173 

   173 

   174   void empty_expression_stack() {

   174   void empty_expression_stack() {

   175     movptr(rsp, Address(rbp, frame::interpreter_frame_monitor_block_top_offset * wordSize));

   175     movptr(rsp, Address(rbp, frame::interpreter_frame_monitor_block_top_offset * wordSize));

   176     // NULL last_sp until next java call

   176     // NULL last_sp until next java call

   177     movptr(Address(rbp, frame::interpreter_frame_last_sp_offset * wordSize), (int32_t)NULL_WORD);

   177     movptr(Address(rbp, frame::interpreter_frame_last_sp_offset * wordSize), (int32_t)NULL_WORD);

   178   }

   179   }

   179 

   180 

   180   // Helpers for swap and dup

   181   // Helpers for swap and dup

   181   void load_ptr(int n, Register val);

   182   void load_ptr(int n, Register val);

   182   void store_ptr(int n, Register val);

   183   void store_ptr(int n, Register val);