--- a/src/hotspot/cpu/s390/interp_masm_s390.hpp	Sun Oct 29 18:13:18 2017 -0700
+++ b/src/hotspot/cpu/s390/interp_masm_s390.hpp	Mon Oct 30 17:14:39 2017 +0100
@@ -86,6 +86,8 @@
   void dispatch_next_noverify_oop(TosState state, int step = 0);
   void dispatch_via(TosState state, address* table);
 
+  void narrow(Register result, Register ret_type);
+
   // Jump to an invoked target.
   void prepare_to_jump_from_interpreted(Register method);
   void jump_from_interpreted(Register method, Register temp);