/*

 * Copyright (c) 2014, 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 8066900

 * @summary FP registers are not properly restored by C1 when handling exceptions

 *

 * @run main/othervm -Xbatch compiler.exceptions.SumTest

 */

package compiler.exceptions;

public class SumTest {

    private static class Sum {

        double[] sums;

        /**

         * Construct empty Sum

         */

        public Sum() {

            sums = new double[0];

        }

        /**

         * Return the sum of all numbers added to this Sum

         *

         * @return the sum

         */

        final public double getSum() {

            double sum = 0;

            for (final double s : sums) {

                sum += s;

            }

            return sum;

        }

        /**

         * Add a new number to this Sum

         *

         * @param a number to be added.

         */

        final public void add(double a) {

            try {

                sums[sums.length] = -1; // Cause IndexOutOfBoundsException

            } catch (final IndexOutOfBoundsException e) {

                final double[] oldSums = sums;

                sums = new double[oldSums.length + 1]; // Extend sums

                System.arraycopy(oldSums, 0, sums, 0, oldSums.length);

                sums[oldSums.length] = a; // Append a

            }

        }

    }

    public static void main(String[] args) throws Exception {

        final Sum sum = new Sum();

        for (int i = 1; i <= 10000; ++i) {

            sum.add(1);

            double ii = sum.getSum();

            if (i != ii) {

                throw new Exception("Failure: computed = " + ii + ", expected = " + i);

            }

        }

    }

}