--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/graal/com.oracle.truffle.api.codegen.test/src/com/oracle/truffle/api/codegen/test/BinaryOperationTest.java	Wed Mar 06 18:33:05 2013 +0100
@@ -0,0 +1,75 @@
+/*
+ * Copyright (c) 2012, 2012, 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.truffle.api.codegen.test;
+
+import com.oracle.truffle.api.codegen.*;
+
+public class BinaryOperationTest {
+
+    static int convertInt(Object value) {
+        if (value instanceof Number) {
+            return ((Number) value).intValue();
+        } else if (value instanceof String) {
+            return Integer.parseInt((String) value);
+        }
+        throw new RuntimeException("Invalid datatype");
+    }
+
+    @NodeClass(BinaryNode.class)
+    abstract static class BinaryNode extends ValueNode {
+
+        @Child protected ValueNode leftNode;
+        @Child protected ValueNode rightNode;
+
+        public BinaryNode(ValueNode left, ValueNode right) {
+            this.leftNode = left;
+            this.rightNode = right;
+        }
+
+        public BinaryNode(BinaryNode prev) {
+            this(prev.leftNode, prev.rightNode);
+        }
+
+        @Specialization
+        int add(int left, int right) {
+            return left + right;
+        }
+
+        @Generic
+        int add(Object left, Object right) {
+            return convertInt(left) + convertInt(right);
+        }
+
+        @Specialization
+        int sub(int left, int right) {
+            return left + right;
+        }
+
+        @Generic
+        int sub(Object left, Object right) {
+            return convertInt(left) + convertInt(right);
+        }
+
+    }
+
+}