Merge bleeding_edge.

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 72 matching lines @@
   Handle<Code> FindIC(Handle<Name> name,
                       Handle<Map> stub_holder_map,
                       Code::Kind kind,
                       Code::ExtraICState extra_state = Code::kNoExtraICState);
 
   Handle<Code> FindIC(Handle<Name> name,
                       Handle<JSObject> stub_holder,
                       Code::Kind kind,
                       Code::ExtraICState extra_state = Code::kNoExtraICState);
 
-  Handle<Code> FindLoadHandler(Handle<Name> name,
-                               Handle<JSObject> receiver,
-                               Code::Kind kind);
-
-  Handle<Code> FindStoreHandler(Handle<Name> name,
-                                Handle<JSObject> receiver,
-                                Code::Kind kind,
-                                StrictModeFlag strict_mode);
+  Handle<Code> FindHandler(Handle<Name> name,
+                           Handle<JSObject> receiver,
+                           Code::Kind kind,
+                           StrictModeFlag strict_mode = kNonStrictMode);
 
   Handle<Code> ComputeMonomorphicIC(Handle<HeapObject> receiver,
                                     Handle<Code> handler,
                                     Handle<Name> name,
                                     StrictModeFlag strict_mode);
 
   // Computes the right stub matching. Inserts the result in the
   // cache before returning.  This might compile a stub if needed.
   Handle<Code> ComputeLoadNonexistent(Handle<Name> name,
                                       Handle<JSObject> object);
 
-  Handle<Code> ComputeLoadField(Handle<Name> name,
-                                Handle<JSObject> object,
-                                Handle<JSObject> holder,
-                                PropertyIndex field_index,
-                                Representation representation);
-
-  Handle<Code> ComputeLoadCallback(Handle<Name> name,
-                                   Handle<JSObject> object,
-                                   Handle<JSObject> holder,
-                                   Handle<ExecutableAccessorInfo> callback);
-
-  Handle<Code> ComputeLoadCallback(Handle<Name> name,
-                                   Handle<JSObject> object,
-                                   Handle<JSObject> holder,
-                                   const CallOptimization& call_optimization);
-
-  Handle<Code> ComputeLoadViaGetter(Handle<Name> name,
-                                    Handle<JSObject> object,
-                                    Handle<JSObject> holder,
-                                    Handle<JSFunction> getter);
-
-  Handle<Code> ComputeLoadConstant(Handle<Name> name,
-                                   Handle<JSObject> object,
-                                   Handle<JSObject> holder,
-                                   Handle<Object> value);
-
-  Handle<Code> ComputeLoadInterceptor(Handle<Name> name,
-                                      Handle<JSObject> object,
-                                      Handle<JSObject> holder);
-
-  Handle<Code> ComputeLoadNormal(Handle<Name> name,
-                                 Handle<JSObject> object);
-
   Handle<Code> ComputeLoadGlobal(Handle<Name> name,
                                  Handle<JSObject> object,
                                  Handle<GlobalObject> holder,
                                  Handle<PropertyCell> cell,
                                  bool is_dont_delete);
 
   // ---
 
   Handle<Code> ComputeKeyedLoadField(Handle<Name> name,
                                      Handle<JSObject> object,
@@ skipping 15 matching lines @@
 
   Handle<Code> ComputeKeyedLoadConstant(Handle<Name> name,
                                         Handle<JSObject> object,
                                         Handle<JSObject> holder,
                                         Handle<Object> value);
 
   Handle<Code> ComputeKeyedLoadInterceptor(Handle<Name> name,
                                            Handle<JSObject> object,
                                            Handle<JSObject> holder);
 
-  // ---
-
-  Handle<Code> ComputeStoreField(Handle<Name> name,
-                                 Handle<JSObject> object,
-                                 LookupResult* lookup,
-                                 StrictModeFlag strict_mode);
-
-  Handle<Code> ComputeStoreTransition(Handle<Name> name,
-                                      Handle<JSObject> object,
-                                      LookupResult* lookup,
-                                      Handle<Map> transition,
-                                      StrictModeFlag strict_mode);
-
-  Handle<Code> ComputeStoreNormal(StrictModeFlag strict_mode);
-
   Handle<Code> ComputeStoreGlobal(Handle<Name> name,
                                   Handle<GlobalObject> object,
                                   Handle<PropertyCell> cell,
                                   Handle<Object> value,
                                   StrictModeFlag strict_mode);
 
