136                               MachineBasicBlock *SuccToSinkTo,
497                                           MachineBasicBlock *SuccToSinkTo,  in isProfitableToSinkTo()  argument
499   assert (SuccToSinkTo && "Invalid SinkTo Candidate BB");  in isProfitableToSinkTo()
501   if (MBB == SuccToSinkTo)  in isProfitableToSinkTo()
505   if (!PDT->dominates(SuccToSinkTo, MBB))  in isProfitableToSinkTo()
510   if (LI->getLoopDepth(MBB) > LI->getLoopDepth(SuccToSinkTo))  in isProfitableToSinkTo()
517     if (UseBlock == SuccToSinkTo && !UseInst.isPHI())  in isProfitableToSinkTo()
528           FindSuccToSinkTo(MI, SuccToSinkTo, BreakPHIEdge, AllSuccessors))  in isProfitableToSinkTo()
529     return isProfitableToSinkTo(Reg, MI, SuccToSinkTo, MBB2, AllSuccessors);  in isProfitableToSinkTo()
594   MachineBasicBlock *SuccToSinkTo = nullptr;  in FindSuccToSinkTo()  local
623       if (SuccToSinkTo) {  in FindSuccToSinkTo()
627         if (!AllUsesDominatedByBlock(Reg, SuccToSinkTo, MBB,  in FindSuccToSinkTo()
643           SuccToSinkTo = SuccBlock;  in FindSuccToSinkTo()
652       if (!SuccToSinkTo)  in FindSuccToSinkTo()
654       if (!isProfitableToSinkTo(Reg, MI, MBB, SuccToSinkTo, AllSuccessors))  in FindSuccToSinkTo()
661   if (MBB == SuccToSinkTo)  in FindSuccToSinkTo()
666   if (SuccToSinkTo && SuccToSinkTo->isEHPad())  in FindSuccToSinkTo()
669   return SuccToSinkTo;  in FindSuccToSinkTo()
748   MachineBasicBlock *SuccToSinkTo =  in SinkInstruction()  local
752   if (!SuccToSinkTo)  in SinkInstruction()
764     if (SuccToSinkTo->isLiveIn(Reg))  in SinkInstruction()
768   DEBUG(dbgs() << "Sink instr " << MI << "\tinto block " << *SuccToSinkTo);  in SinkInstruction()
772   if (SuccToSinkTo->pred_size() > 1) {  in SinkInstruction()
784     if (!TryBreak && !DT->dominates(ParentBlock, SuccToSinkTo)) {  in SinkInstruction()
790     if (!TryBreak && LI->isLoopHeader(SuccToSinkTo)) {  in SinkInstruction()
803         PostponeSplitCriticalEdge(MI, ParentBlock, SuccToSinkTo, BreakPHIEdge);  in SinkInstruction()
817                                             SuccToSinkTo, BreakPHIEdge);  in SinkInstruction()
826   MachineBasicBlock::iterator InsertPos = SuccToSinkTo->begin();  in SinkInstruction()
827   while (InsertPos != SuccToSinkTo->end() && InsertPos->isPHI())  in SinkInstruction()
835   SuccToSinkTo->splice(InsertPos, ParentBlock, MI,  in SinkInstruction()
842     SuccToSinkTo->splice(InsertPos, ParentBlock,  DbgMI,  in SinkInstruction()