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annotate test/compiler/6795161/Test.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 7fe62bb75bf4
children c18cbe5936b8
Ignore whitespace changes - Everywhere: Within whitespace: At end of lines:
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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
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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
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11 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
7fe62bb75bf4 6799693: Server compiler leads to data corruption when expression throws an Exception
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12 * version 2 for more details (a copy is included in the LICENSE file that
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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
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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 /*
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26 * @test
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27 * @bug 6795161
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28 * @summary Escape analysis leads to data corruption
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29 * @run main/othervm -server -Xcomp -XX:CompileOnly=Test -XX:+DoEscapeAnalysis Test
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30 */
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31
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32 class Test_Class_1 {
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33 static String var_1;
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34
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35 static void badFunc(int size)
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36 {
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37 try {
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38 for (int i = 0; i < 1; (new byte[size-i])[0] = 0, i++) {}
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39 } catch (Exception e) {
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40 // don't comment it out, it will lead to correct results ;)
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41 //System.out.println("Got exception: " + e);
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42 }
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43 }
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44 }
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45
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46 public class Test {
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47 static String var_1_copy = Test_Class_1.var_1;
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48
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49 static byte var_check;
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50
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51 public static void main(String[] args)
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52 {
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53 var_check = 1;
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54
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55 Test_Class_1.badFunc(-1);
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56
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57 System.out.println("EATester.var_check = " + Test.var_check + " (expected 1)\n");
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58 }
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59 }
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60