--- old/src/share/vm/oops/method.hpp	2017-06-20 16:28:33.322253690 -0400
+++ new/src/share/vm/oops/method.hpp	2017-06-20 16:28:32.370248969 -0400
@@ -103,6 +103,7 @@
   // NULL only at safepoints (because of a de-opt).
   CompiledMethod* volatile _code;                       // Points to the corresponding piece of native code
   volatile address           _from_interpreted_entry; // Cache of _code ? _adapter->i2c_entry() : _i2i_entry
+  int _max_vt_buffer; // max number of VT buffer chunk to use before recycling
 
 #if INCLUDE_AOT && defined(TIERED)
   CompiledMethod* _aot_code;
@@ -263,6 +264,12 @@
   int  max_locals() const                        { return constMethod()->max_locals(); }
   void set_max_locals(int size)                  { constMethod()->set_max_locals(size); }
 
+  // value type buffering
+  void initialize_max_vt_buffer();
+  int max_vt_buffer() const                      { return _max_vt_buffer; }
+  void set_max_vt_buffer(int size)               { _max_vt_buffer = size; }
+
+
   int highest_comp_level() const;
   void set_highest_comp_level(int level);
   int highest_osr_comp_level() const;
@@ -705,6 +712,8 @@
   static int intrinsic_id_offset_in_bytes()      { return offset_of(Method, _intrinsic_id); }
   static int intrinsic_id_size_in_bytes()        { return sizeof(u2); }
 
+  static ByteSize max_vt_buffer_offset()         { return byte_offset_of(Method, _max_vt_buffer); }
+
   // Static methods that are used to implement member methods where an exposed this pointer
   // is needed due to possible GCs
   static objArrayHandle resolved_checked_exceptions_impl(Method* method, TRAPS);