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Lower unchecked_{div, rem} to BinOp::{Div, Rem}

This commit is contained in:
Scott McMurray 2023-05-31 23:58:20 -07:00
parent 9af3865dec
commit 32cc106af3
23 changed files with 123 additions and 52 deletions
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51
compiler/rustc_mir_transform/src/lower_intrinsics.rs
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@ -82,30 +82,35 @@ impl<'tcx> MirPass<'tcx> for LowerIntrinsics {
drop(args);
terminator.kind = TerminatorKind::Goto { target };
}
sym::wrapping_add | sym::wrapping_sub | sym::wrapping_mul => {
if let Some(target) = *target {
let lhs;
let rhs;
{
let mut args = args.drain(..);
lhs = args.next().unwrap();
rhs = args.next().unwrap();
}
let bin_op = match intrinsic_name {
sym::wrapping_add => BinOp::Add,
sym::wrapping_sub => BinOp::Sub,
sym::wrapping_mul => BinOp::Mul,
_ => bug!("unexpected intrinsic"),
};
block.statements.push(Statement {
source_info: terminator.source_info,
kind: StatementKind::Assign(Box::new((
*destination,
Rvalue::BinaryOp(bin_op, Box::new((lhs, rhs))),
))),
});
terminator.kind = TerminatorKind::Goto { target };
sym::wrapping_add
| sym::wrapping_sub
| sym::wrapping_mul
| sym::unchecked_div
| sym::unchecked_rem => {
let target = target.unwrap();
let lhs;
let rhs;
{
let mut args = args.drain(..);
lhs = args.next().unwrap();
rhs = args.next().unwrap();
}
let bin_op = match intrinsic_name {
sym::wrapping_add => BinOp::Add,
sym::wrapping_sub => BinOp::Sub,
sym::wrapping_mul => BinOp::Mul,
sym::unchecked_div => BinOp::Div,
sym::unchecked_rem => BinOp::Rem,
_ => bug!("unexpected intrinsic"),
};
block.statements.push(Statement {
source_info: terminator.source_info,
kind: StatementKind::Assign(Box::new((
*destination,
Rvalue::BinaryOp(bin_op, Box::new((lhs, rhs))),
))),
});
terminator.kind = TerminatorKind::Goto { target };
}
sym::add_with_overflow | sym::sub_with_overflow | sym::mul_with_overflow => {
if let Some(target) = *target {

2
tests/mir-opt/lower_intrinsics.align_of.LowerIntrinsics.diff
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@ -7,7 +7,7 @@
bb0: {
- _0 = std::intrinsics::min_align_of::<T>() -> [return: bb1, unwind unreachable]; // scope 0 at $DIR/lower_intrinsics.rs:+1:5: +1:42
- // mir::Constant
- // + span: $DIR/lower_intrinsics.rs:21:5: 21:40
- // + span: $DIR/lower_intrinsics.rs:27:5: 27:40
- // + literal: Const { ty: extern "rust-intrinsic" fn() -> usize {std::intrinsics::min_align_of::<T>}, val: Value(<ZST>) }
+ _0 = AlignOf(T); // scope 0 at $DIR/lower_intrinsics.rs:+1:5: +1:42
+ goto -> bb1; // scope 0 at $DIR/lower_intrinsics.rs:+1:5: +1:42

2
tests/mir-opt/lower_intrinsics.assume.LowerIntrinsics.diff
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@ -11,7 +11,7 @@
StorageLive(_1); // scope 1 at $DIR/lower_intrinsics.rs:+2:9: +2:38
- _1 = std::intrinsics::assume(const true) -> [return: bb1, unwind unreachable]; // scope 1 at $DIR/lower_intrinsics.rs:+2:9: +2:38
- // mir::Constant
- // + span: $DIR/lower_intrinsics.rs:106:9: 106:32
- // + span: $DIR/lower_intrinsics.rs:112:9: 112:32
- // + literal: Const { ty: unsafe extern "rust-intrinsic" fn(bool) {std::intrinsics::assume}, val: Value(<ZST>) }
+ assume(const true); // scope 1 at $DIR/lower_intrinsics.rs:+2:9: +2:38
+ goto -> bb1; // scope 1 at $DIR/lower_intrinsics.rs:+2:9: +2:38

