867   for (MachineBasicBlock *SuccPred : Succ->predecessors()) {  in isProfitableToTailDup()
868     if (SuccPred == Succ || SuccPred == BB  in isProfitableToTailDup()
869         || BlockToChain[SuccPred] == &Chain  in isProfitableToTailDup()
870         || (BlockFilter && !BlockFilter->count(SuccPred)))  in isProfitableToTailDup()
872     auto Freq = MBFI->getBlockFreq(SuccPred)  in isProfitableToTailDup()
873         * MBPI->getEdgeProbability(SuccPred, Succ);  in isProfitableToTailDup()
979     for (auto *SuccPred : Succ->predecessors()) {  in isTrellis()  local
981       if (Successors.count(SuccPred)) {  in isTrellis()
983         for (MachineBasicBlock *CheckSucc : SuccPred->successors())  in isTrellis()
988       const BlockChain *PredChain = BlockToChain[SuccPred];  in isTrellis()
989       if (SuccPred == BB || (BlockFilter && !BlockFilter->count(SuccPred)) ||  in isTrellis()
994       if (!SeenPreds.insert(SuccPred).second)  in isTrellis()
996       if (!hasSameSuccessors(*SuccPred, Successors))  in isTrellis()
1078     for (MachineBasicBlock *SuccPred : Succ->predecessors()) {  in getBestTrellisSuccessor()
1080       if (SuccPred != BB)  in getBestTrellisSuccessor()
1081         if ((BlockFilter && !BlockFilter->count(SuccPred)) ||  in getBestTrellisSuccessor()
1082             BlockToChain[SuccPred] == &Chain ||  in getBestTrellisSuccessor()
1083             BlockToChain[SuccPred] == BlockToChain[Succ])  in getBestTrellisSuccessor()
1085       BlockFrequency EdgeFreq = MBFI->getBlockFreq(SuccPred) *  in getBestTrellisSuccessor()
1086                                 MBPI->getEdgeProbability(SuccPred, Succ);  in getBestTrellisSuccessor()
1087       Edges[SuccIndex].push_back({EdgeFreq, SuccPred, Succ});  in getBestTrellisSuccessor()