[PATCH] D86983: [Attributor] Fix AANoUndef initialization

[Shinji Okumura via Phabricator via llvm-commits]

okura added inline comments.


================
Comment at: llvm/lib/Transforms/IPO/AttributorAttributes.cpp:7797
     else
       AANoUndef::initialize(A);
   }
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jdoerfert wrote:
> can we move the `AANoUndef::initialize(A);` unconditionally to the beginning of this function?
I think we cannot because `IRAttribute::initialize` indicates an optimistic fixpoint when the associated value is undef.


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