Function _mm512_mask_shuffle_epi8

#[target_feature(enable = "avx512bw")]
pub fn _mm512_mask_shuffle_epi8(src: __m512i, k: __mmask64, a: __m512i, b: __m512i) -> __m512i

Shuffle 8-bit integers in a within 128-bit lanes using the control in the corresponding 8-bit element of b, and store the results in dst using writemask k (elements are copied from src when the corresponding mask bit is not set).

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