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

[Florian Mayer via llvm-commits]

fmayer wrote:

> Seems like the root cause was an vectorizer bug, sent https://github.com/llvm/llvm-project/pull/120730 that fixes it.

This is landed, so from that side we could reland this.

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