Added infrastructure for optimizing new CanvasArray types in WebGL...

src/ic.h

 // Copyright 2006-2009 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 251 matching lines @@
   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);
 
+  // Generators for external array types. See objects.h.
+  // These are similar to the generic IC; they optimize the case of
+  // operating upon external array types but fall back to the runtime
+  // for all other types.
+  static void GenerateExternalArray(MacroAssembler* masm,
+                                    ExternalArrayType array_type);
+
   // 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,
                     Handle<String> name);
 
   // Stub accessors.
   static Code* initialize_stub() {
     return Builtins::builtin(Builtins::KeyedLoadIC_Initialize);
   }
   static Code* megamorphic_stub() {
     return Builtins::builtin(Builtins::KeyedLoadIC_Generic);
   }
   static Code* generic_stub() {
     return Builtins::builtin(Builtins::KeyedLoadIC_Generic);
   }
   static Code* pre_monomorphic_stub() {
     return Builtins::builtin(Builtins::KeyedLoadIC_PreMonomorphic);
   }
+  static Code* external_array_stub(JSObject::ElementsKind elements_kind);
 
   static void Clear(Address address, Code* target);
 
   // Support for patching the map that is checked in an inlined
   // version of keyed load.
   static bool PatchInlinedLoad(Address address, Object* map);
 
   friend class IC;
 };
 
@@ skipping 44 matching lines @@
                 Handle<Object> object,
                 Handle<Object> name,
                 Handle<Object> value);
 
   // Code generators for stub routines.  Only called once at startup.
   static void GenerateInitialize(MacroAssembler* masm);
   static void GenerateMiss(MacroAssembler* masm);
   static void GenerateGeneric(MacroAssembler* masm);
   static void GenerateExtendStorage(MacroAssembler* masm);
 
+  // Generators for external array types. See objects.h.
+  // These are similar to the generic IC; they optimize the case of
+  // operating upon external array types but fall back to the runtime
+  // for all other types.
+  static void GenerateExternalArray(MacroAssembler* masm,
+                                    ExternalArrayType array_type);
+
   // Clear the inlined version so the IC is always hit.
   static void ClearInlinedVersion(Address address);
 
   // Restore the inlined version so the fast case can get hit.
   static void RestoreInlinedVersion(Address address);
 
  private:
   static void Generate(MacroAssembler* masm, const ExternalReference& f);
 
   // Update the inline cache.
   void UpdateCaches(LookupResult* lookup,
                     State state,
                     Handle<JSObject> receiver,
                     Handle<String> name,
                     Handle<Object> value);
 
   // Stub accessors.
   static Code* initialize_stub() {
     return Builtins::builtin(Builtins::KeyedStoreIC_Initialize);
   }
   static Code* megamorphic_stub() {
     return Builtins::builtin(Builtins::KeyedStoreIC_Generic);
   }
   static Code* generic_stub() {
     return Builtins::builtin(Builtins::KeyedStoreIC_Generic);
   }
+  static Code* external_array_stub(JSObject::ElementsKind elements_kind);
 
   static void Clear(Address address, Code* target);
 
   // Support for patching the map that is checked in an inlined
   // version of keyed store.
   // The address is the patch point for the IC call
   // (Assembler::kCallTargetAddressOffset before the end of
   // the call/return address).
   // The map is the new map that the inlined code should check against.
   static bool PatchInlinedStore(Address address, Object* map);
 
   friend class IC;
 };
 
 
 } }  // namespace v8::internal
 
 #endif  // V8_IC_H_