_mm_permutex2var_epi16
Classification
AVX-512, Miscellaneous, CPUID Test: AVX512BW
Header File
Instruction
VPERMI2W xmm, xmm, xmm
Synopsis
_mm_permutex2var_epi16(__m128i a, __m128i idx, __m128i b);
Description
Shuffle 16-bit integers in "a" and "b" using the corresponding selector and index in "idx", and store the results in "dst".
Operation
FOR j := 0 to 7
i := j*16
off := 16*idx[i+2:i]
dst[i+15:i] := idx[i+3] ? b[off+15:off] : a[off+15:off]
ENDFOR
dst[MAX:128] := 0