Function _mm512_maskz_expandloadu_ps

#[target_feature(enable = "avx512f")]
pub unsafe fn _mm512_maskz_expandloadu_ps(k: __mmask16, mem_addr: *const f32) -> __m512

Load contiguous active single-precision (32-bit) floating-point elements from unaligned memory at mem_addr (those with their respective bit set in mask k), and store the results in dst using zeromask k (elements are zeroed out when the corresponding mask bit is not set).

Intel's documentation