14
tests/mir-opt/lower_intrinsics.discriminant.LowerIntrinsics.diff
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@ -31,7 +31,7 @@
_3 = &(*_4); // scope 0 at $DIR/lower_intrinsics.rs:+1:42: +1:44
- _2 = discriminant_value::<T>(move _3) -> [return: bb1, unwind unreachable]; // scope 0 at $DIR/lower_intrinsics.rs:+1:5: +1:45
- // mir::Constant
- // + span: $DIR/lower_intrinsics.rs:82:5: 82:41
- // + span: $DIR/lower_intrinsics.rs:88:5: 88:41
- // + literal: Const { ty: for<'a> extern "rust-intrinsic" fn(&'a T) -> <T as DiscriminantKind>::Discriminant {discriminant_value::<T>}, val: Value(<ZST>) }
+ _2 = discriminant((*_3)); // scope 0 at $DIR/lower_intrinsics.rs:+1:5: +1:45
+ goto -> bb1; // scope 0 at $DIR/lower_intrinsics.rs:+1:5: +1:45
@ -46,13 +46,13 @@
StorageLive(_7); // scope 0 at $DIR/lower_intrinsics.rs:+2:42: +2:44
_19 = const _; // scope 0 at $DIR/lower_intrinsics.rs:+2:42: +2:44
// mir::Constant
// + span: $DIR/lower_intrinsics.rs:83:42: 83:44
// + span: $DIR/lower_intrinsics.rs:89:42: 89:44
// + literal: Const { ty: &i32, val: Unevaluated(discriminant, [T], Some(promoted[2])) }
_7 = &(*_19); // scope 0 at $DIR/lower_intrinsics.rs:+2:42: +2:44
_6 = &(*_7); // scope 0 at $DIR/lower_intrinsics.rs:+2:42: +2:44
- _5 = discriminant_value::<i32>(move _6) -> [return: bb2, unwind unreachable]; // scope 0 at $DIR/lower_intrinsics.rs:+2:5: +2:45
- // mir::Constant
- // + span: $DIR/lower_intrinsics.rs:83:5: 83:41
- // + span: $DIR/lower_intrinsics.rs:89:5: 89:41
- // + literal: Const { ty: for<'a> extern "rust-intrinsic" fn(&'a i32) -> <i32 as DiscriminantKind>::Discriminant {discriminant_value::<i32>}, val: Value(<ZST>) }
+ _5 = discriminant((*_6)); // scope 0 at $DIR/lower_intrinsics.rs:+2:5: +2:45
+ goto -> bb2; // scope 0 at $DIR/lower_intrinsics.rs:+2:5: +2:45
@ -67,13 +67,13 @@
StorageLive(_11); // scope 0 at $DIR/lower_intrinsics.rs:+3:42: +3:45
_18 = const _; // scope 0 at $DIR/lower_intrinsics.rs:+3:42: +3:45
// mir::Constant
// + span: $DIR/lower_intrinsics.rs:84:42: 84:45
// + span: $DIR/lower_intrinsics.rs:90:42: 90:45
// + literal: Const { ty: &(), val: Unevaluated(discriminant, [T], Some(promoted[1])) }
_11 = &(*_18); // scope 0 at $DIR/lower_intrinsics.rs:+3:42: +3:45
_10 = &(*_11); // scope 0 at $DIR/lower_intrinsics.rs:+3:42: +3:45
- _9 = discriminant_value::<()>(move _10) -> [return: bb3, unwind unreachable]; // scope 0 at $DIR/lower_intrinsics.rs:+3:5: +3:46
- // mir::Constant
- // + span: $DIR/lower_intrinsics.rs:84:5: 84:41
- // + span: $DIR/lower_intrinsics.rs:90:5: 90:41
- // + literal: Const { ty: for<'a> extern "rust-intrinsic" fn(&'a ()) -> <() as DiscriminantKind>::Discriminant {discriminant_value::<()>}, val: Value(<ZST>) }
+ _9 = discriminant((*_10)); // scope 0 at $DIR/lower_intrinsics.rs:+3:5: +3:46
+ goto -> bb3; // scope 0 at $DIR/lower_intrinsics.rs:+3:5: +3:46
@ -88,13 +88,13 @@
StorageLive(_15); // scope 0 at $DIR/lower_intrinsics.rs:+4:42: +4:47
_17 = const _; // scope 0 at $DIR/lower_intrinsics.rs:+4:42: +4:47
// mir::Constant
// + span: $DIR/lower_intrinsics.rs:85:42: 85:47
// + span: $DIR/lower_intrinsics.rs:91:42: 91:47
// + literal: Const { ty: &E, val: Unevaluated(discriminant, [T], Some(promoted[0])) }
_15 = &(*_17); // scope 0 at $DIR/lower_intrinsics.rs:+4:42: +4:47
_14 = &(*_15); // scope 0 at $DIR/lower_intrinsics.rs:+4:42: +4:47
- _13 = discriminant_value::<E>(move _14) -> [return: bb4, unwind unreachable]; // scope 0 at $DIR/lower_intrinsics.rs:+4:5: +4:48
- // mir::Constant
- // + span: $DIR/lower_intrinsics.rs:85:5: 85:41
- // + span: $DIR/lower_intrinsics.rs:91:5: 91:41
- // + literal: Const { ty: for<'a> extern "rust-intrinsic" fn(&'a E) -> <E as DiscriminantKind>::Discriminant {discriminant_value::<E>}, val: Value(<ZST>) }
+ _13 = discriminant((*_14)); // scope 0 at $DIR/lower_intrinsics.rs:+4:5: +4:48
+ goto -> bb4; // scope 0 at $DIR/lower_intrinsics.rs:+4:5: +4:48

