pub unsafe fn _mm_mask3_fnmadd_sd(
a: __m128d,
b: __m128d,
c: __m128d,
k: u8,
) -> __m128d
🔬This is a nightly-only experimental API. (
stdarch_x86_avx512
#111137)Available on x86-64 only.
Expand description
Multiply the lower double-precision (64-bit) floating-point elements in a and b, and add the negated intermediate result to the lower element in c. Store the result in the lower element of dst using writemask k (the element is copied from c when mask bit 0 is not set), and copy the upper element from c to the upper element of dst.