250   void rotateLoop(BlockChain &LoopChain, MachineBasicBlock *ExitingBB,
756 void MachineBlockPlacement::rotateLoop(BlockChain &LoopChain,  in rotateLoop()  argument
762   MachineBasicBlock *Top = *LoopChain.begin();  in rotateLoop()
777     MachineBasicBlock *Bottom = *std::prev(LoopChain.end());  in rotateLoop()
787       std::find(LoopChain.begin(), LoopChain.end(), ExitingBB);  in rotateLoop()
788   if (ExitIt == LoopChain.end())  in rotateLoop()
791   std::rotate(LoopChain.begin(), std::next(ExitIt), LoopChain.end());  in rotateLoop()
823   BlockChain &LoopChain = *BlockToChain[LoopTop];  in buildLoopChains()  local
829   assert(LoopChain.LoopPredecessors == 0);  in buildLoopChains()
830   UpdatedPreds.insert(&LoopChain);  in buildLoopChains()
850   buildChain(LoopTop, LoopChain, BlockWorkList, &LoopBlockSet);  in buildLoopChains()
851   rotateLoop(LoopChain, ExitingBB, LoopBlockSet);  in buildLoopChains()
856     if (LoopChain.LoopPredecessors) {  in buildLoopChains()
860              << "  Chain header: " << getBlockName(*LoopChain.begin()) << "\n";  in buildLoopChains()
862     for (MachineBasicBlock *ChainBB : LoopChain) {  in buildLoopChains()
870                << "  Chain header: " << getBlockName(*LoopChain.begin()) << "\n"  in buildLoopChains()
880                << "  Chain header: " << getBlockName(*LoopChain.begin()) << "\n"  in buildLoopChains()