_mm_reduce_mul_ph
Classification
AVX-512, Arithmetic, CPUID Test: AVX512_FP16
Header File
immintrin.h
Synopsis
 _mm_reduce_mul_ph(__m128h a);
Description
Reduce the packed half-precision (16-bit) floating-point elements in "a" by multiplication. Returns the product of all elements in "a".
Operation
tmp := a
FOR i := 0 to 3
	tmp.fp16[i] := tmp.fp16[i] * tmp.fp16[i+4]
ENDFOR
FOR i := 0 to 1
	tmp.fp16[i] := tmp.fp16[i] * tmp.fp16[i+2]
ENDFOR
dst.fp16[0] := tmp.fp16[0] * tmp.fp16[1]