[llvm] [PredicateInfo] Support `PredicateInfo` by adding `PHI` nodes that pick up info from created branch predicates (PR #151132)

[Rajveer Singh Bharadwaj via llvm-commits]

Rajveer100 wrote:

> +1, before this patch can be accepted I think it needs to show some utility in benchmarks or applications. There's some useful policy written about this in the InstCombine guide but I think it applies for most areas in LLVM: https://llvm.org/docs/InstCombineContributorGuide.html#id18

I don't know about the accuracy of this benchmark but I had put this earlier:

https://github.com/dtcxzyw/llvm-opt-benchmark/pull/2795#issuecomment-3278834663

Any specific benchmarking tools?



https://github.com/llvm/llvm-project/pull/151132