pub fn _mm_mask_add_sd(src: __m128d, k: u8, a: __m128d, b: __m128d) -> __m128d🔬This is a nightly-only experimental API. (
stdarch_x86_avx512)Expand description
Add the lower double-precision (64-bit) floating-point element in a and b, store the result in the lower element of dst using writemask k (the element is copied from src when mask bit 0 is not set), and copy the upper element from a to the upper element of dst.