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 }