LayoutDescriptorHelper is now able to calculate the length of contiguous regions of tagged/non-tagg…

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 7413 matching lines @@
 
 
 static inline void IterateBodyUsingLayoutDescriptor(HeapObject* object,
                                                     int start_offset,
                                                     int end_offset,
                                                     ObjectVisitor* v) {
   DCHECK(FLAG_unbox_double_fields);
   DCHECK(IsAligned(start_offset, kPointerSize) &&
          IsAligned(end_offset, kPointerSize));
 
-  InobjectPropertiesHelper helper(object->map());
+  LayoutDescriptorHelper helper(object->map());
   DCHECK(!helper.all_fields_tagged());
 
   for (int offset = start_offset; offset < end_offset; offset += kPointerSize) {
     // Visit all tagged fields.
     if (helper.IsTagged(offset)) {
       v->VisitPointer(HeapObject::RawField(object, offset));
     }
   }
 }
 
@@ skipping 83 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_