commit 06f0e097568b647a31338861f3a8adcbb021c4d4
author John McCall <rjmccall@apple.com> Fri May 07 21:01:17 2010 +0000
committer John McCall <rjmccall@apple.com> Fri May 07 21:01:17 2010 +0000
tree 7cc9a88fd62638f0ab2d0fd2bbfda5657e9f378c
parent 45d55e4f26774878218ef002ee1ef7f09e560119

Fix a potential null dereference in the pointer-to-bool evaluator;  caught by
Eli Friedman.

llvm-svn: 103297

clang/lib/AST/ExprConstant.cpp

diff --git a/clang/lib/AST/ExprConstant.cpp b/clang/lib/AST/ExprConstant.cpp
index b6613e7..c534d03 100644
--- a/clang/lib/AST/ExprConstant.cpp
+++ b/clang/lib/AST/ExprConstant.cpp
@@ -115,7 +115,7 @@
 
   Result = Base || !Value.Offset.isZero();
 
-  const DeclRefExpr* DeclRef = dyn_cast<DeclRefExpr>(Base);
+  const DeclRefExpr* DeclRef = dyn_cast_or_null<DeclRefExpr>(Base);
   if (!DeclRef)
     return true;