--- /dev/null	2017-01-22 10:16:57.869617664 -0800
+++ new/src/jdk.internal.vm.compiler/share/classes/org.graalvm.compiler.nodes/src/org/graalvm/compiler/nodes/virtual/VirtualObjectNode.java	2017-02-15 17:08:01.662267118 -0800
@@ -0,0 +1,134 @@
+/*
+ * Copyright (c) 2011, 2015, 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 org.graalvm.compiler.nodes.virtual;
+
+import static org.graalvm.compiler.nodeinfo.NodeCycles.CYCLES_0;
+import static org.graalvm.compiler.nodeinfo.NodeSize.SIZE_0;
+
+import org.graalvm.compiler.core.common.type.StampFactory;
+import org.graalvm.compiler.core.common.type.TypeReference;
+import org.graalvm.compiler.graph.IterableNodeType;
+import org.graalvm.compiler.graph.Node;
+import org.graalvm.compiler.graph.NodeClass;
+import org.graalvm.compiler.nodeinfo.NodeInfo;
+import org.graalvm.compiler.nodes.FixedNode;
+import org.graalvm.compiler.nodes.ValueNode;
+import org.graalvm.compiler.nodes.spi.LIRLowerable;
+import org.graalvm.compiler.nodes.spi.NodeLIRBuilderTool;
+
+import jdk.vm.ci.meta.JavaKind;
+import jdk.vm.ci.meta.ResolvedJavaType;
+
+@NodeInfo(cycles = CYCLES_0, size = SIZE_0)
+public abstract class VirtualObjectNode extends ValueNode implements LIRLowerable, IterableNodeType {
+
+    public static final NodeClass<VirtualObjectNode> TYPE = NodeClass.create(VirtualObjectNode.class);
+    protected boolean hasIdentity;
+    private int objectId = -1;
+
+    protected VirtualObjectNode(NodeClass<? extends VirtualObjectNode> c, ResolvedJavaType type, boolean hasIdentity) {
+        super(c, StampFactory.objectNonNull(TypeReference.createExactTrusted(type)));
+        this.hasIdentity = hasIdentity;
+    }
+
+    public final int getObjectId() {
+        return objectId;
+    }
+
+    public final void resetObjectId() {
+        this.objectId = -1;
+    }
+
+    public final void setObjectId(int objectId) {
+        assert objectId != -1;
+        this.objectId = objectId;
+    }
+
+    @Override
+    protected void afterClone(Node other) {
+        super.afterClone(other);
+        resetObjectId();
+    }
+
+    /**
+     * The type of object described by this {@link VirtualObjectNode}. In case of arrays, this is
+     * the array type (and not the component type).
+     */
+    public abstract ResolvedJavaType type();
+
+    /**
+     * The number of entries this virtual object has. Either the number of fields or the number of
+     * array elements.
+     */
+    public abstract int entryCount();
+
+    /**
+     * Returns the name of the entry at the given index. Only used for debugging purposes.
+     */
+    public abstract String entryName(int i);
+
+    /**
+     * If the given index denotes an entry in this virtual object, the index of this entry is
+     * returned. If no such entry can be found, this method returns -1.
+     *
+     * @param constantOffset offset, where the value is placed.
+     * @param expectedEntryKind Specifies which type is expected at this offset (Is important when
+     *            doing implicit casts, especially on big endian systems.
+     */
+    public abstract int entryIndexForOffset(long constantOffset, JavaKind expectedEntryKind);
+
+    /**
+     * Returns the {@link JavaKind} of the entry at the given index.
+     */
+    public abstract JavaKind entryKind(int index);
+
+    /**
+     * Returns an exact duplicate of this virtual object node, which has not been added to the graph
+     * yet.
+     */
+    public abstract VirtualObjectNode duplicate();
+
+    /**
+     * Specifies whether this virtual object has an object identity. If not, then the result of a
+     * comparison of two virtual objects is determined by comparing their contents.
+     */
+    public boolean hasIdentity() {
+        return hasIdentity;
+    }
+
+    public void setIdentity(boolean identity) {
+        this.hasIdentity = identity;
+    }
+
+    /**
+     * Returns a node that can be used to materialize this virtual object. If this returns an
+     * {@link AllocatedObjectNode} then this node will be attached to a {@link CommitAllocationNode}
+     * , otherwise the node will just be added to the graph.
+     */
+    public abstract ValueNode getMaterializedRepresentation(FixedNode fixed, ValueNode[] entries, LockState locks);
+
+    @Override
+    public void generate(NodeLIRBuilderTool gen) {
+        // nothing to do...
+    }
+}