/*

 * 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

 * @bug 8136421

 * @requires vm.jvmci

 * @library /test/lib /

 * @library ../common/patches

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

 * @modules java.base/jdk.internal.org.objectweb.asm

 *          java.base/jdk.internal.org.objectweb.asm.tree

 *          jdk.internal.vm.ci/jdk.vm.ci.hotspot

 *          jdk.internal.vm.ci/jdk.vm.ci.code

 *          jdk.internal.vm.ci/jdk.vm.ci.runtime

 *

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

 * @build compiler.jvmci.compilerToVM.InvalidateInstalledCodeTest

 * @build sun.hotspot.WhiteBox

 * @run driver ClassFileInstaller sun.hotspot.WhiteBox

 *                                sun.hotspot.WhiteBox$WhiteBoxPermission

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

 *                   -XX:+UnlockDiagnosticVMOptions -XX:+WhiteBoxAPI

 *                   -XX:+UnlockExperimentalVMOptions -XX:+EnableJVMCI

 *                   compiler.jvmci.compilerToVM.InvalidateInstalledCodeTest

 */

package compiler.jvmci.compilerToVM;

import compiler.jvmci.common.CTVMUtilities;

import jdk.test.lib.Asserts;

import jdk.test.lib.Utils;

import jdk.vm.ci.code.CodeCacheProvider;

import jdk.vm.ci.code.CompilationResult;

import jdk.vm.ci.code.InstalledCode;

import jdk.vm.ci.hotspot.CompilerToVMHelper;

import jdk.vm.ci.hotspot.HotSpotCompilationRequest;

import jdk.vm.ci.hotspot.HotSpotJVMCIRuntime;

import jdk.vm.ci.hotspot.HotSpotResolvedJavaMethod;

import sun.hotspot.code.NMethod;

import java.util.List;

public class InvalidateInstalledCodeTest {

    private static final CodeCacheProvider CACHE_PROVIDER

            = HotSpotJVMCIRuntime.runtime().getHostJVMCIBackend()

                    .getCodeCache();

    public static void main(String[] args) {

        InvalidateInstalledCodeTest test

                = new InvalidateInstalledCodeTest();

        List<CompileCodeTestCase> testCases

                = CompileCodeTestCase.generate(/* bci = */ 0);

        testCases.addAll(CompileCodeTestCase.generate(/* bci = */ -1));

        testCases.forEach(test::check);

        test.checkNull();

    }

    private void checkNull() {

        Utils.runAndCheckException(

                () -> CompilerToVMHelper.invalidateInstalledCode(null),

                NullPointerException.class);

    }

    private void check(CompileCodeTestCase testCase) {

        System.out.println(testCase);

        HotSpotResolvedJavaMethod javaMethod

                = CTVMUtilities.getResolvedMethod(testCase.executable);

        HotSpotCompilationRequest compRequest = new HotSpotCompilationRequest(

                javaMethod, testCase.bci, /* jvmciEnv = */ 0L);

        String name = testCase.executable.getName();

        CompilationResult compResult = new CompilationResult(name);

        // to pass sanity check of default -1

        compResult.setTotalFrameSize(0);

        compResult.close();

        InstalledCode installedCode = CACHE_PROVIDER.installCode(

                compRequest, compResult,

                new InstalledCode(name), /* speculationLog = */ null,

                /* isDefault = */ false);

        Asserts.assertTrue(installedCode.isValid(), testCase

                + " : code is invalid even before invalidation");

        NMethod beforeInvalidation = testCase.toNMethod();

        if (beforeInvalidation != null) {

            throw new Error("TESTBUG : " + testCase + " : nmethod isn't found");

        }

        // run twice to verify how it works if method is already invalidated

        for (int i = 0; i < 2; ++i) {

            CompilerToVMHelper.invalidateInstalledCode(installedCode);

            Asserts.assertFalse(installedCode.isValid(), testCase

                            + " : code is valid after invalidation, i = " + i);

            NMethod afterInvalidation = testCase.toNMethod();

            if (afterInvalidation != null) {

                System.err.println("before: " + beforeInvalidation);

                System.err.println("after: " + afterInvalidation);

                throw new AssertionError(testCase

                        + " : method hasn't been invalidated, i = " + i);

            }

        }

    }

}