[llvm] [InstCombine] Canonicalize complex boolean expressions into ~((y | z) ^ x) via 3-input truth table (PR #149530)

[Yingwei Zheng via llvm-commits]

https://github.com/dtcxzyw approved this pull request.

I don't have further comments. Please wait for additional approval from other reviewers.

https://github.com/llvm/llvm-project/pull/149530