bjoernager/rust
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Always name the return place.

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This commit is contained in:
Camille GILLOT 2023-05-15 21:15:28 +02:00
parent d4096e0412
commit d7983a2f23
25 changed files with 191 additions and 195 deletions
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11
tests/codegen/uninit-consts.rs
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@ -1,4 +1,5 @@
// compile-flags: -C no-prepopulate-passes
// min-llvm-version: 15.0 (for opaque pointers)
// Check that we use undef (and not zero) for uninitialized bytes in constants.
@ -8,7 +9,7 @@ use std::mem::MaybeUninit;
pub struct PartiallyUninit {
x: u32,
y: MaybeUninit<[u8; 10]>
y: MaybeUninit<[u8; 10]>,
}
// CHECK: [[FULLY_UNINIT:@[0-9]+]] = private unnamed_addr constant <{ [10 x i8] }> undef
@ -25,7 +26,7 @@ pub struct PartiallyUninit {
#[no_mangle]
pub const fn fully_uninit() -> MaybeUninit<[u8; 10]> {
const M: MaybeUninit<[u8; 10]> = MaybeUninit::uninit();
// CHECK: call void @llvm.memcpy.{{.+}}({{i8\*|ptr}} align 1 %{{[0-9]+}}, {{i8\*|ptr}} align 1 {{.*}}[[FULLY_UNINIT]]{{.*}}, i{{(32|64)}} 10, i1 false)
// CHECK: call void @llvm.memcpy.{{.+}}(ptr align 1 %_0, ptr align 1 {{.*}}[[FULLY_UNINIT]]{{.*}}, i{{(32|64)}} 10, i1 false)
M
}
@ -33,7 +34,7 @@ pub const fn fully_uninit() -> MaybeUninit<[u8; 10]> {
#[no_mangle]
pub const fn partially_uninit() -> PartiallyUninit {
const X: PartiallyUninit = PartiallyUninit { x: 0xdeadbeef, y: MaybeUninit::uninit() };
// CHECK: call void @llvm.memcpy.{{.+}}({{i8\*|ptr}} align 4 %{{[0-9]+}}, {{i8\*|ptr}} align 4 {{.*}}[[PARTIALLY_UNINIT]]{{.*}}, i{{(32|64)}} 16, i1 false)
// CHECK: call void @llvm.memcpy.{{.+}}(ptr align 4 %_0, ptr align 4 {{.*}}[[PARTIALLY_UNINIT]]{{.*}}, i{{(32|64)}} 16, i1 false)
X
}
@ -41,7 +42,7 @@ pub const fn partially_uninit() -> PartiallyUninit {
#[no_mangle]
pub const fn uninit_padding_huge() -> [(u32, u8); 4096] {
const X: [(u32, u8); 4096] = [(123, 45); 4096];
// CHECK: call void @llvm.memcpy.{{.+}}({{i8\*|ptr}} align 4 %{{[0-9]+}}, {{i8\*|ptr}} align 4 {{.*}}[[UNINIT_PADDING_HUGE]]{{.*}}, i{{(32|64)}} 32768, i1 false)
// CHECK: call void @llvm.memcpy.{{.+}}(ptr align 4 %_0, ptr align 4 {{.*}}[[UNINIT_PADDING_HUGE]]{{.*}}, i{{(32|64)}} 32768, i1 false)
X
}
@ -49,6 +50,6 @@ pub const fn uninit_padding_huge() -> [(u32, u8); 4096] {
#[no_mangle]
pub const fn fully_uninit_huge() -> MaybeUninit<[u32; 4096]> {
const F: MaybeUninit<[u32; 4096]> = MaybeUninit::uninit();
// CHECK: call void @llvm.memcpy.{{.+}}({{i8\*|ptr}} align 4 %{{[0-9]+}}, {{i8\*|ptr}} align 4 {{.*}}[[FULLY_UNINIT_HUGE]]{{.*}}, i{{(32|64)}} 16384, i1 false)
// CHECK: call void @llvm.memcpy.{{.+}}(ptr align 4 %_0, ptr align 4 {{.*}}[[FULLY_UNINIT_HUGE]]{{.*}}, i{{(32|64)}} 16384, i1 false)
F
}