mirror of
https://github.com/rust-lang/rust.git
synced 2024-11-27 17:24:06 +00:00
27 lines
750 B
Rust
27 lines
750 B
Rust
// compile-flags: -C no-prepopulate-passes
|
|
// only-64bit (because the LLVM type of i64 for usize shows up)
|
|
//
|
|
|
|
#![crate_type = "lib"]
|
|
#![feature(repr_simd, platform_intrinsics)]
|
|
|
|
extern "platform-intrinsic" {
|
|
pub(crate) fn simd_arith_offset<T, U>(ptrs: T, offsets: U) -> T;
|
|
}
|
|
|
|
/// A vector of *const T.
|
|
#[derive(Debug, Copy, Clone)]
|
|
#[repr(simd)]
|
|
pub struct SimdConstPtr<T, const LANES: usize>([*const T; LANES]);
|
|
|
|
#[derive(Debug, Copy, Clone)]
|
|
#[repr(simd)]
|
|
pub struct Simd<T, const LANES: usize>([T; LANES]);
|
|
|
|
// CHECK-LABEL: smoke
|
|
#[no_mangle]
|
|
pub fn smoke(ptrs: SimdConstPtr<u8, 8>, offsets: Simd<usize, 8>) -> SimdConstPtr<u8, 8> {
|
|
// CHECK: getelementptr i8, <8 x ptr> %0, <8 x i64> %1
|
|
unsafe { simd_arith_offset(ptrs, offsets) }
|
|
}
|