[PATCH] D35918: [GVNHoist] Factor out reachability to search for anticipable instructions quickly

Aditya Kumar via Phabricator via llvm-commits llvm-commits at lists.llvm.org
Wed Jul 26 15:31:42 PDT 2017

hiraditya added a comment.

In https://reviews.llvm.org/D35918#822143, @dberlin wrote:

> FYI: IDFCalculator can compute the PostDominanceFrontier in linear time.

I was unable to find how to pass the root node of inverse graph, because there might be more than one root.


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