[PATCH] D42260: [JumpThreading] Don't select an edge that we know we can't thread

[Haicheng Wu via Phabricator via llvm-commits]

haicheng added inline comments.


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Comment at: lib/Transforms/Scalar/JumpThreading.cpp:1670
+             [&](const std::pair<BasicBlock *, BasicBlock *> &PredToDest) {
+               return LoopHeaders.count(PredToDest.second) != 0;
+             });
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What about other cases that ThreadEdge() does not support, e.g. SuccBB == BB?


Repository:
  rL LLVM

https://reviews.llvm.org/D42260