Function _mm512_cmpneq_epu8_mask 

pub fn _mm512_cmpneq_epu8_mask(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 not-equal, and store the results in mask vector k.

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