2
tests/mir-opt/lower_intrinsics.f_copy_nonoverlapping.LowerIntrinsics.diff
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@ -49,7 +49,7 @@
StorageDead(_9); // scope 3 at $DIR/lower_intrinsics.rs:+4:90: +4:91
- _3 = copy_nonoverlapping::<i32>(move _4, move _8, const 0_usize) -> [return: bb1, unwind unreachable]; // scope 3 at $DIR/lower_intrinsics.rs:+4:9: +4:95
- // mir::Constant
- // + span: $DIR/lower_intrinsics.rs:99:9: 99:28
- // + span: $DIR/lower_intrinsics.rs:105:9: 105:28
- // + literal: Const { ty: unsafe extern "rust-intrinsic" fn(*const i32, *mut i32, usize) {copy_nonoverlapping::<i32>}, val: Value(<ZST>) }
+ copy_nonoverlapping(dst = move _8, src = move _4, count = const 0_usize); // scope 3 at $DIR/lower_intrinsics.rs:+4:9: +4:95
+ goto -> bb1; // scope 3 at $DIR/lower_intrinsics.rs:+4:9: +4:95

2
tests/mir-opt/lower_intrinsics.forget.LowerIntrinsics.diff
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@ -11,7 +11,7 @@
_2 = move _1; // scope 0 at $DIR/lower_intrinsics.rs:+1:30: +1:31
- _0 = std::intrinsics::forget::<T>(move _2) -> [return: bb1, unwind unreachable]; // scope 0 at $DIR/lower_intrinsics.rs:+1:5: +1:32
- // mir::Constant
- // + span: $DIR/lower_intrinsics.rs:26:5: 26:29
- // + span: $DIR/lower_intrinsics.rs:32:5: 32:29
- // + literal: Const { ty: extern "rust-intrinsic" fn(T) {std::intrinsics::forget::<T>}, val: Value(<ZST>) }
+ _0 = const (); // scope 0 at $DIR/lower_intrinsics.rs:+1:5: +1:32
+ goto -> bb1; // scope 0 at $DIR/lower_intrinsics.rs:+1:5: +1:32

2
tests/mir-opt/lower_intrinsics.non_const.LowerIntrinsics.diff
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@ -13,7 +13,7 @@
StorageLive(_1); // scope 0 at $DIR/lower_intrinsics.rs:+2:9: +2:18
_1 = std::intrinsics::size_of::<T>; // scope 0 at $DIR/lower_intrinsics.rs:+2:21: +2:51
// mir::Constant
// + span: $DIR/lower_intrinsics.rs:37:21: 37:51
// + span: $DIR/lower_intrinsics.rs:43:21: 43:51
// + literal: Const { ty: extern "rust-intrinsic" fn() -> usize {std::intrinsics::size_of::<T>}, val: Value(<ZST>) }
StorageLive(_2); // scope 1 at $DIR/lower_intrinsics.rs:+3:5: +3:14
_2 = _1; // scope 1 at $DIR/lower_intrinsics.rs:+3:5: +3:14

