/*

 * Copyright (c) 2019, Oracle and/or its affiliates. All rights reserved.

 * Copyright (c) 2019, Arm Limited. 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 8215792

 * @summary Fix a bug in AArch64 string intrinsics

 *

 * @run main/othervm compiler.intrinsics.Test8215792

 * @run main/othervm -XX:-CompactStrings compiler.intrinsics.Test8215792

 */

package compiler.intrinsics;

public class Test8215792 {

    private static final int ITERATIONS = 10000;

    private static final String pattern = "01234567890123456789";

    public static void main(String[] args) {

        // Repeat many times to trigger compilation

        for (int iter = 0; iter < ITERATIONS; iter++) {

            StringBuilder str1 = new StringBuilder("ABCDEFGHIJKLMNOPQRSTUVWXYZ01234567890123456789");

            StringBuilder str2 = new StringBuilder("\u4f60\u598dCDEFGHIJKLMNOPQRSTUVWXYZ01234567890123456789");

            for (int i = 0; i < 20; i++) {

                // Remove one character from the tail

                str1.setLength(str1.length() - 1);

                str2.setLength(str2.length() - 1);

                // Pattern string should not be found after characters removed from the tail

                if (str1.indexOf(pattern) != -1 || str2.indexOf(pattern) != -1) {

                    System.out.println("FAILED");

                    System.exit(1);

                }

            }

        }

        System.out.println("PASSED");

    }

}