pub fn _mm256_mask_or_pd(
    src: __m256d,
    k: __mmask8,
    a: __m256d,
    b: __m256d,
) -> __m256dAvailable on x86 and target feature 
avx512dq and target feature avx512vl only.Expand description
Compute the bitwise OR of packed double-precision (64-bit) floating point numbers in a and b and store the results in dst using writemask k (elements are copied from src if the corresponding bit is not set).