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annotate test/compiler/6866651/Test.java @ 927:662f330d7275

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6866651: Regression: simple int sum crashes jvm (build 1.6.0_14-b08 and 1.7.0-ea-b59) Summary: delay dead code elimination in set_req_X to make it safe Reviewed-by: kvn, never
author cfang
date Mon, 17 Aug 2009 12:11:06 -0700
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children c18cbe5936b8
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927
662f330d7275 6866651: Regression: simple int sum crashes jvm (build 1.6.0_14-b08 and 1.7.0-ea-b59)
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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
662f330d7275 6866651: Regression: simple int sum crashes jvm (build 1.6.0_14-b08 and 1.7.0-ea-b59)
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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
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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 * @test
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26 * @bug 6866651
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27 * @summary delay dead node elimination in set_req_X to prevent killing the current node when it is in use
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28 *
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29 * @run main Test
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30 */
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31
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32 public class Test {
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33
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34 static int sum() {
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35 int s = 0;
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36 for (int x = 1, y = 0; x != 0; x++, y--) {
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37 s ^= y;
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38 }
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39 return s;
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40 }
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41
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42 public static void main(final String[] args) {
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43 for (int k = 0; k < 2; k++) {
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44 System.err.println(String.valueOf(sum()));
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45 }
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46 }
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47 }