--- /dev/null	2017-01-22 10:16:57.869617664 -0800
+++ new/src/jdk.internal.vm.compiler/share/classes/org.graalvm.compiler.hotspot/src/org/graalvm/compiler/hotspot/HotSpotBackendFactory.java	2017-02-15 16:59:36.621252028 -0800
@@ -0,0 +1,46 @@
+/*
+ * Copyright (c) 2013, 2016, 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.hotspot;
+
+import org.graalvm.compiler.phases.tiers.CompilerConfiguration;
+
+import jdk.vm.ci.code.Architecture;
+import jdk.vm.ci.hotspot.HotSpotJVMCIRuntimeProvider;
+
+public interface HotSpotBackendFactory {
+
+    /**
+     * Gets the name of this backend factory. This should not include the {@link #getArchitecture()
+     * architecture}. The {@link CompilerConfigurationFactory} can select alternative backends based
+     * on this name.
+     */
+    String getName();
+
+    /**
+     * Gets the class describing the architecture the backend created by this factory is associated
+     * with.
+     */
+    Class<? extends Architecture> getArchitecture();
+
+    HotSpotBackend createBackend(HotSpotGraalRuntimeProvider runtime, CompilerConfiguration compilerConfiguration, HotSpotJVMCIRuntimeProvider jvmciRuntime, HotSpotBackend host);
+}