[Mlir-commits] [mlir] [mlir][gpu] Eliminate redundant gpu.barrier ops (PR #71575)

[Oleksandr Alex Zinenko]

ftynse wrote:

In case you missed it, we have added a more advanced barrier elimination in https://github.com/llvm/llvm-project/commit/9ab34689b08ee66f0868d38456fccc8b80d1b656. It does some relatively expensive computations including a localized alias analysis, so it absolutely shouldn't run as part of canonicalization. Having a simple cleanup as part of canonicalization looks good to me.

https://github.com/llvm/llvm-project/pull/71575