Remove unused EndAddress field

Author: Amirhossein Pashaeehir

llvm/include/llvm/DebugInfo/DWARF/DWARFDebugFrame.h

@@ -333,11 +333,6 @@ class UnwindTable {
   }
   void insertRow(const UnwindRow &Row) { Rows.push_back(Row); }
 
-  /// Set the last address that this unwinding table refers to.
-  ///
-  /// This is used when this table is created based on a FDE.
-  void setEndAddress(uint64_t Addr) { EndAddress = Addr; }
-
   /// Dump the UnwindTable to the stream.
   ///
   /// \param OS the stream to use for output.
@@ -375,9 +370,6 @@ class UnwindTable {
 
 private:
   RowContainer Rows;
-  /// The end address when data is extracted from a FDE. This value will be
-  /// invalid when a UnwindTable is extracted from a CIE.
-  std::optional<uint64_t> EndAddress;
 };
 
 LLVM_ABI raw_ostream &operator<<(raw_ostream &OS, const UnwindTable &Rows);

llvm/lib/DebugInfo/DWARF/DWARFDebugFrame.cpp

@@ -217,7 +217,6 @@ Expected<UnwindTable> llvm::dwarf::createUnwindTable(const FDE *Fde) {
   UnwindTable UT;
   UnwindRow Row;
   Row.setAddress(Fde->getInitialLocation());
-  UT.setEndAddress(Fde->getInitialLocation() + Fde->getAddressRange());
   if (Error CieError = UT.parseRows(Cie->cfis(), Row, nullptr))
     return std::move(CieError);
   // We need to save the initial locations of registers from the CIE parsing