4
tests/mir-opt/lower_intrinsics.option_payload.LowerIntrinsics.diff
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@ -24,7 +24,7 @@
_4 = &raw const (*_1); // scope 1 at $DIR/lower_intrinsics.rs:+2:55: +2:56
- _3 = option_payload_ptr::<usize>(move _4) -> [return: bb1, unwind unreachable]; // scope 1 at $DIR/lower_intrinsics.rs:+2:18: +2:57
- // mir::Constant
- // + span: $DIR/lower_intrinsics.rs:137:18: 137:54
- // + span: $DIR/lower_intrinsics.rs:143:18: 143:54
- // + literal: Const { ty: unsafe extern "rust-intrinsic" fn(*const Option<usize>) -> *const usize {option_payload_ptr::<usize>}, val: Value(<ZST>) }
+ _3 = &raw const (((*_4) as Some).0: usize); // scope 1 at $DIR/lower_intrinsics.rs:+2:18: +2:57
+ goto -> bb1; // scope 1 at $DIR/lower_intrinsics.rs:+2:18: +2:57
@ -37,7 +37,7 @@
_6 = &raw const (*_2); // scope 2 at $DIR/lower_intrinsics.rs:+3:55: +3:56
- _5 = option_payload_ptr::<String>(move _6) -> [return: bb2, unwind unreachable]; // scope 2 at $DIR/lower_intrinsics.rs:+3:18: +3:57
- // mir::Constant
- // + span: $DIR/lower_intrinsics.rs:138:18: 138:54
- // + span: $DIR/lower_intrinsics.rs:144:18: 144:54
- // + literal: Const { ty: unsafe extern "rust-intrinsic" fn(*const Option<String>) -> *const String {option_payload_ptr::<String>}, val: Value(<ZST>) }
+ _5 = &raw const (((*_6) as Some).0: std::string::String); // scope 2 at $DIR/lower_intrinsics.rs:+3:18: +3:57
+ goto -> bb2; // scope 2 at $DIR/lower_intrinsics.rs:+3:18: +3:57

2
tests/mir-opt/lower_intrinsics.ptr_offset.LowerIntrinsics.diff
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@ -15,7 +15,7 @@
_4 = _2; // scope 0 at $DIR/lower_intrinsics.rs:+1:33: +1:34
- _0 = offset::<*const i32, isize>(move _3, move _4) -> [return: bb1, unwind unreachable]; // scope 0 at $DIR/lower_intrinsics.rs:+1:5: +1:35
- // mir::Constant
- // + span: $DIR/lower_intrinsics.rs:144:5: 144:29
- // + span: $DIR/lower_intrinsics.rs:150:5: 150:29
- // + literal: Const { ty: unsafe extern "rust-intrinsic" fn(*const i32, isize) -> *const i32 {offset::<*const i32, isize>}, val: Value(<ZST>) }
+ _0 = Offset(move _3, move _4); // scope 0 at $DIR/lower_intrinsics.rs:+1:5: +1:35
+ goto -> bb1; // scope 0 at $DIR/lower_intrinsics.rs:+1:5: +1:35

2
tests/mir-opt/lower_intrinsics.read_via_copy_primitive.LowerIntrinsics.diff
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@ -13,7 +13,7 @@
_2 = &raw const (*_1); // scope 1 at $DIR/lower_intrinsics.rs:+1:46: +1:47
- _0 = read_via_copy::<i32>(move _2) -> [return: bb1, unwind unreachable]; // scope 1 at $DIR/lower_intrinsics.rs:+1:14: +1:48
- // mir::Constant
- // + span: $DIR/lower_intrinsics.rs:119:14: 119:45
- // + span: $DIR/lower_intrinsics.rs:125:14: 125:45
- // + literal: Const { ty: unsafe extern "rust-intrinsic" fn(*const i32) -> i32 {read_via_copy::<i32>}, val: Value(<ZST>) }
+ _0 = (*_2); // scope 1 at $DIR/lower_intrinsics.rs:+1:14: +1:48
+ goto -> bb1; // scope 1 at $DIR/lower_intrinsics.rs:+1:14: +1:48

2
tests/mir-opt/lower_intrinsics.read_via_copy_uninhabited.LowerIntrinsics.diff
View File

@ -13,7 +13,7 @@
_2 = &raw const (*_1); // scope 1 at $DIR/lower_intrinsics.rs:+1:46: +1:47
- _0 = read_via_copy::<Never>(move _2) -> unwind unreachable; // scope 1 at $DIR/lower_intrinsics.rs:+1:14: +1:48
- // mir::Constant
- // + span: $DIR/lower_intrinsics.rs:124:14: 124:45
- // + span: $DIR/lower_intrinsics.rs:130:14: 130:45
- // + literal: Const { ty: unsafe extern "rust-intrinsic" fn(*const Never) -> Never {read_via_copy::<Never>}, val: Value(<ZST>) }
+ unreachable; // scope 1 at $DIR/lower_intrinsics.rs:+1:14: +1:48
}

