637                   MachineBasicBlock *PredBB,  in ProfitableToMerge()  argument
662   if ((MBB1 == PredBB || MBB2 == PredBB) &&  in ProfitableToMerge()
665     unsigned NumTerms = CountTerminators(MBB1 == PredBB ? MBB2 : MBB1, I);  in ProfitableToMerge()
710   if (SuccBB && MBB1 != PredBB && MBB2 != PredBB &&  in ProfitableToMerge()
732                                         MachineBasicBlock *PredBB) {  in ComputeSameTails()  argument
745                             SuccBB, PredBB,  in ComputeSameTails()
767                                         MachineBasicBlock *PredBB) {  in RemoveBlocksWithHash()  argument
774     if (SuccBB && CurMBB != PredBB)  in RemoveBlocksWithHash()
784 bool BranchFolder::CreateCommonTailOnlyBlock(MachineBasicBlock *&PredBB,  in CreateCommonTailOnlyBlock()  argument
792     if (SameTails[i].getBlock() == PredBB) {  in CreateCommonTailOnlyBlock()
828   if (PredBB == MBB)  in CreateCommonTailOnlyBlock()
829     PredBB = newMBB;  in CreateCommonTailOnlyBlock()
956                                       MachineBasicBlock *PredBB,  in TryTailMergeBlocks()  argument
967         if (PredBB)  in TryTailMergeBlocks()
969                  << printMBBReference(*PredBB) << "\n";  in TryTailMergeBlocks()
986                                                     SuccBB, PredBB);  in TryTailMergeBlocks()
991       RemoveBlocksWithHash(CurHash, SuccBB, PredBB);  in TryTailMergeBlocks()
1020         if (MBB == PredBB) {  in TryTailMergeBlocks()
1030         (SameTails[commonTailIndex].getBlock() == PredBB &&  in TryTailMergeBlocks()
1034       if (!CreateCommonTailOnlyBlock(PredBB, SuccBB,  in TryTailMergeBlocks()
1036         RemoveBlocksWithHash(CurHash, SuccBB, PredBB);  in TryTailMergeBlocks()
1123     MachineBasicBlock *PredBB = &*std::prev(I);  in TailMergeBlocks()  local
1230       MadeChange |= TryTailMergeBlocks(IBB, PredBB, MinCommonTailLength);  in TailMergeBlocks()
1234     PredBB = &*std::prev(I); // this may have been changed in TryTailMergeBlocks  in TailMergeBlocks()
1236         MergePotentials.begin()->getBlock() != PredBB)  in TailMergeBlocks()
1403   for (MachineBasicBlock *PredBB : MBB.predecessors())  in salvageDebugInfoFromEmptyBlock()
1404     if (PredBB->succ_size() == 1)  in salvageDebugInfoFromEmptyBlock()
1405       copyDebugInfoToPredecessor(TII, MBB, *PredBB);  in salvageDebugInfoFromEmptyBlock()
1766       for (MachineBasicBlock *PredBB : MBB->predecessors()) {  in OptimizeBlock()
1770         if (PredBB != MBB && !PredBB->canFallThrough() &&  in OptimizeBlock()
1771             !TII->analyzeBranch(*PredBB, PredTBB, PredFBB, PredCond, true) &&  in OptimizeBlock()
1773             (!CurFallsThru || MBB->getNumber() >= PredBB->getNumber())) {  in OptimizeBlock()
1789           MBB->moveAfter(PredBB);  in OptimizeBlock()