/*

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 * 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 EnqueueMethodForCompilationTest

 * @bug 8006683 8007288 8022832

 * @summary testing of WB::enqueueMethodForCompilation()

 * @library /test/lib /

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

 *          java.management

 * @build sun.hotspot.WhiteBox

 * @run driver ClassFileInstaller sun.hotspot.WhiteBox

 *                                sun.hotspot.WhiteBox$WhiteBoxPermission

 * @run main/othervm -Xbootclasspath/a:. -Xmixed -XX:+UnlockDiagnosticVMOptions

 *                   -XX:+WhiteBoxAPI -XX:+PrintCompilation -XX:-UseCounterDecay

 *                   compiler.whitebox.EnqueueMethodForCompilationTest

 */

package compiler.whitebox;

public class EnqueueMethodForCompilationTest extends CompilerWhiteBoxTest {

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

        String directive =

                "[{ match:\"*SimpleTestCaseHelper.*\", BackgroundCompilation: false }, " +

                " { match:\"*.*\", inline:\"-*SimpleTestCaseHelper.*\"}]";

        if (WHITE_BOX.addCompilerDirective(directive) != 2) {

            throw new RuntimeException("Could not add directive");

        }

        try {

            CompilerWhiteBoxTest.main(EnqueueMethodForCompilationTest::new, args);

        } finally {

            WHITE_BOX.removeCompilerDirective(2);

        }

    }

    private EnqueueMethodForCompilationTest(TestCase testCase) {

        super(testCase);

        // to prevent inlining of #method

        WHITE_BOX.testSetDontInlineMethod(method, true);

    }

    @Override

    protected void test() throws Exception {

        checkNotCompiled();

        // method can not be compiled on level 'none'

        WHITE_BOX.enqueueMethodForCompilation(method, COMP_LEVEL_NONE);

        if (isCompilable(COMP_LEVEL_NONE)) {

            throw new RuntimeException(method

                    + " is compilable at level COMP_LEVEL_NONE");

        }

        checkNotCompiled();

        // COMP_LEVEL_ANY is inapplicable as level for compilation

        WHITE_BOX.enqueueMethodForCompilation(method, COMP_LEVEL_ANY);

        checkNotCompiled();

        // not existing comp level

        WHITE_BOX.enqueueMethodForCompilation(method, 42);

        checkNotCompiled();

        compile();

        checkCompiled();

        int compLevel = getCompLevel();

        int bci = WHITE_BOX.getMethodEntryBci(method);

        deoptimize();

        checkNotCompiled();

        WHITE_BOX.clearMethodState(method);

        if (!WHITE_BOX.enqueueMethodForCompilation(method, compLevel, bci)) {

           throw new RuntimeException(method

                    + " could not be enqueued for compilation");

        }

        checkCompiled();

        deoptimize();

        checkNotCompiled();

        compile();

        checkCompiled();

        deoptimize();

        checkNotCompiled();

    }

}