hotspot/test/compiler/6891750/Test6891750.java
author never
Thu, 15 Oct 2009 11:47:13 -0700
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child 5547 f4b087cbb361
permissions -rw-r--r--
6891750: deopt blob kills values in O5 Reviewed-by: kvn, twisti
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/*
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 * Copyright 2009 Sun Microsystems, Inc.  All Rights Reserved.
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 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
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 *
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 * This code is free software; you can redistribute it and/or modify it
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 * under the terms of the GNU General Public License version 2 only, as
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 * published by the Free Software Foundation.
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 *
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 * This code is distributed in the hope that it will be useful, but WITHOUT
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 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
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 * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
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 * version 2 for more details (a copy is included in the LICENSE file that
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 * accompanied this code).
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 *
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 * You should have received a copy of the GNU General Public License version
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 * 2 along with this work; if not, write to the Free Software Foundation,
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 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
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 *
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 * Please contact Sun Microsystems, Inc., 4150 Network Circle, Santa Clara,
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 * CA 95054 USA or visit www.sun.com if you need additional information or
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 * have any questions.
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 *
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 */
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/**
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 * @test
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 * @bug 6891750
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 * @summary deopt blob kills values in O5
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 *
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 * @run main Test6891750
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 */
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abstract class Base6891750 extends Thread {
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    abstract public long m();
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}
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class Other6891750 extends Base6891750 {
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    public long m() {
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        return 0;
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    }
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}
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public class Test6891750 extends Base6891750 {
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    Base6891750 d;
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    volatile long  value = 9;
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    static int limit = 400000;
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    Test6891750() {
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        d = this;
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    }
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    public long m() {
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        return value;
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    }
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    public long test(boolean doit) {
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        if (doit) {
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            long total0 = 0;
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            long total1 = 0;
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            long total2 = 0;
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            long total3 = 0;
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            long total4 = 0;
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            long total5 = 0;
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            long total6 = 0;
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            long total7 = 0;
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            long total8 = 0;
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            long total9 = 0;
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            for (int i = 0; i < limit; i++) {
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                total0 += d.m();
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                total1 += d.m();
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                total2 += d.m();
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                total3 += d.m();
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                total4 += d.m();
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                total5 += d.m();
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                total6 += d.m();
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                total7 += d.m();
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                total8 += d.m();
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                total9 += d.m();
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            }
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            return total0 + total1 + total2 + total3 + total4 + total5 + total6 + total7 + total8 + total9;
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        }
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        return 0;
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    }
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    public void run() {
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        long result = test(true);
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        for (int i = 0; i < 300; i++) {
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            long result2 = test(true);
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            if (result != result2) {
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                throw new InternalError(result + " != " + result2);
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            }
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        }
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    }
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    public static void main(String[] args) throws Exception {
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        Test6891750 Test6891750 = new Test6891750();
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        // warm it up
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        for (int i = 0; i < 200000; i++) {
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            Test6891750.test(false);
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        }
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        // set in off running
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        Test6891750.start();
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        Thread.sleep(2000);
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        // Load a class to invalidate CHA
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        new Other6891750();
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    }
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}