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## _mm256_mask3_fnmadd_pd

# Function _mm256_mask3_fnmadd_pd

1.89.0 (const: unstable) · Source

    pub fn _mm256_mask3_fnmadd_pd(
        a: __m256d,
        b: __m256d,
        c: __m256d,
        k: __mmask8,
    ) -> __m256d

Available on x86-64 and target feature `avx512f` and target feature `avx512vl` only.
Expand description

Multiply packed double-precision (64-bit) floating-point elements in a and b, add the negated intermediate result to packed elements in c, and store the results in dst using writemask k (elements are copied from c when the corresponding mask bit is not set).

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