Function _mm512_maskz_broadcast_f64x4 

pub fn _mm512_maskz_broadcast_f64x4(k: __mmask8, a: __m256d) -> __m512d

Available on x86-64 and target feature avx512f only.

Broadcast the 4 packed double-precision (64-bit) floating-point elements from a to all elements of dst using zeromask k (elements are zeroed out when the corresponding mask bit is not set).

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