From 683fe4fc4c72703ed1c4ba4c8af7667b148d802c Mon Sep 17 00:00:00 2001
From: Rafael Espindola <rafael.espindola@gmail.com>
Date: Mon, 19 Apr 2010 00:44:22 +0000
Subject: If a method is virtual and the class key function is in another file,
 emit the method as available_externally. Fixes PR6747

llvm-svn: 101757
---
 clang/lib/CodeGen/CodeGenModule.cpp | 9 ++++++++-
 1 file changed, 8 insertions(+), 1 deletion(-)

(limited to 'clang/lib/CodeGen/CodeGenModule.cpp')

diff --git a/clang/lib/CodeGen/CodeGenModule.cpp b/clang/lib/CodeGen/CodeGenModule.cpp
index ab2f1c7a..035e57f 100644
--- a/clang/lib/CodeGen/CodeGenModule.cpp
+++ b/clang/lib/CodeGen/CodeGenModule.cpp
@@ -314,7 +314,14 @@ GetLinkageForFunction(ASTContext &Context, const FunctionDecl *FD,
   if (FD->getTemplateSpecializationKind() 
                                        == TSK_ExplicitInstantiationDeclaration)
     return CodeGenModule::GVA_C99Inline;
-  
+
+  if (const CXXMethodDecl *MD = dyn_cast<CXXMethodDecl>(FD)) {
+    const CXXRecordDecl *RD = MD->getParent();
+    if (MD->isVirtual() &&
+	CodeGenVTables::isKeyFunctionInAnotherTU(Context, RD))
+      return CodeGenModule::GVA_C99Inline;
+  }  
+
   return CodeGenModule::GVA_CXXInline;
 }
 
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