--- a/graal/com.oracle.graal.compiler.test/src/com/oracle/graal/compiler/test/backend/AllocatorTest.java	Thu Nov 27 16:40:45 2014 +0100
+++ b/graal/com.oracle.graal.compiler.test/src/com/oracle/graal/compiler/test/backend/AllocatorTest.java	Wed Nov 26 19:12:49 2014 +0100
@@ -22,34 +22,25 @@
  */
 package com.oracle.graal.compiler.test.backend;
 
-import static com.oracle.graal.api.code.CodeUtil.*;
-import static com.oracle.graal.compiler.common.GraalOptions.*;
-
 import java.util.*;
 
 import org.junit.*;
 
 import com.oracle.graal.api.code.*;
-import com.oracle.graal.api.code.CallingConvention.Type;
 import com.oracle.graal.api.meta.*;
-import com.oracle.graal.compiler.*;
 import com.oracle.graal.compiler.common.cfg.*;
-import com.oracle.graal.compiler.test.*;
 import com.oracle.graal.debug.*;
 import com.oracle.graal.debug.Debug.Scope;
 import com.oracle.graal.lir.*;
 import com.oracle.graal.lir.StandardOp.MoveOp;
-import com.oracle.graal.lir.gen.*;
 import com.oracle.graal.nodes.*;
-import com.oracle.graal.phases.*;
-import com.oracle.graal.phases.schedule.*;
 
-public class AllocatorTest extends GraalCompilerTest {
+public class AllocatorTest extends BackendTest {
 
     protected void test(String snippet, final int expectedRegisters, final int expectedRegRegMoves, final int expectedSpillMoves) {
         final StructuredGraph graph = parseEager(snippet);
         try (Scope s = Debug.scope("AllocatorTest", graph, graph.method(), getCodeCache())) {
-            final RegisterStats stats = getRegisterStats(graph);
+            final RegisterStats stats = new RegisterStats(getLIRGenerationResult(graph).getLIR());
             try (Scope s2 = Debug.scope("Assertions", stats.lir)) {
                 Assert.assertEquals("register count", expectedRegisters, stats.registers.size());
                 Assert.assertEquals("reg-reg moves", expectedRegRegMoves, stats.regRegMoves);
@@ -104,20 +95,4 @@
             }
         }
     }
-
-    private RegisterStats getRegisterStats(final StructuredGraph graph) {
-        final Assumptions assumptions = new Assumptions(OptAssumptions.getValue());
-
-        SchedulePhase schedule = null;
-        try (Scope s = Debug.scope("FrontEnd")) {
-            schedule = GraalCompiler.emitFrontEnd(getProviders(), getBackend().getTarget(), graph, assumptions, null, getDefaultGraphBuilderSuite(), OptimisticOptimizations.NONE,
-                            graph.method().getProfilingInfo(), null, getSuites());
-        } catch (Throwable e) {
-            throw Debug.handle(e);
-        }
-
-        CallingConvention cc = getCallingConvention(getCodeCache(), Type.JavaCallee, graph.method(), false);
-        LIRGenerationResult lirGen = GraalCompiler.emitLIR(getBackend(), getBackend().getTarget(), schedule, graph, null, cc, null);
-        return new RegisterStats(lirGen.getLIR());
-    }
 }

--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/graal/com.oracle.graal.compiler.test/src/com/oracle/graal/compiler/test/backend/BackendTest.java	Wed Nov 26 19:12:49 2014 +0100
@@ -0,0 +1,65 @@
+/*
+ * Copyright (c) 2014, 2014, 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 com.oracle.graal.compiler.test.backend;
+
+import static com.oracle.graal.api.code.CodeUtil.*;
+import static com.oracle.graal.compiler.common.GraalOptions.*;
+
+import com.oracle.graal.api.code.*;
+import com.oracle.graal.api.code.CallingConvention.Type;
+import com.oracle.graal.compiler.*;
+import com.oracle.graal.compiler.test.*;
+import com.oracle.graal.debug.*;
+import com.oracle.graal.debug.Debug.Scope;
+import com.oracle.graal.lir.gen.*;
+import com.oracle.graal.nodes.*;
+import com.oracle.graal.phases.*;
+import com.oracle.graal.phases.schedule.*;
+
+public abstract class BackendTest extends GraalCompilerTest {
+
+    public BackendTest() {
+        super();
+    }
+
+    public BackendTest(Class<? extends Architecture> arch) {
+        super(arch);
+    }
+
+    protected LIRGenerationResult getLIRGenerationResult(final StructuredGraph graph) {
+        final Assumptions assumptions = new Assumptions(OptAssumptions.getValue());
+
+        SchedulePhase schedule = null;
+        try (Scope s = Debug.scope("FrontEnd")) {
+            schedule = GraalCompiler.emitFrontEnd(getProviders(), getBackend().getTarget(), graph, assumptions, null, getDefaultGraphBuilderSuite(), OptimisticOptimizations.NONE,
+                            graph.method().getProfilingInfo(), null, getSuites());
+        } catch (Throwable e) {
+            throw Debug.handle(e);
+        }
+
+        CallingConvention cc = getCallingConvention(getCodeCache(), Type.JavaCallee, graph.method(), false);
+        LIRGenerationResult lirGen = GraalCompiler.emitLIR(getBackend(), getBackend().getTarget(), schedule, graph, null, cc, null);
+        return lirGen;
+    }
+
+}