[llvm] [LangRef][IR] Add 3-way compare intrinsics llvm.scmp/llvm.ucmp (PR #83227)

[Dhruv Chawla via llvm-commits]

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In-Reply-To: <llvm.org/llvm/llvm-project/pull/83227 at github.com>


https://github.com/dc03-work approved this pull request.

LGTM with a couple minor nits.

https://github.com/llvm/llvm-project/pull/83227