/*

 * Copyright (c) 2018, 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 8214751

 * @summary Add C2 x86 Superword support for VNNI VPDPWSSD Instruction

 * @requires os.arch=="x86" | os.arch=="i386" | os.arch=="amd64" | os.arch=="x86_64"

 *

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

 *      -XX:CompileThresholdScaling=0.1

 *      -XX:+SuperWord

 *      -XX:LoopMaxUnroll=2

 *      compiler.loopopts.superword.Vec_MulAddS2I

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

 *      -XX:CompileThresholdScaling=0.1

 *      -XX:-SuperWord

 *      -XX:LoopMaxUnroll=2

 *      compiler.loopopts.superword.Vec_MulAddS2I

 *

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

 *      -XX:CompileThresholdScaling=0.1

 *      -XX:+SuperWord

 *      -XX:LoopMaxUnroll=4

 *      compiler.loopopts.superword.Vec_MulAddS2I

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

 *      -XX:CompileThresholdScaling=0.1

 *      -XX:-SuperWord

 *      -XX:LoopMaxUnroll=4

 *      compiler.loopopts.superword.Vec_MulAddS2I

 *

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

 *      -XX:CompileThresholdScaling=0.1

 *      -XX:+SuperWord

 *      -XX:LoopMaxUnroll=8

 *      compiler.loopopts.superword.Vec_MulAddS2I

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

 *      -XX:CompileThresholdScaling=0.1

 *      -XX:-SuperWord

 *      -XX:LoopMaxUnroll=8

 *      compiler.loopopts.superword.Vec_MulAddS2I

 *

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

 *      -XX:CompileThresholdScaling=0.1

 *      -XX:+SuperWord

 *      -XX:LoopMaxUnroll=16

 *      compiler.loopopts.superword.Vec_MulAddS2I

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

 *      -XX:CompileThresholdScaling=0.1

 *      -XX:-SuperWord

 *      -XX:LoopMaxUnroll=16

 *      compiler.loopopts.superword.Vec_MulAddS2I

 */

package compiler.loopopts.superword;

import java.util.Random;

public class Vec_MulAddS2I {

        static final int NUM = 1024;

        static int[] out =  new int[NUM];

        static short[] in1 = new short[2*NUM];

        static short[] in2 = new short[2*NUM];

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

        Vec_MulAddS2IInit(in1, in2);

        int result = 0;

        int valid = 204800000;

        for (int j = 0; j < 10000*512; j++) {

            result = Vec_MulAddS2IImplement(in1, in2, out);

        }

        if (result == valid) {

            System.out.println("Success");

        } else {

            System.out.println("Invalid calculation of element variables in the out array: " + result);

            System.out.println("Expected value for each element of out array = " + valid);

            throw new Exception("Failed");

        }

    }

    public static void Vec_MulAddS2IInit(

            short[] in1,

            short[] in2) {

        for (int i=0; i<2*NUM; i++) {

            in1[i] = (short)4;

            in2[i] = (short)5;

        }

    }

    public static int Vec_MulAddS2IImplement(

            short[] in1,

            short[] in2,

            int[] out) {

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

            out[i] += ((in1[2*i] * in2[2*i]) + (in1[2*i+1] * in2[2*i+1]));

        }

        Random rand = new Random();

        int n = rand.nextInt(NUM-1);

        return out[n];

    }

}