[llvm] [Transforms][Utils] Add LoopSplitUtils for iteration-space loop splitting (PR #205995)

[Ashutosh Nema via llvm-commits]

https://github.com/nema-ashutosh commented:

Thank you for your review and comments. I'm working through the feedback and will post an updated version of the PR soon with the suggested changes addressed.

https://github.com/llvm/llvm-project/pull/205995