430   MachineBasicBlock *SuccToSinkTo = 0;  in SinkInstruction()  local
487       if (SuccToSinkTo) {  in SinkInstruction()
491         if (!AllUsesDominatedByBlock(Reg, SuccToSinkTo, ParentBlock,  in SinkInstruction()
505           SuccToSinkTo = *SI;  in SinkInstruction()
514       if (SuccToSinkTo == 0)  in SinkInstruction()
520   if (SuccToSinkTo == 0)  in SinkInstruction()
525   if (SuccToSinkTo->isLandingPad())  in SinkInstruction()
530   if (MI->getParent() == SuccToSinkTo)  in SinkInstruction()
541     if (SuccToSinkTo->isLiveIn(Reg))  in SinkInstruction()
545   DEBUG(dbgs() << "Sink instr " << *MI << "\tinto block " << *SuccToSinkTo);  in SinkInstruction()
550   if (SuccToSinkTo->pred_size() > 1) {  in SinkInstruction()
562     if (!TryBreak && !DT->dominates(ParentBlock, SuccToSinkTo)) {  in SinkInstruction()
568     if (!TryBreak && LI->isLoopHeader(SuccToSinkTo)) {  in SinkInstruction()
578         SplitCriticalEdge(MI, ParentBlock, SuccToSinkTo, BreakPHIEdge);  in SinkInstruction()
587               << " -- BB#" << SuccToSinkTo->getNumber() << '\n');  in SinkInstruction()
588         SuccToSinkTo = NewSucc;  in SinkInstruction()
600                                                    SuccToSinkTo, BreakPHIEdge);  in SinkInstruction()
610           << " -- BB#" << SuccToSinkTo->getNumber() << '\n');  in SinkInstruction()
611     SuccToSinkTo = NewSucc;  in SinkInstruction()
616   MachineBasicBlock::iterator InsertPos = SuccToSinkTo->begin();  in SinkInstruction()
617   while (InsertPos != SuccToSinkTo->end() && InsertPos->isPHI())  in SinkInstruction()
625   SuccToSinkTo->splice(InsertPos, ParentBlock, MI,  in SinkInstruction()
632     SuccToSinkTo->splice(InsertPos, ParentBlock,  DbgMI,  in SinkInstruction()