/*

 * Copyright (c) 2017, Oracle and/or its affiliates. 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

 * @bug 8181872

 *

 * @run main/othervm -XX:+IgnoreUnrecognizedVMOptions

 *                   -XX:CompileThreshold=100 -XX:+TieredCompilation -XX:TieredStopAtLevel=1

 *                   -XX:-BackgroundCompilation -XX:CompileCommand=dontinline,compiler.c1.MultiplyByMaxInt::test

 *                   compiler.c1.MultiplyByMaxInt

 * @run main/othervm -XX:+IgnoreUnrecognizedVMOptions -XX:-BackgroundCompilation

 *                   -XX:CompileThreshold=100 -XX:+TieredCompilation -XX:TieredStopAtLevel=3

 *                   -XX:CompileCommand=dontinline,compiler.c1.MultiplyByMaxInt::test

 *                   compiler.c1.MultiplyByMaxInt

 */

package compiler.c1;

public class MultiplyByMaxInt {

    static int test(int x) {

        int loops = (x >>> 4) & 7;

        while (loops-- > 0) {

            x = (x * 2147483647) % 16807;

        }

        return x;

    }

    public static void main(String[] args) {

        for (int i = 0; i < 20000; i++) {

            test(i);

        }

    }

}