# Function core::arch::x86_64::_mm256_mask_set1_epi64

source ·

    pub unsafe fn _mm256_mask_set1_epi64(
        src: __m256i,
        k: __mmask8,
        a: i64
    ) -> __m256i

🔬This is a nightly-only experimental API. (`stdsimd` #48556)
Available on (x86 or x86-64) and target feature `avx512f,avx512vl` only.
Expand description

Broadcast 64-bit integer a to all elements of dst using writemask k (elements are copied from src when the corresponding mask bit is not set).

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