996     MachineBasicBlock *IBB = &*I;  in TailMergeBlocks()  local
1007       if (PBB == IBB)  in TailMergeBlocks()
1025         if (MachineLoop *ML = MLI->getLoopFor(IBB))  in TailMergeBlocks()
1026           if (IBB == ML->getHeader() && ML == MLI->getLoopFor(PBB))  in TailMergeBlocks()
1035         if (!Cond.empty() && TBB == IBB) {  in TailMergeBlocks()
1049         if (IBB->isEHPad()) {  in TailMergeBlocks()
1055             if (IBB != PredNextBB)      // fallthrough  in TailMergeBlocks()
1058             if (TBB != IBB && FBB != IBB)   // cbr then ubr  in TailMergeBlocks()
1061             if (TBB != IBB)               // ubr  in TailMergeBlocks()
1064             if (TBB != IBB && IBB != PredNextBB)  // cbr  in TailMergeBlocks()
1075             TII->InsertBranch(*PBB, (TBB == IBB) ? FBB : TBB, nullptr,  in TailMergeBlocks()
1090       MadeChange |= TryTailMergeBlocks(IBB, PredBB);  in TailMergeBlocks()
1097       FixTail(MergePotentials.begin()->getBlock(), IBB, TII);  in TailMergeBlocks()