119       for (MachineBasicBlock *PredBB : Preds) {  in VerifyPHIs()
123           if (PHIBB == PredBB) {  in VerifyPHIs()
132                  << printMBBReference(*PredBB) << '\n';  in VerifyPHIs()
357     MachineInstr *MI, MachineBasicBlock *TailBB, MachineBasicBlock *PredBB,  in processPHI()  argument
362   unsigned SrcOpIdx = getPHISrcRegOpIdx(MI, PredBB);  in processPHI()
374     addSSAUpdateEntry(DefReg, NewDef, PredBB);  in processPHI()
391     MachineInstr *MI, MachineBasicBlock *TailBB, MachineBasicBlock *PredBB,  in duplicateInstruction()  argument
396     BuildMI(*PredBB, PredBB->end(), PredBB->findDebugLoc(PredBB->begin()),  in duplicateInstruction()
402   MachineInstr &NewMI = TII->duplicate(*PredBB, PredBB->end(), *MI);  in duplicateInstruction()
417           addSSAUpdateEntry(Reg, NewReg, PredBB);  in duplicateInstruction()
461             BuildMI(*PredBB, NewMI, NewMI.getDebugLoc(),  in duplicateInstruction()
724   for (MachineBasicBlock *PredBB : BB.predecessors()) {  in canCompletelyDuplicateBB()
725     if (PredBB->succ_size() > 1)  in canCompletelyDuplicateBB()
730     if (TII->analyzeBranch(*PredBB, PredTBB, PredFBB, PredCond))  in canCompletelyDuplicateBB()
746   for (MachineBasicBlock *PredBB : Preds) {  in duplicateSimpleBB()
747     if (PredBB->hasEHPadSuccessor() || PredBB->mayHaveInlineAsmBr())  in duplicateSimpleBB()
750     if (bothUsedInPHI(*PredBB, Succs))  in duplicateSimpleBB()
755     if (TII->analyzeBranch(*PredBB, PredTBB, PredFBB, PredCond))  in duplicateSimpleBB()
759     LLVM_DEBUG(dbgs() << "\nTail-duplicating into PredBB: " << *PredBB  in duplicateSimpleBB()
763     MachineBasicBlock *NextBB = PredBB->getNextNode();  in duplicateSimpleBB()
793     auto DL = PredBB->findBranchDebugLoc();  in duplicateSimpleBB()
794     TII->removeBranch(*PredBB);  in duplicateSimpleBB()
796     if (!PredBB->isSuccessor(NewTarget))  in duplicateSimpleBB()
797       PredBB->replaceSuccessor(TailBB, NewTarget);  in duplicateSimpleBB()
799       PredBB->removeSuccessor(TailBB, true);  in duplicateSimpleBB()
800       assert(PredBB->succ_size() <= 1);  in duplicateSimpleBB()
804       TII->insertBranch(*PredBB, PredTBB, PredFBB, PredCond, DL);  in duplicateSimpleBB()
806     TDBBs.push_back(PredBB);  in duplicateSimpleBB()
812                                       MachineBasicBlock *PredBB) {  in canTailDuplicate()  argument
814   if (PredBB->succ_size() > 1)  in canTailDuplicate()
819   if (TII->analyzeBranch(*PredBB, PredTBB, PredFBB, PredCond))  in canTailDuplicate()
871   for (MachineBasicBlock *PredBB : Preds) {  in tailDuplicate()
872     assert(TailBB != PredBB &&  in tailDuplicate()
875     if (!canTailDuplicate(TailBB, PredBB))  in tailDuplicate()
884         IsLayoutSuccessor = (ForcedLayoutPred == PredBB);  in tailDuplicate()
885       else if (PredBB->isLayoutSuccessor(TailBB) && PredBB->canFallThrough())  in tailDuplicate()
891     LLVM_DEBUG(dbgs() << "\nTail-duplicating into PredBB: " << *PredBB  in tailDuplicate()
894     TDBBs.push_back(PredBB);  in tailDuplicate()
897     TII->removeBranch(*PredBB);  in tailDuplicate()
906         processPHI(&MI, TailBB, PredBB, LocalVRMap, CopyInfos, UsedByPhi, true);  in tailDuplicate()
910         duplicateInstruction(&MI, TailBB, PredBB, LocalVRMap, UsedByPhi);  in tailDuplicate()
913     appendCopies(PredBB, CopyInfos, Copies);  in tailDuplicate()
918     PredBB->removeSuccessor(PredBB->succ_begin());  in tailDuplicate()
919     assert(PredBB->succ_empty() &&  in tailDuplicate()
922       PredBB->addSuccessor(Succ, MBPI->getEdgeProbability(TailBB, Succ));  in tailDuplicate()
926       PredBB->updateTerminator(TailBB->getNextNode());  in tailDuplicate()
1029   for (MachineBasicBlock *PredBB : Preds) {  in tailDuplicate()
1030     if (is_contained(TDBBs, PredBB))  in tailDuplicate()
1034     if (PredBB->succ_size() != 1)  in tailDuplicate()
1043       processPHI(&MI, TailBB, PredBB, LocalVRMap, CopyInfos, UsedByPhi, false);  in tailDuplicate()
1045     appendCopies(PredBB, CopyInfos, Copies);  in tailDuplicate()