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FileCheck lower_intrinsics.

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This commit is contained in:
Camille GILLOT 2023-10-16 20:00:43 +00:00
parent d8cffda66a
commit 4bae847969
1 changed files with 87 additions and 1 deletions
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88
tests/mir-opt/lower_intrinsics.rs
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@ -1,4 +1,3 @@
// skip-filecheck
// unit-test: LowerIntrinsics // unit-test: LowerIntrinsics
// EMIT_MIR_FOR_EACH_PANIC_STRATEGY // EMIT_MIR_FOR_EACH_PANIC_STRATEGY
@ -7,6 +6,10 @@
// EMIT_MIR lower_intrinsics.wrapping.LowerIntrinsics.diff // EMIT_MIR lower_intrinsics.wrapping.LowerIntrinsics.diff
pub fn wrapping(a: i32, b: i32) { pub fn wrapping(a: i32, b: i32) {
// CHECK-LABEL: fn wrapping(
// CHECK: {{_.*}} = Add(
// CHECK: {{_.*}} = Sub(
// CHECK: {{_.*}} = Mul(
let _x = core::intrinsics::wrapping_add(a, b); let _x = core::intrinsics::wrapping_add(a, b);
let _y = core::intrinsics::wrapping_sub(a, b); let _y = core::intrinsics::wrapping_sub(a, b);
let _z = core::intrinsics::wrapping_mul(a, b); let _z = core::intrinsics::wrapping_mul(a, b);
@ -14,6 +17,14 @@ pub fn wrapping(a: i32, b: i32) {
// EMIT_MIR lower_intrinsics.unchecked.LowerIntrinsics.diff // EMIT_MIR lower_intrinsics.unchecked.LowerIntrinsics.diff
pub unsafe fn unchecked(a: i32, b: i32) { pub unsafe fn unchecked(a: i32, b: i32) {
// CHECK-LABEL: fn unchecked(
// CHECK: {{_.*}} = AddUnchecked(
// CHECK: {{_.*}} = SubUnchecked(
// CHECK: {{_.*}} = MulUnchecked(
// CHECK: {{_.*}} = Div(
// CHECK: {{_.*}} = Rem(
// CHECK: {{_.*}} = ShlUnchecked(
// CHECK: {{_.*}} = ShrUnchecked(
let _a = core::intrinsics::unchecked_add(a, b); let _a = core::intrinsics::unchecked_add(a, b);
let _b = core::intrinsics::unchecked_sub(a, b); let _b = core::intrinsics::unchecked_sub(a, b);
let _c = core::intrinsics::unchecked_mul(a, b); let _c = core::intrinsics::unchecked_mul(a, b);
@ -25,26 +36,39 @@ pub unsafe fn unchecked(a: i32, b: i32) {
// EMIT_MIR lower_intrinsics.size_of.LowerIntrinsics.diff // EMIT_MIR lower_intrinsics.size_of.LowerIntrinsics.diff
pub fn size_of<T>() -> usize { pub fn size_of<T>() -> usize {
// CHECK-LABEL: fn size_of(
// CHECK: {{_.*}} = SizeOf(T);
core::intrinsics::size_of::<T>() core::intrinsics::size_of::<T>()
} }
// EMIT_MIR lower_intrinsics.align_of.LowerIntrinsics.diff // EMIT_MIR lower_intrinsics.align_of.LowerIntrinsics.diff
pub fn align_of<T>() -> usize { pub fn align_of<T>() -> usize {
// CHECK-LABEL: fn align_of(
// CHECK: {{_.*}} = AlignOf(T);
core::intrinsics::min_align_of::<T>() core::intrinsics::min_align_of::<T>()
} }
// EMIT_MIR lower_intrinsics.forget.LowerIntrinsics.diff // EMIT_MIR lower_intrinsics.forget.LowerIntrinsics.diff
pub fn forget<T>(t: T) { pub fn forget<T>(t: T) {
// CHECK-LABEL: fn forget(
// CHECK-NOT: Drop(
// CHECK: return;
// CHECK-NOT: Drop(
core::intrinsics::forget(t) core::intrinsics::forget(t)
} }
// EMIT_MIR lower_intrinsics.unreachable.LowerIntrinsics.diff // EMIT_MIR lower_intrinsics.unreachable.LowerIntrinsics.diff
pub fn unreachable() -> ! { pub fn unreachable() -> ! {
// CHECK-LABEL: fn unreachable(
// CHECK: unreachable;
unsafe { core::intrinsics::unreachable() }; unsafe { core::intrinsics::unreachable() };
} }
// EMIT_MIR lower_intrinsics.non_const.LowerIntrinsics.diff // EMIT_MIR lower_intrinsics.non_const.LowerIntrinsics.diff
pub fn non_const<T>() -> usize { pub fn non_const<T>() -> usize {
// CHECK-LABEL: fn non_const(
// CHECK: SizeOf(T);
// Check that lowering works with non-const operand as a func. // Check that lowering works with non-const operand as a func.
