mirror of
https://github.com/rust-lang/rust.git
synced 2025-11-03 22:49:17 +00:00
34 lines
768 B
Rust
34 lines
768 B
Rust
//@ only-x86_64
|
|
// Set the base cpu explicitly, in case the default has been changed.
|
|
//@ compile-flags: -Copt-level=3 -Ctarget-cpu=x86-64
|
|
|
|
#![crate_type = "lib"]
|
|
|
|
#[cfg(target_arch = "x86_64")]
|
|
use std::arch::x86_64::*;
|
|
|
|
// CHECK-LABEL: @with_avx
|
|
#[no_mangle]
|
|
#[cfg(target_arch = "x86_64")]
|
|
#[target_feature(enable = "avx")]
|
|
fn with_avx(x: __m256) -> __m256 {
|
|
// CHECK: fadd <8 x float>
|
|
let add = {
|
|
#[inline(always)]
|
|
|x, y| unsafe { _mm256_add_ps(x, y) }
|
|
};
|
|
add(x, x)
|
|
}
|
|
|
|
// CHECK-LABEL: @without_avx
|
|
#[no_mangle]
|
|
#[cfg(target_arch = "x86_64")]
|
|
unsafe fn without_avx(x: __m256) -> __m256 {
|
|
// CHECK-NOT: fadd <8 x float>
|
|
let add = {
|
|
#[inline(always)]
|
|
|x, y| unsafe { _mm256_add_ps(x, y) }
|
|
};
|
|
add(x, x)
|
|
}
|