[llvm] [InstCombine] Optimise the expression `(C && A) || (!C && B)` with `FoldOrOfLogicalAnds` (PR #178438)

[Andreas Jonson via llvm-commits]

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andjo403 wrote:

still think that SelCond and SelFVal also shall be called  SelOp0 and SelOp1 as cond and Fval is not mention in this context

https://github.com/llvm/llvm-project/pull/178438