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Have internal df_iterator's use SmallPtrSet instead of std::set. This provides compile time speedups to any pass using df_iterator.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@37694 91177308-0d34-0410-b5e6-96231b3b80d8
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@ -35,6 +35,7 @@
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#include "llvm/ADT/GraphTraits.h"
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#include "llvm/ADT/iterator"
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#include "llvm/ADT/SmallPtrSet.h"
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#include <vector>
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#include <set>
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@ -58,8 +59,8 @@ public:
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// Generic Depth First Iterator
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template<class GraphT, class SetType =
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std::set<typename GraphTraits<GraphT>::NodeType*>,
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template<class GraphT,
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class SetType = llvm::SmallPtrSet<typename GraphTraits<GraphT>::NodeType*, 8>,
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bool ExtStorage = false, class GT = GraphTraits<GraphT> >
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class df_iterator : public forward_iterator<typename GT::NodeType, ptrdiff_t>,
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public df_iterator_storage<SetType, ExtStorage> {
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@ -189,7 +190,8 @@ df_ext_iterator<T, SetTy> df_ext_end(T G, SetTy &S) {
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// Provide global definitions of inverse depth first iterators...
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template <class T, class SetTy = std::set<typename GraphTraits<T>::NodeType*>,
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template <class T,
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class SetTy = llvm::SmallPtrSet<typename GraphTraits<T>::NodeType*, 8>,
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bool External = false>
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struct idf_iterator : public df_iterator<Inverse<T>, SetTy, External> {
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idf_iterator(const df_iterator<Inverse<T>, SetTy, External> &V)
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