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e118351c7e
The worklist algorithm introduced in rL271151 didn't check to see if the direct users of the post-inc add recurrence propagates poison. This change fixes the problem and makes the code structure more obvious. Note for release managers: correctness wise, this bug wasn't a regression introduced by rL271151 -- the behavior of SCEV around post-inc add recurrences was strictly improved (in terms of correctness) in rL271151. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@272179 91177308-0d34-0410-b5e6-96231b3b80d8
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