Mercurial > hg > truffle
diff test/compiler/rtm/locking/TestUseRTMForStackLocks.java @ 17873:ba8268c23fa2
8037860: Add tests to cover Intel RTM instructions support
Reviewed-by: kvn, iignatyev
Contributed-by: filipp.zhinkin@oracle.com
author | iignatyev |
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date | Fri, 11 Apr 2014 00:35:23 +0400 |
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--- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/test/compiler/rtm/locking/TestUseRTMForStackLocks.java Fri Apr 11 00:35:23 2014 +0400 @@ -0,0 +1,95 @@ +/* + * 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(); + } +}