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Add df_iterator::getPathLength and getPath as a way of getting a path from the

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entry node to the current node.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@111392 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Jakob Stoklund Olesen 2010-08-18 19:00:05 +00:00
parent 4ae56d725d
commit 6709c7bcda
1 changed files with 10 additions and 0 deletions
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10
include/llvm/ADT/DepthFirstIterator.h
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@ -183,6 +183,16 @@ public:
inline bool nodeVisited(NodeType *Node) const {
return this->Visited.count(Node) != 0;
}
/// getPathLength - Return the length of the path from the entry node to the
/// current node, counting both nodes.
unsigned getPathLength() const { return VisitStack.size(); }
/// getPath - Return the n'th node in the path from the the entry node to the
/// current node.
NodeType *getPath(unsigned n) const {
return VisitStack[n].first.getPointer();
}
};