt/const_prop/mult_by_zero.rs new file mode 100644 index 000000000..b0ecdf181 --- /dev/null +++ b/src/test/mir-opt/const_prop/mult_by_zero.rs @@ -0,0 +1,10 @@ +// compile-flags: -O -Zmir-opt-level=4 + +// EMIT_MIR mult_by_zero.test.ConstProp.diff +fn test(x : i32) -> i32 { + x * 0 +} + +fn main() { + test(10); +} diff --git a/src/test/mir-opt/const_prop/mult_by_zero.test.ConstProp.diff b/src/test/mir-opt/const_prop/mult_by_zero.test.ConstProp.diff new file mode 100644 index 000000000..629c8e601 --- /dev/null +++ b/src/test/mir-opt/const_prop/mult_by_zero.test.ConstProp.diff @@ -0,0 +1,18 @@ +- // MIR for `test` before ConstProp ++ // MIR for `test` after ConstProp + + fn test(_1: i32) -> i32 { + debug x => _1; // in scope 0 at $DIR/mult_by_zero.rs:+0:9: +0:10 + let mut _0: i32; // return place in scope 0 at $DIR/mult_by_zero.rs:+0:21: +0:24 + let mut _2: i32; // in scope 0 at $DIR/mult_by_zero.rs:+1:3: +1:4 + + bb0: { + StorageLive(_2); // scope 0 at $DIR/mult_by_zero.rs:+1:3: +1:4 + _2 = _1; // scope 0 at $DIR/mult_by_zero.rs:+1:3: +1:4 +- _0 = Mul(move _2, const 0_i32); // scope 0 at $DIR/mult_by_zero.rs:+1:3: +1:8 ++ _0 = const 0_i32; // scope 0 at $DIR/mult_by_zero.rs:+1:3: +1:8 + StorageDead(_2); // scope 0 at $DIR/mult_by_zero.rs:+1:7: +1:8 + return; // scope 0 at $DIR/mult_by_zero.rs:+2:2: +2:2 + } + } + diff --git a/src/test/mir-opt/const_prop/mutable_variable.main.ConstProp.diff b/src/test/mir-opt/const_prop/mutable_variable.main.ConstProp.diff new file mode 100644 index 000000000..3bbd6a87f --- /dev/null +++ b/src/test/mir-opt/const_prop/mutable_variable.main.ConstProp.diff @@ -0,0 +1,28 @@ +- // MIR for `main` before ConstProp ++ // MIR for `main` after ConstProp + + fn main() -> () { + let mut _0: (); // return place in scope 0 at $DIR/mutable_variable.rs:+0:11: +0:11 + let mut _1: i32; // in scope 0 at $DIR/mutable_variable.rs:+1:9: +1:14 + scope 1 { + debug x => _1; // in scope 1 at $DIR/mutable_variable.rs:+1:9: +1:14 + let _2: i32; // in scope 1 at $DIR/mutable_variable.rs:+3:9: +3:10 + scope 2 { + debug y => _2; // in scope 2 at $DIR/mutable_variable.rs:+3:9: +3:10 + } + } + + bb0: { + StorageLive(_1); // scope 0 at $DIR/mutable_variable.rs:+1:9: +1:14 + _1 = const 42_i32; // scope 0 at $DIR/mutable_variable.rs:+1:17: +1:19 + _1 = const 99_i32; // scope 1 at $DIR/mutable_variable.rs:+2:5: +2:11 + StorageLive(_2); // scope 1 at $DIR/mutable_variable.rs:+3:9: +3:10 +- _2 = _1; // scope 1 at $DIR/mutable_variable.rs:+3:13: +3:14 ++ _2 = const 99_i32; // scope 1 at $DIR/mutable_variable.rs:+3:13: +3:14 + nop; // scope 0 at $DIR/mutable_variable.rs:+0:11: +4:2 + StorageDead(_2); // scope 1 at $DIR/mutable_variable.rs:+4:1: +4:2 + StorageDead(_1); // scope 0 at $DIR/mutable_variable.rs:+4:1: +4:2 + return; // scope 0 at $DIR/mutable_variable.rs:+4:2: +4:2 + } + } + diff --git a/src/test/mir-opt/const_prop/mutable_variable.rs b/src/test/mir-opt/const_prop/mutable_variable.rs new file mode 100644 index 000000000..801e7a9fc --- /dev/null +++ b/src/test/mir-opt/const_prop/mutable_variable.rs @@ -0,0 +1,8 @@ +// compile-flags: -O + +// EMIT_MIR mutable_variable.main.ConstProp.diff +fn main() { + let mut x = 42; + x = 99; + let y = x; +} diff --git a/src/test/mir-opt/const_prop/mutable_variable_aggregate.main.ConstProp.diff b/src/test/mir-opt/const_prop/mutable_variable_aggregate.main.ConstProp.diff new file mode 100644 index 000000000..fed6a98b9 --- /dev/null +++ b/src/test/mir-opt/const_prop/mutable_variable_aggregate.main.ConstProp.diff @@ -0,0 +1,30 @@ +- // MIR for `main` before ConstProp ++ // MIR for `main` after ConstProp + + fn main() -> () { + let mut _0: (); // return place in scope 0 at $DIR/mutable_variable_aggregate.rs:+0:11: +0:11 + let mut _1: (i32, i32); // in scope 0 at $DIR/mutable_variable_aggregate.rs:+1:9: +1:14 + scope 1 { + debug x => _1; // in scope 1 at $DIR/mutable_variable_aggregate.rs:+1:9: +1:14 + let _2: (i32, i32); // in scope 1 at $DIR/mutable_variable_aggregate.rs:+3:9: +3:10 + scope 2 { + debug y => _2; // in scope 2 at $DIR/mutable_variable_aggregate.rs:+3:9: +3:10 + } + } + + bb0: { + StorageLive(_1); // scope 0 at $DIR/mutable_variable_aggregate.rs:+1:9: +1:14 + Deinit(_1); // scope 0 at $DIR/mutable_variable_aggregate.rs:+1:17: +1:25 + (_1.0: i32) = const 42_i32; // scope 0 at $DIR/mutable_variable_aggregate.rs:+1:17: +1:25 + (_1.1: i32) = const 43_i32; // scope 0 at $DIR/mutable_variable_aggregate.rs:+1:17: +1:25 + (_1.1: i32) = const 99_i32; // scope 1 at $DIR/mutable_variable_aggregate.rs:+2:5: +2:13 + StorageLive(_2); // scope 1 at $DIR/mutable_variable_aggregate.rs:+3:9: +3:10 +- _2 = _1; // scope 1 at $DIR/mutable_variable_aggregate.rs:+3:13: +3:14 ++ _2 = const (42_i32, 99_i32); // scope 1 at $DIR/mutable_variable_aggregate.rs:+3:13: +3:14 + nop; // scope 0 at $DIR/mutable_variable_aggregate.rs:+0:11: +4:2 + StorageDead(_2); // scope 1 at $DIR/mutable_variable_aggregate.rs:+4:1: +4:2 + StorageDead(_1); // scope 0 at $DIR/mutable_variable_aggregate.rs:+4:1: +4:2 + return; // scope 0 at $DIR/mutable_variable_aggregate.rs:+4:2: +4:2 + } + } + diff --git a/src/test/mir-opt/const_prop/mutable_variable_aggregate.rs b/src/test/mir-opt/const_prop/mutable_variable_aggregate.rs new file mode 100644 index 000000000..e0b4b77ba --- /dev/null +++ b/src/test/mir-opt/const_prop/mutable_variable_aggregate.rs @@ -0,0 +1,8 @@ +// compile-flags: -O + +// EMIT_MIR mutable_variable_aggregate.main.ConstProp.diff +fn main() { + let mut x = (42, 43); + x.1 = 99; + let y = x; +} diff --git a/src/test/mir-opt/const_prop/mutable_variable_aggregate_mut_ref.main.ConstProp.diff b/src/test/mir-opt/const_prop/mutable_variable_aggregate_mut_ref.main.ConstProp.diff new file mode 100644 index 000000000..90eebd8fe --- /dev/null +++ b/src/test/mir-opt/const_prop/mutable_variable_aggregate_mut_ref.main.ConstProp.diff @@ -0,0 +1,36 @@ +- // MIR for `main` before ConstProp ++ // MIR for `main` after ConstProp + + fn main() -> () { + let mut _0: (); // return place in scope 0 at $DIR/mutable_variable_aggregate_mut_ref.rs:+0:11: +0:11 + let mut _1: (i32, i32); // in scope 0 at $DIR/mutable_variable_aggregate_mut_ref.rs:+1:9: +1:14 + scope 1 { + debug x => _1; // in scope 1 at $DIR/mutable_variable_aggregate_mut_ref.rs:+1:9: +1:14 + let _2: &mut (i32, i32); // in scope 1 at $DIR/mutable_variable_aggregate_mut_ref.rs:+2:9: +2:10 + scope 2 { + debug z => _2; // in scope 2 at $DIR/mutable_variable_aggregate_mut_ref.rs:+2:9: +2:10 + let _3: (i32, i32); // in scope 2 at $DIR/mutable_variable_aggregate_mut_ref.rs:+4:9: +4:10 + scope 3 { + debug y => _3; // in scope 3 at $DIR/mutable_variable_aggregate_mut_ref.rs:+4:9: +4:10 + } + } + } + + bb0: { + StorageLive(_1); // scope 0 at $DIR/mutable_variable_aggregate_mut_ref.rs:+1:9: +1:14 + Deinit(_1); // scope 0 at $DIR/mutable_variable_aggregate_mut_ref.rs:+1:17: +1:25 + (_1.0: i32) = const 42_i32; // scope 0 at $DIR/mutable_variable_aggregate_mut_ref.rs:+1:17: +1:25 + (_1.1: i32) = const 43_i32; // scope 0 at $DIR/mutable_variable_aggregate_mut_ref.rs:+1:17: +1:25 + StorageLive(_2); // scope 1 at $DIR/mutable_variable_aggregate_mut_ref.rs:+2:9: +2:10 + _2 = &mut _1; // scope 1 at $DIR/mutable_variable_aggregate_mut_ref.rs:+2:13: +2:19 + ((*_2).1: i32) = const 99_i32; // scope 2 at $DIR/mutable_variable_aggregate_mut_ref.rs:+3:5: +3:13 + StorageLive(_3); // scope 2 at $DIR/mutable_variable_aggregate_mut_ref.rs:+4:9: +4:10 + _3 = _1; // scope 2 at $DIR/mutable_variable_aggregate_mut_ref.rs:+4:13: +4:14 + nop; // scope 0 at $DIR/mutable_variable_aggregate_mut_ref.rs:+0:11: +5:2 + StorageDead(_3); // scope 2 at $DIR/mutable_variable_aggregate_mut_ref.rs:+5:1: +5:2 + StorageDead(_2); // scope 1 at $DIR/mutable_variable_aggregate_mut_ref.rs:+5:1: +5:2 + StorageDead(_1); // scope 0 at $DIR/mutable_variable_aggregate_mut_ref.rs:+5:1: +5:2 + return; // scope 0 at $DIR/mutable_variable_aggregate_mut_ref.rs:+5:2: +5:2 + } + } + diff --git a/src/test/mir-opt/const_prop/mutable_variable_aggregate_mut_ref.rs b/src/test/mir-opt/const_prop/mutable_variable_aggregate_mut_ref.rs new file mode 100644 index 000000000..79ac497c7 --- /dev/null +++ b/src/test/mir-opt/const_prop/mutable_variable_aggregate_mut_ref.rs @@ -0,0 +1,9 @@ +// compile-flags: -O + +// EMIT_MIR mutable_variable_aggregate_mut_ref.main.ConstProp.diff +fn main() { + let mut x = (42, 43); + let z = &mut x; + z.1 = 