let size_of_t = core::intrinsics::size_of::<T>; let size_of_t = core::intrinsics::size_of::<T>;
size_of_t() size_of_t()
@ -52,33 +76,55 @@ pub fn non_const<T>() -> usize {
// EMIT_MIR lower_intrinsics.transmute_inhabited.LowerIntrinsics.diff // EMIT_MIR lower_intrinsics.transmute_inhabited.LowerIntrinsics.diff
pub fn transmute_inhabited(c: std::cmp::Ordering) -> i8 { pub fn transmute_inhabited(c: std::cmp::Ordering) -> i8 {
// CHECK-LABEL: fn transmute_inhabited(
// CHECK: {{_.*}} = {{.*}} as i8 (Transmute);
unsafe { std::mem::transmute(c) } unsafe { std::mem::transmute(c) }
} }
// EMIT_MIR lower_intrinsics.transmute_uninhabited.LowerIntrinsics.diff // EMIT_MIR lower_intrinsics.transmute_uninhabited.LowerIntrinsics.diff
pub unsafe fn transmute_uninhabited(u: ()) -> Never { pub unsafe fn transmute_uninhabited(u: ()) -> Never {
// CHECK-LABEL: fn transmute_uninhabited(
// CHECK: {{_.*}} = {{.*}} as Never (Transmute);
// CHECK: unreachable;
unsafe { std::mem::transmute::<(), Never>(u) } unsafe { std::mem::transmute::<(), Never>(u) }
} }
// EMIT_MIR lower_intrinsics.transmute_ref_dst.LowerIntrinsics.diff // EMIT_MIR lower_intrinsics.transmute_ref_dst.LowerIntrinsics.diff
pub unsafe fn transmute_ref_dst<T: ?Sized>(u: &T) -> *const T { pub unsafe fn transmute_ref_dst<T: ?Sized>(u: &T) -> *const T {
// CHECK-LABEL: fn transmute_ref_dst(
// CHECK: {{_.*}} = {{.*}} as *const T (Transmute);
unsafe { std::mem::transmute(u) } unsafe { std::mem::transmute(u) }
} }
// EMIT_MIR lower_intrinsics.transmute_to_ref_uninhabited.LowerIntrinsics.diff // EMIT_MIR lower_intrinsics.transmute_to_ref_uninhabited.LowerIntrinsics.diff
pub unsafe fn transmute_to_ref_uninhabited() -> ! { pub unsafe fn transmute_to_ref_uninhabited() -> ! {
// CHECK-LABEL: fn transmute_to_ref_uninhabited(
// CHECK: {{_.*}} = {{.*}} as &Never (Transmute);
// CHECK: unreachable;
let x: &Never = std::mem::transmute(1usize); let x: &Never = std::mem::transmute(1usize);
match *x {} match *x {}
} }
// EMIT_MIR lower_intrinsics.transmute_to_mut_uninhabited.LowerIntrinsics.diff // EMIT_MIR lower_intrinsics.transmute_to_mut_uninhabited.LowerIntrinsics.diff
pub unsafe fn transmute_to_mut_uninhabited() -> ! { pub unsafe fn transmute_to_mut_uninhabited() -> ! {
// CHECK-LABEL: fn transmute_to_mut_uninhabited(
// CHECK: {{_.*}} = {{.*}} as &mut Never (Transmute);
// CHECK: unreachable;
let x: &mut Never = std::mem::transmute(1usize); let x: &mut Never = std::mem::transmute(1usize);
match *x {} match *x {}
} }
// EMIT_MIR lower_intrinsics.transmute_to_box_uninhabited.LowerIntrinsics.diff // EMIT_MIR lower_intrinsics.transmute_to_box_uninhabited.LowerIntrinsics.diff
