Function _mm256_mask_inserti64x2

pub unsafe fn _mm256_mask_inserti64x2<const IMM8: i32>(
    src: __m256i,
    k: u8,
    a: __m256i,
    b: __m128i,
) -> __m256i

🔬This is a nightly-only experimental API. (stdarch_x86_avx512)

Available on x86 only.

Copy a to tmp, then insert 128 bits (composed of 2 packed 64-bit integers) from b into tmp at the location specified by IMM8, and copy tmp to dst using writemask k (elements are copied from src if the corresponding bit is not set).

Intel’s Documentation