--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/test/compiler/5091921/Test6897150.java	Wed May 04 13:12:42 2011 -0700
@@ -0,0 +1,58 @@
+/*
+ * Copyright (c) 2011, Oracle and/or its affiliates. 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 Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
+ * or visit www.oracle.com if you need additional information or have any
+ * questions.
+ *
+ */
+
+/**
+ * @test
+ * @bug 6897150
+ * @summary Hotspot optimises away a valid loop
+ *
+ * @run main Test6897150
+ */
+
+// Should be compiled with javac from JDK1.3 to get bytecode which shows the problem.
+public class Test6897150 {
+    public static void main(String[] args) {
+        // This works
+        loopAndPrint(Integer.MAX_VALUE -1);
+        // This doesn't
+        loopAndPrint(Integer.MAX_VALUE);
+    }
+
+    static void verify(int max, int a) {
+        if ( a != (max - 1)) {
+            System.out.println("Expected: " + (max - 1));
+            System.out.println("Actual  : " + a);
+            System.exit(97);
+        }
+    }
+    static void loopAndPrint(int max) {
+        int a = -1;
+        int i = 1;
+        for (; i < max; i++) {
+            a = i;
+        }
+        verify(max, a);
+    }
+}
+