src/share/vm/oops/method.hpp

@@ -80,13 +80,14 @@
     _force_inline         = 1 << 2,
     _dont_inline          = 1 << 3,
     _hidden               = 1 << 4,
     _has_injected_profile = 1 << 5,
     _running_emcp         = 1 << 6,
-    _intrinsic_candidate  = 1 << 7
+    _intrinsic_candidate   = 1 << 7,
+    _reserved_stack_access = 1 << 8
   };
-  u1 _flags;
+  u2 _flags;
 
 #ifndef PRODUCT
   int               _compiled_invocation_count;  // Number of nmethod invocations so far (for perf. debugging)
 #endif
   // Entry point for calling both from and to the interpreter.

@@ -827,10 +828,18 @@
   }
   void set_has_injected_profile(bool x) {
     _flags = x ? (_flags | _has_injected_profile) : (_flags & ~_has_injected_profile);
   }
 
+  bool has_reserved_stack_access() {
+      return (_flags & _reserved_stack_access) != 0;
+  }
+  
+  void set_has_reserved_stack_access(bool x) {
+    _flags = x ? (_flags | _reserved_stack_access) : (_flags & ~_reserved_stack_access);
+  }
+ 
   ConstMethod::MethodType method_type() const {
       return _constMethod->method_type();
   }
   bool is_overpass() const { return method_type() == ConstMethod::OVERPASS; }