99; + let y = x; +} diff --git a/src/test/mir-opt/const_prop/mutable_variable_aggregate_partial_read.main.ConstProp.diff b/src/test/mir-opt/const_prop/mutable_variable_aggregate_partial_read.main.ConstProp.diff new file mode 100644 index 000000000..c678f7b03 --- /dev/null +++ b/src/test/mir-opt/const_prop/mutable_variable_aggregate_partial_read.main.ConstProp.diff @@ -0,0 +1,35 @@ +- // MIR for `main` before ConstProp ++ // MIR for `main` after ConstProp + + fn main() -> () { + let mut _0: (); // return place in scope 0 at $DIR/mutable_variable_aggregate_partial_read.rs:+0:11: +0:11 + let mut _1: (i32, i32); // in scope 0 at $DIR/mutable_variable_aggregate_partial_read.rs:+1:9: +1:14 + scope 1 { + debug x => _1; // in scope 1 at $DIR/mutable_variable_aggregate_partial_read.rs:+1:9: +1:14 + let _2: i32; // in scope 1 at $DIR/mutable_variable_aggregate_partial_read.rs:+4:9: +4:10 + scope 2 { + debug y => _2; // in scope 2 at $DIR/mutable_variable_aggregate_partial_read.rs:+4:9: +4:10 + } + } + + bb0: { + StorageLive(_1); // scope 0 at $DIR/mutable_variable_aggregate_partial_read.rs:+1:9: +1:14 + _1 = foo() -> bb1; // scope 0 at $DIR/mutable_variable_aggregate_partial_read.rs:+1:29: +1:34 + // mir::Constant + // + span: $DIR/mutable_variable_aggregate_partial_read.rs:5:29: 5:32 + // + literal: Const { ty: fn() -> (i32, i32) {foo}, val: Value(<ZST>) } + } + + bb1: { + (_1.1: i32) = const 99_i32; // scope 1 at $DIR/mutable_variable_aggregate_partial_read.rs:+2:5: +2:13 + (_1.0: i32) = const 42_i32; // scope 1 at $DIR/mutable_variable_aggregate_partial_read.rs:+3:5: +3:13 + StorageLive(_2); // scope 1 at $DIR/mutable_variable_aggregate_partial_read.rs:+4:9: +4:10 +- _2 = (_1.1: i32); // scope 1 at $DIR/mutable_variable_aggregate_partial_read.rs:+4:13: +4:16 ++ _2 = const 99_i32; // scope 1 at $DIR/mutable_variable_aggregate_partial_read.rs:+4:13: +4:16 + nop; // scope 0 at $DIR/mutable_variable_aggregate_partial_read.rs:+0:11: +5:2 + StorageDead(_2); // scope 1 at $DIR/mutable_variable_aggregate_partial_read.rs:+5:1: +5:2 + StorageDead(_1); // scope 0 at $DIR/mutable_variable_aggregate_partial_read.rs:+5:1: +5:2 + return; // scope 0 at $DIR/mutable_variable_aggregate_partial_read.rs:+5:2: +5:2 + } + } + diff --git a/src/test/mir-opt/const_prop/mutable_variable_aggregate_partial_read.rs b/src/test/mir-opt/const_prop/mutable_variable_aggregate_partial_read.rs new file mode 100644 index 000000000..9bb62b897 --- /dev/null +++ b/src/test/mir-opt/const_prop/mutable_variable_aggregate_partial_read.rs @@ -0,0 +1,14 @@ +// compile-flags: -O + +// EMIT_MIR mutable_variable_aggregate_partial_read.main.ConstProp.diff +fn main() { + let mut x: (i32, i32) = foo(); + x.1 = 99; + x.0 = 42; + let y = x.1; +} + +#[inline(never)] +fn foo() -> (i32, i32) { + unimplemented!() +} diff --git a/src/test/mir-opt/const_prop/mutable_variable_no_prop.main.ConstProp.diff b/src/test/mir-opt/const_prop/mutable_variable_no_prop.main.ConstProp.diff new file mode 100644 index 000000000..4c2ba9a09 --- /dev/null +++ b/src/test/mir-opt/const_prop/mutable_variable_no_prop.main.ConstProp.diff @@ -0,0 +1,48 @@ +- // MIR for `main` before ConstProp ++ // MIR for `main` after ConstProp + + fn main() -> () { + let mut _0: (); // return place in scope 0 at $DIR/mutable_variable_no_prop.rs:+0:11: +0:11 + let mut _1: u32; // in scope 0 at $DIR/mutable_variable_no_prop.rs:+1:9: +1:14 + let _2: (); // in scope 0 at $DIR/mutable_variable_no_prop.rs:+2:5: +4:6 + let mut _3: u32; // in scope 0 at $DIR/mutable_variable_no_prop.rs:+3:13: +3:19 + let mut _4: *mut u32; // in scope 0 at $DIR/mutable_variable_no_prop.rs:+3:13: +3:19 + scope 1 { + debug x => _1; // in scope 1 at $DIR/mutable_variable_no_prop.rs:+1:9: +1:14 + let _5: u32; // in scope 1 at $DIR/mutable_variable_no_prop.rs:+5:9: +5:10 + scope 2 { + } + scope 3 { + debug y => _5; // in scope 3 at $DIR/mutable_variable_no_prop.rs:+5:9: +5:10 + } + } + + bb0: { + StorageLive(_1); // scope 0 at $DIR/mutable_variable_no_prop.rs:+1:9: +1:14 + _1 = const 42_u32; // scope 0 at $DIR/mutable_variable_no_prop.rs:+1:17: +1:19 + StorageLive(_2); // scope 1 at $DIR/mutable_variable_no_prop.rs:+2:5: +4:6 + StorageLive(_3); // scope 2 at $DIR/mutable_variable_no_prop.rs:+3:13: +3:19 + StorageLive(_4); // scope 2 at $DIR/mutable_variable_no_prop.rs:+3:13: +3:19 + _4 = const {alloc1: *mut u32}; // scope 2 at $DIR/mutable_variable_no_prop.rs:+3:13: +3:19 + // mir::Constant + // + span: $DIR/mutable_variable_no_prop.rs:9:13: 9:19 + // + literal: Const { ty: *mut u32, val: Value(Scalar(alloc1)) } + _3 = (*_4); // scope 2 at $DIR/mutable_variable_no_prop.rs:+3:13: +3:19 + _1 = move _3; // scope 2 at $DIR/mutable_variable_no_prop.rs:+3:9: +3:19 + StorageDead(_3); // scope 2 at $DIR/mutable_variable_no_prop.rs:+3:18: +3:19 + StorageDead(_4); // scope 2 at $DIR/mutable_variable_no_prop.rs:+3:19: +3:20 + nop; // scope 2 at $DIR/mutable_variable_no_prop.rs:+2:5: +4:6 + StorageDead(_2); // scope 1 at $DIR/mutable_variable_no_prop.rs:+4:5: +4:6 + StorageLive(_5); // scope 1 at $DIR/mutable_variable_no_prop.rs:+5:9: +5:10 + _5 = _1; // scope 1 at $DIR/mutable_variable_no_prop.rs:+5:13: +5:14 + nop; // scope 0 at $DIR/mutable_variable_no_prop.rs:+0:11: +6:2 + StorageDead(_5); // scope 1 at $DIR/mutable_variable_no_prop.rs:+6:1: +6:2 + StorageDead(_1); // scope 0 at $DIR/mutable_variable_no_prop.rs:+6:1: +6:2 + return; // scope 0 at $DIR/mutable_variable_no_prop.rs:+6:2: +6:2 + } + } + + alloc1 (static: STATIC, size: 4, align: 4) { + 2a 00 00 00 │ *... + } + diff --git a/src/test/mir-opt/const_prop/mutable_variable_no_prop.rs b/src/test/mir-opt/const_prop/mutable_variable_no_prop.rs new file mode 100644 index 000000000..4126fb3c6 --- /dev/null +++ b/src/test/mir-opt/const_prop/mutable_variable_no_prop.rs @@ -0,0 +1,12 @@ +// compile-flags: -O + +static mut STATIC: u32 = 42; + +// EMIT_MIR mutable_variable_no_prop.main.ConstProp.diff +fn main() { + let mut x = 42; + unsafe { + x = STATIC; + } + let y = x; +} diff --git a/src/test/mir-opt/const_prop/mutable_variable_unprop_assign.main.ConstProp.diff b/src/test/mir-opt/const_prop/mutable_variable_unprop_assign.main.ConstProp.diff new file mode 100644 index 000000000..5328792b3 --- /dev/null +++ b/src/test/mir-opt/const_prop/mutable_variable_unprop_assign.main.ConstProp.diff @@ -0,0 +1,53 @@ +- // MIR for `main` before ConstProp ++ // MIR for `main` after ConstProp + + fn main() -> () { + let mut _0: (); // return place in scope 0 at $DIR/mutable_variable_unprop_assign.rs:+0:11: +0:11 + let _1: i32; // in scope 0 at $DIR/mutable_variable_unprop_assign.rs:+1:9: +1:10 + let mut _3: i32; // in scope 0 at $DIR/mutable_variable_unprop_assign.rs:+3:11: +3:12 + scope 1 { + debug a => _1; // in scope 1 at $DIR/mutable_variable_unprop_assign.rs:+1:9: +1:10 + let mut _2: (i32, i32); // in scope 1 at $DIR/mutable_variable_unprop_assign.rs:+2:9: +2:14 + scope 2 { + debug x => _2; // in scope 2 at $DIR/mutable_variable_unprop_assign.rs:+2:9: +2:14 + let _4: i32; // in scope 2 at $DIR/mutable_variable_unprop_assign.rs:+4:9: +4:10 + scope 3 { + debug y => _4; // in scope 3 at $DIR/mutable_variable_unprop_assign.rs:+4:9: +4:10 + let _5: i32; // in scope 3 at $DIR/mutable_variable_unprop_assign.rs:+5:9: +5:10 + scope 4 { + debug z => _5; // in scope 4 at $DIR/mutable_variable_unprop_assign.rs:+5:9: +5:10 + } + } + } + } + + bb0: { + StorageLive(_1); // scope 0 at $DIR/mutable_variable_unprop_assign.rs:+1:9: +1:10 + _1 = foo() -> bb1; // scope 0 at $DIR/mutable_variable_unprop_assign.rs:+1:13: +1:18 + // mir::Constant + // + span: $DIR/mutable_variable_unprop_assign.rs:5:13: 5:16 + // + literal: Const { ty: fn() -> i32 {foo}, val: Value(<ZST>) } + } + + bb1: { + StorageLive(_2); // scope 1 at $DIR/mutable_variable_unprop_assign.rs:+2:9: +2:14 + Deinit(_2); // scope 1 at $DIR/mutable_variable_unprop_assign.rs:+2:29: +2:35 + (_2.0: i32) = const 1_i32; // scope 1 at $DIR/mutable_variable_unprop_assign.rs:+2:29: +2:35 + (_2.1: i32) = const 2_i32; // scope 1 at $DIR/mutable_variable_unprop_assign.rs:+2:29: +2:35 + StorageLive(_3); // scope 2 at $DIR/mutable_variable_unprop_assign.rs:+3:11: +3:12 + _3 = _1; // scope 2 at $DIR/mutable_variable_unprop_assign.rs:+3:11: +3:12 + (_2.1: i32) = move _3; // scope 2 at $DIR/mutable_variable_unprop_assign.rs:+3:5: +3:12 + StorageDead(_3); // scope 2 at $DIR/mutable_variable_unprop_assign.rs:+3:11: +3:12 + StorageLive(_4); // scope 2 at $DIR/mutable_variable_unprop_assign.rs:+4:9: +4:10 + _4 = (_2.1: i32); // scope 2 at $DIR/mutable_variable_unprop_assign.rs:+4:13: +4:16 + StorageLive(_5); // scope 3 at $DIR/mutable_variable_unprop_assign.rs:+5:9: +5:10 + _5 = (_2.0: i32); // scope 3 at $DIR/mutable_variable_unprop_assign.rs:+5:13: +5:16 + nop; // scope 0 at $DIR/mutable_variable_unprop_assign.rs:+0:11: +6:2 + StorageDead(_5); // scope 3 at $DIR/mutable_variable_unprop_assign.rs:+6:1: +6:2 + StorageDead(_4); // scope 2 at $DIR/mutable_variable_unprop_assign.rs:+6:1: +6:2 + StorageDead(_2); // scope 1 at $DIR/mutable_variable_unprop_assign.rs:+6:1: +6:2 + StorageDead(_1); // scope 0 at $DIR/mutable_variable_unprop_assign.rs:+6:1: +6:2 + return; // scope 0 at $DIR/mutable_variable_unprop_assign.rs:+6:2: +6:2 + } + } + diff --git a/src/test/mir-opt/const_prop/mutable_variable_unprop_assign.rs b/src/test/mir-opt/const_prop/mutable_variable_unprop_assign.rs new file mode 100644 index 000000000..13f1b3f47 --- /dev/null +++ b/src/test/mir-opt/const_prop/mutable_variable_unprop_assign.rs @@ -0,0 +1,15 @@ +// compile-flags: -O + +// EMIT_MIR mutable_variable_unprop_assign.main.ConstProp.diff +fn main() { + let a = foo(); + let mut x: (i32, i32) = (1, 2); + x.1 = a; + let y = x.1; + let z = x.0; // this could theoretically be allowed, but we can't handle it right now +} + +#[inline(never)] +fn foo() -> i32 { + unimplemented!() +} diff --git a/src/test/mir-opt/const_prop/optimizes_into_variable.main.ConstProp.32bit.diff b/src/test/mir-opt/const_prop/optimizes_into_variable.main.ConstProp.32bit.diff new file mode 100644 index 000000000..94aadfaf8 --- /dev/null +++ b/src/test/mir-opt/const_prop/optimizes_into_variable.main.ConstProp.32bit.diff @@ -0,0 +1,68 @@ +- // MIR for `main` before ConstProp ++ // MIR for `main` after ConstProp + + fn main() -> () { + let mut _0: (); // return place in scope 0 at $DIR/optimizes_into_variable.rs:+0:11: +0:11 + let _1: i32; // in scope 0 at $DIR/optimizes_into_variable.rs:+1:9: +1:10 + let mut _2: (i32, bool); // in scope 0 at $DIR/optimizes_into_variable.rs:+1:13: +1:18 + let mut _4: [i32; 6]; // in scope 0 at $DIR/optimizes_into_variable.rs:+2:13: +2:31 + let _5: usize; // in scope 0 at $DIR/optimizes_into_variable.rs:+2:32: +2:33 + let mut _6: usize; // in scope 0 at $DIR/optimizes_into_variable.rs:+2:13: +2:34 + let mut _7: bool; // in scope 0 at $DIR/optimizes_into_variable.rs:+2:13: +2:34 + let mut _9: Point; // in scope 0 at $DIR/optimizes_into_variable.rs:+3:13: +3:36 + scope 1 { + debug x => _1; // in scope 1 at $DIR/optimizes_into_variable.rs:+1:9: +1:10 + let _3: i32; // in scope 1 at $DIR/optimizes_into_variable.rs:+2:9: +2:10 + scope 2 { + debug y => _3; // in scope 2 at $DIR/optimizes_into_variable.rs:+2:9: +2:10 + let _8: u32; // in scope 2 at $DIR/optimizes_into_variable.rs:+3:9: +3:10 + scope 3 { + debug z => _8; // in scope 3 at $DIR/optimizes_into_variable.rs:+3:9: +3:10 + } + } + } + + bb0: { + StorageLive(_1); // scope 0 at $DIR/optimizes_into_variable.rs:+1:9: +1:10 +- _2 = CheckedAdd(const 2_i32, const 2_i32); // scope 0 at $DIR/optimizes_into_variable.rs:+1:13: +1:18 +- assert(!move (_2.1: bool), "attempt to compute `{} + {}`, which would overflow", const 2_i32, const 2_i32) -> bb1; // scope 0 at $DIR/optimizes_into_variable.rs:+1:13: +1:18 ++ _2 = const (4_i32, false); // scope 0 at $DIR/optimizes_into_variable.rs:+1:13: +1:18 ++ assert(!const false, "attempt to compute `{} + {}`, which would overflow", const 2_i32, const 2_i32) -> bb1; // scope 0 at $DIR/optimizes_into_variable.rs:+1:13: +1:18 + } + + bb1: { +- _1 = move (_2.0: i32); // scope 0 at $DIR/optimizes_into_variable.rs:+1:13: +1:18 ++ _1 = const 4_i32; // scope 0 at $DIR/optimizes_into_variable.rs:+1:13: +1:18 + StorageLive(_3); // scope 1 at $DIR/optimizes_into_variable.rs:+2:9: +2:10 + StorageLive(_4); // scope 1 at $DIR/optimizes_into_variable.rs:+2:13: +2:31 + _4 = [const 0_i32, const 1_i32, const 2_i32, const 3_i32, const 4_i32, const 5_i32]; // scope 1 at $DIR/optimizes_into_variable.rs:+2:13: +2:31 + StorageLive(_5); // scope 1 at $DIR/optimizes_into_variable.rs:+2:32: +2:33 + _5 = const 3_usize; // scope 1 at $DIR/optimizes_into_variable.rs:+2:32: +2:33 + _6 = const 6_usize; // scope 1 at $DIR/optimizes_into_variable.rs:+2:13: +2:34 +- _7 = Lt(_5, _6); // scope 1 at $DIR/optimizes_into_variable.rs:+2:13: +2:34 +- assert(move _7, "index out of bounds: the length is {} but the index is {}", move _6, _5) -> bb2; // scope 1 at $DIR/optimizes_into_variable.rs:+2:13: +2:34 ++ _7 = const true; // scope 1 at $DIR/optimizes_into_variable.rs:+2:13: +2:34 ++ assert(const true, "index out of bounds: the length is {} but the index is {}", const 6_usize, const 3_usize) -> bb2; // scope 1 at $DIR/optimizes_into_variable.rs:+2:13: +2:34 + } + + bb2: { +- _3 = _4[_5]; // scope 1 at $DIR/optimizes_into_variable.rs:+2:13: +2:34 ++ _3 = const 3_i32; // scope 1 at $DIR/optimizes_into_variable.rs:+2:13: +2:34 + StorageDead(_5); // scope 1 at $DIR/optimizes_into_variable.rs:+2:34: +2:35 + StorageDead(_4); // scope 1 at $DIR/optimizes_into_variable.rs:+2:34: +2:35 + StorageLive(_8); // scope 2 at $DIR/optimizes_into_variable.rs:+3:9: +3:10 + StorageLive(_9); // scope 2 at $DIR/optimizes_into_variable.rs:+3:13: +3:36 + Deinit(_9); // scope 2 at $DIR/optimizes_into_variable.rs:+3:13: +3:36 + (_9.0: u32) = const 12_u32; // scope 2 at $DIR/optimizes_into_variable.rs:+3:13: +3:36 + (_9.1: u32) = const 42_u32; // scope 2 at $DIR/optimizes_into_variable.rs:+3:13: +3:36 +- _8 = (_9.1: u32); // scope 2 at $DIR/optimizes_into_variable.rs:+3:13: +3:38 ++ _8 = const 42_u32; // scope 2 at $DIR/optimizes_into_variable.rs:+3:13: +3:38 + StorageDead(_9); // scope 2 at $DIR/optimizes_into_variable.rs:+3:38: +3:39 + nop; // scope 0 at $DIR/optimizes_into_variable.rs:+0:11: +4:2 + StorageDead(_8); // scope 2 at $DIR/optimizes_into_variable.rs:+4:1: +4:2 + StorageDead(_3); // scope 1 at $DIR/optimizes_into_variable.rs:+4:1: +4:2 + StorageDead(_1); // scope 0 at $DIR/optimizes_into_variable.rs:+4:1: +4:2 + return; // scope 0 at $DIR/optimizes_into_variable.rs:+4:2: +4:2 + } + } + diff --git a/src/test/mir-opt/const_prop/optimizes_into_variable.main.ConstProp.64bit.diff b/src/test/mir-opt/const_prop/optimizes_into_variable.main.ConstProp.64bit.diff new file mode 100644 index 000000000..94aadfaf8 --- /dev/null +++ b/src/test/mir-opt/const_prop/optimizes_into_variable.main.ConstProp.64bit.diff @@ -0,0 +1,68 @@ +- // MIR for `main` before ConstProp ++ // MIR for `main` after ConstProp + + fn main() -> () { + let mut _0: (); // return place in scope 0 at $DIR/optimizes_into_variable.rs:+0:11: +0:11 + let _1: i32; // in scope 0 at $DIR/optimizes_into_variable.rs:+1:9: +1:10 + let mut _2: (i32, bool); // in scope 0 at $DIR/optimizes_into_variable.rs:+1:13: +1:18 + let mut _4: [i32; 6]; // in scope 0 at $DIR/optimizes_into_variable.rs:+2:13: +2:31 + let _5: usize; // in scope 0 at $DIR/optimizes_into_variable.rs:+2:32: +2:33 + let mut _6: usize; // in scope 0 at $DIR/optimizes_into_variable.rs:+2:13: +2:34 + let mut _7: bool; // in scope 0 at $DIR/optimizes_into_variable.rs:+2:13: +2:34 + let mut _9: Point; // in scope 0 at $DIR/optimizes_into_variable.rs:+3:13: +3:36 + scope 1 { + debug x => _1; // in scope 1 at $DIR/optimizes_into_variable.rs:+1:9: +1:10 + let _3: i32; // in scope 1 at $DIR/optimizes_into_variable.rs:+2:9: +2:10 + scope 2 { + debug y => _3; // in scope 2 at $DIR/optimizes_into_variable.rs:+2:9: +2:10 + let _8: u32; // in scope 2 at $DIR/optimizes_into_variable.rs:+3:9: +3:10 + scope 3 { + debug z => _8; // in scope 3 at $DIR/optimizes_into_variable.rs:+3:9: +3:10 + } + } + } + + bb0: { + StorageLive(_1); // scope 0 at $DIR/optimizes_into_variable.rs:+1:9: +1:10 +- _2 = CheckedAdd(const 2_i32, const 2_i32); // scope 0 at $DIR/optimizes_into_variable.rs:+1:13: +1:18 +- assert(!move (_2.1: bool), "attempt to compute `{} + {}`, which would overflow", const 2_i32, const 2_i32) -> bb1; // scope 0 at $DIR/optimizes_into_variable.rs:+1:13: +1:18 ++ _2 = const (4_i32, false); // scope 0 at $DIR/optimizes_into_variable.rs:+1:13: +1:18 ++ assert(!const false, "attempt to compute `{} + {}`, which would overflow", const 2_i32, const 2_i32) -> bb1; // scope 0 at $DIR/optimizes_into_variable.rs:+1:13: +1:18 + } + + bb1: { +- _1 = move (_2.0: i32); // scope 0 at $DIR/optimizes_into_variable.rs:+1:13: +1:18 ++ _1 = const 4_i32; // scope 0 at $DIR/optimizes_into_variable.rs:+1:13: +1:18 + StorageLive(_3); // scope 1 at $DIR/optimizes_into_variable.rs:+2:9: +2:10 + StorageLive(_4); // scope 1 at $DIR/optimizes_into_variable.rs:+2:13: +2:31 + _4 = [const 0_i32, const 1_i32, const 2_i32, const 3_i32, const 4_i32, const 5_i32]; // scope 1 at $DIR/optimizes_into_variable.rs:+2:13: +2:31 + StorageLive(_5); // scope 1 at $DIR/optimizes_into_variable.rs:+2:32: +2:33 + _5 = const 3_usize; // scope 1 at $DIR/optimizes_into_variable.rs:+2:32: +2:33 + _6 = const 6_usize; // scope 1 at $DIR/optimizes_into_variable.rs:+2:13: +2:34 +- _7 = Lt(_5, _6); // scope 1 at $DIR/optimizes_into_variable.rs:+2:13: +2:34 +- assert(move _7, "index out of bounds: the length is {} but the index is {}", move _6, _5) -> bb2; // scope 1 at $DIR/optimizes_into_variable.rs:+2:13: +2:34 ++ _7 = const true; // scope 1 at $DIR/optimizes_into_variable.rs:+2:13: +2:34 ++ assert(const true, "index out of bounds: the length is {} but the index is {}", const 6_usize, const 3_usize) -> bb2; // scope 1 at $DIR/optimizes_into_variable.rs:+2:13: +2:34 + } + + bb2: { +- _3 = _4[_5]; // scope 1 at $DIR/optimizes_into_variable.rs:+2:13: +2:34 ++ _3 = const 3_i32; // scope 1 at $DIR/optimizes_into_variable.rs:+2:13: +2:34 + StorageDead(_5); // scope 1 at $DIR/optimizes_into_variable.rs:+2:34: +2:35 + StorageDead(_4); // scope 1 at $DIR/optimizes_into_variable.rs:+2:34: +2:35 + StorageLive(_8); // scope 2 at $DIR/optimizes_into_variable.rs:+3:9: +3:10 + StorageLive(_9); // scope 2 at $DIR/optimizes_into_variable.rs:+3:13: +3:36 + Deinit(_9); // scope 2 at $DIR/optimizes_into_variable.rs:+3:13: +3:36 + (_9.0: u32) = const 12_u32; // scope 2 at $DIR/optimizes_into_variable.rs:+3:13: +3:36 + (_9.1: u32) = const 42_u32; // scope 2 at $DIR/optimizes_into_variable.rs:+3:13: +3:36 +- _8 = (_9.1: u32); // scope 2 at $DIR/optimizes_into_variable.rs:+3:13: +3:38 ++ _8 = const 42_u32; // scope 2 at $DIR/optimizes_into_variable.rs:+3:13: +3:38 + StorageDead(_9); // scope 2 at $DIR/optimizes_into_variable.rs:+3:38: +3:39 + nop; // scope 0 at $DIR/optimizes_into_variable.rs:+0:11: +4:2 + StorageDead(_8); // scope 2 at $DIR/optimizes_into_variable.rs:+4:1: +4:2 + StorageDead(_3); // scope 1 at $DIR/optimizes_into_variable.rs:+4:1: +4:2 + StorageDead(_1); // scope 0 at $DIR/optimizes_into_variable.rs:+4:1: +4:2 + return; // scope 0 at $DIR/optimizes_into_variable.rs:+4:2: +4:2 + } + } + diff --git a/src/test/mir-opt/const_prop/optimizes_into_variable.main.SimplifyLocals.after.32bit.mir b/src/test/mir-opt/const_prop/optimizes_into_variable.main.SimplifyLocals.after.32bit.mir new file mode 100644 index 000000000..75cea8ad2 --- /dev/null +++ b/src/test/mir-opt/const_prop/optimizes_into_variable.main.SimplifyLocals.after.32bit.mir @@ -0,0 +1,27 @@ +// MIR for `main` after SimplifyLocals + +fn main() -> () { + let mut _0: (); // return place in scope 0 at $DIR/optimizes_into_variable.rs:+0:11: +0:11 + let _1: i32; // in scope 0 at $DIR/optimizes_into_variable.rs:+1:9: +1:10 + scope 1 { + debug x => _1; // in scope 1 at $DIR/optimizes_into_variable.rs:+1:9: +1:10 + let _2: i32; // in scope 1 at $DIR/optimizes_into_variable.rs:+2:9: +2:10 + scope 2 { + debug y => _2; // in scope 2 at $DIR/optimizes_into_variable.rs:+2:9: +2:10 + let _3: u32; // in scope 2 at $DIR/optimizes_into_variable.rs:+3:9: +3:10 + scope 3 { + debug z => _3; // in scope 3 at $DIR/optimizes_into_variable.rs:+3:9: +3:10 + } + } + } + + bb0: { + StorageLive(_1); // scope 0 at $DIR/optimizes_into_variable.rs:+1:9: +1:10 + StorageLive(_2); // scope 1 at $DIR/optimizes_into_variable.rs:+2:9: +2:10 + StorageLive(_3); // scope 2 at $DIR/optimizes_into_variable.rs:+3:9: +3:10 + StorageDead(_3); // scope 2 at $DIR/optimizes_into_variable.rs:+4:1: +4:2 + StorageDead(_2); // scope 1 at $DIR/optimizes_into_variable.rs:+4:1: +4:2 + StorageDead(_1); // scope 0 at $DIR/optimizes_into_variable.rs:+4:1: +4:2 + return; // scope 0 at $DIR/optimizes_into_variable.rs:+4:2: +4:2 + } +} diff --git a/src/test/mir-opt/const_prop/optimizes_into_variable.main.SimplifyLocals.after.64bit.mir b/src/test/mir-opt/const_prop/optimizes_into_variable.main.SimplifyLocals.after.64bit.mir new file mode 100644 index 000000000..75cea8ad2 --- /dev/null +++ b/src/test/mir-opt/const_prop/optimizes_into_variable.main.SimplifyLocals.after.64bit.mir @@ -0,0 +1,27 @@ +// MIR for `main` after SimplifyLocals + +fn main() -> () { + let mut _0: (); // return place in scope 0 at $DIR/optimizes_into_variable.rs:+0:11: +0:11 + let _1: i32; // in scope 0 at $DIR/optimizes_into_variable.rs:+1:9: +1:10 + scope 1 { + debug x => _1; // in scope 1 at $DIR/optimizes_into_variable.rs:+1:9: +1:10 + let _2: i32; // in scope 1 at $DIR/optimizes_into_variable.rs:+2:9: +2:10 + scope 2 { + debug y => _2; // in scope 2 at $DIR/optimizes_into_variable.rs:+2:9: +2:10 + let _3: u32; // in scope 2 at $DIR/optimizes_into_variable.rs:+3:9: +3:10 + scope 3 { + debug z => _3; // in scope 3 at $DIR/optimizes_into_variable.rs:+3:9: +3:10 + } + } + } + + bb0: { + StorageLive(_1); // scope 0 at $DIR/optimizes_into_variable.rs:+1:9: +1:10 + StorageLive(_2); // scope 1 at $DIR/optimizes_into_variable.rs:+2:9: +2:10 + StorageLive(_3); // scope 2 at $DIR/optimizes_into_variable.rs:+3:9: +3:10 + StorageDead(_3); // scope 2 at $DIR/optimizes_into_variable.rs:+4:1: +4:2 + StorageDead(_2); // scope 1 at $DIR/optimizes_into_variable.rs:+4:1: +4:2 + StorageDead(_1); // scope 0 at $DIR/optimizes_into_variable.rs:+4:1: +4:2 + return; // scope 0 at $DIR/optimizes_into_variable.rs:+4:2: +4:2 + } +} diff --git a/src/test/mir-opt/const_prop/optimizes_into_variable.rs b/src/test/mir-opt/const_prop/optimizes_into_variable.rs new file mode 100644 index 000000000..17265b7eb --- /dev/null +++ b/src/test/mir-opt/const_prop/optimizes_into_variable.rs @@ -0,0 +1,15 @@ +// compile-flags: -C overflow-checks=on + +struct Point { + x: u32, + y: u32, +} + +// EMIT_MIR_FOR_EACH_BIT_WIDTH +// EMIT_MIR optimizes_into_variable.main.ConstProp.diff +// EMIT_MIR optimizes_into_variable.main.SimplifyLocals.after.mir +fn main() { + let x = 2 + 2; + let y = [0, 1, 2, 3, 4, 5][3]; + let z = (Point { x: 12, y: 42}).y; +} diff --git a/src/test/mir-opt/const_prop/read_immutable_static.main.ConstProp.diff b/src/test/mir-opt/const_prop/read_immutable_static.main.ConstProp.diff new file mode 100644 index 000000000..89f43d751 --- /dev/null +++ b/src/test/mir-opt/const_prop/read_immutable_static.main.ConstProp.diff @@ -0,0 +1,48 @@ +- // MIR for `main` before ConstProp ++ // MIR for `main` after ConstProp + + fn main() -> () { + let mut _0: (); // return place in scope 0 at $DIR/read_immutable_static.rs:+0:11: +0:11 + let _1: u8; // in scope 0 at $DIR/read_immutable_static.rs:+1:9: +1:10 + let mut _2: u8; // in scope 0 at $DIR/read_immutable_static.rs:+1:13: +1:16 + let mut _3: &u8; // in scope 0 at $DIR/read_immutable_static.rs:+1:13: +1:16 + let mut _4: u8; // in scope 0 at $DIR/read_immutable_static.rs:+1:19: +1:22 + let mut _5: &u8; // in scope 0 at $DIR/read_immutable_static.rs:+1:19: +1:22 + scope 1 { + debug x => _1; // in scope 1 at $DIR/read_immutable_static.rs:+1:9: +1:10 + } + + bb0: { + StorageLive(_1); // scope 0 at $DIR/read_immutable_static.rs:+1:9: +1:10 + StorageLive(_2); // scope 0 at $DIR/read_immutable_static.rs:+1:13: +1:16 + StorageLive(_3); // scope 0 at $DIR/read_immutable_static.rs:+1:13: +1:16 + _3 = const {alloc1: &u8}; // scope 0 at $DIR/read_immutable_static.rs:+1:13: +1:16 + // mir::Constant + // + span: $DIR/read_immutable_static.rs:7:13: 7:16 + // + literal: Const { ty: &u8, val: Value(Scalar(alloc1)) } +- _2 = (*_3); // scope 0 at $DIR/read_immutable_static.rs:+1:13: +1:16 ++ _2 = const 2_u8; // scope 0 at $DIR/read_immutable_static.rs:+1:13: +1:16 + StorageLive(_4); // scope 0 at $DIR/read_immutable_static.rs:+1:19: +1:22 + StorageLive(_5); // scope 0 at $DIR/read_immutable_static.rs:+1:19: +1:22 + _5 = const {alloc1: &u8}; // scope 0 at $DIR/read_immutable_static.rs:+1:19: +1:22 + // mir::Constant + // + span: $DIR/read_immutable_static.rs:7:19: 7:22 + // + literal: Const { ty: &u8, val: Value(Scalar(alloc1)) } +- _4 = (*_5); // scope 0 at $DIR/read_immutable_static.rs:+1:19: +1:22 +- _1 = Add(move _2, move _4); // scope 0 at $DIR/read_immutable_static.rs:+1:13: +1:22 ++ _4 = const 2_u8; // scope 0 at $DIR/read_immutable_static.rs:+1:19: +1:22 ++ _1 = const 4_u8; // scope 0 at $DIR/read_immutable_static.rs:+1:13: +1:22 + StorageDead(_4); // scope 0 at $DIR/read_immutable_static.rs:+1:21: +1:22 + StorageDead(_2); // scope 0 at $DIR/read_immutable_static.rs:+1:21: +1:22 + StorageDead(_5); // scope 0 at $DIR/read_immutable_static.rs:+1:22: +1:23 + StorageDead(_3); // scope 0 at $DIR/read_immutable_static.rs:+1:22: +1:23 + nop; // scope 0 at $DIR/read_immutable_static.rs:+0:11: +2:2 + StorageDead(_1); // scope 0 at $DIR/read_immutable_static.rs:+2:1: +2:2 + return; // scope 0 at $DIR/read_immutable_static.rs:+2:2: +2:2 + } + } + + alloc1 (static: FOO, size: 1, align: 1) { + 02 │ . + } + diff --git a/src/test/mir-opt/const_prop/read_immutable_static.rs b/src/test/mir-opt/const_prop/read_immutable_static.rs new file mode 100644 index 000000000..8a5f12c6f --- /dev/null +++ b/src/test/mir-opt/const_prop/read_immutable_static.rs @@ -0,0 +1,8 @@ +// compile-flags: -O + +static FOO: u8 = 2; + +// EMIT_MIR read_immutable_static.main.ConstProp.diff +fn main() { + let x = FOO + FOO; +} diff --git a/src/test/mir-opt/const_prop/ref_deref.main.ConstProp.diff b/src/test/mir-opt/const_prop/ref_deref.main.ConstProp.diff new file mode 100644 index 000000000..c8b09220f --- /dev/null +++ b/src/test/mir-opt/const_prop/ref_deref.main.ConstProp.diff @@ -0,0 +1,27 @@ +- // MIR for `main` before ConstProp ++ // MIR for `main` after ConstProp + + fn main() -> () { + let mut _0: (); // return place in scope 0 at $DIR/ref_deref.rs:+0:11: +0:11 + let _1: i32; // in scope 0 at $DIR/ref_deref.rs:+1:5: +1:10 + let mut _2: &i32; // in scope 0 at $DIR/ref_deref.rs:+1:6: +1:10 + let _3: i32; // in scope 0 at $DIR/ref_deref.rs:+1:8: +1:9 + let mut _4: &i32; // in scope 0 at $DIR/ref_deref.rs:+1:6: +1:10 + + bb0: { + StorageLive(_1); // scope 0 at $DIR/ref_deref.rs:+1:5: +1:10 + StorageLive(_2); // scope 0 at $DIR/ref_deref.rs:+1:6: +1:10 + _4 = const main::promoted[0]; // scope 0 at $DIR/ref_deref.rs:+1:6: +1:10 + // mir::Constant + // + span: $DIR/ref_deref.rs:5:6: 5:10 + // + literal: Const { ty: &i32, val: Unevaluated(main, [], Some(promoted[0])) } + _2 = _4; // scope 0 at $DIR/ref_deref.rs:+1:6: +1:10 +- _1 = (*_2); // scope 0 at $DIR/ref_deref.rs:+1:5: +1:10 ++ _1 = const 4_i32; // scope 0 at $DIR/ref_deref.rs:+1:5: +1:10 + StorageDead(_2); // scope 0 at $DIR/ref_deref.rs:+1:10: +1:11 + StorageDead(_1); // scope 0 at $DIR/ref_deref.rs:+1:10: +1:11 + nop; // scope 0 at $DIR/ref_deref.rs:+0:11: +2:2 + return; // scope 0 at $DIR/ref_deref.rs:+2:2: +2:2 + } + } + diff --git a/src/test/mir-opt/const_prop/ref_deref.main.PromoteTemps.diff b/src/test/mir-opt/const_prop/ref_deref.main.PromoteTemps.diff new file mode 100644 index 000000000..d141d2cf8 --- /dev/null +++ b/src/test/mir-opt/const_prop/ref_deref.main.PromoteTemps.diff @@ -0,0 +1,30 @@ +- // MIR for `main` before PromoteTemps ++ // MIR for `main` after PromoteTemps + + fn main() -> () { + let mut _0: (); // return place in scope 0 at $DIR/ref_deref.rs:+0:11: +0:11 + let _1: i32; // in scope 0 at $DIR/ref_deref.rs:+1:5: +1:10 + let mut _2: &i32; // in scope 0 at $DIR/ref_deref.rs:+1:6: +1:10 + let _3: i32; // in scope 0 at $DIR/ref_deref.rs:+1:8: +1:9 ++ let mut _4: &i32; // in scope 0 at $DIR/ref_deref.rs:+1:6: +1:10 + + bb0: { + StorageLive(_1); // scope 0 at $DIR/ref_deref.rs:+1:5: +1:10 + StorageLive(_2); // scope 0 at $DIR/ref_deref.rs:+1:6: +1:10 +- StorageLive(_3); // scope 0 at $DIR/ref_deref.rs:+1:8: +1:9 +- _3 = const 4_i32; // scope 0 at $DIR/ref_deref.rs:+1:8: +1:9 +- _2 = &_3; // scope 0 at $DIR/ref_deref.rs:+1:6: +1:10 ++ _4 = const main::promoted[0]; // scope 0 at $DIR/ref_deref.rs:+1:6: +1:10 ++ // mir::Constant ++ // + span: $DIR/ref_deref.rs:5:6: 5:10 ++ // + literal: Const { ty: &i32, val: Unevaluated(main, [], Some(promoted[0])) } ++ _2 = &(*_4); // scope 0 at $DIR/ref_deref.rs:+1:6: +1:10 + _1 = (*_2); // scope 0 at $DIR/ref_deref.rs:+1:5: +1:10 +- StorageDead(_3); // scope 0 at $DIR/ref_deref.rs:+1:10: +1:11 + StorageDead(_2); // scope 0 at $DIR/ref_deref.rs:+1:10: +1:11 + StorageDead(_1); // scope 0 at $DIR/ref_deref.rs:+1:10: +1:11 + _0 = const (); // scope 0 at $DIR/ref_deref.rs:+0:11: +2:2 + return; // scope 0 at $DIR/ref_deref.rs:+2:2: +2:2 + } + } + diff --git a/src/test/mir-opt/const_prop/ref_deref.rs b/src/test/mir-opt/const_prop/ref_deref.rs new file mode 100644 index 000000000..30ec97663 --- /dev/null +++ b/src/test/mir-opt/const_prop/ref_deref.rs @@ -0,0 +1,6 @@ +// EMIT_MIR ref_deref.main.PromoteTemps.diff +// EMIT_MIR ref_deref.main.ConstProp.diff + +fn main() { + *(&4); +} diff --git a/src/test/mir-opt/const_prop/ref_deref_project.main.ConstProp.diff b/src/test/mir-opt/const_prop/ref_deref_project.main.ConstProp.diff new file mode 100644 index 000000000..f0c89caea --- /dev/null +++ b/src/test/mir-opt/const_prop/ref_deref_project.main.ConstProp.diff @@ -0,0 +1,26 @@ +- // MIR for `main` before ConstProp ++ // MIR for `main` after ConstProp + + fn main() -> () { + let mut _0: (); // return place in scope 0 at $DIR/ref_deref_project.rs:+0:11: +0:11 + let _1: i32; // in scope 0 at $DIR/ref_deref_project.rs:+1:5: +1:17 + let mut _2: &i32; // in scope 0 at $DIR/ref_deref_project.rs:+1:6: +1:17 + let _3: (i32, i32); // in scope 0 at $DIR/ref_deref_project.rs:+1:8: +1:14 + let mut _4: &(i32, i32); // in scope 0 at $DIR/ref_deref_project.rs:+1:6: +1:17 + + bb0: { + StorageLive(_1); // scope 0 at $DIR/ref_deref_project.rs:+1:5: +1:17 + StorageLive(_2); // scope 0 at $DIR/ref_deref_project.rs:+1:6: +1:17 + _4 = const main::promoted[0]; // scope 0 at $DIR/ref_deref_project.rs:+1:6: +1:17 + // mir::Constant + // + span: $DIR/ref_deref_project.rs:5:6: 5:17 + // + literal: Const { ty: &(i32, i32), val: Unevaluated(main, [], Some(promoted[0])) } + _2 = &((*_4).1: i32); // scope 0 at $DIR/ref_deref_project.rs:+1:6: +1:17 + _1 = (*_2); // scope 0 at $DIR/ref_deref_project.rs:+1:5: +1:17 + StorageDead(_2); // scope 0 at $DIR/ref_deref_project.rs:+1:17: +1:18 + StorageDead(_1); // scope 0 at $DIR/ref_deref_project.rs:+1:17: +1:18 + nop; // scope 0 at $DIR/ref_deref_project.rs:+0:11: +2:2 + return; // scope 0 at $DIR/ref_deref_project.rs:+2:2: +2:2 + } + } + diff --git a/src/test/mir-opt/const_prop/ref_deref_project.main.PromoteTemps.diff b/src/test/mir-opt/const_prop/ref_deref_project.main.PromoteTemps.diff new file mode 100644 index 000000000..d25540287 --- /dev/null +++ b/src/test/mir-opt/const_prop/ref_deref_project.main.PromoteTemps.diff @@ -0,0 +1,30 @@ +- // MIR for `main` before PromoteTemps ++ // MIR for `main` after PromoteTemps + + fn main() -> () { + let mut _0: (); // return place in scope 0 at $DIR/ref_deref_project.rs:+0:11: +0:11 + let _1: i32; // in scope 0 at $DIR/ref_deref_project.rs:+1:5: +1:17 + let mut _2: &i32; // in scope 0 at $DIR/ref_deref_project.rs:+1:6: +1:17 + let _3: (i32, i32); // in scope 0 at $DIR/ref_deref_project.rs:+1:8: +1:14 ++ let mut _4: &(i32, i32); // in scope 0 at $DIR/ref_deref_project.rs:+1:6: +1:17 + + bb0: { + StorageLive(_1); // scope 0 at $DIR/ref_deref_project.rs:+1:5: +1:17 + StorageLive(_2); // scope 0 at $DIR/ref_deref_project.rs:+1:6: +1:17 +- StorageLive(_3); // scope 0 at $DIR/ref_deref_project.rs:+1:8: +1:14 +- _3 = (const 4_i32, const 5_i32); // scope 0 at $DIR/ref_deref_project.rs:+1:8: +1:14 +- _2 = &(_3.1: i32); // scope 0 at $DIR/ref_deref_project.rs:+1:6: +1:17 ++ _4 = const main::promoted[0]; // scope 0 at $DIR/ref_deref_project.rs:+1:6: +1:17 ++ // mir::Constant ++ // + span: $DIR/ref_deref_project.rs:5:6: 5:17 ++ // + literal: Const { ty: &(i32, i32), val: Unevaluated(main, [], Some(promoted[0])) } ++ _2 = &((*_4).1: i32); // scope 0 at $DIR/ref_deref_project.rs:+1:6: +1:17 + _1 = (*_2); // scope 0 at $DIR/ref_deref_project.rs:+1:5: +1:17 +- StorageDead(_3); // scope 0 at $DIR/ref_deref_project.rs:+1:17: +1:18 + StorageDead(_2); // scope 0 at $DIR/ref_deref_project.rs:+1:17: +1:18 + StorageDead(_1); // scope 0 at $DIR/ref_deref_project.rs:+1:17: +1:18 + _0 = const (); // scope 0 at $DIR/ref_deref_project.rs:+0:11: +2:2 + return; // scope 0 at $DIR/ref_deref_project.rs:+2:2: +2:2 + } + } + diff --git a/src/test/mir-opt/const_prop/ref_deref_project.rs b/src/test/mir-opt/const_prop/ref_deref_project.rs new file mode 100644 index 000000000..c7cc73651 --- /dev/null +++ b/src/test/mir-opt/const_prop/ref_deref_project.rs @@ -0,0 +1,6 @@ +// EMIT_MIR ref_deref_project.main.PromoteTemps.diff +// EMIT_MIR ref_deref_project.main.ConstProp.diff + +fn main() { + *(&(4, 5).1); // This does not currently propagate (#67862) +} diff --git a/src/test/mir-opt/const_prop/reify_fn_ptr.main.ConstProp.diff b/src/test/mir-opt/const_prop/reify_fn_ptr.main.ConstProp.diff new file mode 100644 index 000000000..237a6f94a --- /dev/null +++ b/src/test/mir-opt/const_prop/reify_fn_ptr.main.ConstProp.diff @@ -0,0 +1,29 @@ +- // MIR for `main` before ConstProp ++ // MIR for `main` after ConstProp + + fn main() -> () { + let mut _0: (); // return place in scope 0 at $DIR/reify_fn_ptr.rs:+0:11: +0:11 + let mut _1: *const fn(); // in scope 0 at $DIR/reify_fn_ptr.rs:+1:13: +1:41 + let mut _2: usize; // in scope 0 at $DIR/reify_fn_ptr.rs:+1:13: +1:26 + let mut _3: fn(); // in scope 0 at $DIR/reify_fn_ptr.rs:+1:13: +1:17 + scope 1 { + } + + bb0: { + StorageLive(_1); // scope 0 at $DIR/reify_fn_ptr.rs:+1:13: +1:41 + StorageLive(_2); // scope 0 at $DIR/reify_fn_ptr.rs:+1:13: +1:26 + StorageLive(_3); // scope 0 at $DIR/reify_fn_ptr.rs:+1:13: +1:17 + _3 = main as fn() (Pointer(ReifyFnPointer)); // scope 0 at $DIR/reify_fn_ptr.rs:+1:13: +1:17 + // mir::Constant + // + span: $DIR/reify_fn_ptr.rs:4:13: 4:17 + // + literal: Const { ty: fn() {main}, val: Value(<ZST>) } + _2 = move _3 as usize (PointerExposeAddress); // scope 0 at $DIR/reify_fn_ptr.rs:+1:13: +1:26 + StorageDead(_3); // scope 0 at $DIR/reify_fn_ptr.rs:+1:25: +1:26 + _1 = move _2 as *const fn() (PointerFromExposedAddress); // scope 0 at $DIR/reify_fn_ptr.rs:+1:13: +1:41 + StorageDead(_2); // scope 0 at $DIR/reify_fn_ptr.rs:+1:40: +1:41 + StorageDead(_1); // scope 0 at $DIR/reify_fn_ptr.rs:+1:41: +1:42 + nop; // scope 0 at $DIR/reify_fn_ptr.rs:+0:11: +2:2 + return; // scope 0 at $DIR/reify_fn_ptr.rs:+2:2: +2:2 + } + } + diff --git a/src/test/mir-opt/const_prop/reify_fn_ptr.rs b/src/test/mir-opt/const_prop/reify_fn_ptr.rs new file mode 100644 index 000000000..bfe2563ad --- /dev/null +++ b/src/test/mir-opt/const_prop/reify_fn_ptr.rs @@ -0,0 +1,5 @@ +// EMIT_MIR reify_fn_ptr.main.ConstProp.diff + +fn main() { + let _ = main as usize as *const fn(); +} diff --git a/src/test/mir-opt/const_prop/repeat.main.ConstProp.32bit.diff b/src/test/mir-opt/const_prop/repeat.main.ConstProp.32bit.diff new file mode 100644 index 000000000..7c4977996 --- /dev/null +++ b/src/test/mir-opt/const_prop/repeat.main.ConstProp.32bit.diff @@ -0,0 +1,43 @@ +- // MIR for `main` before ConstProp ++ // MIR for `main` after ConstProp + + fn main() -> () { + let mut _0: (); // return place in scope 0 at $DIR/repeat.rs:+0:11: +0:11 + let _1: u32; // in scope 0 at $DIR/repeat.rs:+1:9: +1:10 + let mut _2: u32; // in scope 0 at $DIR/repeat.rs:+1:18: +1:28 + let mut _3: [u32; 8]; // in scope 0 at $DIR/repeat.rs:+1:18: +1:25 + let _4: usize; // in scope 0 at $DIR/repeat.rs:+1:26: +1:27 + let mut _5: usize; // in scope 0 at $DIR/repeat.rs:+1:18: +1:28 + let mut _6: bool; // in scope 0 at $DIR/repeat.rs:+1:18: +1:28 + scope 1 { + debug x => _1; // in scope 1 at $DIR/repeat.rs:+1:9: +1:10 + } + + bb0: { + StorageLive(_1); // scope 0 at $DIR/repeat.rs:+1:9: +1:10 + StorageLive(_2); // scope 0 at $DIR/repeat.rs:+1:18: +1:28 + StorageLive(_3); // scope 0 at $DIR/repeat.rs:+1:18: +1:25 + _3 = [const 42_u32; 8]; // scope 0 at $DIR/repeat.rs:+1:18: +1:25 + StorageLive(_4); // scope 0 at $DIR/repeat.rs:+1:26: +1:27 + _4 = const 2_usize; // scope 0 at $DIR/repeat.rs:+1:26: +1:27 + _5 = const 8_usize; // scope 0 at $DIR/repeat.rs:+1:18: +1:28 +- _6 = Lt(_4, _5); // scope 0 at $DIR/repeat.rs:+1:18: +1:28 +- assert(move _6, "index out of bounds: the length is {} but the index is {}", move _5, _4) -> bb1; // scope 0 at $DIR/repeat.rs:+1:18: +1:28 ++ _6 = const true; // scope 0 at $DIR/repeat.rs:+1:18: +1:28 ++ assert(const true, "index out of bounds: the length is {} but the index is {}", const 8_usize, const 2_usize) -> bb1; // scope 0 at $DIR/repeat.rs:+1:18: +1:28 + } + + bb1: { +- _2 = _3[_4]; // scope 0 at $DIR/repeat.rs:+1:18: +1:28 +- _1 = Add(move _2, const 0_u32); // scope 0 at $DIR/repeat.rs:+1:18: +1:32 ++ _2 = const 42_u32; // scope 0 at $DIR/repeat.rs:+1:18: +1:28 ++ _1 = const 42_u32; // scope 0 at $DIR/repeat.rs:+1:18: +1:32 + StorageDead(_2); // scope 0 at $DIR/repeat.rs:+1:31: +1:32 + StorageDead(_4); // scope 0 at $DIR/repeat.rs:+1:32: +1:33 + StorageDead(_3); // scope 0 at $DIR/repeat.rs:+1:32: +1:33 + nop; // scope 0 at $DIR/repeat.rs:+0:11: +2:2 + StorageDead(_1); // scope 0 at $DIR/repeat.rs:+2:1: +2:2 + return; // scope 0 at $DIR/repeat.rs:+2:2: +2:2 + } + } + diff --git a/src/test/mir-opt/const_prop/repeat.main.ConstProp.64bit.diff b/src/test/mir-opt/const_prop/repeat.main.ConstProp.64bit.diff new file mode 100644 index 000000000..7c4977996 --- /dev/null +++ b/src/test/mir-opt/const_prop/repeat.main.ConstProp.64bit.diff @@ -0,0 +1,43 @@ +- // MIR for `main` before ConstProp ++ // MIR for `main` after ConstProp + + fn main() -> () { + let mut _0: (); // return place in scope 0 at $DIR/repeat.rs:+0:11: +0:11 + let _1: u32; // in scope 0 at $DIR/repeat.rs:+1:9: +1:10 + let mut _2: u32; // in scope 0 at $DIR/repeat.rs:+1:18: +1:28 + let mut _3: [u32; 8]; // in scope 0 at $DIR/repeat.rs:+1:18: +1:25 + let _4: usize; // in scope 0 at $DIR/repeat.rs:+1:26: +1:27 + let mut _5: usize; // in scope 0 at $DIR/repeat.rs:+1:18: +1:28 + let mut _6: bool; // in scope 0 at $DIR/repeat.rs:+1:18: +1:28 + scope 1 { + debug x => _1; // in scope 1 at $DIR/repeat.rs:+1:9: +1:10 + } + + bb0: { + StorageLive(_1); // scope 0 at $DIR/repeat.rs:+1:9: +1:10 + StorageLive(_2); // scope 0 at $DIR/repeat.rs:+1:18: +1:28 + StorageLive(_3); // scope 0 at $DIR/repeat.rs:+1:18: +1:25 + _3 = [const 42_u32; 8]; // scope 0 at $DIR/repeat.rs:+1:18: +1:25 + StorageLive(_4); // scope 0 at $DIR/repeat.rs:+1:26: +1:27 + _4 = const 2_usize; // scope 0 at $DIR/repeat.rs:+1:26: +1:27 + _5 = const 8_usize; // scope 0 at $DIR/repeat.rs:+1:18: +1:28 +- _6 = Lt(_4, _5); // scope 0 at $DIR/repeat.rs:+1:18: +1:28 +- assert(move _6, "index out of bounds: the length is {} but the index is {}", move _5, _4) -> bb1; // scope 0 at $DIR/repeat.rs:+1:18: +1:28 ++ _6 = const true; // scope 0 at $DIR/repeat.rs:+1:18: +1:28 ++ assert(const true, "index out of bounds: the length is {} but the index is {}", const 8_usize, const 2_usize) -> bb1; // scope 0 at $DIR/repeat.rs:+1:18: +1:28 + } + + bb1: { +- _2 = _3[_4]; // scope 0 at $DIR/repeat.rs:+1:18: +1:28 +- _1 = Add(move _2, const 0_u32); // scope 0 at $DIR/repeat.rs:+1:18: +1:32 ++ _2 = const 42_u32; // scope 0 at $DIR/repeat.rs:+1:18: +1:28 ++ _1 = const 42_u32; // scope 0 at $DIR/repeat.rs:+1:18: +1:32 + StorageDead(_2); // scope 0 at $DIR/repeat.rs:+1:31: +1:32 + StorageDead(_4); // scope 0 at $DIR/repeat.rs:+1:32: +1:33 + StorageDead(_3); // scope 0 at $DIR/repeat.rs:+1:32: +1:33 + nop; // scope 0 at $DIR/repeat.rs:+0:11: +2:2 + StorageDead(_1); // scope 0 at $DIR/repeat.rs:+2:1: +2:2 + return; // scope 0 at $DIR/repeat.rs:+2:2: +2:2 + } + } + diff --git a/src/test/mir-opt/const_prop/repeat.rs b/src/test/mir-opt/const_prop/repeat.rs new file mode 100644 index 000000000..36d9b9fc6 --- /dev/null +++ b/src/test/mir-opt/const_prop/repeat.rs @@ -0,0 +1,7 @@ +// compile-flags: -O + +// EMIT_MIR_FOR_EACH_BIT_WIDTH +// EMIT_MIR repeat.main.ConstProp.diff +fn main() { + let x: u32 = [42; 8][2] + 0; +} diff --git a/src/test/mir-opt/const_prop/return_place.add.ConstProp.diff b/src/test/mir-opt/const_prop/return_place.add.ConstProp.diff new file mode 100644 index 000000000..5ebd8a520 --- /dev/null +++ b/src/test/mir-opt/const_prop/return_place.add.ConstProp.diff @@ -0,0 +1,21 @@ +- // MIR for `add` before ConstProp ++ // MIR for `add` after ConstProp + + fn add() -> u32 { + let mut _0: u32; // return place in scope 0 at $DIR/return_place.rs:+0:13: +0:16 + let mut _1: (u32, bool); // in scope 0 at $DIR/return_place.rs:+1:5: +1:10 + + bb0: { +- _1 = CheckedAdd(const 2_u32, const 2_u32); // scope 0 at $DIR/return_place.rs:+1:5: +1:10 +- assert(!move (_1.1: bool), "attempt to compute `{} + {}`, which would overflow", const 2_u32, const 2_u32) -> bb1; // scope 0 at $DIR/return_place.rs:+1:5: +1:10 ++ _1 = const (4_u32, false); // scope 0 at $DIR/return_place.rs:+1:5: +1:10 ++ assert(!const