Adding a type vector to replace type cells.

src/compiler.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 85 matching lines @@
   }
   void MarkAsGlobal() {
     ASSERT(!is_lazy());
     flags_ |= IsGlobal::encode(true);
   }
   void set_parameter_count(int parameter_count) {
     ASSERT(IsStub());
     parameter_count_ = parameter_count;
   }
 
+  void ProcessFeedbackSlots();
+  int slot_count() { return function()->slot_count(); }
+
   void set_this_has_uses(bool has_no_uses) {
     this_has_uses_ = has_no_uses;
   }
   bool this_has_uses() {
     return this_has_uses_;
   }
   void SetLanguageMode(LanguageMode language_mode) {
     ASSERT(this->language_mode() == CLASSIC_MODE ||
            this->language_mode() == language_mode ||
            language_mode == EXTENDED_MODE);
@@ skipping 55 matching lines @@
     return ParseRestricitonField::decode(flags_);
   }
 
   void SetFunction(FunctionLiteral* literal) {
     ASSERT(function_ == NULL);
     function_ = literal;
   }
   void SetScope(Scope* scope) {
     ASSERT(scope_ == NULL);
     scope_ = scope;
+    ProcessFeedbackSlots();

[mvstanton, 2014/01/30 15:13:41]

pull this out.

[mvstanton, 2014/01/30 17:37:41]

Done.

   }
   void SetGlobalScope(Scope* global_scope) {
     ASSERT(global_scope_ == NULL);
     global_scope_ = global_scope;
   }
   void SetCode(Handle<Code> code) { code_ = code; }
   void SetExtension(v8::Extension* extension) {
     ASSERT(!is_lazy());
     extension_ = extension;
   }
@@ skipping 485 matching lines @@
   unsigned info_zone_start_allocation_size_;
   ElapsedTimer timer_;
 
   DISALLOW_COPY_AND_ASSIGN(CompilationPhase);
 };
 
 
 } }  // namespace v8::internal
 
 #endif  // V8_COMPILER_H_