681     MachineOperand &MOUse = MI.getOperand(OpIdx);  in forwardUses()  local
687     if (!MOUse.isReg() || MOUse.isTied() || MOUse.isUndef() || MOUse.isDef() ||  in forwardUses()
688         MOUse.isImplicit())  in forwardUses()
691     if (!MOUse.getReg())  in forwardUses()
697     if (!MOUse.isRenamable())  in forwardUses()
700     MachineInstr *Copy = Tracker.findAvailCopy(MI, MOUse.getReg().asMCReg(),  in forwardUses()
714     if (MOUse.getReg() != CopyDstReg) {  in forwardUses()
715       unsigned SubRegIdx = TRI->getSubRegIndex(CopyDstReg, MOUse.getReg());  in forwardUses()
733     if (hasImplicitOverlap(MI, MOUse))  in forwardUses()
752     LLVM_DEBUG(dbgs() << "MCP: Replacing " << printReg(MOUse.getReg(), TRI)  in forwardUses()
756     MOUse.setReg(ForwardedReg);  in forwardUses()
759       MOUse.setIsRenamable(false);  in forwardUses()
760     MOUse.setIsUndef(CopySrc.isUndef());  in forwardUses()