--- a/src/hotspot/cpu/x86/frame_x86.hpp	Fri Oct 13 15:08:56 2017 +0200
+++ b/src/hotspot/cpu/x86/frame_x86.hpp	Fri Oct 13 12:29:45 2017 -0700
@@ -117,7 +117,7 @@
   // original sp we use that convention.
 
   intptr_t*     _unextended_sp;
-  void adjust_unextended_sp();
+  void adjust_unextended_sp() NOT_DEBUG_RETURN;
 
   intptr_t* ptr_at_addr(int offset) const {
     return (intptr_t*) addr_at(offset);