6
tests/mir-opt/lower_intrinsics.rs
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@ -11,6 +11,12 @@ pub fn wrapping(a: i32, b: i32) {
let _z = core::intrinsics::wrapping_mul(a, b);
}
// EMIT_MIR lower_intrinsics.unchecked.LowerIntrinsics.diff
pub unsafe fn unchecked(a: i32, b: i32) {
let _x = core::intrinsics::unchecked_div(a, b);
let _y = core::intrinsics::unchecked_rem(a, b);
}
// EMIT_MIR lower_intrinsics.size_of.LowerIntrinsics.diff
pub fn size_of<T>() -> usize {
core::intrinsics::size_of::<T>()

2
tests/mir-opt/lower_intrinsics.size_of.LowerIntrinsics.diff
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@ -7,7 +7,7 @@
bb0: {
- _0 = std::intrinsics::size_of::<T>() -> [return: bb1, unwind unreachable]; // scope 0 at $DIR/lower_intrinsics.rs:+1:5: +1:37
- // mir::Constant
- // + span: $DIR/lower_intrinsics.rs:16:5: 16:35
- // + span: $DIR/lower_intrinsics.rs:22:5: 22:35
- // + literal: Const { ty: extern "rust-intrinsic" fn() -> usize {std::intrinsics::size_of::<T>}, val: Value(<ZST>) }
+ _0 = SizeOf(T); // scope 0 at $DIR/lower_intrinsics.rs:+1:5: +1:37
+ goto -> bb1; // scope 0 at $DIR/lower_intrinsics.rs:+1:5: +1:37

2
tests/mir-opt/lower_intrinsics.transmute_inhabited.LowerIntrinsics.diff
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@ -13,7 +13,7 @@
_2 = _1; // scope 1 at $DIR/lower_intrinsics.rs:+1:34: +1:35
- _0 = transmute::<std::cmp::Ordering, i8>(move _2) -> [return: bb1, unwind unreachable]; // scope 1 at $DIR/lower_intrinsics.rs:+1:14: +1:36
- // mir::Constant
- // + span: $DIR/lower_intrinsics.rs:43:14: 43:33
- // + span: $DIR/lower_intrinsics.rs:49:14: 49:33
- // + literal: Const { ty: unsafe extern "rust-intrinsic" fn(std::cmp::Ordering) -> i8 {transmute::<std::cmp::Ordering, i8>}, val: Value(<ZST>) }
+ _0 = move _2 as i8 (Transmute); // scope 1 at $DIR/lower_intrinsics.rs:+1:14: +1:36
+ goto -> bb1; // scope 1 at $DIR/lower_intrinsics.rs:+1:14: +1:36

2
tests/mir-opt/lower_intrinsics.transmute_ref_dst.LowerIntrinsics.diff
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@ -13,7 +13,7 @@
_2 = _1; // scope 1 at $DIR/lower_intrinsics.rs:+1:34: +1:35
- _0 = transmute::<&T, *const T>(move _2) -> [return: bb1, unwind unreachable]; // scope 1 at $DIR/lower_intrinsics.rs:+1:14: +1:36
- // mir::Constant
- // + span: $DIR/lower_intrinsics.rs:53:14: 53:33
- // + span: $DIR/lower_intrinsics.rs:59:14: 59:33
- // + literal: Const { ty: unsafe extern "rust-intrinsic" fn(&T) -> *const T {transmute::<&T, *const T>}, val: Value(<ZST>) }
+ _0 = move _2 as *const T (Transmute); // scope 1 at $DIR/lower_intrinsics.rs:+1:14: +1:36
+ goto -> bb1; // scope 1 at $DIR/lower_intrinsics.rs:+1:14: +1:36

2
tests/mir-opt/lower_intrinsics.transmute_to_box_uninhabited.LowerIntrinsics.diff
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@ -12,7 +12,7 @@
StorageLive(_1); // scope 0 at $DIR/lower_intrinsics.rs:+1:9: +1:10
- _1 = transmute::<usize, Box<Never>>(const 1_usize) -> [return: bb1, unwind unreachable]; // scope 0 at $DIR/lower_intrinsics.rs:+1:25: +1:52
- // mir::Constant
- // + span: $DIR/lower_intrinsics.rs:70:25: 70:44
- // + span: $DIR/lower_intrinsics.rs:76:25: 76:44
- // + literal: Const { ty: unsafe extern "rust-intrinsic" fn(usize) -> Box<Never> {transmute::<usize, Box<Never>>}, val: Value(<ZST>) }
+ _1 = const 1_usize as std::boxed::Box<Never> (Transmute); // scope 0 at $DIR/lower_intrinsics.rs:+1:25: +1:52
+ goto -> bb1; // scope 0 at $DIR/lower_intrinsics.rs:+1:25: +1:52

