[llvm] [GlobalOpt] Refactor CleanupPointerRootUsers (PR #84694)

[Florian Hahn via llvm-commits]

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@@ -0,0 +1,42 @@
+; NOTE: Assertions have been autogenerated by utils/update_test_checks.py UTC_ARGS: --version 4
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fhahn wrote:

please add new test coverage in a separate PR (i.e. precommit them, so that here we only see the functional diff)

https://github.com/llvm/llvm-project/pull/84694