[llvm] [ArgPromotion] Handle pointer arguments of recursive calls (PR #78735)

[Vedant Paranjape via llvm-commits]

vedantparanjape-amd wrote:

> LGTM with one minor comment.
> 
> (In the future, please give a little more time for people to reply; I get a lot of review email every day.)

Thanks, sorry for too many pings.

https://github.com/llvm/llvm-project/pull/78735