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Convert a std::vector to a SmallVector for another 5.4% speedup on domtree.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@124065 91177308-0d34-0410-b5e6-96231b3b80d8
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@ -53,8 +53,8 @@ unsigned DFSPass(DominatorTreeBase<typename GraphT::NodeType>& DT,
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#else
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bool IsChildOfArtificialExit = (N != 0);
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std::vector<std::pair<typename GraphT::NodeType*,
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typename GraphT::ChildIteratorType> > Worklist;
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SmallVector<std::pair<typename GraphT::NodeType*,
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typename GraphT::ChildIteratorType>, 32> Worklist;
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Worklist.push_back(std::make_pair(V, GraphT::child_begin(V)));
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while (!Worklist.empty()) {
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typename GraphT::NodeType* BB = Worklist.back().first;
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