[llvm-branch-commits] [llvm] Add --fn flag to llvm-lit to inject select-function pass into opt pipelines (PR #199391)

[Aiden Grossman via llvm-branch-commits]

https://github.com/boomanaiden154 commented:

> I don't like this change: it assumes that lit is only used in LLVM contexts, which is incorrect (lit can be used independently of LLVM). The options to lit should be generally applicable. If a specific feature is needed for some small subset of testing within LLVM, it would make more sense for that to be something in the local config or similar.

Agreed. I also commented in the base PR that I'm not sure this is very different than `llvm-extract` with a bit of syntactic sugar around it that I don't think buys us much for the additional code.

https://github.com/llvm/llvm-project/pull/199391