2710   BlockChain &FunctionChain = *BlockToChain[&F->front()];  in buildCFGChains()  local
2711   buildChain(&F->front(), FunctionChain);  in buildCFGChains()
2723     for (MachineBasicBlock *ChainBB : FunctionChain)  in buildCFGChains()
2756   for (MachineBasicBlock *ChainBB : FunctionChain) {  in buildCFGChains()
2757     LLVM_DEBUG(dbgs() << (ChainBB == *FunctionChain.begin() ? "Placing chain "  in buildCFGChains()
2766     if (ChainBB == *FunctionChain.begin())  in buildCFGChains()
2828   BlockChain &FunctionChain = *BlockToChain[&F->front()];  in optimizeBranches()  local
2837   for (MachineBasicBlock *ChainBB : FunctionChain) {  in optimizeBranches()
2869   BlockChain &FunctionChain = *BlockToChain[&F->front()];  in alignBlocks()  local
2870   if (FunctionChain.begin() == FunctionChain.end())  in alignBlocks()
2876   for (MachineBasicBlock *ChainBB : FunctionChain) {  in alignBlocks()
2877     if (ChainBB == *FunctionChain.begin())  in alignBlocks()