[Isolates] Merge crankshaft (r5922 from bleeding_edge).

src/contexts.h

 // Copyright 2006-2008 the V8 project authors. All rights reserved.
 // Redistribution and use in source and binary forms, with or without
 // modification, are permitted provided that the following conditions are
 // met:
 //
 //     * Redistributions of source code must retain the above copyright
 //       notice, this list of conditions and the following disclaimer.
 //     * Redistributions in binary form must reproduce the above
 //       copyright notice, this list of conditions and the following
 //       disclaimer in the documentation and/or other materials provided
@@ skipping 210 matching lines @@
     CALL_AS_CONSTRUCTOR_DELEGATE_INDEX,
     SCRIPT_FUNCTION_INDEX,
     OPAQUE_REFERENCE_FUNCTION_INDEX,
     CONTEXT_EXTENSION_FUNCTION_INDEX,
     OUT_OF_MEMORY_INDEX,
     MAP_CACHE_INDEX,
     CONTEXT_DATA_INDEX,
 
     // Properties from here are treated as weak references by the full GC.
     // Scavenge treats them as strong references.
-    NEXT_CONTEXT_LINK,
+    OPTIMIZED_FUNCTIONS_LIST,  // Weak.
+    NEXT_CONTEXT_LINK,  // Weak.
 
     // Total number of slots.
     GLOBAL_CONTEXT_SLOTS,
 
-    FIRST_WEAK_SLOT = NEXT_CONTEXT_LINK
+    FIRST_WEAK_SLOT = OPTIMIZED_FUNCTIONS_LIST
   };
 
   // Direct slot access.
   JSFunction* closure() { return JSFunction::cast(get(CLOSURE_INDEX)); }
   void set_closure(JSFunction* closure) { set(CLOSURE_INDEX, closure); }
 
   Context* fcontext() { return Context::cast(get(FCONTEXT_INDEX)); }
   void set_fcontext(Context* context) { set(FCONTEXT_INDEX, context); }
 
   Context* previous() {
@@ skipping 32 matching lines @@
 
   // Mark the global context with out of memory.
   inline void mark_out_of_memory();
 
   // The exception holder is the object used as a with object in
   // the implementation of a catch block.
   bool is_exception_holder(Object* object) {
     return IsCatchContext() && extension() == object;
   }
 
+  // A global context hold a list of all functions which have been optimized.
+  void AddOptimizedFunction(JSFunction* function);
+  void RemoveOptimizedFunction(JSFunction* function);
+  Object* OptimizedFunctionsListHead();
+  void ClearOptimizedFunctions();
+
 #define GLOBAL_CONTEXT_FIELD_ACCESSORS(index, type, name) \
   void  set_##name(type* value) {                         \
     ASSERT(IsGlobalContext());                            \
     set(index, value);                                    \
   }                                                       \
   type* name() {                                          \
     ASSERT(IsGlobalContext());                            \
     return type::cast(get(index));                        \
   }
   GLOBAL_CONTEXT_FIELDS(GLOBAL_CONTEXT_FIELD_ACCESSORS)
@@ skipping 56 matching lines @@
 #ifdef DEBUG
   // Bootstrapping-aware type checks.
   static bool IsBootstrappingOrContext(Object* object);
   static bool IsBootstrappingOrGlobalObject(Object* object);
 #endif
 };
 
 } }  // namespace v8::internal
 
 #endif  // V8_CONTEXTS_H_