TestNoRTMLockElidingOption.java revision 12158:0fe2815ffa74 
1/*
2 * Copyright (c) 2014, 2016, Oracle and/or its affiliates. All rights reserved.
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 *
15 * You should have received a copy of the GNU General Public License version
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.
18 *
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
21 * questions.
22 */
23
24/**
25 * @test
26 * @bug 8031320
27 * @summary Verify that NoRTMLockEliding option could be applied to
28 *          specified method and that such method will not use rtm.
29 * @library /test/lib /
30 * @modules java.base/jdk.internal.misc
31 *          java.management
32 * @build sun.hotspot.WhiteBox
33 * @run driver ClassFileInstaller sun.hotspot.WhiteBox
34 *                                sun.hotspot.WhiteBox$WhiteBoxPermission
35 * @run main/othervm -Xbootclasspath/a:. -XX:+UnlockDiagnosticVMOptions
36 *                   -XX:+WhiteBoxAPI
37 *                   compiler.rtm.method_options.TestNoRTMLockElidingOption
38 */
39
40package compiler.rtm.method_options;
41
42import compiler.testlibrary.rtm.AbortProvoker;
43import compiler.testlibrary.rtm.AbortType;
44import compiler.testlibrary.rtm.RTMLockingStatistics;
45import compiler.testlibrary.rtm.RTMTestBase;
46import compiler.testlibrary.rtm.predicate.SupportedCPU;
47import compiler.testlibrary.rtm.predicate.SupportedOS;
48import compiler.testlibrary.rtm.predicate.SupportedVM;
49import jdk.test.lib.Asserts;
50import jdk.test.lib.process.OutputAnalyzer;
51import jdk.test.lib.cli.CommandLineOptionTest;
52import jdk.test.lib.cli.predicate.AndPredicate;
53
54import java.util.List;
55
56/**
57 * Test verifies that method tagged with option <i>NoRTMLockElidingOption</i>
58 * will not use RTM-based lock elision.
59 * Test invokes compiled method and checks that no deoptimization with
60 * <i>rtm_state_change</i> reason had happened and that that VM output
61 * does not contain RTM locking statistics for compiled method.
62 */
63public class TestNoRTMLockElidingOption extends CommandLineOptionTest {
64    private TestNoRTMLockElidingOption() {
65        super(new AndPredicate(new SupportedCPU(), new SupportedOS(), new SupportedVM()));
66    }
67
68    @Override
69    public void runTestCases() throws Throwable {
70        verifyOption(false);
71        verifyOption(true);
72    }
73
74    public void verifyOption(boolean useStackLock) throws Throwable {
75        AbortProvoker provoker = AbortType.XABORT.provoker();
76        String logFileName = String.format("rtm_deopt_%s_stack_lock.xml",
77                (useStackLock ? "use" : "no"));
78        String methodOption = String.format("-XX:CompileCommand=option," +
79                "%s,NoRTMLockEliding", provoker.getMethodWithLockName());
80
81        OutputAnalyzer outputAnalyzer = RTMTestBase.executeRTMTest(
82                logFileName,
83                provoker,
84                CommandLineOptionTest.prepareBooleanFlag("UseRTMForStackLocks",
85                        useStackLock),
86                methodOption,
87                "-XX:RTMTotalCountIncrRate=1",
88                "-XX:+UseRTMDeopt",
89                "-XX:+PrintPreciseRTMLockingStatistics",
90                AbortProvoker.class.getName(),
91                AbortType.XABORT.toString(),
92                Boolean.toString(!useStackLock)
93        );
94
95        outputAnalyzer.shouldHaveExitValue(0);
96
97        int firedTraps = RTMTestBase.firedRTMStateChangeTraps(logFileName);
98
99        Asserts.assertEQ(firedTraps, 0,
100                "No deoptimizations with rtm_state_change reason are expected");
101
102        List<RTMLockingStatistics> statistics = RTMLockingStatistics.fromString(
103                provoker.getMethodWithLockName(), outputAnalyzer.getOutput());
104
105        Asserts.assertEQ(statistics.size(), 0,
106                "VM output should not contain RTM locking statistics entries "
107                + "for method " + provoker.getMethodWithLockName());
108    }
109
110    public static void main(String args[]) throws Throwable {
111        new TestNoRTMLockElidingOption().test();
112    }
113}
114