91   MachineBasicBlock *Tail;  member in __anon9f98c04f0111::SSAIfConv
101   bool isTriangle() const { return TBB == Tail || FBB == Tail; }  in isTriangle()
104   MachineBasicBlock *getTPred() const { return TBB == Tail ? Head : TBB; }  in getTPred()
107   MachineBasicBlock *getFPred() const { return FBB == Tail ? Head : FBB; }  in getFPred()
342   TBB = FBB = Tail = nullptr;  in canConvertIf()
356   Tail = Succ0->succ_begin()[0];  in canConvertIf()
359   if (Tail != Succ1) {  in canConvertIf()
362         Succ1->succ_begin()[0] != Tail)  in canConvertIf()
367                  << " -> BB#" << Tail->getNumber() << '\n');  in canConvertIf()
370     if (!Tail->livein_empty()) {  in canConvertIf()
377                  << " -> BB#" << Tail->getNumber() << '\n');  in canConvertIf()
382   if (Tail->empty() || !Tail->front().isPHI()) {  in canConvertIf()
408   for (MachineBasicBlock::iterator I = Tail->begin(), E = Tail->end();  in canConvertIf()
433   if (TBB != Tail && !canSpeculateInstrs(TBB))  in canConvertIf()
435   if (FBB != Tail && !canSpeculateInstrs(FBB))  in canConvertIf()
454   assert(Tail->pred_size() == 2 && "Cannot replace PHIs");  in replacePHIInstrs()
518   assert(Head && Tail && TBB && FBB && "Call canConvertIf first.");  in convertIf()
527   if (TBB != Tail)  in convertIf()
529   if (FBB != Tail)  in convertIf()
533   bool ExtraPreds = Tail->pred_size() != 2;  in convertIf()
542   if (TBB != Tail)  in convertIf()
543     TBB->removeSuccessor(Tail, true);  in convertIf()
544   if (FBB != Tail)  in convertIf()
545     FBB->removeSuccessor(Tail, true);  in convertIf()
554   if (TBB != Tail) {  in convertIf()
558   if (FBB != Tail) {  in convertIf()
564   if (!ExtraPreds && Head->isLayoutSuccessor(Tail)) {  in convertIf()
566     DEBUG(dbgs() << "Joining tail BB#" << Tail->getNumber()  in convertIf()
568     Head->splice(Head->end(), Tail,  in convertIf()
569                      Tail->begin(), Tail->end());  in convertIf()
570     Head->transferSuccessorsAndUpdatePHIs(Tail);  in convertIf()
571     RemovedBlocks.push_back(Tail);  in convertIf()
572     Tail->eraseFromParent();  in convertIf()
577     TII->InsertBranch(*Head, Tail, nullptr, EmptyCond, HeadDL);  in convertIf()
578     Head->addSuccessor(Tail);  in convertIf()
648       assert(Node->getBlock() == IfConv.Tail && "Unexpected children");  in updateDomTree()
669   Traces->invalidate(IfConv.Tail);  in invalidateTraces()
706   if (IfConv.TBB != IfConv.Tail)  in shouldConvertIf()
726   MachineTraceMetrics::Trace TailTrace = MinInstr->getTrace(IfConv.Tail);  in shouldConvertIf()