test/compiler/5091921/Test7005594.java

/*
 * Copyright (c) 2011, Oracle and/or its affiliates. All rights reserved.
 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
 *
 * This code is free software; you can redistribute it and/or modify it
 * under the terms of the GNU General Public License version 2 only, as
 * published by the Free Software Foundation.
 *
 * This code is distributed in the hope that it will be useful, but WITHOUT
 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
 * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
 * version 2 for more details (a copy is included in the LICENSE file that
 * accompanied this code).
 *
 * You should have received a copy of the GNU General Public License version
 * 2 along with this work; if not, write to the Free Software Foundation,
 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
 *
 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
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 */

/**
 * @test
 * @bug 7005594
 * @summary Array overflow not handled correctly with loop optimzations
 *
 * @run shell Test7005594.sh
 */

public class Test7005594 {

      static int test(byte a[]){
          int result=0;
          for( int i=0; i<a.length; i+=((0x7fffffff>>1)+1) ){
              result += a[i];
          }
          return result;
      }

      public static void main(String [] args){
          byte a[]=new byte[(0x7fffffff>>1)+2];
          int result = 0;
          try {
              result = test(a);
          } catch (ArrayIndexOutOfBoundsException e) {
              e.printStackTrace(System.out);
              System.out.println("Passed");
              System.exit(95);
          }
          System.out.println(result);
          System.out.println("FAILED");
          System.exit(97);
      }

}