[llvm] [InstCombine] Fix a crash in `PointerReplacer` (PR #98987)

[Matt Arsenault via llvm-commits]

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@@ -0,0 +1,33 @@
+; NOTE: Assertions have been autogenerated by utils/update_test_checks.py
+; RUN: opt -passes=instcombine -S -o - %s | FileCheck %s
+; REQUIRES: amdgpu-registered-target
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arsenm wrote:

Although maybe this doesn't require the target, maybe just the datalayout with A5?

https://github.com/llvm/llvm-project/pull/98987