Function `_mm256_maskz_set1_epi64`

#[target_feature(enable = "avx512f", enable = "avx512vl")]
pub const fn _mm256_maskz_set1_epi64(k: __mmask8, a: i64) -> __m256i

Broadcast 64-bit integer a to all elements of dst using zeromask k (elements are zeroed out when the corresponding mask bit is not set).