[AVR] Use MCRegister. NFC

Author: topperc

llvm/lib/Target/AVR/MCTargetDesc/AVRInstPrinter.cpp

@@ -86,16 +86,16 @@ void AVRInstPrinter::printInst(const MCInst *MI, uint64_t Address,
   }
 }
 
-const char *AVRInstPrinter::getPrettyRegisterName(unsigned RegNum,
+const char *AVRInstPrinter::getPrettyRegisterName(MCRegister Reg,
                                                   MCRegisterInfo const &MRI) {
   // GCC prints register pairs by just printing the lower register
   // If the register contains a subregister, print it instead
   if (MRI.getNumSubRegIndices() > 0) {
-    unsigned RegLoNum = MRI.getSubReg(RegNum, AVR::sub_lo);
-    RegNum = (RegLoNum != AVR::NoRegister) ? RegLoNum : RegNum;
+    MCRegister RegLo = MRI.getSubReg(Reg, AVR::sub_lo);
+    Reg = (RegLo != AVR::NoRegister) ? RegLo : Reg;
   }
 
-  return getRegisterName(RegNum);
+  return getRegisterName(Reg);
 }
 
 void AVRInstPrinter::printOperand(const MCInst *MI, unsigned OpNo,

llvm/lib/Target/AVR/MCTargetDesc/AVRInstPrinter.h

@@ -26,7 +26,7 @@ class AVRInstPrinter : public MCInstPrinter {
                  const MCRegisterInfo &MRI)
       : MCInstPrinter(MAI, MII, MRI) {}
 
-  static const char *getPrettyRegisterName(unsigned RegNo,
+  static const char *getPrettyRegisterName(MCRegister Reg,
                                            MCRegisterInfo const &MRI);
 
   void printInst(const MCInst *MI, uint64_t Address, StringRef Annot,

llvm/lib/Target/AVR/MCTargetDesc/AVRMCCodeEmitter.cpp

@@ -118,7 +118,7 @@ unsigned AVRMCCodeEmitter::encodeLDSTPtrReg(const MCInst &MI, unsigned OpNo,
   // The operand should be a pointer register.
   assert(MO.isReg());
 
-  switch (MO.getReg()) {
+  switch (MO.getReg().id()) {
   case AVR::R27R26:
     return 0x03; // X: 0b11
   case AVR::R29R28:
@@ -144,7 +144,7 @@ unsigned AVRMCCodeEmitter::encodeMemri(const MCInst &MI, unsigned OpNo,
 
   uint8_t RegBit = 0;
 
-  switch (RegOp.getReg()) {
+  switch (RegOp.getReg().id()) {
   default:
     Ctx.reportError(MI.getLoc(), "Expected either Y or Z register");
     return 0;