306             MachineInstr *DefMI = MRI->getVRegDef(TrueReg1);  in simplifyCode()  local
307             unsigned DefOpc = DefMI ? DefMI->getOpcode() : 0;  in simplifyCode()
317                 TRI->lookThruCopyLike(DefMI->getOperand(1).getReg(), MRI);  in simplifyCode()
325             if (DefMI && (Immed == 0 || Immed == 3)) {  in simplifyCode()
341               unsigned FeedImmed = DefMI->getOperand(3).getImm();  in simplifyCode()
343                 TRI->lookThruCopyLike(DefMI->getOperand(1).getReg(), MRI);  in simplifyCode()
345                 TRI->lookThruCopyLike(DefMI->getOperand(2).getReg(), MRI);  in simplifyCode()
365                 MI.getOperand(1).setReg(DefMI->getOperand(1).getReg());  in simplifyCode()
366                 MI.getOperand(2).setReg(DefMI->getOperand(2).getReg());  in simplifyCode()
378                     .add(DefMI->getOperand(1));  in simplifyCode()
383                        (DefMI->getOperand(2).getImm() == 0 ||  in simplifyCode()
384                         DefMI->getOperand(2).getImm() == 3)) {  in simplifyCode()
387               DefMI->getOperand(0).setReg(MI.getOperand(0).getReg());  in simplifyCode()
406         MachineInstr *DefMI = MRI->getVRegDef(TrueReg);  in simplifyCode()  local
407         if (!DefMI)  in simplifyCode()
409         unsigned DefOpcode = DefMI->getOpcode();  in simplifyCode()
413           unsigned ConvReg = DefMI->getOperand(1).getReg();  in simplifyCode()
441           unsigned ShiftRes = DefMI->getOperand(0).getReg();  in simplifyCode()
442           unsigned ShiftOp1 = DefMI->getOperand(1).getReg();  in simplifyCode()
443           unsigned ShiftOp2 = DefMI->getOperand(2).getReg();  in simplifyCode()
444           unsigned ShiftImm = DefMI->getOperand(3).getImm();  in simplifyCode()
450               LLVM_DEBUG(DefMI->dump());  in simplifyCode()
451               ToErase = DefMI;  in simplifyCode()
469         MachineInstr *DefMI = MRI->getVRegDef(TrueReg);  in simplifyCode()  local
473         if (DefMI && DefMI->getOpcode() == PPC::XXPERMDI) {  in simplifyCode()
475             TRI->lookThruCopyLike(DefMI->getOperand(1).getReg(), MRI);  in simplifyCode()
477             TRI->lookThruCopyLike(DefMI->getOperand(2).getReg(), MRI);  in simplifyCode()
505               LLVM_DEBUG(DefMI->dump());  in simplifyCode()