[TensorExpr] Add a boilerplate pass for future TensorExpr fusion pass. (#33464)
Summary:
Pull Request resolved: https://github.com/pytorch/pytorch/pull/33464
I added a python-exposed knob to register this pass in custom passes pipeline. If the knob is not used, the pass is not registered and thus not run at all.
Differential Revision: D19958217
Test Plan: Imported from OSS
Pulled By: ZolotukhinM
fbshipit-source-id: fecdd98567fcda069fbdf8995c796899a3dbfa5c
Author
Mikhail Zolotukhin
