## _mm_maskz_fmsub_sd

# Function _mm_maskz_fmsub_sd

1.89.0 (const: unstable) · Source

    pub fn _mm_maskz_fmsub_sd(
        k: __mmask8,
        a: __m128d,
        b: __m128d,
        c: __m128d,
    ) -> __m128d

Available on x86 and target feature `avx512f` only.
Expand description

Multiply 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.

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