--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/src/hotspot/share/ci/ciSignature.hpp	Tue Sep 12 19:03:39 2017 +0200
@@ -0,0 +1,74 @@
+/*
+ * Copyright (c) 1999, 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.
+ *
+ */
+
+#ifndef SHARE_VM_CI_CISIGNATURE_HPP
+#define SHARE_VM_CI_CISIGNATURE_HPP
+
+#include "ci/ciClassList.hpp"
+#include "ci/ciSymbol.hpp"
+#include "utilities/globalDefinitions.hpp"
+#include "utilities/growableArray.hpp"
+
+// ciSignature
+//
+// This class represents the signature of a method.
+class ciSignature : public ResourceObj {
+private:
+  ciSymbol* _symbol;
+  ciKlass*  _accessing_klass;
+
+  GrowableArray<ciType*>* _types;
+  int _size;   // number of stack slots required for arguments
+  int _count;  // number of parameter types in the signature
+
+  friend class ciMethod;
+  friend class ciBytecodeStream;
+  friend class ciObjectFactory;
+
+  ciSignature(ciKlass* accessing_klass, const constantPoolHandle& cpool, ciSymbol* signature);
+  ciSignature(ciKlass* accessing_klass,                           ciSymbol* signature, ciMethodType* method_type);
+
+  void get_all_klasses();
+
+  Symbol* get_symbol() const                     { return _symbol->get_symbol(); }
+
+public:
+  ciSymbol* as_symbol() const                    { return _symbol; }
+  ciKlass*  accessing_klass() const              { return _accessing_klass; }
+
+  ciType*   return_type() const;
+  ciType*   type_at(int index) const;
+
+  int       size() const                         { return _size; }
+  int       count() const                        { return _count; }
+
+  int       arg_size_for_bc(Bytecodes::Code bc)  { return size() + (Bytecodes::has_receiver(bc) ? 1 : 0); }
+
+  bool equals(ciSignature* that);
+
+  void print_signature();
+  void print();
+};
+
+#endif // SHARE_VM_CI_CISIGNATURE_HPP