pytorch

95833a49 - [TensorExpr] Pull changes from bertmaher/pytorch_fusion. (#34842)

[TensorExpr] Pull changes from bertmaher/pytorch_fusion. (#34842) Summary: Pull Request resolved: https://github.com/pytorch/pytorch/pull/34842 This PR (hopefully the last one of such kind) is merging changes from a side branch where tensor expessions based fuser work has been done so far. This PR is is a squashed version of changes in the side branch, which is available here: https://github.com/bertmaher/pytorch Differential Revision: D20478208 Test Plan: Imported from OSS Pulled By: ZolotukhinM fbshipit-source-id: 21556e009f1fd88099944732edba72ac40e9b9c0