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annotate test/compiler/6795362/Test6795362.java @ 889:15c5903cf9e1

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6865703: G1: Parallelize hot card cache cleanup Summary: Have the GC worker threads clear the hot card cache in parallel by having each worker thread claim a chunk of the card cache and process the cards in that chunk. The size of the chunks that each thread will claim is determined at VM initialization from the size of the card cache and the number of worker threads. Reviewed-by: jmasa, tonyp
author johnc
date Mon, 03 Aug 2009 12:59:30 -0700
parents 7628781568e1
children c18cbe5936b8
Ignore whitespace changes - Everywhere: Within whitespace: At end of lines:
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7628781568e1 6795362: 32bit server compiler leads to wrong results on solaris-x86
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1 /*
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2 * Copyright 2009 Sun Microsystems, Inc. All Rights Reserved.
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3 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
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4 *
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5 * This code is free software; you can redistribute it and/or modify it
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6 * under the terms of the GNU General Public License version 2 only, as
7628781568e1 6795362: 32bit server compiler leads to wrong results on solaris-x86
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7 * published by the Free Software Foundation.
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8 *
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9 * This code is distributed in the hope that it will be useful, but WITHOUT
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10 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
7628781568e1 6795362: 32bit server compiler leads to wrong results on solaris-x86
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11 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
7628781568e1 6795362: 32bit server compiler leads to wrong results on solaris-x86
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12 * version 2 for more details (a copy is included in the LICENSE file that
7628781568e1 6795362: 32bit server compiler leads to wrong results on solaris-x86
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13 * accompanied this code).
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14 *
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15 * You should have received a copy of the GNU General Public License version
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16 * 2 along with this work; if not, write to the Free Software Foundation,
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17 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
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18 *
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19 * Please contact Sun Microsystems, Inc., 4150 Network Circle, Santa Clara,
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20 * CA 95054 USA or visit www.sun.com if you need additional information or
7628781568e1 6795362: 32bit server compiler leads to wrong results on solaris-x86
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21 * have any questions.
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22 */
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23
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24 /**
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25 * @test
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26 * @bug 6795362
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27 * @summary 32bit server compiler leads to wrong results on solaris-x86
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28 *
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29 * @run main/othervm -Xcomp -XX:CompileOnly=Test6795362.sub Test6795362
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30 */
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31
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32 public class Test6795362 {
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33 public static void main(String[] args)
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34 {
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35 sub();
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36
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37 if (var_bad != 0)
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38 throw new InternalError(var_bad + " != 0");
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39 }
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40
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41 static long var_bad = -1L;
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42
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43 static void sub()
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44 {
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45 var_bad >>= 65;
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46 var_bad /= 65;
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47 }
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48 }