--- /dev/null	2017-01-22 10:16:57.869617664 -0800
+++ new/src/jdk.internal.vm.compiler/share/classes/org.graalvm.compiler.nodes/src/org/graalvm/compiler/nodes/graphbuilderconf/LoopExplosionPlugin.java	2017-02-15 17:07:31.010925175 -0800
@@ -0,0 +1,65 @@
+/*
+ * 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.nodes.graphbuilderconf;
+
+import jdk.vm.ci.meta.ResolvedJavaMethod;
+
+public interface LoopExplosionPlugin extends GraphBuilderPlugin {
+
+    enum LoopExplosionKind {
+        /**
+         * No loop explosion.
+         */
+        NONE,
+        /**
+         * Fully unroll all loops. The loops must have a known finite number of iterations. If a
+         * loop has multiple loop ends, they are merged so that the subsequent loop iteration is
+         * processed only once. For example, a loop with 4 iterations and 2 loop ends leads to
+         * 1+1+1+1 = 4 copies of the loop body.
+         */
+        FULL_UNROLL,
+        /**
+         * Fully explode all loops. The loops must have a known finite number of iterations. If a
+         * loop has multiple loop ends, they are not merged so that subsequent loop iterations are
+         * processed multiple times. For example, a loop with 4 iterations and 2 loop ends leads to
+         * 1+2+4+8 = 15 copies of the loop body.
+         */
+        FULL_EXPLODE,
+        /**
+         * Like {@link #FULL_EXPLODE}, but in addition explosion does not stop at loop exits. Code
+         * after the loop is duplicated for every loop exit of every loop iteration. For example, a
+         * loop with 4 iterations and 2 loop exits leads to 4 * 2 = 8 copies of the code after the
+         * loop.
+         */
+        FULL_EXPLODE_UNTIL_RETURN,
+        /**
+         * like {@link #FULL_EXPLODE}, but copies of the loop body that have the exact same state
+         * (all local variables have the same value) are merged. This reduces the number of copies
+         * necessary, but can introduce loops again. This kind is useful for bytecode interpreter
+         * loops.
+         */
+        MERGE_EXPLODE
+    }
+
+    LoopExplosionKind loopExplosionKind(ResolvedJavaMethod method);
+}