Function _mm512_mask_fmsub_ph

#[target_feature(enable = "avx512fp16")]
pub const fn _mm512_mask_fmsub_ph(a: __m512h, k: __mmask32, b: __m512h, c: __m512h) -> __m512h

Multiply packed half-precision (16-bit) floating-point elements in a and b, subtract packed elements in c from the intermediate result, and store the results in dst using writemask k (the element is copied from a when the corresponding mask bit is not set).

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