diff --git a/lib/CodeGen/AsmPrinter/DwarfDebug.h b/lib/CodeGen/AsmPrinter/DwarfDebug.h
index 3d7a88c5de9..4e81f5919d1 100644
--- a/lib/CodeGen/AsmPrinter/DwarfDebug.h
+++ b/lib/CodeGen/AsmPrinter/DwarfDebug.h
@@ -175,11 +175,7 @@ class DwarfDebug {
 
   DenseMap<DIE *, MDNode *> ContainingTypeMap;
 
-  /// AbstractSubprogramDIEs - Collection of abstruct subprogram DIEs.
-  SmallPtrSet<DIE *, 4> AbstractSubprogramDIEs;
-
   typedef SmallVector<DbgScope *, 2> ScopeVector;
-
   SmallPtrSet<const MachineInstr *, 8> InsnsBeginScopeSet;
   SmallPtrSet<const MachineInstr *, 8> InsnsEndScopeSet;