--- /dev/null	2016-05-31 09:42:47.975716356 -0700
+++ new/src/jdk.vm.compiler/share/classes/org.graalvm.compiler.loop.phases/src/org/graalvm/compiler/loop/phases/ReassociateInvariantPhase.java	2016-12-09 00:54:38.577945380 -0800
@@ -0,0 +1,49 @@
+/*
+ * Copyright (c) 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.loop.phases;
+
+import org.graalvm.compiler.debug.Debug;
+import org.graalvm.compiler.debug.Debug.Scope;
+import org.graalvm.compiler.loop.LoopEx;
+import org.graalvm.compiler.loop.LoopsData;
+import org.graalvm.compiler.nodes.StructuredGraph;
+import org.graalvm.compiler.phases.Phase;
+
+public class ReassociateInvariantPhase extends Phase {
+
+    @SuppressWarnings("try")
+    @Override
+    protected void run(StructuredGraph graph) {
+        if (graph.hasLoops()) {
+            final LoopsData dataReassociate = new LoopsData(graph);
+            try (Scope s = Debug.scope("ReassociateInvariants")) {
+                for (LoopEx loop : dataReassociate.loops()) {
+                    loop.reassociateInvariants();
+                }
+            } catch (Throwable e) {
+                throw Debug.handle(e);
+            }
+            dataReassociate.deleteUnusedNodes();
+        }
+    }
+}