[TensorExpr] Move 'initializer' field from 'Tensor' to 'Buf'. (#50993)
Summary:
Pull Request resolved: https://github.com/pytorch/pytorch/pull/50993
This is the first step to make 'Tensor` a thin wrapper over 'Buf' and
'Stmt', which will be finished in subsequent PRs. This change also
allows to remove 'buf_initializers_' from 'LoopNest', making it "less
stateful".
Test Plan: Imported from OSS
Reviewed By: bertmaher
Differential Revision: D26038224
Pulled By: ZolotukhinM
fbshipit-source-id: f418816e54c62f291fa45812901487394e9b95b5
Author
Mikhail Zolotukhin
