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 * @requires vm.rtm.cpu & vm.rtm.compiler 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 jdk.test.lib.Asserts; 48 import jdk.test.lib.process.OutputAnalyzer; 49 import jdk.test.lib.cli.CommandLineOptionTest; 50 51 import java.util.List; 52 53 /** 54 * Test verifies that method tagged with option <i>NoRTMLockElidingOption</i> 55 * will not use RTM-based lock elision. 56 * Test invokes compiled method and checks that no deoptimization with 57 * <i>rtm_state_change</i> reason had happened and that that VM output 58 * does not contain RTM locking statistics for compiled method. 59 */ 60 public class TestNoRTMLockElidingOption { 61 62 public void runTestCases() throws Throwable { 63 verifyOption(false); 64 verifyOption(true); 65 } 66 67 public void verifyOption(boolean useStackLock) throws Throwable { 68 AbortProvoker provoker = AbortType.XABORT.provoker(); 69 String logFileName = String.format("rtm_deopt_%s_stack_lock.xml", 70 (useStackLock ? "use" : "no")); 71 String methodOption = String.format("-XX:CompileCommand=option," + 72 "%s,NoRTMLockEliding", provoker.getMethodWithLockName()); 73 74 OutputAnalyzer outputAnalyzer = RTMTestBase.executeRTMTest( 75 logFileName, 76 provoker, 77 CommandLineOptionTest.prepareBooleanFlag("UseRTMForStackLocks", 78 useStackLock), 79 methodOption, 80 "-XX:RTMTotalCountIncrRate=1", 81 "-XX:+UseRTMDeopt", 82 "-XX:+PrintPreciseRTMLockingStatistics", 83 AbortProvoker.class.getName(), 84 AbortType.XABORT.toString(), 85 Boolean.toString(!useStackLock) 86 ); 87 88 outputAnalyzer.shouldHaveExitValue(0); 89 90 int firedTraps = RTMTestBase.firedRTMStateChangeTraps(logFileName); 91 92 Asserts.assertEQ(firedTraps, 0, 93 "No deoptimizations with rtm_state_change reason are expected"); 94 95 List<RTMLockingStatistics> statistics = RTMLockingStatistics.fromString( 96 provoker.getMethodWithLockName(), outputAnalyzer.getOutput()); 97 98 Asserts.assertEQ(statistics.size(), 0, 99 "VM output should not contain RTM locking statistics entries " 100 + "for method " + provoker.getMethodWithLockName()); 101 } 102 103 public static void main(String args[]) throws Throwable { 104 new TestNoRTMLockElidingOption().runTestCases(); 105 } 106 }