/*

 * Copyright (c) 2016, Red Hat, Inc. 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 8162338

 * @summary intrinsify fused mac operations

 * @run main/othervm -XX:-BackgroundCompilation -XX:-BackgroundCompilation -XX:-UseOnStackReplacement TestFMA

 *

 */

import java.lang.annotation.Retention;

import java.lang.annotation.RetentionPolicy;

import java.lang.reflect.Method;

import java.lang.reflect.Modifier;

// Test all fused mac instructions that can be generated

public class TestFMA {

    @Test(args = {5.0F, 10.0F, 7.0F}, res = 57.0F)

    static float test1(float a, float b, float c) {

        return Math.fma(a, b, c);

    }

    @Test(args = {5.0D, 10.0D, 7.0D}, res = 57.0D)

    static double test2(double a, double b, double c) {

        return Math.fma(a, b, c);

    }

    @Test(args = {5.0F, 10.0F, 7.0F}, res = -43.0F)

    static float test3(float a, float b, float c) {

        return Math.fma(-a, b, c);

    }

    @Test(args = {5.0D, 10.0D, 7.0D}, res = -43.0D)

    static double test4(double a, double b, double c) {

        return Math.fma(-a, b, c);

    }

    @Test(args = {5.0F, 10.0F, 7.0F}, res = -43.0F)

    static float test5(float a, float b, float c) {

        return Math.fma(a, -b, c);

    }

    @Test(args = {5.0D, 10.0D, 7.0D}, res = -43.0D)

    static double test6(double a, double b, double c) {

        return Math.fma(a, -b, c);

    }

    @Test(args = {5.0F, 10.0F, 7.0F}, res = -57.0F)

    static float test7(float a, float b, float c) {

        return Math.fma(-a, b, -c);

    }

    @Test(args = {5.0D, 10.0D, 7.0D}, res = -57.0D)

    static double test8(double a, double b, double c) {

        return Math.fma(-a, b, -c);

    }

    @Test(args = {5.0F, 10.0F, 7.0F}, res = -57.0F)

    static float test9(float a, float b, float c) {

        return Math.fma(a, -b, -c);

    }

    @Test(args = {5.0D, 10.0D, 7.0D}, res = -57.0D)

    static double test10(double a, double b, double c) {

        return Math.fma(a, -b, -c);

    }

    @Test(args = {5.0F, 10.0F, 7.0F}, res = 43.0F)

    static float test11(float a, float b, float c) {

        return Math.fma(a, b, -c);

    }

    @Test(args = {5.0D, 10.0D, 7.0D}, res = 43.0D)

    static double test12(double a, double b, double c) {

        return Math.fma(a, b, -c);

    }

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

        TestFMA t = new TestFMA();

        for (Method m : t.getClass().getDeclaredMethods()) {

            if (m.getName().matches("test[0-9]+?")) {

                t.doTest(m);

            }

        }

    }

    @Retention(RetentionPolicy.RUNTIME)

    @interface Test {

        double[] args();

        double res();

    }

    void doTest(Method m) throws Exception {

        String name = m.getName();

        System.out.println("Testing " + name);

        Class retType = m.getReturnType();

        Test test = m.getAnnotation(Test.class);

        double[] args = test.args();

        double expected = test.res();

        for (int i = 0; i < 20000; i++) {

            if (retType == double.class) {

                Object res = m.invoke(null, (double)args[0], (double)args[1], (double)args[2]);

                if ((double)res != expected) {

                    throw new RuntimeException(name + " failed : " + (double)res + " != " + expected);

                }

            } else {

                Object res = m.invoke(null, (float)args[0], (float)args[1], (float)args[2]);

                if ((float)res != (float)expected) {

                    throw new RuntimeException(name + " failed : " + (float)res + " != " + (float)expected);

                }

            }

        }

    }

}