[PATCH] D32740: [PM/Unswitch] Fix a bug in the domtree update logic for the new unswitch pass.

[Chandler Carruth via Phabricator via llvm-commits]

chandlerc added a comment.

FYI, I'm still waiting to hear back from you Danny...

In my subsequent patch, I actually start recomputing the entire dominator tree as the updates become far too complex to make sense. However, if possible I'd like to keep the update logic here as the next patch goes and immediately *queries* the dominator tree to do non-trivial unswitching cost estimation.

But I may take a shot at removing that and moving to *just* recomputing the dominator tree until we have the incremental update facilities properly integrated.


https://reviews.llvm.org/D32740