1 /*

     2  * Copyright (c) 2015, 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  *

    23  */

    24 

    25 /**

    26  * @test

    27  * @bug 8136421

    28  * @requires (os.simpleArch == "x64" | os.simpleArch == "sparcv9") & os.arch != "aarch64"

    29  * @library /testlibrary /../../test/lib /

    30  * @compile ../common/CompilerToVMHelper.java

    31  * @build sun.hotspot.WhiteBox

    32  * @run main ClassFileInstaller

    33  *      sun.hotspot.WhiteBox

    34  *      sun.hotspot.WhiteBox$WhiteBoxPermission

    35  *      jdk.vm.ci.hotspot.CompilerToVMHelper

    36  * @run main/othervm -XX:+UnlockExperimentalVMOptions -XX:+EnableJVMCI

    37  *      -XX:+UnlockDiagnosticVMOptions -XX:+WhiteBoxAPI -Xbootclasspath/a:.

    38  *      -Xmixed

    39  *      compiler.jvmci.compilerToVM.ReprofileTest

    40  */

    41 

    42 package compiler.jvmci.compilerToVM;

    43 

    44 import compiler.jvmci.common.CTVMUtilities;

    45 import java.lang.reflect.Method;

    46 import java.util.ArrayList;

    47 import java.util.List;

    48 import java.util.Random;

    49 import jdk.vm.ci.hotspot.HotSpotResolvedJavaMethodImpl;

    50 import jdk.vm.ci.hotspot.CompilerToVMHelper;

    51 import jdk.vm.ci.meta.ProfilingInfo;

    52 import jdk.test.lib.Asserts;

    53 import jdk.test.lib.Utils;

    54 import sun.hotspot.WhiteBox;

    55 

    56 public class ReprofileTest {

    57 

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

    59 

    60     public static void main(String[] args) {

    61         List<Method> testCases = createTestCases();

    62         testCases.forEach(ReprofileTest::runSanityTest);

    63     }

    64 

    65     private static List<Method> createTestCases() {

    66         List<Method> testCases = new ArrayList<>();

    67         try {

    68 

    69             Class<?> aClass = DummyClass.class;

    70             testCases.add(aClass.getMethod("withLoop"));

    71 

    72             aClass = DummyClass.class;

    73             testCases.add(aClass.getDeclaredMethod("dummyFunction"));

    74         } catch (NoSuchMethodException e) {

    75             throw new Error("TEST BUG " + e.getMessage(), e);

    76         }

    77         return testCases;

    78     }

    79 

    80     private static void runSanityTest(Method aMethod) {

    81         HotSpotResolvedJavaMethodImpl method = CTVMUtilities

    82                 .getResolvedMethod(aMethod);

    83         ProfilingInfo startProfile = method.getProfilingInfo();

    84         Asserts.assertFalse(startProfile.isMature(), aMethod

    85                 + " : profiling info is mature in the begging");

    86 

    87         long compileThreshold = (Long) WB.getVMFlag("CompileThreshold");

    88         // make interpreter to profile this method

    89         try {

    90             Object obj = aMethod.getDeclaringClass().newInstance();

    91             for (long i = 0; i < compileThreshold; i++) {

    92                 aMethod.invoke(obj);

    93             }

    94         } catch (ReflectiveOperationException e) {

    95             throw new Error("TEST BUG : " + e.getMessage(), e);

    96         }

    97         ProfilingInfo compProfile = method.getProfilingInfo();

    98 

    99         Asserts.assertNE(startProfile.toString(), compProfile.toString(),

   100                 String.format("%s : profiling info wasn't changed after "

   101                                 + "%d invocations",

   102                         aMethod, compileThreshold));

   103         Asserts.assertTrue(compProfile.isMature(),

   104                 String.format("%s is not mature after %d invocations",

   105                         aMethod, compileThreshold));

   106 

   107         CompilerToVMHelper.reprofile(method);

   108         ProfilingInfo reprofiledProfile = method.getProfilingInfo();

   109 

   110         Asserts.assertNE(startProfile.toString(), reprofiledProfile.toString(),

   111                 aMethod + " : profiling info wasn't changed after reprofiling");

   112         Asserts.assertNE(compProfile.toString(), reprofiledProfile.toString(),

   113                 aMethod + " : profiling info didn't change after reprofile");

   114         Asserts.assertFalse(reprofiledProfile.isMature(), aMethod

   115                 + " : profiling info is mature after reprofiling");

   116     }

   117 }