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convert _mm256_maskz_shufflelo_epi16 to const generics

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Rémy Rakic 2021-03-05 00:45:15 +01:00 • committed by Amanieu d'Antras
parent 573dd11fb5
commit e6a9f5085d
1 changed files with 7 additions and 11 deletions
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18
library/stdarch/crates/core_arch/src/x86/avx512bw.rs
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@ -7242,15 +7242,11 @@ pub unsafe fn _mm256_mask_shufflelo_epi16<const IMM8: i32>(
/// [Intel's documentation](https://software.intel.com/sites/landingpage/IntrinsicsGuide/#text=_mm256_maskz_shufflelo_epi16&expand=5217)
#[inline]
#[target_feature(enable = "avx512bw,avx512vl")]
#[cfg_attr(test, assert_instr(vpshuflw, imm8 = 5))]
#[rustc_args_required_const(2)]
pub unsafe fn _mm256_maskz_shufflelo_epi16(k: __mmask16, a: __m256i, imm8: i32) -> __m256i {
macro_rules! call {
($imm8:expr) => {
_mm256_shufflelo_epi16(a, $imm8)
};
}
let shuffle = constify_imm8_sae!(imm8, call);
#[cfg_attr(test, assert_instr(vpshuflw, IMM8 = 5))]
#[rustc_legacy_const_generics(2)]
pub unsafe fn _mm256_maskz_shufflelo_epi16<const IMM8: i32>(k: __mmask16, a: __m256i) -> __m256i {
static_assert_imm8!(IMM8);
let shuffle = _mm256_shufflelo_epi16(a, IMM8);
let zero = _mm256_setzero_si256().as_i16x16();
transmute(simd_select_bitmask(k, shuffle.as_i16x16(), zero))
}
@ -16365,9 +16361,9 @@ mod tests {
#[simd_test(enable = "avx512bw,avx512vl")]
unsafe fn test_mm256_maskz_shufflelo_epi16() {
let a = _mm256_set_epi16(0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15);
let r = _mm256_maskz_shufflelo_epi16(0, a, 0b00_01_01_11);
let r = _mm256_maskz_shufflelo_epi16::<0b00_01_01_11>(0, a);
assert_eq_m256i(r, _mm256_setzero_si256());
let r = _mm256_maskz_shufflelo_epi16(0b11111111_11111111, a, 0b00_01_01_11);
let r = _mm256_maskz_shufflelo_epi16::<0b00_01_01_11>(0b11111111_11111111, a);
let e = _mm256_set_epi16(0, 1, 2, 3, 7, 6, 6, 4, 8, 9, 10, 11, 15, 14, 14, 12);
assert_eq_m256i(r, e);
}