_mm256_mask_permutexvar_epi16
Classification
AVX-512, Miscellaneous, CPUID Test: AVX512BW
Header File
immintrin.h
Instruction
VPERMW ymm {k}, ymm, ymm
Synopsis
 _mm256_mask_permutexvar_epi16(__m256i src, __mmask16 k, __m256i idx, __m256i a);
Description
Shuffle 16-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).
Operation
FOR j := 0 to 15
	i := j*16
	id := idx[i+3:i]*16
	IF k[j]
		dst[i+15:i] := a[id+15:id]
	ELSE
		dst[i+15:i] := src[i+15:i]
	FI
ENDFOR
dst[MAX:256] := 0