| /* |
| * Copyright (c) 2015, 2018, Oracle and/or its affiliates. All rights reserved. |
| * Copyright 2016 Azul Systems, Inc. All Rights Reserved. |
| * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. |
| * |
| * This code is free software; you can redistribute it and/or modify it |
| * under the terms of the GNU General Public License version 2 only, as |
| * published by the Free Software Foundation. |
| * |
| * This code is distributed in the hope that it will be useful, but WITHOUT |
| * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or |
| * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License |
| * version 2 for more details (a copy is included in the LICENSE file that |
| * accompanied this code). |
| * |
| * You should have received a copy of the GNU General Public License version |
| * 2 along with this work; if not, write to the Free Software Foundation, |
| * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. |
| * |
| * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA |
| * or visit www.oracle.com if you need additional information or have any |
| * questions. |
| */ |
| |
| /** |
| * @test TestOnSpinWaitC1 |
| * @summary (x86 only) checks that java.lang.Thread.onSpinWait is intrinsified |
| * @bug 8147844 |
| * @library /test/lib |
| * @modules java.base/jdk.internal.misc |
| * @requires os.arch=="x86" | os.arch=="amd64" | os.arch=="x86_64" |
| * @requires vm.compiler1.enabled |
| * @run driver compiler.onSpinWait.TestOnSpinWaitC1 |
| */ |
| |
| package compiler.onSpinWait; |
| |
| import jdk.test.lib.process.OutputAnalyzer; |
| import jdk.test.lib.process.ProcessTools; |
| |
| public class TestOnSpinWaitC1 { |
| |
| public static void main(String[] args) throws Exception { |
| |
| // Test C1 compiler |
| ProcessBuilder pb = ProcessTools.createJavaProcessBuilder( |
| "-XX:+IgnoreUnrecognizedVMOptions", "-showversion", |
| "-XX:+TieredCompilation", "-XX:TieredStopAtLevel=1", "-Xbatch", |
| "-XX:+PrintCompilation", "-XX:+UnlockDiagnosticVMOptions", |
| "-XX:+PrintInlining", Launcher.class.getName()); |
| |
| OutputAnalyzer analyzer = new OutputAnalyzer(pb.start()); |
| |
| analyzer.shouldHaveExitValue(0); |
| analyzer.shouldContain("java.lang.Thread::onSpinWait (1 bytes) intrinsic"); |
| } |
| |
| static class Launcher { |
| |
| public static void main(final String[] args) throws Exception { |
| int end = 20_000; |
| |
| for (int i=0; i < end; i++) { |
| test(); |
| } |
| } |
| static void test() { |
| java.lang.Thread.onSpinWait(); |
| } |
| } |
| } |