[llvm] [DependenceAnalysis] Extending SIV to handle separate loops (PR #128782)

[Michael Kruse via llvm-commits]

https://github.com/Meinersbur commented:

There are several unrelated formatting changes in there. If it is easer, we can commit a NFC clang-format change so you don't have to worry about clang-format introducing changes anymore.

With not seeing the loop fusion code, I meant to open a seaparate commit that modifies loop fusion, so this PR does mix two concerns. See https://llvm.org/docs/GitHub.html#stacked-pull-requests.

https://github.com/llvm/llvm-project/pull/128782