| /* |
| * Copyright (c) 2014, 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. |
| * |
| */ |
| |
| /** |
| * @test |
| * @bug 8031320 |
| * @summary Verify that NoRTMLockEliding option could be applied to |
| * specified method and that such method will not use rtm. |
| * @library /test/lib / |
| * @modules java.base/jdk.internal.misc |
| * java.management |
| * @build sun.hotspot.WhiteBox |
| * @run driver ClassFileInstaller sun.hotspot.WhiteBox |
| * sun.hotspot.WhiteBox$WhiteBoxPermission |
| * @run main/othervm -Xbootclasspath/a:. -XX:+UnlockDiagnosticVMOptions |
| * -XX:+WhiteBoxAPI |
| * compiler.rtm.method_options.TestNoRTMLockElidingOption |
| */ |
| |
| package compiler.rtm.method_options; |
| |
| import compiler.testlibrary.rtm.AbortProvoker; |
| import compiler.testlibrary.rtm.AbortType; |
| import compiler.testlibrary.rtm.RTMLockingStatistics; |
| import compiler.testlibrary.rtm.RTMTestBase; |
| import compiler.testlibrary.rtm.predicate.SupportedCPU; |
| import compiler.testlibrary.rtm.predicate.SupportedVM; |
| import jdk.test.lib.Asserts; |
| import jdk.test.lib.process.OutputAnalyzer; |
| import jdk.test.lib.cli.CommandLineOptionTest; |
| import jdk.test.lib.cli.predicate.AndPredicate; |
| |
| import java.util.List; |
| |
| /** |
| * Test verifies that method tagged with option <i>NoRTMLockElidingOption</i> |
| * will not use RTM-based lock elision. |
| * Test invokes compiled method and checks that no deoptimization with |
| * <i>rtm_state_change</i> reason had happened and that that VM output |
| * does not contain RTM locking statistics for compiled method. |
| */ |
| public class TestNoRTMLockElidingOption extends CommandLineOptionTest { |
| private TestNoRTMLockElidingOption() { |
| super(new AndPredicate(new SupportedCPU(), new SupportedVM())); |
| } |
| |
| @Override |
| public void runTestCases() throws Throwable { |
| verifyOption(false); |
| verifyOption(true); |
| } |
| |
| public void verifyOption(boolean useStackLock) throws Throwable { |
| AbortProvoker provoker = AbortType.XABORT.provoker(); |
| String logFileName = String.format("rtm_deopt_%s_stack_lock.xml", |
| (useStackLock ? "use" : "no")); |
| String methodOption = String.format("-XX:CompileCommand=option," + |
| "%s,NoRTMLockEliding", provoker.getMethodWithLockName()); |
| |
| OutputAnalyzer outputAnalyzer = RTMTestBase.executeRTMTest( |
| logFileName, |
| provoker, |
| CommandLineOptionTest.prepareBooleanFlag("UseRTMForStackLocks", |
| useStackLock), |
| methodOption, |
| "-XX:RTMTotalCountIncrRate=1", |
| "-XX:+UseRTMDeopt", |
| "-XX:+PrintPreciseRTMLockingStatistics", |
| AbortProvoker.class.getName(), |
| AbortType.XABORT.toString(), |
| Boolean.toString(!useStackLock) |
| ); |
| |
| outputAnalyzer.shouldHaveExitValue(0); |
| |
| int firedTraps = RTMTestBase.firedRTMStateChangeTraps(logFileName); |
| |
| Asserts.assertEQ(firedTraps, 0, |
| "No deoptimizations with rtm_state_change reason are expected"); |
| |
| List<RTMLockingStatistics> statistics = RTMLockingStatistics.fromString( |
| provoker.getMethodWithLockName(), outputAnalyzer.getOutput()); |
| |
| Asserts.assertEQ(statistics.size(), 0, |
| "VM output should not contain RTM locking statistics entries " |
| + "for method " + provoker.getMethodWithLockName()); |
| } |
| |
| public static void main(String args[]) throws Throwable { |
| new TestNoRTMLockElidingOption().test(); |
| } |
| } |