243       auto &Copy = I.first->second;  in trackCopy()  local
244       if (!is_contained(Copy.DefRegs, Def))  in trackCopy()
245         Copy.DefRegs.push_back(Def);  in trackCopy()
246       Copy.LastSeenUseInCopy = MI;  in trackCopy()
417   bool eraseIfRedundant(MachineInstr &Copy, MCRegister Src, MCRegister Def);
420   bool isForwardableRegClassCopy(const MachineInstr &Copy,
422   bool isBackwardPropagatableRegClassCopy(const MachineInstr &Copy,
455     if (MachineInstr *Copy = Tracker.findCopyForUnit(Unit, *TRI)) {  in ReadRegister()  local
457         LLVM_DEBUG(dbgs() << "MCP: Copy is used - not dead: "; Copy->dump());  in ReadRegister()
458         MaybeDeadCopies.remove(Copy);  in ReadRegister()
460         CopyDbgUsers[Copy].insert(&Reader);  in ReadRegister()
491 bool MachineCopyPropagation::eraseIfRedundant(MachineInstr &Copy,  in eraseIfRedundant()  argument
500       Tracker.findAvailCopy(Copy, Def, *TRI, *TII, UseCopyInstr);  in eraseIfRedundant()
511   LLVM_DEBUG(dbgs() << "MCP: copy is a NOP, removing: "; Copy.dump());  in eraseIfRedundant()
516       isCopyInstr(Copy, *TII, UseCopyInstr);  in eraseIfRedundant()
522        make_range(PrevCopy->getIterator(), Copy.getIterator()))  in eraseIfRedundant()
531   Copy.eraseFromParent();  in eraseIfRedundant()
538     const MachineInstr &Copy, const MachineInstr &UseI, unsigned UseIdx) {  in isBackwardPropagatableRegClassCopy()  argument
540       isCopyInstr(Copy, *TII, UseCopyInstr);  in isBackwardPropagatableRegClassCopy()
555 bool MachineCopyPropagation::isForwardableRegClassCopy(const MachineInstr &Copy,  in isForwardableRegClassCopy()  argument
559       isCopyInstr(Copy, *TII, UseCopyInstr);  in isForwardableRegClassCopy()
682     MachineInstr *Copy = Tracker.findAvailCopy(MI, MOUse.getReg().asMCReg(),  in forwardUses()  local
684     if (!Copy)  in forwardUses()
688         isCopyInstr(*Copy, *TII, UseCopyInstr);  in forwardUses()
712     if (!isForwardableRegClassCopy(*Copy, MI, OpIdx))  in forwardUses()
736                       << "\n     in " << MI << "     from " << *Copy);  in forwardUses()
748          make_range(Copy->getIterator(), std::next(MI.getIterator())))  in forwardUses()
987     MachineInstr *Copy = Tracker.findAvailBackwardCopy(  in propagateDefs()  local
989     if (!Copy)  in propagateDefs()
993         isCopyInstr(*Copy, *TII, UseCopyInstr);  in propagateDefs()
1000     if (!isBackwardPropagatableRegClassCopy(*Copy, MI, OpIdx))  in propagateDefs()
1011                       << MI << "     from " << *Copy);  in propagateDefs()
1017     MaybeDeadCopies.insert(Copy);  in propagateDefs()
1077             if (auto *Copy = Tracker.findCopyDefViaUnit(Unit, *TRI)) {  in BackwardCopyPropagateBlock()  local
1078               CopyDbgUsers[Copy].insert(&MI);  in BackwardCopyPropagateBlock()
1089   for (auto *Copy : MaybeDeadCopies) {  in BackwardCopyPropagateBlock()  local
1091         isCopyInstr(*Copy, *TII, UseCopyInstr);  in BackwardCopyPropagateBlock()
1094     SmallVector<MachineInstr *> MaybeDeadDbgUsers(CopyDbgUsers[Copy].begin(),  in BackwardCopyPropagateBlock()
1095                                                   CopyDbgUsers[Copy].end());  in BackwardCopyPropagateBlock()
1098     Copy->eraseFromParent();  in BackwardCopyPropagateBlock()