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------------------------------------------------------------------------ r322993 | kuhar | 2018-01-19 22:27:24 +0100 (Fri, 19 Jan 2018) | 16 lines [Dominators] Visit affected node candidates found at different root levels Summary: This patch attempts to fix the DomTree incremental insertion bug found here [[ https://bugs.llvm.org/show_bug.cgi?id=35969 | PR35969 ]] . When performing an insertion into a piece of unreachable CFG, we may find the same not at different levels. When this happens, the node can turn out to be affected when we find it starting from a node with a lower level in the tree. The level at which we start visitation affects if we consider a node affected or not. This patch tracks the lowest level at which each node was visited during insertion and allows it to be visited multiple times, if it can cause it to be considered affected. Reviewers: brzycki, davide, dberlin, grosser Reviewed By: brzycki Subscribers: llvm-commits Differential Revision: https://reviews.llvm.org/D42231 ------------------------------------------------------------------------ git-svn-id: https://llvm.org/svn/llvm-project/llvm/branches/release_60@323110 91177308-0d34-0410-b5e6-96231b3b80d8