Function core::arch::x86::_mm512_mask_extractf64x4_pd

pub unsafe fn _mm512_mask_extractf64x4_pd(
    src: __m256d, 
    k: __mmask8, 
    a: __m512d, 
    const IMM8: i32
) -> __m256d

🔬 This is a nightly-only experimental API. (stdsimd #48556)

This is supported on x86 and target feature avx512f only.

Extract 256 bits (composed of 4 packed double-precision (64-bit) floating-point elements) from a, selected with imm8, and store the results in dst using writemask k (elements are copied from src when the corresponding mask bit is not set).

Intel’s documentation