836   for (MachineBasicBlock *SuccPred : Succ->predecessors()) {  in isProfitableToTailDup()
837     if (SuccPred == Succ || SuccPred == BB  in isProfitableToTailDup()
838         || BlockToChain[SuccPred] == &Chain  in isProfitableToTailDup()
839         || (BlockFilter && !BlockFilter->count(SuccPred)))  in isProfitableToTailDup()
841     auto Freq = MBFI->getBlockFreq(SuccPred)  in isProfitableToTailDup()
842         * MBPI->getEdgeProbability(SuccPred, Succ);  in isProfitableToTailDup()
948     for (auto SuccPred : Succ->predecessors()) {  in isTrellis()  local
950       if (Successors.count(SuccPred)) {  in isTrellis()
952         for (MachineBasicBlock *CheckSucc : SuccPred->successors())  in isTrellis()
957       const BlockChain *PredChain = BlockToChain[SuccPred];  in isTrellis()
958       if (SuccPred == BB || (BlockFilter && !BlockFilter->count(SuccPred)) ||  in isTrellis()
963       if (!SeenPreds.insert(SuccPred).second)  in isTrellis()
965       if (!hasSameSuccessors(*SuccPred, Successors))  in isTrellis()
1047     for (MachineBasicBlock *SuccPred : Succ->predecessors()) {  in getBestTrellisSuccessor()
1049       if (SuccPred != BB)  in getBestTrellisSuccessor()
1050         if ((BlockFilter && !BlockFilter->count(SuccPred)) ||  in getBestTrellisSuccessor()
1051             BlockToChain[SuccPred] == &Chain ||  in getBestTrellisSuccessor()
1052             BlockToChain[SuccPred] == BlockToChain[Succ])  in getBestTrellisSuccessor()
1054       BlockFrequency EdgeFreq = MBFI->getBlockFreq(SuccPred) *  in getBestTrellisSuccessor()
1055                                 MBPI->getEdgeProbability(SuccPred, Succ);  in getBestTrellisSuccessor()
1056       Edges[SuccIndex].push_back({EdgeFreq, SuccPred, Succ});  in getBestTrellisSuccessor()