mirror of
https://github.com/rust-lang/rust.git
synced 2024-11-24 07:44:10 +00:00
44 lines
1.2 KiB
Rust
44 lines
1.2 KiB
Rust
// compile-flags: -C no-prepopulate-passes -Copt-level=0
|
|
|
|
#![crate_type = "lib"]
|
|
#![feature(repr_simd)]
|
|
|
|
// Hack to get the correct size for the length part in slices
|
|
// CHECK: @helper([[USIZE:i[0-9]+]] %_1)
|
|
#[no_mangle]
|
|
pub fn helper(_: usize) {
|
|
}
|
|
|
|
// Check that we correctly generate a GEP for a ZST that is not included in Scalar layout
|
|
// CHECK-LABEL: @scalar_layout
|
|
#[no_mangle]
|
|
pub fn scalar_layout(s: &(u64, ())) {
|
|
// CHECK: getelementptr i8, {{.+}}, [[USIZE]] 8
|
|
let x = &s.1;
|
|
witness(&x); // keep variable in an alloca
|
|
}
|
|
|
|
// Check that we correctly generate a GEP for a ZST that is not included in ScalarPair layout
|
|
// CHECK-LABEL: @scalarpair_layout
|
|
#[no_mangle]
|
|
pub fn scalarpair_layout(s: &(u64, u32, ())) {
|
|
// CHECK: getelementptr i8, {{.+}}, [[USIZE]] 12
|
|
let x = &s.2;
|
|
witness(&x); // keep variable in an alloca
|
|
}
|
|
|
|
#[repr(simd)]
|
|
pub struct U64x4(u64, u64, u64, u64);
|
|
|
|
// Check that we correctly generate a GEP for a ZST that is not included in Vector layout
|
|
// CHECK-LABEL: @vector_layout
|
|
#[no_mangle]
|
|
pub fn vector_layout(s: &(U64x4, ())) {
|
|
// CHECK: getelementptr i8, {{.+}}, [[USIZE]] 32
|
|
let x = &s.1;
|
|
witness(&x); // keep variable in an alloca
|
|
}
|
|
|
|
#[inline(never)]
|
|
fn witness(_: &impl Sized) {}
|