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Convert _mm256_mpsadbw_epu8 to const generics

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Rémy Rakic 2021-03-01 21:39:11 +01:00 • committed by Amanieu d'Antras
parent e836a49019
commit 0a858abd4c
1 changed files with 6 additions and 13 deletions
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19
library/stdarch/crates/core_arch/src/x86/avx2.rs
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@ -2246,19 +2246,12 @@ pub unsafe fn _mm256_movemask_epi8(a: __m256i) -> i32 {
/// [Intel's documentation](https://software.intel.com/sites/landingpage/IntrinsicsGuide/#text=_mm256_mpsadbw_epu8)
#[inline]
#[target_feature(enable = "avx2")]
#[cfg_attr(test, assert_instr(vmpsadbw, imm8 = 0))]
#[rustc_args_required_const(2)]
#[cfg_attr(test, assert_instr(vmpsadbw, IMM8 = 0))]
#[rustc_legacy_const_generics(2)]
#[stable(feature = "simd_x86", since = "1.27.0")]
pub unsafe fn _mm256_mpsadbw_epu8(a: __m256i, b: __m256i, imm8: i32) -> __m256i {
let a = a.as_u8x32();
let b = b.as_u8x32();
macro_rules! call {
($imm8:expr) => {
mpsadbw(a, b, $imm8)
};
}
let r = constify_imm8!(imm8, call);
transmute(r)
pub unsafe fn _mm256_mpsadbw_epu8<const IMM8: i32>(a: __m256i, b: __m256i) -> __m256i {
static_assert_imm8!(IMM8);
transmute(mpsadbw(a.as_u8x32(), b.as_u8x32(), IMM8))
}
/// Multiplies the low 32-bit integers from each packed 64-bit element in
@ -4997,7 +4990,7 @@ mod tests {
unsafe fn test_mm256_mpsadbw_epu8() {
let a = _mm256_set1_epi8(2);
let b = _mm256_set1_epi8(4);
let r = _mm256_mpsadbw_epu8(a, b, 0);
let r = _mm256_mpsadbw_epu8::<0>(a, b);
let e = _mm256_set1_epi16(8);
assert_eq_m256i(r, e);
}