290     bool hasOtherReachingDefs(LiveInterval &IntA, LiveInterval &IntB,
632   LiveInterval &IntB =  in adjustCopiesBackFrom()  local
652   LiveInterval::iterator BS = IntB.FindSegmentContaining(CopyIdx);  in adjustCopiesBackFrom()
653   if (BS == IntB.end()) return false;  in adjustCopiesBackFrom()
677     IntB.FindSegmentContaining(AValNo->def.getPrevSlot());  in adjustCopiesBackFrom()
678   if (ValS == IntB.end())  in adjustCopiesBackFrom()
693   LLVM_DEBUG(dbgs() << "Extending: " << printReg(IntB.reg(), TRI));  in adjustCopiesBackFrom()
704   IntB.addSegment(LiveInterval::Segment(FillerStart, FillerEnd, BValNo));  in adjustCopiesBackFrom()
708     IntB.MergeValueNumberInto(BValNo, ValS->valno);  in adjustCopiesBackFrom()
711   for (LiveInterval::SubRange &S : IntB.subranges()) {  in adjustCopiesBackFrom()
732   LLVM_DEBUG(dbgs() << "   result = " << IntB << '\n');  in adjustCopiesBackFrom()
736   int UIdx = ValSEndInst->findRegisterUseOperandIdx(IntB.reg(), true);  in adjustCopiesBackFrom()
742   CopyMI->substituteRegister(IntA.reg(), IntB.reg(), 0, *TRI);  in adjustCopiesBackFrom()
763                                              LiveInterval &IntB,  in hasOtherReachingDefs()  argument
773     LiveInterval::iterator BI = llvm::upper_bound(IntB, ASeg.start);  in hasOtherReachingDefs()
774     if (BI != IntB.begin())  in hasOtherReachingDefs()
776     for (; BI != IntB.end() && ASeg.end >= BI->start; ++BI) {  in hasOtherReachingDefs()
820   LiveInterval &IntB =  in removeCopyByCommutingDef()  local
846   VNInfo *BValNo = IntB.getVNInfoAt(CopyIdx);  in removeCopyByCommutingDef()
882   if (NewReg != IntB.reg() || !IntB.Query(AValNo->def).isKill())  in removeCopyByCommutingDef()
887   if (hasOtherReachingDefs(IntA, IntB, AValNo, BValNo))  in removeCopyByCommutingDef()
915       Register::isVirtualRegister(IntB.reg()) &&  in removeCopyByCommutingDef()
916       !MRI->constrainRegClass(IntB.reg(), MRI->getRegClass(IntA.reg())))  in removeCopyByCommutingDef()
961     if (UseMI->getOperand(0).getReg() != IntB.reg() ||  in removeCopyByCommutingDef()
968     VNInfo *DVNI = IntB.getVNInfoAt(DefIdx);  in removeCopyByCommutingDef()
973     BValNo = IntB.MergeValueNumberInto(DVNI, BValNo);  in removeCopyByCommutingDef()
974     for (LiveInterval::SubRange &S : IntB.subranges()) {  in removeCopyByCommutingDef()
990   if (IntA.hasSubRanges() || IntB.hasSubRanges()) {  in removeCopyByCommutingDef()
994     } else if (!IntB.hasSubRanges()) {  in removeCopyByCommutingDef()
995       LaneBitmask Mask = MRI->getMaxLaneMaskForVReg(IntB.reg());  in removeCopyByCommutingDef()
996       IntB.createSubRangeFrom(Allocator, Mask, IntB);  in removeCopyByCommutingDef()
1013       IntB.refineSubRanges(  in removeCopyByCommutingDef()
1030     for (LiveInterval::SubRange &SB : IntB.subranges()) {  in removeCopyByCommutingDef()
1040   auto P = addSegmentsWithValNo(IntB, BValNo, IntA, AValNo);  in removeCopyByCommutingDef()
1042   LLVM_DEBUG(dbgs() << "\t\textended: " << IntB << '\n');  in removeCopyByCommutingDef()
1115   LiveInterval &IntB =  in removePartialRedundancy()  local
1126   if (IntB.overlaps(LIS->getMBBStartIdx(&MBB), CopyIdx))  in removePartialRedundancy()
1142         DefMI->getOperand(1).getReg() != IntB.reg() ||  in removePartialRedundancy()
1151     for (auto *VNI : IntB.valnos) {  in removePartialRedundancy()
1190       if (IntB.overlaps(InsPosIdx, LIS->getMBBEndIdx(CopyLeftBB)))  in removePartialRedundancy()
1199                                       TII->get(TargetOpcode::COPY), IntB.reg())  in removePartialRedundancy()
1203     IntB.createDeadDef(NewCopyIdx, LIS->getVNInfoAllocator());  in removePartialRedundancy()
1204     for (LiveInterval::SubRange &SR : IntB.subranges())  in removePartialRedundancy()
1225   VNInfo *BValNo = IntB.Query(CopyIdx).valueOutOrDead();  in removePartialRedundancy()
1226   LIS->pruneValue(*static_cast<LiveRange *>(&IntB), CopyIdx.getRegSlot(),  in removePartialRedundancy()
1230   LIS->extendToIndices(IntB, EndPoints);  in removePartialRedundancy()
1233   for (LiveInterval::SubRange &SR : IntB.subranges()) {  in removePartialRedundancy()
1254     IntB.computeSubRangeUndefs(Undefs, SR.LaneMask, *MRI,  in removePartialRedundancy()
1259   shrinkToUses(&IntB);  in removePartialRedundancy()