[Pytorch Mobile] Optimize Non Forward for Mobile (#53314)
Summary:
Pull Request resolved: https://github.com/pytorch/pytorch/pull/53314
Introduction of api for optimizing non forward functions for mobile. As of this diff, all functions that you say to optimize will be preserved, and those functions will be run through canonical optimization. The intention is to stack each further optimization onto separate diffs since they touch multiple files, and it seems like it'd be a nightmare to review.
ghstack-source-id: 123909414
Test Plan:
torch.utils.mobile_optimizer.optimize_for_mobile(net, methods_to_optimize=["forward", "foo"]) runs fine
torch.utils.mobile_optimizer.optimize_for_mobile(net, methods_to_optimize={"foo"}) optimizes just foo if the model doesnt define forward otherwise optimizes foo and forward
torch.utils.mobile_optimizer.optimize_for_mobile(net, methods_to_optimize=["forward"]) runs fine
torch.utils.mobile_optimizer.optimize_for_mobile(net) runs fine if the model defines forward, Throws otherwise
Reviewed By: kimishpatel
Differential Revision: D26618689
fbshipit-source-id: 5bff1fb3f3f6085c4a649a8128af9c10f0fa9400
