/*

 * Copyright (c) 2013, 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.

 */

import java.util.function.IntPredicate;

/**

 * @test NonTieredLevelsTest

 * @library /testlibrary /testlibrary/whitebox /compiler/whitebox

 * @build NonTieredLevelsTest

 * @run main ClassFileInstaller sun.hotspot.WhiteBox

 * @run main/othervm -Xbootclasspath/a:. -XX:-TieredCompilation

 *                   -XX:+UnlockDiagnosticVMOptions -XX:+WhiteBoxAPI

 *                   -XX:CompileCommand=compileonly,TestCase$Helper::*

 *                   NonTieredLevelsTest

 * @summary Verify that only one level can be used

 * @author igor.ignatyev@oracle.com

 */

public class NonTieredLevelsTest extends CompLevelsTest {

    private static final int AVAILABLE_COMP_LEVEL;

    private static final IntPredicate IS_AVAILABLE_COMPLEVEL;

    static {

        String vmName = System.getProperty("java.vm.name");

        if (vmName.endsWith(" Server VM")) {

            AVAILABLE_COMP_LEVEL = COMP_LEVEL_FULL_OPTIMIZATION;

            IS_AVAILABLE_COMPLEVEL = x -> x == COMP_LEVEL_FULL_OPTIMIZATION;

        } else if (vmName.endsWith(" Client VM")

                || vmName.endsWith(" Minimal VM")) {

            AVAILABLE_COMP_LEVEL = COMP_LEVEL_SIMPLE;

            IS_AVAILABLE_COMPLEVEL = x -> x >= COMP_LEVEL_SIMPLE

                    && x <= COMP_LEVEL_FULL_PROFILE;

        } else {

            throw new RuntimeException("Unknown VM: " + vmName);

        }

    }

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

        if (TIERED_COMPILATION) {

            System.err.println("Test isn't applicable w/ enabled "

                    + "TieredCompilation. Skip test.");

            return;

        }

        for (TestCase test : TestCase.values()) {

            new NonTieredLevelsTest(test).runTest();

        }

    }

    private NonTieredLevelsTest(TestCase testCase) {

        super(testCase);

        // to prevent inlining of #method

        WHITE_BOX.testSetDontInlineMethod(method, true);

    }

    @Override

    protected void test() throws Exception {

        checkNotCompiled();

        compile();

        checkCompiled();

        int compLevel = getCompLevel();

        checkLevel(AVAILABLE_COMP_LEVEL, compLevel);

        int bci = WHITE_BOX.getMethodEntryBci(method);

        deoptimize();

        if (!testCase.isOsr) {

            for (int level = 1; level <= COMP_LEVEL_MAX; ++level) {

                if (IS_AVAILABLE_COMPLEVEL.test(level)) {

                    testAvailableLevel(level, bci);

                } else {

                    testUnavailableLevel(level, bci);

                }

            }

        } else {

            System.out.println("skip other levels testing in OSR");

            testAvailableLevel(AVAILABLE_COMP_LEVEL, bci);

        }

    }

}