Function _mm512_mask_cvtph_pd

#[target_feature(enable = "avx512fp16")]
pub fn _mm512_mask_cvtph_pd(src: __m512d, k: __mmask8, a: __m128h) -> __m512d

Convert packed half-precision (16-bit) floating-point elements in a to packed double-precision (64-bit) floating-point elements, and store the results in dst using writemask k (elements are copied from src to dst when the corresponding mask bit is not set).

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