1377   MachineBasicBlock *PriorTBB = nullptr, *PriorFBB = nullptr;  in OptimizeBlock()  local
1380       TII->analyzeBranch(PrevBB, PriorTBB, PriorFBB, PriorCond, true);  in OptimizeBlock()
1385     if (PriorTBB && PriorTBB == PriorFBB) {  in OptimizeBlock()
1389       if (PriorTBB != MBB)  in OptimizeBlock()
1390         TII->insertBranch(PrevBB, PriorTBB, nullptr, PriorCond, dl);  in OptimizeBlock()
1403     if (PriorCond.empty() && !PriorTBB && MBB->pred_size() == 1 &&  in OptimizeBlock()
1434     if (PriorTBB == MBB && !PriorFBB) {  in OptimizeBlock()
1446       TII->insertBranch(PrevBB, PriorTBB, nullptr, PriorCond, dl);  in OptimizeBlock()
1455     if (PriorTBB == MBB) {  in OptimizeBlock()
1476         MachineFunction::iterator(PriorTBB) == FallThrough &&  in OptimizeBlock()
1486           !IsBetterFallthrough(PriorTBB, MBB))  in OptimizeBlock()
1494                             << "To make fallthrough to: " << *PriorTBB << "\n");  in OptimizeBlock()
1597               PriorTBB != MBB && PriorFBB != MBB) {  in OptimizeBlock()
1598             if (!PriorTBB) {  in OptimizeBlock()
1601               PriorTBB = MBB;  in OptimizeBlock()
1608             TII->insertBranch(PrevBB, PriorTBB, PriorFBB, PriorCond, pdl);  in OptimizeBlock()