1275   MachineBasicBlock &PrevBB = *std::prev(MachineFunction::iterator(MBB));  in OptimizeBlock()  local
1280       TII->analyzeBranch(PrevBB, PriorTBB, PriorFBB, PriorCond, true);  in OptimizeBlock()
1283     MadeChange |= PrevBB.CorrectExtraCFGEdges(PriorTBB, PriorFBB,  in OptimizeBlock()
1290       DebugLoc dl = getBranchDebugLoc(PrevBB);  in OptimizeBlock()
1291       TII->RemoveBranch(PrevBB);  in OptimizeBlock()
1294         TII->InsertBranch(PrevBB, PriorTBB, nullptr, PriorCond, dl);  in OptimizeBlock()
1308         PrevBB.succ_size() == 1 &&  in OptimizeBlock()
1310       DEBUG(dbgs() << "\nMerging into block: " << PrevBB  in OptimizeBlock()
1313       if (PrevBB.begin() != PrevBB.end()) {  in OptimizeBlock()
1314         MachineBasicBlock::iterator PrevBBIter = PrevBB.end();  in OptimizeBlock()
1319         while (PrevBBIter != PrevBB.begin() && MBBIter != MBB->end()  in OptimizeBlock()
1328       PrevBB.splice(PrevBB.end(), MBB, MBB->begin(), MBB->end());  in OptimizeBlock()
1329       PrevBB.removeSuccessor(PrevBB.succ_begin());  in OptimizeBlock()
1330       assert(PrevBB.succ_empty());  in OptimizeBlock()
1331       PrevBB.transferSuccessors(MBB);  in OptimizeBlock()
1339       TII->RemoveBranch(PrevBB);  in OptimizeBlock()
1348       DebugLoc dl = getBranchDebugLoc(PrevBB);  in OptimizeBlock()
1349       TII->RemoveBranch(PrevBB);  in OptimizeBlock()
1350       TII->InsertBranch(PrevBB, PriorTBB, nullptr, PriorCond, dl);  in OptimizeBlock()
1362         DebugLoc dl = getBranchDebugLoc(PrevBB);  in OptimizeBlock()
1363         TII->RemoveBranch(PrevBB);  in OptimizeBlock()
1364         TII->InsertBranch(PrevBB, PriorFBB, nullptr, NewPriorCond, dl);  in OptimizeBlock()
1400           DebugLoc dl = getBranchDebugLoc(PrevBB);  in OptimizeBlock()
1401           TII->RemoveBranch(PrevBB);  in OptimizeBlock()
1402           TII->InsertBranch(PrevBB, MBB, nullptr, NewPriorCond, dl);  in OptimizeBlock()
1464         bool PredHasNoFallThrough = !PrevBB.canFallThrough();  in OptimizeBlock()
1466             !PrevBB.isSuccessor(MBB)) {  in OptimizeBlock()
1469           if (!PredHasNoFallThrough && PrevBB.isSuccessor(MBB) &&  in OptimizeBlock()
1479             DebugLoc pdl = getBranchDebugLoc(PrevBB);  in OptimizeBlock()
1480             TII->RemoveBranch(PrevBB);  in OptimizeBlock()
1481             TII->InsertBranch(PrevBB, PriorTBB, PriorFBB, PriorCond, pdl);  in OptimizeBlock()
1535   if (!PrevBB.canFallThrough()) {  in OptimizeBlock()
1607           !TII->analyzeBranch(PrevBB, PrevTBB, PrevFBB, PrevCond, true) &&  in OptimizeBlock()
1608           PrevBB.isSuccessor(&*FallThrough)) {  in OptimizeBlock()