[PATCH] D110620: [SCEV] Infer ranges for SCC consisting of cycled Phis

[Max Kazantsev via Phabricator via llvm-commits]

mkazantsev added inline comments.


================
Comment at: llvm/lib/Analysis/ScalarEvolution.cpp:6266
+              if (PendingPhiRanges.count(PhiOp))
+                continue;
+              if (Reachable.insert(PhiOp).second)
----------------
mkazantsev wrote:
> nikic wrote:
> > Why is it okay to ignore operands in PendingPhiRanges here?
> They are not ignored, they are some SS Phi's input so they will be in `Roots`. We will take the range from them for our union.
SCC Phi*


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  https://reviews.llvm.org/D110620/new/

https://reviews.llvm.org/D110620