[llvm] [AMDGPU] prevent shrinking udiv/urem if either operand is in (SignedMax,UnsignedMax] (PR #116733)

[Changpeng Fang via llvm-commits]

changpeng wrote:

> I'll try to do a local test and confirm if it's this patch and request a revert if so. If anyone else wants to try you should just need to add the options documented in https://libc.llvm.org/gpu/building.html and do `ninja check-libc-amdgcn-amd-amdhsa`.

Could it possibly be smoker tester error?  I think this change just resulting in less optimized udiv/drem 

https://github.com/llvm/llvm-project/pull/116733