566     MachineOperand &MOUse = MI.getOperand(OpIdx);  in forwardUses()  local
572     if (!MOUse.isReg() || MOUse.isTied() || MOUse.isUndef() || MOUse.isDef() ||  in forwardUses()
573         MOUse.isImplicit())  in forwardUses()
576     if (!MOUse.getReg())  in forwardUses()
582     if (!MOUse.isRenamable())  in forwardUses()
585     MachineInstr *Copy = Tracker.findAvailCopy(MI, MOUse.getReg().asMCReg(),  in forwardUses()
597     if (MOUse.getReg() != CopyDstReg) {  in forwardUses()
611     if (hasImplicitOverlap(MI, MOUse))  in forwardUses()
630     LLVM_DEBUG(dbgs() << "MCP: Replacing " << printReg(MOUse.getReg(), TRI)  in forwardUses()
634     MOUse.setReg(CopySrcReg);  in forwardUses()
636       MOUse.setIsRenamable(false);  in forwardUses()
637     MOUse.setIsUndef(CopySrc.isUndef());  in forwardUses()