[PATCH] D77560: [SCEV] CreateNodeForPhi should return SCEVUnknown for incomplete PHIs

[Max Kazantsev via Phabricator via llvm-commits]

mkazantsev added a comment.

Let's frame it this way: please add an XFAIL test which runs some passes and fails an assertion with the situation you are describing. I think hiding the bug by returning `SCEVUnknown` is just wrong. We should investigate why we are making this query instead.


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  https://reviews.llvm.org/D77560/new/

https://reviews.llvm.org/D77560