diff --git a/lib/CodeGen/CodeGenModule.cpp b/lib/CodeGen/CodeGenModule.cpp
index f6218cd..4865a91 100644
--- a/lib/CodeGen/CodeGenModule.cpp
+++ b/lib/CodeGen/CodeGenModule.cpp
@@ -510,7 +510,11 @@
 
 llvm::GlobalValue::LinkageTypes
 CodeGenModule::getFunctionLinkage(GlobalDecl GD) {
-  const FunctionDecl *D = cast<FunctionDecl>(GD.getDecl());
+  return getFunctionLinkage(cast<FunctionDecl>(GD.getDecl()));
+}
+
+llvm::GlobalValue::LinkageTypes
+CodeGenModule::getFunctionLinkage(const FunctionDecl *D) {
   GVALinkage Linkage = getContext().GetGVALinkageForFunction(D);
 
   if (Linkage == GVA_Internal)