_mm256_permutexvar_epi8
Classification
AVX-512, Swizzle, CPUID Test: AVX512_VBMI
Header File
immintrin.h
Instruction
VPERMB ymm, ymm, ymm
Synopsis
 _mm256_permutexvar_epi8(__m256i idx, __m256i a);
Description
Shuffle 8-bit integers in "a" across lanes using the corresponding index in "idx", and store the results in "dst".
Operation
FOR j := 0 to 31
	i := j*8
	id := idx[i+4:i]*8
	dst[i+7:i] := a[id+7:id]
ENDFOR
dst[MAX:256] := 0