Add MEGAMORPHIC state support for KeyedStoreIC

src/ic/ic.h

 // Copyright 2012 the V8 project authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #ifndef V8_IC_H_
 #define V8_IC_H_
 
 #include "src/ic/ic-state.h"
 #include "src/macro-assembler.h"
 
@@ skipping 205 matching lines @@
     for (int i = 0; i < target_maps_.length(); i++) {
       list->Add(MapToType<HeapType>(target_maps_.at(i), isolate_));
     }
   }
 
   Map* FirstTargetMap() {
     FindTargetMaps();
     return target_maps_.length() > 0 ? *target_maps_.at(0) : NULL;
   }
 
- protected:
   inline void UpdateTarget();
 
  private:
   inline Code* raw_target() const;
   inline ConstantPoolArray* constant_pool() const;
   inline ConstantPoolArray* raw_constant_pool() const;
 
   void FindTargetMaps() {
     if (target_maps_set_) return;
     target_maps_set_ = true;
@@ skipping 282 matching lines @@
   friend class IC;
 };
 
 
 enum KeyedStoreCheckMap { kDontCheckMap, kCheckMap };
 
 
 enum KeyedStoreIncrementLength { kDontIncrementLength, kIncrementLength };
 
 
+enum KeyedStoreStubCacheRequirement {
+  kCallRuntimeOnMissingHandler,
+  kMissOnMissingHandler
+};
+
+
 class KeyedStoreIC : public StoreIC {
  public:
   // ExtraICState bits (building on IC)
   // ExtraICState bits
   class ExtraICStateKeyedAccessStoreMode
       : public BitField<KeyedAccessStoreMode, 2, 4> {};  // NOLINT
 
   static ExtraICState ComputeExtraICState(StrictMode flag,
                                           KeyedAccessStoreMode mode) {
     return StrictModeState::encode(flag) |
@@ skipping 13 matching lines @@
                                             Handle<Object> name,
                                             Handle<Object> value);
 
   // Code generators for stub routines.  Only called once at startup.
   static void GenerateInitialize(MacroAssembler* masm) { GenerateMiss(masm); }
   static void GeneratePreMonomorphic(MacroAssembler* masm) {
     GenerateMiss(masm);
   }
   static void GenerateMiss(MacroAssembler* masm);
   static void GenerateSlow(MacroAssembler* masm);
-  static void GenerateGeneric(MacroAssembler* masm, StrictMode strict_mode);
+  static void GenerateGeneric(
+      MacroAssembler* masm, StrictMode strict_mode,
+      KeyedStoreStubCacheRequirement handler_requirement);
   static void GenerateSloppyArguments(MacroAssembler* masm);
 
  protected:
   virtual Handle<Code> pre_monomorphic_stub() const {
     return pre_monomorphic_stub(isolate(), strict_mode());
   }
   static Handle<Code> pre_monomorphic_stub(Isolate* isolate,
                                            StrictMode strict_mode) {
     if (strict_mode == STRICT) {
       return isolate->builtins()->KeyedStoreIC_PreMonomorphic_Strict();
@@ skipping 115 matching lines @@
 
 // Support functions for interceptor handlers.
 DECLARE_RUNTIME_FUNCTION(LoadPropertyWithInterceptorOnly);
 DECLARE_RUNTIME_FUNCTION(LoadPropertyWithInterceptor);
 DECLARE_RUNTIME_FUNCTION(LoadElementWithInterceptor);
 DECLARE_RUNTIME_FUNCTION(StorePropertyWithInterceptor);
 }
 }  // namespace v8::internal
 
 #endif  // V8_IC_H_