Also add the linkage name to the name accelerator tables if it exists
and is different than the normal name.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@144130 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/lib/CodeGen/AsmPrinter/DwarfCompileUnit.cpp b/lib/CodeGen/AsmPrinter/DwarfCompileUnit.cpp
index 660992a..3d353b3 100644
--- a/lib/CodeGen/AsmPrinter/DwarfCompileUnit.cpp
+++ b/lib/CodeGen/AsmPrinter/DwarfCompileUnit.cpp
@@ -1131,6 +1131,11 @@
   if (addToAccelTable)
     addAccelName(GV.getName(), VariableDIE);
 
+  // If the linkage name is different than the name, go ahead and output
+  // that as well into the name table.
+  if (GV.getLinkageName() != "" && GV.getName() != GV.getLinkageName())
+    addAccelName(GV.getLinkageName(), VariableDIE);
+
   return;
 }