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

[Yingwei Zheng via cfe-commits]

dtcxzyw wrote:

> huffbench.c:319:10: runtime error: left shift of negative value -93
SUMMARY: UndefinedBehaviorSanitizer: undefined-behavior huffbench.c:319:10 

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