_mm512_mask_permutevar_epi32
Classification
AVX-512, Swizzle, CPUID Test: AVX512F
Header File
immintrin.h
Instruction
VPERMD zmm {k}, zmm, zmm
Synopsis
 _mm512_mask_permutevar_epi32(__m512i src, __mmask16 k, __m512i idx, __m512i a);
Description
Shuffle 32-bit integers in "a" across lanes using the corresponding index in "idx", and store the results in "dst" using writemask "k" (elements are copied from "src" when the corresponding mask bit is not set). Note that this intrinsic shuffles across 128-bit lanes, unlike past intrinsics that use the "permutevar" name. This intrinsic is identical to "_mm512_mask_permutexvar_epi32", and it is recommended that you use that intrinsic name.
Operation
FOR j := 0 to 15
	i := j*32
	id := idx[i+3:i]*32
	IF k[j]
		dst[i+31:i] := a[id+31:id]
	ELSE
		dst[i+31:i] := src[i+31:i]
	FI
ENDFOR
dst[MAX:512] := 0