-  Handle<Code> ComputeStoreCallback(Handle<Name> name,
-                                    Handle<JSObject> object,
-                                    Handle<JSObject> holder,
-                                    Handle<ExecutableAccessorInfo> callback,
-                                    StrictModeFlag strict_mode);
-
-  Handle<Code> ComputeStoreCallback(Handle<Name> name,
-                                    Handle<JSObject> object,
-                                    Handle<JSObject> holder,
-                                    const CallOptimization& call_optimation,
-                                    StrictModeFlag strict_mode);
-
-  Handle<Code> ComputeStoreViaSetter(Handle<Name> name,
-                                     Handle<JSObject> object,
-                                     Handle<JSObject> holder,
-                                     Handle<JSFunction> setter,
-                                     StrictModeFlag strict_mode);
-
-  Handle<Code> ComputeStoreInterceptor(Handle<Name> name,
-                                       Handle<JSObject> object,
-                                       StrictModeFlag strict_mode);
-
-  // ---
-
-  Handle<Code> ComputeKeyedStoreField(Handle<Name> name,
-                                      Handle<JSObject> object,
-                                      LookupResult* lookup,
-                                      StrictModeFlag strict_mode);
-  Handle<Code> ComputeKeyedStoreTransition(Handle<Name> name,
-                                           Handle<JSObject> object,
-                                           LookupResult* lookup,
-                                           Handle<Map> transition,
-                                           StrictModeFlag strict_mode);
-
   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,
                                 Handle<Name> name,
                                 Handle<Object> object,
                                 Handle<JSObject> holder,
                                 PropertyIndex index);
 
   Handle<Code> ComputeCallConstant(int argc,
                                    Code::Kind,
@@ skipping 368 matching lines @@
   MacroAssembler masm_;
   Failure* failure_;
 };
 
 
 enum FrontendCheckType { PERFORM_INITIAL_CHECKS, SKIP_INITIAL_CHECKS };
 
 
 class BaseLoadStoreStubCompiler: public StubCompiler {
  public:
-  BaseLoadStoreStubCompiler(Isolate* isolate, Register* registers)
-      : StubCompiler(isolate), registers_(registers) { }
+  BaseLoadStoreStubCompiler(Isolate* isolate, Code::Kind kind)
+      : StubCompiler(isolate), kind_(kind) {
+    InitializeRegisters();
+  }
   virtual ~BaseLoadStoreStubCompiler() { }
 
   Handle<Code> CompileMonomorphicIC(Handle<Map> receiver_map,
                                     Handle<Code> handler,
                                     Handle<Name> name);
 
   Handle<Code> CompilePolymorphicIC(MapHandleList* receiver_maps,
                                     CodeHandleList* handlers,
                                     Handle<Name> name,
                                     Code::StubType type,
@@ skipping 32 matching lines @@
                            Label* success);
 
   Handle<Code> GetCode(Code::Kind kind,
                        Code::StubType type,
                        Handle<Name> name);
 
   Handle<Code> GetICCode(Code::Kind kind,
                          Code::StubType type,
                          Handle<Name> name,
                          InlineCacheState state = MONOMORPHIC);
+  Code::Kind kind() { return kind_; }
+
+  Logger::LogEventsAndTags log_kind(Handle<Code> code) {
+    if (!code->is_inline_cache_stub()) return Logger::STUB_TAG;
+    if (kind_ == Code::LOAD_IC) {
+      return code->ic_state() == MONOMORPHIC
+          ? Logger::LOAD_IC_TAG : Logger::LOAD_POLYMORPHIC_IC_TAG;
+    } else if (kind_ == Code::KEYED_LOAD_IC) {
+      return code->ic_state() == MONOMORPHIC
+          ? Logger::KEYED_LOAD_IC_TAG : Logger::KEYED_LOAD_POLYMORPHIC_IC_TAG;
+    } else if (kind_ == Code::STORE_IC) {
+      return code->ic_state() == MONOMORPHIC
+          ? Logger::STORE_IC_TAG : Logger::STORE_POLYMORPHIC_IC_TAG;
+    } else {
+      return code->ic_state() == MONOMORPHIC
+          ? Logger::KEYED_STORE_IC_TAG : Logger::KEYED_STORE_POLYMORPHIC_IC_TAG;
+    }
+  }
+  void JitEvent(Handle<Name> name, Handle<Code> code);
 
   virtual Code::ExtraICState extra_state() { return Code::kNoExtraICState; }
-  virtual Logger::LogEventsAndTags log_kind(Handle<Code> code) = 0;
-  virtual void JitEvent(Handle<Name> name, Handle<Code> code) = 0;
-  virtual Code::Kind kind() = 0;
   virtual Register receiver() = 0;
   virtual Register name() = 0;
   virtual Register scratch1() = 0;
   virtual Register scratch2() = 0;
   virtual Register scratch3() = 0;
 
