diff -r 2a1a77d3458f -r 1dd146f17531 src/share/vm/opto/cfgnode.hpp
--- a/src/share/vm/opto/cfgnode.hpp	Tue Jun 24 16:00:14 2008 -0700
+++ b/src/share/vm/opto/cfgnode.hpp	Thu Jun 26 13:34:00 2008 -0700
@@ -129,7 +129,7 @@
   };
 
   PhiNode( Node *r, const Type *t, const TypePtr* at = NULL,
-           const int iid = TypeOopPtr::UNKNOWN_INSTANCE,
+           const int iid = TypeOopPtr::InstanceTop,
            const int iidx = Compile::AliasIdxTop,
            const int ioffs = Type::OffsetTop )
     : TypeNode(t,r->req()),