pub unsafe fn transmute_to_box_uninhabited() -> ! { pub unsafe fn transmute_to_box_uninhabited() -> ! {
// CHECK-LABEL: fn transmute_to_box_uninhabited(
// CHECK: {{_.*}} = {{.*}} as std::boxed::Box<Never> (Transmute);
// CHECK: unreachable;
let x: Box<Never> = std::mem::transmute(1usize); let x: Box<Never> = std::mem::transmute(1usize);
match *x {} match *x {}
} }
@ -91,6 +137,12 @@ pub enum E {
// EMIT_MIR lower_intrinsics.discriminant.LowerIntrinsics.diff // EMIT_MIR lower_intrinsics.discriminant.LowerIntrinsics.diff
pub fn discriminant<T>(t: T) { pub fn discriminant<T>(t: T) {
// CHECK-LABEL: fn discriminant(
// CHECK: {{_.*}} = discriminant(
// CHECK: {{_.*}} = discriminant(
// CHECK: {{_.*}} = discriminant(
// CHECK: {{_.*}} = discriminant(
core::intrinsics::discriminant_value(&t); core::intrinsics::discriminant_value(&t);
core::intrinsics::discriminant_value(&0); core::intrinsics::discriminant_value(&0);
core::intrinsics::discriminant_value(&()); core::intrinsics::discriminant_value(&());
@ -105,6 +157,9 @@ pub fn discriminant<T>(t: T) {
// EMIT_MIR lower_intrinsics.f_copy_nonoverlapping.LowerIntrinsics.diff // EMIT_MIR lower_intrinsics.f_copy_nonoverlapping.LowerIntrinsics.diff
pub fn f_copy_nonoverlapping() { pub fn f_copy_nonoverlapping() {
// CHECK-LABEL: fn f_copy_nonoverlapping(
// CHECK: copy_nonoverlapping({{.*}});
let src = (); let src = ();
let mut dst = (); let mut dst = ();
unsafe { unsafe {
@ -114,6 +169,9 @@ pub fn f_copy_nonoverlapping() {
// EMIT_MIR lower_intrinsics.assume.LowerIntrinsics.diff // EMIT_MIR lower_intrinsics.assume.LowerIntrinsics.diff
pub fn assume() { pub fn assume() {
// CHECK-LABEL: fn assume(
// CHECK: assume({{.*}});
unsafe { unsafe {
std::intrinsics::assume(true); std::intrinsics::assume(true);
} }
@ -121,6 +179,11 @@ pub fn assume() {
// EMIT_MIR lower_intrinsics.with_overflow.LowerIntrinsics.diff // EMIT_MIR lower_intrinsics.with_overflow.LowerIntrinsics.diff
pub fn with_overflow(a: i32, b: i32) { pub fn with_overflow(a: i32, b: i32) {
// CHECK-LABEL: fn with_overflow(
// CHECK: CheckedAdd(
// CHECK: CheckedSub(
// CHECK: CheckedMul(
let _x = core::intrinsics::add_with_overflow(a, b); let _x = core::intrinsics::add_with_overflow(a, b);
let _y = core::intrinsics::sub_with_overflow(a, b); let _y = core::intrinsics::sub_with_overflow(a, b);
let _z = core::intrinsics::mul_with_overflow(a, b); let _z = core::intrinsics::mul_with_overflow(a, b);
@ -128,16 +191,32 @@ pub fn with_overflow(a: i32, b: i32) {
