Function _mm_maskz_compress_epi64 

pub fn _mm_maskz_compress_epi64(k: __mmask8, a: __m128i) -> __m128i

Available on x86-64 and target feature avx512f and target feature avx512vl only.

Contiguously store the active 64-bit integers in a (those with their respective bit set in zeromask k) to dst, and set the remaining elements to zero.

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