From debc71cea3ae0e2b40fbe511de2d4f0e56a66fb1 Mon Sep 17 00:00:00 2001
From: Rafael Espindola <rafael.espindola@gmail.com>
Date: Thu, 28 Jun 2012 15:11:39 +0000
Subject: Disable devirtualization when we have covariant returns. I will open
 a bug for tracking this.

llvm-svn: 159351
---
 clang/lib/CodeGen/CGExprCXX.cpp | 3 +++
 1 file changed, 3 insertions(+)

(limited to 'clang/lib')

diff --git a/clang/lib/CodeGen/CGExprCXX.cpp b/clang/lib/CodeGen/CGExprCXX.cpp
index 100ef02af13..4b0bff0ad0d 100644
--- a/clang/lib/CodeGen/CGExprCXX.cpp
+++ b/clang/lib/CodeGen/CGExprCXX.cpp
@@ -202,6 +202,9 @@ RValue CodeGenFunction::EmitCXXMemberCallExpr(const CXXMemberCallExpr *CE,
       // we don't have support for that yet, so do a virtual call.
       DevirtualizedMethod = NULL;
     }
+    if (DevirtualizedMethod && DevirtualizedMethod->getResultType() !=
+        MD->getResultType())
+      DevirtualizedMethod = NULL;
   }
 
   llvm::Value *This;
-- 
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