Mercurial > hg > truffle
view test/compiler/6855164/Test.java @ 1095:7bfd295ec074
6908208: UseCompressedOops: array_size() returns incorrect size for MAX_INT object array following 6906727
Summary: In array_size() cast to an unsigned to avoid overflow of intermediate value.
Reviewed-by: kvn, tonyp, jmasa, jcoomes, coleenp
author | ysr |
---|---|
date | Tue, 08 Dec 2009 15:12:17 -0800 |
parents | 73dac61fe300 |
children | c18cbe5936b8 |
line wrap: on
line source
/* * Copyright 2009 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 6855164 * @summary SIGSEGV during compilation of method involving loop over CharSequence * @run main/othervm -Xbatch Test */ public class Test{ public static void main(String[] args) throws Exception { StringBuffer builder = new StringBuffer(); for(int i = 0; i < 100; i++) builder.append("I am the very model of a modern major general\n"); for(int j = 0; j < builder.length(); j++){ previousSpaceIndex(builder, j); } } private static final int previousSpaceIndex(CharSequence sb, int seek) { seek--; while (seek > 0) { if (sb.charAt(seek) == ' ') { while (seek > 0 && sb.charAt(seek - 1) == ' ') seek--; return seek; } seek--; } return 0; } }