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

6539464: Math.log() produces inconsistent results between successive runs. Reviewed-by: kvn
author never
date Mon, 06 Apr 2009 11:53:17 -0700
parents
children c18cbe5936b8
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--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/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);
+            }
+        }
+    }
+}