39 static bool isValidRegUseOf(const MachineOperand &MO, Register Reg,  in isValidRegUseOf()  argument
43   return TRI->regsOverlap(MO.getReg(), Reg);  in isValidRegUseOf()
50 static bool isValidRegDefOf(const MachineOperand &MO, Register Reg,  in isValidRegDefOf()  argument
54   return TRI->regsOverlap(MO.getReg(), Reg);  in isValidRegDefOf()
243         Register Reg;  in printAllReachingDefs()  local
248           Reg = Register::index2StackSlot(FrameIndex);  in printAllReachingDefs()
252           Reg = MO.getReg();  in printAllReachingDefs()
253           if (!Reg.isValid())  in printAllReachingDefs()
258         getGlobalReachingDefs(&MI, Reg, Defs);  in printAllReachingDefs()
335 int ReachingDefAnalysis::getReachingDef(MachineInstr *MI, Register Reg) const {  in getReachingDef()
344   if (Reg.isStack()) {  in getReachingDef()
346     int FrameIndex = Reg.stackSlotIndex();  in getReachingDef()
360   for (MCRegUnit Unit : TRI->regunits(Reg)) {  in getReachingDef()
372                                                          Register Reg) const {  in getReachingLocalMIDef()
373   return hasLocalDefBefore(MI, Reg)  in getReachingLocalMIDef()
374              ? getInstFromId(MI->getParent(), getReachingDef(MI, Reg))  in getReachingLocalMIDef()
379                                              Register Reg) const {  in hasSameReachingDef()
385   return getReachingDef(A, Reg) == getReachingDef(B, Reg);  in hasSameReachingDef()
408 int ReachingDefAnalysis::getClearance(MachineInstr *MI, Register Reg) const {  in getClearance()
410   return InstIds.lookup(MI) - getReachingDef(MI, Reg);  in getClearance()
414                                             Register Reg) const {  in hasLocalDefBefore()
415   return getReachingDef(MI, Reg) >= 0;  in hasLocalDefBefore()
418 void ReachingDefAnalysis::getReachingLocalUses(MachineInstr *Def, Register Reg,  in getReachingLocalUses()  argument
428     if (getReachingLocalMIDef(&*MI, Reg) != Def)  in getReachingLocalUses()
432       if (!isValidRegUseOf(MO, Reg, TRI))  in getReachingLocalUses()
442 bool ReachingDefAnalysis::getLiveInUses(MachineBasicBlock *MBB, Register Reg,  in getLiveInUses()  argument
447       if (!isValidRegUseOf(MO, Reg, TRI))  in getLiveInUses()
449       if (getReachingDef(&MI, Reg) >= 0)  in getLiveInUses()
457   return isReachingDefLiveOut(&*Last, Reg);  in getLiveInUses()
460 void ReachingDefAnalysis::getGlobalUses(MachineInstr *MI, Register Reg,  in getGlobalUses()  argument
465   getReachingLocalUses(MI, Reg, Uses);  in getGlobalUses()
468   if (auto *LiveOut = getLocalLiveOutMIDef(MI->getParent(), Reg)) {  in getGlobalUses()
476       if (Visited.count(MBB) || !MBB->isLiveIn(Reg))  in getGlobalUses()
478       if (getLiveInUses(MBB, Reg, Uses))  in getGlobalUses()
485 void ReachingDefAnalysis::getGlobalReachingDefs(MachineInstr *MI, Register Reg,  in getGlobalReachingDefs()  argument
487   if (auto *Def = getUniqueReachingMIDef(MI, Reg)) {  in getGlobalReachingDefs()
493     getLiveOuts(MBB, Reg, Defs);  in getGlobalReachingDefs()
496 void ReachingDefAnalysis::getLiveOuts(MachineBasicBlock *MBB, Register Reg,  in getLiveOuts()  argument
499   getLiveOuts(MBB, Reg, Defs, VisitedBBs);  in getLiveOuts()
502 void ReachingDefAnalysis::getLiveOuts(MachineBasicBlock *MBB, Register Reg,  in getLiveOuts()  argument
511   if (Reg.isPhysical() && LiveRegs.available(Reg))  in getLiveOuts()
514   if (auto *Def = getLocalLiveOutMIDef(MBB, Reg))  in getLiveOuts()
518       getLiveOuts(Pred, Reg, Defs, VisitedBBs);  in getLiveOuts()
522                                                           Register Reg) const {  in getUniqueReachingMIDef()
524   MachineInstr *LocalDef = getReachingLocalMIDef(MI, Reg);  in getUniqueReachingMIDef()
531     getLiveOuts(Pred, Reg, Incoming);  in getUniqueReachingMIDef()
553 bool ReachingDefAnalysis::isRegUsedAfter(MachineInstr *MI, Register Reg) const {  in isRegUsedAfter()
559   if (!LiveRegs.available(Reg))  in isRegUsedAfter()
567     if (!LiveRegs.available(Reg))  in isRegUsedAfter()
574                                             Register Reg) const {  in isRegDefinedAfter()
578       getReachingDef(MI, Reg) != getReachingDef(&*Last, Reg))  in isRegDefinedAfter()
581   if (auto *Def = getLocalLiveOutMIDef(MBB, Reg))  in isRegDefinedAfter()
582     return Def == getReachingLocalMIDef(MI, Reg);  in isRegDefinedAfter()
588                                                Register Reg) const {  in isReachingDefLiveOut()
592   if (Reg.isPhysical() && LiveRegs.available(Reg))  in isReachingDefLiveOut()
596   int Def = getReachingDef(MI, Reg);  in isReachingDefLiveOut()
597   if (Last != MBB->end() && getReachingDef(&*Last, Reg) != Def)  in isReachingDefLiveOut()
602     if (isValidRegDefOf(MO, Reg, TRI))  in isReachingDefLiveOut()
609                                                         Register Reg) const {  in getLocalLiveOutMIDef()
612   if (Reg.isPhysical() && LiveRegs.available(Reg))  in getLocalLiveOutMIDef()
619   if (Reg.isStack()) {  in getLocalLiveOutMIDef()
620     int FrameIndex = Reg.stackSlotIndex();  in getLocalLiveOutMIDef()
625   int Def = getReachingDef(&*Last, Reg);  in getLocalLiveOutMIDef()
628     if (isValidRegDefOf(MO, Reg, TRI))  in getLocalLiveOutMIDef()
740   auto IsDead = [this, &Dead](MachineInstr *Def, Register Reg) {  in collectKilledOperands()  argument
756     getGlobalUses(Def, Reg, Uses);  in collectKilledOperands()
770                                            Register Reg) const {  in isSafeToDefRegAt()
772   return isSafeToDefRegAt(MI, Reg, Ignore);  in isSafeToDefRegAt()
775 bool ReachingDefAnalysis::isSafeToDefRegAt(MachineInstr *MI, Register Reg,  in isSafeToDefRegAt()  argument
778   if (isRegUsedAfter(MI, Reg)) {  in isSafeToDefRegAt()
779     if (auto *Def = getReachingLocalMIDef(MI, Reg)) {  in isSafeToDefRegAt()
781       getGlobalUses(Def, Reg, Uses);  in isSafeToDefRegAt()
790   if (isRegDefinedAfter(MI, Reg)) {  in isSafeToDefRegAt()
796         if (isValidRegDefOf(MO, Reg, TRI))  in isSafeToDefRegAt()