511     BasicBlock *NewHeader = BI->getSuccessor(1);  in rotateLoop()  local
514       std::swap(Exit, NewHeader);  in rotateLoop()
515     assert(NewHeader && "Unable to determine new loop header");  in rotateLoop()
516     assert(L->contains(NewHeader) && !L->contains(Exit) &&  in rotateLoop()
521     assert(NewHeader->getSinglePredecessor() &&  in rotateLoop()
523     FoldSingleEntryPHINodes(NewHeader);  in rotateLoop()
712           NewHeader->getFirstNonPHIIt();  in rotateLoop()
717         NewNAD->insertBefore(*NewHeader, NewHeaderInsertionPoint);  in rotateLoop()
723         auto &Context = NewHeader->getContext();  in rotateLoop()
748         LLVM_DEBUG(NewHeader->dump());  in rotateLoop()
787     L->moveToHeader(NewHeader);  in rotateLoop()
788     assert(L->getHeader() == NewHeader && "Latch block is our new header");  in rotateLoop()
796       Updates.push_back({DominatorTree::Insert, OrigPreheader, NewHeader});  in rotateLoop()
820         PHBI->getSuccessor(cast<ConstantInt>(Cond)->isZero()) != NewHeader;  in rotateLoop()
832                                             OrigPreheader, NewHeader,  in rotateLoop()
834       NewPH->setName(NewHeader->getName() + ".lr.ph");  in rotateLoop()
861       BranchInst *NewBI = BranchInst::Create(NewHeader, PHBI);  in rotateLoop()