108       for (MachineBasicBlock *PredBB : Preds) {  in VerifyPHIs()
112           if (PHIBB == PredBB) {  in VerifyPHIs()
121                  << printMBBReference(*PredBB) << '\n';  in VerifyPHIs()
348     MachineInstr *MI, MachineBasicBlock *TailBB, MachineBasicBlock *PredBB,  in processPHI()  argument
353   unsigned SrcOpIdx = getPHISrcRegOpIdx(MI, PredBB);  in processPHI()
365     addSSAUpdateEntry(DefReg, NewDef, PredBB);  in processPHI()
380     MachineInstr *MI, MachineBasicBlock *TailBB, MachineBasicBlock *PredBB,  in duplicateInstruction()  argument
385     BuildMI(*PredBB, PredBB->end(), PredBB->findDebugLoc(PredBB->begin()),  in duplicateInstruction()
391   MachineInstr &NewMI = TII->duplicate(*PredBB, PredBB->end(), *MI);  in duplicateInstruction()
406           addSSAUpdateEntry(Reg, NewReg, PredBB);  in duplicateInstruction()
447             BuildMI(*PredBB, NewMI, NewMI.getDebugLoc(),  in duplicateInstruction()
702   for (MachineBasicBlock *PredBB : BB.predecessors()) {  in canCompletelyDuplicateBB()
703     if (PredBB->succ_size() > 1)  in canCompletelyDuplicateBB()
708     if (TII->analyzeBranch(*PredBB, PredTBB, PredFBB, PredCond))  in canCompletelyDuplicateBB()
725   for (MachineBasicBlock *PredBB : Preds) {  in duplicateSimpleBB()
726     if (PredBB->hasEHPadSuccessor() || PredBB->mayHaveInlineAsmBr())  in duplicateSimpleBB()
729     if (bothUsedInPHI(*PredBB, Succs))  in duplicateSimpleBB()
734     if (TII->analyzeBranch(*PredBB, PredTBB, PredFBB, PredCond))  in duplicateSimpleBB()
738     LLVM_DEBUG(dbgs() << "\nTail-duplicating into PredBB: " << *PredBB  in duplicateSimpleBB()
742     MachineBasicBlock *NextBB = PredBB->getNextNode();  in duplicateSimpleBB()
772     auto DL = PredBB->findBranchDebugLoc();  in duplicateSimpleBB()
773     TII->removeBranch(*PredBB);  in duplicateSimpleBB()
775     if (!PredBB->isSuccessor(NewTarget))  in duplicateSimpleBB()
776       PredBB->replaceSuccessor(TailBB, NewTarget);  in duplicateSimpleBB()
778       PredBB->removeSuccessor(TailBB, true);  in duplicateSimpleBB()
779       assert(PredBB->succ_size() <= 1);  in duplicateSimpleBB()
783       TII->insertBranch(*PredBB, PredTBB, PredFBB, PredCond, DL);  in duplicateSimpleBB()
785     TDBBs.push_back(PredBB);  in duplicateSimpleBB()
791                                       MachineBasicBlock *PredBB) {  in canTailDuplicate()  argument
793   if (PredBB->succ_size() > 1)  in canTailDuplicate()
798   if (TII->analyzeBranch(*PredBB, PredTBB, PredFBB, PredCond))  in canTailDuplicate()
841   for (MachineBasicBlock *PredBB : Preds) {  in tailDuplicate()
842     assert(TailBB != PredBB &&  in tailDuplicate()
845     if (!canTailDuplicate(TailBB, PredBB))  in tailDuplicate()
854         IsLayoutSuccessor = (ForcedLayoutPred == PredBB);  in tailDuplicate()
855       else if (PredBB->isLayoutSuccessor(TailBB) && PredBB->canFallThrough())  in tailDuplicate()
861     LLVM_DEBUG(dbgs() << "\nTail-duplicating into PredBB: " << *PredBB  in tailDuplicate()
864     TDBBs.push_back(PredBB);  in tailDuplicate()
867     TII->removeBranch(*PredBB);  in tailDuplicate()
876         processPHI(&MI, TailBB, PredBB, LocalVRMap, CopyInfos, UsedByPhi, true);  in tailDuplicate()
880         duplicateInstruction(&MI, TailBB, PredBB, LocalVRMap, UsedByPhi);  in tailDuplicate()
883     appendCopies(PredBB, CopyInfos, Copies);  in tailDuplicate()
888     PredBB->removeSuccessor(PredBB->succ_begin());  in tailDuplicate()
889     assert(PredBB->succ_empty() &&  in tailDuplicate()
892       PredBB->addSuccessor(Succ, MBPI->getEdgeProbability(TailBB, Succ));  in tailDuplicate()
896       PredBB->updateTerminator(TailBB->getNextNode());  in tailDuplicate()
999   for (MachineBasicBlock *PredBB : Preds) {  in tailDuplicate()
1000     if (is_contained(TDBBs, PredBB))  in tailDuplicate()
1004     if (PredBB->succ_size() != 1)  in tailDuplicate()
1015       processPHI(MI, TailBB, PredBB, LocalVRMap, CopyInfos, UsedByPhi, false);  in tailDuplicate()
1017     appendCopies(PredBB, CopyInfos, Copies);  in tailDuplicate()