_mm_maskz_permutexvar_epi16
Classification
AVX-512, Miscellaneous, CPUID Test: AVX512BW
Header File
Instruction
VPERMW xmm {z}, xmm, xmm
Synopsis
_mm_maskz_permutexvar_epi16(__mmask8 k, __m128i idx, __m128i a);
Description
Shuffle 16-bit integers in "a" 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*16
id := idx[i+2:i]*16
IF k[j]
dst[i+15:i] := a[id+15:id]
ELSE
dst[i+15:i] := 0
FI
ENDFOR
dst[MAX:128] := 0