diff --git a/llvm/lib/CodeGen/AsmPrinter/DwarfDebug.h b/llvm/lib/CodeGen/AsmPrinter/DwarfDebug.h
index 4245950..da708f5 100644
--- a/llvm/lib/CodeGen/AsmPrinter/DwarfDebug.h
+++ b/llvm/lib/CodeGen/AsmPrinter/DwarfDebug.h
@@ -520,6 +520,9 @@
   /// \brief Emit visible names into a debug loc section.
   void emitDebugLoc();
 
+  /// \brief Emit visible names into a debug loc dwo section.
+  void emitDebugLocDWO();
+
   /// \brief Emit visible names into a debug aranges section.
   void emitDebugARanges();