--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/hotspot/src/jdk.internal.vm.compiler/share/classes/org.graalvm.compiler.loop.phases/src/org/graalvm/compiler/loop/phases/LoopPeelingPhase.java	Thu Feb 16 15:46:09 2017 -0800
@@ -0,0 +1,62 @@
+/*
+ * Copyright (c) 2012, 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.loop.LoopEx;
+import org.graalvm.compiler.loop.LoopPolicies;
+import org.graalvm.compiler.loop.LoopsData;
+import org.graalvm.compiler.nodes.StructuredGraph;
+import org.graalvm.compiler.phases.tiers.PhaseContext;
+
+public class LoopPeelingPhase extends LoopPhase<LoopPolicies> {
+
+    public LoopPeelingPhase(LoopPolicies policies) {
+        super(policies);
+    }
+
+    @Override
+    @SuppressWarnings("try")
+    protected void run(StructuredGraph graph, PhaseContext context) {
+        if (graph.hasLoops()) {
+            LoopsData data = new LoopsData(graph);
+            try (Debug.Scope s = Debug.scope("peeling", data.getCFG())) {
+                for (LoopEx loop : data.outerFirst()) {
+                    if (getPolicies().shouldPeel(loop, data.getCFG(), context.getMetaAccess())) {
+                        Debug.log("Peeling %s", loop);
+                        LoopTransformations.peel(loop);
+                        Debug.dump(Debug.INFO_LOG_LEVEL, graph, "Peeling %s", loop);
+                    }
+                }
+                data.deleteUnusedNodes();
+            } catch (Throwable t) {
+                throw Debug.handle(t);
+            }
+        }
+    }
+
+    @Override
+    public float codeSizeIncrease() {
+        return 5.0f;
+    }
+}