--- /dev/null	2017-01-22 10:16:57.869617664 -0800
+++ new/src/jdk.internal.vm.compiler/share/classes/org.graalvm.compiler.phases/src/org/graalvm/compiler/phases/tiers/Suites.java	2017-02-15 17:08:32.642623486 -0800
@@ -0,0 +1,77 @@
+/*
+ * Copyright (c) 2013, 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.phases.tiers;
+
+import org.graalvm.compiler.lir.phases.LIRSuites;
+import org.graalvm.compiler.phases.PhaseSuite;
+
+public final class Suites {
+
+    private final PhaseSuite<HighTierContext> highTier;
+    private final PhaseSuite<MidTierContext> midTier;
+    private final PhaseSuite<LowTierContext> lowTier;
+    private boolean immutable;
+
+    public PhaseSuite<HighTierContext> getHighTier() {
+        return highTier;
+    }
+
+    public PhaseSuite<MidTierContext> getMidTier() {
+        return midTier;
+    }
+
+    public PhaseSuite<LowTierContext> getLowTier() {
+        return lowTier;
+    }
+
+    public Suites(PhaseSuite<HighTierContext> highTier, PhaseSuite<MidTierContext> midTier, PhaseSuite<LowTierContext> lowTier) {
+        this.highTier = highTier;
+        this.midTier = midTier;
+        this.lowTier = lowTier;
+    }
+
+    public static Suites createSuites(CompilerConfiguration config) {
+        return new Suites(config.createHighTier(), config.createMidTier(), config.createLowTier());
+    }
+
+    public static LIRSuites createLIRSuites(CompilerConfiguration config) {
+        return new LIRSuites(config.createPreAllocationOptimizationStage(), config.createAllocationStage(), config.createPostAllocationOptimizationStage());
+    }
+
+    public boolean isImmutable() {
+        return immutable;
+    }
+
+    public synchronized void setImmutable() {
+        if (!immutable) {
+            highTier.setImmutable();
+            midTier.setImmutable();
+            lowTier.setImmutable();
+            immutable = true;
+        }
+    }
+
+    public Suites copy() {
+        return new Suites(highTier.copy(), midTier.copy(), lowTier.copy());
+    }
+}