[PATCH] D29243: Cache reverse graph edges during dominator construction to avoidhaving to look them up later.

[Davide Italiano via Phabricator via llvm-commits]

davide added inline comments.


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Comment at: include/llvm/Support/GenericDomTree.h:250
     NodeT *Label;
-
+    SmallVector<NodeT *, 2> ReverseChildren;
     InfoRec() : DFSNum(0), Parent(0), Semi(0), Label(nullptr) {}
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Just wondering, why 2?


https://reviews.llvm.org/D29243