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src/hotspot/share/code/stubs.hpp

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rev 47398 : 8166317: InterpreterCodeSize should be computed
Reviewed-by: kvn, coleenp

@@ -199,16 +199,19 @@
   // Stub deallocation
   void  remove_first();                          // remove the first stub in the queue
   void  remove_first(int n);                     // remove the first n stubs in the queue
   void  remove_all();                            // remove all stubs in the queue
 
+  void deallocate_unused_tail();                 // deallocate the unused tail of the underlying CodeBlob
+                                                 // only used from TemplateInterpreter::initialize()
   // Iteration
   static void queues_do(void f(StubQueue* s));   // call f with each StubQueue
   void  stubs_do(void f(Stub* s));               // call f with all stubs
   Stub* first() const                            { return number_of_stubs() > 0 ? stub_at(_queue_begin) : NULL; }
   Stub* next(Stub* s) const                      { int i = index_of(s) + stub_size(s);
-                                                   if (i == _buffer_limit) i = 0;
+                                                   // Only wrap around in the non-contiguous case (see stubss.cpp)
+                                                   if (i == _buffer_limit && _queue_end < _buffer_limit) i = 0;
                                                    return (i == _queue_end) ? NULL : stub_at(i);
                                                  }
 
   address stub_code_begin(Stub* s) const         { return _stub_interface->code_begin(s); }
   address stub_code_end(Stub* s) const           { return _stub_interface->code_end(s);   }
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