651         MachineInstr *DefMI = MRI->getVRegDef(TrueReg1);  in simplifyCode()  local
653         if (!DefMI)  in simplifyCode()
656         unsigned DefOpc = DefMI->getOpcode();  in simplifyCode()
666             TRI->lookThruCopyLike(DefMI->getOperand(1).getReg(), MRI);  in simplifyCode()
690           Register DefReg1 = DefMI->getOperand(1).getReg();  in simplifyCode()
691           Register DefReg2 = DefMI->getOperand(2).getReg();  in simplifyCode()
692           unsigned DefImmed = DefMI->getOperand(3).getImm();  in simplifyCode()
741                 .add(DefMI->getOperand(1));  in simplifyCode()
742             addRegToUpdate(DefMI->getOperand(0).getReg());  in simplifyCode()
743             addRegToUpdate(DefMI->getOperand(1).getReg());  in simplifyCode()
749                    (DefMI->getOperand(2).getImm() == 0 ||  in simplifyCode()
750                     DefMI->getOperand(2).getImm() == 3)) {  in simplifyCode()
765           DefMI->getOperand(0).setReg(MI.getOperand(0).getReg());  in simplifyCode()
784                    TII->isLoadFromConstantPool(DefMI)) {  in simplifyCode()
785           const Constant *C = TII->getConstantFromConstantPool(DefMI);  in simplifyCode()
810         MachineInstr *DefMI = MRI->getVRegDef(TrueReg);  in simplifyCode()  local
811         if (!DefMI)  in simplifyCode()
813         unsigned DefOpcode = DefMI->getOpcode();  in simplifyCode()
817           Register ConvReg = DefMI->getOperand(1).getReg();  in simplifyCode()
846           Register ShiftRes = DefMI->getOperand(0).getReg();  in simplifyCode()
847           Register ShiftOp1 = DefMI->getOperand(1).getReg();  in simplifyCode()
848           Register ShiftOp2 = DefMI->getOperand(2).getReg();  in simplifyCode()
849           unsigned ShiftImm = DefMI->getOperand(3).getImm();  in simplifyCode()
856               LLVM_DEBUG(DefMI->dump());  in simplifyCode()
857               ToErase = DefMI;  in simplifyCode()
877         MachineInstr *DefMI = MRI->getVRegDef(TrueReg);  in simplifyCode()  local
881         if (DefMI && DefMI->getOpcode() == PPC::XXPERMDI) {  in simplifyCode()
883             TRI->lookThruCopyLike(DefMI->getOperand(1).getReg(), MRI);  in simplifyCode()
885             TRI->lookThruCopyLike(DefMI->getOperand(2).getReg(), MRI);  in simplifyCode()
914               LLVM_DEBUG(DefMI->dump());  in simplifyCode()