[Hexagon] Use MCRegister. NFC

Author: topperc

llvm/lib/Target/Hexagon/HexagonAsmPrinter.cpp

@@ -460,8 +460,8 @@ void HexagonAsmPrinter::HexagonProcessInstruction(MCInst &Inst,
       TmpInst.setOpcode(Hexagon::A2_combinew);
       TmpInst.addOperand(MappedInst.getOperand(0));
       MCOperand &MO1 = MappedInst.getOperand(1);
-      unsigned High = RI->getSubReg(MO1.getReg(), Hexagon::isub_hi);
-      unsigned Low = RI->getSubReg(MO1.getReg(), Hexagon::isub_lo);
+      MCRegister High = RI->getSubReg(MO1.getReg(), Hexagon::isub_hi);
+      MCRegister Low = RI->getSubReg(MO1.getReg(), Hexagon::isub_lo);
       // Add a new operand for the second register in the pair.
       TmpInst.addOperand(MCOperand::createReg(High));
       TmpInst.addOperand(MCOperand::createReg(Low));
@@ -537,8 +537,8 @@ void HexagonAsmPrinter::HexagonProcessInstruction(MCInst &Inst,
   // Translate a "$Rdd = $Rss" to "$Rdd = combine($Rs, $Rt)"
   case Hexagon::A2_tfrp: {
     MCOperand &MO = MappedInst.getOperand(1);
-    unsigned High = RI->getSubReg(MO.getReg(), Hexagon::isub_hi);
-    unsigned Low = RI->getSubReg(MO.getReg(), Hexagon::isub_lo);
+    MCRegister High = RI->getSubReg(MO.getReg(), Hexagon::isub_hi);
+    MCRegister Low = RI->getSubReg(MO.getReg(), Hexagon::isub_lo);
     MO.setReg(High);
     // Add a new operand for the second register in the pair.
     MappedInst.addOperand(MCOperand::createReg(Low));
@@ -549,8 +549,8 @@ void HexagonAsmPrinter::HexagonProcessInstruction(MCInst &Inst,
   case Hexagon::A2_tfrpt:
   case Hexagon::A2_tfrpf: {
     MCOperand &MO = MappedInst.getOperand(2);
-    unsigned High = RI->getSubReg(MO.getReg(), Hexagon::isub_hi);
-    unsigned Low = RI->getSubReg(MO.getReg(), Hexagon::isub_lo);
+    MCRegister High = RI->getSubReg(MO.getReg(), Hexagon::isub_hi);
+    MCRegister Low = RI->getSubReg(MO.getReg(), Hexagon::isub_lo);
     MO.setReg(High);
     // Add a new operand for the second register in the pair.
     MappedInst.addOperand(MCOperand::createReg(Low));
@@ -563,8 +563,8 @@ void HexagonAsmPrinter::HexagonProcessInstruction(MCInst &Inst,
   case Hexagon::A2_tfrptnew:
   case Hexagon::A2_tfrpfnew: {
     MCOperand &MO = MappedInst.getOperand(2);
-    unsigned High = RI->getSubReg(MO.getReg(), Hexagon::isub_hi);
-    unsigned Low = RI->getSubReg(MO.getReg(), Hexagon::isub_lo);
+    MCRegister High = RI->getSubReg(MO.getReg(), Hexagon::isub_hi);
+    MCRegister Low = RI->getSubReg(MO.getReg(), Hexagon::isub_lo);
     MO.setReg(High);
     // Add a new operand for the second register in the pair.
     MappedInst.addOperand(MCOperand::createReg(Low));

llvm/lib/Target/Hexagon/HexagonCopyToCombine.cpp

@@ -593,8 +593,8 @@ void HexagonCopyToCombine::combine(MachineInstr &I1, MachineInstr &I2,
     llvm_unreachable("Unexpected register class");
 
   // Get the double word register.
-  unsigned DoubleRegDest = TRI->getMatchingSuperReg(LoRegDef, SubLo, SuperRC);
-  assert(DoubleRegDest != 0 && "Expect a valid register");
+  MCRegister DoubleRegDest = TRI->getMatchingSuperReg(LoRegDef, SubLo, SuperRC);
+  assert(DoubleRegDest.isValid() && "Expect a valid register");
 
   // Setup source operands.
   MachineOperand &LoOperand = IsI1Loreg ? I1.getOperand(1) : I2.getOperand(1);