X64: Enable more of LoadIC, disable individual stub types.

src/ic.cc

 // Copyright 2006-2009 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 591 matching lines @@
     if (index < 0) {
       // Index is an offset from the end of the object.
       int offset = map->instance_size() + (index * kPointerSize);
       if (PatchInlinedLoad(address(), map, offset)) {
         set_target(megamorphic_stub());
         return lookup.holder()->FastPropertyAt(lookup.GetFieldIndex());
       }
     }
   }
 
-  // TODO(X64): Enable inline cache for load.
-  #ifndef V8_TARGET_ARCH_X64
   // Update inline cache and stub cache.
   if (FLAG_use_ic && lookup.IsLoaded()) {
     UpdateCaches(&lookup, state, object, name);
   }
-  #endif
 
   PropertyAttributes attr;
   if (lookup.IsValid() && lookup.type() == INTERCEPTOR) {
     // Get the property.
     Object* result = object->GetProperty(*object, &lookup, *name, &attr);
     if (result->IsFailure()) return result;
     // If the property is not present, check if we need to throw an
     // exception.
     if (attr == ABSENT && is_contextual()) {
       return ReferenceError("not_defined", name);
@@ skipping 748 matching lines @@
 #undef ADDR
 };
 
 
 Address IC::AddressFromUtilityId(IC::UtilityId id) {
   return IC_utilities[id];
 }
 
 
 } }  // namespace v8::internal