hotspot/test/compiler/jvmci/compilerToVM/IsCompilableTest.java

/*
 * 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.
 *
 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
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 */

/**
 * @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.vm.ci/jdk.vm.ci.hotspot
 *          jdk.vm.ci/jdk.vm.ci.code
 *
 * @build jdk.vm.ci/jdk.vm.ci.hotspot.CompilerToVMHelper 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 -XX:+UseJVMCICompiler
 *                   compiler.jvmci.compilerToVM.IsCompilableTest
 * @run main/othervm -Xbootclasspath/a:.
 *                   -XX:+UnlockDiagnosticVMOptions -XX:+WhiteBoxAPI
 *                   -XX:+UnlockExperimentalVMOptions -XX:+EnableJVMCI
 *                   compiler.jvmci.compilerToVM.IsCompilableTest
 */

package compiler.jvmci.compilerToVM;

import compiler.jvmci.common.CTVMUtilities;
import jdk.test.lib.Asserts;
import jdk.vm.ci.hotspot.CompilerToVMHelper;
import jdk.vm.ci.hotspot.HotSpotResolvedJavaMethod;
import sun.hotspot.WhiteBox;

import java.lang.reflect.Executable;
import java.util.ArrayList;
import java.util.Arrays;
import java.util.List;

public class IsCompilableTest {

    private static final WhiteBox WB = WhiteBox.getWhiteBox();

    public static void main(String[] args) {
        List<Executable> testCases = createTestCases();
        testCases.forEach(IsCompilableTest::runSanityTest);
    }

    private static void runSanityTest(Executable aMethod) {
        boolean UseJVMCICompiler = (Boolean) WB.getVMFlag("UseJVMCICompiler");
        HotSpotResolvedJavaMethod method = CTVMUtilities
                .getResolvedMethod(aMethod);
        boolean isCompilable = CompilerToVMHelper.isCompilable(method);
        boolean expected = UseJVMCICompiler || WB.isMethodCompilable(aMethod);
        Asserts.assertEQ(isCompilable, expected, "Unexpected initial " +
                "value of property 'compilable'");

        if (!UseJVMCICompiler) {
            WB.makeMethodNotCompilable(aMethod);
            isCompilable = CompilerToVMHelper.isCompilable(method);
            Asserts.assertFalse(isCompilable, aMethod + "Unexpected value of " +
                "property 'isCompilable' after setting 'compilable' to false");
        }
    }

    private static List<Executable> createTestCases() {
        List<Executable> testCases = new ArrayList<>();

        Class<?> aClass = DummyClass.class;
        testCases.addAll(Arrays.asList(aClass.getDeclaredMethods()));
        testCases.addAll(Arrays.asList(aClass.getDeclaredConstructors()));
        return testCases;
    }
}