--- /dev/null	2017-01-22 10:16:57.869617664 -0800
+++ new/src/jdk.internal.vm.compiler/share/classes/org.graalvm.compiler.phases.common/src/org/graalvm/compiler/phases/common/IncrementalCanonicalizerPhase.java	2017-02-15 17:08:10.701662876 -0800
@@ -0,0 +1,61 @@
+/*
+ * Copyright (c) 2013, 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.phases.common;
+
+import org.graalvm.compiler.graph.Graph.NodeEventScope;
+import org.graalvm.compiler.nodes.StructuredGraph;
+import org.graalvm.compiler.phases.BasePhase;
+import org.graalvm.compiler.phases.PhaseSuite;
+import org.graalvm.compiler.phases.common.util.HashSetNodeEventListener;
+import org.graalvm.compiler.phases.tiers.PhaseContext;
+
+/**
+ * A phase suite that applies {@linkplain CanonicalizerPhase canonicalization} to a graph after all
+ * phases in the suite have been applied if any of the phases changed the graph.
+ */
+public class IncrementalCanonicalizerPhase<C extends PhaseContext> extends PhaseSuite<C> {
+
+    private final CanonicalizerPhase canonicalizer;
+
+    public IncrementalCanonicalizerPhase(CanonicalizerPhase canonicalizer) {
+        this.canonicalizer = canonicalizer;
+    }
+
+    public IncrementalCanonicalizerPhase(CanonicalizerPhase canonicalizer, BasePhase<? super C> phase) {
+        this.canonicalizer = canonicalizer;
+        appendPhase(phase);
+    }
+
+    @Override
+    @SuppressWarnings("try")
+    protected void run(StructuredGraph graph, C context) {
+        HashSetNodeEventListener listener = new HashSetNodeEventListener();
+        try (NodeEventScope nes = graph.trackNodeEvents(listener)) {
+            super.run(graph, context);
+        }
+
+        if (!listener.getNodes().isEmpty()) {
+            canonicalizer.applyIncremental(graph, context, listener.getNodes(), null, false);
+        }
+    }
+}