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 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.

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 *

 * This code is distributed in the hope that it will be useful, but WITHOUT

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 * 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

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 *

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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 8138583

 * @summary Add C2 AArch64 Superword support for scalar sum reduction optimizations : float abs & neg test

 * @requires os.arch=="aarch64"

 *

 * @run main/othervm -XX:+IgnoreUnrecognizedVMOptions -XX:LoopUnrollLimit=250

 *      -XX:CompileThresholdScaling=0.1

 *      -XX:+SuperWordReductions

 *      -XX:LoopMaxUnroll=2

 *      compiler.loopopts.superword.SumRedAbsNeg_Double

 * @run main/othervm -XX:+IgnoreUnrecognizedVMOptions -XX:LoopUnrollLimit=250

 *      -XX:CompileThresholdScaling=0.1

 *      -XX:-SuperWordReductions

 *      -XX:LoopMaxUnroll=2

 *      compiler.loopopts.superword.SumRedAbsNeg_Double

 *

 * @run main/othervm -XX:+IgnoreUnrecognizedVMOptions -XX:LoopUnrollLimit=250

 *      -XX:CompileThresholdScaling=0.1

 *      -XX:+SuperWordReductions

 *      -XX:LoopMaxUnroll=4

 *      compiler.loopopts.superword.SumRedAbsNeg_Double

 * @run main/othervm -XX:+IgnoreUnrecognizedVMOptions -XX:LoopUnrollLimit=250

 *      -XX:CompileThresholdScaling=0.1

 *      -XX:-SuperWordReductions

 *      -XX:LoopMaxUnroll=4

 *      compiler.loopopts.superword.SumRedAbsNeg_Double

 *

 * @run main/othervm -XX:+IgnoreUnrecognizedVMOptions -XX:LoopUnrollLimit=250

 *      -XX:CompileThresholdScaling=0.1

 *      -XX:+SuperWordReductions

 *      -XX:LoopMaxUnroll=8

 *      compiler.loopopts.superword.SumRedAbsNeg_Double

 * @run main/othervm -XX:+IgnoreUnrecognizedVMOptions -XX:LoopUnrollLimit=250

 *      -XX:CompileThresholdScaling=0.1

 *      -XX:-SuperWordReductions

 *      -XX:LoopMaxUnroll=8

 *      compiler.loopopts.superword.SumRedAbsNeg_Double

 *

 * @run main/othervm -XX:+IgnoreUnrecognizedVMOptions -XX:LoopUnrollLimit=250

 *      -XX:CompileThresholdScaling=0.1

 *      -XX:+SuperWordReductions

 *      -XX:LoopMaxUnroll=16

 *      compiler.loopopts.superword.SumRedAbsNeg_Double

 * @run main/othervm -XX:+IgnoreUnrecognizedVMOptions -XX:LoopUnrollLimit=250

 *      -XX:CompileThresholdScaling=0.1

 *      -XX:-SuperWordReductions

 *      -XX:LoopMaxUnroll=16

 *      compiler.loopopts.superword.SumRedAbsNeg_Double

 */

package compiler.loopopts.superword;

public class SumRedAbsNeg_Float {

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

        float[] a = new float[256 * 1024];

        float[] b = new float[256 * 1024];

        float[] c = new float[256 * 1024];

        float[] d = new float[256 * 1024];

        sumReductionInit(a, b, c);

        float total = 0;

        float valid = (float) 4.611686E18;

        for (int j = 0; j < 2000; j++) {

            total = sumReductionImplement(a, b, c, d, total);

        }

        if (total == valid) {

            System.out.println("Success");

        } else {

            System.out.println("Invalid sum of elements variable in total: " + total);

            System.out.println("Expected value = " + valid);

            throw new Exception("Failed");

        }

    }

    public static void sumReductionInit(

            float[] a,

            float[] b,

            float[] c) {

        for (int j = 0; j < 1; j++) {

            for (int i = 0; i < a.length; i++) {

                a[i] = i * 1 + j;

                b[i] = i * 1 - j;

                c[i] = i + j;

            }

        }

    }

    public static float sumReductionImplement(

            float[] a,

            float[] b,

            float[] c,

            float[] d,

            float total) {

        for (int i = 0; i < a.length; i++) {

            d[i] = Math.abs(-a[i] * -b[i]) + Math.abs(-a[i] * -c[i]) + Math.abs(-b[i] * -c[i]);

            total += d[i];

        }

        return total;

    }

}