[llvm-branch-commits] [llvm] release/18.x: InstCombine: Process addrspacecast uses in PointerReplacer (#91953) (PR #92479)

[Nikita Popov via llvm-branch-commits]

https://github.com/nikic requested changes to this pull request.

There are test failures.

Generally I don't have enough confidence in this change for a last-minute backport.

https://github.com/llvm/llvm-project/pull/92479