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Daniil Suchkov 29a047ef9b [BasicAA] Handle PHIs without incoming values gracefully
Fix a bug introduced by f6f6f6375d1a4bced8a6e79a78726ab32b8dd879.
Now for empty PHIs, instead of crashing on assert(hasVal()) in
Optional's internals, we'll return NoAlias, as we did before that patch.

Differential Revision: https://reviews.llvm.org/D103831
2021-06-07 21:39:01 +00:00
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2020-10-29 18:17:55 -07:00