[llvm] [SimplifyCFG] Add command-line option to disable the pass (PR #130965)

[Nikita Popov via llvm-commits]

nikic wrote:

> The option is useful for some of the experiments we're doing. I don't see any harm in having such option and the ability to disable the pass.

Could you please provide some more details what this is useful for?

https://github.com/llvm/llvm-project/pull/130965