pytorch

e0a2b49f - [SPMD] Introduce prerequisites to graph_optimization_pass (#99970)

[SPMD] Introduce prerequisites to graph_optimization_pass (#99970) Some optimizations require prerequisite passes. It is hard to debug why a optimization pass because of the prerequisites condition does not match. Adding this check makes it easier to discover the error. Differential Revision: [D45255377](https://our.internmc.facebook.com/intern/diff/D45255377/) Pull Request resolved: https://github.com/pytorch/pytorch/pull/99970 Approved by: https://github.com/lessw2020