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convert _mm256_mask_cmp_epu8_mask to const generics

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Rémy Rakic 2021-03-04 22:36:44 +01:00 • committed by Amanieu d'Antras
parent 5d8ef1ba70
commit f22163f29c
1 changed files with 6 additions and 11 deletions
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17
library/stdarch/crates/core_arch/src/x86/avx512bw.rs
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@ -3850,22 +3850,17 @@ pub unsafe fn _mm256_cmp_epu8_mask<const IMM8: i32>(a: __m256i, b: __m256i) -> _
/// [Intel's documentation](https://software.intel.com/sites/landingpage/IntrinsicsGuide/#text=_mm256_mask_cmp_epu8_mask&expand=732)
#[inline]
#[target_feature(enable = "avx512bw,avx512vl")]
#[rustc_args_required_const(3)]
#[cfg_attr(test, assert_instr(vpcmp, imm8 = 0))]
pub unsafe fn _mm256_mask_cmp_epu8_mask(
#[rustc_legacy_const_generics(3)]
#[cfg_attr(test, assert_instr(vpcmp, IMM8 = 0))]
pub unsafe fn _mm256_mask_cmp_epu8_mask<const IMM8: i32>(
k1: __mmask32,
a: __m256i,
b: __m256i,
imm8: i32,
) -> __mmask32 {
static_assert_imm3!(IMM8);
let a = a.as_u8x32();
let b = b.as_u8x32();
macro_rules! call {
($imm3:expr) => {
vpcmpub256(a, b, $imm3, k1)
};
}
let r = constify_imm3!(imm8, call);
let r = vpcmpub256(a, b, IMM8, k1);
transmute(r)
}
@ -13504,7 +13499,7 @@ mod tests {
let a = _mm256_set1_epi8(0);
let b = _mm256_set1_epi8(1);
let mask = 0b01010101_01010101_01010101_01010101;
let r = _mm256_mask_cmp_epu8_mask(mask, a, b, _MM_CMPINT_LT);
let r = _mm256_mask_cmp_epu8_mask::<_MM_CMPINT_LT>(mask, a, b);
assert_eq!(r, 0b01010101_01010101_01010101_01010101);
}