Index: lib/CodeGen/CodeGenFunction.cpp
===================================================================
--- lib/CodeGen/CodeGenFunction.cpp	(revision 165925)
+++ lib/CodeGen/CodeGenFunction.cpp	(working copy)
@@ -493,8 +493,8 @@
   const FunctionDecl *FD = cast<FunctionDecl>(GD.getDecl());
   
   // Check if we should generate debug info for this function.
-  if (CGM.getModuleDebugInfo() && !FD->hasAttr<NoDebugAttr>())
-    DebugInfo = CGM.getModuleDebugInfo();
+  if (!FD->hasAttr<NoDebugAttr>())
+    maybeInitializeDebugInfo();
 
   FunctionArgList Args;
   QualType ResTy = FD->getResultType();
Index: lib/CodeGen/CGObjC.cpp
===================================================================
--- lib/CodeGen/CGObjC.cpp	(revision 165925)
+++ lib/CodeGen/CGObjC.cpp	(working copy)
@@ -440,8 +440,8 @@
                                       SourceLocation StartLoc) {
   FunctionArgList args;
   // Check if we should generate debug info for this method.
-  if (CGM.getModuleDebugInfo() && !OMD->hasAttr<NoDebugAttr>())
-    DebugInfo = CGM.getModuleDebugInfo();
+  if (!OMD->hasAttr<NoDebugAttr>())
+    maybeInitializeDebugInfo();
 
   llvm::Function *Fn = CGM.getObjCRuntime().GenerateMethod(OMD, CD);
 
@@ -2830,10 +2830,8 @@
                            "__assign_helper_atomic_property_",
                            &CGM.getModule());
   
-  if (CGM.getModuleDebugInfo())
-    DebugInfo = CGM.getModuleDebugInfo();
+  maybeInitializeDebugInfo();
   
-  
   StartFunction(FD, C.VoidTy, Fn, FI, args, SourceLocation());
   
   DeclRefExpr DstExpr(&dstDecl, false, DestTy,
@@ -2916,8 +2914,7 @@
   llvm::Function::Create(LTy, llvm::GlobalValue::InternalLinkage,
                          "__copy_helper_atomic_property_", &CGM.getModule());
   
-  if (CGM.getModuleDebugInfo())
-    DebugInfo = CGM.getModuleDebugInfo();
+  maybeInitializeDebugInfo();
   
   
   StartFunction(FD, C.VoidTy, Fn, FI, args, SourceLocation());
Index: lib/CodeGen/CGDeclCXX.cpp
===================================================================
--- lib/CodeGen/CGDeclCXX.cpp	(revision 165925)
+++ lib/CodeGen/CGDeclCXX.cpp	(working copy)
@@ -321,8 +321,8 @@
                                                        const VarDecl *D,
                                                  llvm::GlobalVariable *Addr,
                                                        bool PerformInit) {
-  if (CGM.getModuleDebugInfo() && !D->hasAttr<NoDebugAttr>())
-    DebugInfo = CGM.getModuleDebugInfo();
+  if (!D->hasAttr<NoDebugAttr>())
+    maybeInitializeDebugInfo();
 
   StartFunction(GlobalDecl(D), getContext().VoidTy, Fn,
                 getTypes().arrangeNullaryFunction(),
Index: lib/CodeGen/CodeGenFunction.h
===================================================================
--- lib/CodeGen/CodeGenFunction.h	(revision 165925)
+++ lib/CodeGen/CodeGenFunction.h	(working copy)
@@ -1212,6 +1212,14 @@
 
   CodeGenTypes &getTypes() const { return CGM.getTypes(); }
   ASTContext &getContext() const { return CGM.getContext(); }
+  /// Returns true if DebugInfo is actually initialized.
+  bool maybeInitializeDebugInfo() {
+    if (CGM.getModuleDebugInfo()) {
+      DebugInfo = CGM.getModuleDebugInfo();
+      return true;
+    }
+    return false;
+  }
   CGDebugInfo *getDebugInfo() { 
     if (DisableDebugInfo) 
       return NULL;
Index: lib/CodeGen/CGBlocks.cpp
===================================================================
--- lib/CodeGen/CGBlocks.cpp	(revision 165925)
+++ lib/CodeGen/CGBlocks.cpp	(working copy)
@@ -1001,8 +1001,7 @@
   const BlockDecl *blockDecl = blockInfo.getBlockDecl();
 
   // Check if we should generate debug info for this block function.
-  if (CGM.getModuleDebugInfo())
-    DebugInfo = CGM.getModuleDebugInfo();
+  maybeInitializeDebugInfo();
   CurGD = GD;
   
   BlockInfo = &blockInfo;
@@ -1207,8 +1206,7 @@
     = &CGM.getContext().Idents.get("__copy_helper_block_");
 
   // Check if we should generate debug info for this block helper function.
-  if (CGM.getModuleDebugInfo())
-    DebugInfo = CGM.getModuleDebugInfo();
+  maybeInitializeDebugInfo();
 
   FunctionDecl *FD = FunctionDecl::Create(C,
                                           C.getTranslationUnitDecl(),
@@ -1321,8 +1319,7 @@
                            "__destroy_helper_block_", &CGM.getModule());
 
   // Check if we should generate debug info for this block destroy function.
-  if (CGM.getModuleDebugInfo())
-    DebugInfo = CGM.getModuleDebugInfo();
+  maybeInitializeDebugInfo();
 
   IdentifierInfo *II
     = &CGM.getContext().Idents.get("__destroy_helper_block_");