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.SupportedVM; 49 import jdk.test.lib.Asserts; 50 import jdk.test.lib.process.OutputAnalyzer; 51 import jdk.test.lib.cli.CommandLineOptionTest; 52 import jdk.test.lib.cli.predicate.AndPredicate; 53 54 import 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 */ 63 public class TestNoRTMLockElidingOption extends CommandLineOptionTest { 64 private TestNoRTMLockElidingOption() { 65 super(new AndPredicate(new SupportedCPU(), 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 }