pub unsafe fn _mm512_mask_cvtsepi64_epi32(
    src: __m256i,
    k: u8,
    a: __m512i
) -> __m256i
🔬 This is a nightly-only experimental API. (stdsimd)
This is supported on x86-64 and target feature avx512f only.
Expand description

Convert packed signed 64-bit integers in a to packed 32-bit integers with signed saturation, 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