/*

 * 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.

 *

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/*

 * @test

 * @bug 8136421

 * @library / /testlibrary /test/lib/

 * @library ../common/patches

 * @modules java.base/jdk.internal.misc

 * @modules jdk.vm.ci/jdk.vm.ci.hotspot

 * @build jdk.vm.ci/jdk.vm.ci.hotspot.CompilerToVMHelper

 * @build compiler.jvmci.compilerToVM.GetMaxCallTargetOffsetTest

 * @run main/othervm -XX:+UnlockExperimentalVMOptions -XX:+EnableJVMCI

 *                   compiler.jvmci.compilerToVM.GetMaxCallTargetOffsetTest

 */

package compiler.jvmci.compilerToVM;

import jdk.vm.ci.hotspot.CompilerToVMHelper;

import jdk.test.lib.Asserts;

public class GetMaxCallTargetOffsetTest {

    public static void main(String args[]) {

        new GetMaxCallTargetOffsetTest().runTest();

    }

    private void runTest() {

        long offset1 = CompilerToVMHelper.getMaxCallTargetOffset(0L);

        Asserts.assertNE(offset1, 0L,

                "Unexpected maxCallTargetOffset for 0L");

        long offset2 = CompilerToVMHelper.getMaxCallTargetOffset(100L);

        Asserts.assertNE(offset2, 0L,

                "Unexpected maxCallTargetOffset for 100L");

        long offset3 = CompilerToVMHelper.getMaxCallTargetOffset(1000000L);

        Asserts.assertNE(offset3, 0L,

                "Unexpected maxCallTargetOffset for 1000000L");

        // there can be 2 same offsets, but not 3

        Asserts.assertFalse(offset1 == offset2 && offset2 == offset3,

                "All 3 offsets are unexpectedly equal: " + offset1);

    }

}