Function _mm_maskz_fmsub_sd
#[target_feature(enable = "avx512f")]
pub const fn _mm_maskz_fmsub_sd(k: __mmask8, a: __m128d, b: __m128d, c: __m128d) -> __m128dMultiply the lower double-precision (64-bit) floating-point elements in a and b, and subtract the lower element in c from the intermediate result. Store the result in the lower element of dst using zeromask k (the element is zeroed out when mask bit 0 is not set), and copy the upper element from a to the upper element of dst.