pub unsafe fn _mm256_mask_compressstoreu_epi64(
    base_addr: *mut i64,
    k: __mmask8,
    a: __m256i,
)Available on x86 and target feature 
avx512f and target feature avx512vl only.Expand description
Contiguously store the active 64-bit integers in a (those with their respective bit set in writemask k) to unaligned memory at base_addr.