2
tests/mir-opt/lower_intrinsics.transmute_to_mut_uninhabited.LowerIntrinsics.diff
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@ -12,7 +12,7 @@
StorageLive(_1); // scope 0 at $DIR/lower_intrinsics.rs:+1:9: +1:10
- _1 = transmute::<usize, &mut Never>(const 1_usize) -> [return: bb1, unwind unreachable]; // scope 0 at $DIR/lower_intrinsics.rs:+1:25: +1:52
- // mir::Constant
- // + span: $DIR/lower_intrinsics.rs:64:25: 64:44
- // + span: $DIR/lower_intrinsics.rs:70:25: 70:44
- // + literal: Const { ty: unsafe extern "rust-intrinsic" fn(usize) -> &mut Never {transmute::<usize, &mut Never>}, val: Value(<ZST>) }
+ _1 = const 1_usize as &mut Never (Transmute); // scope 0 at $DIR/lower_intrinsics.rs:+1:25: +1:52
+ goto -> bb1; // scope 0 at $DIR/lower_intrinsics.rs:+1:25: +1:52

2
tests/mir-opt/lower_intrinsics.transmute_to_ref_uninhabited.LowerIntrinsics.diff
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@ -12,7 +12,7 @@
StorageLive(_1); // scope 0 at $DIR/lower_intrinsics.rs:+1:9: +1:10
- _1 = transmute::<usize, &Never>(const 1_usize) -> [return: bb1, unwind unreachable]; // scope 0 at $DIR/lower_intrinsics.rs:+1:21: +1:48
- // mir::Constant
- // + span: $DIR/lower_intrinsics.rs:58:21: 58:40
- // + span: $DIR/lower_intrinsics.rs:64:21: 64:40
- // + literal: Const { ty: unsafe extern "rust-intrinsic" fn(usize) -> &Never {transmute::<usize, &Never>}, val: Value(<ZST>) }
+ _1 = const 1_usize as &Never (Transmute); // scope 0 at $DIR/lower_intrinsics.rs:+1:21: +1:48
+ goto -> bb1; // scope 0 at $DIR/lower_intrinsics.rs:+1:21: +1:48

2
tests/mir-opt/lower_intrinsics.transmute_uninhabited.LowerIntrinsics.diff
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@ -13,7 +13,7 @@
_2 = _1; // scope 1 at $DIR/lower_intrinsics.rs:+1:47: +1:48
- _0 = transmute::<(), Never>(move _2) -> unwind unreachable; // scope 1 at $DIR/lower_intrinsics.rs:+1:14: +1:49
- // mir::Constant
- // + span: $DIR/lower_intrinsics.rs:48:14: 48:46
- // + span: $DIR/lower_intrinsics.rs:54:14: 54:46
- // + literal: Const { ty: unsafe extern "rust-intrinsic" fn(()) -> Never {transmute::<(), Never>}, val: Value(<ZST>) }
+ _0 = move _2 as Never (Transmute); // scope 1 at $DIR/lower_intrinsics.rs:+1:14: +1:49
+ unreachable; // scope 1 at $DIR/lower_intrinsics.rs:+1:14: +1:49

