70   LiveVariables *LV = nullptr;  member in __anonf60509ee0111::PHIEliminationImpl
124     LV = LVWrapper ? &LVWrapper->getLV() : nullptr;  in PHIEliminationImpl()
131       : LV(AM.getCachedResult<LiveVariablesAnalysis>(MF)),  in PHIEliminationImpl()
209   if (!DisableEdgeSplitting && (LV || LIS)) {  in run()
210     // A set of live-in regs for each MBB which is used to update LV  in run()
213     if (LV) {  in run()
222         LiveVariables::VarInfo &VI = LV->getVarInfo(VirtReg);  in run()
240       Changed |= SplitPHIEdges(MF, MBB, MLI, (LV ? &LiveInSets : nullptr));  in run()
247   if (LV || LIS)  in run()
405   if (LV) {  in LowerPHINode()
407       LiveVariables::VarInfo &VI = LV->getVarInfo(IncomingReg);  in LowerPHINode()
435         LV->removeVirtualRegisterKilled(IncomingReg, *OldKill);  in LowerPHINode()
445         LV->addVirtualRegisterKilled(IncomingReg, *PHICopy);  in LowerPHINode()
451     LV->removeVirtualRegistersKilled(*MPhi);  in LowerPHINode()
453     // If the result is dead, update LV.  in LowerPHINode()
455       LV->addVirtualRegisterDead(DestReg, *PHICopy);  in LowerPHINode()
456       LV->removeVirtualRegisterDead(DestReg, *MPhi);  in LowerPHINode()
523   if (LV || LIS) {  in LowerPHINode()
566       if (LV) {  in LowerPHINode()
567         LiveVariables::VarInfo &SrcVI = LV->getVarInfo(SrcReg);  in LowerPHINode()
568         LiveVariables::VarInfo &IncomingVI = LV->getVarInfo(IncomingReg);  in LowerPHINode()
607     if (LV && !SrcUndef &&  in LowerPHINode()
609         !LV->isLiveOut(SrcReg, opBlock)) {  in LowerPHINode()
655       LV->addVirtualRegisterKilled(SrcReg, *KillInst);  in LowerPHINode()
659       LV->getVarInfo(SrcReg).AliveBlocks.reset(opBlockNum);  in LowerPHINode()
780       // LV doesn't consider a phi use live-out, so isLiveOut only returns true  in SplitPHIEdges()
835   assert((LV || LIS) &&  in isLiveIn()
840     return LV->isLiveIn(Reg, *MBB);  in isLiveIn()
845   assert((LV || LIS) &&  in isLiveOutPastPHIs()
859     return LV->isLiveOut(Reg, *MBB);  in isLiveOutPastPHIs()