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Lines Matching defs:PBB

939   // Look at blocks (IBB) with multiple predecessors (PBB).
968       MachineBasicBlock *PBB = *P;
969       if (TriedMerging.count(PBB))
973       if (PBB == IBB)
977       if (!UniquePreds.insert(PBB).second)
981       if (PBB->getLandingPadSuccessor())
986       if (!TII->AnalyzeBranch(*PBB, TBB, FBB, Cond, true)) {
995             FBB = std::next(MachineFunction::iterator(PBB));
998         // Failing case: the only way IBB can be reached from PBB is via
1002           MachineFunction::iterator IP = PBB;  IP++;
1024           TII->RemoveBranch(*PBB);
1027             TII->InsertBranch(*PBB, (TBB == IBB) ? FBB : TBB, nullptr,
1031         MergePotentials.push_back(MergePotentialsElt(HashEndOfMBB(PBB), *P));