2282   unsigned M0 = N->getMaskElt(0) / 4;  in isXXINSERTWMask()  local
2292   if ((M0 > 3 && M1 == 1 && M2 == 2 && M3 == 3) ||  in isXXINSERTWMask()
2293       (M0 < 4 && M1 == 5 && M2 == 6 && M3 == 7)) {  in isXXINSERTWMask()
2294     ShiftElts = IsLE ? LittleEndianShifts[M0 & 0x3] : BigEndianShifts[M0 & 0x3];  in isXXINSERTWMask()
2296     Swap = M0 < 4;  in isXXINSERTWMask()
2300   if ((M1 > 3 && M0 == 0 && M2 == 2 && M3 == 3) ||  in isXXINSERTWMask()
2301       (M1 < 4 && M0 == 4 && M2 == 6 && M3 == 7)) {  in isXXINSERTWMask()
2308   if ((M2 > 3 && M0 == 0 && M1 == 1 && M3 == 3) ||  in isXXINSERTWMask()
2309       (M2 < 4 && M0 == 4 && M1 == 5 && M3 == 7)) {  in isXXINSERTWMask()
2316   if ((M3 > 3 && M0 == 0 && M1 == 1 && M2 == 2) ||  in isXXINSERTWMask()
2317       (M3 < 4 && M0 == 4 && M1 == 5 && M2 == 6)) {  in isXXINSERTWMask()
2330     if (M0 == XXINSERTWSrcElem && M1 == 1 && M2 == 2 && M3 == 3) {  in isXXINSERTWMask()
2334     if (M0 == 0 && M1 == XXINSERTWSrcElem && M2 == 2 && M3 == 3) {  in isXXINSERTWMask()
2338     if (M0 == 0 && M1 == 1 && M2 == XXINSERTWSrcElem && M3 == 3) {  in isXXINSERTWMask()
2342     if (M0 == 0 && M1 == 1 && M2 == 2 && M3 == XXINSERTWSrcElem) {  in isXXINSERTWMask()
2359   unsigned M0 = N->getMaskElt(0) / 4;  in isXXSLDWIShuffleMask()  local
2367     assert(M0 < 4 && "Indexing into an undef vector?");  in isXXSLDWIShuffleMask()
2368     if (M1 != (M0 + 1) % 4 || M2 != (M1 + 1) % 4 || M3 != (M2 + 1) % 4)  in isXXSLDWIShuffleMask()
2371     ShiftElts = IsLE ? (4 - M0) % 4 : M0;  in isXXSLDWIShuffleMask()
2377   if (M1 != (M0 + 1) % 8 || M2 != (M1 + 1) % 8 || M3 != (M2 + 1) % 8)  in isXXSLDWIShuffleMask()
2381     if (M0 == 0 || M0 == 7 || M0 == 6 || M0 == 5) {  in isXXSLDWIShuffleMask()
2386       ShiftElts = (8 - M0) % 8;  in isXXSLDWIShuffleMask()
2387     } else if (M0 == 4 || M0 == 3 || M0 == 2 || M0 == 1) {  in isXXSLDWIShuffleMask()
2392       ShiftElts = (4 - M0) % 4;  in isXXSLDWIShuffleMask()
2397     if (M0 == 0 || M0 == 1 || M0 == 2 || M0 == 3) {  in isXXSLDWIShuffleMask()
2401       ShiftElts = M0;  in isXXSLDWIShuffleMask()
2402     } else if (M0 == 4 || M0 == 5 || M0 == 6 || M0 == 7) {  in isXXSLDWIShuffleMask()
2406       ShiftElts = M0 - 4;  in isXXSLDWIShuffleMask()
2458   unsigned M0 = N->getMaskElt(0) / 8;  in isXXPERMDIShuffleMask()  local
2460   assert(((M0 | M1) < 4) && "A mask element out of bounds?");  in isXXPERMDIShuffleMask()
2465     if ((M0 | M1) < 2) {  in isXXPERMDIShuffleMask()
2466       DM = IsLE ? (((~M1) & 1) << 1) + ((~M0) & 1) : (M0 << 1) + (M1 & 1);  in isXXPERMDIShuffleMask()
2474     if (M0 > 1 && M1 < 2) {  in isXXPERMDIShuffleMask()
2476     } else if (M0 < 2 && M1 > 1) {  in isXXPERMDIShuffleMask()
2477       M0 = (M0 + 2) % 4;  in isXXPERMDIShuffleMask()
2484     DM = (((~M1) & 1) << 1) + ((~M0) & 1);  in isXXPERMDIShuffleMask()
2487     if (M0 < 2 && M1 > 1) {  in isXXPERMDIShuffleMask()
2489     } else if (M0 > 1 && M1 < 2) {  in isXXPERMDIShuffleMask()
2490       M0 = (M0 + 2) % 4;  in isXXPERMDIShuffleMask()
2497     DM = (M0 << 1) + (M1 & 1);  in isXXPERMDIShuffleMask()