[Mlir-commits] [mlir] [mlir][tensor] Fold pack and unpack of empty input tensor (PR #92247)

[Adam Siemieniuk]

adam-smnk wrote:

Thanks for the feedback. I'll move it to the folder patterns.

> Also packs have padding semantics. Those need to be accounted for. I think if there is padding you can't do this transformation

At first I treated packing on empty as mostly UB but I suppose you could materialize it as a valid initialization of a buffer.
I'll make the transform more conservative.

https://github.com/llvm/llvm-project/pull/92247