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02ea66d696
Summary: This patch introduces a way of informing the (Post)DominatorTree about multiple CFG updates that happened since the last tree update. This makes performing tree updates much easier, as it internally takes care of applying the updates in lockstep with the (virtual) updates to the CFG, which is done by reverse-applying future CFG updates. The batch updater is able to remove redundant updates that cancel each other out. In the future, it should be also possible to reorder updates to reduce the amount of work needed to perform the updates. Reviewers: dberlin, sanjoy, grosser, davide, brzycki Reviewed By: brzycki Subscribers: mgorny, llvm-commits Differential Revision: https://reviews.llvm.org/D36167 llvm-svn: 311015 |
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