Only use Type for compiling load handlers.

src/stub-cache.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 69 matching lines @@
   Handle<JSObject> StubHolder(Handle<JSObject> receiver,
                               Handle<JSObject> holder);
 
   Handle<Code> FindIC(Handle<Name> name,
                       Handle<Map> stub_holder_map,
                       Code::Kind kind,
                       Code::ExtraICState extra_state = Code::kNoExtraICState,
                       InlineCacheHolderFlag cache_holder = OWN_MAP);
 
   Handle<Code> FindHandler(Handle<Name> name,
-                           Handle<HeapObject> stub_holder,
+                           Handle<Map> map,
                            Code::Kind kind,
                            InlineCacheHolderFlag cache_holder = OWN_MAP,
                            StrictModeFlag strict_mode = kNonStrictMode);
 
   Handle<Code> ComputeMonomorphicIC(Handle<Name> name,
                                     Handle<Type> type,
                                     Handle<Code> handler,
                                     StrictModeFlag strict_mode);
 
-  Handle<Code> ComputeLoadNonexistent(Handle<Name> name, Handle<Object> object);
+  Handle<Code> ComputeLoadNonexistent(Handle<Name> name, Handle<Type> type);
 
   Handle<Code> ComputeKeyedLoadElement(Handle<Map> receiver_map);
 
   Handle<Code> ComputeKeyedStoreElement(Handle<Map> receiver_map,
                                         StrictModeFlag strict_mode,
                                         KeyedAccessStoreMode store_mode);
 
   Handle<Code> ComputeCallField(int argc,
                                 Code::Kind,
                                 Code::ExtraICState extra_state,
@@ skipping 431 matching lines @@
       case Code::LOAD_IC: return Builtins::kLoadIC_Miss;
       case Code::STORE_IC: return Builtins::kStoreIC_Miss;
       case Code::KEYED_LOAD_IC: return Builtins::kKeyedLoadIC_Miss;
       case Code::KEYED_STORE_IC: return Builtins::kKeyedStoreIC_Miss;
       default: UNREACHABLE();
     }
     return Builtins::kLoadIC_Miss;
   }
 
  protected:
-  virtual Register HandlerFrontendHeader(Handle<Object> object,
+  virtual Register HandlerFrontendHeader(Handle<Type> type,
                                          Register object_reg,
                                          Handle<JSObject> holder,
                                          Handle<Name> name,
                                          Label* miss) = 0;
 
   virtual void HandlerFrontendFooter(Handle<Name> name, Label* miss) = 0;
 
-  Register HandlerFrontend(Handle<Object> object,
+  Register HandlerFrontend(Handle<Type> type,
                            Register object_reg,
                            Handle<JSObject> holder,
                            Handle<Name> name);
 
   Handle<Code> GetCode(Code::Kind kind,
                        Code::StubType type,
                        Handle<Name> name);
 
   Handle<Code> GetICCode(Code::Kind kind,
                          Code::StubType type,
@@ skipping 37 matching lines @@
 
 
 class LoadStubCompiler: public BaseLoadStoreStubCompiler {
  public:
   LoadStubCompiler(Isolate* isolate,
                    InlineCacheHolderFlag cache_holder = OWN_MAP,
                    Code::Kind kind = Code::LOAD_IC)
       : BaseLoadStoreStubCompiler(isolate, kind, cache_holder) { }
   virtual ~LoadStubCompiler() { }
 
-  Handle<Code> CompileLoadField(Handle<Object> object,
+  Handle<Code> CompileLoadField(Handle<Type> type,
                                 Handle<JSObject> holder,
                                 Handle<Name> name,
                                 PropertyIndex index,
                                 Representation representation);
 
-  Handle<Code> CompileLoadCallback(Handle<Object> object,
+  Handle<Code> CompileLoadCallback(Handle<Type> type,
                                    Handle<JSObject> holder,
                                    Handle<Name> name,
                                    Handle<ExecutableAccessorInfo> callback);
 
-  Handle<Code> CompileLoadCallback(Handle<Object> object,
+  Handle<Code> CompileLoadCallback(Handle<Type> type,
                                    Handle<JSObject> holder,
                                    Handle<Name> name,
                                    const CallOptimization& call_optimization);
 
