1 /*
   2  * Copyright (c) 2007, 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 package org.graalvm.compiler.jtt.optimize;
  24 
  25 import org.junit.Test;
  26 
  27 import org.graalvm.compiler.jtt.JTTTest;
  28 
  29 /*
  30  */
  31 @SuppressWarnings("unused")
  32 public class List_reorder_bug extends JTTTest {
  33 
  34     private static class TestClass {
  35         String s;
  36 
  37         private void print(String s2) {
  38             this.s = s2;
  39         }
  40 
  41         private void match(Object a, int src, int id, int seq) {
  42             print("match: " + src + ", " + id);
  43             List item = list;
  44             List itemPrev = null;
  45             while (item != null) {
  46                 if (item.id == id) {
  47                     if (item.bool) {
  48                         outcall(item.id);
  49                     }
  50                     if (itemPrev != null) {
  51                         itemPrev.next = item.next;
  52                     } else {
  53                         list = item.next;
  54                     }
  55 
  56                     item.next = null;
  57                     return;
  58                 }
  59 
  60                 itemPrev = item;
  61                 item = item.next;
  62             }
  63         }
  64     }
  65 
  66     static class List {
  67 
  68         List(int id) {
  69             this.id = id;
  70         }
  71 
  72         List next;
  73         int id;
  74         boolean bool = true;
  75     }
  76 
  77     private static List list;
  78 
  79     public static boolean test(int i) {
  80         list = new List(5);
  81         list.next = new List(6);
  82         new TestClass().match(new Object(), 27, 6, 0);
  83         return list.next == null;
  84     }
  85 
  86     static int globalId;
  87 
  88     private static void outcall(int id) {
  89         globalId = id;
  90     }
  91 
  92     @Test
  93     public void run0() throws Throwable {
  94         runTest("test", 0);
  95     }
  96 
  97 }