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annotate test/compiler/6539464/Test.java @ 706:819880572f09

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6539464: Math.log() produces inconsistent results between successive runs. Reviewed-by: kvn
author never
date Mon, 06 Apr 2009 11:53:17 -0700
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children c18cbe5936b8
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706
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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
819880572f09 6539464: Math.log() produces inconsistent results between successive runs.
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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 6539464
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27 * @summary Math.log() produces inconsistent results between successive runs.
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28 *
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29 * @run main/othervm -Xcomp -XX:CompileOnly=Test.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 static double log_value = 17197;
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34 static double log_result = Math.log(log_value);
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35
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36 public static void main(String[] args) throws Exception {
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37 for (int i = 0; i < 1000000; i++) {
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38 double log_result2 = Math.log(log_value);
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39 if (log_result2 != log_result) {
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40 throw new InternalError("Math.log produces inconsistent results: " + log_result2 + " != " + log_result);
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41 }
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42 }
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43 }
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44 }