518         MachineInstr *DefMI = MRI->getVRegDef(TrueReg1);  in simplifyCode()  local
520         if (!DefMI)  in simplifyCode()
523         unsigned DefOpc = DefMI->getOpcode();  in simplifyCode()
533             TRI->lookThruCopyLike(DefMI->getOperand(1).getReg(), MRI);  in simplifyCode()
556           unsigned DefReg1 = DefMI->getOperand(1).getReg();  in simplifyCode()
557           unsigned DefReg2 = DefMI->getOperand(2).getReg();  in simplifyCode()
558           unsigned DefImmed = DefMI->getOperand(3).getImm();  in simplifyCode()
602                 .add(DefMI->getOperand(1));  in simplifyCode()
607                    (DefMI->getOperand(2).getImm() == 0 ||  in simplifyCode()
608                     DefMI->getOperand(2).getImm() == 3)) {  in simplifyCode()
611           DefMI->getOperand(0).setReg(MI.getOperand(0).getReg());  in simplifyCode()
628         MachineInstr *DefMI = MRI->getVRegDef(TrueReg);  in simplifyCode()  local
629         if (!DefMI)  in simplifyCode()
631         unsigned DefOpcode = DefMI->getOpcode();  in simplifyCode()
635           Register ConvReg = DefMI->getOperand(1).getReg();  in simplifyCode()
663           Register ShiftRes = DefMI->getOperand(0).getReg();  in simplifyCode()
664           Register ShiftOp1 = DefMI->getOperand(1).getReg();  in simplifyCode()
665           Register ShiftOp2 = DefMI->getOperand(2).getReg();  in simplifyCode()
666           unsigned ShiftImm = DefMI->getOperand(3).getImm();  in simplifyCode()
673               LLVM_DEBUG(DefMI->dump());  in simplifyCode()
674               ToErase = DefMI;  in simplifyCode()
692         MachineInstr *DefMI = MRI->getVRegDef(TrueReg);  in simplifyCode()  local
696         if (DefMI && DefMI->getOpcode() == PPC::XXPERMDI) {  in simplifyCode()
698             TRI->lookThruCopyLike(DefMI->getOperand(1).getReg(), MRI);  in simplifyCode()
700             TRI->lookThruCopyLike(DefMI->getOperand(2).getReg(), MRI);  in simplifyCode()
730               LLVM_DEBUG(DefMI->dump());  in simplifyCode()