Function _mm256_mask_div_pd

#[target_feature(enable = "avx512f", enable = "avx512vl")]
pub const fn _mm256_mask_div_pd(src: __m256d, k: __mmask8, a: __m256d, b: __m256d) -> __m256d

Divide packed double-precision (64-bit) floating-point elements in a by packed elements in b, and store the results in dst using writemask k (elements are copied from src when the corresponding mask bit is not set).

Intel's documentation