[clang] [llvm] [InstCombine] Infer nuw for gep inbounds from base of object (PR #119225)

[Nikita Popov via llvm-commits]

nikic wrote:

I think https://github.com/llvm/llvm-test-suite/pull/190 should fix this issue, but haven't tested on an affected arch.

I'm a bit worried that we don't have a sanitizer to catch this issue (the negative left shift issue is an unrelated one).

https://github.com/llvm/llvm-project/pull/119225