280     bool hasOtherReachingDefs(LiveInterval &IntA, LiveInterval &IntB,
622   LiveInterval &IntB =  in adjustCopiesBackFrom()  local
642   LiveInterval::iterator BS = IntB.FindSegmentContaining(CopyIdx);  in adjustCopiesBackFrom()
643   if (BS == IntB.end()) return false;  in adjustCopiesBackFrom()
667     IntB.FindSegmentContaining(AValNo->def.getPrevSlot());  in adjustCopiesBackFrom()
668   if (ValS == IntB.end())  in adjustCopiesBackFrom()
683   LLVM_DEBUG(dbgs() << "Extending: " << printReg(IntB.reg(), TRI));  in adjustCopiesBackFrom()
694   IntB.addSegment(LiveInterval::Segment(FillerStart, FillerEnd, BValNo));  in adjustCopiesBackFrom()
698     IntB.MergeValueNumberInto(BValNo, ValS->valno);  in adjustCopiesBackFrom()
701   for (LiveInterval::SubRange &S : IntB.subranges()) {  in adjustCopiesBackFrom()
722   LLVM_DEBUG(dbgs() << "   result = " << IntB << '\n');  in adjustCopiesBackFrom()
726   int UIdx = ValSEndInst->findRegisterUseOperandIdx(IntB.reg(), true);  in adjustCopiesBackFrom()
732   CopyMI->substituteRegister(IntA.reg(), IntB.reg(), 0, *TRI);  in adjustCopiesBackFrom()
753                                              LiveInterval &IntB,  in hasOtherReachingDefs()  argument
763     LiveInterval::iterator BI = llvm::upper_bound(IntB, ASeg.start);  in hasOtherReachingDefs()
764     if (BI != IntB.begin())  in hasOtherReachingDefs()
766     for (; BI != IntB.end() && ASeg.end >= BI->start; ++BI) {  in hasOtherReachingDefs()
810   LiveInterval &IntB =  in removeCopyByCommutingDef()  local
836   VNInfo *BValNo = IntB.getVNInfoAt(CopyIdx);  in removeCopyByCommutingDef()
872   if (NewReg != IntB.reg() || !IntB.Query(AValNo->def).isKill())  in removeCopyByCommutingDef()
877   if (hasOtherReachingDefs(IntA, IntB, AValNo, BValNo))  in removeCopyByCommutingDef()
904   if (IntA.reg().isVirtual() && IntB.reg().isVirtual() &&  in removeCopyByCommutingDef()
905       !MRI->constrainRegClass(IntB.reg(), MRI->getRegClass(IntA.reg())))  in removeCopyByCommutingDef()
950     if (UseMI->getOperand(0).getReg() != IntB.reg() ||  in removeCopyByCommutingDef()
957     VNInfo *DVNI = IntB.getVNInfoAt(DefIdx);  in removeCopyByCommutingDef()
962     BValNo = IntB.MergeValueNumberInto(DVNI, BValNo);  in removeCopyByCommutingDef()
963     for (LiveInterval::SubRange &S : IntB.subranges()) {  in removeCopyByCommutingDef()
979   if (IntA.hasSubRanges() || IntB.hasSubRanges()) {  in removeCopyByCommutingDef()
983     } else if (!IntB.hasSubRanges()) {  in removeCopyByCommutingDef()
984       LaneBitmask Mask = MRI->getMaxLaneMaskForVReg(IntB.reg());  in removeCopyByCommutingDef()
985       IntB.createSubRangeFrom(Allocator, Mask, IntB);  in removeCopyByCommutingDef()
1002       IntB.refineSubRanges(  in removeCopyByCommutingDef()
1019     for (LiveInterval::SubRange &SB : IntB.subranges()) {  in removeCopyByCommutingDef()
1029   auto P = addSegmentsWithValNo(IntB, BValNo, IntA, AValNo);  in removeCopyByCommutingDef()
1031   LLVM_DEBUG(dbgs() << "\t\textended: " << IntB << '\n');  in removeCopyByCommutingDef()
1104   LiveInterval &IntB =  in removePartialRedundancy()  local
1115   if (IntB.overlaps(LIS->getMBBStartIdx(&MBB), CopyIdx))  in removePartialRedundancy()
1131         DefMI->getOperand(1).getReg() != IntB.reg() ||  in removePartialRedundancy()
1140     for (auto *VNI : IntB.valnos) {  in removePartialRedundancy()
1179       if (IntB.overlaps(InsPosIdx, LIS->getMBBEndIdx(CopyLeftBB)))  in removePartialRedundancy()
1188                                       TII->get(TargetOpcode::COPY), IntB.reg())  in removePartialRedundancy()
1192     IntB.createDeadDef(NewCopyIdx, LIS->getVNInfoAllocator());  in removePartialRedundancy()
1193     for (LiveInterval::SubRange &SR : IntB.subranges())  in removePartialRedundancy()
1216   VNInfo *BValNo = IntB.Query(CopyIdx).valueOutOrDead();  in removePartialRedundancy()
1217   LIS->pruneValue(*static_cast<LiveRange *>(&IntB), CopyIdx.getRegSlot(),  in removePartialRedundancy()
1225     for (MachineOperand &MO : MRI->use_nodbg_operands(IntB.reg())) {  in removePartialRedundancy()
1228       if (!IntB.liveAt(UseIdx))  in removePartialRedundancy()
1234   LIS->extendToIndices(IntB, EndPoints);  in removePartialRedundancy()
1237   for (LiveInterval::SubRange &SR : IntB.subranges()) {  in removePartialRedundancy()
1258     IntB.computeSubRangeUndefs(Undefs, SR.LaneMask, *MRI,  in removePartialRedundancy()
1263   shrinkToUses(&IntB);  in removePartialRedundancy()