pytorch

5e222d08 - Revert "Revert D32498572: allow external backend codegen to be used without autograd kernels" (#69949)

Revert "Revert D32498572: allow external backend codegen to be used without autograd kernels" (#69949) Summary: Pull Request resolved: https://github.com/pytorch/pytorch/pull/69949 This reverts commit 33363cea64fd4be16975c32cf57e9eb123af371d. Test Plan: Imported from OSS Reviewed By: H-Huang Differential Revision: D33113544 Pulled By: bdhirsh fbshipit-source-id: e219f10d52776498c9ad273e97bca3e3406cf702