[inductor] Pattern matching engine (copy) (#93291)
This is an exact duplicate of https://github.com/pytorch/pytorch/pull/90739
The fbcode workflow for landing that diff seems buggy. The github-export-checks task is failing with credentials errors. Plan to try to land it using GH1.
Pull Request resolved: https://github.com/pytorch/pytorch/pull/93291
Approved by: https://github.com/desertfire
