Function _mm256_maskz_broadcast_i64x2 

pub fn _mm256_maskz_broadcast_i64x2(k: __mmask8, a: __m128i) -> __m256i

Available on x86 and target feature avx512dq and target feature avx512vl only.

Broadcasts the 2 packed 64-bit integers from a to all elements of dst using zeromask k (elements are zeroed out if the corresponding bit is not set).

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