[llvm] [VPlan] Expand AddRecs in VPSCEVExpander (PR #209921)

[Florian Hahn via llvm-commits]

fhahn wrote:

> There is one small regression on RISC-V:

Could you add an IR test case for this so we can confirm this is fixed by https://github.com/llvm/llvm-project/pull/215253?

https://github.com/llvm/llvm-project/pull/209921