*** old/src/share/vm/opto/memnode.cpp	Wed Feb 23 20:12:51 2011
--- new/src/share/vm/opto/memnode.cpp	Wed Feb 23 20:12:51 2011

*** 4075,4084 ****
--- 4075,4085 ----
    if (is_empty_memory(n)) {
      // the array is sparse; empty slots are the "top" node
      n = base_memory();
      assert(Node::in_dump()
             || n == NULL || n->bottom_type() == Type::TOP
+            || n->adr_type() == NULL // address is TOP
             || n->adr_type() == TypePtr::BOTTOM
             || n->adr_type() == TypeRawPtr::BOTTOM
             || Compile::current()->AliasLevel() == 0,
             "must be a wide memory");
      // AliasLevel == 0 if we are organizing the memory states manually.