--- /dev/null	2016-05-31 09:42:47.975716356 -0700
+++ new/src/jdk.vm.compiler/share/classes/org.graalvm.compiler.virtual/src/org/graalvm/compiler/virtual/phases/ea/PartialEscapePhase.java	2016-12-09 00:57:26.890364337 -0800
@@ -0,0 +1,103 @@
+/*
+ * Copyright (c) 2011, 2016, 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.virtual.phases.ea;
+
+import static org.graalvm.compiler.core.common.GraalOptions.EscapeAnalysisIterations;
+import static org.graalvm.compiler.core.common.GraalOptions.EscapeAnalyzeOnly;
+
+import java.util.Set;
+
+import org.graalvm.compiler.graph.Node;
+import org.graalvm.compiler.nodes.StructuredGraph;
+import org.graalvm.compiler.nodes.StructuredGraph.ScheduleResult;
+import org.graalvm.compiler.nodes.cfg.ControlFlowGraph;
+import org.graalvm.compiler.nodes.virtual.VirtualObjectNode;
+import org.graalvm.compiler.options.Option;
+import org.graalvm.compiler.options.OptionType;
+import org.graalvm.compiler.options.OptionValue;
+import org.graalvm.compiler.phases.BasePhase;
+import org.graalvm.compiler.phases.common.CanonicalizerPhase;
+import org.graalvm.compiler.phases.tiers.PhaseContext;
+
+public class PartialEscapePhase extends EffectsPhase<PhaseContext> {
+
+    static class Options {
+        //@formatter:off
+        @Option(help = "", type = OptionType.Debug)
+        public static final OptionValue<Boolean> OptEarlyReadElimination = new OptionValue<>(true);
+        //@formatter:on
+    }
+
+    private final boolean readElimination;
+    private final BasePhase<PhaseContext> cleanupPhase;
+
+    public PartialEscapePhase(boolean iterative, CanonicalizerPhase canonicalizer) {
+        this(iterative, Options.OptEarlyReadElimination.getValue(), canonicalizer, null);
+    }
+
+    public PartialEscapePhase(boolean iterative, CanonicalizerPhase canonicalizer, BasePhase<PhaseContext> cleanupPhase) {
+        this(iterative, Options.OptEarlyReadElimination.getValue(), canonicalizer, cleanupPhase);
+    }
+
+    public PartialEscapePhase(boolean iterative, boolean readElimination, CanonicalizerPhase canonicalizer, BasePhase<PhaseContext> cleanupPhase) {
+        super(iterative ? EscapeAnalysisIterations.getValue() : 1, canonicalizer);
+        this.readElimination = readElimination;
+        this.cleanupPhase = cleanupPhase;
+    }
+
+    @Override
+    protected void postIteration(StructuredGraph graph, PhaseContext context, Set<Node> changedNodes) {
+        super.postIteration(graph, context, changedNodes);
+        if (cleanupPhase != null) {
+            cleanupPhase.apply(graph, context);
+        }
+    }
+
+    @Override
+    protected void run(StructuredGraph graph, PhaseContext context) {
+        if (VirtualUtil.matches(graph, EscapeAnalyzeOnly.getValue())) {
+            if (readElimination || graph.hasVirtualizableAllocation()) {
+                runAnalysis(graph, context);
+            }
+        }
+    }
+
+    @Override
+    protected Closure<?> createEffectsClosure(PhaseContext context, ScheduleResult schedule, ControlFlowGraph cfg) {
+        for (VirtualObjectNode virtual : cfg.graph.getNodes(VirtualObjectNode.TYPE)) {
+            virtual.resetObjectId();
+        }
+        assert schedule != null;
+        if (readElimination) {
+            return new PEReadEliminationClosure(schedule, context.getMetaAccess(), context.getConstantReflection(), context.getConstantFieldProvider(), context.getLowerer());
+        } else {
+            return new PartialEscapeClosure.Final(schedule, context.getMetaAccess(), context.getConstantReflection(), context.getConstantFieldProvider(), context.getLowerer());
+        }
+    }
+
+    @Override
+    public boolean checkContract() {
+        return false;
+    }
+
+}