pub unsafe fn _mm_mask_expandloadu_epi64(
    src: __m128i, 
    k: __mmask8, 
    mem_addr: *const i64
) -> __m128iAvailable on x86 and target feature 
avx512f,avx512vl,avx,sse only.Expand description
Load contiguous active 64-bit integers from unaligned memory at mem_addr (those with their respective bit set in mask k), and store the results in dst using writemask k (elements are copied from src when the corresponding mask bit is not set).