Initializing mask as a tensor of ints (not long) (#875)
Initializing mask as a tensor of ints (not long) (#875)

Summary:
Since mask really is a tensor of ints, this change should be mathematically
equivalent to the base.

On the other hand, this has performance implications for xla, hence the
pull request.
Pull Request resolved: https://github.com/pytorch/fairseq/pull/875

Differential Revision: D16232877

Pulled By: myleott

fbshipit-source-id: e63175ee0016dcf0dfe10e2fd22570b8bbfbde84

pytorch/fairseq,pytorch/fairseq,pytorch/fairseq