Function _mm256_mask_sub_epi8

#[target_feature(enable = "avx512bw", enable = "avx512vl")]
pub const fn _mm256_mask_sub_epi8(src: __m256i, k: __mmask32, a: __m256i, b: __m256i) -> __m256i

Subtract packed 8-bit integers in b from packed 8-bit integers in a, 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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