--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/src/share/vm/opto/rootnode.hpp	Sat Dec 01 00:00:00 2007 +0000
@@ -0,0 +1,62 @@
+/*
+ * Copyright 1997-2005 Sun Microsystems, Inc.  All Rights Reserved.
+ * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
+ *
+ * This code is free software; you can redistribute it and/or modify it
+ * under the terms of the GNU General Public License version 2 only, as
+ * published by the Free Software Foundation.
+ *
+ * This code is distributed in the hope that it will be useful, but WITHOUT
+ * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+ * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
+ * version 2 for more details (a copy is included in the LICENSE file that
+ * accompanied this code).
+ *
+ * You should have received a copy of the GNU General Public License version
+ * 2 along with this work; if not, write to the Free Software Foundation,
+ * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
+ *
+ * Please contact Sun Microsystems, Inc., 4150 Network Circle, Santa Clara,
+ * CA 95054 USA or visit www.sun.com if you need additional information or
+ * have any questions.
+ *
+ */
+
+//------------------------------RootNode---------------------------------------
+// The one-and-only before-all-else and after-all-else RootNode.  The RootNode
+// represents what happens if the user runs the whole program repeatedly.  The
+// RootNode produces the initial values of I/O and memory for the program or
+// procedure start.
+class RootNode : public LoopNode {
+public:
+  RootNode( ) : LoopNode(0,0) {
+    init_class_id(Class_Root);
+    del_req(2);
+    del_req(1);
+  }
+  virtual int   Opcode() const;
+  virtual const Node *is_block_proj() const { return this; }
+  virtual const Type *bottom_type() const { return Type::BOTTOM; }
+  virtual Node *Identity( PhaseTransform *phase ) { return this; }
+  virtual Node *Ideal(PhaseGVN *phase, bool can_reshape);
+  virtual const Type *Value( PhaseTransform *phase ) const { return Type::BOTTOM; }
+};
+
+//------------------------------HaltNode---------------------------------------
+// Throw an exception & die
+class HaltNode : public Node {
+public:
+  HaltNode( Node *ctrl, Node *frameptr );
+  virtual int Opcode() const;
+  virtual bool  pinned() const { return true; };
+  virtual Node *Ideal(PhaseGVN *phase, bool can_reshape);
+  virtual const Type *Value( PhaseTransform *phase ) const;
+  virtual const Type *bottom_type() const;
+  virtual bool  is_CFG() const { return true; }
+  virtual uint hash() const { return NO_HASH; }  // CFG nodes do not hash
+  virtual bool depends_only_on_test() const { return false; }
+  virtual const Node *is_block_proj() const { return this; }
+  virtual const RegMask &out_RegMask() const;
+  virtual uint ideal_reg() const { return NotAMachineReg; }
+  virtual uint match_edge(uint idx) const { return 0; }
+};