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

[Ryotaro Kasuga via llvm-commits]

https://github.com/kasuga-fj approved this pull request.

Personally, I’d prefer to avoid adding new features to an already broken pass, but the code itself LGTM.

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