pytorch

99b064fa - [jit] shape propagation for prepack (#63585)

[jit] shape propagation for prepack (#63585) Summary: Pull Request resolved: https://github.com/pytorch/pytorch/pull/63585 Test Plan: Imported from OSS Reviewed By: malfet Differential Revision: D30428905 Pulled By: IvanKobzarev fbshipit-source-id: c18f6605a69b2e000bdf14a23e637c5a1c2ec64c