+  void InitializeRegisters();
+
+  Code::Kind kind_;
   Register* registers_;
 };
 
 
-class BaseLoadStubCompiler: public BaseLoadStoreStubCompiler {
+class LoadStubCompiler: public BaseLoadStoreStubCompiler {
  public:
-  BaseLoadStubCompiler(Isolate* isolate, Register* registers)
-      : BaseLoadStoreStubCompiler(isolate, registers) { }
-  virtual ~BaseLoadStubCompiler() { }
+  LoadStubCompiler(Isolate* isolate, Code::Kind kind = Code::LOAD_IC)
+      : BaseLoadStoreStubCompiler(isolate, kind) { }
+  virtual ~LoadStubCompiler() { }
 
   Handle<Code> CompileLoadField(Handle<JSObject> object,
                                 Handle<JSObject> holder,
                                 Handle<Name> name,
                                 PropertyIndex index,
                                 Representation representation);
 
   Handle<Code> CompileLoadCallback(Handle<JSObject> object,
                                    Handle<JSObject> holder,
                                    Handle<Name> name,
                                    Handle<ExecutableAccessorInfo> callback);
 
   Handle<Code> CompileLoadCallback(Handle<JSObject> object,
                                    Handle<JSObject> holder,
                                    Handle<Name> name,
                                    const CallOptimization& call_optimization);
 
   Handle<Code> CompileLoadConstant(Handle<JSObject> object,
                                    Handle<JSObject> holder,
                                    Handle<Name> name,
                                    Handle<Object> value);
 
   Handle<Code> CompileLoadInterceptor(Handle<JSObject> object,
                                       Handle<JSObject> holder,
                                       Handle<Name> name);
 
+  Handle<Code> CompileLoadViaGetter(Handle<JSObject> object,
+                                    Handle<JSObject> holder,
+                                    Handle<Name> name,
+                                    Handle<JSFunction> getter);
+
+  static void GenerateLoadViaGetter(MacroAssembler* masm,
+                                    Register receiver,
+                                    Handle<JSFunction> getter);
+
+  Handle<Code> CompileLoadNonexistent(Handle<JSObject> object,
+                                      Handle<JSObject> last,
+                                      Handle<Name> name,
+                                      Handle<GlobalObject> global);
+
+  Handle<Code> CompileLoadGlobal(Handle<JSObject> object,
+                                 Handle<GlobalObject> holder,
+                                 Handle<PropertyCell> cell,
+                                 Handle<Name> name,
+                                 bool is_dont_delete);
+
+  static Register* registers();
+
  protected:
   virtual Register HandlerFrontendHeader(Handle<JSObject> object,
                                          Register object_reg,
                                          Handle<JSObject> holder,
                                          Handle<Name> name,
                                          Label* miss);
 
   virtual void HandlerFrontendFooter(Handle<Name> name,
                                      Label* success,
                                      Label* miss);
@@ skipping 30 matching lines @@
 
   virtual Register receiver() { return registers_[0]; }
   virtual Register name()     { return registers_[1]; }
   virtual Register scratch1() { return registers_[2]; }
   virtual Register scratch2() { return registers_[3]; }
   virtual Register scratch3() { return registers_[4]; }
   Register scratch4() { return registers_[5]; }
 };
 
 
-class LoadStubCompiler: public BaseLoadStubCompiler {
- public:
-  explicit LoadStubCompiler(Isolate* isolate)
-      : BaseLoadStubCompiler(isolate, registers()) { }
-
-  Handle<Code> CompileLoadNonexistent(Handle<JSObject> object,
-                                      Handle<JSObject> last,
-                                      Handle<Name> name,
-                                      Handle<GlobalObject> global);
-
-  static void GenerateLoadViaGetter(MacroAssembler* masm,
-                                    Handle<JSFunction> getter);
-
-  Handle<Code> CompileLoadViaGetter(Handle<JSObject> object,
-                                    Handle<JSObject> holder,
-                                    Handle<Name> name,
-                                    Handle<JSFunction> getter);
-
-  Handle<Code> CompileLoadGlobal(Handle<JSObject> object,
-                                 Handle<GlobalObject> holder,
-                                 Handle<PropertyCell> cell,
-                                 Handle<Name> name,
-                                 bool is_dont_delete);
-
- private:
-  static Register* registers();
-  virtual Code::Kind kind() { return Code::LOAD_IC; }
-  virtual Logger::LogEventsAndTags log_kind(Handle<Code> code) {
-    if (!code->is_inline_cache_stub()) return Logger::STUB_TAG;
-    return code->ic_state() == MONOMORPHIC
-        ? Logger::LOAD_IC_TAG : Logger::LOAD_POLYMORPHIC_IC_TAG;
-  }
-  virtual void JitEvent(Handle<Name> name, Handle<Code> code);
-};
-
-
-class KeyedLoadStubCompiler: public BaseLoadStubCompiler {
+class KeyedLoadStubCompiler: public LoadStubCompiler {
  public:
   explicit KeyedLoadStubCompiler(Isolate* isolate)
-      : BaseLoadStubCompiler(isolate, registers()) { }
+      : LoadStubCompiler(isolate, Code::KEYED_LOAD_IC) { }
 
