2744   BlockChain &FunctionChain = *BlockToChain[&F->front()];  in buildCFGChains()  local
2745   buildChain(&F->front(), FunctionChain);  in buildCFGChains()
2757     for (MachineBasicBlock *ChainBB : FunctionChain)  in buildCFGChains()
2790   for (MachineBasicBlock *ChainBB : FunctionChain) {  in buildCFGChains()
2791     LLVM_DEBUG(dbgs() << (ChainBB == *FunctionChain.begin() ? "Placing chain "  in buildCFGChains()
2800     if (ChainBB == *FunctionChain.begin())  in buildCFGChains()
2862   BlockChain &FunctionChain = *BlockToChain[&F->front()];  in optimizeBranches()  local
2871   for (MachineBasicBlock *ChainBB : FunctionChain) {  in optimizeBranches()
2903   BlockChain &FunctionChain = *BlockToChain[&F->front()];  in alignBlocks()  local
2904   if (FunctionChain.begin() == FunctionChain.end())  in alignBlocks()
2910   for (MachineBasicBlock *ChainBB : FunctionChain) {  in alignBlocks()
2911     if (ChainBB == *FunctionChain.begin())  in alignBlocks()
3640   BlockChain *FunctionChain =  in createCFGChainExtTsp()  local
3646     FunctionChain->merge(&MBB, nullptr);  in createCFGChainExtTsp()