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convert _mm256_cmp_epu8_mask to const generics

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This commit is contained in:
Rémy Rakic
2021-03-04 22:35:57 +01:00
committed by Amanieu d'Antras
parent 98c070c120
commit 5d8ef1ba70
1 changed files with 6 additions and 10 deletions
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16
library/stdarch/crates/core_arch/src/x86/avx512bw.rs
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@@ -3835,17 +3835,13 @@ pub unsafe fn _mm512_mask_cmp_epu8_mask<const IMM8: i32>(
/// [Intel's documentation](https://software.intel.com/sites/landingpage/IntrinsicsGuide/#text=_mm256_cmp_epu8_mask&expand=731)
#[inline]
#[target_feature(enable = "avx512bw,avx512vl")]
#[rustc_args_required_const(2)]
#[cfg_attr(test, assert_instr(vpcmp, imm8 = 0))]
pub unsafe fn _mm256_cmp_epu8_mask(a: __m256i, b: __m256i, imm8: i32) -> __mmask32 {
#[rustc_legacy_const_generics(2)]
#[cfg_attr(test, assert_instr(vpcmp, IMM8 = 0))]
pub unsafe fn _mm256_cmp_epu8_mask<const IMM8: i32>(a: __m256i, b: __m256i) -> __mmask32 {
static_assert_imm3!(IMM8);
let a = a.as_u8x32();
let b = b.as_u8x32();
macro_rules! call {
($imm3:expr) => {
vpcmpub256(a, b, $imm3, 0b11111111_11111111_11111111_11111111)
};
}
let r = constify_imm3!(imm8, call);
let r = vpcmpub256(a, b, IMM8, 0b11111111_11111111_11111111_11111111);
transmute(r)
}
@@ -13499,7 +13495,7 @@ mod tests {
unsafe fn test_mm256_cmp_epu8_mask() {
let a = _mm256_set1_epi8(0);
let b = _mm256_set1_epi8(1);
let m = _mm256_cmp_epu8_mask(a, b, _MM_CMPINT_LT);
let m = _mm256_cmp_epu8_mask::<_MM_CMPINT_LT>(a, b);
assert_eq!(m, 0b11111111_11111111_11111111_11111111);
}