Index: lib/MC/MCDwarf.cpp
===================================================================
--- lib/MC/MCDwarf.cpp
+++ lib/MC/MCDwarf.cpp
@@ -783,7 +783,7 @@
     // The DW_TAG_label DIE abbrev (2).
     MCOS->EmitULEB128IntValue(2);
 
-    // AT_name, of the label without any leading underbar.
+    // AT_name, of the label.
     MCOS->EmitBytes(Entry.getName());
     MCOS->EmitIntValue(0, 1); // NULL byte to terminate the string.
 
@@ -937,11 +937,7 @@
   if (!context.getGenDwarfSectionSyms().count(MCOS->getCurrentSectionOnly()))
     return;
 
-  // The dwarf label's name does not have the symbol name's leading
-  // underbar if any.
   StringRef Name = Symbol->getName();
-  if (Name.startswith("_"))
-    Name = Name.substr(1, Name.size()-1);
 
   // Get the dwarf file number to be used for the dwarf label.
   unsigned FileNumber = context.getGenDwarfFileNumber();