jdk8-mips64-public/hotspot: test/compiler/whitebox/CompilerWhiteBoxTest.java@5201379fe487

     1 /*

     2  * Copyright (c) 2013, 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 sun.hotspot.WhiteBox;

    25 import sun.management.ManagementFactoryHelper;

    26 import com.sun.management.HotSpotDiagnosticMXBean;

    28 import java.lang.reflect.Method;

    30 /*

    31  * @author igor.ignatyev@oracle.com

    32  */

    33 public abstract class CompilerWhiteBoxTest {

    34     protected static final WhiteBox WHITE_BOX = WhiteBox.getWhiteBox();

    35     protected static final Method METHOD = getMethod("method");

    36     protected static final int COMPILE_THRESHOLD

    37             = Integer.parseInt(getVMOption("CompileThreshold", "10000"));

    38     protected static final boolean BACKGROUND_COMPILATION

    39             = Boolean.valueOf(getVMOption("BackgroundCompilation", "true"));

    40     protected static final boolean TIERED_COMPILATION

    41             = Boolean.valueOf(getVMOption("TieredCompilation", "false"));

    43     protected static Method getMethod(String name) {

    44         try {

    45             return CompilerWhiteBoxTest.class.getDeclaredMethod(name);

    46         } catch (NoSuchMethodException | SecurityException e) {

    47             throw new RuntimeException(

    48                     "exception on getting method " + name, e);

    49         }

    50     }

    52     protected static String getVMOption(String name) {

    53         String result;

    54         HotSpotDiagnosticMXBean diagnostic

    55                 = ManagementFactoryHelper.getDiagnosticMXBean();

    56         result = diagnostic.getVMOption(name).getValue();

    57         return result;

    58     }

    60     protected static String getVMOption(String name, String defaultValue) {

    61         String result = getVMOption(name);

    62         return result == null ? defaultValue : result;

    63     }

    65     protected final void runTest() throws RuntimeException {

    66         if (ManagementFactoryHelper.getCompilationMXBean() == null) {

    67             System.err.println(

    68                     "Warning: test is not applicable in interpreted mode");

    69             return;

    70         }

    71         System.out.println("at test's start:");

    72         printInfo(METHOD);

    73         try {

    74             test();

    75         } catch (Exception e) {

    76             System.out.printf("on exception '%s':", e.getMessage());

    77             printInfo(METHOD);

    78             e.printStackTrace();

    79             throw new RuntimeException(e);

    80         }

    81         System.out.println("at test's end:");

    82         printInfo(METHOD);

    83     }

    85     protected static void checkNotCompiled(Method method) {

    86         if (WHITE_BOX.isMethodQueuedForCompilation(method)) {

    87             throw new RuntimeException(method + " must not be in queue");

    88         }

    89         if (WHITE_BOX.isMethodCompiled(method)) {

    90             throw new RuntimeException(method + " must be not compiled");

    91         }

    92         if (WHITE_BOX.getMethodCompilationLevel(method) != 0) {

    93             throw new RuntimeException(method + " comp_level must be == 0");

    94         }

    95     }

    97     protected static void checkCompiled(Method method)

    98             throws InterruptedException {

    99         final long start = System.currentTimeMillis();

   100         waitBackgroundCompilation(method);

   101         if (WHITE_BOX.isMethodQueuedForCompilation(method)) {

   102             System.err.printf("Warning: %s is still in queue after %dms%n",

   103                     method, System.currentTimeMillis() - start);

   104             return;

   105         }

   106         if (!WHITE_BOX.isMethodCompiled(method)) {

   107             throw new RuntimeException(method + " must be compiled");

   108         }

   109         if (WHITE_BOX.getMethodCompilationLevel(method) == 0) {

   110             throw new RuntimeException(method + " comp_level must be != 0");

   111         }

   112     }

   114     protected static void waitBackgroundCompilation(Method method)

   115             throws InterruptedException {

   116         if (!BACKGROUND_COMPILATION) {

   117             return;

   118         }

   119         final Object obj = new Object();

   120         synchronized (obj) {

   121             for (int i = 0; i < 10; ++i) {

   122                 if (!WHITE_BOX.isMethodQueuedForCompilation(method)) {

   123                     break;

   124                 }

   125                 obj.wait(1000);

   126             }

   127         }

   128     }

   130     protected static void printInfo(Method method) {

   131         System.out.printf("%n%s:%n", method);

   132         System.out.printf("\tcompilable:\t%b%n",

   133                 WHITE_BOX.isMethodCompilable(method));

   134         System.out.printf("\tcompiled:\t%b%n",

   135                 WHITE_BOX.isMethodCompiled(method));

   136         System.out.printf("\tcomp_level:\t%d%n",

   137                 WHITE_BOX.getMethodCompilationLevel(method));

   138         System.out.printf("\tin_queue:\t%b%n",

   139                 WHITE_BOX.isMethodQueuedForCompilation(method));

   140         System.out.printf("compile_queues_size:\t%d%n%n",

   141                 WHITE_BOX.getCompileQueuesSize());

   142     }

   144     protected abstract void test() throws Exception;

   146     protected final int compile() {

   147         return compile(Math.max(COMPILE_THRESHOLD, 150000));

   148     }

   150     protected final int compile(int count) {

   151         int result = 0;

   152         for (int i = 0; i < count; ++i) {

   153             result += method();

   154         }

   155         System.out.println("method was invoked " + count + " times");

   156         return result;

   157     }

   159     protected int method() {

   160         return 42;

   161     }

   162 }

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