Inline the inobject property case for named property loads.

src/ic.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 198 matching lines @@
   static void GeneratePreMonomorphic(MacroAssembler* masm);
   static void GenerateMiss(MacroAssembler* masm);
   static void GenerateMegamorphic(MacroAssembler* masm);
   static void GenerateNormal(MacroAssembler* masm);
 
   // Specialized code generator routines.
   static void GenerateArrayLength(MacroAssembler* masm);
   static void GenerateStringLength(MacroAssembler* masm);
   static void GenerateFunctionPrototype(MacroAssembler* masm);
 
+  // The offset from the inlined patch site to the start of the
+  // inlined load instruction.  It is 7 bytes (test eax, imm) plus
+  // 6 bytes (jne slow_label).
+  static const int kOffsetToLoadInstruction = 13;
+
  private:
   static void Generate(MacroAssembler* masm, const ExternalReference& f);
 
   // Update the inline cache and the global stub cache based on the
   // lookup result.
   void UpdateCaches(LookupResult* lookup,
                     State state,
                     Handle<Object> object,
                     Handle<String> name);
 
   // Stub accessors.
   static Code* megamorphic_stub() {
     return Builtins::builtin(Builtins::LoadIC_Megamorphic);
   }
   static Code* initialize_stub() {
     return Builtins::builtin(Builtins::LoadIC_Initialize);
   }
   static Code* pre_monomorphic_stub() {
     return Builtins::builtin(Builtins::LoadIC_PreMonomorphic);
   }
 
   static void Clear(Address address, Code* target);
+
+  // Clear the use of the inlined version.
+  static void ClearInlinedVersion(Address address);
+
+  static bool PatchInlinedLoad(Address address, Object* map, int index);
+
   friend class IC;
 };
 
 
 class KeyedLoadIC: public IC {
  public:
   KeyedLoadIC() : IC(NO_EXTRA_FRAME) { ASSERT(target()->is_keyed_load_stub()); }
 
   Object* Load(State state, Handle<Object> object, Handle<Object> key);
 
   // Code generator routines.
   static void GenerateMiss(MacroAssembler* masm);
   static void GenerateInitialize(MacroAssembler* masm);
   static void GeneratePreMonomorphic(MacroAssembler* masm);
   static void GenerateGeneric(MacroAssembler* masm);
 
-  // Check if this IC corresponds to an inlined version.
-  static bool HasInlinedVersion(Address address);
-
   // Clear the use of the inlined version.
   static void ClearInlinedVersion(Address address);
 
  private:
   static void Generate(MacroAssembler* masm, const ExternalReference& f);
 
   // Update the inline cache.
   void UpdateCaches(LookupResult* lookup,
                     State state,
                     Handle<Object> object,
@@ skipping 10 matching lines @@
     return Builtins::builtin(Builtins::KeyedLoadIC_Generic);
   }
   static Code* pre_monomorphic_stub() {
     return Builtins::builtin(Builtins::KeyedLoadIC_PreMonomorphic);
   }
 
   static void Clear(Address address, Code* target);
 
   // Support for patching the map that is checked in an inlined
   // version of keyed load.
-  static void PatchInlinedMapCheck(Address address, Object* map);
+  static bool PatchInlinedLoad(Address address, Object* map);
 
   friend class IC;
 };
 
 
 class StoreIC: public IC {
  public:
   StoreIC() : IC(NO_EXTRA_FRAME) { ASSERT(target()->is_store_stub()); }
 
   Object* Store(State state,
@@ skipping 67 matching lines @@
   }
 
   static void Clear(Address address, Code* target);
   friend class IC;
 };
 
 
 } }  // namespace v8::internal
 
 #endif  // V8_IC_H_