1 /*

     2  * Copyright (c) 2017, Red Hat, Inc. and/or its affiliates.

     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.

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    23 

    24 /**

    25  * @test TestRefArrays

    26  * @library /test/lib

    27  * @summary Epsilon is able to allocate arrays, and does not corrupt their state

    28  *

    29  * @run main/othervm -Xmx1g                                        -XX:+UseTLAB -XX:+UnlockExperimentalVMOptions -XX:+IgnoreUnrecognizedVMOptions -XX:+UseEpsilonGC TestRefArrays

    30  * @run main/othervm -Xmx1g -Xint                                  -XX:+UseTLAB -XX:+UnlockExperimentalVMOptions -XX:+IgnoreUnrecognizedVMOptions -XX:+UseEpsilonGC TestRefArrays

    31  * @run main/othervm -Xmx1g -Xbatch -Xcomp                         -XX:+UseTLAB -XX:+UnlockExperimentalVMOptions -XX:+IgnoreUnrecognizedVMOptions -XX:+UseEpsilonGC TestRefArrays

    32  * @run main/othervm -Xmx1g -Xbatch -Xcomp -XX:TieredStopAtLevel=1 -XX:+UseTLAB -XX:+UnlockExperimentalVMOptions -XX:+IgnoreUnrecognizedVMOptions -XX:+UseEpsilonGC TestRefArrays

    33  * @run main/othervm -Xmx1g -Xbatch -Xcomp -XX:TieredStopAtLevel=4 -XX:+UseTLAB -XX:+UnlockExperimentalVMOptions -XX:+IgnoreUnrecognizedVMOptions -XX:+UseEpsilonGC TestRefArrays

    34  *

    35  * @run main/othervm -Xmx1g                                        -XX:-UseTLAB -XX:+UnlockExperimentalVMOptions -XX:+IgnoreUnrecognizedVMOptions -XX:+UseEpsilonGC TestRefArrays

    36  * @run main/othervm -Xmx1g -Xint                                  -XX:-UseTLAB -XX:+UnlockExperimentalVMOptions -XX:+IgnoreUnrecognizedVMOptions -XX:+UseEpsilonGC TestRefArrays

    37  * @run main/othervm -Xmx1g -Xbatch -Xcomp                         -XX:-UseTLAB -XX:+UnlockExperimentalVMOptions -XX:+IgnoreUnrecognizedVMOptions -XX:+UseEpsilonGC TestRefArrays

    38  * @run main/othervm -Xmx1g -Xbatch -Xcomp -XX:TieredStopAtLevel=1 -XX:-UseTLAB -XX:+UnlockExperimentalVMOptions -XX:+IgnoreUnrecognizedVMOptions -XX:+UseEpsilonGC TestRefArrays

    39  * @run main/othervm -Xmx1g -Xbatch -Xcomp -XX:TieredStopAtLevel=4 -XX:-UseTLAB -XX:+UnlockExperimentalVMOptions -XX:+IgnoreUnrecognizedVMOptions -XX:+UseEpsilonGC TestRefArrays

    40  */

    41 

    42 import java.util.Random;

    43 

    44 public class TestRefArrays extends AbstractEpsilonTest {

    45 

    46   static long SEED = Long.getLong("seed", System.nanoTime());

    47   static int COUNT = Integer.getInteger("count", 1000); // ~500 MB allocation

    48 

    49   static MyObject[][] arr;

    50 

    51   public static void main(String[] args) throws Exception {

    52     if (!isEpsilonEnabled()) return;

    53 

    54     Random r = new Random(SEED);

    55 

    56     arr = new MyObject[COUNT * 100][];

    57     for (int c = 0; c < COUNT; c++) {

    58       arr[c] = new MyObject[c * 100];

    59       for (int v = 0; v < c; v++) {

    60         arr[c][v] = new MyObject(r.nextInt());

    61       }

    62     }

    63 

    64     r = new Random(SEED);

    65     for (int c = 0; c < COUNT; c++) {

    66       MyObject[] b = arr[c];

    67       if (b.length != (c * 100)) {

    68         throw new IllegalStateException("Failure: length = " + b.length + ", need = " + (c*100));

    69       }

    70       for (int v = 0; v < c; v++) {

    71         int actual = b[v].id();

    72         int expected = r.nextInt();

    73         if (actual != expected) {

    74           throw new IllegalStateException("Failure: expected = " + expected + ", actual = " + actual);

    75         }

    76       }

    77     }

    78   }

    79 

    80   public static class MyObject {

    81     int id;

    82     public MyObject(int id) {

    83       this.id = id;

    84     }

    85     public int id() {

    86       return id;

    87     }

    88   }

    89 }