542                   MachineBasicBlock *PredBB,  in ProfitableToMerge()  argument
580   if ((MBB1 == PredBB || MBB2 == PredBB) &&  in ProfitableToMerge()
583     unsigned NumTerms = CountTerminators(MBB1 == PredBB ? MBB2 : MBB1, I);  in ProfitableToMerge()
628   if (SuccBB && MBB1 != PredBB && MBB2 != PredBB &&  in ProfitableToMerge()
654                                         MachineBasicBlock *PredBB) {  in ComputeSameTails()  argument
667                             SuccBB, PredBB,  in ComputeSameTails()
689                                         MachineBasicBlock *PredBB) {  in RemoveBlocksWithHash()  argument
696     if (SuccBB && CurMBB != PredBB)  in RemoveBlocksWithHash()
706 bool BranchFolder::CreateCommonTailOnlyBlock(MachineBasicBlock *&PredBB,  in CreateCommonTailOnlyBlock()  argument
714     if (SameTails[i].getBlock() == PredBB) {  in CreateCommonTailOnlyBlock()
750   if (PredBB == MBB)  in CreateCommonTailOnlyBlock()
751     PredBB = newMBB;  in CreateCommonTailOnlyBlock()
886                                       MachineBasicBlock *PredBB,  in TryTailMergeBlocks()  argument
897         if (PredBB)  in TryTailMergeBlocks()
899                  << printMBBReference(*PredBB) << "\n";  in TryTailMergeBlocks()
916                                                     SuccBB, PredBB);  in TryTailMergeBlocks()
921       RemoveBlocksWithHash(CurHash, SuccBB, PredBB);  in TryTailMergeBlocks()
952         if (MBB == PredBB) {  in TryTailMergeBlocks()
962         (SameTails[commonTailIndex].getBlock() == PredBB &&  in TryTailMergeBlocks()
966       if (!CreateCommonTailOnlyBlock(PredBB, SuccBB,  in TryTailMergeBlocks()
968         RemoveBlocksWithHash(CurHash, SuccBB, PredBB);  in TryTailMergeBlocks()
1053     MachineBasicBlock *PredBB = &*std::prev(I);  in TailMergeBlocks()  local
1138       MadeChange |= TryTailMergeBlocks(IBB, PredBB, MinCommonTailLength);  in TailMergeBlocks()
1142     PredBB = &*std::prev(I); // this may have been changed in TryTailMergeBlocks  in TailMergeBlocks()
1144         MergePotentials.begin()->getBlock() != PredBB)  in TailMergeBlocks()
1312   for (MachineBasicBlock *PredBB : MBB.predecessors())  in salvageDebugInfoFromEmptyBlock()
1313     if (PredBB->succ_size() == 1)  in salvageDebugInfoFromEmptyBlock()
1314       copyDebugInfoToPredecessor(TII, MBB, *PredBB);  in salvageDebugInfoFromEmptyBlock()
1690       for (MachineBasicBlock *PredBB : MBB->predecessors()) {  in OptimizeBlock()
1694         if (PredBB != MBB && !PredBB->canFallThrough() &&  in OptimizeBlock()
1695             !TII->analyzeBranch(*PredBB, PredTBB, PredFBB, PredCond, true) &&  in OptimizeBlock()
1698             (!CurFallsThru || MBB->getNumber() >= PredBB->getNumber())) {  in OptimizeBlock()
1714           MBB->moveAfter(PredBB);  in OptimizeBlock()