/*

 * 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.

 *

 * 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 8085832

 * @bug 8135069

 * @summary x <= 0 || x > 0 wrongly folded as (x-1) >u -1 and x < 0 || x > -1 wrongly folded as x >u -1

 *

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

 *                   compiler.rangechecks.TestBadFoldCompare

 */

package compiler.rangechecks;

public class TestBadFoldCompare {

    static boolean test1_taken;

    static void helper1(int i, int a, int b, boolean flag) {

        if (flag) {

            if (i <= a || i > b) {

                test1_taken = true;

            }

        }

    }

    static void test1(int i, boolean flag) {

        helper1(i, 0, 0, flag);

    }

    static boolean test2_taken;

    static void helper2(int i, int a, int b, boolean flag) {

        if (flag) {

            if (i > b || i <= a) {

                test2_taken = true;

            }

        }

    }

    static void test2(int i, boolean flag) {

        helper2(i, 0, 0, flag);

    }

    static boolean test3_taken;

    static void helper3(int i, int a, int b, boolean flag) {

        if (flag) {

            if (i < a || i > b - 1) {

                test3_taken = true;

            }

        }

    }

    static void test3(int i, boolean flag) {

        helper3(i, 0, 0, flag);

    }

    static boolean test4_taken;

    static void helper4(int i, int a, int b, boolean flag) {

        if (flag) {

            if (i > b - 1 || i < a) {

                test4_taken = true;

            }

        }

    }

    static void test4(int i, boolean flag) {

        helper4(i, 0, 0, flag);

    }

    static public void main(String[] args) {

        boolean success = true;

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

            helper1(5, 0,  10, (i%2)==0);

            helper1(-1, 0,  10, (i%2)==0);

            helper1(15, 0,  10, (i%2)==0);

            test1(0, false);

        }

        test1_taken = false;

        test1(0, true);

        if (!test1_taken) {

            System.out.println("Test1 failed");

            success = false;

        }

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

            helper2(5, 0,  10, (i%2)==0);

            helper2(-1, 0,  10, (i%2)==0);

            helper2(15, 0,  10, (i%2)==0);

            test2(0, false);

        }

        test2_taken = false;

        test2(0, true);

        if (!test2_taken) {

            System.out.println("Test2 failed");

            success = false;

        }

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

            helper3(5, 0,  10, (i%2)==0);

            helper3(-1, 0,  10, (i%2)==0);

            helper3(15, 0,  10, (i%2)==0);

            test3(0, false);

        }

        test3_taken = false;

        test3(0, true);

        if (!test3_taken) {

            System.out.println("Test3 failed");

            success = false;

        }

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

            helper4(5, 0,  10, (i%2)==0);

            helper4(-1, 0,  10, (i%2)==0);

            helper4(15, 0,  10, (i%2)==0);

            test4(0, false);

        }

        test4_taken = false;

        test4(0, true);

        if (!test4_taken) {

            System.out.println("Test4 failed");

            success = false;

        }

        if (!success) {

            throw new RuntimeException("Some tests failed");

        }

    }

}