Cross Reference: /external/llvm/lib/CodeGen/RegAllocFast.cpp

Lines Matching defs:PhysReg
73       unsigned PhysReg;         // Currently held here.
78         : LastUse(nullptr), VirtReg(v), PhysReg(0), LastOpNum(0), Dirty(false){}
124     void markRegUsedInInstr(unsigned PhysReg) {
125       for (MCRegUnitIterator Units(PhysReg, TRI); Units.isValid(); ++Units)
130     bool isRegUsedInInstr(unsigned PhysReg) const {
131       for (MCRegUnitIterator Units(PhysReg, TRI); Units.isValid(); ++Units)
177     void definePhysReg(MachineInstr *MI, unsigned PhysReg, RegState NewState);
178     unsigned calcSpillCost(unsigned PhysReg) const;
179     void assignVirtToPhysReg(LiveReg&, unsigned PhysReg);
186     LiveRegMap::iterator assignVirtToPhysReg(unsigned VReg, unsigned PhysReg);
194     bool setPhysReg(MachineInstr *MI, unsigned OpNum, unsigned PhysReg);
237     if (MO.getReg() == LR.PhysReg)
240       LR.LastUse->addRegisterKilled(LR.PhysReg, TRI, true);
247   assert(PhysRegState[LRI->PhysReg] == LRI->VirtReg &&
249   PhysRegState[LRI->PhysReg] = regFree;
278   assert(PhysRegState[LR.PhysReg] == LRI->VirtReg && "Broken RegState mapping");
286                  << " in " << PrintReg(LR.PhysReg, TRI));
290     TII->storeRegToStackSlot(*MBB, MI, LR.PhysReg, SpillKill, FI, RC, TRI);
345   unsigned PhysReg = MO.getReg();
346   assert(TargetRegisterInfo::isPhysicalRegister(PhysReg) &&
348   markRegUsedInInstr(PhysReg);
349   switch (PhysRegState[PhysReg]) {
353     PhysRegState[PhysReg] = regFree;
365   for (MCRegAliasIterator AI(PhysReg, TRI, false); AI.isValid(); ++AI) {
371       // Either PhysReg is a subregister of Alias and we mark the
372       // whole register as free, or PhysReg is the superregister of
374       // PhysReg.
375       // In the latter case, since PhysReg was disabled, this means that
380       assert((TRI->isSuperRegister(PhysReg, Alias) ||
381               TRI->isSuperRegister(Alias, PhysReg)) &&
385       if (TRI->isSuperRegister(PhysReg, Alias)) {
400   PhysRegState[PhysReg] = regFree;
404 /// definePhysReg - Mark PhysReg as reserved or free after spilling any
407 void RAFast::definePhysReg(MachineInstr *MI, unsigned PhysReg,
409   markRegUsedInInstr(PhysReg);
410   switch (unsigned VirtReg = PhysRegState[PhysReg]) {
418     PhysRegState[PhysReg] = NewState;
423   PhysRegState[PhysReg] = NewState;
424   for (MCRegAliasIterator AI(PhysReg, TRI, false); AI.isValid(); ++AI) {
435       if (TRI->isSuperRegister(PhysReg, Alias))
443 // calcSpillCost - Return the cost of spilling clearing out PhysReg and
445 // Returns 0 when PhysReg is free or disabled with all aliases disabled - it
447 // Returns spillImpossible when PhysReg or an alias can't be spilled.
448 unsigned RAFast::calcSpillCost(unsigned PhysReg) const {
449   if (isRegUsedInInstr(PhysReg)) {
450     DEBUG(dbgs() << PrintReg(PhysReg, TRI) << " is already used in instr.\n");
453   switch (unsigned VirtReg = PhysRegState[PhysReg]) {
460                  << PrintReg(PhysReg, TRI) << " is reserved already.\n");
470   DEBUG(dbgs() << PrintReg(PhysReg, TRI) << " is disabled.\n");
472   for (MCRegAliasIterator AI(PhysReg, TRI, false); AI.isValid(); ++AI) {
495 /// that PhysReg is the proper container for VirtReg now.  The physical
498 void RAFast::assignVirtToPhysReg(LiveReg &LR, unsigned PhysReg) {
500                << PrintReg(PhysReg, TRI) << "\n");
501   PhysRegState[PhysReg] = LR.VirtReg;
502   assert(!LR.PhysReg && "Already assigned a physreg");
503   LR.PhysReg = PhysReg;
507 RAFast::assignVirtToPhysReg(unsigned VirtReg, unsigned PhysReg) {
510   assignVirtToPhysReg(*LRI, PhysReg);
547     unsigned PhysReg = *I;
548     if (PhysRegState[PhysReg] == regFree && !isRegUsedInInstr(PhysReg)) {
549       assignVirtToPhysReg(*LRI, PhysReg);
613   assert(LRI->PhysReg && "Register not assigned");
617   markRegUsedInInstr(LRI->PhysReg);
636                  << PrintReg(LRI->PhysReg, TRI) << "\n");
637     TII->loadRegFromStackSlot(*MBB, MI, LRI->PhysReg, FrameIndex, RC, TRI);
664   assert(LRI->PhysReg && "Register not assigned");
667   markRegUsedInInstr(LRI->PhysReg);
671 // setPhysReg - Change operand OpNum in MI the refer the PhysReg, considering
674 bool RAFast::setPhysReg(MachineInstr *MI, unsigned OpNum, unsigned PhysReg) {
678     MO.setReg(PhysReg);
683   MO.setReg(PhysReg ? TRI->getSubReg(PhysReg, MO.getSubReg()) : 0);
689     MI->addRegisterKilled(PhysReg, TRI, true);
696     MI->addRegisterDefined(PhysReg, TRI);
748       unsigned PhysReg = LRI->PhysReg;
749       setPhysReg(MI, i, PhysReg);
757       PartialDefs.push_back(LRI->PhysReg);
771     unsigned PhysReg = LRI->PhysReg;
772     if (setPhysReg(MI, i, PhysReg))
803     if (MRI->isAllocatable(LI.PhysReg))
804       definePhysReg(MII, LI.PhysReg, regReserved);
830             assert(I->PhysReg == Reg && "Bad inverse map");
841            assert(TargetRegisterInfo::isPhysicalRegister(i->PhysReg) &&
843            assert(PhysRegState[i->PhysReg] == i->VirtReg && "Bad inverse map");
859             setPhysReg(MI, i, LRI->PhysReg);
981         unsigned PhysReg = LRI->PhysReg;
982         CopySrc = (CopySrc == Reg || CopySrc == PhysReg) ? PhysReg : 0;
983         if (setPhysReg(MI, i, PhysReg))
1032       unsigned PhysReg = LRI->PhysReg;
1033       if (setPhysReg(MI, i, PhysReg)) {
1037         CopyDst = (CopyDst == Reg || CopyDst == PhysReg) ? PhysReg : 0;