pub unsafe fn _mm256_mask_store_epi64(mem_addr: *mut i64, mask: u8, a: __m256i)
🔬 This is a nightly-only experimental API. (stdsimd)
This is supported on x86-64 and target feature avx512f,avx512vl,avx only.
Expand description

Store packed 64-bit integers from a into memory using writemask k. mem_addr must be aligned on a 32-byte boundary or a general-protection exception may be generated.

Intel’s documentation