SimulGraph::getVertex() now also returns a bool indicating if the returned
vertex was freshly created. llvm-svn: 45550
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@ -58,8 +58,10 @@ public:
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/// getVertex - Retrieve the vertex associated with a (Location,State) pair,
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/// where the 'Location' is a ProgramEdge in the CFG. If no vertex for
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/// this pair exists, it is created.
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VertexTy* getVertex(const ProgramEdge& L, typename VertexTy::StateTy State) {
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/// this pair exists, it is created. The bool returned in the pair
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/// is true if the vertex was freshly created.
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std::pair<VertexTy*,bool> getVertex(const ProgramEdge& L,
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typename VertexTy::StateTy State) {
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// Retrieve the vertex set associated with Loc.
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VertexSet& VSet = VerticesOfEdge[L];
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@ -75,7 +77,7 @@ public:
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VertexTy::StateTy::Profile(profile, State);
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if ((V = VSet.FindNodeOrInsertPos(profile,InsertPos)))
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return V;
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return std::make_pair(V,false);
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// No cache hit. Allocate a new vertex.
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V = (VertexTy*) Allocator.Allocate<VertexTy>();
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@ -84,7 +86,7 @@ public:
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// Insert the vertex into the vertex set and return it.
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VSet.InsertNode(V,InsertPos);
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return V;
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return std::make_pair(V,true);
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}
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/// addRoot - Add a vertex to the set of roots.
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