_mm256_mask_expand_epi32
Classification
AVX-512, Miscellaneous, CPUID Test: AVX512F
Header File
immintrin.h
Instruction
VPEXPANDD ymm {k}, ymm
Synopsis
 _mm256_mask_expand_epi32(__m256i src, __mmask8 k, __m256i a);
Description
Load contiguous active 32-bit integers from "a" (those with their respective bit set in mask "k"), and store the results in "dst" using writemask "k" (elements are copied from "src" when the corresponding mask bit is not set).
Operation
m := 0
FOR j := 0 to 7
	i := j*32
	IF k[j]
		dst[i+31:i] := a[m+31:m]
		m := m + 32
	ELSE
		dst[i+31:i] := src[i+31:i]
	FI
ENDFOR
dst[MAX:256] := 0