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