TestOnSpinWaitEnableDisable.java

/*
 * Copyright (c) 2016, 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.
 *
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 */

/**
 * @test TestOnSpinWaitEnableDisable
 * @summary Test to ensure basic functioning of java.lang.Thread.onSpinWait
 * @bug 8157683
 *
 * @run main compiler.onSpinWait.TestOnSpinWaitEnableDisable
 * @run main/othervm -XX:+UnlockDiagnosticVMOptions -XX:DisableIntrinsic=_onSpinWait
 *                   compiler.onSpinWait.TestOnSpinWaitEnableDisable
 */

package compiler.onSpinWait;

public class TestOnSpinWaitEnableDisable {
    public static void main(String[] args) {
        for (int i = 0; i < 50_000; i++) {
            java.lang.Thread.onSpinWait();
        }
    }
}