--- /dev/null	2017-01-22 10:16:57.869617664 -0800
+++ new/src/jdk.internal.vm.compiler/share/classes/org.graalvm.compiler.asm.test/src/org/graalvm/compiler/asm/test/AssemblerTest.java	2017-02-15 16:56:39.387517278 -0800
@@ -0,0 +1,118 @@
+/*
+ * 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.asm.test;
+
+import static org.graalvm.compiler.core.common.CompilationRequestIdentifier.asCompilationRequest;
+
+import java.lang.reflect.Method;
+
+import org.junit.Assert;
+
+import org.graalvm.compiler.api.test.Graal;
+import org.graalvm.compiler.code.CompilationResult;
+import org.graalvm.compiler.code.DisassemblerProvider;
+import org.graalvm.compiler.core.common.CompilationIdentifier;
+import org.graalvm.compiler.core.target.Backend;
+import org.graalvm.compiler.debug.Debug;
+import org.graalvm.compiler.debug.Debug.Scope;
+import org.graalvm.compiler.nodes.StructuredGraph;
+import org.graalvm.compiler.nodes.StructuredGraph.AllowAssumptions;
+import org.graalvm.compiler.runtime.RuntimeProvider;
+import org.graalvm.compiler.serviceprovider.GraalServices;
+import org.graalvm.compiler.test.GraalTest;
+
+import jdk.vm.ci.code.CallingConvention;
+import jdk.vm.ci.code.CodeCacheProvider;
+import jdk.vm.ci.code.InstalledCode;
+import jdk.vm.ci.code.InvalidInstalledCodeException;
+import jdk.vm.ci.code.RegisterConfig;
+import jdk.vm.ci.code.TargetDescription;
+import jdk.vm.ci.meta.MetaAccessProvider;
+import jdk.vm.ci.meta.ResolvedJavaMethod;
+import jdk.vm.ci.runtime.JVMCI;
+import jdk.vm.ci.runtime.JVMCIBackend;
+
+public abstract class AssemblerTest extends GraalTest {
+
+    private final MetaAccessProvider metaAccess;
+    protected final CodeCacheProvider codeCache;
+    private final Backend backend;
+
+    public interface CodeGenTest {
+        byte[] generateCode(CompilationResult compResult, TargetDescription target, RegisterConfig registerConfig, CallingConvention cc);
+    }
+
+    public AssemblerTest() {
+        JVMCIBackend providers = JVMCI.getRuntime().getHostJVMCIBackend();
+        this.metaAccess = providers.getMetaAccess();
+        this.codeCache = providers.getCodeCache();
+        this.backend = Graal.getRequiredCapability(RuntimeProvider.class).getHostBackend();
+    }
+
+    public MetaAccessProvider getMetaAccess() {
+        return metaAccess;
+    }
+
+    @SuppressWarnings("try")
+    protected InstalledCode assembleMethod(Method m, CodeGenTest test) {
+        ResolvedJavaMethod method = getMetaAccess().lookupJavaMethod(m);
+        try (Scope s = Debug.scope("assembleMethod", method, codeCache)) {
+            RegisterConfig registerConfig = codeCache.getRegisterConfig();
+            CompilationIdentifier compilationId = backend.getCompilationIdentifier(method);
+            CallingConvention cc = backend.newLIRGenerationResult(compilationId, null, null, new StructuredGraph(method, AllowAssumptions.NO, compilationId), null).getCallingConvention();
+
+            CompilationResult compResult = new CompilationResult();
+            byte[] targetCode = test.generateCode(compResult, codeCache.getTarget(), registerConfig, cc);
+            compResult.setTargetCode(targetCode, targetCode.length);
+            compResult.setTotalFrameSize(0);
+            compResult.close();
+
+            InstalledCode code = backend.addInstalledCode(method, asCompilationRequest(compilationId), compResult);
+
+            for (DisassemblerProvider dis : GraalServices.load(DisassemblerProvider.class)) {
+                String disasm1 = dis.disassembleCompiledCode(codeCache, compResult);
+                Assert.assertTrue(compResult.toString(), disasm1 == null || disasm1.length() > 0);
+                String disasm2 = dis.disassembleInstalledCode(codeCache, compResult, code);
+                Assert.assertTrue(code.toString(), disasm2 == null || disasm2.length() > 0);
+            }
+            return code;
+        } catch (Throwable e) {
+            throw Debug.handle(e);
+        }
+    }
+
+    protected Object runTest(String methodName, CodeGenTest test, Object... args) {
+        Method method = getMethod(methodName);
+        InstalledCode code = assembleMethod(method, test);
+        try {
+            return code.executeVarargs(args);
+        } catch (InvalidInstalledCodeException e) {
+            throw new RuntimeException(e);
+        }
+    }
+
+    protected void assertReturn(String methodName, CodeGenTest test, Object expected, Object... args) {
+        Object actual = runTest(methodName, test, args);
+        Assert.assertEquals("unexpected return value", expected, actual);
+    }
+}