--- /dev/null	2017-01-22 10:16:57.869617664 -0800
+++ new/src/jdk.internal.vm.compiler/share/classes/org.graalvm.compiler.loop/src/org/graalvm/compiler/loop/LoopFragmentWhole.java	2017-02-15 17:06:11.358442618 -0800
@@ -0,0 +1,121 @@
+/*
+ * 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 org.graalvm.compiler.loop;
+
+import java.util.Collections;
+
+import org.graalvm.compiler.core.common.cfg.Loop;
+import org.graalvm.compiler.graph.Graph;
+import org.graalvm.compiler.graph.Graph.DuplicationReplacement;
+import org.graalvm.compiler.graph.Node;
+import org.graalvm.compiler.graph.NodeBitMap;
+import org.graalvm.compiler.nodes.EndNode;
+import org.graalvm.compiler.nodes.FixedNode;
+import org.graalvm.compiler.nodes.LoopBeginNode;
+import org.graalvm.compiler.nodes.StructuredGraph.GuardsStage;
+import org.graalvm.compiler.nodes.ValueNode;
+import org.graalvm.compiler.nodes.cfg.Block;
+
+public class LoopFragmentWhole extends LoopFragment {
+
+    public LoopFragmentWhole(LoopEx loop) {
+        super(loop);
+    }
+
+    public LoopFragmentWhole(LoopFragmentWhole original) {
+        super(null, original);
+    }
+
+    @Override
+    public LoopFragmentWhole duplicate() {
+        LoopFragmentWhole loopFragmentWhole = new LoopFragmentWhole(this);
+        loopFragmentWhole.reify();
+        return loopFragmentWhole;
+    }
+
+    private void reify() {
+        assert this.isDuplicate();
+
+        patchNodes(null);
+
+        mergeEarlyExits();
+    }
+
+    @Override
+    public NodeBitMap nodes() {
+        if (nodes == null) {
+            Loop<Block> loop = loop().loop();
+            if (loop.getHeader().getBeginNode().graph().getGuardsStage() == GuardsStage.AFTER_FSA) {
+                nodes = LoopFragment.computeNodes(graph(), LoopFragment.toHirBlocks(loop.getBlocks()), Collections.emptyList());
+            } else {
+                nodes = LoopFragment.computeNodes(graph(), LoopFragment.toHirBlocks(loop.getBlocks()), LoopFragment.toHirExits(loop.getExits()));
+            }
+        }
+        return nodes;
+    }
+
+    @Override
+    protected ValueNode prim(ValueNode b) {
+        return getDuplicatedNode(b);
+    }
+
+    @Override
+    protected DuplicationReplacement getDuplicationReplacement() {
+        final FixedNode entry = loop().entryPoint();
+        final Graph graph = this.graph();
+        return new DuplicationReplacement() {
+
+            private EndNode endNode;
+
+            @Override
+            public Node replacement(Node o) {
+                if (o == entry) {
+                    if (endNode == null) {
+                        endNode = graph.add(new EndNode());
+                    }
+                    return endNode;
+                }
+                return o;
+            }
+        };
+    }
+
+    public FixedNode entryPoint() {
+        if (isDuplicate()) {
+            LoopBeginNode newLoopBegin = getDuplicatedNode(original().loop().loopBegin());
+            return newLoopBegin.forwardEnd();
+        }
+        return loop().entryPoint();
+    }
+
+    @Override
+    protected void finishDuplication() {
+        // TODO (gd) ?
+    }
+
+    @Override
+    public void insertBefore(LoopEx loop) {
+        // TODO Auto-generated method stub
+
+    }
+}