Add OptimizedCodeList and DeoptimizedCodeList to native contexts. Both lists are weak. This makes i…

src/contexts.h

 // Copyright 2012 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 319 matching lines @@
     OBSERVERS_DELIVER_CHANGES_INDEX,
     GENERATOR_FUNCTION_MAP_INDEX,
     STRICT_MODE_GENERATOR_FUNCTION_MAP_INDEX,
     GENERATOR_OBJECT_PROTOTYPE_MAP_INDEX,
     GENERATOR_RESULT_MAP_INDEX,
     RANDOM_SEED_INDEX,
 
     // Properties from here are treated as weak references by the full GC.
     // Scavenge treats them as strong references.
     OPTIMIZED_FUNCTIONS_LIST,  // Weak.
-    MAP_CACHE_INDEX,  // Weak.
-    NEXT_CONTEXT_LINK,  // Weak.
+    OPTIMIZED_CODE_LIST,       // Weak.
+    DEOPTIMIZED_CODE_LIST,     // Weak.
+    MAP_CACHE_INDEX,           // Weak.
+    NEXT_CONTEXT_LINK,         // Weak.
 
     // Total number of slots.
     NATIVE_CONTEXT_SLOTS,
 
     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); }
@@ skipping 69 matching lines @@
     Map* map = this->map();
     return map == map->GetHeap()->global_context_map();
   }
 
   // Tells whether the native context is marked with out of memory.
   inline bool has_out_of_memory();
 
   // Mark the native context with out of memory.
   inline void mark_out_of_memory();
 
-  // A native context hold a list of all functions which have been optimized.
+  // A native context holds a list of all functions with optimized code.
   void AddOptimizedFunction(JSFunction* function);
   void RemoveOptimizedFunction(JSFunction* function);
+  void SetOptimizedFunctionsListHead(Object* head);
   Object* OptimizedFunctionsListHead();
-  void ClearOptimizedFunctions();
+
+  // The native context also stores a list of all optimized code and a
+  // list of all deoptimized code, which are needed by the deoptimizer.
+  void AddOptimizedCode(Code* code);
+  void SetOptimizedCodeListHead(Object* head);
+  Object* OptimizedCodeListHead();
+  void SetDeoptimizedCodeListHead(Object* head);
+  Object* DeoptimizedCodeListHead();
 
   Handle<Object> ErrorMessageForCodeGenerationFromStrings();
 
 #define NATIVE_CONTEXT_FIELD_ACCESSORS(index, type, name) \
   void  set_##name(type* value) {                         \
     ASSERT(IsNativeContext());                            \
     set(index, value);                                    \
   }                                                       \
   bool is_##name(type* value) {                           \
     ASSERT(IsNativeContext());                            \
@@ skipping 65 matching lines @@
   static bool IsBootstrappingOrGlobalObject(Isolate* isolate, Object* object);
 #endif
 
   STATIC_CHECK(kHeaderSize == Internals::kContextHeaderSize);
   STATIC_CHECK(EMBEDDER_DATA_INDEX == Internals::kContextEmbedderDataIndex);
 };
 
 } }  // namespace v8::internal
 
 #endif  // V8_CONTEXTS_H_