[Pytorch Edge] Generic Build Features for Selective Build (#67817)
Summary:
Pull Request resolved: https://github.com/pytorch/pytorch/pull/67817
Implementation of build features as a useable feature. Includes tracing support and selectivity support. Follow up of Dhruv's prototype in D30076214.
The general idea is to allow selectivity of arbitrary sections of the codebase through the 2 apis,
BUILD_FEATURE_REQUIRED(NAME), and
BUILD_FEATURE_AVAILABLE(NAME)
References
PyTorch Edge Team Workplace group post link: https://fb.workplace.com/groups/pytorch.edge.team/posts/905584476662959/
Quip talking about some early ideas related to build features: https://fb.quip.com/iur3ApU9q29v
Google Doc about most recent discussion and details: https://docs.google.com/document/d/1533zuN_9pwpQBa4RhtstUjT5B7guowblqJz35QYWPE0/edit
Will remove the copy kernel example after. Its just here as an example.
ghstack-source-id: 142850218
Test Plan: CI, dummy traced a model, and played around with its unit test if i removed the traced value from the yaml
Reviewed By: dhruvbird
Differential Revision: D32151856
fbshipit-source-id: 33764c1f6902a025e53807b784792a83c8385984
