Is there any reason why s_copy_ is NOT profiling?

Would you suggest me the reason why s_copy_ is NOT profiling?
Even in current code, RecordFunction is not exist for s_copy_ https://github.com/pytorch/pytorch/blob/master/torch/csrc/autograd/VariableTypeManual.cpp#L246

I think it (s_copy_) is very important method for profiling.