   Handle<Code> CompileLoadElement(Handle<Map> receiver_map);
 
   void CompileElementHandlers(MapHandleList* receiver_maps,
                               CodeHandleList* handlers);
 
   static void GenerateLoadDictionaryElement(MacroAssembler* masm);
 
+ protected:
+  static Register* registers();
+
  private:
-  static Register* registers();
-  virtual Code::Kind kind() { return Code::KEYED_LOAD_IC; }
-  virtual Logger::LogEventsAndTags log_kind(Handle<Code> code) {
-    if (!code->is_inline_cache_stub()) return Logger::STUB_TAG;
-    return code->ic_state() == MONOMORPHIC
-        ? Logger::KEYED_LOAD_IC_TAG : Logger::KEYED_LOAD_POLYMORPHIC_IC_TAG;
-  }
-  virtual void JitEvent(Handle<Name> name, Handle<Code> code);
   virtual void GenerateNameCheck(Handle<Name> name,
                                  Register name_reg,
                                  Label* miss);
+  friend class BaseLoadStoreStubCompiler;
 };
 
 
-class BaseStoreStubCompiler: public BaseLoadStoreStubCompiler {
+class StoreStubCompiler: public BaseLoadStoreStubCompiler {
  public:
-  BaseStoreStubCompiler(Isolate* isolate,
-                        StrictModeFlag strict_mode,
-                        Register* registers)
-      : BaseLoadStoreStubCompiler(isolate, registers),
+  StoreStubCompiler(Isolate* isolate,
+                    StrictModeFlag strict_mode,
+                    Code::Kind kind = Code::STORE_IC)
+      : BaseLoadStoreStubCompiler(isolate, kind),
         strict_mode_(strict_mode) { }
 
-  virtual ~BaseStoreStubCompiler() { }
+  virtual ~StoreStubCompiler() { }
 
   Handle<Code> CompileStoreTransition(Handle<JSObject> object,
                                       LookupResult* lookup,
                                       Handle<Map> transition,
                                       Handle<Name> name);
 
   Handle<Code> CompileStoreField(Handle<JSObject> object,
                                  LookupResult* lookup,
                                  Handle<Name> name);
 
@@ skipping 20 matching lines @@
   void GenerateStoreField(MacroAssembler* masm,
                           Handle<JSObject> object,
                           LookupResult* lookup,
                           Register receiver_reg,
                           Register name_reg,
                           Register value_reg,
                           Register scratch1,
                           Register scratch2,
                           Label* miss_label);
 
-  static Builtins::Name MissBuiltin(Code::Kind kind) {
-    switch (kind) {
-      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;
-  }
+  Handle<Code> CompileStoreCallback(Handle<JSObject> object,
+                                    Handle<JSObject> holder,
+                                    Handle<Name> name,
+                                    Handle<ExecutableAccessorInfo> callback);
+
+  Handle<Code> CompileStoreCallback(Handle<JSObject> object,
+                                    Handle<JSObject> holder,
+                                    Handle<Name> name,
+                                    const CallOptimization& call_optimization);
+
+  static void GenerateStoreViaSetter(MacroAssembler* masm,
+                                     Handle<JSFunction> setter);
+
+  Handle<Code> CompileStoreViaSetter(Handle<JSObject> object,
+                                     Handle<JSObject> holder,
+                                     Handle<Name> name,
+                                     Handle<JSFunction> setter);
+
+  Handle<Code> CompileStoreInterceptor(Handle<JSObject> object,
+                                       Handle<Name> name);
+
   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:
@@ skipping 12 matching lines @@
 
   virtual Register receiver() { return registers_[0]; }
   virtual Register name()     { return registers_[1]; }
   Register value()    { return registers_[2]; }
   virtual Register scratch1() { return registers_[3]; }
   virtual Register scratch2() { return registers_[4]; }
   virtual Register scratch3() { return registers_[5]; }
   StrictModeFlag strict_mode() { return strict_mode_; }
   virtual Code::ExtraICState extra_state() { return strict_mode_; }
 
