| /* |
| * Copyright (c) 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.test; |
| |
| import org.junit.Assert; |
| |
| import org.graalvm.compiler.bytecode.Bytecode; |
| import org.graalvm.compiler.bytecode.BytecodeStream; |
| import org.graalvm.compiler.bytecode.ResolvedJavaMethodBytecode; |
| import org.graalvm.compiler.core.target.Backend; |
| import org.graalvm.compiler.core.test.GraalCompilerTest; |
| import org.graalvm.compiler.debug.GraalError; |
| import org.graalvm.compiler.hotspot.CompilationTask; |
| import org.graalvm.compiler.hotspot.HotSpotGraalCompiler; |
| import org.graalvm.compiler.java.BciBlockMapping; |
| import org.graalvm.compiler.java.BciBlockMapping.BciBlock; |
| import org.graalvm.compiler.nodes.StructuredGraph.AllowAssumptions; |
| |
| import jdk.vm.ci.code.Architecture; |
| import jdk.vm.ci.hotspot.HotSpotCompilationRequest; |
| import jdk.vm.ci.hotspot.HotSpotCompilationRequestResult; |
| import jdk.vm.ci.hotspot.HotSpotJVMCIRuntime; |
| import jdk.vm.ci.hotspot.HotSpotJVMCIRuntimeProvider; |
| import jdk.vm.ci.hotspot.HotSpotResolvedJavaMethod; |
| import jdk.vm.ci.meta.ResolvedJavaMethod; |
| |
| public abstract class GraalOSRTestBase extends GraalCompilerTest { |
| |
| protected void testOSR(String methodName) { |
| ResolvedJavaMethod method = getResolvedJavaMethod(methodName); |
| testOSR(method); |
| } |
| |
| protected void testOSR(ResolvedJavaMethod method) { |
| // invalidate any existing compiled code |
| method.reprofile(); |
| compileOSR(method); |
| Result result = executeExpected(method, null); |
| checkResult(result); |
| } |
| |
| private static void compile(ResolvedJavaMethod method, int bci) { |
| HotSpotJVMCIRuntimeProvider runtime = HotSpotJVMCIRuntime.runtime(); |
| long jvmciEnv = 0L; |
| HotSpotCompilationRequest request = new HotSpotCompilationRequest((HotSpotResolvedJavaMethod) method, bci, jvmciEnv); |
| HotSpotGraalCompiler compiler = (HotSpotGraalCompiler) runtime.getCompiler(); |
| CompilationTask task = new CompilationTask(runtime, compiler, request, true, true); |
| HotSpotCompilationRequestResult result = task.runCompilation(); |
| if (result.getFailure() != null) { |
| throw new GraalError(result.getFailureMessage()); |
| } |
| } |
| |
| /** |
| * Returns the target BCI of the first bytecode backedge. This is where HotSpot triggers |
| * on-stack-replacement in case the backedge counter overflows. |
| */ |
| private static int getBackedgeBCI(ResolvedJavaMethod method) { |
| Bytecode code = new ResolvedJavaMethodBytecode(method); |
| BytecodeStream stream = new BytecodeStream(code.getCode()); |
| BciBlockMapping bciBlockMapping = BciBlockMapping.create(stream, code); |
| assert bciBlockMapping.getLoopCount() == 1 : "Expected exactly one loop " + method; |
| |
| for (BciBlock block : bciBlockMapping.getBlocks()) { |
| int bci = block.startBci; |
| for (BciBlock succ : block.getSuccessors()) { |
| int succBci = succ.startBci; |
| if (succBci < bci) { |
| // back edge |
| return succBci; |
| } |
| } |
| } |
| return -1; |
| } |
| |
| private static void checkResult(Result result) { |
| Assert.assertNull("Unexpected exception", result.exception); |
| Assert.assertNotNull(result.returnValue); |
| Assert.assertTrue(result.returnValue instanceof ReturnValue); |
| Assert.assertEquals(ReturnValue.SUCCESS, result.returnValue); |
| } |
| |
| private void compileOSR(ResolvedJavaMethod method) { |
| int bci = getBackedgeBCI(method); |
| assert bci != -1; |
| // ensure eager resolving |
| parseEager(method, AllowAssumptions.YES); |
| compile(method, bci); |
| } |
| |
| protected enum ReturnValue { |
| SUCCESS, |
| FAILURE |
| } |
| |
| public GraalOSRTestBase() { |
| super(); |
| } |
| |
| public GraalOSRTestBase(Class<? extends Architecture> arch) { |
| super(arch); |
| } |
| |
| public GraalOSRTestBase(Backend backend) { |
| super(backend); |
| } |
| |
| } |