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  */

    23 

    24 /*

    25  * @test

    26  * @bug 8055153

    27  * @summary missing control on LoadRange and LoadKlass when array copy macro node is expanded

    28  * @run main/othervm -XX:-BackgroundCompilation -XX:-UseOnStackReplacement -XX:-TieredCompilation TestMissingControl

    29  *

    30  */

    31 public class TestMissingControl {

    32 

    33     static int[] m1(int[] a2) {

    34         int[] a1 = new int[10];

    35         System.arraycopy(a1, 0, a2, 0, 10);

    36         return a1;

    37     }

    38 

    39     static class A {

    40     }

    41 

    42     static Object m2(Object[] a2) {

    43         A[] a1 = new A[10];

    44         System.arraycopy(a1, 0, a2, 0, 10);

    45         return a1;

    46     }

    47 

    48     static void test1() {

    49         int[] a2 = new int[10];

    50         int[] a3 = new int[5];

    51 

    52         // compile m1 with arraycopy intrinsified

    53         for (int i = 0; i < 20000; i++) {

    54             m1(a2);

    55         }

    56 

    57         // make m1 trap

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

    59             try {

    60                 m1(a3);

    61             } catch(IndexOutOfBoundsException ioobe) {

    62             }

    63         }

    64 

    65         // recompile m1

    66         for (int i = 0; i < 20000; i++) {

    67             m1(a2);

    68         }

    69 

    70         try {

    71             m1(null);

    72         } catch(NullPointerException npe) {}

    73     }

    74 

    75     static void test2() {

    76         A[] a2 = new A[10];

    77         A[] a3 = new A[5];

    78 

    79         // compile m2 with arraycopy intrinsified

    80         for (int i = 0; i < 20000; i++) {

    81             m2(a2);

    82         }

    83 

    84         // make m2 trap

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

    86             try {

    87                 m2(a3);

    88             } catch(IndexOutOfBoundsException ioobe) {

    89             }

    90         }

    91 

    92         // recompile m2

    93         for (int i = 0; i < 20000; i++) {

    94             m2(a2);

    95         }

    96 

    97         try {

    98             m2(null);

    99         } catch(NullPointerException npe) {}

   100     }

   101 

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

   103         test1();

   104         test2();

   105     }

   106 }