1601   BlockAndTailDupResult BestSucc = { nullptr, false };  in selectBestSuccessor()  local
1656     if (BestSucc.BB && BestProb >= SuccProb) {  in selectBestSuccessor()
1662     BestSucc.BB = Succ;  in selectBestSuccessor()
1686       BestSucc.BB = Succ;  in selectBestSuccessor()
1687       BestSucc.ShouldTailDup = true;  in selectBestSuccessor()
1692   if (BestSucc.BB)  in selectBestSuccessor()
1693     LLVM_DEBUG(dbgs() << "    Selected: " << getBlockName(BestSucc.BB) << "\n");  in selectBestSuccessor()
1695   return BestSucc;  in selectBestSuccessor()
1873     MachineBasicBlock* BestSucc = Result.BB;  in buildChain()  local
1876       ShouldTailDup |= (BestSucc && canTailDuplicateUnplacedPreds(BB, BestSucc,  in buildChain()
1883     if (!BestSucc)  in buildChain()
1884       BestSucc = selectBestCandidateBlock(Chain, BlockWorkList);  in buildChain()
1885     if (!BestSucc)  in buildChain()
1886       BestSucc = selectBestCandidateBlock(Chain, EHPadWorkList);  in buildChain()
1888     if (!BestSucc) {  in buildChain()
1890         BestSucc = getFirstUnplacedBlock(Chain, PrevUnplacedBlockInFilterIt,  in buildChain()
1893         BestSucc = getFirstUnplacedBlock(Chain, PrevUnplacedBlockIt);  in buildChain()
1894       if (!BestSucc)  in buildChain()
1903     if (allowTailDupPlacement() && BestSucc && ShouldTailDup) {  in buildChain()
1904       repeatedlyTailDuplicateBlock(BestSucc, BB, LoopHeaderBB, Chain,  in buildChain()
1909       if (!BB->isSuccessor(BestSucc))  in buildChain()
1914     BlockChain &SuccChain = *BlockToChain[BestSucc];  in buildChain()
1919                       << getBlockName(BestSucc) << "\n");  in buildChain()
1921     Chain.merge(BestSucc, &SuccChain);  in buildChain()