Function _mm_mask_compressstoreu_epi32 

pub unsafe fn _mm_mask_compressstoreu_epi32(
    base_addr: *mut i32,
    k: __mmask8,
    a: __m128i,
)

Available on x86 and target feature avx512f and target feature avx512vl only.

Contiguously store the active 32-bit integers in a (those with their respective bit set in writemask k) to unaligned memory at base_addr.

Intel’s documentation