[llvm] [InstCombine] Detect uadd with overflow idiom (PR #140178)

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AZero13 wrote:

> Did you just force push main again? I clicked the "Compare" button on github and it is showing additional changes from main. It makes it very hard to see whether the content of your patch changed. So I have to assume it did and must re-review it all over again.



> Did you just force push main again? I clicked the "Compare" button on github and it is showing additional changes from main. It makes it very hard to see whether the content of your patch changed. So I have to assume it did and must re-review it all over again.

I get it now. Ok. No more force-pushing. I now see the issue. 

https://github.com/llvm/llvm-project/pull/140178