_mm_mask_expand_epi16
Classification
AVX-512, Swizzle, CPUID Test: AVX512_VBMI2
Header File
immintrin.h
Instruction
VPEXPANDW xmm {k}, xmm
Synopsis
 _mm_mask_expand_epi16(__m128i src, __mmask8 k, __m128i a);
Description
Load contiguous active 16-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*16
	IF k[j]
		dst[i+15:i] := a[m+15:m]
		m := m + 16
	ELSE
		dst[i+15:i] := src[i+15:i]
	FI
ENDFOR
dst[MAX:128] := 0