Function _mm256_mask_broadcastss_ps 

pub fn _mm256_mask_broadcastss_ps(src: __m256, k: __mmask8, a: __m128) -> __m256

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

Broadcast the low single-precision (32-bit) floating-point element 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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