239     static bool getSubregMask(const BitTracker::RegisterRef &RR,
246         BitTracker::RegisterRef &SL, BitTracker::RegisterRef &SH,
255         const BitTracker::RegisterRef &RR, MachineRegisterInfo &MRI);
256     static bool isTransparentCopy(const BitTracker::RegisterRef &RD,
257         const BitTracker::RegisterRef &RS, MachineRegisterInfo &MRI);
435 bool HexagonBitSimplify::getSubregMask(const BitTracker::RegisterRef &RR,  in getSubregMask()
463       BitTracker::RegisterRef &SL, BitTracker::RegisterRef &SH,  in parseRegSequence()
926       const BitTracker::RegisterRef &RR, MachineRegisterInfo &MRI) {  in getFinalVRegClass()
956 bool HexagonBitSimplify::isTransparentCopy(const BitTracker::RegisterRef &RD,  in isTransparentCopy()
957       const BitTracker::RegisterRef &RS, MachineRegisterInfo &MRI) {  in isTransparentCopy()
1095     bool usedBitsEqual(BitTracker::RegisterRef RD, BitTracker::RegisterRef RS);
1244       BitTracker::RegisterRef UR = *I;  in computeUsedBits()
1289     BitTracker::RegisterRef RR = MI.getOperand(OpN);  in computeUsedBits()
1306 bool RedundantInstrElimination::usedBitsEqual(BitTracker::RegisterRef RD,  in usedBitsEqual()
1307       BitTracker::RegisterRef RS) {  in usedBitsEqual()
1347     BitTracker::RegisterRef RD = MI->getOperand(0);  in processBlock()
1357       BitTracker::RegisterRef RS = Op;  in processBlock()
1541     bool findMatch(const BitTracker::RegisterRef &Inp,
1542         BitTracker::RegisterRef &Out, const RegisterSet &AVs);
1573 bool CopyGeneration::findMatch(const BitTracker::RegisterRef &Inp,  in findMatch()
1574       BitTracker::RegisterRef &Out, const RegisterSet &AVs) {  in findMatch()
1641       BitTracker::RegisterRef MR;  in processBlock()
1648         BT.put(BitTracker::RegisterRef(NewR), BT.get(MR));  in processBlock()
1659         BitTracker::RegisterRef TL = { R, SubLo };  in processBlock()
1660         BitTracker::RegisterRef TH = { R, SubHi };  in processBlock()
1661         BitTracker::RegisterRef ML, MH;  in processBlock()
1670           BT.put(BitTracker::RegisterRef(NewR), BT.get(R));  in processBlock()
1702   BitTracker::RegisterRef RD = MI.getOperand(0);  in propagateRegCopy()
1709       BitTracker::RegisterRef RS = MI.getOperand(1);  in propagateRegCopy()
1719       BitTracker::RegisterRef SL, SH;  in propagateRegCopy()
1734       BitTracker::RegisterRef RH = MI.getOperand(1), RL = MI.getOperand(2);  in propagateRegCopy()
1744       BitTracker::RegisterRef RS = MI.getOperand(SrcX);  in propagateRegCopy()
1784     struct RegHalf : public BitTracker::RegisterRef {
1790     bool validateReg(BitTracker::RegisterRef R, unsigned Opc, unsigned OpNum);
1793           BitTracker::RegisterRef &Rs, BitTracker::RegisterRef &Rt);
1798     bool genPackhl(MachineInstr *MI, BitTracker::RegisterRef RD,
1800     bool genExtractHalf(MachineInstr *MI, BitTracker::RegisterRef RD,
1802     bool genCombineHalf(MachineInstr *MI, BitTracker::RegisterRef RD,
1804     bool genExtractLow(MachineInstr *MI, BitTracker::RegisterRef RD,
1806     bool genBitSplit(MachineInstr *MI, BitTracker::RegisterRef RD,
1808     bool simplifyTstbit(MachineInstr *MI, BitTracker::RegisterRef RD,
1810     bool simplifyExtractLow(MachineInstr *MI, BitTracker::RegisterRef RD,
1812     bool simplifyRCmp0(MachineInstr *MI, BitTracker::RegisterRef RD);
1909 bool BitSimplification::validateReg(BitTracker::RegisterRef R, unsigned Opc,  in validateReg()
1919       const BitTracker::RegisterCell &RC, BitTracker::RegisterRef &Rs,  in matchPackhl()
1920       BitTracker::RegisterRef &Rt) {  in matchPackhl()
1955   BitTracker::RegisterRef RS = ValOp;  in genStoreUpperHalf()
2000   BitTracker::RegisterRef RS = MI->getOperand(2);  in genStoreImmediate()
2049       BitTracker::RegisterRef RD, const BitTracker::RegisterCell &RC) {  in genPackhl()
2053   BitTracker::RegisterRef Rs, Rt;  in genPackhl()
2069   BT.put(BitTracker::RegisterRef(NewR), RC);  in genPackhl()
2076       BitTracker::RegisterRef RD, const BitTracker::RegisterCell &RC) {  in genExtractHalf()
2108   BT.put(BitTracker::RegisterRef(NewR), RC);  in genExtractHalf()
2115       BitTracker::RegisterRef RD, const BitTracker::RegisterCell &RC) {  in genCombineHalf()
2140   BT.put(BitTracker::RegisterRef(NewR), RC);  in genCombineHalf()
2147       BitTracker::RegisterRef RD, const BitTracker::RegisterCell &RC) {  in genExtractLow()
2178     BitTracker::RegisterRef RS = Op;  in genExtractLow()
2200     BT.put(BitTracker::RegisterRef(NewR), RC);  in genExtractLow()
2207       BitTracker::RegisterRef RD, const BitTracker::RegisterCell &RC,  in genBitSplit()
2360       BitTracker::RegisterRef RD, const BitTracker::RegisterCell &RC) {  in simplifyTstbit()
2366   BitTracker::RegisterRef RS = MI->getOperand(1);  in simplifyTstbit()
2383     BitTracker::RegisterRef RR(V.RefI.Reg, 0);  in simplifyTstbit()
2420       BitTracker::RegisterRef RD, const BitTracker::RegisterCell &RC,  in simplifyExtractLow()
2603     BT.put(BitTracker::RegisterRef(NewR), RC);  in simplifyExtractLow()
2612       BitTracker::RegisterRef RD) {  in simplifyRCmp0()
2632   BitTracker::RegisterRef SR = MI->getOperand(1);  in simplifyRCmp0()
2658     BT.put(BitTracker::RegisterRef(NewR), NewRC);  in simplifyRCmp0()
2724       BT.put(BitTracker::RegisterRef(NewR), NewRC);  in simplifyRCmp0()
2761     BitTracker::RegisterRef RD = Op0;  in processBlock()
2948       BitTracker::RegisterRef Inp, Out;
2955       BitTracker::RegisterRef LR, PR; // Loop Register, Preheader Register