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## _mm256_mask_mullo_epi64

# Function _mm256_mask_mullo_epi64

1.89.0 (const: unstable) · Source

    pub fn _mm256_mask_mullo_epi64(
        src: __m256i,
        k: __mmask8,
        a: __m256i,
        b: __m256i,
    ) -> __m256i

Available on x86 and target feature `avx512dq` and target feature `avx512vl` and (x86 or x86-64) only.
Expand description

Multiply packed 64-bit integers in `a` and `b`, producing intermediate 128-bit integers, and store the low 64 bits of the intermediate integers in `dst` using writemask `k` (elements are copied from `src` if the corresponding bit is not set).

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