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Convert _mm256_permute2f128_ps to const generics

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Rémy Rakic 2021-03-01 21:15:42 +01:00 • committed by Amanieu d'Antras
parent 7f6e044455
commit 1f2b551424
1 changed files with 6 additions and 10 deletions
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16
library/stdarch/crates/core_arch/src/x86/avx.rs
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@ -1326,16 +1326,12 @@ pub unsafe fn _mm_permute_pd(a: __m128d, imm8: i32) -> __m128d {
/// [Intel's documentation](https://software.intel.com/sites/landingpage/IntrinsicsGuide/#text=_mm256_permute2f128_ps)
#[inline]
#[target_feature(enable = "avx")]
#[cfg_attr(test, assert_instr(vperm2f128, imm8 = 0x5))]
#[rustc_args_required_const(2)]
#[cfg_attr(test, assert_instr(vperm2f128, IMM8 = 0x5))]
#[rustc_legacy_const_generics(2)]
#[stable(feature = "simd_x86", since = "1.27.0")]
pub unsafe fn _mm256_permute2f128_ps(a: __m256, b: __m256, imm8: i32) -> __m256 {
macro_rules! call {
($imm8:expr) => {
vperm2f128ps256(a, b, $imm8)
};
}
constify_imm8!(imm8, call)
pub unsafe fn _mm256_permute2f128_ps<const IMM8: i32>(a: __m256, b: __m256) -> __m256 {
static_assert_imm8!(IMM8);
vperm2f128ps256(a, b, IMM8 as i8)
}
/// Shuffles 256 bits (composed of 4 packed double-precision (64-bit)
@ -3884,7 +3880,7 @@ mod tests {
unsafe fn test_mm256_permute2f128_ps() {
let a = _mm256_setr_ps(1., 2., 3., 4., 1., 2., 3., 4.);
let b = _mm256_setr_ps(5., 6., 7., 8., 5., 6., 7., 8.);
let r = _mm256_permute2f128_ps(a, b, 0x13);
let r = _mm256_permute2f128_ps::<0x13>(a, b);
let e = _mm256_setr_ps(5., 6., 7., 8., 1., 2., 3., 4.);
assert_eq_m256(r, e);
}