Jakub Kuderski 82f51d560c [Dominators] Implement incremental deletions
Summary:
This patch implements incremental edge deletions.

It also makes DominatorTreeBase store a pointer to the parent function. The parent function is needed to perform full rebuilts during some deletions, but it is also used to verify that inserted and deleted edges come from the same function.

Reviewers: dberlin, davide, grosser, sanjoy, brzycki

Reviewed By: dberlin

Subscribers: llvm-commits

Differential Revision: https://reviews.llvm.org/D35342

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@308062 91177308-0d34-0410-b5e6-96231b3b80d8
2017-07-14 21:58:53 +00:00
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