diff -r 9dfd3cb5648f -r 8e437991f5c0 hotspot/test/compiler/6539464/Test.java --- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/hotspot/test/compiler/6539464/Test.java Mon Apr 06 11:53:17 2009 -0700 @@ -0,0 +1,44 @@ +/* + * Copyright 2009 Sun Microsystems, Inc. All Rights Reserved. + * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. + * + * This code is free software; you can redistribute it and/or modify it + * under the terms of the GNU General Public License version 2 only, as + * published by the Free Software Foundation. + * + * This code is distributed in the hope that it will be useful, but WITHOUT + * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or + * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License + * version 2 for more details (a copy is included in the LICENSE file that + * accompanied this code). + * + * You should have received a copy of the GNU General Public License version + * 2 along with this work; if not, write to the Free Software Foundation, + * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. + * + * Please contact Sun Microsystems, Inc., 4150 Network Circle, Santa Clara, + * CA 95054 USA or visit www.sun.com if you need additional information or + * have any questions. + */ + +/** + * @test + * @bug 6539464 + * @summary Math.log() produces inconsistent results between successive runs. + * + * @run main/othervm -Xcomp -XX:CompileOnly=Test.main Test + */ + +public class Test { + static double log_value = 17197; + static double log_result = Math.log(log_value); + + public static void main(String[] args) throws Exception { + for (int i = 0; i < 1000000; i++) { + double log_result2 = Math.log(log_value); + if (log_result2 != log_result) { + throw new InternalError("Math.log produces inconsistent results: " + log_result2 + " != " + log_result); + } + } + } +}