[PATCH] D122671: [BasicAA] Check if V is itself a PHI in isValueEqualInPotentialCycles

[Nikita Popov via Phabricator via llvm-commits]

nikic added a comment.

The VisitedPhiBBs handling is related, but handles a different case: Sometimes, BasicAA //itself// will be looking across loop iterations when recursing into a phi, and VisitedPhiBBs is used to not assume equality relationships when that happens.


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https://reviews.llvm.org/D122671