544                   MachineBasicBlock *PredBB,  in ProfitableToMerge()  argument
582   if ((MBB1 == PredBB || MBB2 == PredBB) &&  in ProfitableToMerge()
585     unsigned NumTerms = CountTerminators(MBB1 == PredBB ? MBB2 : MBB1, I);  in ProfitableToMerge()
630   if (SuccBB && MBB1 != PredBB && MBB2 != PredBB &&  in ProfitableToMerge()
656                                         MachineBasicBlock *PredBB) {  in ComputeSameTails()  argument
669                             SuccBB, PredBB,  in ComputeSameTails()
691                                         MachineBasicBlock *PredBB) {  in RemoveBlocksWithHash()  argument
698     if (SuccBB && CurMBB != PredBB)  in RemoveBlocksWithHash()
708 bool BranchFolder::CreateCommonTailOnlyBlock(MachineBasicBlock *&PredBB,  in CreateCommonTailOnlyBlock()  argument
716     if (SameTails[i].getBlock() == PredBB) {  in CreateCommonTailOnlyBlock()
752   if (PredBB == MBB)  in CreateCommonTailOnlyBlock()
753     PredBB = newMBB;  in CreateCommonTailOnlyBlock()
880                                       MachineBasicBlock *PredBB,  in TryTailMergeBlocks()  argument
891         if (PredBB)  in TryTailMergeBlocks()
893                  << printMBBReference(*PredBB) << "\n";  in TryTailMergeBlocks()
910                                                     SuccBB, PredBB);  in TryTailMergeBlocks()
915       RemoveBlocksWithHash(CurHash, SuccBB, PredBB);  in TryTailMergeBlocks()
946         if (MBB == PredBB) {  in TryTailMergeBlocks()
956         (SameTails[commonTailIndex].getBlock() == PredBB &&  in TryTailMergeBlocks()
960       if (!CreateCommonTailOnlyBlock(PredBB, SuccBB,  in TryTailMergeBlocks()
962         RemoveBlocksWithHash(CurHash, SuccBB, PredBB);  in TryTailMergeBlocks()
1047     MachineBasicBlock *PredBB = &*std::prev(I);  in TailMergeBlocks()  local
1132       MadeChange |= TryTailMergeBlocks(IBB, PredBB, MinCommonTailLength);  in TailMergeBlocks()
1136     PredBB = &*std::prev(I); // this may have been changed in TryTailMergeBlocks  in TailMergeBlocks()
1138         MergePotentials.begin()->getBlock() != PredBB)  in TailMergeBlocks()
1307   for (MachineBasicBlock *PredBB : MBB.predecessors())  in salvageDebugInfoFromEmptyBlock()
1308     if (PredBB->succ_size() == 1)  in salvageDebugInfoFromEmptyBlock()
1309       copyDebugInfoToPredecessor(TII, MBB, *PredBB);  in salvageDebugInfoFromEmptyBlock()
1667       for (MachineBasicBlock *PredBB : MBB->predecessors()) {  in OptimizeBlock()
1671         if (PredBB != MBB && !PredBB->canFallThrough() &&  in OptimizeBlock()
1672             !TII->analyzeBranch(*PredBB, PredTBB, PredFBB, PredCond, true) &&  in OptimizeBlock()
1675             (!CurFallsThru || MBB->getNumber() >= PredBB->getNumber())) {  in OptimizeBlock()
1691           MBB->moveAfter(PredBB);  in OptimizeBlock()