--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/hotspot/test/compiler/6778657/Test.java	Mon Dec 22 15:43:02 2008 -0800
@@ -0,0 +1,75 @@
+/*
+ * Copyright 2008 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 6778657
+ * @summary Casts in SharedRuntime::f2i, f2l, d2i and d2l rely on undefined C++ behaviour
+ */
+
+public class Test {
+  public static void check_f2i(int expect) {
+    float check = expect;
+    check *= 2;
+    int actual = (int) check;
+    if (actual != expect)
+      throw new RuntimeException("expecting " + expect + ", got " + actual);
+  }
+
+  public static void check_f2l(long expect) {
+    float check = expect;
+    check *= 2;
+    long actual = (long) check;
+    if (actual != expect)
+      throw new RuntimeException("expecting " + expect + ", got " + actual);
+  }
+
+  public static void check_d2i(int expect) {
+    double check = expect;
+    check *= 2;
+    int actual = (int) check;
+    if (actual != expect)
+      throw new RuntimeException("expecting " + expect + ", got " + actual);
+  }
+
+  public static void check_d2l(long expect) {
+    double check = expect;
+    check *= 2;
+    long actual = (long) check;
+    if (actual != expect)
+      throw new RuntimeException("expecting " + expect + ", got " + actual);
+  }
+
+  public static void main(String[] args) {
+    check_f2i(Integer.MAX_VALUE);
+    check_f2i(Integer.MIN_VALUE);
+    check_f2l(Long.MAX_VALUE);
+    check_f2l(Long.MIN_VALUE);
+    check_d2i(Integer.MAX_VALUE);
+    check_d2i(Integer.MIN_VALUE);
+    check_d2l(Long.MAX_VALUE);
+    check_d2l(Long.MIN_VALUE);
+  }
+}
+