[llvm] [GVN] Combine visited and worklist in PropagateEquality (PR #216061)

[Antonio Frighetto via llvm-commits]

antoniofrighetto wrote:

Right, I think new code scans the SetVector front-to-back, which switches the traversal from depth-first to BFS instead. Didn't feel strongly either when approved, though I couldn't see anything harmful. As it doesn't seem to provide much practical benefit, I agree we could probably drop the patch.

https://github.com/llvm/llvm-project/pull/216061