Zonify types in compiler frontend

src/type-info.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 27 matching lines @@
 
 // Forward declarations.
 class ICStub;
 class SmallMapList;
 
 
 class TypeFeedbackOracle: public ZoneObject {
  public:
   TypeFeedbackOracle(Handle<Code> code,
                      Handle<Context> native_context,
-                     Isolate* isolate,
                      Zone* zone);
 
   bool LoadIsUninitialized(TypeFeedbackId id);
   bool LoadIsPreMonomorphic(TypeFeedbackId id);
   bool StoreIsUninitialized(TypeFeedbackId id);
   bool StoreIsPreMonomorphic(TypeFeedbackId id);
   bool StoreIsKeyedPolymorphic(TypeFeedbackId id);
   bool CallIsMonomorphic(TypeFeedbackId aid);
   bool KeyedArrayCallIsHoley(TypeFeedbackId id);
   bool CallNewIsMonomorphic(TypeFeedbackId id);
@@ skipping 42 matching lines @@
   bool LoadIsBuiltin(TypeFeedbackId id, Builtins::Name builtin_id);
   bool LoadIsStub(TypeFeedbackId id, ICStub* stub);
 
   // TODO(1571) We can't use ToBooleanStub::Types as the return value because
   // of various cycles in our headers. Death to tons of implementations in
   // headers!! :-P
   byte ToBooleanTypes(TypeFeedbackId id);
 
   // Get type information for arithmetic operations and compares.
   void BinaryType(TypeFeedbackId id,
-                  Handle<Type>* left,
-                  Handle<Type>* right,
-                  Handle<Type>* result,
+                  Type** left,
+                  Type** right,
+                  Type** result,
                   Maybe<int>* fixed_right_arg,
                   Token::Value operation);
 
   void CompareType(TypeFeedbackId id,
-                   Handle<Type>* left,
-                   Handle<Type>* right,
-                   Handle<Type>* combined);
+                   Type** left,
+                   Type** right,
+                   Type** combined);
 
-  Handle<Type> CountType(TypeFeedbackId id);
+  Type* CountType(TypeFeedbackId id);
 
   Zone* zone() const { return zone_; }
-  Isolate* isolate() const { return isolate_; }
+  Isolate* isolate() const { return zone_->isolate(); }
 
  private:
   void CollectReceiverTypes(TypeFeedbackId id,
                             Handle<String> name,
                             Code::Flags flags,
                             SmallMapList* types);
 
   void SetInfo(TypeFeedbackId id, Object* target);
 
   void BuildDictionary(Handle<Code> code);
   void GetRelocInfos(Handle<Code> code, ZoneList<RelocInfo>* infos);
   void CreateDictionary(Handle<Code> code, ZoneList<RelocInfo>* infos);
   void RelocateRelocInfos(ZoneList<RelocInfo>* infos,
                           byte* old_start,
                           byte* new_start);
   void ProcessRelocInfos(ZoneList<RelocInfo>* infos);
   void ProcessTypeFeedbackCells(Handle<Code> code);
 
   // Returns an element from the backing store. Returns undefined if
   // there is no information.
   Handle<Object> GetInfo(TypeFeedbackId id);
 
   // Return the cell that contains type feedback.
   Handle<Cell> GetInfoCell(TypeFeedbackId id);
 
  private:
   Handle<Context> native_context_;
-  Isolate* isolate_;
   Zone* zone_;
   Handle<UnseededNumberDictionary> dictionary_;
 
   DISALLOW_COPY_AND_ASSIGN(TypeFeedbackOracle);
 };
 
 } }  // namespace v8::internal
 
 #endif  // V8_TYPE_INFO_H_