From bf98608a3dd5fb295f047b957e6aea3211876de4 Mon Sep 17 00:00:00 2001
From: Gabor Greif <ggreif@gmail.com>
Date: Sat, 18 Sep 2010 13:00:17 +0000
Subject: [PATCH] do not rely on the implicit-dereference semantics of
 dyn_cast_or_null

llvm-svn: 114281
---
 clang/lib/CodeGen/CGDebugInfo.cpp | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/clang/lib/CodeGen/CGDebugInfo.cpp b/clang/lib/CodeGen/CGDebugInfo.cpp
index 24542fd5b802..bf5f9746da83 100644
--- a/clang/lib/CodeGen/CGDebugInfo.cpp
+++ b/clang/lib/CodeGen/CGDebugInfo.cpp
@@ -61,7 +61,7 @@ llvm::DIDescriptor CGDebugInfo::getContextDescriptor(const Decl *Context,
   llvm::DenseMap<const Decl *, llvm::WeakVH>::iterator
     I = RegionMap.find(Context);
   if (I != RegionMap.end())
-    return llvm::DIDescriptor(dyn_cast_or_null<llvm::MDNode>(I->second));
+    return llvm::DIDescriptor(dyn_cast_or_null<llvm::MDNode>(&*I->second));
 
   // Check namespace.
   if (const NamespaceDecl *NSDecl = dyn_cast<NamespaceDecl>(Context))
@@ -1478,7 +1478,7 @@ void CGDebugInfo::EmitFunctionStart(GlobalDecl GD, QualType FnType,
     llvm::DenseMap<const FunctionDecl *, llvm::WeakVH>::iterator
       FI = SPCache.find(FD);
     if (FI != SPCache.end()) {
-      llvm::DIDescriptor SP(dyn_cast_or_null<llvm::MDNode>(FI->second));
+      llvm::DIDescriptor SP(dyn_cast_or_null<llvm::MDNode>(&*FI->second));
       if (SP.isSubprogram() && llvm::DISubprogram(SP).isDefinition()) {
         llvm::MDNode *SPN = SP;
         RegionStack.push_back(SPN);