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

[Nikita Popov via llvm-commits]

nikic wrote:

>From a quick look, it's probably due to UB on this line: https://github.com/llvm/llvm-test-suite/blob/4f14adb8a2f2c5fa02c6b3643d45e74adfcb31f9/SingleSource/Benchmarks/CoyoteBench/huffbench.c#L114 It indexes below the start of an object.

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