Mercurial > hg > graal-compiler
view test/compiler/6910618/Test.java @ 1524:093432aa7573
Merge
author | trims |
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date | Thu, 13 May 2010 17:10:32 -0700 |
parents | f70b0d9ab095 |
children | c18cbe5936b8 |
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/* * Copyright 2010 Sun Microsystems, Inc. All Rights Reserved. * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. * * This code is free software; you can redistribute it and/or modify it * under the terms of the GNU General Public License version 2 only, as * published by the Free Software Foundation. * * This code is distributed in the hope that it will be useful, but WITHOUT * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License * version 2 for more details (a copy is included in the LICENSE file that * accompanied this code). * * You should have received a copy of the GNU General Public License version * 2 along with this work; if not, write to the Free Software Foundation, * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. * * Please contact Sun Microsystems, Inc., 4150 Network Circle, Santa Clara, * CA 95054 USA or visit www.sun.com if you need additional information or * have any questions. * */ /** * @test * @bug 6910605 * @summary C2: NullPointerException/ClassCaseException is thrown when C2 with DeoptimizeALot is used * * @run main/othervm -Xmx64m -XX:+IgnoreUnrecognizedVMOptions -XX:+DeoptimizeALot -XX:+DoEscapeAnalysis -Xbatch -XX:InlineSmallCode=2000 Test * */ /* * Added InlineSmallCode=2000 to guaranty inlining of StringBuilder::append() to allow scalar replace StringBuilder object. * * original test: gc/gctests/StringGC */ public class Test { private final String toAdd = "0123456789abcdef"; private int maxLength; private static final int numberOfThreads = 8; private class StringAdder extends Thread { private String s; public void test() { s = s + toAdd; } public void run() { do { test(); } while (s.length() < maxLength); } } public void test() throws InterruptedException { maxLength = toAdd.length() * 15000/ numberOfThreads; StringAdder[] sa = new StringAdder[numberOfThreads]; for (int i = 0; i < numberOfThreads; i++) { sa[i] = new StringAdder(); sa[i].start(); } for (int i = 0; i < numberOfThreads; i++) { sa[i].join(); } } public static void main(String[] args) throws InterruptedException { Test t = new Test(); t.test(); } }