Function _mm512_mask_cvtpbh_ps

#[target_feature(enable = "avx512bf16", enable = "avx512f")]
pub fn _mm512_mask_cvtpbh_ps(src: __m512, k: __mmask16, a: __m256bh) -> __m512

Converts packed BF16 (16-bit) floating-point elements in a to packed single-precision (32-bit) floating-point elements, and store the results in dst using writemask k (elements are copied from src when the corresponding mask bit is not set).

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