--- /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/BuiltinFunctionTest.java	Fri Mar 01 17:05:14 2013 +0100
@@ -0,0 +1,132 @@
+/*
+ * 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.*;
+import com.oracle.truffle.api.nodes.*;
+
+/**
+ * Generated code at {@link BuiltinFunctionTestFactory}.
+ */
+public class BuiltinFunctionTest {
+
+    @TypeSystemReference(SimpleTypes.class)
+    abstract static class ValueNode extends Node {
+
+        abstract int executeInt() throws UnexpectedResultException;
+
+        abstract String executeString() throws UnexpectedResultException;
+
+        abstract Object execute();
+
+    }
+
+    abstract static class FunctionNode extends ValueNode {
+
+        @Children ValueNode[] parameters;
+
+        FunctionNode(ValueNode[] parameters) {
+            this.parameters = adoptChildren(parameters);
+        }
+
+        FunctionNode(FunctionNode prev) {
+            this(prev.parameters);
+        }
+    }
+
+    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");
+    }
+
+    abstract static class MathAbsNode extends FunctionNode {
+
+        MathAbsNode(ValueNode[] children) {
+            super(children);
+        }
+
+        MathAbsNode(MathAbsNode prev) {
+            super(prev);
+        }
+
+        @Specialization
+        int doInt(int value1) {
+            return Math.abs(value1);
+        }
+
+        @Generic
+        int doGeneric(Object value0) {
+            return doInt(convertInt(value0));
+        }
+    }
+
+    abstract static class StringThisNode extends ValueNode {
+
+        @Override
+        final String executeString() {
+            return (String) execute();
+        }
+
+    }
+
+    @ExecuteChildren({"thisNode", "parameters"})
+    abstract static class InstanceFunctionNode extends FunctionNode {
+
+        @Child StringThisNode thisNode;
+
+        InstanceFunctionNode(StringThisNode thisNode, ValueNode[] parameters) {
+            super(parameters);
+            this.thisNode = thisNode;
+        }
+
+        InstanceFunctionNode(InstanceFunctionNode prev) {
+            this(prev.thisNode, prev.parameters);
+        }
+    }
+
+    abstract static class StringSubstrNode extends InstanceFunctionNode {
+
+        StringSubstrNode(StringThisNode thisNode, ValueNode[] parameters) {
+            super(thisNode, parameters);
+        }
+
+        StringSubstrNode(StringSubstrNode prev) {
+            super(prev);
+        }
+
+        @Specialization
+        String doInt(String thisValue, int beginIndex, int endIndex) {
+            return thisValue.substring(beginIndex, endIndex);
+        }
+
+        @Generic
+        String doGeneric(String thisValue, Object beginIndex, Object endIndex) {
+            return thisValue.substring(convertInt(beginIndex), convertInt(endIndex));
+        }
+    }
+
+}

--- /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/SimpleTypes.java	Fri Mar 01 17:05:14 2013 +0100
@@ -0,0 +1,29 @@
+/*
+ * 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.*;
+
+@TypeSystem({int.class, String.class})
+class SimpleTypes {
+}

--- /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/package-info.java	Fri Mar 01 17:05:14 2013 +0100
@@ -0,0 +1,46 @@
+/*
+ * 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.
+ */
+/**
+ * <p>This package contains basic tests of the Truffle-Source-Code-Generation (short Codegen) API and serves at the same
+ * time as an introduction to the Codegen API for language implementors. Every test gives an example on how to use the construct explained in the class description.</p>
+ *
+ * <p>
+ * This API relies heavily on the concepts described in {@link com.oracle.truffle.api.test}. We assume that the
+ * reader is already familiarized with those concepts.
+ * </p>
+ *
+ * <p>
+ * TODO general description
+ * </p>
+ *
+ * <p>
+ * This introduction to Codegen contains items in the following recommended order:
+ *
+ * <ul>
+ * <li>How would you generate builtin functions? {@link com.oracle.truffle.api.codegen.test.BuiltinFunctionTest}</li>
+ * </ul>
+ * </p>
+ *
+ */
+package com.oracle.truffle.api.codegen.test;
+

--- a/mx/projects	Fri Mar 01 17:03:57 2013 +0100
+++ b/mx/projects	Fri Mar 01 17:05:14 2013 +0100
@@ -360,6 +360,14 @@
 project@com.oracle.truffle.api.codegen@checkstyle=com.oracle.graal.graph
 project@com.oracle.truffle.api.codegen@javaCompliance=1.7
 
+# truffle.api.codegen.test
+project@com.oracle.truffle.api.codegen.test@subDir=graal
+project@com.oracle.truffle.api.codegen.test@sourceDirs=src
+project@com.oracle.truffle.api.codegen.test@dependencies=com.oracle.truffle.api.codegen,JUNIT,com.oracle.truffle.api.test
+project@com.oracle.truffle.api.codegen.test@checkstyle=com.oracle.graal.graph
+project@com.oracle.truffle.api.codegen.test@javaCompliance=1.7
+project@com.oracle.truffle.api.codegen.test@annotationProcessors=com.oracle.truffle.codegen.processor
+
 # truffle.codegen.processor
 project@com.oracle.truffle.codegen.processor@subDir=graal
 project@com.oracle.truffle.codegen.processor@sourceDirs=src