Mercurial > hg > truffle
view test/compiler/rtm/locking/TestUseRTMForStackLocks.java @ 18913:51680f58e681
Clean up in Kind class. Introduce Kind#getSlotCount and Kind#needsTwoSlots methods.
author | Thomas Wuerthinger <thomas.wuerthinger@oracle.com> |
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date | Tue, 20 Jan 2015 16:40:45 +0100 |
parents | ba8268c23fa2 |
children |
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/* * Copyright (c) 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. * */ /** * @test * @bug 8031320 * @summary Verify that rtm locking is used for stack locks. * @library /testlibrary /testlibrary/whitebox /compiler/testlibrary * @build TestUseRTMForStackLocks * @run main ClassFileInstaller sun.hotspot.WhiteBox * @run main/othervm -Xbootclasspath/a:. -XX:+UnlockDiagnosticVMOptions * -XX:+WhiteBoxAPI TestUseRTMForStackLocks */ import java.util.List; import com.oracle.java.testlibrary.*; import com.oracle.java.testlibrary.cli.CommandLineOptionTest; import com.oracle.java.testlibrary.cli.predicate.AndPredicate; import rtm.*; import rtm.predicate.SupportedCPU; import rtm.predicate.SupportedVM; /** * Test verifies that RTM-based lock elision could be used for stack locks * by calling compiled method that use RTM-based lock elision and using * stack lock. * Compiled method invoked {@code AbortProvoker.DEFAULT_ITERATIONS} times, * so total locks count should be the same. * This test could also be affected by retriable aborts, so -XX:RTMRetryCount=0 * is used. For more information abort that issue see * {@link TestUseRTMAfterLockInflation}. */ public class TestUseRTMForStackLocks extends CommandLineOptionTest { private static final boolean INFLATE_MONITOR = false; private TestUseRTMForStackLocks() { super(new AndPredicate(new SupportedCPU(), new SupportedVM())); } @Override protected void runTestCases() throws Throwable { AbortProvoker provoker = AbortType.XABORT.provoker(); RTMLockingStatistics lock; OutputAnalyzer outputAnalyzer = RTMTestBase.executeRTMTest( provoker, "-XX:+UseRTMForStackLocks", "-XX:RTMTotalCountIncrRate=1", "-XX:RTMRetryCount=0", "-XX:+PrintPreciseRTMLockingStatistics", AbortProvoker.class.getName(), AbortType.XABORT.toString(), Boolean.toString(TestUseRTMForStackLocks.INFLATE_MONITOR)); outputAnalyzer.shouldHaveExitValue(0); List<RTMLockingStatistics> statistics = RTMLockingStatistics.fromString( provoker.getMethodWithLockName(), outputAnalyzer.getOutput()); Asserts.assertEQ(statistics.size(), 1, "VM output should contain exactly one rtm locking statistics " + "entry for method " + provoker.getMethodWithLockName()); lock = statistics.get(0); Asserts.assertEQ(lock.getTotalLocks(), AbortProvoker.DEFAULT_ITERATIONS, "Total locks count should be greater or equal to " + AbortProvoker.DEFAULT_ITERATIONS); } public static void main(String args[]) throws Throwable { new TestUseRTMForStackLocks().test(); } }