[ARM][BPF][Lanai][MSP430] Use MCRegister::id() to avoid an implicit cast. NFC (#167537)

Author: topperc

llvm/lib/Target/ARM/MCTargetDesc/ARMAsmBackend.cpp

@@ -1238,7 +1238,7 @@ uint64_t ARMAsmBackendDarwin::generateCompactUnwindEncoding(
   // Verify standard frame (lr/r7) was used.
   if (CFARegister != ARM::R7) {
     DEBUG_WITH_TYPE("compact-unwind", llvm::dbgs() << "frame register is "
-                                                   << CFARegister
+                                                   << CFARegister.id()
                                                    << " instead of r7\n");
     return CU::UNWIND_ARM_MODE_DWARF;
   }

llvm/lib/Target/BPF/AsmParser/BPFAsmParser.cpp

@@ -172,7 +172,7 @@ struct BPFOperand : public MCParsedAsmOperand {
       break;
     case Register:
       OS << "<register x";
-      OS << getReg() << ">";
+      OS << getReg().id() << ">";
       break;
     case Token:
       OS << "'" << getToken() << "'";

llvm/lib/Target/Lanai/AsmParser/LanaiAsmParser.cpp

@@ -559,22 +559,22 @@ struct LanaiOperand : public MCParsedAsmOperand {
       OS << "Token: " << getToken() << "\n";
       break;
     case REGISTER:
-      OS << "Reg: %r" << getReg() << "\n";
+      OS << "Reg: %r" << getReg().id() << "\n";
       break;
     case MEMORY_IMM:
       OS << "MemImm: ";
       MAI.printExpr(OS, *getMemOffset());
       OS << '\n';
       break;
     case MEMORY_REG_IMM:
-      OS << "MemRegImm: " << getMemBaseReg() << "+";
+      OS << "MemRegImm: " << getMemBaseReg().id() << "+";
       MAI.printExpr(OS, *getMemOffset());
       OS << '\n';
       break;
     case MEMORY_REG_REG:
       assert(getMemOffset() == nullptr);
-      OS << "MemRegReg: " << getMemBaseReg() << "+"
-         << "%r" << getMemOffsetReg() << "\n";
+      OS << "MemRegReg: " << getMemBaseReg().id() << "+"
+         << "%r" << getMemOffsetReg().id() << "\n";
       break;
     }
   }

llvm/lib/Target/MSP430/AsmParser/MSP430AsmParser.cpp

@@ -230,7 +230,7 @@ class MSP430Operand : public MCParsedAsmOperand {
       O << "Token " << Tok;
       break;
     case k_Reg:
-      O << "Register " << Reg;
+      O << "Register " << Reg.id();
       break;
     case k_Imm:
       O << "Immediate ";
@@ -241,10 +241,10 @@ class MSP430Operand : public MCParsedAsmOperand {
       MAI.printExpr(O, *Mem.Offset);
       break;
     case k_IndReg:
-      O << "RegInd " << Reg;
+      O << "RegInd " << Reg.id();
       break;
     case k_PostIndReg:
-      O << "PostInc " << Reg;
+      O << "PostInc " << Reg.id();
       break;
     }
   }