/*

 * 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.

 */

/*

 * @test MakeMethodNotCompilableTest

 * @library /testlibrary /testlibrary/whitebox

 * @build MakeMethodNotCompilableTest

 * @run main ClassFileInstaller sun.hotspot.WhiteBox

 * @summary testing of WB::makeMethodNotCompilable()

 * @author igor.ignatyev@oracle.com

 */

public class MakeMethodNotCompilableTest extends CompilerWhiteBoxTest {

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

        if (args.length == 0) {

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

                new MakeMethodNotCompilableTest(test).runTest();

            }

        } else {

            for (String name : args) {

                new MakeMethodNotCompilableTest(

                        TestCase.valueOf(name)).runTest();

            }

        }

    }

    public MakeMethodNotCompilableTest(TestCase testCase) {

        super(testCase);

        // to prevent inlining of #method

        WHITE_BOX.testSetDontInlineMethod(method, true);

    }

    /**

     * Tests {@code WB::makeMethodNotCompilable()} by calling it before

     * compilation and checking that method isn't compiled. Also

     * checks that WB::clearMethodState() clears no-compilable flags. For

     * tiered, additional checks for all available levels are conducted.

     *

     * @throws Exception if one of the checks fails.

     */

    @Override

    protected void test() throws Exception {

        checkNotCompiled();

            throw new RuntimeException(method + " must be compilable");

        }

        if (TIERED_COMPILATION) {

            final int tierLimit = TIERED_STOP_AT_LEVEL + 1;

            for (int testedTier = 1; testedTier < tierLimit; ++testedTier) {

                testTier(testedTier);

            }

            for (int testedTier = 1; testedTier < tierLimit; ++testedTier) {

                    throw new RuntimeException(method

                            + " must be not compilable at level" + testedTier);

                }

                checkNotCompiled();

                    System.out.println(method

                            + " is not compilable after level " + testedTier);

                }

            }

        } else {

            compile();

            checkCompiled();

                throw new RuntimeException(method

                        + " must be not compilable at CompLevel::CompLevel_any,"

                        + " after it is not compilable at " + compLevel);

            }

            WHITE_BOX.clearMethodState(method);

            // nocompilable at opposite level must make no sense

            int oppositeLevel;

            if (isC1Compile(compLevel)) {

              oppositeLevel = COMP_LEVEL_FULL_OPTIMIZATION;

            } else {

              oppositeLevel = COMP_LEVEL_SIMPLE;

            }

                  throw new RuntimeException(method

                        + " must be compilable at CompLevel::CompLevel_any,"

                        + " even it is not compilable at opposite level ["

                        + compLevel + "]");

            }

                  throw new RuntimeException(method

                        + " must be compilable at level " + compLevel

                        + ", even it is not compilable at opposite level ["

                        + compLevel + "]");

            }

        }

        // clearing after tiered/non-tiered tests

        // WB.clearMethodState() must reset no-compilable flags

        WHITE_BOX.clearMethodState(method);

            throw new RuntimeException(method

                    + " is not compilable after clearMethodState()");

        }

            throw new RuntimeException(method + " must be not compilable");

        }

        compile();

        checkNotCompiled();

            throw new RuntimeException(method + " must be not compilable");

        }

        // WB.clearMethodState() must reset no-compilable flags

        WHITE_BOX.clearMethodState(method);

            throw new RuntimeException(method

                    + " is not compilable after clearMethodState()");

        }

        compile();

        checkCompiled();

    }

    // separately tests each tier

    private void testTier(int testedTier) {

            throw new RuntimeException(method

                    + " is not compilable on start");

        }

        // tests for all other tiers

        for (int anotherTier = 1, tierLimit = TIERED_STOP_AT_LEVEL + 1;

                    anotherTier < tierLimit; ++anotherTier) {

            if (sameCompile(testedTier, anotherTier)) {

                if (isCompilable) {

                    throw new RuntimeException(method

                            + " must be not compilable at level " + anotherTier

                            + ", if it is not compilable at " + testedTier);

                }

                checkNotCompiled();

            } else {

                if (!isCompilable) {

                    throw new RuntimeException(method

                            + " must be compilable at level " + anotherTier

                            + ", even if it is not compilable at "

                            + testedTier);

                }

                checkCompiled();

            }

                throw new RuntimeException(method

                        + " must be compilable at 'CompLevel::CompLevel_any'"

                        + ", if it is not compilable only at " + testedTier);

            }

        }

        // clear state after test

        WHITE_BOX.clearMethodState(method);

            throw new RuntimeException(method

                    + " is not compilable after clearMethodState()");

        }

    }

    private boolean sameCompile(int level1, int level2) {

        if (level1 == level2) {

            return true;

        }

        if (isC1Compile(level1) && isC1Compile(level2)) {

            return true;

        }

        if (isC2Compile(level1) && isC2Compile(level2)) {

            return true;

        }

        return false;

    }

}