[llvm] [InstCombine] Iterative replacement in PtrReplacer (PR #144626)

[Anshil Gandhi via llvm-commits]

gandhi56 wrote:

Yup, I am not sure exactly which tests failed previously in the LLVM CI. I re-triggered GitHub CI and internal PSDB. At the moment, there are no changes in this PR.

https://github.com/llvm/llvm-project/pull/144626