TestNoRTMLockElidingOption.java revision 8359:ed6389f70257 
1/*
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3 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
4 *
5 * This code is free software; you can redistribute it and/or modify it
6 * under the terms of the GNU General Public License version 2 only, as
7 * published by the Free Software Foundation.
8 *
9 * This code is distributed in the hope that it will be useful, but WITHOUT
10 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
11 * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
12 * version 2 for more details (a copy is included in the LICENSE file that
13 * accompanied this code).
14 *
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16 * 2 along with this work; if not, write to the Free Software Foundation,
17 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
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19 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
20 * or visit www.oracle.com if you need additional information or have any
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23 */
24
25/**
26 * @test
27 * @bug 8031320
28 * @summary Verify that NoRTMLockEliding option could be applied to
29 *          specified method and that such method will not use rtm.
30 * @library /testlibrary /../../test/lib /compiler/testlibrary
31 * @modules java.base/sun.misc
32 *          java.management
33 * @build TestNoRTMLockElidingOption
34 * @run main ClassFileInstaller sun.hotspot.WhiteBox
35 *                              sun.hotspot.WhiteBox$WhiteBoxPermission
36 * @run main/othervm -Xbootclasspath/a:. -XX:+UnlockDiagnosticVMOptions
37 *                   -XX:+WhiteBoxAPI TestNoRTMLockElidingOption
38 */
39
40import java.util.List;
41import jdk.test.lib.*;
42import jdk.test.lib.cli.CommandLineOptionTest;
43import jdk.test.lib.cli.predicate.AndPredicate;
44import rtm.*;
45import rtm.predicate.SupportedCPU;
46import rtm.predicate.SupportedVM;
47
48/**
49 * Test verifies that method tagged with option <i>NoRTMLockElidingOption</i>
50 * will not use RTM-based lock elision.
51 * Test invokes compiled method and checks that no deoptimization with
52 * <i>rtm_state_change</i> reason had happened and that that VM output
53 * does not contain RTM locking statistics for compiled method.
54 */
55public class TestNoRTMLockElidingOption extends CommandLineOptionTest {
56    private TestNoRTMLockElidingOption() {
57        super(new AndPredicate(new SupportedCPU(), new SupportedVM()));
58    }
59
60    @Override
61    public void runTestCases() throws Throwable {
62        verifyOption(false);
63        verifyOption(true);
64    }
65
66    public void verifyOption(boolean useStackLock) throws Throwable {
67        AbortProvoker provoker = AbortType.XABORT.provoker();
68        String logFileName = String.format("rtm_deopt_%s_stack_lock.xml",
69                (useStackLock ? "use" : "no"));
70        String methodOption = String.format("-XX:CompileCommand=option," +
71                "%s,NoRTMLockEliding", provoker.getMethodWithLockName());
72
73        OutputAnalyzer outputAnalyzer = RTMTestBase.executeRTMTest(
74                logFileName,
75                provoker,
76                CommandLineOptionTest.prepareBooleanFlag("UseRTMForStackLocks",
77                        useStackLock),
78                methodOption,
79                "-XX:RTMTotalCountIncrRate=1",
80                "-XX:+UseRTMDeopt",
81                "-XX:+PrintPreciseRTMLockingStatistics",
82                AbortProvoker.class.getName(),
83                AbortType.XABORT.toString(),
84                Boolean.toString(!useStackLock)
85        );
86
87        outputAnalyzer.shouldHaveExitValue(0);
88
89        int firedTraps = RTMTestBase.firedRTMStateChangeTraps(logFileName);
90
91        Asserts.assertEQ(firedTraps, 0,
92                "No deoptimizations with rtm_state_change reason are expected");
93
94        List<RTMLockingStatistics> statistics = RTMLockingStatistics.fromString(
95                provoker.getMethodWithLockName(), outputAnalyzer.getOutput());
96
97        Asserts.assertEQ(statistics.size(), 0,
98                "VM output should not contain RTM locking statistics entries "
99                + "for method " + provoker.getMethodWithLockName());
100    }
101
102    public static void main(String args[]) throws Throwable {
103        new TestNoRTMLockElidingOption().test();
104    }
105}
106