Function `_mm512_mask_broadcast_f64x4`

#[target_feature(enable = "avx512f")]
pub const fn _mm512_mask_broadcast_f64x4(src: __m512d, k: __mmask8, a: __m256d) -> __m512d

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

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