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()
382     MachineInstr *MI, MachineBasicBlock *TailBB, MachineBasicBlock *PredBB,  in duplicateInstruction()  argument
387     BuildMI(*PredBB, PredBB->end(), PredBB->findDebugLoc(PredBB->begin()),  in duplicateInstruction()
393   MachineInstr &NewMI = TII->duplicate(*PredBB, PredBB->end(), *MI);  in duplicateInstruction()
408           addSSAUpdateEntry(Reg, NewReg, PredBB);  in duplicateInstruction()
452             BuildMI(*PredBB, NewMI, NewMI.getDebugLoc(),  in duplicateInstruction()
707   for (MachineBasicBlock *PredBB : BB.predecessors()) {  in canCompletelyDuplicateBB()
708     if (PredBB->succ_size() > 1)  in canCompletelyDuplicateBB()
713     if (TII->analyzeBranch(*PredBB, PredTBB, PredFBB, PredCond))  in canCompletelyDuplicateBB()
729   for (MachineBasicBlock *PredBB : Preds) {  in duplicateSimpleBB()
730     if (PredBB->hasEHPadSuccessor() || PredBB->mayHaveInlineAsmBr())  in duplicateSimpleBB()
733     if (bothUsedInPHI(*PredBB, Succs))  in duplicateSimpleBB()
738     if (TII->analyzeBranch(*PredBB, PredTBB, PredFBB, PredCond))  in duplicateSimpleBB()
742     LLVM_DEBUG(dbgs() << "\nTail-duplicating into PredBB: " << *PredBB  in duplicateSimpleBB()
746     MachineBasicBlock *NextBB = PredBB->getNextNode();  in duplicateSimpleBB()
776     auto DL = PredBB->findBranchDebugLoc();  in duplicateSimpleBB()
777     TII->removeBranch(*PredBB);  in duplicateSimpleBB()
779     if (!PredBB->isSuccessor(NewTarget))  in duplicateSimpleBB()
780       PredBB->replaceSuccessor(TailBB, NewTarget);  in duplicateSimpleBB()
782       PredBB->removeSuccessor(TailBB, true);  in duplicateSimpleBB()
783       assert(PredBB->succ_size() <= 1);  in duplicateSimpleBB()
787       TII->insertBranch(*PredBB, PredTBB, PredFBB, PredCond, DL);  in duplicateSimpleBB()
789     TDBBs.push_back(PredBB);  in duplicateSimpleBB()
795                                       MachineBasicBlock *PredBB) {  in canTailDuplicate()  argument
797   if (PredBB->succ_size() > 1)  in canTailDuplicate()
802   if (TII->analyzeBranch(*PredBB, PredTBB, PredFBB, PredCond))  in canTailDuplicate()
854   for (MachineBasicBlock *PredBB : Preds) {  in tailDuplicate()
855     assert(TailBB != PredBB &&  in tailDuplicate()
858     if (!canTailDuplicate(TailBB, PredBB))  in tailDuplicate()
867         IsLayoutSuccessor = (ForcedLayoutPred == PredBB);  in tailDuplicate()
868       else if (PredBB->isLayoutSuccessor(TailBB) && PredBB->canFallThrough())  in tailDuplicate()
874     LLVM_DEBUG(dbgs() << "\nTail-duplicating into PredBB: " << *PredBB  in tailDuplicate()
877     TDBBs.push_back(PredBB);  in tailDuplicate()
880     TII->removeBranch(*PredBB);  in tailDuplicate()
889         processPHI(&MI, TailBB, PredBB, LocalVRMap, CopyInfos, UsedByPhi, true);  in tailDuplicate()
893         duplicateInstruction(&MI, TailBB, PredBB, LocalVRMap, UsedByPhi);  in tailDuplicate()
896     appendCopies(PredBB, CopyInfos, Copies);  in tailDuplicate()
901     PredBB->removeSuccessor(PredBB->succ_begin());  in tailDuplicate()
902     assert(PredBB->succ_empty() &&  in tailDuplicate()
905       PredBB->addSuccessor(Succ, MBPI->getEdgeProbability(TailBB, Succ));  in tailDuplicate()
909       PredBB->updateTerminator(TailBB->getNextNode());  in tailDuplicate()
1012   for (MachineBasicBlock *PredBB : Preds) {  in tailDuplicate()
1013     if (is_contained(TDBBs, PredBB))  in tailDuplicate()
1017     if (PredBB->succ_size() != 1)  in tailDuplicate()
1026       processPHI(&MI, TailBB, PredBB, LocalVRMap, CopyInfos, UsedByPhi, false);  in tailDuplicate()
1028     appendCopies(PredBB, CopyInfos, Copies);  in tailDuplicate()