Replace OS::MemCopy with OS::MemMove (just as fast but more flexible).

src/api.cc

 // 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 1668 matching lines @@
   }
 
   // Copy the data to ensure it is properly aligned.
   int deserialized_data_length = length / sizeof(unsigned);
   // If aligned, don't create a copy of the data.
   if (reinterpret_cast<intptr_t>(data) % sizeof(unsigned) == 0) {
     return new i::ScriptDataImpl(data, length);
   }
   // Copy the data to align it.
   unsigned* deserialized_data = i::NewArray<unsigned>(deserialized_data_length);
-  i::OS::MemCopy(deserialized_data, data, length);
+  i::CopyBytes(reinterpret_cast<char*>(deserialized_data),
+               data, static_cast<size_t>(length));
 
   return new i::ScriptDataImpl(
       i::Vector<unsigned>(deserialized_data, deserialized_data_length));
 }
 
 
 // --- S c r i p t ---
 
 
 Local<Script> Script::New(v8::Handle<String> source,
@@ skipping 1543 matching lines @@
 
       int prefix_len = i::StrLength(prefix);
       int str_len = str->Length();
       int postfix_len = i::StrLength(postfix);
 
       int buf_len = prefix_len + str_len + postfix_len;
       i::ScopedVector<char> buf(buf_len);
 
       // Write prefix.
       char* ptr = buf.start();
-      memcpy(ptr, prefix, prefix_len * v8::internal::kCharSize);
+      i::OS::MemCopy(ptr, prefix, prefix_len * v8::internal::kCharSize);
       ptr += prefix_len;
 
       // Write real content.
       str->WriteAscii(ptr, 0, str_len);
       ptr += str_len;
 
       // Write postfix.
-      memcpy(ptr, postfix, postfix_len * v8::internal::kCharSize);
+      i::OS::MemCopy(ptr, postfix, postfix_len * v8::internal::kCharSize);
 
       // Copy the buffer into a heap-allocated string and return it.
       Local<String> result = v8::String::New(buf.start(), buf_len);
       return result;
     }
   }
 }
 
 
 Local<Value> v8::Object::GetConstructor() {
@@ skipping 3960 matching lines @@
 
 void HandleScopeImplementer::FreeThreadResources() {
   Free();
 }
 
 
 char* HandleScopeImplementer::ArchiveThread(char* storage) {
   v8::ImplementationUtilities::HandleScopeData* current =
       isolate_->handle_scope_data();
   handle_scope_data_ = *current;
-  memcpy(storage, this, sizeof(*this));
+  OS::MemCopy(storage, this, sizeof(*this));
 
   ResetAfterArchive();
   current->Initialize();
 
   return storage + ArchiveSpacePerThread();
 }
 
 
 int HandleScopeImplementer::ArchiveSpacePerThread() {
   return sizeof(HandleScopeImplementer);
 }
 
 
 char* HandleScopeImplementer::RestoreThread(char* storage) {
-  memcpy(this, storage, sizeof(*this));
+  OS::MemCopy(this, storage, sizeof(*this));
   *isolate_->handle_scope_data() = handle_scope_data_;
   return storage + ArchiveSpacePerThread();
 }
 
 
 void HandleScopeImplementer::IterateThis(ObjectVisitor* v) {
 #ifdef DEBUG
   bool found_block_before_deferred = false;
 #endif
   // Iterate over all handles in the blocks except for the last.
@@ skipping 98 matching lines @@
 
   v->VisitPointers(blocks_.first(), first_block_limit_);
 
   for (int i = 1; i < blocks_.length(); i++) {
     v->VisitPointers(blocks_[i], &blocks_[i][kHandleBlockSize]);
   }
 }
 
 
 } }  // namespace v8::internal