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 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
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 * 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).
 *
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 * 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
 * @bug 8072753
 * @summary Inner loop induction variable increment occurs before compare which causes integer overflow
 * @run main/othervm CountedLoopProblem
 *
 */

import java.util.*;

public class CountedLoopProblem {
    public static void main(String[] args) throws Exception {
        Random r = new Random(42);
        int x = 0;
        StringBuilder sb = new StringBuilder();
        for(int i = 0; i < 1000000; ++i) {
            int v = Math.abs(r.nextInt());
            sb.append('+').append(v).append('\n');
            x += v;
            // To trigger the problem we must OSR in the following loop
            // To make the problem 100% reproducible run with -XX:-TieredCompilation -XX:OSROnlyBCI=62
            while(x < 0) x += 1000000000;
            sb.append('=').append(x).append('\n');
        }
        if (sb.toString().hashCode() != 0xaba94591) {
            throw new Exception("Unexpected result");
        }
    }
}