Function _mm256_maskz_expandloadu_pd
#[target_feature(enable = "avx512f", enable = "avx512vl")]
pub unsafe fn _mm256_maskz_expandloadu_pd(k: __mmask8, mem_addr: *const f64) -> __m256dLoad contiguous active double-precision (64-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).