[llvm] [VPlan] Transform VPFirstOrderRecurrencePHIRecipe into concrete recipes (PR #172009)

[Florian Hahn via llvm-commits]

https://github.com/fhahn commented:

Overall this seems to be a good alternative to https://github.com/llvm/llvm-project/pull/171772, thanks for  checking!

https://github.com/llvm/llvm-project/pull/172009