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  * @run main compiler.runtime.cr6891750.Test6891750
  30  */
  31 
  32 package compiler.runtime.cr6891750;
  33 
  34 abstract class Base6891750 extends Thread {
  35     abstract public long m();
  36 }
  37 class Other6891750 extends Base6891750 {
  38     public long m() {
  39         return 0;
  40     }
  41 }
  42 
  43 public class Test6891750 extends Base6891750 {
  44     Base6891750 d;
  45     volatile long  value = 9;
  46 
  47     static int limit = 400000;
  48 
  49     Test6891750() {
  50         d = this;
  51 
  52     }
  53     public long m() {
  54         return value;
  55     }
  56 
  57     public long test(boolean doit) {
  58         if (doit) {
  59             long total0 = 0;
  60             long total1 = 0;
  61             long total2 = 0;
  62             long total3 = 0;
  63             long total4 = 0;
  64             long total5 = 0;
  65             long total6 = 0;
  66             long total7 = 0;
  67             long total8 = 0;
  68             long total9 = 0;
  69             for (int i = 0; i < limit; i++) {
  70                 total0 += d.m();
  71                 total1 += d.m();
  72                 total2 += d.m();
  73                 total3 += d.m();
  74                 total4 += d.m();
  75                 total5 += d.m();
  76                 total6 += d.m();
  77                 total7 += d.m();
  78                 total8 += d.m();
  79                 total9 += d.m();
  80             }
  81             return total0 + total1 + total2 + total3 + total4 + total5 + total6 + total7 + total8 + total9;
  82         }
  83         return 0;
  84     }
  85 
  86     public void run() {
  87         long result = test(true);
  88         for (int i = 0; i < 300; i++) {
  89             long result2 = test(true);
  90             if (result != result2) {
  91                 throw new InternalError(result + " != " + result2);
  92             }
  93         }
  94     }
  95 
  96     public static void main(String[] args) throws Exception {
  97         Test6891750 Test6891750 = new Test6891750();
  98         // warm it up
  99         for (int i = 0; i < 200000; i++) {
 100             Test6891750.test(false);
 101         }
 102         // set in off running
 103         Test6891750.start();
 104         Thread.sleep(2000);
 105 
 106         // Load a class to invalidate CHA
 107         new Other6891750();
 108     }
 109 }