Reland: [TensorExpr] Add methods for inspecting generated code in `TensorExprKernel`. (#57560)
Summary:
Pull Request resolved: https://github.com/pytorch/pytorch/pull/57560
The new methods allow to peak into bufferArgs which describe parameters
that codegen expects. This description includes info whether a given
parameter is a scalar var or a buffer and in case it's a buffer allows
to get the corresponding `Buf*` pointer from which we could get the
expected sizes.
Relanding #57074 which was reverted because I forgot to guard a new
test with `ifdef LLVM`.
Test Plan: Imported from OSS
Reviewed By: bertmaher
Differential Revision: D28199048
Pulled By: ZolotukhinM
fbshipit-source-id: 636e838e7e242a3c63e97ec453b8fae9b6380231
Author
Mikhail Zolotukhin
