781   for (MachineBasicBlock *SuccPred : Succ->predecessors()) {  in isProfitableToTailDup()
782     if (SuccPred == Succ || SuccPred == BB  in isProfitableToTailDup()
783         || BlockToChain[SuccPred] == &Chain  in isProfitableToTailDup()
784         || (BlockFilter && !BlockFilter->count(SuccPred)))  in isProfitableToTailDup()
786     auto Freq = MBFI->getBlockFreq(SuccPred)  in isProfitableToTailDup()
787         * MBPI->getEdgeProbability(SuccPred, Succ);  in isProfitableToTailDup()
893     for (auto SuccPred : Succ->predecessors()) {  in isTrellis()  local
895       if (Successors.count(SuccPred)) {  in isTrellis()
897         for (MachineBasicBlock *CheckSucc : SuccPred->successors())  in isTrellis()
902       const BlockChain *PredChain = BlockToChain[SuccPred];  in isTrellis()
903       if (SuccPred == BB || (BlockFilter && !BlockFilter->count(SuccPred)) ||  in isTrellis()
908       if (!SeenPreds.insert(SuccPred).second)  in isTrellis()
910       if (!hasSameSuccessors(*SuccPred, Successors))  in isTrellis()
992     for (MachineBasicBlock *SuccPred : Succ->predecessors()) {  in getBestTrellisSuccessor()
994       if (SuccPred != BB)  in getBestTrellisSuccessor()
995         if ((BlockFilter && !BlockFilter->count(SuccPred)) ||  in getBestTrellisSuccessor()
996             BlockToChain[SuccPred] == &Chain ||  in getBestTrellisSuccessor()
997             BlockToChain[SuccPred] == BlockToChain[Succ])  in getBestTrellisSuccessor()
999       BlockFrequency EdgeFreq = MBFI->getBlockFreq(SuccPred) *  in getBestTrellisSuccessor()
1000                                 MBPI->getEdgeProbability(SuccPred, Succ);  in getBestTrellisSuccessor()
1001       Edges[SuccIndex].push_back({EdgeFreq, SuccPred, Succ});  in getBestTrellisSuccessor()