249                               MachineBasicBlock *SuccToSinkTo,
1045                                           MachineBasicBlock *SuccToSinkTo,  in isProfitableToSinkTo()  argument
1047   assert (SuccToSinkTo && "Invalid SinkTo Candidate BB");  in isProfitableToSinkTo()
1049   if (MBB == SuccToSinkTo)  in isProfitableToSinkTo()
1053   if (!PDT->dominates(SuccToSinkTo, MBB))  in isProfitableToSinkTo()
1058   if (CI->getCycleDepth(MBB) > CI->getCycleDepth(SuccToSinkTo))  in isProfitableToSinkTo()
1065     if (UseBlock == SuccToSinkTo && !UseInst.isPHI())  in isProfitableToSinkTo()
1076           FindSuccToSinkTo(MI, SuccToSinkTo, BreakPHIEdge, AllSuccessors))  in isProfitableToSinkTo()
1077     return isProfitableToSinkTo(Reg, MI, SuccToSinkTo, MBB2, AllSuccessors);  in isProfitableToSinkTo()
1107       if (!AllUsesDominatedByBlock(Reg, SuccToSinkTo, MBB, BreakPHIEdge,  in isProfitableToSinkTo()
1126                                           *SuccToSinkTo)) {  in isProfitableToSinkTo()
1193   MachineBasicBlock *SuccToSinkTo = nullptr;  in FindSuccToSinkTo()  local
1221       if (SuccToSinkTo) {  in FindSuccToSinkTo()
1225         if (!AllUsesDominatedByBlock(Reg, SuccToSinkTo, MBB,  in FindSuccToSinkTo()
1241           SuccToSinkTo = SuccBlock;  in FindSuccToSinkTo()
1250       if (!SuccToSinkTo)  in FindSuccToSinkTo()
1252       if (!isProfitableToSinkTo(Reg, MI, MBB, SuccToSinkTo, AllSuccessors))  in FindSuccToSinkTo()
1259   if (MBB == SuccToSinkTo)  in FindSuccToSinkTo()
1264   if (SuccToSinkTo && SuccToSinkTo->isEHPad())  in FindSuccToSinkTo()
1271   if (SuccToSinkTo && SuccToSinkTo->isInlineAsmBrIndirectTarget())  in FindSuccToSinkTo()
1274   if (SuccToSinkTo && !TII->isSafeToSink(MI, SuccToSinkTo, CI))  in FindSuccToSinkTo()
1277   return SuccToSinkTo;  in FindSuccToSinkTo()
1384 static void performSink(MachineInstr &MI, MachineBasicBlock &SuccToSinkTo,  in performSink()  argument
1390   if (!SuccToSinkTo.empty() && InsertPos != SuccToSinkTo.end())  in performSink()
1398   SuccToSinkTo.splice(InsertPos, ParentBlock, MI,  in performSink()
1408     SuccToSinkTo.insert(InsertPos, NewDbgMI);  in performSink()
1627   MachineBasicBlock *SuccToSinkTo =  in SinkInstruction()  local
1631   if (!SuccToSinkTo)  in SinkInstruction()
1641     if (SuccToSinkTo->isLiveIn(Reg))  in SinkInstruction()
1645   LLVM_DEBUG(dbgs() << "Sink instr " << MI << "\tinto block " << *SuccToSinkTo);  in SinkInstruction()
1649   if (SuccToSinkTo->pred_size() > 1) {  in SinkInstruction()
1654         MI.mayLoad() ? hasStoreBetween(ParentBlock, SuccToSinkTo, MI) : true;  in SinkInstruction()
1662     if (!TryBreak && !DT->dominates(ParentBlock, SuccToSinkTo)) {  in SinkInstruction()
1668     if (!TryBreak && CI->getCycle(SuccToSinkTo) &&  in SinkInstruction()
1669         (!CI->getCycle(SuccToSinkTo)->isReducible() ||  in SinkInstruction()
1670          CI->getCycle(SuccToSinkTo)->getHeader() == SuccToSinkTo)) {  in SinkInstruction()
1683         PostponeSplitCriticalEdge(MI, ParentBlock, SuccToSinkTo, BreakPHIEdge);  in SinkInstruction()
1697                                             SuccToSinkTo, BreakPHIEdge);  in SinkInstruction()
1707       SuccToSinkTo->SkipPHIsAndLabels(SuccToSinkTo->begin());  in SinkInstruction()
1708   if (blockPrologueInterferes(SuccToSinkTo, InsertPos, MI, TRI, TII, MRI)) {  in SinkInstruction()
1741     SalvageUnsunkDebugUsersOfCopy(MI, SuccToSinkTo);  in SinkInstruction()
1743   performSink(MI, *SuccToSinkTo, InsertPos, DbgUsersToSink);  in SinkInstruction()