+ protected:
+  static Register* registers();
+
  private:
   StrictModeFlag strict_mode_;
+  friend class BaseLoadStoreStubCompiler;
 };
 
 
-class StoreStubCompiler: public BaseStoreStubCompiler {
- public:
-  StoreStubCompiler(Isolate* isolate, StrictModeFlag strict_mode)
-      : BaseStoreStubCompiler(isolate, strict_mode, registers()) { }
-
-
-  Handle<Code> CompileStoreCallback(Handle<JSObject> object,
-                                    Handle<JSObject> holder,
-                                    Handle<Name> name,
-                                    Handle<ExecutableAccessorInfo> callback);
-
-  Handle<Code> CompileStoreCallback(Handle<JSObject> object,
-                                    Handle<JSObject> holder,
-                                    Handle<Name> name,
-                                    const CallOptimization& call_optimization);
-
-  static void GenerateStoreViaSetter(MacroAssembler* masm,
-                                     Handle<JSFunction> setter);
-
-  Handle<Code> CompileStoreViaSetter(Handle<JSObject> object,
-                                     Handle<JSObject> holder,
-                                     Handle<Name> name,
-                                     Handle<JSFunction> setter);
-
-  Handle<Code> CompileStoreInterceptor(Handle<JSObject> object,
-                                       Handle<Name> name);
-
- private:
-  static Register* registers();
-  virtual Code::Kind kind() { return Code::STORE_IC; }
-  virtual Logger::LogEventsAndTags log_kind(Handle<Code> code) {
-    if (!code->is_inline_cache_stub()) return Logger::STUB_TAG;
-    return code->ic_state() == MONOMORPHIC
-        ? Logger::STORE_IC_TAG : Logger::STORE_POLYMORPHIC_IC_TAG;
-  }
-  virtual void JitEvent(Handle<Name> name, Handle<Code> code);
-};
-
-
-class KeyedStoreStubCompiler: public BaseStoreStubCompiler {
+class KeyedStoreStubCompiler: public StoreStubCompiler {
  public:
   KeyedStoreStubCompiler(Isolate* isolate,
                          StrictModeFlag strict_mode,
                          KeyedAccessStoreMode store_mode)
-      : BaseStoreStubCompiler(isolate, strict_mode, registers()),
+      : StoreStubCompiler(isolate, strict_mode, Code::KEYED_STORE_IC),
         store_mode_(store_mode) { }
 
   Handle<Code> CompileStoreElement(Handle<Map> receiver_map);
 
   Handle<Code> CompileStorePolymorphic(MapHandleList* receiver_maps,
                                        CodeHandleList* handler_stubs,
                                        MapHandleList* transitioned_maps);
 
   Handle<Code> CompileStoreElementPolymorphic(MapHandleList* receiver_maps);
 
   static void GenerateStoreDictionaryElement(MacroAssembler* masm);
 
  protected:
   virtual Code::ExtraICState extra_state() {
     return Code::ComputeExtraICState(store_mode_, strict_mode());
   }
+  static Register* registers();
 
  private:
   Register transition_map() {
     return registers()[3];
   }
 
-  static Register* registers();
-  virtual Code::Kind kind() { return Code::KEYED_STORE_IC; }
-  virtual Logger::LogEventsAndTags log_kind(Handle<Code> code) {
-    if (!code->is_inline_cache_stub()) return Logger::STUB_TAG;
-    return code->ic_state() == MONOMORPHIC
-        ? Logger::KEYED_STORE_IC_TAG : Logger::KEYED_STORE_POLYMORPHIC_IC_TAG;
-  }
-  virtual void JitEvent(Handle<Name> name, Handle<Code> code);
   virtual void GenerateNameCheck(Handle<Name> name,
                                  Register name_reg,
                                  Label* miss);
   KeyedAccessStoreMode store_mode_;
+  friend class BaseLoadStoreStubCompiler;
 };
 
 
 // Subset of FUNCTIONS_WITH_ID_LIST with custom constant/global call
 // IC stubs.
 #define CUSTOM_CALL_IC_GENERATORS(V)            \
   V(ArrayPush)                                  \
   V(ArrayPop)                                   \
   V(StringCharCodeAt)                           \
   V(StringCharAt)                               \
@@ skipping 154 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_