false, "attempt to compute `{} + {}`, which would overflow", const 2_u32, const 2_u32) -> bb1; // scope 0 at $DIR/return_place.rs:+1:5: +1:10 + } + + bb1: { +- _0 = move (_1.0: u32); // scope 0 at $DIR/return_place.rs:+1:5: +1:10 ++ _0 = const 4_u32; // scope 0 at $DIR/return_place.rs:+1:5: +1:10 + return; // scope 0 at $DIR/return_place.rs:+2:2: +2:2 + } + } + diff --git a/src/test/mir-opt/const_prop/return_place.add.PreCodegen.before.mir b/src/test/mir-opt/const_prop/return_place.add.PreCodegen.before.mir new file mode 100644 index 000000000..ececd9942 --- /dev/null +++ b/src/test/mir-opt/const_prop/return_place.add.PreCodegen.before.mir @@ -0,0 +1,10 @@ +// MIR for `add` before PreCodegen + +fn add() -> u32 { + let mut _0: u32; // return place in scope 0 at $DIR/return_place.rs:+0:13: +0:16 + + bb0: { + _0 = const 4_u32; // scope 0 at $DIR/return_place.rs:+1:5: +1:10 + return; // scope 0 at $DIR/return_place.rs:+2:2: +2:2 + } +} diff --git a/src/test/mir-opt/const_prop/return_place.rs b/src/test/mir-opt/const_prop/return_place.rs new file mode 100644 index 000000000..06a853696 --- /dev/null +++ b/src/test/mir-opt/const_prop/return_place.rs @@ -0,0 +1,11 @@ +// compile-flags: -C overflow-checks=on + +// EMIT_MIR return_place.add.ConstProp.diff +// EMIT_MIR return_place.add.PreCodegen.before.mir +fn add() -> u32 { + 2 + 2 +} + +fn main() { + add(); +} diff --git a/src/test/mir-opt/const_prop/scalar_literal_propagation.main.ConstProp.diff b/src/test/mir-opt/const_prop/scalar_literal_propagation.main.ConstProp.diff new file mode 100644 index 000000000..5920937e0 --- /dev/null +++ b/src/test/mir-opt/const_prop/scalar_literal_propagation.main.ConstProp.diff @@ -0,0 +1,35 @@ +- // MIR for `main` before ConstProp ++ // MIR for `main` after ConstProp + + fn main() -> () { + let mut _0: (); // return place in scope 0 at $DIR/scalar_literal_propagation.rs:+0:11: +0:11 + let _1: u32; // in scope 0 at $DIR/scalar_literal_propagation.rs:+1:9: +1:10 + let _2: (); // in scope 0 at $DIR/scalar_literal_propagation.rs:+2:5: +2:15 + let mut _3: u32; // in scope 0 at $DIR/scalar_literal_propagation.rs:+2:13: +2:14 + scope 1 { + debug x => _1; // in scope 1 at $DIR/scalar_literal_propagation.rs:+1:9: +1:10 + } + + bb0: { + StorageLive(_1); // scope 0 at $DIR/scalar_literal_propagation.rs:+1:9: +1:10 + _1 = const 1_u32; // scope 0 at $DIR/scalar_literal_propagation.rs:+1:13: +1:14 + StorageLive(_2); // scope 1 at $DIR/scalar_literal_propagation.rs:+2:5: +2:15 + StorageLive(_3); // scope 1 at $DIR/scalar_literal_propagation.rs:+2:13: +2:14 +- _3 = _1; // scope 1 at $DIR/scalar_literal_propagation.rs:+2:13: +2:14 +- _2 = consume(move _3) -> bb1; // scope 1 at $DIR/scalar_literal_propagation.rs:+2:5: +2:15 ++ _3 = const 1_u32; // scope 1 at $DIR/scalar_literal_propagation.rs:+2:13: +2:14 ++ _2 = consume(const 1_u32) -> bb1; // scope 1 at $DIR/scalar_literal_propagation.rs:+2:5: +2:15 + // mir::Constant + // + span: $DIR/scalar_literal_propagation.rs:4:5: 4:12 + // + literal: Const { ty: fn(u32) {consume}, val: Value(<ZST>) } + } + + bb1: { + StorageDead(_3); // scope 1 at $DIR/scalar_literal_propagation.rs:+2:14: +2:15 + StorageDead(_2); // scope 1 at $DIR/scalar_literal_propagation.rs:+2:15: +2:16 + nop; // scope 0 at $DIR/scalar_literal_propagation.rs:+0:11: +3:2 + StorageDead(_1); // scope 0 at $DIR/scalar_literal_propagation.rs:+3:1: +3:2 + return; // scope 0 at $DIR/scalar_literal_propagation.rs:+3:2: +3:2 + } + } + diff --git a/src/test/mir-opt/const_prop/scalar_literal_propagation.rs b/src/test/mir-opt/const_prop/scalar_literal_propagation.rs new file mode 100644 index 000000000..8724e4d57 --- /dev/null +++ b/src/test/mir-opt/const_prop/scalar_literal_propagation.rs @@ -0,0 +1,8 @@ +// EMIT_MIR scalar_literal_propagation.main.ConstProp.diff +fn main() { + let x = 1; + consume(x); +} + +#[inline(never)] +fn consume(_: u32) { } diff --git a/src/test/mir-opt/const_prop/slice_len.main.ConstProp.32bit.diff b/src/test/mir-opt/const_prop/slice_len.main.ConstProp.32bit.diff new file mode 100644 index 000000000..0ebfbca21 --- /dev/null +++ b/src/test/mir-opt/const_prop/slice_len.main.ConstProp.32bit.diff @@ -0,0 +1,53 @@ +- // MIR for `main` before ConstProp ++ // MIR for `main` after ConstProp + + fn main() -> () { + let mut _0: (); // return place in scope 0 at $DIR/slice_len.rs:+0:11: +0:11 + let _1: u32; // in scope 0 at $DIR/slice_len.rs:+1:5: +1:33 + let mut _2: &[u32]; // in scope 0 at $DIR/slice_len.rs:+1:5: +1:30 + let mut _3: &[u32; 3]; // in scope 0 at $DIR/slice_len.rs:+1:6: +1:19 + let _4: &[u32; 3]; // in scope 0 at $DIR/slice_len.rs:+1:6: +1:19 + let _5: [u32; 3]; // in scope 0 at $DIR/slice_len.rs:+1:7: +1:19 + let _6: usize; // in scope 0 at $DIR/slice_len.rs:+1:31: +1:32 + let mut _7: usize; // in scope 0 at $DIR/slice_len.rs:+1:5: +1:33 + let mut _8: bool; // in scope 0 at $DIR/slice_len.rs:+1:5: +1:33 + let mut _9: &[u32; 3]; // in scope 0 at $DIR/slice_len.rs:+1:6: +1:19 + let mut _10: &[u32; 3]; // in scope 0 at $DIR/slice_len.rs:+1:6: +1:19 + + bb0: { + StorageLive(_1); // scope 0 at $DIR/slice_len.rs:+1:5: +1:33 + StorageLive(_2); // scope 0 at $DIR/slice_len.rs:+1:5: +1:30 + StorageLive(_3); // scope 0 at $DIR/slice_len.rs:+1:6: +1:19 + StorageLive(_4); // scope 0 at $DIR/slice_len.rs:+1:6: +1:19 + _9 = const main::promoted[0]; // scope 0 at $DIR/slice_len.rs:+1:6: +1:19 + // mir::Constant + // + span: $DIR/slice_len.rs:5:6: 5:19 + // + literal: Const { ty: &[u32; 3], val: Unevaluated(main, [], Some(promoted[0])) } + _4 = _9; // scope 0 at $DIR/slice_len.rs:+1:6: +1:19 + _3 = _4; // scope 0 at $DIR/slice_len.rs:+1:6: +1:19 + StorageLive(_10); // scope 0 at $DIR/slice_len.rs:+1:6: +1:19 + _10 = _3; // scope 0 at $DIR/slice_len.rs:+1:6: +1:19 + _2 = move _3 as &[u32] (Pointer(Unsize)); // scope 0 at $DIR/slice_len.rs:+1:6: +1:19 + StorageDead(_3); // scope 0 at $DIR/slice_len.rs:+1:18: +1:19 + StorageLive(_6); // scope 0 at $DIR/slice_len.rs:+1:31: +1:32 + _6 = const 1_usize; // scope 0 at $DIR/slice_len.rs:+1:31: +1:32 + _7 = const 3_usize; // scope 0 at $DIR/slice_len.rs:+1:5: +1:33 + StorageDead(_10); // scope 0 at $DIR/slice_len.rs:+1:5: +1:33 +- _8 = Lt(_6, _7); // scope 0 at $DIR/slice_len.rs:+1:5: +1:33 +- assert(move _8, "index out of bounds: the length is {} but the index is {}", move _7, _6) -> bb1; // scope 0 at $DIR/slice_len.rs:+1:5: +1:33 ++ _8 = const true; // scope 0 at $DIR/slice_len.rs:+1:5: +1:33 ++ assert(const true, "index out of bounds: the length is {} but the index is {}", const 3_usize, const 1_usize) -> bb1; // scope 0 at $DIR/slice_len.rs:+1:5: +1:33 + } + + bb1: { +- _1 = (*_2)[_6]; // scope 0 at $DIR/slice_len.rs:+1:5: +1:33 ++ _1 = const 2_u32; // scope 0 at $DIR/slice_len.rs:+1:5: +1:33 + StorageDead(_6); // scope 0 at $DIR/slice_len.rs:+1:33: +1:34 + StorageDead(_4); // scope 0 at $DIR/slice_len.rs:+1:33: +1:34 + StorageDead(_2); // scope 0 at $DIR/slice_len.rs:+1:33: +1:34 + StorageDead(_1); // scope 0 at $DIR/slice_len.rs:+1:33: +1:34 + nop; // scope 0 at $DIR/slice_len.rs:+0:11: +2:2 + return; // scope 0 at $DIR/slice_len.rs:+2:2: +2:2 + } + } + diff --git a/src/test/mir-opt/const_prop/slice_len.main.ConstProp.64bit.diff b/src/test/mir-opt/const_prop/slice_len.main.ConstProp.64bit.diff new file mode 100644 index 000000000..0ebfbca21 --- /dev/null +++ b/src/test/mir-opt/const_prop/slice_len.main.ConstProp.64bit.diff @@ -0,0 +1,53 @@ +- // MIR for `main` before ConstProp ++ // MIR for `main` after ConstProp + + fn main() -> () { + let mut _0: (); // return place in scope 0 at $DIR/slice_len.rs:+0:11: +0:11 + let _1: u32; // in scope 0 at $DIR/slice_len.rs:+1:5: +1:33 + let mut _2: &[u32]; // in scope 0 at $DIR/slice_len.rs:+1:5: +1:30 + let mut _3: &[u32; 3]; // in scope 0 at $DIR/slice_len.rs:+1:6: +1:19 + let _4: &[u32; 3]; // in scope 0 at $DIR/slice_len.rs:+1:6: +1:19 + let _5: [u32; 3]; // in scope 0 at $DIR/slice_len.rs:+1:7: +1:19 + let _6: usize; // in scope 0 at $DIR/slice_len.rs:+1:31: +1:32 + let mut _7: usize; // in scope 0 at $DIR/slice_len.rs:+1:5: +1:33 + let mut _8: bool; // in scope 0 at $DIR/slice_len.rs:+1:5: +1:33 + let mut _9: &[u32; 3]; // in scope 0 at $DIR/slice_len.rs:+1:6: +1:19 + let mut _10: &[u32; 3]; // in scope 0 at $DIR/slice_len.rs:+1:6: +1:19 + + bb0: { + StorageLive(_1); // scope 0 at $DIR/slice_len.rs:+1:5: +1:33 + StorageLive(_2); // scope 0 