Function _mm_mask_expand_epi8

pub fn _mm_mask_expand_epi8(src: __m128i, k: u16, a: __m128i) -> __m128i

Load contiguous active 8-bit integers from a (those with their respective bit set in mask k), 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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