- const MRegisterInfo &MRI = *MF.getTarget().getRegisterInfo();
- unsigned DstReg = 0;
- unsigned SrcReg = 0;
- unsigned InsReg = 0;
- unsigned SubIdx = 0;
-
- // If only have 3 operands, then the source superreg is undef
- // and we can supress the copy from the undef value
- if (MI->getNumOperands() == 3) {
- assert((MI->getOperand(0).isRegister() && MI->getOperand(0).isDef()) &&
- (MI->getOperand(1).isRegister() && MI->getOperand(1).isUse()) &&
- MI->getOperand(2).isImmediate() && "Invalid extract_subreg");
- DstReg = MI->getOperand(0).getReg();
- SrcReg = DstReg;
- InsReg = MI->getOperand(1).getReg();
- SubIdx = MI->getOperand(2).getImm();
- } else if (MI->getNumOperands() == 4) {
- assert((MI->getOperand(0).isRegister() && MI->getOperand(0).isDef()) &&
- (MI->getOperand(1).isRegister() && MI->getOperand(1).isUse()) &&
- (MI->getOperand(2).isRegister() && MI->getOperand(2).isUse()) &&
- MI->getOperand(3).isImmediate() && "Invalid extract_subreg");
- DstReg = MI->getOperand(0).getReg();
- SrcReg = MI->getOperand(1).getReg();
- InsReg = MI->getOperand(2).getReg();
- SubIdx = MI->getOperand(3).getImm();
- } else
- assert(0 && "Malformed extract_subreg");
-
- assert(SubIdx != 0 && "Invalid index for extract_subreg");
- unsigned DstSubReg = MRI.getSubReg(DstReg, SubIdx);
-
- assert(MRegisterInfo::isPhysicalRegister(SrcReg) &&
- "Insert superreg source must be in a physical register");
- assert(MRegisterInfo::isPhysicalRegister(DstReg) &&
+ const TargetRegisterInfo &TRI = *MF.getTarget().getRegisterInfo();
+ const TargetInstrInfo &TII = *MF.getTarget().getInstrInfo();
+ assert((MI->getOperand(0).isReg() && MI->getOperand(0).isDef()) &&
+ MI->getOperand(1).isImm() &&
+ (MI->getOperand(2).isReg() && MI->getOperand(2).isUse()) &&
+ MI->getOperand(3).isImm() && "Invalid subreg_to_reg");
+
+ unsigned DstReg = MI->getOperand(0).getReg();
+ unsigned InsReg = MI->getOperand(2).getReg();
+ unsigned SubIdx = MI->getOperand(3).getImm();
+
+ assert(SubIdx != 0 && "Invalid index for insert_subreg");
+ unsigned DstSubReg = TRI.getSubReg(DstReg, SubIdx);
+
+ assert(TargetRegisterInfo::isPhysicalRegister(DstReg) &&