bool Interval::isLoop() const {
// There is a loop in this interval iff one of the predecessors of the header
// node lives in the interval.
- for (BasicBlock *Pred : predecessors(HeaderNode))
- if (contains(Pred))
+ for (::pred_iterator I = ::pred_begin(HeaderNode), E = ::pred_end(HeaderNode);
+ I != E; ++I)
+ if (contains(*I))
return true;
return false;
}