[clang] [CIR] Reposition entry-block allocas ahead of control flow (PR #220496)

[Mariya Podchishchaeva via cfe-commits]

https://github.com/Fznamznon commented:

That makes sense to me, though I don't think I'm yet qualified enough in CIR to give a real approval.


https://github.com/llvm/llvm-project/pull/220496