[PATCH] D81089: Mark InstCombine as not preserving PostDomTree

[Alina Sbirlea via Phabricator via llvm-commits]

asbirlea added a comment.

I don't think the solution is to not preserve PDom either.
I think your suggestion from the description is spot-on though: "A better fix would be to improve PostDomTree to be insensitive to the order of successors in post-dom unreachable subgraphs." This is indeed an issue with the order of basic blocks when dealing with infinite loops.


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  https://reviews.llvm.org/D81089/new/

https://reviews.llvm.org/D81089