Function core::arch::x86::_mm_mask_fnmadd_sh
source · pub unsafe fn _mm_mask_fnmadd_sh(
a: __m128h,
k: __mmask8,
b: __m128h,
c: __m128h,
) -> __m128h
🔬This is a nightly-only experimental API. (
stdarch_x86_avx512_f16
#127213)Available on (x86 or x86-64) and target feature
avx512fp16
and x86 only.Expand description
Multiply the lower half-precision (16-bit) floating-point elements in a and b, and subtract the intermediate result from the lower element in c. Store the result in the lower element of dst using writemask k (the element is copied from a when the mask bit 0 is not set), and copy the upper 7 packed elements from a to the upper elements of dst.