[llvm] [LoopInterchange] Add an option to prioritize vectorization (PR #131988)

[Michael Kruse via llvm-commits]

https://github.com/Meinersbur commented:

Not requiring for this review, but have you considered exposing the generality of the implementation to the user? Something like `-loop-interchange-priorities=cache,instcost,vectorization` (One may also intentionally remove on of them)?

https://github.com/llvm/llvm-project/pull/131988