_mm256_maskz_permutexvar_epi32
Classification
AVX-512, Miscellaneous, CPUID Test: AVX512F
Header File
immintrin.h
Instruction
VPERMD ymm {z}, ymm, ymm
Synopsis
 _mm256_maskz_permutexvar_epi32(__mmask8 k, __m256i idx, __m256i a);
Description
Shuffle 32-bit integers in "a" across lanes using the corresponding index in "idx", and store the results in "dst" using zeromask "k" (elements are zeroed out when the corresponding mask bit is not set).
Operation
FOR j := 0 to 7
	i := j*32
	id := idx[i+2:i]*32
	IF k[j]
		dst[i+31:i] := a[id+31:id]
	ELSE
		dst[i+31:i] := 0
	FI
ENDFOR
dst[MAX:256] := 0