93   MachineBasicBlock *Tail;  member in __anonae2cbf7d0111::SSAIfConv
103   bool isTriangle() const { return TBB == Tail || FBB == Tail; }  in isTriangle()
106   MachineBasicBlock *getTPred() const { return TBB == Tail ? Head : TBB; }  in getTPred()
109   MachineBasicBlock *getFPred() const { return FBB == Tail ? Head : FBB; }  in getFPred()
437   TBB = FBB = Tail = nullptr;  in canConvertIf()
451   Tail = Succ0->succ_begin()[0];  in canConvertIf()
454   if (Tail != Succ1) {  in canConvertIf()
457         Succ1->succ_begin()[0] != Tail)  in canConvertIf()
462                       << printMBBReference(*Tail) << '\n');  in canConvertIf()
465     if (!Tail->livein_empty()) {  in canConvertIf()
472                       << printMBBReference(*Tail) << '\n');  in canConvertIf()
478   if (!Predicate && (Tail->empty() || !Tail->front().isPHI())) {  in canConvertIf()
511   for (MachineBasicBlock::iterator I = Tail->begin(), E = Tail->end();  in canConvertIf()
538     if (TBB != Tail && !canPredicateInstrs(TBB))  in canConvertIf()
540     if (FBB != Tail && !canPredicateInstrs(FBB))  in canConvertIf()
543     if (TBB != Tail && !canSpeculateInstrs(TBB))  in canConvertIf()
545     if (FBB != Tail && !canSpeculateInstrs(FBB))  in canConvertIf()
565   assert(Tail->pred_size() == 2 && "Cannot replace PHIs");  in replacePHIInstrs()
630   assert(Head && Tail && TBB && FBB && "Call canConvertIf first.");  in convertIf()
639   if (TBB != Tail) {  in convertIf()
644   if (FBB != Tail) {  in convertIf()
650   bool ExtraPreds = Tail->pred_size() != 2;  in convertIf()
659   if (TBB != Tail)  in convertIf()
660     TBB->removeSuccessor(Tail, true);  in convertIf()
661   if (FBB != Tail)  in convertIf()
662     FBB->removeSuccessor(Tail, true);  in convertIf()
671   if (TBB != Tail) {  in convertIf()
675   if (FBB != Tail) {  in convertIf()
681   if (!ExtraPreds && Head->isLayoutSuccessor(Tail)) {  in convertIf()
683     LLVM_DEBUG(dbgs() << "Joining tail " << printMBBReference(*Tail)  in convertIf()
685     Head->splice(Head->end(), Tail,  in convertIf()
686                      Tail->begin(), Tail->end());  in convertIf()
687     Head->transferSuccessorsAndUpdatePHIs(Tail);  in convertIf()
688     RemovedBlocks.push_back(Tail);  in convertIf()
689     Tail->eraseFromParent();  in convertIf()
694     TII->insertBranch(*Head, Tail, nullptr, EmptyCond, HeadDL);  in convertIf()
695     Head->addSuccessor(Tail);  in convertIf()
764       assert(Node->getBlock() == IfConv.Tail && "Unexpected children");  in updateDomTree()
787   Traces->invalidate(IfConv.Tail);  in invalidateTraces()
838   if (IfConv.TBB != IfConv.Tail)  in shouldConvertIf()
869   MachineTraceMetrics::Trace TailTrace = MinInstr->getTrace(IfConv.Tail);  in shouldConvertIf()
1079         (IfConv.TBB == IfConv.Tail) ? *IfConv.FBB : *IfConv.TBB;  in shouldConvertIf()