--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/src/hotspot/share/ci/ciCallSite.cpp	Tue Sep 12 19:03:39 2017 +0200
@@ -0,0 +1,58 @@
+/*
+ * Copyright (c) 2009, 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 "classfile/javaClasses.inline.hpp"
+#include "ci/ciCallSite.hpp"
+#include "ci/ciUtilities.hpp"
+
+// ciCallSite
+
+bool ciCallSite::is_constant_call_site() {
+  return klass()->is_subclass_of(CURRENT_ENV->ConstantCallSite_klass());
+}
+bool ciCallSite::is_mutable_call_site() {
+  return klass()->is_subclass_of(CURRENT_ENV->MutableCallSite_klass());
+}
+bool ciCallSite::is_volatile_call_site() {
+  return klass()->is_subclass_of(CURRENT_ENV->VolatileCallSite_klass());
+}
+
+// ------------------------------------------------------------------
+// ciCallSite::get_target
+//
+// Return the target MethodHandle of this CallSite.
+ciMethodHandle* ciCallSite::get_target() const {
+  VM_ENTRY_MARK;
+  oop method_handle_oop = java_lang_invoke_CallSite::target(get_oop());
+  return CURRENT_ENV->get_object(method_handle_oop)->as_method_handle();
+}
+
+// ------------------------------------------------------------------
+// ciCallSite::print
+//
+// Print debugging information about the CallSite.
+void ciCallSite::print() {
+  Unimplemented();
+}