[llvm] IR: introduce struct with CmpInst::Predicate and samesign (PR #116867)

[Ramkumar Ramachandra via llvm-commits]

artagnon wrote:

> Looks like this has compile-time overhead: https://llvm-compile-time-tracker.com/compare.php?from=f33536468b7f05c05c8cf8088427b0b5b665eb65&to=51a895aded890e90493be59f7af0fa5a3b9b85aa&stat=instructions:u

What choice do we have? I think the samesign feature, by design, will add compile-time overhead to enable throughout the entire compiler flow.

https://github.com/llvm/llvm-project/pull/116867