[llvm] [SimplifyCFG] Convert switch to cmp/select sequence (PR #82795)

[Nikita Popov via llvm-commits]

nikic wrote:

@tsymalla If this is targeted at GPUs, maybe the SpeculativeExecution pass would be a better fit? That's the one that does the kind of aggressive speculation that's only really profitable for GPU targets. Currently it only handles branches, but it could probably be generalized to handle switches as well.

https://github.com/llvm/llvm-project/pull/82795