Function _mm512_mask_cmplt_epu8_mask 

pub fn _mm512_mask_cmplt_epu8_mask(
    k1: __mmask64,
    a: __m512i,
    b: __m512i,
) -> __mmask64

Available on x86-64 and target feature avx512bw only.

Compare packed unsigned 8-bit integers in a and b for less-than, and store the results in mask vector k using zeromask k1 (elements are zeroed out when the corresponding mask bit is not set).

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