[llvm] [llvm] use 64-bit types for result of getDwarfRegNum (NFC) (PR #109494)

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git-clang-format --diff abc2412f077546066289d0e34c3b499d54337446 c8fbd5830e63d9f6defed936c769ba27ea8cf261 --extensions h,cpp -- llvm/include/llvm/MC/MCRegisterInfo.h llvm/lib/CodeGen/AsmPrinter/DwarfDebug.cpp llvm/lib/CodeGen/AsmPrinter/DwarfExpression.cpp llvm/lib/CodeGen/AsmPrinter/DwarfExpression.h llvm/lib/MC/MCRegisterInfo.cpp llvm/lib/Target/Lanai/LanaiRegisterInfo.h
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diff --git a/llvm/lib/MC/MCRegisterInfo.cpp b/llvm/lib/MC/MCRegisterInfo.cpp
index 7d269308b0..178b1d21e5 100644
--- a/llvm/lib/MC/MCRegisterInfo.cpp
+++ b/llvm/lib/MC/MCRegisterInfo.cpp
@@ -159,13 +159,13 @@ int64_t MCRegisterInfo::getDwarfRegNum(MCRegister RegNum, bool isEH) const {
 }
 
 std::optional<MCRegister> MCRegisterInfo::getLLVMRegNum(uint64_t RegNum,
-                                                      bool isEH) const {
+                                                        bool isEH) const {
   const DwarfLLVMRegPair *M = isEH ? EHDwarf2LRegs : Dwarf2LRegs;
   unsigned Size = isEH ? EHDwarf2LRegsSize : Dwarf2LRegsSize;
 
   if (!M)
     return std::nullopt;
-  DwarfLLVMRegPair Key = { unsigned(RegNum), 0 };
+  DwarfLLVMRegPair Key = {unsigned(RegNum), 0};
   const DwarfLLVMRegPair *I = std::lower_bound(M, M+Size, Key);
   if (I != M + Size && I->FromReg == RegNum)
     return MCRegister::from(I->ToReg);

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https://github.com/llvm/llvm-project/pull/109494