/*

 * Copyright (c) 2011, 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 6796786

 * @summary invalid FP identity transform - (a - b) -> b - a

 *

 * @run main/othervm -Xbatch compiler.c2.Test6796786

 */

package compiler.c2;

public class Test6796786 {

    static volatile float d1;

    static volatile float d2;

    public static void main(String[] args) {

        int total = 0;

        for (int i = 0; i < 100000; i++) {

            if (Float.floatToRawIntBits(- (d1 - d2)) == Float.floatToRawIntBits(-0.0f)) {

                total++;

            }

        }

        if (total != 100000) {

            throw new InternalError();

        }

    }

}