[Mlir-commits] [mlir] [mlir][amdgpu] Remove redundant barriers (PR #175436)

[Ivan Butygin]

Hardcode84 wrote:

+1 to ditching `amdgpu.lds_barrier` for `gpu.barrier` in long term.

> Now, as to this PR ... do we have other examples of (caninicalizarion) patterns peeking at the next IR node? That feels suspicious from a pattern-matching perspective

This is direct copypaste from `gpu.barrier` canonicalization which we had for a while.

https://github.com/llvm/llvm-project/pull/175436