Changing string length field type from int to SMI. It will make it be a regu...

src/objects-inl.h

 // Copyright 2006-2008 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 1633 matching lines @@
 template <typename Shape, typename Key>
 HashTable<Shape, Key>* HashTable<Shape, Key>::cast(Object* obj) {
   ASSERT(obj->IsHashTable());
   return reinterpret_cast<HashTable*>(obj);
 }
 
 
 INT_ACCESSORS(Array, length, kLengthOffset)
 
 
-INT_ACCESSORS(String, length, kLengthOffset)
+SMI_ACCESSORS(String, length, kLengthOffset)
 
 
 uint32_t String::hash_field() {
   return READ_UINT32_FIELD(this, kHashFieldOffset);
 }
 
 
 void String::set_hash_field(uint32_t value) {
   WRITE_UINT32_FIELD(this, kHashFieldOffset, value);
 }
@@ skipping 101 matching lines @@
 }
 
 
 void SeqTwoByteString::SeqTwoByteStringSet(int index, uint16_t value) {
   ASSERT(index >= 0 && index < length());
   WRITE_SHORT_FIELD(this, kHeaderSize + index * kShortSize, value);
 }
 
 
 int SeqTwoByteString::SeqTwoByteStringSize(InstanceType instance_type) {
-  uint32_t length = READ_INT_FIELD(this, kLengthOffset);
-  return SizeFor(length);
+  return SizeFor(length());
 }
 
 
 int SeqAsciiString::SeqAsciiStringSize(InstanceType instance_type) {
-  uint32_t length = READ_INT_FIELD(this, kLengthOffset);
-  return SizeFor(length);
+  return SizeFor(length());
 }
 
 
 String* ConsString::first() {
   return String::cast(READ_FIELD(this, kFirstOffset));
 }
 
 
 Object* ConsString::unchecked_first() {
   return READ_FIELD(this, kFirstOffset);
@@ skipping 1328 matching lines @@
 #undef WRITE_INT_FIELD
 #undef READ_SHORT_FIELD
 #undef WRITE_SHORT_FIELD
 #undef READ_BYTE_FIELD
 #undef WRITE_BYTE_FIELD
 
 
 } }  // namespace v8::internal
 
 #endif  // V8_OBJECTS_INL_H_