pub unsafe fn _mm512_mask_extracti64x2_epi64(
    src: __m128i,
    k: __mmask8,
    a: __m512i,
    const IMM8: i32,
) -> __m128i🔬This is a nightly-only experimental API. (
stdarch_x86_avx512 #111137)Available on (x86 or x86-64) and target feature 
avx512dq and x86-64 only.Expand description
Extracts 128 bits (composed of 2 packed 64-bit integers) from a, selected with IMM8, and stores the result in dst using writemask k (elements are copied from src if the corresponding bit is not set).