[Mlir-commits] [mlir] [mlir][CallGraph] Add edges for callable symbol references in CallGraph (PR #116177)

[Markus Böck]

https://github.com/zero9178 commented:

Did a first pass through the `CallGraph` code and left some conceptual questions.

I don't have a strong opinion whether it makes sense to have "Ref" edges from a callable containing the use or whether we should follow LLVM and connect the external caller node to the callable if there are uses of the symbol. 

I did not check the inliner changes yet and would ideally leave this to other more experienced reviewers in that code, but it seems nice to see so much code being removed!

https://github.com/llvm/llvm-project/pull/116177