lib/CodeGen/TwoAddressInstructionPass.cpp

125   bool isCopyToReg(MachineInstr &MI, Register &SrcReg, Register &DstReg,
135                                        bool &IsCopy, Register &DstReg,
176   void scanUses(Register DstReg);
290                                             Register &DstReg, bool &IsSrcPhys,
293   DstReg = 0;
295     DstReg = MI.getOperand(0).getReg();
298     DstReg = MI.getOperand(0).getReg();
305   IsDstPhys = DstReg.isPhysical();
387     Register SrcReg, DstReg;
390     if (!isCopyToReg(*DefMI, SrcReg, DstReg, IsSrcPhys, IsDstPhys))
398 static bool isTwoAddrUse(MachineInstr &MI, Register Reg, Register &DstReg) {
405       DstReg = MI.getOperand(ti).getReg();
415     Register Reg, MachineBasicBlock *MBB, bool &IsCopy, Register &DstReg,
431   if (isCopyToReg(UseMI, SrcReg, DstReg, IsSrcPhys, IsDstPhys)) {
436   if (isTwoAddrUse(UseMI, Reg, DstReg)) {
437     IsDstPhys = DstReg.isPhysical();
446           isTwoAddrUse(UseMI, MO.getReg(), DstReg)) {
447         IsDstPhys = DstReg.isPhysical();
755 void TwoAddressInstructionPass::scanUses(Register DstReg) {
760   Register Reg = DstReg;
790     bool isNew = DstRegMap.insert(std::make_pair(DstReg, ToReg)).second;
792       assert(DstRegMap[DstReg] == ToReg && "Can't map to two dst registers!");
813   Register SrcReg, DstReg;
814   if (!isCopyToReg(*MI, SrcReg, DstReg, IsSrcPhys, IsDstPhys))
818     DstRegMap.insert(std::make_pair(SrcReg, DstReg));
820     bool isNew = SrcRegMap.insert(std::make_pair(DstReg, SrcReg)).second;
822       assert(SrcRegMap[DstReg] == SrcReg &&
825     scanUses(DstReg);
873   Register DstReg;
874   if (isTwoAddrUse(*KillMI, Reg, DstReg))
1056   Register DstReg;
1057   if (isTwoAddrUse(*KillMI, Reg, DstReg))
1451     Register DstReg = DstMO.getReg();
1453     if (SrcReg == DstReg)
1460       // Constrain the DstReg register class if required.
1461       if (DstReg.isVirtual()) {
1463         MRI->constrainRegClass(DstReg, RC);
1465       SrcMO.setReg(DstReg);
1832           Register DstReg = mi->getOperand(DstIdx).getReg();
1833           if (SrcReg != DstReg &&
1929   Register DstReg = MI.getOperand(0).getReg();
1965                                .addReg(DstReg, RegState::Define, SubIdx)
1996       if (DefIsPartial && LIS->hasInterval(DstReg) &&
1997           MRI->shouldTrackSubRegLiveness(DstReg))
1998         LIS->removeInterval(DstReg);