Function _mm256_maskz_avg_epu8 

pub fn _mm256_maskz_avg_epu8(k: __mmask32, a: __m256i, b: __m256i) -> __m256i

Available on x86 and target feature avx512bw and target feature avx512vl only.

Average packed unsigned 8-bit integers in a and b, 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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