[llvm] [VPlan] Simplify (X && Y) || (X && !Y) -> X. (PR #89386)

[Florian Hahn via llvm-commits]

https://github.com/fhahn commented:

The latest version is simplified by stripping out the logic to match commutative expressions and limits the matching to the existing BinaryOr (renamed to be more accurate) and the new LogicalAnd matchers.

I'll share a follow-up adding just the commutative matcher

https://github.com/llvm/llvm-project/pull/89386