pytorch

c51abf8f - Make `binary_cross_entropy` differentiable wrt `target` (#59447)

Make `binary_cross_entropy` differentiable wrt `target` (#59447) Summary: As per title. Resolves https://github.com/pytorch/pytorch/issues/56683. `gradgradcheck` will fail once `target.requires_grad() == True` because of the limitations of the current double backward implementation. Pull Request resolved: https://github.com/pytorch/pytorch/pull/59447 Reviewed By: agolynski Differential Revision: D28910140 Pulled By: albanD fbshipit-source-id: 20934880eb4d22bec34446a6d1be0a38ef95edc7