1 /*

     2  * Copyright (c) 2012, 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 8002069

    28  * @summary Assert failed in C2: assert(field->edge_count() > 0) failed: sanity

    29  *

    30  * @run main/othervm -Xmx32m -XX:+IgnoreUnrecognizedVMOptions -Xbatch -XX:CompileCommand=exclude,Test8002069.dummy Test8002069

    31  */

    32 

    33 abstract class O {

    34   int f;

    35   public O() { f = 5; }

    36   abstract void put(int i);

    37   public int foo(int i) {

    38     put(i);

    39     return i;

    40   }

    41 };

    42 

    43 class A extends O {

    44   int[] a;

    45   public A(int s) {

    46     a = new int[s];

    47   }

    48   public void put(int i) {

    49     a[i%a.length] = i;

    50   }

    51 }

    52 

    53 class B extends O {

    54   int sz;

    55   int[] a;

    56   public B(int s) {

    57     sz = s;

    58     a = new int[s];

    59   }

    60   public void put(int i) {

    61     a[i%sz] = i;

    62   }

    63 }

    64 

    65 public class Test8002069 {

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

    67     int sum = 0;

    68     for (int i=0; i<8000; i++) {

    69       sum += test1(i);

    70     }

    71     for (int i=0; i<100000; i++) {

    72       sum += test2(i);

    73     }

    74     System.out.println("PASSED. sum = " + sum);

    75   }

    76 

    77   private O o;

    78 

    79   private int foo(int i) {

    80     return o.foo(i);

    81   }

    82   static int test1(int i) {

    83     Test8002069 t = new Test8002069();

    84     t.o = new A(5);

    85     return t.foo(i);

    86   }

    87   static int test2(int i) {

    88     Test8002069 t = new Test8002069();

    89     t.o = new B(5);

    90     dummy(i);

    91     return t.foo(i);

    92   }

    93 

    94   static int dummy(int i) {

    95     return i*2;

    96   }

    97 }

    98