[llvm] [TTI][TLI] Expose TargetLowering::isOffsetFoldingLegal (backend) to TargetTransformInfo for middle-end cost-benefit analysis (PR #104644)

[Matt Arsenault via llvm-commits]

https://github.com/arsenm commented:

can you post a use case PR separately? I'm not sure what you can do with this in the IR 

https://github.com/llvm/llvm-project/pull/104644