188 bool LiveIntervals::computeVirtRegInterval(LiveInterval &LI) {  in computeVirtRegInterval()  argument
190   assert(LI.empty() && "Should only compute empty intervals.");  in computeVirtRegInterval()
192   LICalc->calculate(LI, MRI->shouldTrackSubRegLiveness(LI.reg()));  in computeVirtRegInterval()
193   return computeDeadValues(LI, nullptr);  in computeVirtRegInterval()
201     LiveInterval &LI = createEmptyInterval(Reg);  in computeVirtRegs()  local
202     bool NeedSplit = computeVirtRegInterval(LI);  in computeVirtRegs()
205       splitSeparateComponents(LI, SplitLIs);  in computeVirtRegs()
331     for (const auto &LI : MBB.liveins()) {  in computeLiveInRegUnits()  local
332       for (MCRegUnit Unit : TRI->regunits(LI.PhysReg)) {  in computeLiveInRegUnits()
384   const LiveInterval &LI = getInterval(Reg);  in extendSegmentsToUses()  local
385   const LiveRange &OldRange = getSubRange(LI, LaneMask);  in extendSegmentsToUses()
435         LI.computeSubRangeUndefs(Undefs, LaneMask, *MRI, *Indexes);  in extendSegmentsToUses()
502 bool LiveIntervals::computeDeadValues(LiveInterval &LI,  in computeDeadValues()  argument
506   for (VNInfo *VNI : LI.valnos) {  in computeDeadValues()
510     LiveRange::iterator I = LI.FindSegmentContaining(Def);  in computeDeadValues()
511     assert(I != LI.end() && "Missing segment for VNI");  in computeDeadValues()
515     Register VReg = LI.reg();  in computeDeadValues()
517       if ((I == LI.begin() || std::prev(I)->end < Def) && !VNI->isPHIDef()) {  in computeDeadValues()
528       LI.removeSegment(I);  in computeDeadValues()
534       MI->addRegisterDead(LI.reg(), TRI);  in computeDeadValues()
694     const LiveInterval &LI = getInterval(Reg);  in addKillFlags()  local
695     if (LI.empty())  in addKillFlags()
710       RU.push_back(std::make_pair(&RURange, RURange.find(LI.begin()->end)));  in addKillFlags()
714     for (LiveInterval::const_iterator RI = LI.begin(), RE = LI.end(); RI != RE;  in addKillFlags()
756         if (LI.hasSubRanges()) {  in addKillFlags()
759           for (const LiveInterval::SubRange &SR : LI.subranges())  in addKillFlags()
796           if (N != LI.end() && N->start == RI->end)  in addKillFlags()
810 LiveIntervals::intervalIsInOneMBB(const LiveInterval &LI) const {  in intervalIsInOneMBB()
811   assert(!LI.empty() && "LiveInterval is empty.");  in intervalIsInOneMBB()
820   SlotIndex Start = LI.beginIndex();  in intervalIsInOneMBB()
824   SlotIndex Stop = LI.endIndex();  in intervalIsInOneMBB()
836 LiveIntervals::hasPHIKill(const LiveInterval &LI, const VNInfo *VNI) const {  in hasPHIKill()  argument
837   for (const VNInfo *PHI : LI.valnos) {  in hasPHIKill()
845       if (VNI == LI.getVNInfoBefore(Indexes->getMBBEndIdx(Pred)))  in hasPHIKill()
897 bool LiveIntervals::checkRegMaskInterference(const LiveInterval &LI,  in checkRegMaskInterference()  argument
899   if (LI.empty())  in checkRegMaskInterference()
901   LiveInterval::const_iterator LiveI = LI.begin(), LiveE = LI.end();  in checkRegMaskInterference()
906   if (MachineBasicBlock *MBB = intervalIsInOneMBB(LI)) {  in checkRegMaskInterference()
947         if (hasLiveThroughUse(MI, LI.reg()))  in checkRegMaskInterference()
951     if (++LiveI == LiveE || SlotI == SlotE || *SlotI > LI.endIndex())  in checkRegMaskInterference()
1017         LiveInterval &LI = LIS.getInterval(Reg);  in updateAllRanges()  local
1018         if (LI.hasSubRanges()) {  in updateAllRanges()
1022           for (LiveInterval::SubRange &S : LI.subranges()) {  in updateAllRanges()
1028         updateRange(LI, Reg, LaneBitmask::getNone());  in updateAllRanges()
1035         if (LI.hasSubRanges()) {  in updateAllRanges()
1039           for (LiveInterval::SubRange &S : LI.subranges()) {  in updateAllRanges()
1040             if ((S.LaneMask & LaneMask).none() || LI.covers(S))  in updateAllRanges()
1042             LI.clear();  in updateAllRanges()
1043             LIS.constructMainRangeFromSubranges(LI);  in updateAllRanges()
1545       LiveInterval &LI = getInterval(Reg);  in handleMoveIntoNewBundle()  local
1546       LiveQueryResult LRQ = LI.Query(Index);  in handleMoveIntoNewBundle()
1689     LiveInterval &LI = getInterval(Reg);  in repairIntervalsInRange()  local
1691     if (!LI.hasAtLeastOneValue())  in repairIntervalsInRange()
1694     for (LiveInterval::SubRange &S : LI.subranges())  in repairIntervalsInRange()
1696     LI.removeEmptySubRanges();  in repairIntervalsInRange()
1698     repairOldRegInRange(Begin, End, EndIdx, LI, Reg);  in repairIntervalsInRange()
1710 void LiveIntervals::removeVRegDefAt(LiveInterval &LI, SlotIndex Pos) {  in removeVRegDefAt()  argument
1713   VNInfo *VNI = LI.getVNInfoAt(Pos);  in removeVRegDefAt()
1716     LI.removeValNo(VNI);  in removeVRegDefAt()
1720   for (LiveInterval::SubRange &S : LI.subranges()) {  in removeVRegDefAt()
1725   LI.removeEmptySubRanges();  in removeVRegDefAt()
1728 void LiveIntervals::splitSeparateComponents(LiveInterval &LI,  in splitSeparateComponents()  argument
1731   unsigned NumComp = ConEQ.Classify(LI);  in splitSeparateComponents()
1734   LLVM_DEBUG(dbgs() << "  Split " << NumComp << " components: " << LI << '\n');  in splitSeparateComponents()
1735   Register Reg = LI.reg();  in splitSeparateComponents()
1741   ConEQ.Distribute(LI, SplitLIs.data(), *MRI);  in splitSeparateComponents()
1744 void LiveIntervals::constructMainRangeFromSubranges(LiveInterval &LI) {  in constructMainRangeFromSubranges()  argument
1747   LICalc->constructMainRangeFromSubranges(LI);  in constructMainRangeFromSubranges()