/*

 * Copyright (c) 2014, 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 8027422

 * @summary type methods shouldn't always operate on speculative part

 *

 * @run main/othervm -XX:+IgnoreUnrecognizedVMOptions -XX:TypeProfileLevel=222

 *                   -XX:+UseTypeSpeculation -XX:-BackgroundCompilation

 *                   compiler.types.TestSpeculationFailedHigherEqual

 */

package compiler.types;

public class TestSpeculationFailedHigherEqual {

    static class A {

        void m() {}

        int i;

    }

    static class C extends A {

    }

    static C c;

    static A m1(A a, boolean cond) {

        // speculative type for a is C not null

        if (cond ) {

            a = c;

        }

        // speculative type for a is C (may be null)

        int i = a.i;

        return a;

    }

    static public void main(String[] args) {

        C c = new C();

        TestSpeculationFailedHigherEqual.c = c;

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

            m1(c, i%2 == 0);

        }

        System.out.println("TEST PASSED");

    }

}