283   BasicBlock *NewHeader = BI->getSuccessor(1);  in rotateLoop()  local
285     std::swap(Exit, NewHeader);  in rotateLoop()
286   assert(NewHeader && "Unable to determine new loop header");  in rotateLoop()
287   assert(L->contains(NewHeader) && !L->contains(Exit) &&  in rotateLoop()
292   assert(NewHeader->getSinglePredecessor() &&  in rotateLoop()
294   FoldSingleEntryPHINodes(NewHeader);  in rotateLoop()
414   L->moveToHeader(NewHeader);  in rotateLoop()
415   assert(L->getHeader() == NewHeader && "Latch block is our new header");  in rotateLoop()
423     Updates.push_back({DominatorTree::Insert, OrigPreheader, NewHeader});  in rotateLoop()
445           NewHeader) {  in rotateLoop()
453         OrigPreheader, NewHeader,  in rotateLoop()
455     NewPH->setName(NewHeader->getName() + ".lr.ph");  in rotateLoop()
482     BranchInst *NewBI = BranchInst::Create(NewHeader, PHBI);  in rotateLoop()