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convert _mm256_dbsad_epu8 to const generics

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Rémy Rakic 2021-03-05 00:58:50 +01:00 • committed by Amanieu d'Antras
parent e947f7e788
commit be1147401b
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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@ -7923,17 +7923,13 @@ pub unsafe fn _mm512_maskz_dbsad_epu8<const IMM8: i32>(
/// [Intel's documentation](https://software.intel.com/sites/landingpage/IntrinsicsGuide/#text=_mm256_dbsad_epu8&expand=2111)
#[inline]
#[target_feature(enable = "avx512bw,avx512vl")]
#[rustc_args_required_const(2)]
#[cfg_attr(test, assert_instr(vdbpsadbw, imm8 = 0))]
pub unsafe fn _mm256_dbsad_epu8(a: __m256i, b: __m256i, imm8: i32) -> __m256i {
#[rustc_legacy_const_generics(2)]
#[cfg_attr(test, assert_instr(vdbpsadbw, IMM8 = 0))]
pub unsafe fn _mm256_dbsad_epu8<const IMM8: i32>(a: __m256i, b: __m256i) -> __m256i {
static_assert_imm8!(IMM8);
let a = a.as_u8x32();
let b = b.as_u8x32();
macro_rules! call {
($imm8:expr) => {
vdbpsadbw256(a, b, $imm8)
};
}
let r = constify_imm8_sae!(imm8, call);
let r = vdbpsadbw256(a, b, IMM8);
transmute(r)
}
@ -16893,7 +16889,7 @@ mod tests {
unsafe fn test_mm256_dbsad_epu8() {
let a = _mm256_set1_epi8(2);
let b = _mm256_set1_epi8(4);
let r = _mm256_dbsad_epu8(a, b, 0);
let r = _mm256_dbsad_epu8::<0>(a, b);
let e = _mm256_set1_epi16(8);
assert_eq_m256i(r, e);
}