+void Region::replaceEntryRecursive(BasicBlock *NewEntry) {
+ std::vector<Region *> RegionQueue;
+ BasicBlock *OldEntry = getEntry();
+
+ RegionQueue.push_back(this);
+ while (!RegionQueue.empty()) {
+ Region *R = RegionQueue.back();
+ RegionQueue.pop_back();
+
+ R->replaceEntry(NewEntry);
+ for (Region::const_iterator RI = R->begin(), RE = R->end(); RI != RE; ++RI)
+ if ((*RI)->getEntry() == OldEntry)
+ RegionQueue.push_back(*RI);
+ }
+}
+
+void Region::replaceExitRecursive(BasicBlock *NewExit) {
+ std::vector<Region *> RegionQueue;
+ BasicBlock *OldExit = getExit();
+
+ RegionQueue.push_back(this);
+ while (!RegionQueue.empty()) {
+ Region *R = RegionQueue.back();
+ RegionQueue.pop_back();
+
+ R->replaceExit(NewExit);
+ for (Region::const_iterator RI = R->begin(), RE = R->end(); RI != RE; ++RI)
+ if ((*RI)->getExit() == OldExit)
+ RegionQueue.push_back(*RI);
+ }
+}
+