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Lines Matching defs:PBB

835   // Look at blocks (IBB) with multiple predecessors (PBB).
864         MachineBasicBlock *PBB = *P;
865         if (TriedMerging.count(PBB))
868         if (PBB == IBB)
871         if (!UniquePreds.insert(PBB))
875 PBB, TBB, FBB, Cond, true)) {
884               FBB = llvm::next(MachineFunction::iterator(PBB));
886           // Failing case:  the only way IBB can be reached from PBB is via
890             MachineFunction::iterator IP = PBB;  IP++;
911             TII->RemoveBranch(*PBB);
914               TII->InsertBranch(*PBB, (TBB == IBB) ? FBB : TBB, 0, NewCond, dl);
916           MergePotentials.push_back(MergePotentialsElt(HashEndOfMBB(PBB), *P));