Function core::arch::x86::_mm256_mask_fcmadd_pch
source · pub unsafe fn _mm256_mask_fcmadd_pch(
a: __m256h,
k: __mmask8,
b: __m256h,
c: __m256h,
) -> __m256h
🔬This is a nightly-only experimental API. (
stdarch_x86_avx512_f16
#127213)Available on (x86 or x86-64) and target feature
avx512fp16,avx512vl
and x86 only.Expand description
Multiply packed complex numbers in a by the complex conjugates of packed complex numbers in b, accumulate
to the corresponding complex numbers in c, and store the results in dst using writemask k (the element is
copied from a when the corresponding mask bit is not set). Each complex number is composed of two adjacent
half-precision (16-bit) floating-point elements, which defines the complex number complex = vec.fp16[0] + i * vec.fp16[1]
,
or the complex conjugate conjugate = vec.fp16[0] - i * vec.fp16[1]
.