239     bool joinCopy(MachineInstr *CopyMI, bool &Again,
276     bool adjustCopiesBackFrom(const CoalescerPair &CP, MachineInstr *CopyMI);
292                                                   MachineInstr *CopyMI);
295     bool removePartialRedundancy(const CoalescerPair &CP, MachineInstr &CopyMI);
299     bool reMaterializeTrivialDef(const CoalescerPair &CP, MachineInstr *CopyMI,
325     MachineInstr *eliminateUndefCopy(MachineInstr *CopyMI);
616                                              MachineInstr *CopyMI) {  in adjustCopiesBackFrom()  argument
624   SlotIndex CopyIdx = LIS->getInstructionIndex(*CopyMI).getRegSlot();  in adjustCopiesBackFrom()
675   if (!ValSEndInst || ValSEndInst->getParent() != CopyMI->getParent())  in adjustCopiesBackFrom()
733   CopyMI->substituteRegister(IntA.reg(), IntB.reg(), 0, *TRI);  in adjustCopiesBackFrom()
806                                             MachineInstr *CopyMI) {  in removeCopyByCommutingDef()  argument
836   SlotIndex CopyIdx = LIS->getInstructionIndex(*CopyMI).getRegSlot();  in removeCopyByCommutingDef()
947     if (UseMI == CopyMI)  in removeCopyByCommutingDef()
1089                                                 MachineInstr &CopyMI) {  in removePartialRedundancy()  argument
1091   if (!CopyMI.isFullCopy())  in removePartialRedundancy()
1094   MachineBasicBlock &MBB = *CopyMI.getParent();  in removePartialRedundancy()
1109   SlotIndex CopyIdx = LIS->getInstructionIndex(CopyMI).getRegSlot(true);  in removePartialRedundancy()
1185                       << printMBBReference(*CopyLeftBB) << '\t' << CopyMI);  in removePartialRedundancy()
1188     MachineInstr *NewCopyMI = BuildMI(*CopyLeftBB, InsPos, CopyMI.getDebugLoc(),  in removePartialRedundancy()
1203                       << printMBBReference(MBB) << '\t' << CopyMI);  in removePartialRedundancy()
1206   const bool IsUndefCopy = CopyMI.getOperand(1).isUndef();  in removePartialRedundancy()
1213   deleteInstr(&CopyMI);  in removePartialRedundancy()
1288                                                 MachineInstr *CopyMI,  in reMaterializeTrivialDef()  argument
1299   SlotIndex CopyIdx = LIS->getInstructionIndex(*CopyMI);  in reMaterializeTrivialDef()
1329   MachineOperand &DstOperand = CopyMI->getOperand(0);  in reMaterializeTrivialDef()
1369   DebugLoc DL = CopyMI->getDebugLoc();  in reMaterializeTrivialDef()
1370   MachineBasicBlock *MBB = CopyMI->getParent();  in reMaterializeTrivialDef()
1372     std::next(MachineBasicBlock::iterator(CopyMI));  in reMaterializeTrivialDef()
1373   Edit.rematerializeAt(*MBB, MII, DstReg, RM, *TRI, false, SrcIdx, CopyMI);  in reMaterializeTrivialDef()
1413   ImplicitOps.reserve(CopyMI->getNumOperands() -  in reMaterializeTrivialDef()
1414                       CopyMI->getDesc().getNumOperands());  in reMaterializeTrivialDef()
1415   for (unsigned I = CopyMI->getDesc().getNumOperands(),  in reMaterializeTrivialDef()
1416                 E = CopyMI->getNumOperands();  in reMaterializeTrivialDef()
1418     MachineOperand &MO = CopyMI->getOperand(I);  in reMaterializeTrivialDef()
1428   CopyMI->eraseFromParent();  in reMaterializeTrivialDef()
1429   ErasedInstrs.insert(CopyMI);  in reMaterializeTrivialDef()
1669 MachineInstr *RegisterCoalescer::eliminateUndefCopy(MachineInstr *CopyMI) {  in eliminateUndefCopy()  argument
1683   if(!isMoveInstr(*TRI, CopyMI, SrcReg, DstReg, SrcSubIdx, DstSubIdx))  in eliminateUndefCopy()
1686   SlotIndex Idx = LIS->getInstructionIndex(*CopyMI);  in eliminateUndefCopy()
1711     for (unsigned i = CopyMI->getNumOperands(); i != 0; --i) {  in eliminateUndefCopy()
1712       MachineOperand &MO = CopyMI->getOperand(i-1);  in eliminateUndefCopy()
1715           CopyMI->removeOperand(i - 1);  in eliminateUndefCopy()
1718                CopyMI->getOpcode() == TargetOpcode::SUBREG_TO_REG);  in eliminateUndefCopy()
1719         CopyMI->removeOperand(i-1);  in eliminateUndefCopy()
1723     CopyMI->setDesc(TII->get(TargetOpcode::IMPLICIT_DEF));  in eliminateUndefCopy()
1726     return CopyMI;  in eliminateUndefCopy()
1782   for (MachineOperand &MO : CopyMI->all_defs())  in eliminateUndefCopy()
1787   return CopyMI;  in eliminateUndefCopy()
1969     MachineInstr *CopyMI, bool &Again,  in joinCopy()  argument
1972   LLVM_DEBUG(dbgs() << LIS->getInstructionIndex(*CopyMI) << '\t' << *CopyMI);  in joinCopy()
1975   if (!CP.setRegisters(CopyMI)) {  in joinCopy()
1989     if (!TRI->shouldCoalesce(CopyMI, SrcRC, SrcIdx, DstRC, DstIdx,  in joinCopy()
1999   if (!CP.isPhys() && CopyMI->allDefsAreDead()) {  in joinCopy()
2001     DeadDefs.push_back(CopyMI);  in joinCopy()
2009     if (MachineInstr *UndefMI = eliminateUndefCopy(CopyMI)) {  in joinCopy()
2012       deleteInstr(CopyMI);  in joinCopy()
2023     const SlotIndex CopyIdx = LIS->getInstructionIndex(*CopyMI);  in joinCopy()
2032       MachineBasicBlock *MBB = CopyMI->getParent();  in joinCopy()
2060     deleteInstr(CopyMI);  in joinCopy()
2073       if (reMaterializeTrivialDef(CP, CopyMI, IsDefCopy))  in joinCopy()
2112     if (reMaterializeTrivialDef(CP, CopyMI, IsDefCopy))  in joinCopy()
2118       bool Changed = adjustCopiesBackFrom(CP, CopyMI);  in joinCopy()
2121         std::tie(Changed, Shrink) = removeCopyByCommutingDef(CP, CopyMI);  in joinCopy()
2123         deleteInstr(CopyMI);  in joinCopy()
2138       if (removePartialRedundancy(CP, *CopyMI))  in joinCopy()
2162   if (ErasedInstrs.erase(CopyMI))  in joinCopy()
2164     CurrentErasedInstrs.insert(CopyMI);  in joinCopy()
2265   MachineInstr *CopyMI;  in joinReservedPhysReg()  local
2274     CopyMI = MRI->getVRegDef(SrcReg);  in joinReservedPhysReg()
2275     deleteInstr(CopyMI);  in joinReservedPhysReg()
2295     CopyMI = &*MRI->use_instr_nodbg_begin(SrcReg);  in joinReservedPhysReg()
2296     SlotIndex CopyRegIdx = LIS->getInstructionIndex(*CopyMI).getRegSlot();  in joinReservedPhysReg()
2320     deleteInstr(CopyMI);  in joinReservedPhysReg()