[cfe-commits] r64200 - /cfe/trunk/lib/Analysis/GRSimpleVals.cpp

[Ted Kremenek]

Author: kremenek
Date: Mon Feb  9 23:42:58 2009
New Revision: 64200

URL: http://llvm.org/viewvc/llvm-project?rev=64200&view=rev
Log:
Fix a crash in GRSimpleVals::EvalCast due not handling transparent unions.

Modified:
    cfe/trunk/lib/Analysis/GRSimpleVals.cpp

Modified: cfe/trunk/lib/Analysis/GRSimpleVals.cpp
URL: http://llvm.org/viewvc/llvm-project/cfe/trunk/lib/Analysis/GRSimpleVals.cpp?rev=64200&r1=64199&r2=64200&view=diff

==============================================================================
--- cfe/trunk/lib/Analysis/GRSimpleVals.cpp (original)
+++ cfe/trunk/lib/Analysis/GRSimpleVals.cpp Mon Feb  9 23:42:58 2009
@@ -74,6 +74,11 @@
   if (Loc::IsLocType(T) || T->isReferenceType())
     return X;
   
+  // FIXME: Handle transparent unions where a value can be "transparently"
+  //  lifted into a union type.
+  if (T->isUnionType())
+    return UnknownVal();
+  
   assert (T->isIntegerType());
   BasicValueFactory& BasicVals = Eng.getBasicVals();
   unsigned BitWidth = Eng.getContext().getTypeSize(T);