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