--- /dev/null	2016-05-31 09:42:47.975716356 -0700
+++ new/src/jdk.vm.compiler/share/classes/org.graalvm.compiler.nodes/src/org/graalvm/compiler/nodes/virtual/VirtualArrayNode.java	2016-12-09 00:56:06.163806054 -0800
@@ -0,0 +1,176 @@
+/*
+ * 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 java.nio.ByteOrder;
+
+import org.graalvm.compiler.graph.NodeClass;
+import org.graalvm.compiler.nodeinfo.NodeInfo;
+import org.graalvm.compiler.nodeinfo.Verbosity;
+import org.graalvm.compiler.nodes.ConstantNode;
+import org.graalvm.compiler.nodes.FixedNode;
+import org.graalvm.compiler.nodes.ValueNode;
+import org.graalvm.compiler.nodes.spi.ArrayLengthProvider;
+import org.graalvm.compiler.nodes.spi.NodeLIRBuilderTool;
+
+import jdk.vm.ci.meta.JavaKind;
+import jdk.vm.ci.meta.ResolvedJavaType;
+import sun.misc.Unsafe;
+
+@NodeInfo(nameTemplate = "VirtualArray {p#componentType/s}[{p#length}]")
+public class VirtualArrayNode extends VirtualObjectNode implements ArrayLengthProvider {
+
+    public static final NodeClass<VirtualArrayNode> TYPE = NodeClass.create(VirtualArrayNode.class);
+    protected final ResolvedJavaType componentType;
+    protected final int length;
+
+    public VirtualArrayNode(ResolvedJavaType componentType, int length) {
+        this(TYPE, componentType, length);
+    }
+
+    protected VirtualArrayNode(NodeClass<? extends VirtualObjectNode> c, ResolvedJavaType componentType, int length) {
+        super(c, componentType.getArrayClass(), true);
+        this.componentType = componentType;
+        this.length = length;
+    }
+
+    @Override
+    public ResolvedJavaType type() {
+        return componentType.getArrayClass();
+    }
+
+    public ResolvedJavaType componentType() {
+        return componentType;
+    }
+
+    @Override
+    public int entryCount() {
+        return length;
+    }
+
+    @Override
+    public void generate(NodeLIRBuilderTool gen) {
+        // nothing to do...
+    }
+
+    @Override
+    public String toString(Verbosity verbosity) {
+        if (verbosity == Verbosity.Name) {
+            return super.toString(Verbosity.Name) + " " + componentType.getName() + "[" + length + "]";
+        } else {
+            return super.toString(verbosity);
+        }
+    }
+
+    @Override
+    public String entryName(int index) {
+        return "[" + index + "]";
+    }
+
+    @Override
+    public int entryIndexForOffset(long constantOffset, JavaKind expectedEntryKind) {
+        return entryIndexForOffset(constantOffset, expectedEntryKind, componentType, length);
+    }
+
+    public static int entryIndexForOffset(long constantOffset, JavaKind expectedEntryKind, ResolvedJavaType componentType, int length) {
+        int baseOffset;
+        int indexScale;
+        switch (componentType.getJavaKind()) {
+            case Boolean:
+                baseOffset = Unsafe.ARRAY_BOOLEAN_BASE_OFFSET;
+                indexScale = Unsafe.ARRAY_BOOLEAN_INDEX_SCALE;
+                break;
+            case Byte:
+                baseOffset = Unsafe.ARRAY_BYTE_BASE_OFFSET;
+                indexScale = Unsafe.ARRAY_BYTE_INDEX_SCALE;
+                break;
+            case Short:
+                baseOffset = Unsafe.ARRAY_SHORT_BASE_OFFSET;
+                indexScale = Unsafe.ARRAY_SHORT_INDEX_SCALE;
+                break;
+            case Char:
+                baseOffset = Unsafe.ARRAY_CHAR_BASE_OFFSET;
+                indexScale = Unsafe.ARRAY_CHAR_INDEX_SCALE;
+                break;
+            case Int:
+                baseOffset = Unsafe.ARRAY_INT_BASE_OFFSET;
+                indexScale = Unsafe.ARRAY_INT_INDEX_SCALE;
+                break;
+            case Long:
+                baseOffset = Unsafe.ARRAY_LONG_BASE_OFFSET;
+                indexScale = Unsafe.ARRAY_LONG_INDEX_SCALE;
+                break;
+            case Float:
+                baseOffset = Unsafe.ARRAY_FLOAT_BASE_OFFSET;
+                indexScale = Unsafe.ARRAY_FLOAT_INDEX_SCALE;
+                break;
+            case Double:
+                baseOffset = Unsafe.ARRAY_DOUBLE_BASE_OFFSET;
+                indexScale = Unsafe.ARRAY_DOUBLE_INDEX_SCALE;
+                break;
+            case Object:
+                baseOffset = Unsafe.ARRAY_OBJECT_BASE_OFFSET;
+                indexScale = Unsafe.ARRAY_OBJECT_INDEX_SCALE;
+                break;
+            default:
+                return -1;
+        }
+        long offset;
+        if (ByteOrder.nativeOrder() == ByteOrder.BIG_ENDIAN && componentType.isPrimitive()) {
+            // On big endian, we do just get expect the type be right aligned in this memory slot
+            offset = constantOffset - (componentType.getJavaKind().getByteCount() - Math.min(componentType.getJavaKind().getByteCount(), 4 + expectedEntryKind.getByteCount()));
+        } else {
+            offset = constantOffset;
+        }
+        long index = offset - baseOffset;
+        if (index % indexScale != 0) {
+            return -1;
+        }
+        long elementIndex = index / indexScale;
+        if (elementIndex < 0 || elementIndex >= length) {
+            return -1;
+        }
+        return (int) elementIndex;
+    }
+
+    @Override
+    public JavaKind entryKind(int index) {
+        assert index >= 0 && index < length;
+        return componentType.getJavaKind();
+    }
+
+    @Override
+    public VirtualArrayNode duplicate() {
+        return new VirtualArrayNode(componentType, length);
+    }
+
+    @Override
+    public ValueNode getMaterializedRepresentation(FixedNode fixed, ValueNode[] entries, LockState locks) {
+        return new AllocatedObjectNode(this);
+    }
+
+    @Override
+    public ValueNode length() {
+        return ConstantNode.forInt(length);
+    }
+}