1 /*
   2  * Copyright (c) 2018, 2019, 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 4157675
  27  * @summary Solaris JIT generates bad code for logic expression
  28  * @author Tom Rodriguez
  29  * @run main compiler.BadLogicCode
  30  */
  31 
  32 package compiler;
  33 
  34 public class BadLogicCode {
  35     static int values[] = {Integer.MIN_VALUE, -1, 0, 1, 4, 16, 31,
  36                            32, 33, Integer.MAX_VALUE};
  37     static char b[][] = {null, new char[32]};
  38     static boolean nullPtr = false, indexOutBnd = false;
  39     static boolean indexOutBnd2 = false;
  40 
  41     public static void main(String args[]) throws Exception{
  42         int i = 1, j = 4, k = 9;
  43 
  44         nullPtr = (b[i] == null);
  45 
  46         int bufLen = nullPtr ? 0 : b[i].length;
  47         indexOutBnd = (values[j] < 0)
  48             || (values[j] > bufLen)
  49             || (values[k] < 0)
  50             || ((values[j] + values[k]) > bufLen)
  51             ||((values[j] + values[k]) < 0);
  52 
  53         indexOutBnd2 = (values[j] < 0);
  54         indexOutBnd2 = indexOutBnd2 || (values[j] > bufLen);
  55         indexOutBnd2 = indexOutBnd2 || (values[k] < 0);
  56         indexOutBnd2 = indexOutBnd2 || ((values[j] + values[k]) > bufLen);
  57         indexOutBnd2 = indexOutBnd2 ||((values[j] + values[k]) < 0);
  58         if (indexOutBnd != indexOutBnd2)
  59             throw new Error("logic expression generate different results");
  60     }
  61 }