diff --git a/lib/CodeGen/AsmPrinter/DwarfDebug.cpp b/lib/CodeGen/AsmPrinter/DwarfDebug.cpp
index 62c82a397ec..b461674ad63 100644
--- a/lib/CodeGen/AsmPrinter/DwarfDebug.cpp
+++ b/lib/CodeGen/AsmPrinter/DwarfDebug.cpp
@@ -337,12 +337,12 @@ void DwarfDebug::constructAbstractSubprogramScopeDIE(LexicalScope *Scope) {
 
   DISubprogram SP(Scope->getScopeNode());
 
-  ProcessedSPNodes.insert(SP);
-
   DIE *&AbsDef = AbstractSPDies[SP];
   if (AbsDef)
     return;
 
+  ProcessedSPNodes.insert(SP);
+
   // Find the subprogram's DwarfCompileUnit in the SPMap in case the subprogram
   // was inlined from another compile unit.
   DwarfCompileUnit &SPCU = *SPMap[SP];