// EMIT_MIR lower_intrinsics.read_via_copy_primitive.LowerIntrinsics.diff // EMIT_MIR lower_intrinsics.read_via_copy_primitive.LowerIntrinsics.diff
pub fn read_via_copy_primitive(r: &i32) -> i32 { pub fn read_via_copy_primitive(r: &i32) -> i32 {
// CHECK-LABEL: fn read_via_copy_primitive(
// CHECK: [[tmp:_.*]] = &raw const (*_1);
// CHECK: _0 = (*[[tmp]]);
// CHECK: return;
unsafe { core::intrinsics::read_via_copy(r) } unsafe { core::intrinsics::read_via_copy(r) }
} }
// EMIT_MIR lower_intrinsics.read_via_copy_uninhabited.LowerIntrinsics.diff // EMIT_MIR lower_intrinsics.read_via_copy_uninhabited.LowerIntrinsics.diff
pub fn read_via_copy_uninhabited(r: &Never) -> Never { pub fn read_via_copy_uninhabited(r: &Never) -> Never {
// CHECK-LABEL: fn read_via_copy_uninhabited(
// CHECK: [[tmp:_.*]] = &raw const (*_1);
// CHECK: _0 = (*[[tmp]]);
// CHECK: unreachable;
unsafe { core::intrinsics::read_via_copy(r) } unsafe { core::intrinsics::read_via_copy(r) }
} }
// EMIT_MIR lower_intrinsics.write_via_move_string.LowerIntrinsics.diff // EMIT_MIR lower_intrinsics.write_via_move_string.LowerIntrinsics.diff
pub fn write_via_move_string(r: &mut String, v: String) { pub fn write_via_move_string(r: &mut String, v: String) {
// CHECK-LABEL: fn write_via_move_string(
// CHECK: [[ptr:_.*]] = &raw mut (*_1);
// CHECK: [[tmp:_.*]] = move _2;
// CHECK: (*[[ptr]]) = move [[tmp]];
// CHECK: return;
unsafe { core::intrinsics::write_via_move(r, v) } unsafe { core::intrinsics::write_via_move(r, v) }
} }
@ -145,6 +224,10 @@ pub enum Never {}
// EMIT_MIR lower_intrinsics.option_payload.LowerIntrinsics.diff // EMIT_MIR lower_intrinsics.option_payload.LowerIntrinsics.diff
pub fn option_payload(o: &Option<usize>, p: &Option<String>) { pub fn option_payload(o: &Option<usize>, p: &Option<String>) {
// CHECK-LABEL: fn option_payload(
// CHECK: {{_.*}} = &raw const (((*{{_.*}}) as Some).0: usize);
// CHECK: {{_.*}} = &raw const (((*{{_.*}}) as Some).0: std::string::String);
unsafe { unsafe {
let _x = core::intrinsics::option_payload_ptr(o); let _x = core::intrinsics::option_payload_ptr(o);
let _y = core::intrinsics::option_payload_ptr(p); let _y = core::intrinsics::option_payload_ptr(p);
@ -153,5 +236,8 @@ pub fn option_payload(o: &Option<usize>, p: &Option<String>) {
// EMIT_MIR lower_intrinsics.ptr_offset.LowerIntrinsics.diff // EMIT_MIR lower_intrinsics.ptr_offset.LowerIntrinsics.diff
pub unsafe fn ptr_offset(p: *const i32, d: isize) -> *const i32 { pub unsafe fn ptr_offset(p: *const i32, d: isize) -> *const i32 {
// CHECK-LABEL: fn ptr_offset(
// CHECK: _0 = Offset(
core::intrinsics::offset(p, d) core::intrinsics::offset(p, d)
} }