[llvm] [InstCombine] Fold `(x < y) ? -1 : zext(x != y)` into `u/scmp(x,y)` (PR #101049)

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Mon Aug 26 05:56:00 PDT 2024

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asmok-g wrote:

Thanks! Looks like this fixes the miscompile. Verified some targets and will verify the rest.

https://github.com/llvm/llvm-project/pull/101049

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