1122     MachineBasicBlock *IBB = &*I;  in TailMergeBlocks()  local
1138       ML = MLI->getLoopFor(IBB);  in TailMergeBlocks()
1139       if (ML && IBB == ML->getHeader())  in TailMergeBlocks()
1151       if (PBB == IBB)  in TailMergeBlocks()
1175         if (!Cond.empty() && TBB == IBB) {  in TailMergeBlocks()
1189         if (IBB->isEHPad()) {  in TailMergeBlocks()
1195             if (IBB != PredNextBB)      // fallthrough  in TailMergeBlocks()
1198             if (TBB != IBB && FBB != IBB)   // cbr then ubr  in TailMergeBlocks()
1201             if (TBB != IBB)               // ubr  in TailMergeBlocks()
1204             if (TBB != IBB && IBB != PredNextBB)  // cbr  in TailMergeBlocks()
1215             TII->insertBranch(*PBB, (TBB == IBB) ? FBB : TBB, nullptr,  in TailMergeBlocks()
1230       MadeChange |= TryTailMergeBlocks(IBB, PredBB, MinCommonTailLength);  in TailMergeBlocks()
1237       FixTail(MergePotentials.begin()->getBlock(), IBB, TII);  in TailMergeBlocks()