arch:: x86:: _mm512_mask_rsqrt14_pd
pub unsafe fn _mm512_mask_rsqrt14_pd(
) -> __m512d
Compute the approximate reciprocal square root of packed double-precision (64-bit) floating-point elements in a, and store the results in dst using writemask k (elements are copied from src when the corresponding mask bit is not set). The maximum relative error for this approximation is less than 2^-14.