244       auto &Copy = I.first->second;  in trackCopy()  local
245       if (!is_contained(Copy.DefRegs, Def))  in trackCopy()
246         Copy.DefRegs.push_back(Def);  in trackCopy()
247       Copy.LastSeenUseInCopy = MI;  in trackCopy()
419   bool eraseIfRedundant(MachineInstr &Copy, MCRegister Src, MCRegister Def);
422   bool isForwardableRegClassCopy(const MachineInstr &Copy,
424   bool isBackwardPropagatableRegClassCopy(const MachineInstr &Copy,
457     if (MachineInstr *Copy = Tracker.findCopyForUnit(Unit, *TRI)) {  in ReadRegister()  local
459         LLVM_DEBUG(dbgs() << "MCP: Copy is used - not dead: "; Copy->dump());  in ReadRegister()
460         MaybeDeadCopies.remove(Copy);  in ReadRegister()
462         CopyDbgUsers[Copy].insert(&Reader);  in ReadRegister()
477         if (MachineInstr *Copy = Tracker.findCopyForUnit(Unit, *TRI))  in readSuccessorLiveIns()  local
478           MaybeDeadCopies.remove(Copy);  in readSuccessorLiveIns()
509 bool MachineCopyPropagation::eraseIfRedundant(MachineInstr &Copy,  in eraseIfRedundant()  argument
518       Tracker.findAvailCopy(Copy, Def, *TRI, *TII, UseCopyInstr);  in eraseIfRedundant()
529   LLVM_DEBUG(dbgs() << "MCP: copy is a NOP, removing: "; Copy.dump());  in eraseIfRedundant()
534       isCopyInstr(Copy, *TII, UseCopyInstr);  in eraseIfRedundant()
540        make_range(PrevCopy->getIterator(), Copy.getIterator()))  in eraseIfRedundant()
549   Copy.eraseFromParent();  in eraseIfRedundant()
556     const MachineInstr &Copy, const MachineInstr &UseI, unsigned UseIdx) {  in isBackwardPropagatableRegClassCopy()  argument
558       isCopyInstr(Copy, *TII, UseCopyInstr);  in isBackwardPropagatableRegClassCopy()
573 bool MachineCopyPropagation::isForwardableRegClassCopy(const MachineInstr &Copy,  in isForwardableRegClassCopy()  argument
577       isCopyInstr(Copy, *TII, UseCopyInstr);  in isForwardableRegClassCopy()
700     MachineInstr *Copy = Tracker.findAvailCopy(MI, MOUse.getReg().asMCReg(),  in forwardUses()  local
702     if (!Copy)  in forwardUses()
706         isCopyInstr(*Copy, *TII, UseCopyInstr);  in forwardUses()
730     if (!isForwardableRegClassCopy(*Copy, MI, OpIdx))  in forwardUses()
754                       << "\n     in " << MI << "     from " << *Copy);  in forwardUses()
766          make_range(Copy->getIterator(), std::next(MI.getIterator())))  in forwardUses()
1011     MachineInstr *Copy = Tracker.findAvailBackwardCopy(  in propagateDefs()  local
1013     if (!Copy)  in propagateDefs()
1017         isCopyInstr(*Copy, *TII, UseCopyInstr);  in propagateDefs()
1024     if (!isBackwardPropagatableRegClassCopy(*Copy, MI, OpIdx))  in propagateDefs()
1035                       << MI << "     from " << *Copy);  in propagateDefs()
1041     MaybeDeadCopies.insert(Copy);  in propagateDefs()
1101             if (auto *Copy = Tracker.findCopyDefViaUnit(Unit, *TRI)) {  in BackwardCopyPropagateBlock()  local
1102               CopyDbgUsers[Copy].insert(&MI);  in BackwardCopyPropagateBlock()
1113   for (auto *Copy : MaybeDeadCopies) {  in BackwardCopyPropagateBlock()  local
1115         isCopyInstr(*Copy, *TII, UseCopyInstr);  in BackwardCopyPropagateBlock()
1118     SmallVector<MachineInstr *> MaybeDeadDbgUsers(CopyDbgUsers[Copy].begin(),  in BackwardCopyPropagateBlock()
1119                                                   CopyDbgUsers[Copy].end());  in BackwardCopyPropagateBlock()
1122     Copy->eraseFromParent();  in BackwardCopyPropagateBlock()