203     BlockInfo BI;  in calcLiveBlockInfo()  local
204     BI.MBB = &*MFI;  in calcLiveBlockInfo()
206     std::tie(Start, Stop) = LIS.getSlotIndexes()->getMBBRange(BI.MBB);  in calcLiveBlockInfo()
213       ThroughBlocks.set(BI.MBB->getNumber());  in calcLiveBlockInfo()
220       BI.FirstInstr = *UseI;  in calcLiveBlockInfo()
221       assert(BI.FirstInstr >= Start);  in calcLiveBlockInfo()
224       BI.LastInstr = UseI[-1];  in calcLiveBlockInfo()
225       assert(BI.LastInstr < Stop);  in calcLiveBlockInfo()
228       BI.LiveIn = LVI->start <= Start;  in calcLiveBlockInfo()
231       if (!BI.LiveIn) {  in calcLiveBlockInfo()
233         assert(LVI->start == BI.FirstInstr && "First instr should be a def");  in calcLiveBlockInfo()
234         BI.FirstDef = BI.FirstInstr;  in calcLiveBlockInfo()
238       BI.LiveOut = true;  in calcLiveBlockInfo()
242           BI.LiveOut = false;  in calcLiveBlockInfo()
243           BI.LastInstr = LastStop;  in calcLiveBlockInfo()
253           BI.LiveOut = false;  in calcLiveBlockInfo()
254           UseBlocks.push_back(BI);  in calcLiveBlockInfo()
258           BI.LiveIn = false;  in calcLiveBlockInfo()
259           BI.LiveOut = true;  in calcLiveBlockInfo()
260           BI.FirstInstr = BI.FirstDef = LVI->start;  in calcLiveBlockInfo()
265         if (!BI.FirstDef)  in calcLiveBlockInfo()
266           BI.FirstDef = LVI->start;  in calcLiveBlockInfo()
269       UseBlocks.push_back(BI);  in calcLiveBlockInfo()
1225 bool SplitAnalysis::shouldSplitSingleBlock(const BlockInfo &BI,  in shouldSplitSingleBlock()  argument
1228   if (!BI.isOneInstr())  in shouldSplitSingleBlock()
1234   if (BI.LiveIn && BI.LiveOut)  in shouldSplitSingleBlock()
1237   if (LIS.getInstructionFromIndex(BI.FirstInstr)->isCopyLike())  in shouldSplitSingleBlock()
1240   return isOriginalEndpoint(BI.FirstInstr);  in shouldSplitSingleBlock()
1243 void SplitEditor::splitSingleBlock(const SplitAnalysis::BlockInfo &BI) {  in splitSingleBlock()  argument
1245   SlotIndex LastSplitPoint = SA.getLastSplitPoint(BI.MBB->getNumber());  in splitSingleBlock()
1246   SlotIndex SegStart = enterIntvBefore(std::min(BI.FirstInstr,  in splitSingleBlock()
1248   if (!BI.LiveOut || BI.LastInstr < LastSplitPoint) {  in splitSingleBlock()
1249     useIntv(SegStart, leaveIntvAfter(BI.LastInstr));  in splitSingleBlock()
1254     overlapIntv(SegStop, BI.LastInstr);  in splitSingleBlock()
1374 void SplitEditor::splitRegInBlock(const SplitAnalysis::BlockInfo &BI,  in splitRegInBlock()  argument
1377   std::tie(Start, Stop) = LIS.getSlotIndexes()->getMBBRange(BI.MBB);  in splitRegInBlock()
1379   DEBUG(dbgs() << "BB#" << BI.MBB->getNumber() << " [" << Start << ';' << Stop  in splitRegInBlock()
1380                << "), uses " << BI.FirstInstr << '-' << BI.LastInstr  in splitRegInBlock()
1382                << (BI.LiveOut ? ", stack-out" : ", killed in block"));  in splitRegInBlock()
1385   assert(BI.LiveIn && "Must be live-in");  in splitRegInBlock()
1388   if (!BI.LiveOut && (!LeaveBefore || LeaveBefore >= BI.LastInstr)) {  in splitRegInBlock()
1396     useIntv(Start, BI.LastInstr);  in splitRegInBlock()
1400   SlotIndex LSP = SA.getLastSplitPoint(BI.MBB->getNumber());  in splitRegInBlock()
1402   if (!LeaveBefore || LeaveBefore > BI.LastInstr.getBoundaryIndex()) {  in splitRegInBlock()
1413     if (BI.LastInstr < LSP) {  in splitRegInBlock()
1416       SlotIndex Idx = leaveIntvAfter(BI.LastInstr);  in splitRegInBlock()
1423       overlapIntv(Idx, BI.LastInstr);  in splitRegInBlock()
1437   if (!BI.LiveOut || BI.LastInstr < LSP) {  in splitRegInBlock()
1443     SlotIndex To = leaveIntvAfter(BI.LastInstr);  in splitRegInBlock()
1458   overlapIntv(To, BI.LastInstr);  in splitRegInBlock()
1466 void SplitEditor::splitRegOutBlock(const SplitAnalysis::BlockInfo &BI,  in splitRegOutBlock()  argument
1469   std::tie(Start, Stop) = LIS.getSlotIndexes()->getMBBRange(BI.MBB);  in splitRegOutBlock()
1471   DEBUG(dbgs() << "BB#" << BI.MBB->getNumber() << " [" << Start << ';' << Stop  in splitRegOutBlock()
1472                << "), uses " << BI.FirstInstr << '-' << BI.LastInstr  in splitRegOutBlock()
1474                << (BI.LiveIn ? ", stack-in" : ", defined in block"));  in splitRegOutBlock()
1476   SlotIndex LSP = SA.getLastSplitPoint(BI.MBB->getNumber());  in splitRegOutBlock()
1479   assert(BI.LiveOut && "Must be live-out");  in splitRegOutBlock()
1482   if (!BI.LiveIn && (!EnterAfter || EnterAfter <= BI.FirstInstr)) {  in splitRegOutBlock()
1490     useIntv(BI.FirstInstr, Stop);  in splitRegOutBlock()
1494   if (!EnterAfter || EnterAfter < BI.FirstInstr.getBaseIndex()) {  in splitRegOutBlock()
1502     SlotIndex Idx = enterIntvBefore(std::min(LSP, BI.FirstInstr));  in splitRegOutBlock()
1523   SlotIndex From = enterIntvBefore(std::min(Idx, BI.FirstInstr));  in splitRegOutBlock()