at $DIR/slice_len.rs:+1:5: +1:30 + StorageLive(_3); // scope 0 at $DIR/slice_len.rs:+1:6: +1:19 + StorageLive(_4); // scope 0 at $DIR/slice_len.rs:+1:6: +1:19 + _9 = const main::promoted[0]; // scope 0 at $DIR/slice_len.rs:+1:6: +1:19 + // mir::Constant + // + span: $DIR/slice_len.rs:5:6: 5:19 + // + literal: Const { ty: &[u32; 3], val: Unevaluated(main, [], Some(promoted[0])) } + _4 = _9; // scope 0 at $DIR/slice_len.rs:+1:6: +1:19 + _3 = _4; // scope 0 at $DIR/slice_len.rs:+1:6: +1:19 + StorageLive(_10); // scope 0 at $DIR/slice_len.rs:+1:6: +1:19 + _10 = _3; // scope 0 at $DIR/slice_len.rs:+1:6: +1:19 + _2 = move _3 as &[u32] (Pointer(Unsize)); // scope 0 at $DIR/slice_len.rs:+1:6: +1:19 + StorageDead(_3); // scope 0 at $DIR/slice_len.rs:+1:18: +1:19 + StorageLive(_6); // scope 0 at $DIR/slice_len.rs:+1:31: +1:32 + _6 = const 1_usize; // scope 0 at $DIR/slice_len.rs:+1:31: +1:32 + _7 = const 3_usize; // scope 0 at $DIR/slice_len.rs:+1:5: +1:33 + StorageDead(_10); // scope 0 at $DIR/slice_len.rs:+1:5: +1:33 +- _8 = Lt(_6, _7); // scope 0 at $DIR/slice_len.rs:+1:5: +1:33 +- assert(move _8, "index out of bounds: the length is {} but the index is {}", move _7, _6) -> bb1; // scope 0 at $DIR/slice_len.rs:+1:5: +1:33 ++ _8 = const true; // scope 0 at $DIR/slice_len.rs:+1:5: +1:33 ++ assert(const true, "index out of bounds: the length is {} but the index is {}", const 3_usize, const 1_usize) -> bb1; // scope 0 at $DIR/slice_len.rs:+1:5: +1:33 + } + + bb1: { +- _1 = (*_2)[_6]; // scope 0 at $DIR/slice_len.rs:+1:5: +1:33 ++ _1 = const 2_u32; // scope 0 at $DIR/slice_len.rs:+1:5: +1:33 + StorageDead(_6); // scope 0 at $DIR/slice_len.rs:+1:33: +1:34 + StorageDead(_4); // scope 0 at $DIR/slice_len.rs:+1:33: +1:34 + StorageDead(_2); // scope 0 at $DIR/slice_len.rs:+1:33: +1:34 + StorageDead(_1); // scope 0 at $DIR/slice_len.rs:+1:33: +1:34 + nop; // scope 0 at $DIR/slice_len.rs:+0:11: +2:2 + return; // scope 0 at $DIR/slice_len.rs:+2:2: +2:2 + } + } + diff --git a/src/test/mir-opt/const_prop/slice_len.rs b/src/test/mir-opt/const_prop/slice_len.rs new file mode 100644 index 000000000..fa9eafa8b --- /dev/null +++ b/src/test/mir-opt/const_prop/slice_len.rs @@ -0,0 +1,6 @@ +// EMIT_MIR_FOR_EACH_BIT_WIDTH + +// EMIT_MIR slice_len.main.ConstProp.diff +fn main() { + (&[1u32, 2, 3] as &[u32])[1]; +} diff --git a/src/test/mir-opt/const_prop/switch_int.main.ConstProp.diff b/src/test/mir-opt/const_prop/switch_int.main.ConstProp.diff new file mode 100644 index 000000000..9d7c2784d --- /dev/null +++ b/src/test/mir-opt/const_prop/switch_int.main.ConstProp.diff @@ -0,0 +1,34 @@ +- // MIR for `main` before ConstProp ++ // MIR for `main` after ConstProp + + fn main() -> () { + let mut _0: (); // return place in scope 0 at $DIR/switch_int.rs:+0:11: +0:11 + let mut _1: i32; // in scope 0 at $DIR/switch_int.rs:+1:11: +1:12 + + bb0: { + StorageLive(_1); // scope 0 at $DIR/switch_int.rs:+1:11: +1:12 + _1 = const 1_i32; // scope 0 at $DIR/switch_int.rs:+1:11: +1:12 +- switchInt(_1) -> [1_i32: bb2, otherwise: bb1]; // scope 0 at $DIR/switch_int.rs:+1:5: +1:12 ++ switchInt(const 1_i32) -> [1_i32: bb2, otherwise: bb1]; // scope 0 at $DIR/switch_int.rs:+1:5: +1:12 + } + + bb1: { + _0 = foo(const -1_i32) -> bb3; // scope 0 at $DIR/switch_int.rs:+3:14: +3:21 + // mir::Constant + // + span: $DIR/switch_int.rs:9:14: 9:17 + // + literal: Const { ty: fn(i32) {foo}, val: Value(<ZST>) } + } + + bb2: { + _0 = foo(const 0_i32) -> bb3; // scope 0 at $DIR/switch_int.rs:+2:14: +2:20 + // mir::Constant + // + span: $DIR/switch_int.rs:8:14: 8:17 + // + literal: Const { ty: fn(i32) {foo}, val: Value(<ZST>) } + } + + bb3: { + StorageDead(_1); // scope 0 at $DIR/switch_int.rs:+5:1: +5:2 + return; // scope 0 at $DIR/switch_int.rs:+5:2: +5:2 + } + } + diff --git a/src/test/mir-opt/const_prop/switch_int.main.SimplifyConstCondition-after-const-prop.diff b/src/test/mir-opt/const_prop/switch_int.main.SimplifyConstCondition-after-const-prop.diff new file mode 100644 index 000000000..74f9eafe4 --- /dev/null +++ b/src/test/mir-opt/const_prop/switch_int.main.SimplifyConstCondition-after-const-prop.diff @@ -0,0 +1,34 @@ +- // MIR for `main` before SimplifyConstCondition-after-const-prop ++ // MIR for `main` after SimplifyConstCondition-after-const-prop + + fn main() -> () { + let mut _0: (); // return place in scope 0 at $DIR/switch_int.rs:+0:11: +0:11 + let mut _1: i32; // in scope 0 at $DIR/switch_int.rs:+1:11: +1:12 + + bb0: { + StorageLive(_1); // scope 0 at $DIR/switch_int.rs:+1:11: +1:12 + _1 = const 1_i32; // scope 0 at $DIR/switch_int.rs:+1:11: +1:12 +- switchInt(const 1_i32) -> [1_i32: bb2, otherwise: bb1]; // scope 0 at $DIR/switch_int.rs:+1:5: +1:12 ++ goto -> bb2; // scope 0 at $DIR/switch_int.rs:+1:5: +1:12 + } + + bb1: { + _0 = foo(const -1_i32) -> bb3; // scope 0 at $DIR/switch_int.rs:+3:14: +3:21 + // mir::Constant + // + span: $DIR/switch_int.rs:9:14: 9:17 + // + literal: Const { ty: fn(i32) {foo}, val: Value(<ZST>) } + } + + bb2: { + _0 = foo(const 0_i32) -> bb3; // scope 0 at $DIR/switch_int.rs:+2:14: +2:20 + // mir::Constant + // + span: $DIR/switch_int.rs:8:14: 8:17 + // + literal: Const { ty: fn(i32) {foo}, val: Value(<ZST>) } + } + + bb3: { + StorageDead(_1); // scope 0 at $DIR/switch_int.rs:+5:1: +5:2 + return; // scope 0 at $DIR/switch_int.rs:+5:2: +5:2 + } + } + diff --git a/src/test/mir-opt/const_prop/switch_int.rs b/src/test/mir-opt/const_prop/switch_int.rs new file mode 100644 index 000000000..d7319eca1 --- /dev/null +++ b/src/test/mir-opt/const_prop/switch_int.rs @@ -0,0 +1,11 @@ +#[inline(never)] +fn foo(_: i32) { } + +// EMIT_MIR switch_int.main.ConstProp.diff +// EMIT_MIR switch_int.main.SimplifyConstCondition-after-const-prop.diff +fn main() { + match 1 { + 1 => foo(0), + _ => foo(-1), + } +} diff --git a/src/test/mir-opt/const_prop/tuple_literal_propagation.main.ConstProp.diff b/src/test/mir-opt/const_prop/tuple_literal_propagation.main.ConstProp.diff new file mode 100644 index 000000000..a0603c60d --- /dev/null +++ b/src/test/mir-opt/const_prop/tuple_literal_propagation.main.ConstProp.diff @@ -0,0 +1,36 @@ +- // MIR for `main` before ConstProp ++ // MIR for `main` after ConstProp + + fn main() -> () { + let mut _0: (); // return place in scope 0 at $DIR/tuple_literal_propagation.rs:+0:11: +0:11 + let _1: (u32, u32); // in scope 0 at $DIR/tuple_literal_propagation.rs:+1:9: +1:10 + let _2: (); // in scope 0 at $DIR/tuple_literal_propagation.rs:+3:5: +3:15 + let mut _3: (u32, u32); // in scope 0 at $DIR/tuple_literal_propagation.rs:+3:13: +3:14 + scope 1 { + debug x => _1; // in scope 1 at $DIR/tuple_literal_propagation.rs:+1:9: +1:10 + } + + bb0: { + StorageLive(_1); // scope 0 at $DIR/tuple_literal_propagation.rs:+1:9: +1:10 + Deinit(_1); // scope 0 at $DIR/tuple_literal_propagation.rs:+1:13: +1:19 + (_1.0: u32) = const 1_u32; // scope 0 at $DIR/tuple_literal_propagation.rs:+1:13: +1:19 + (_1.1: u32) = const 2_u32; // scope 0 at $DIR/tuple_literal_propagation.rs:+1:13: +1:19 + StorageLive(_2); // scope 1 at $DIR/tuple_literal_propagation.rs:+3:5: +3:15 + StorageLive(_3); // scope 1 at $DIR/tuple_literal_propagation.rs:+3:13: +3:14 +- _3 = _1; // scope 1 at $DIR/tuple_literal_propagation.rs:+3:13: +3:14 ++ _3 = const (1_u32, 2_u32); // scope 1 at $DIR/tuple_literal_propagation.rs:+3:13: +3:14 + _2 = consume(move _3) -> bb1; // scope 1 at $DIR/tuple_literal_propagation.rs:+3:5: +3:15 + // mir::Constant + // + span: $DIR/tuple_literal_propagation.rs:5:5: 5:12 + // + literal: Const { ty: fn((u32, u32)) {consume}, val: Value(<ZST>) } + } + + bb1: { + StorageDead(_3); // scope 1 at $DIR/tuple_literal_propagation.rs:+3:14: +3:15 + StorageDead(_2); // scope 1 at $DIR/tuple_literal_propagation.rs:+3:15: +3:16 + nop; // scope 0 at $DIR/tuple_literal_propagation.rs:+0:11: +4:2 + StorageDead(_1); // scope 0 at $DIR/tuple_literal_propagation.rs:+4:1: +4:2 + return; // scope 0 at $DIR/tuple_literal_propagation.rs:+4:2: +4:2 + } + } + diff --git a/src/test/mir-opt/const_prop/tuple_literal_propagation.rs b/src/test/mir-opt/const_prop/tuple_literal_propagation.rs new file mode 100644 index 000000000..e644baec4 --- /dev/null +++ b/src/test/mir-opt/const_prop/tuple_literal_propagation.rs @@ -0,0 +1,9 @@ +// EMIT_MIR tuple_literal_propagation.main.ConstProp.diff +fn main() { + let x = (1, 2); + + consume(x); +} + +#[inline(never)] +fn consume(_: (u32, u32)) { } |