-  Handle<Code> CompileLoadConstant(Handle<Object> object,
+  Handle<Code> CompileLoadConstant(Handle<Type> type,
                                    Handle<JSObject> holder,
                                    Handle<Name> name,
                                    Handle<Object> value);
 
-  Handle<Code> CompileLoadInterceptor(Handle<Object> object,
+  Handle<Code> CompileLoadInterceptor(Handle<Type> type,
                                       Handle<JSObject> holder,
                                       Handle<Name> name);
 
-  Handle<Code> CompileLoadViaGetter(Handle<Object> object,
+  Handle<Code> CompileLoadViaGetter(Handle<Type> type,
                                     Handle<JSObject> holder,
                                     Handle<Name> name,
                                     Handle<JSFunction> getter);
 
   static void GenerateLoadViaGetter(MacroAssembler* masm,
                                     Register receiver,
                                     Handle<JSFunction> getter);
 
-  Handle<Code> CompileLoadNonexistent(Handle<Object> object,
+  Handle<Code> CompileLoadNonexistent(Handle<Type> type,
                                       Handle<JSObject> last,
-                                      Handle<Name> name,
-                                      Handle<JSGlobalObject> global);
+                                      Handle<Name> name);
 
-  Handle<Code> CompileLoadGlobal(Handle<Object> object,
+  Handle<Code> CompileLoadGlobal(Handle<Type> type,
                                  Handle<GlobalObject> holder,
                                  Handle<PropertyCell> cell,
                                  Handle<Name> name,
                                  bool is_dont_delete);
 
   static Register* registers();
 
  protected:
-  virtual Register HandlerFrontendHeader(Handle<Object> object,
+  virtual Register HandlerFrontendHeader(Handle<Type> type,
                                          Register object_reg,
                                          Handle<JSObject> holder,
                                          Handle<Name> name,
                                          Label* miss);
 
   virtual void HandlerFrontendFooter(Handle<Name> name, Label* miss);
 
-  Register CallbackHandlerFrontend(Handle<Object> object,
+  Register CallbackHandlerFrontend(Handle<Type> type,
                                    Register object_reg,
                                    Handle<JSObject> holder,
                                    Handle<Name> name,
                                    Handle<Object> callback);
-  void NonexistentHandlerFrontend(Handle<Object> object,
+  void NonexistentHandlerFrontend(Handle<Type> type,
                                   Handle<JSObject> last,
-                                  Handle<Name> name,
-                                  Handle<JSGlobalObject> global);
+                                  Handle<Name> name);
 
   void GenerateLoadField(Register reg,
                          Handle<JSObject> holder,
                          PropertyIndex field,
                          Representation representation);
   void GenerateLoadConstant(Handle<Object> value);
   void GenerateLoadCallback(Register reg,
                             Handle<ExecutableAccessorInfo> callback);
   void GenerateLoadCallback(const CallOptimization& call_optimization);
   void GenerateLoadInterceptor(Register holder_reg,
@@ skipping 112 matching lines @@
   static Builtins::Name SlowBuiltin(Code::Kind kind) {
     switch (kind) {
       case Code::STORE_IC: return Builtins::kStoreIC_Slow;
       case Code::KEYED_STORE_IC: return Builtins::kKeyedStoreIC_Slow;
       default: UNREACHABLE();
     }
     return Builtins::kStoreIC_Slow;
   }
 
  protected:
-  virtual Register HandlerFrontendHeader(Handle<Object> object,
+  virtual Register HandlerFrontendHeader(Handle<Type> type,
                                          Register object_reg,
                                          Handle<JSObject> holder,
                                          Handle<Name> name,
                                          Label* miss);
 
   virtual void HandlerFrontendFooter(Handle<Name> name, Label* miss);
   void GenerateRestoreName(MacroAssembler* masm,
                            Label* label,
                            Handle<Name> name);
 
@@ skipping 215 matching lines @@
   Handle<JSFunction> constant_function_;
   bool is_simple_api_call_;
   Handle<FunctionTemplateInfo> expected_receiver_type_;
   Handle<CallHandlerInfo> api_call_info_;
 };
 
 
 } }  // namespace v8::internal
 
 #endif  // V8_STUB_CACHE_H_