jdk8-mips64-public/hotspot: test/compiler/dependencies/MonomorphicObjectCall/TestMonomorphicObjectCall.java@8c95980d0b66

     1 /*

     2  * Copyright (c) 2014, Oracle and/or its affiliates. All rights reserved.

     3  * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.

     4  *

     5  * This code is free software; you can redistribute it and/or modify it

     6  * under the terms of the GNU General Public License version 2 only, as

     7  * published by the Free Software Foundation.

     8  *

     9  * This code is distributed in the hope that it will be useful, but WITHOUT

    10  * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or

    11  * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License

    12  * version 2 for more details (a copy is included in the LICENSE file that

    13  * accompanied this code).

    14  *

    15  * You should have received a copy of the GNU General Public License version

    16  * 2 along with this work; if not, write to the Free Software Foundation,

    17  * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.

    18  *

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

    20  * or visit www.oracle.com if you need additional information or have any

    21  * questions.

    22  */

    24 import java.io.File;

    25 import java.util.ArrayList;

    26 import java.util.Collections;

    28 import com.oracle.java.testlibrary.*;

    30 /*

    31  * @test

    32  * @bug 8050079

    33  * @summary Compiles a monomorphic call to finalizeObject() on a modified java.lang.Object to test C1 CHA.

    34  * @library /testlibrary

    35  * @compile -XDignore.symbol.file java/lang/Object.java TestMonomorphicObjectCall.java

    36  * @run main TestMonomorphicObjectCall

    37  */

    38 public class TestMonomorphicObjectCall {

    39     final static String testClasses = System.getProperty("test.classes") + File.separator;

    41     private static void callFinalize(Object object) throws Throwable {

    42         // Call modified version of java.lang.Object::finalize() that is

    43         // not overridden by any subclass. C1 CHA should mark the call site

    44         // as monomorphic and inline the method.

    45         object.finalizeObject();

    46     }

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

    49         if (args.length == 0) {

    50             // Execute new instance with modified java.lang.Object

    51             executeTestJvm();

    52         } else {

    53             // Trigger compilation of 'callFinalize'

    54             callFinalize(new Object());

    55         }

    56     }

    58     public static void executeTestJvm() throws Throwable {

    59         // Execute test with modified version of java.lang.Object

    60         // in -Xbootclasspath.

    61         String[] vmOpts = new String[] {

    62                 "-Xbootclasspath/p:" + testClasses,

    63                 "-Xcomp",

    64                 "-XX:+IgnoreUnrecognizedVMOptions",

    65                 "-XX:-VerifyDependencies",

    66                 "-XX:CompileOnly=TestMonomorphicObjectCall::callFinalize",

    67                 "-XX:CompileOnly=Object::finalizeObject",

    68                 "-XX:TieredStopAtLevel=1",

    69                 TestMonomorphicObjectCall.class.getName(),

    70                 "true"};

    71         OutputAnalyzer output = ProcessTools.executeTestJvm(vmOpts);

    72         output.shouldHaveExitValue(0);

    73     }

    74 }

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