/*

 * Copyright (c) 2015, 2016, 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 8074551

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

 * @library /test/lib

 * @build jdk.test.lib.* jdk.test.lib.process.*

 * @run driver compiler.jsr292.PollutedTrapCounts

 */

package compiler.jsr292;

import jdk.test.lib.process.OutputAnalyzer;

import jdk.test.lib.process.ProcessTools;

import java.lang.invoke.MethodHandle;

import java.lang.invoke.MethodHandles;

import java.lang.invoke.MethodType;

public class PollutedTrapCounts {

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

        ProcessBuilder pb = ProcessTools.createJavaProcessBuilder(

                "-XX:+IgnoreUnrecognizedVMOptions",

                "-XX:-TieredCompilation", "-Xbatch",

                "-XX:PerBytecodeRecompilationCutoff=10", "-XX:PerMethodRecompilationCutoff=10",

                "-XX:+PrintCompilation", "-XX:+UnlockDiagnosticVMOptions", "-XX:+PrintInlining",

                    Test.class.getName());

        OutputAnalyzer analyzer = new OutputAnalyzer(pb.start());

        analyzer.shouldHaveExitValue(0);

        analyzer.shouldNotContain("not compilable (disabled)");

    }

    static class Test {

        public static final MethodHandle test1;

        public static final MethodHandle test2;

        public static final MethodHandle empty;

        static {

            try {

                Class<?> THIS_CLASS = Test.class;

                MethodHandles.Lookup LOOKUP = MethodHandles.lookup();

                test1 = LOOKUP.findStatic(THIS_CLASS, "test1", MethodType.methodType(boolean.class, boolean.class));

                test2 = LOOKUP.findStatic(THIS_CLASS, "test2", MethodType.methodType(boolean.class, boolean.class));

                empty = LOOKUP.findStatic(THIS_CLASS, "empty", MethodType.methodType(void.class, boolean.class));

            } catch(Throwable e) {

                throw new Error(e);

            }

        }

        static boolean test1(boolean b) {

            return b;

        }

        static boolean test2(boolean b) {

            return true;

        }

        static void    empty(boolean b) {}

        static void test(boolean freqValue, boolean removeInlineBlocker) throws Throwable {

            MethodHandle innerGWT = MethodHandles.guardWithTest(test1, empty, empty);

            MethodHandle outerGWT = MethodHandles.guardWithTest(test2, innerGWT, innerGWT);

            // Trigger compilation

            for (int i = 0; i < 20_000; i++) {

                outerGWT.invokeExact(freqValue);

            }

            // Trigger deopt & nmethod invalidation

            outerGWT.invokeExact(!freqValue);

            // Force inline blocker removal on rare-taken path

            if (removeInlineBlocker) {

                for (int i = 0; i < 100; i++) {

                    outerGWT.invokeExact(!freqValue);

                }

            }

            // Trigger recompilation

            for (int i = 0; i < 20_000; i++) {

                outerGWT.invokeExact(freqValue);

            }

        }

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

            boolean freqValue = true;

            boolean removeInlineBlocker = false;

            for (int i = 0; i < 20; i++) {

                test(freqValue, removeInlineBlocker);

                freqValue = !freqValue;

                removeInlineBlocker = !removeInlineBlocker;

            }

        }

    }

}