Function _mm256_maskz_srav_epi64
#[target_feature(enable = "avx512f", enable = "avx512vl")]
pub const fn _mm256_maskz_srav_epi64(k: __mmask8, a: __m256i, count: __m256i) -> __m256iShift packed 64-bit integers in a right by the amount specified by the corresponding element in count while shifting in sign bits, and store the results in dst using zeromask k (elements are zeroed out when the corresponding mask bit is not set).