pub unsafe fn _mm256_maskz_inserti32x4(
    k: __mmask8,
    a: __m256i,
    b: __m128i,
    const IMM8: i32
) -> __m256i
🔬This is a nightly-only experimental API. (stdsimd #48556)
Available on (x86 or x86-64) and target feature avx512f,avx512vl only.
Expand description

Copy a to tmp, then insert 128 bits (composed of 4 packed 32-bit integers) from b into tmp at the location specified by imm8. Store tmp to dst using zeromask k (elements are zeroed out when the corresponding mask bit is not set).

Intel’s documentation