Mercurial > hg > graal-compiler
view test/compiler/rtm/locking/TestUseRTMXendForLockBusy.java @ 21619:b14a218c5471
Fix in the dominator based conditional elimination for the corner case of a loop exit merge.
author | Thomas Wuerthinger <thomas.wuerthinger@oracle.com> |
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date | Sun, 31 May 2015 22:48:50 +0200 |
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 UseRTMXendForLockBusy option affects * method behaviour if lock is busy. * @library /testlibrary /testlibrary/whitebox /compiler/testlibrary * @build TestUseRTMXendForLockBusy * @run main ClassFileInstaller sun.hotspot.WhiteBox * @run main/othervm -Xbootclasspath/a:. -XX:+UnlockDiagnosticVMOptions * -XX:+WhiteBoxAPI TestUseRTMXendForLockBusy */ 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 with +UseRTMXendForLockBusy there will be no aborts * forced by the test. */ public class TestUseRTMXendForLockBusy extends CommandLineOptionTest { private final static int LOCKING_TIME = 5000; private TestUseRTMXendForLockBusy() { super(new AndPredicate(new SupportedVM(), new SupportedCPU())); } @Override protected void runTestCases() throws Throwable { // inflated lock, xabort on lock busy verifyXendForLockBusy(true, false); // inflated lock, xend on lock busy verifyXendForLockBusy(true, true); // stack lock, xabort on lock busy verifyXendForLockBusy(false, false); // stack lock, xend on lock busy verifyXendForLockBusy(false, true); } private void verifyXendForLockBusy(boolean inflateMonitor, boolean useXend) throws Throwable { CompilableTest test = new BusyLock(); OutputAnalyzer outputAnalyzer = RTMTestBase.executeRTMTest( test, CommandLineOptionTest.prepareBooleanFlag("UseRTMForStackLocks", inflateMonitor), CommandLineOptionTest.prepareBooleanFlag( "UseRTMXendForLockBusy", useXend), "-XX:RTMRetryCount=0", "-XX:RTMTotalCountIncrRate=1", "-XX:+PrintPreciseRTMLockingStatistics", BusyLock.class.getName(), Boolean.toString(inflateMonitor), Integer.toString(TestUseRTMXendForLockBusy.LOCKING_TIME) ); outputAnalyzer.shouldHaveExitValue(0); List<RTMLockingStatistics> statistics = RTMLockingStatistics.fromString( test.getMethodWithLockName(), outputAnalyzer.getOutput()); Asserts.assertEQ(statistics.size(), 1, "VM output should contain " + "exactly one rtm locking statistics entry for method " + test.getMethodWithLockName()); long aborts = statistics.get(0).getAborts(AbortType.XABORT); if (useXend) { Asserts.assertEQ(aborts, 0L, "Expected to get no aborts on busy lock"); } else { Asserts.assertGT(aborts, 0L, "Expected to get at least one abort on busy lock"); } } public static void main(String args[]) throws Throwable { new TestUseRTMXendForLockBusy().test(); } }