[llvm] [SimplifyCFG] Do not run `simplifySwitchOfPowersOfTwo` in early invocations (PR #145477)

[Nikita Popov via llvm-commits]

https://github.com/nikic commented:

Can you please add a PhaseOrdering test that demonstrates why this is useful?

Also, can we reasonably bind this to one of the existing switch options (like ConvertSwitchToLookupTable)? We have sooo many options already.

https://github.com/llvm/llvm-project/pull/145477