/*

 * Copyright (c) 2015, 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.

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/**

 * @test

 * @bug 8074869

 * @summary C2 code generator can replace -0.0f with +0.0f on Linux

 * @run main ConstFPVectorization 8

 * @author volker.simonis@gmail.com

 *

 */

public class ConstFPVectorization {

    static float[] f = new float[16];

    static double[] d = new double[16];

    static void floatLoop(int count) {

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

            f[i] = -0.0f;

        }

    }

    static void doubleLoop(int count) {

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

            d[i] = -0.0d;

        }

    }

    public static void main(String args[]) {

        for (int i = 0; i < 10_000; i++) {

            floatLoop(Integer.parseInt(args[0]));

            doubleLoop(Integer.parseInt(args[0]));

        }

        for (int i = 0; i < Integer.parseInt(args[0]); i++) {

            if (Float.floatToRawIntBits(f[i]) != Float.floatToRawIntBits(-0.0f))

                throw new Error("Float error at index " + i);

            if (Double.doubleToRawLongBits(d[i]) != Double.doubleToRawLongBits(-0.0d))

                throw new Error("Double error at index " + i);

        }

    }

}