# Function core::arch::x86::_mm256_mask_shuffle_f64x2

source ·

    pub unsafe fn _mm256_mask_shuffle_f64x2(
        src: __m256d,
        k: __mmask8,
        a: __m256d,
        b: __m256d,
        const MASK: i32
    ) -> __m256d

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

Shuffle 128-bits (composed of 2 double-precision (64-bit) floating-point elements) selected by imm8 from a and b, and store the results in dst using writemask k (elements are copied from src when the corresponding mask bit is not set).

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