1 /*
   2  * Copyright (c) 2010, 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 6930043
  28  * @summary C2: SIGSEGV in javasoft.sqe.tests.lang.arr017.arr01702.arr01702.loop_forw(II)I
  29  *
  30  * @run main compiler.c2.Test6930043
  31  */
  32 
  33 package compiler.c2;
  34 
  35 public class Test6930043 {
  36     int[] a;
  37     int idx;
  38 
  39     public int loop_back(int i, int i_0_) {
  40         int i_1_ = 0;
  41         int[] is = a;
  42         if (is == null) return 0;
  43         for (int i_2_ = i; i_2_ >= i_0_; i_2_--)
  44             i_1_ += is[idx = i_2_];
  45         return i_1_;
  46     }
  47 
  48     public int loop_forw(int start, int end) {
  49         int result = 0;
  50         int[] is = a;
  51         if (is == null) return 0;
  52         for (int index = start; index < end; index++)
  53             result += is[index];
  54             // result += is[idx = index];
  55         return result;
  56     }
  57 
  58     public static void main(String[] strings) {
  59         Test6930043 var_Test6930043 = new Test6930043();
  60         var_Test6930043.a = new int[1000000];
  61         var_Test6930043.loop_forw(10, 999990);
  62         var_Test6930043.loop_forw(10, 999990);
  63         for (int i = 0; i < 3; i++) {
  64             try {
  65                 if (var_Test6930043.loop_forw(-1, 999990) != 0) throw new InternalError();
  66             } catch (ArrayIndexOutOfBoundsException e) { }
  67         }
  68         var_Test6930043.loop_back(999990, 10);
  69         var_Test6930043.loop_back(999990, 10);
  70         for (int i = 0; i < 3; i++) {
  71             try {
  72                 if (var_Test6930043.loop_back(999990, -1) != 0) throw new InternalError();
  73             } catch (ArrayIndexOutOfBoundsException e) { }
  74         }
  75     }
  76 }