856   for (MachineBasicBlock *SuccPred : Succ->predecessors()) {  in isProfitableToTailDup()
857     if (SuccPred == Succ || SuccPred == BB  in isProfitableToTailDup()
858         || BlockToChain[SuccPred] == &Chain  in isProfitableToTailDup()
859         || (BlockFilter && !BlockFilter->count(SuccPred)))  in isProfitableToTailDup()
861     auto Freq = MBFI->getBlockFreq(SuccPred)  in isProfitableToTailDup()
862         * MBPI->getEdgeProbability(SuccPred, Succ);  in isProfitableToTailDup()
968     for (auto *SuccPred : Succ->predecessors()) {  in isTrellis()  local
970       if (Successors.count(SuccPred)) {  in isTrellis()
972         for (MachineBasicBlock *CheckSucc : SuccPred->successors())  in isTrellis()
977       const BlockChain *PredChain = BlockToChain[SuccPred];  in isTrellis()
978       if (SuccPred == BB || (BlockFilter && !BlockFilter->count(SuccPred)) ||  in isTrellis()
983       if (!SeenPreds.insert(SuccPred).second)  in isTrellis()
985       if (!hasSameSuccessors(*SuccPred, Successors))  in isTrellis()
1067     for (MachineBasicBlock *SuccPred : Succ->predecessors()) {  in getBestTrellisSuccessor()
1069       if (SuccPred != BB)  in getBestTrellisSuccessor()
1070         if ((BlockFilter && !BlockFilter->count(SuccPred)) ||  in getBestTrellisSuccessor()
1071             BlockToChain[SuccPred] == &Chain ||  in getBestTrellisSuccessor()
1072             BlockToChain[SuccPred] == BlockToChain[Succ])  in getBestTrellisSuccessor()
1074       BlockFrequency EdgeFreq = MBFI->getBlockFreq(SuccPred) *  in getBestTrellisSuccessor()
1075                                 MBPI->getEdgeProbability(SuccPred, Succ);  in getBestTrellisSuccessor()
1076       Edges[SuccIndex].push_back({EdgeFreq, SuccPred, Succ});  in getBestTrellisSuccessor()