[PowerPC] Use MCRegister. NFC

Author: topperc

llvm/lib/Target/PowerPC/MCTargetDesc/PPCInstPrinter.cpp

@@ -492,9 +492,9 @@ void PPCInstPrinter::printAbsBranchOperand(const MCInst *MI, unsigned OpNo,
 
 void PPCInstPrinter::printcrbitm(const MCInst *MI, unsigned OpNo,
                                  const MCSubtargetInfo &STI, raw_ostream &O) {
-  unsigned CCReg = MI->getOperand(OpNo).getReg();
+  MCRegister CCReg = MI->getOperand(OpNo).getReg();
   unsigned RegNo;
-  switch (CCReg) {
+  switch (CCReg.id()) {
   default: llvm_unreachable("Unknown CR register");
   case PPC::CR0: RegNo = 0; break;
   case PPC::CR1: RegNo = 1; break;
@@ -648,7 +648,7 @@ void PPCInstPrinter::printOperand(const MCInst *MI, unsigned OpNo,
                                   const MCSubtargetInfo &STI, raw_ostream &O) {
   const MCOperand &Op = MI->getOperand(OpNo);
   if (Op.isReg()) {
-    unsigned Reg = Op.getReg();
+    MCRegister Reg = Op.getReg();
     if (!ShowVSRNumsAsVR)
       Reg = PPC::getRegNumForOperand(MII.get(MI->getOpcode()), Reg, OpNo);
 

llvm/lib/Target/PowerPC/MCTargetDesc/PPCMCCodeEmitter.cpp

@@ -488,7 +488,7 @@ getMachineOpValue(const MCInst &MI, const MCOperand &MO,
             MI.getOpcode() != PPC::MFOCRF && MI.getOpcode() != PPC::MFOCRF8) ||
            MO.getReg() < PPC::CR0 || MO.getReg() > PPC::CR7);
     unsigned OpNo = getOpIdxForMO(MI, MO);
-    unsigned Reg =
+    MCRegister Reg =
         PPC::getRegNumForOperand(MCII.get(MI.getOpcode()), MO.getReg(), OpNo);
     return CTX.getRegisterInfo()->getEncodingValue(Reg);
   }

llvm/lib/Target/PowerPC/MCTargetDesc/PPCMCTargetDesc.cpp

@@ -117,8 +117,8 @@ const char *PPC::stripRegisterPrefix(const char *RegName) {
 /// The operand number argument will be useful when we need to extend this
 /// to instructions that use both Altivec and VSX numbering (for different
 /// operands).
-unsigned PPC::getRegNumForOperand(const MCInstrDesc &Desc, unsigned Reg,
-                                  unsigned OpNo) {
+MCRegister PPC::getRegNumForOperand(const MCInstrDesc &Desc, MCRegister Reg,
+                                    unsigned OpNo) {
   int16_t regClass = Desc.operands()[OpNo].RegClass;
   switch (regClass) {
     // We store F0-F31, VF0-VF31 in MCOperand and it should be F0-F31,

llvm/lib/Target/PowerPC/MCTargetDesc/PPCMCTargetDesc.h

@@ -47,8 +47,8 @@ const char *stripRegisterPrefix(const char *RegName);
 /// The operand number argument will be useful when we need to extend this
 /// to instructions that use both Altivec and VSX numbering (for different
 /// operands).
-unsigned getRegNumForOperand(const MCInstrDesc &Desc, unsigned Reg,
-                             unsigned OpNo);
+MCRegister getRegNumForOperand(const MCInstrDesc &Desc, MCRegister Reg,
+                               unsigned OpNo);
 
 } // namespace PPC
 

llvm/lib/Target/PowerPC/PPCAsmPrinter.cpp

@@ -984,7 +984,7 @@ void PPCAsmPrinter::emitInstruction(const MachineInstr *MI) {
     // Get the offset from the GOT Base Register to the GOT
     LowerPPCMachineInstrToMCInst(MI, TmpInst, *this);
     if (Subtarget->isSecurePlt() && isPositionIndependent() ) {
-      unsigned PICR = TmpInst.getOperand(0).getReg();
+      MCRegister PICR = TmpInst.getOperand(0).getReg();
       MCSymbol *BaseSymbol = OutContext.getOrCreateSymbol(
           M->getPICLevel() == PICLevel::SmallPIC ? "_GLOBAL_OFFSET_TABLE_"
                                                  : ".LTOC");

llvm/lib/Target/PowerPC/PPCFrameLowering.cpp

@@ -267,7 +267,7 @@ static bool hasNonRISpills(const MachineFunction &MF) {
 /// MustSaveLR - Return true if this function requires that we save the LR
 /// register onto the stack in the prolog and restore it in the epilog of the
 /// function.
-static bool MustSaveLR(const MachineFunction &MF, unsigned LR) {
+static bool MustSaveLR(const MachineFunction &MF, MCRegister LR) {
   const PPCFunctionInfo *MFI = MF.getInfo<PPCFunctionInfo>();
 
   // We need a save/restore of LR if there is any def of LR (which is
@@ -311,7 +311,7 @@ PPCFrameLowering::determineFrameLayout(const MachineFunction &MF,
 
   const PPCRegisterInfo *RegInfo = Subtarget.getRegisterInfo();
 
-  unsigned LR = RegInfo->getRARegister();
+  MCRegister LR = RegInfo->getRARegister();
   bool DisableRedZone = MF.getFunction().hasFnAttribute(Attribute::NoRedZone);
   bool CanUseRedZone = !MFI.hasVarSizedObjects() && // No dynamic alloca.
                        !MFI.adjustsStack() &&       // No calls.
@@ -1987,7 +1987,7 @@ void PPCFrameLowering::determineCalleeSaves(MachineFunction &MF,
 
   //  Save and clear the LR state.
   PPCFunctionInfo *FI = MF.getInfo<PPCFunctionInfo>();
-  unsigned LR = RegInfo->getRARegister();
+  MCRegister LR = RegInfo->getRARegister();
   FI->setMustSaveLR(MustSaveLR(MF, LR));
   SavedRegs.reset(LR);
 
@@ -2344,8 +2344,8 @@ bool PPCFrameLowering::assignCalleeSavedSpillSlots(
 
     for (auto &CalleeSaveReg : CSI) {
       MCPhysReg Reg = CalleeSaveReg.getReg();
-      MCPhysReg Lower = RegInfo->getSubReg(Reg, 1);
-      MCPhysReg Higher = RegInfo->getSubReg(Reg, 2);
+      MCRegister Lower = RegInfo->getSubReg(Reg, 1);
+      MCRegister Higher = RegInfo->getSubReg(Reg, 2);
 
       if ( // Check only for SuperRegs.
           Lower &&