[TensorExpr] Pull changes to core classes for representing expressions and statements from the side branch. (#34224)
Summary:
Pull Request resolved: https://github.com/pytorch/pytorch/pull/34224
Our development has been happening on a side branch `pytorch_fusion` in
`bertmaher/pytorch` fork. This PR moves changes to the core classes
representing expressions and transformations on them.
At this moment, the tensor expressions are only used in tests.
Subsequent PRs add LLVM and CUDA codegen for tensor expressions and
implement fuser on top of these.
This PR is huge as it is a squashed version of changes in the side
branch. It is not practical to pull changes one by one from the branch,
so here is the squashed version. If you're interested in seeing the
history of changes, please refer to https://github.com/bertmaher/pytorch
Differential Revision: D20251835
Test Plan: Imported from OSS
Pulled By: ZolotukhinM
fbshipit-source-id: 1a871acc09cf3c6f7fb4af40d408cdbb82dc7dab
Author
Mikhail Zolotukhin
