[PATCH] D38960: [Local] Fix a bug in the domtree update logic for MergeBasicBlockIntoOnlyPred.

Jakub Kuderski via Phabricator via llvm-commits llvm-commits at lists.llvm.org
Mon Oct 16 09:46:35 PDT 2017

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kuhar added a comment.

> For some irreducible CFG the domtree nodes might be dead, do not update domtree for dead nodes.

Can you show some example of such CFG and add a comment explaining this check?

DomTree::getNode return nullptr only for forward-unreachable CFG nodes.


https://reviews.llvm.org/D38960

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