Function `_mm512_mask_subs_epi8`

#[target_feature(enable = "avx512bw")]
pub const fn _mm512_mask_subs_epi8(src: __m512i, k: __mmask64, a: __m512i, b: __m512i) -> __m512i

Subtract packed signed 8-bit integers in b from packed 8-bit integers in a using saturation, and store the results in dst using writemask k (elements are copied from src when the corresponding mask bit is not set).

Intel's documentation