pub unsafe fn _mm512_maskz_extracti64x4_epi64<const IMM1: i32>(
    k: u8,
    a: __m512i,
) -> __m256i
🔬This is a nightly-only experimental API. (stdarch_x86_avx512)
Available on x86 only.
Expand description

Extract 256 bits (composed of 4 packed 64-bit integers) from a, selected with IMM1, and store the results in dst using zeromask k (elements are zeroed out when the corresponding mask bit is not set).

Intel’s documentation