Function surge_halfrate::imports::_mm_maskz_fnmadd_sd
source · [−]🔬 This is a nightly-only experimental API. (
stdsimd
)This is supported with target feature
avx512f
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 zeromask k (the element is zeroed out when mask bit 0 is not set), and copy the upper element from a to the upper element of dst.