Function _mm256_maskz_sra_epi16

#[target_feature(enable = "avx512bw", enable = "avx512vl")]
pub fn _mm256_maskz_sra_epi16(k: __mmask16, a: __m256i, count: __m128i) -> __m256i

Shift packed 16-bit integers in a right by 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).

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