Function `_mm512_mask_broadcastb_epi8`

#[target_feature(enable = "avx512bw")]
pub const fn _mm512_mask_broadcastb_epi8(src: __m512i, k: __mmask64, a: __m128i) -> __m512i

Broadcast the low packed 8-bit integer from a to all elements of dst using writemask k (elements are copied from src when the corresponding mask bit is not set).

Intel's documentation