1071     for (MachineBasicBlock *PBB : I->predecessors()) {  in TailMergeBlocks()
1075       if (TriedMerging.count(PBB))  in TailMergeBlocks()
1079       if (PBB == IBB)  in TailMergeBlocks()
1083       if (!UniquePreds.insert(PBB).second)  in TailMergeBlocks()
1088       if (PBB->hasEHPadSuccessor() || PBB->mayHaveInlineAsmBr())  in TailMergeBlocks()
1095         if (ML != MLI->getLoopFor(PBB))  in TailMergeBlocks()
1100       if (!TII->analyzeBranch(*PBB, TBB, FBB, Cond, true)) {  in TailMergeBlocks()
1109             auto Next = ++PBB->getIterator();  in TailMergeBlocks()
1117           DebugLoc dl = PBB->findBranchDebugLoc();  in TailMergeBlocks()
1118           TII->removeBranch(*PBB);  in TailMergeBlocks()
1121             TII->insertBranch(*PBB, (TBB == IBB) ? FBB : TBB, nullptr,  in TailMergeBlocks()
1125         MergePotentials.push_back(MergePotentialsElt(HashEndOfMBB(*PBB), PBB));  in TailMergeBlocks()