135                               MachineBasicBlock *SuccToSinkTo,
498                                           MachineBasicBlock *SuccToSinkTo,  in isProfitableToSinkTo()  argument
501   assert (SuccToSinkTo && "Invalid SinkTo Candidate BB");  in isProfitableToSinkTo()
503   if (MBB == SuccToSinkTo)  in isProfitableToSinkTo()
507   if (!PDT->dominates(SuccToSinkTo, MBB))  in isProfitableToSinkTo()
512   if (LI->getLoopDepth(MBB) > LI->getLoopDepth(SuccToSinkTo))  in isProfitableToSinkTo()
519     if (UseBlock == SuccToSinkTo && !UseInst.isPHI())  in isProfitableToSinkTo()
530           FindSuccToSinkTo(MI, SuccToSinkTo, BreakPHIEdge, AllSuccessors))  in isProfitableToSinkTo()
531     return isProfitableToSinkTo(Reg, MI, SuccToSinkTo, MBB2, AllSuccessors);  in isProfitableToSinkTo()
598   MachineBasicBlock *SuccToSinkTo = nullptr;  in FindSuccToSinkTo()  local
627       if (SuccToSinkTo) {  in FindSuccToSinkTo()
631         if (!AllUsesDominatedByBlock(Reg, SuccToSinkTo, MBB,  in FindSuccToSinkTo()
647           SuccToSinkTo = SuccBlock;  in FindSuccToSinkTo()
656       if (!SuccToSinkTo)  in FindSuccToSinkTo()
658       if (!isProfitableToSinkTo(Reg, MI, MBB, SuccToSinkTo, AllSuccessors))  in FindSuccToSinkTo()
665   if (MBB == SuccToSinkTo)  in FindSuccToSinkTo()
670   if (SuccToSinkTo && SuccToSinkTo->isEHPad())  in FindSuccToSinkTo()
673   return SuccToSinkTo;  in FindSuccToSinkTo()
704   MachineBasicBlock *SuccToSinkTo =  in SinkInstruction()  local
708   if (!SuccToSinkTo)  in SinkInstruction()
720     if (SuccToSinkTo->isLiveIn(Reg))  in SinkInstruction()
724   DEBUG(dbgs() << "Sink instr " << *MI << "\tinto block " << *SuccToSinkTo);  in SinkInstruction()
728   if (SuccToSinkTo->pred_size() > 1) {  in SinkInstruction()
740     if (!TryBreak && !DT->dominates(ParentBlock, SuccToSinkTo)) {  in SinkInstruction()
746     if (!TryBreak && LI->isLoopHeader(SuccToSinkTo)) {  in SinkInstruction()
759         PostponeSplitCriticalEdge(MI, ParentBlock, SuccToSinkTo, BreakPHIEdge);  in SinkInstruction()
773                                             SuccToSinkTo, BreakPHIEdge);  in SinkInstruction()
782   MachineBasicBlock::iterator InsertPos = SuccToSinkTo->begin();  in SinkInstruction()
783   while (InsertPos != SuccToSinkTo->end() && InsertPos->isPHI())  in SinkInstruction()
791   SuccToSinkTo->splice(InsertPos, ParentBlock, MI,  in SinkInstruction()
798     SuccToSinkTo->splice(InsertPos, ParentBlock,  DbgMI,  in SinkInstruction()