[PATCH] D154885: [DAGCombiner] Limit graph traversal to cap compile times

[Fangrui Song via Phabricator via llvm-commits]

MaskRay accepted this revision.
MaskRay added a comment.
This revision is now accepted and ready to land.

I think this is reasonable. We also use a threshold argument in some other places where `hasPredecessorHelper` is used, e.g. `SelectionDAGISel.cpp` 8192.


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https://reviews.llvm.org/D154885