[pytorch][PR] Add hash and int128 utils for Lazy Tensor Core" (#66181)
Summary:
These utils are prerequisites for Lazy Node base class.
- set up new torch/csrc/lazy, test/cpp/lazy dirs
- add source files to build_variables.bzl in new lazy_core_sources var
- create new test_lazy binary
Fixes https://github.com/pytorch/pytorch/issues/65636
Pull Request resolved: https://github.com/pytorch/pytorch/pull/66181
Original commit changeset: 3d0d5377d71e
Test Plan:
Run PyTorch XLA corresponding PR in XLA CI:
https://github.com/pytorch/xla/pull/3148/files
Reviewed By: suo
Differential Revision: D31416438
fbshipit-source-id: 58a6a49c5bc30134bc6bae2e42778f359b9a8f40
