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Remove ReversePostOrderTraversal declaration

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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@481 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Chris Lattner 2001-09-07 21:02:50 +00:00
parent 12a16341f6
commit 633bfa02d6
1 changed files with 0 additions and 30 deletions
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include/llvm/CFGdecls.h
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@ -138,36 +138,6 @@ inline po_const_iterator po_begin(const BasicBlock *BB);
inline po_iterator po_end ( BasicBlock *BB);
inline po_const_iterator po_end (const BasicBlock *BB);
//===--------------------------------------------------------------------===//
// Reverse Post Order CFG iterator code
//===--------------------------------------------------------------------===//
//
// This is used to visit basic blocks in a method in reverse post order. This
// class is awkward to use because I don't know a good incremental algorithm to
// computer RPO from a graph. Because of this, the construction of the
// ReversePostOrderTraversal object is expensive (it must walk the entire graph
// with a postorder iterator to build the data structures). The moral of this
// story is: Don't create more ReversePostOrderTraversal classes than neccesary.
//
// This class should be used like this:
// {
// cfg::ReversePostOrderTraversal RPOT(MethodPtr); // Expensive to create
// for (cfg::rpo_iterator I = RPOT.begin(); I != RPOT.end(); ++I) {
// ...
// }
// for (cfg::rpo_iterator I = RPOT.begin(); I != RPOT.end(); ++I) {
// ...
// }
// }
//
//typedef reverse_iterator<vector<BasicBlock*>::const_iterator>
// rpo_const_iterator;
typedef reverse_iterator<vector<BasicBlock*>::iterator> rpo_iterator;
class ReversePostOrderTraversal;
} // End namespace cfg
#endif