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

[Vedant Paranjape via llvm-commits]

vedantparanjape-amd wrote:

> > @arsenm @jdoerfert I have addressed the comment,
> 
> This PR hasn't been updated?

Done, please take a look! adding the testcases in sometime.

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