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comparison 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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705:1f2abec69714 706:819880572f09
1 /*
2 * Copyright 2009 Sun Microsystems, Inc. All Rights Reserved.
3 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
4 *
5 * This code is free software; you can redistribute it and/or modify it
6 * under the terms of the GNU General Public License version 2 only, as
7 * published by the Free Software Foundation.
8 *
9 * This code is distributed in the hope that it will be useful, but WITHOUT
10 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
11 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
12 * version 2 for more details (a copy is included in the LICENSE file that
13 * accompanied this code).
14 *
15 * You should have received a copy of the GNU General Public License version
16 * 2 along with this work; if not, write to the Free Software Foundation,
17 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
18 *
19 * Please contact Sun Microsystems, Inc., 4150 Network Circle, Santa Clara,
20 * CA 95054 USA or visit www.sun.com if you need additional information or
21 * have any questions.
22 */
23
24 /**
25 * @test
26 * @bug 6539464
27 * @summary Math.log() produces inconsistent results between successive runs.
28 *
29 * @run main/othervm -Xcomp -XX:CompileOnly=Test.main Test
30 */
31
32 public class Test {
33 static double log_value = 17197;
34 static double log_result = Math.log(log_value);
35
36 public static void main(String[] args) throws Exception {
37 for (int i = 0; i < 1000000; i++) {
38 double log_result2 = Math.log(log_value);
39 if (log_result2 != log_result) {
40 throw new InternalError("Math.log produces inconsistent results: " + log_result2 + " != " + log_result);
41 }
42 }
43 }
44 }