pub unsafe fn _mm_mask_rsqrt14_pd(src: __m128d, k: u8, a: __m128d) -> __m128d🔬This is a nightly-only experimental API. (
stdarch_x86_avx512)Available on x86 only.
Expand description
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.