[Dominators] Split SemiNCA into smaller functions
Summary:
This patch splits the SemiNCA algorithm into smaller functions. It also adds a new debug macro.
In order to perform incremental updates, we need to be able to refire SemiNCA on a subset of CFG nodes (determined by a DFS walk results). We also need to skip nodes that are not deep enough in a DomTree.
Reviewers: dberlin, davide, sanjoy, grosser
Reviewed By: dberlin, davide
Subscribers: llvm-commits
Differential Revision: https://reviews.llvm.org/D35282
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@307950 91177308-0d34-0410-b5e6-96231b3b80d8
1 file changed