60
tests/mir-opt/lower_intrinsics.unchecked.LowerIntrinsics.diff Normal file
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@ -0,0 +1,60 @@
- // MIR for `unchecked` before LowerIntrinsics
+ // MIR for `unchecked` after LowerIntrinsics
fn unchecked(_1: i32, _2: i32) -> () {
debug a => _1; // in scope 0 at $DIR/lower_intrinsics.rs:+0:25: +0:26
debug b => _2; // in scope 0 at $DIR/lower_intrinsics.rs:+0:33: +0:34
let mut _0: (); // return place in scope 0 at $DIR/lower_intrinsics.rs:+0:41: +0:41
let _3: i32; // in scope 0 at $DIR/lower_intrinsics.rs:+1:9: +1:11
let mut _4: i32; // in scope 0 at $DIR/lower_intrinsics.rs:+1:46: +1:47
let mut _5: i32; // in scope 0 at $DIR/lower_intrinsics.rs:+1:49: +1:50
let mut _7: i32; // in scope 0 at $DIR/lower_intrinsics.rs:+2:46: +2:47
let mut _8: i32; // in scope 0 at $DIR/lower_intrinsics.rs:+2:49: +2:50
scope 1 {
debug _x => _3; // in scope 1 at $DIR/lower_intrinsics.rs:+1:9: +1:11
let _6: i32; // in scope 1 at $DIR/lower_intrinsics.rs:+2:9: +2:11
scope 2 {
debug _y => _6; // in scope 2 at $DIR/lower_intrinsics.rs:+2:9: +2:11
}
}
bb0: {
StorageLive(_3); // scope 0 at $DIR/lower_intrinsics.rs:+1:9: +1:11
StorageLive(_4); // scope 0 at $DIR/lower_intrinsics.rs:+1:46: +1:47
_4 = _1; // scope 0 at $DIR/lower_intrinsics.rs:+1:46: +1:47
StorageLive(_5); // scope 0 at $DIR/lower_intrinsics.rs:+1:49: +1:50
_5 = _2; // scope 0 at $DIR/lower_intrinsics.rs:+1:49: +1:50
- _3 = unchecked_div::<i32>(move _4, move _5) -> [return: bb1, unwind unreachable]; // scope 0 at $DIR/lower_intrinsics.rs:+1:14: +1:51
- // mir::Constant
- // + span: $DIR/lower_intrinsics.rs:16:14: 16:45
- // + literal: Const { ty: unsafe extern "rust-intrinsic" fn(i32, i32) -> i32 {unchecked_div::<i32>}, val: Value(<ZST>) }
+ _3 = Div(move _4, move _5); // scope 0 at $DIR/lower_intrinsics.rs:+1:14: +1:51
+ goto -> bb1; // scope 0 at $DIR/lower_intrinsics.rs:+1:14: +1:51
}
bb1: {
StorageDead(_5); // scope 0 at $DIR/lower_intrinsics.rs:+1:50: +1:51
StorageDead(_4); // scope 0 at $DIR/lower_intrinsics.rs:+1:50: +1:51
StorageLive(_6); // scope 1 at $DIR/lower_intrinsics.rs:+2:9: +2:11
StorageLive(_7); // scope 1 at $DIR/lower_intrinsics.rs:+2:46: +2:47
_7 = _1; // scope 1 at $DIR/lower_intrinsics.rs:+2:46: +2:47
StorageLive(_8); // scope 1 at $DIR/lower_intrinsics.rs:+2:49: +2:50
_8 = _2; // scope 1 at $DIR/lower_intrinsics.rs:+2:49: +2:50
- _6 = unchecked_rem::<i32>(move _7, move _8) -> [return: bb2, unwind unreachable]; // scope 1 at $DIR/lower_intrinsics.rs:+2:14: +2:51
- // mir::Constant
- // + span: $DIR/lower_intrinsics.rs:17:14: 17:45
- // + literal: Const { ty: unsafe extern "rust-intrinsic" fn(i32, i32) -> i32 {unchecked_rem::<i32>}, val: Value(<ZST>) }
+ _6 = Rem(move _7, move _8); // scope 1 at $DIR/lower_intrinsics.rs:+2:14: +2:51
+ goto -> bb2; // scope 1 at $DIR/lower_intrinsics.rs:+2:14: +2:51
}
bb2: {
StorageDead(_8); // scope 1 at $DIR/lower_intrinsics.rs:+2:50: +2:51
StorageDead(_7); // scope 1 at $DIR/lower_intrinsics.rs:+2:50: +2:51
_0 = const (); // scope 0 at $DIR/lower_intrinsics.rs:+0:41: +3:2
StorageDead(_6); // scope 1 at $DIR/lower_intrinsics.rs:+3:1: +3:2
StorageDead(_3); // scope 0 at $DIR/lower_intrinsics.rs:+3:1: +3:2
return; // scope 0 at $DIR/lower_intrinsics.rs:+3:2: +3:2
}
}

