Function _mm_maskz_adds_epi16 

pub fn _mm_maskz_adds_epi16(k: __mmask8, a: __m128i, b: __m128i) -> __m128i

Available on x86 and target feature avx512bw and target feature avx512vl only.

Add packed signed 16-bit integers in a and b using saturation, and store the results in dst using zeromask k (elements are zeroed out when the corresponding mask bit is not set).

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