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Add interface to update domfrontier info, thanks to Casey Carter for impl

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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@4456 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Chris Lattner 2002-10-31 02:39:48 +00:00
parent b07a4409c2
commit a24e09df76
1 changed files with 21 additions and 3 deletions
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24
include/llvm/Analysis/Dominators.h
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@ -379,9 +379,27 @@ public:
// Accessor interface: // Accessor interface:
typedef DomSetMapType::const_iterator const_iterator; typedef DomSetMapType::const_iterator const_iterator;
inline const_iterator begin() const { return Frontiers.begin(); } const_iterator begin() const { return Frontiers.begin(); }
inline const_iterator end() const { return Frontiers.end(); } const_iterator end() const { return Frontiers.end(); }
inline const_iterator find(BasicBlock* B) const { return Frontiers.find(B); } const_iterator find(BasicBlock* B) const { return Frontiers.find(B); }
void addBasicBlock(BasicBlock *BB, const DomSetType &frontier) {
assert(find(BB) == end() && "Block already in DominanceFrontier!");
Frontiers.insert(std::make_pair(BB, frontier));
}
void addToFrontier(BasicBlock *BB, BasicBlock *Node) {
DomSetMapType::iterator I = Frontiers.find(BB);
assert(I != end() && "BB is not in DominanceFrontier!");
I->second.insert(Node);
}
void removeFromFrontier(BasicBlock *BB, BasicBlock *Node) {
DomSetMapType::iterator I = Frontiers.find(BB);
assert(I != end() && "BB is not in DominanceFrontier!");
assert(I->second.count(Node) && "Node is not in DominanceFrontier of BB");
I->second.erase(Node);
}
// print - Convert to human readable form // print - Convert to human readable form
virtual void print(std::ostream &OS) const; virtual void print(std::ostream &OS) const;