2
tests/mir-opt/lower_intrinsics.unreachable.LowerIntrinsics.diff
View File

@ -13,7 +13,7 @@
StorageLive(_2); // scope 1 at $DIR/lower_intrinsics.rs:+1:14: +1:45
- _2 = std::intrinsics::unreachable() -> unwind unreachable; // scope 1 at $DIR/lower_intrinsics.rs:+1:14: +1:45
- // mir::Constant
- // + span: $DIR/lower_intrinsics.rs:31:14: 31:43
- // + span: $DIR/lower_intrinsics.rs:37:14: 37:43
- // + literal: Const { ty: unsafe extern "rust-intrinsic" fn() -> ! {std::intrinsics::unreachable}, val: Value(<ZST>) }
+ unreachable; // scope 1 at $DIR/lower_intrinsics.rs:+1:14: +1:45
}

6
tests/mir-opt/lower_intrinsics.with_overflow.LowerIntrinsics.diff
View File

@ -32,7 +32,7 @@
_5 = _2; // scope 0 at $DIR/lower_intrinsics.rs:+1:53: +1:54
- _3 = add_with_overflow::<i32>(move _4, move _5) -> [return: bb1, unwind unreachable]; // scope 0 at $DIR/lower_intrinsics.rs:+1:14: +1:55
- // mir::Constant
- // + span: $DIR/lower_intrinsics.rs:112:14: 112:49
- // + span: $DIR/lower_intrinsics.rs:118:14: 118:49
- // + literal: Const { ty: extern "rust-intrinsic" fn(i32, i32) -> (i32, bool) {add_with_overflow::<i32>}, val: Value(<ZST>) }
+ _3 = CheckedAdd(move _4, move _5); // scope 0 at $DIR/lower_intrinsics.rs:+1:14: +1:55
+ goto -> bb1; // scope 0 at $DIR/lower_intrinsics.rs:+1:14: +1:55
@ -48,7 +48,7 @@
_8 = _2; // scope 1 at $DIR/lower_intrinsics.rs:+2:53: +2:54
- _6 = sub_with_overflow::<i32>(move _7, move _8) -> [return: bb2, unwind unreachable]; // scope 1 at $DIR/lower_intrinsics.rs:+2:14: +2:55
- // mir::Constant
- // + span: $DIR/lower_intrinsics.rs:113:14: 113:49
- // + span: $DIR/lower_intrinsics.rs:119:14: 119:49
- // + literal: Const { ty: extern "rust-intrinsic" fn(i32, i32) -> (i32, bool) {sub_with_overflow::<i32>}, val: Value(<ZST>) }
+ _6 = CheckedSub(move _7, move _8); // scope 1 at $DIR/lower_intrinsics.rs:+2:14: +2:55
+ goto -> bb2; // scope 1 at $DIR/lower_intrinsics.rs:+2:14: +2:55
@ -64,7 +64,7 @@
_11 = _2; // scope 2 at $DIR/lower_intrinsics.rs:+3:53: +3:54
- _9 = mul_with_overflow::<i32>(move _10, move _11) -> [return: bb3, unwind unreachable]; // scope 2 at $DIR/lower_intrinsics.rs:+3:14: +3:55
- // mir::Constant
- // + span: $DIR/lower_intrinsics.rs:114:14: 114:49
- // + span: $DIR/lower_intrinsics.rs:120:14: 120:49
- // + literal: Const { ty: extern "rust-intrinsic" fn(i32, i32) -> (i32, bool) {mul_with_overflow::<i32>}, val: Value(<ZST>) }
+ _9 = CheckedMul(move _10, move _11); // scope 2 at $DIR/lower_intrinsics.rs:+3:14: +3:55
+ goto -> bb3; // scope 2 at $DIR/lower_intrinsics.rs:+3:14: +3:55

2
tests/mir-opt/lower_intrinsics.write_via_move_string.LowerIntrinsics.diff
View File

@ -17,7 +17,7 @@
_4 = move _2; // scope 1 at $DIR/lower_intrinsics.rs:+1:50: +1:51
- _0 = write_via_move::<String>(move _3, move _4) -> [return: bb1, unwind unreachable]; // scope 1 at $DIR/lower_intrinsics.rs:+1:14: +1:52
- // mir::Constant
- // + span: $DIR/lower_intrinsics.rs:129:14: 129:46
- // + span: $DIR/lower_intrinsics.rs:135:14: 135:46
- // + literal: Const { ty: unsafe extern "rust-intrinsic" fn(*mut String, String) {write_via_move::<String>}, val: Value(<ZST>) }
+ (*_3) = move _4; // scope 1 at $DIR/lower_intrinsics.rs:+1:14: +1:52
+ goto -> bb1; // scope 1 at $DIR/lower_intrinsics.rs:+1:14: +1:52