--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/hotspot/src/share/vm/runtime/commandLineFlagConstraintsCompiler.cpp	Thu Jun 18 14:39:38 2015 -0500
@@ -0,0 +1,44 @@
+/*
+ * Copyright (c) 2015, 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.
+ *
+ */
+
+#include "precompiled.hpp"
+#include "runtime/arguments.hpp"
+#include "runtime/commandLineFlagConstraintsCompiler.hpp"
+#include "runtime/globals.hpp"
+#include "utilities/defaultStream.hpp"
+
+Flag::Error AliasLevelConstraintFunc(bool verbose, intx* value) {
+  if (CommandLineFlags::finishedInitializing() == true) {
+    if ((*value <= 1) && (Arguments::mode() == Arguments::_comp)) {
+      if (verbose == true) {
+        jio_fprintf(defaultStream::error_stream(),
+                  "AliasLevel (" INTX_FORMAT ") is not compatible "
+                  "with -Xcomp \n",
+                  *value);
+      }
+      return Flag::VIOLATES_CONSTRAINT;
+    }
+  }
+  return Flag::SUCCESS;
+}