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convert _mm_mask_alignr_epi8 to const generics

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This commit is contained in:
Rémy Rakic 2021-03-05 01:09:23 +01:00 • committed by Amanieu d'Antras
parent dfacaf7f3e
commit a90b878a67
1 changed files with 7 additions and 12 deletions
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19
library/stdarch/crates/core_arch/src/x86/avx512bw.rs
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@ -9131,21 +9131,16 @@ pub unsafe fn _mm256_maskz_alignr_epi8<const IMM8: i32>(
/// [Intel's documentation](https://software.intel.com/sites/landingpage/IntrinsicsGuide/#text=_mm_mask_alignr_epi8&expand=258)
#[inline]
#[target_feature(enable = "avx512bw,avx512vl")]
#[rustc_args_required_const(4)]
#[cfg_attr(test, assert_instr(vpalignr, imm8 = 5))]
pub unsafe fn _mm_mask_alignr_epi8(
#[rustc_legacy_const_generics(4)]
#[cfg_attr(test, assert_instr(vpalignr, IMM8 = 5))]
pub unsafe fn _mm_mask_alignr_epi8<const IMM8: i32>(
src: __m128i,
k: __mmask16,
a: __m128i,
b: __m128i,
imm8: i32,
) -> __m128i {
macro_rules! call {
($imm8:expr) => {
_mm_alignr_epi8(a, b, $imm8)
};
}
let r = constify_imm8_sae!(imm8, call);
static_assert_imm8!(IMM8);
let r = _mm_alignr_epi8(a, b, IMM8);
transmute(simd_select_bitmask(k, r.as_i8x16(), src.as_i8x16()))
}
@ -17782,9 +17777,9 @@ mod tests {
unsafe fn test_mm_mask_alignr_epi8() {
let a = _mm_set_epi8(1, 0, 0, 0, 1, 0, 0, 0, 1, 0, 0, 0, 1, 0, 0, 0);
let b = _mm_set1_epi8(1);
let r = _mm_mask_alignr_epi8(a, 0, a, b, 14);
let r = _mm_mask_alignr_epi8::<14>(a, 0, a, b);
assert_eq_m128i(r, a);
let r = _mm_mask_alignr_epi8(a, 0b11111111_11111111, a, b, 14);
let r = _mm_mask_alignr_epi8::<14>(a, 0b11111111_11111111, a, b);
let e = _mm_set_epi8(0, 0, 1, 0, 0, 0, 1, 0, 0, 0, 1, 0, 0, 0, 1, 1);
assert_eq_m128i(r, e);
}