1.1 --- /dev/null Thu Jan 01 00:00:00 1970 +0000
1.2 +++ b/test/compiler/rtm/method_options/TestNoRTMLockElidingOption.java Wed Apr 27 01:25:04 2016 +0800
1.3 @@ -0,0 +1,102 @@
1.4 +/*
1.5 + * Copyright (c) 2014, Oracle and/or its affiliates. All rights reserved.
1.6 + * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
1.7 + *
1.8 + * This code is free software; you can redistribute it and/or modify it
1.9 + * under the terms of the GNU General Public License version 2 only, as
1.10 + * published by the Free Software Foundation.
1.11 + *
1.12 + * This code is distributed in the hope that it will be useful, but WITHOUT
1.13 + * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
1.14 + * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
1.15 + * version 2 for more details (a copy is included in the LICENSE file that
1.16 + * accompanied this code).
1.17 + *
1.18 + * You should have received a copy of the GNU General Public License version
1.19 + * 2 along with this work; if not, write to the Free Software Foundation,
1.20 + * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
1.21 + *
1.22 + * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
1.23 + * or visit www.oracle.com if you need additional information or have any
1.24 + * questions.
1.25 + *
1.26 + */
1.27 +
1.28 +/**
1.29 + * @test
1.30 + * @bug 8031320
1.31 + * @summary Verify that NoRTMLockEliding option could be applied to
1.32 + * specified method and that such method will not use rtm.
1.33 + * @library /testlibrary /testlibrary/whitebox /compiler/testlibrary
1.34 + * @build TestNoRTMLockElidingOption
1.35 + * @run main ClassFileInstaller sun.hotspot.WhiteBox
1.36 + * @run main/othervm -Xbootclasspath/a:. -XX:+UnlockDiagnosticVMOptions
1.37 + * -XX:+WhiteBoxAPI TestNoRTMLockElidingOption
1.38 + */
1.39 +
1.40 +import java.util.List;
1.41 +import com.oracle.java.testlibrary.*;
1.42 +import com.oracle.java.testlibrary.cli.CommandLineOptionTest;
1.43 +import com.oracle.java.testlibrary.cli.predicate.AndPredicate;
1.44 +import rtm.*;
1.45 +import rtm.predicate.SupportedCPU;
1.46 +import rtm.predicate.SupportedVM;
1.47 +
1.48 +/**
1.49 + * Test verifies that method tagged with option <i>NoRTMLockElidingOption</i>
1.50 + * will not use RTM-based lock elision.
1.51 + * Test invokes compiled method and checks that no deoptimization with
1.52 + * <i>rtm_state_change</i> reason had happened and that that VM output
1.53 + * does not contain RTM locking statistics for compiled method.
1.54 + */
1.55 +public class TestNoRTMLockElidingOption extends CommandLineOptionTest {
1.56 + private TestNoRTMLockElidingOption() {
1.57 + super(new AndPredicate(new SupportedCPU(), new SupportedVM()));
1.58 + }
1.59 +
1.60 + @Override
1.61 + public void runTestCases() throws Throwable {
1.62 + verifyOption(false);
1.63 + verifyOption(true);
1.64 + }
1.65 +
1.66 + public void verifyOption(boolean useStackLock) throws Throwable {
1.67 + AbortProvoker provoker = AbortType.XABORT.provoker();
1.68 + String logFileName = String.format("rtm_deopt_%s_stack_lock.xml",
1.69 + (useStackLock ? "use" : "no"));
1.70 + String methodOption = String.format("-XX:CompileCommand=option," +
1.71 + "%s,NoRTMLockEliding", provoker.getMethodWithLockName());
1.72 +
1.73 + OutputAnalyzer outputAnalyzer = RTMTestBase.executeRTMTest(
1.74 + logFileName,
1.75 + provoker,
1.76 + CommandLineOptionTest.prepareBooleanFlag("UseRTMForStackLocks",
1.77 + useStackLock),
1.78 + methodOption,
1.79 + "-XX:RTMTotalCountIncrRate=1",
1.80 + "-XX:+UseRTMDeopt",
1.81 + "-XX:+PrintPreciseRTMLockingStatistics",
1.82 + AbortProvoker.class.getName(),
1.83 + AbortType.XABORT.toString(),
1.84 + Boolean.toString(!useStackLock)
1.85 + );
1.86 +
1.87 + outputAnalyzer.shouldHaveExitValue(0);
1.88 +
1.89 + int firedTraps = RTMTestBase.firedRTMStateChangeTraps(logFileName);
1.90 +
1.91 + Asserts.assertEQ(firedTraps, 0,
1.92 + "No deoptimizations with rtm_state_change reason are expected");
1.93 +
1.94 + List<RTMLockingStatistics> statistics = RTMLockingStatistics.fromString(
1.95 + provoker.getMethodWithLockName(), outputAnalyzer.getOutput());
1.96 +
1.97 + Asserts.assertEQ(statistics.size(), 0,
1.98 + "VM output should not contain RTM locking statistics entries "
1.99 + + "for method " + provoker.getMethodWithLockName());
1.100 + }
1.101 +
1.102 + public static void main(String args[]) throws Throwable {
1.103 + new TestNoRTMLockElidingOption().test();
1.104 + }
1.105 +}
