Reduce SharedFunctionInfo size.

src/objects-inl.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.
 //
 // Review notes:
 //
 // - The use of macros in these inline functions may seem superfluous
 // but it is absolutely needed to make sure gcc generates optimal
 // code. gcc is not happy when attempting to inline too deep.
 //
@@ skipping 5458 matching lines @@
   return code() != builtins->builtin(Builtins::kCompileLazy);
 }
 
 
 bool SharedFunctionInfo::is_simple_parameter_list() {
   return scope_info()->IsSimpleParameterList();
 }
 
 
 bool SharedFunctionInfo::HasDebugInfo() {
-  bool has_debug_info = debug_info()->IsStruct();
+  bool has_debug_info = !IsApiFunction() && debug_info()->IsStruct();

[Jakob Kummerow, 2015/07/22 12:24:02]

I can haz DCHECK(!IsApiFunction()) inside debug_info()? That probably requires
adding checks at other call sites, but would let me sleep better.

   DCHECK(!has_debug_info || HasDebugCode());
   return has_debug_info;
 }
 
 
 DebugInfo* SharedFunctionInfo::GetDebugInfo() {
   DCHECK(HasDebugInfo());
   return DebugInfo::cast(debug_info());
 }
 
@@ skipping 93 matching lines @@
   // enough power of 2.
   if (tries >= 16 && (((tries - 1) & tries) == 0)) {
     set_optimization_disabled(false);
     set_opt_count(0);
     set_deopt_count(0);
   }
 }
 
 
 bool SharedFunctionInfo::IsSubjectToDebugging() {
+  if (IsApiFunction()) return false;
   Object* script_obj = script();
   if (script_obj->IsUndefined()) return false;
   Script* script = Script::cast(script_obj);
   Script::Type type = static_cast<Script::Type>(script->type()->value());
   return type == Script::TYPE_NORMAL;
 }
 
 
 bool JSFunction::IsBuiltin() {
   return context()->global_object()->IsJSBuiltinsObject();
@@ skipping 1710 matching lines @@
 #undef READ_SHORT_FIELD
 #undef WRITE_SHORT_FIELD
 #undef READ_BYTE_FIELD
 #undef WRITE_BYTE_FIELD
 #undef NOBARRIER_READ_BYTE_FIELD
 #undef NOBARRIER_WRITE_BYTE_FIELD
 
 } }  // namespace v8::internal
 
 #endif  // V8_OBJECTS_INL_H_