--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/graal/com.oracle.truffle.sl/src/com/oracle/truffle/sl/nodes/local/SLWriteLocalVariableNode.java	Wed Jan 29 20:45:43 2014 -0800
@@ -0,0 +1,77 @@
+/*
+ * Copyright (c) 2012, 2014, 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.sl.nodes.local;
+
+import com.oracle.truffle.api.*;
+import com.oracle.truffle.api.dsl.*;
+import com.oracle.truffle.api.frame.*;
+import com.oracle.truffle.sl.nodes.*;
+
+@NodeChild(value = "valueNode")
+@NodeField(name = "slot", type = FrameSlot.class)
+public abstract class SLWriteLocalVariableNode extends SLExpressionNode {
+
+    protected abstract FrameSlot getSlot();
+
+    @Specialization(guards = "isLongKind")
+    protected long write(VirtualFrame frame, long value) {
+        frame.setLong(getSlot(), value);
+        return value;
+    }
+
+    @Specialization(guards = "isBooleanKind")
+    protected boolean write(VirtualFrame frame, boolean value) {
+        frame.setBoolean(getSlot(), value);
+        return value;
+    }
+
+    @Specialization
+    protected Object write(VirtualFrame frame, Object value) {
+        if (getSlot().getKind() != FrameSlotKind.Object) {
+            CompilerDirectives.transferToInterpreterAndInvalidate();
+            getSlot().setKind(FrameSlotKind.Object);
+        }
+        frame.setObject(getSlot(), value);
+        return value;
+    }
+
+    protected boolean isLongKind() {
+        return isKind(FrameSlotKind.Long);
+    }
+
+    protected boolean isBooleanKind() {
+        return isKind(FrameSlotKind.Boolean);
+    }
+
+    private boolean isKind(FrameSlotKind kind) {
+        if (getSlot().getKind() == kind) {
+            return true;
+        } else if (getSlot().getKind() == FrameSlotKind.Illegal) {
+            CompilerDirectives.transferToInterpreterAndInvalidate();
+            getSlot().setKind(kind);
+            return true;
+        } else {
+            return false;
+        }
+    }
+}