--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/graal/com.oracle.max.graal.compiler/src/com/oracle/max/graal/compiler/graph/CompilerGraph.java	Wed Jun 08 08:59:54 2011 +0200
@@ -0,0 +1,53 @@
+/*
+ * Copyright (c) 2011, Oracle and/or its affiliates. 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 Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
+ * or visit www.oracle.com if you need additional information or have any
+ * questions.
+ */
+package com.oracle.max.graal.compiler.graph;
+
+import com.oracle.max.graal.compiler.ir.*;
+import com.oracle.max.graal.graph.*;
+
+
+public class CompilerGraph extends Graph {
+
+    private Return returnSingleton;
+    private Unwind unwindSingleton;
+
+    public Return createReturn(Value result) {
+        assert returnSingleton == null;
+        returnSingleton = new Return(result, this);
+        return returnSingleton;
+    }
+
+    public Return getReturn() {
+        return returnSingleton;
+    }
+
+    public Unwind createUnwind(Value exception) {
+        assert unwindSingleton == null;
+        unwindSingleton = new Unwind(exception, this);
+        return unwindSingleton;
+    }
+
+    public Unwind getUnwind() {
+        return unwindSingleton;
+    }
+}