[llvm] [VPlan] Extend CSE to eliminate GEPs (PR #156699)

[Florian Hahn via llvm-commits]

https://github.com/fhahn commented:

Hopefully the regression can be avoided by preserving common flags on recipes: https://github.com/llvm/llvm-project/pull/157664

https://github.com/llvm/llvm-project/pull/156699