1 /*
   2  * Copyright (c) 2009, 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 6891750
  28  * @summary deopt blob kills values in O5
  29  *
  30  * @run main Test6891750
  31  */
  32 
  33 abstract class Base6891750 extends Thread {
  34     abstract public long m();
  35 }
  36 class Other6891750 extends Base6891750 {
  37     public long m() {
  38         return 0;
  39     }
  40 }
  41 
  42 public class Test6891750 extends Base6891750 {
  43     Base6891750 d;
  44     volatile long  value = 9;
  45 
  46     static int limit = 400000;
  47 
  48     Test6891750() {
  49         d = this;
  50 
  51     }
  52     public long m() {
  53         return value;
  54     }
  55 
  56     public long test(boolean doit) {
  57         if (doit) {
  58             long total0 = 0;
  59             long total1 = 0;
  60             long total2 = 0;
  61             long total3 = 0;
  62             long total4 = 0;
  63             long total5 = 0;
  64             long total6 = 0;
  65             long total7 = 0;
  66             long total8 = 0;
  67             long total9 = 0;
  68             for (int i = 0; i < limit; i++) {
  69                 total0 += d.m();
  70                 total1 += d.m();
  71                 total2 += d.m();
  72                 total3 += d.m();
  73                 total4 += d.m();
  74                 total5 += d.m();
  75                 total6 += d.m();
  76                 total7 += d.m();
  77                 total8 += d.m();
  78                 total9 += d.m();
  79             }
  80             return total0 + total1 + total2 + total3 + total4 + total5 + total6 + total7 + total8 + total9;
  81         }
  82         return 0;
  83     }
  84 
  85     public void run() {
  86         long result = test(true);
  87         for (int i = 0; i < 300; i++) {
  88             long result2 = test(true);
  89             if (result != result2) {
  90                 throw new InternalError(result + " != " + result2);
  91             }
  92         }
  93     }
  94 
  95     public static void main(String[] args) throws Exception {
  96         Test6891750 Test6891750 = new Test6891750();
  97         // warm it up
  98         for (int i = 0; i < 200000; i++) {
  99             Test6891750.test(false);
 100         }
 101         // set in off running
 102         Test6891750.start();
 103         Thread.sleep(2000);
 104 
 105         // Load a class to invalidate CHA
 106         new Other6891750();
 107     }
 108 }