Function _mm512_maskz_fnmadd_ph

#[target_feature(enable = "avx512fp16")]
pub const fn _mm512_maskz_fnmadd_ph(k: __mmask32, a: __m512h, b: __m512h, c: __m512h) -> __m512h

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

Intel's documentation