Jakub Kuderski 4552e9de9f [ADCE][Dominators] Teach ADCE to preserve dominators
Summary:
This patch teaches ADCE to preserve both DominatorTrees and PostDominatorTrees.

I didn't notice any performance impact when bootstrapping clang with this patch.

Reviewers: dberlin, chandlerc, sanjoy, davide, grosser, brzycki

Reviewed By: davide

Subscribers: grandinj, zhendongsu, llvm-commits, david2050

Differential Revision: https://reviews.llvm.org/D35869

llvm-svn: 311039
2017-08-16 20:50:23 +00:00
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