lib/CodeGen/ExecutionDomainFix.cpp

26   DomainValue *dv = Avail.empty() ? new (Allocator.Allocate()) DomainValue
29     dv->addDomain(domain);
30   assert(dv->Refs == 0 && "Reference count wasn't cleared");
31   assert(!dv->Next && "Chained DomainValue shouldn't have been recycled");
32   return dv;
70 void ExecutionDomainFix::setLiveReg(int rx, DomainValue *dv) {
74   if (LiveRegs[rx] == dv)
78   LiveRegs[rx] = retain(dv);
94   if (DomainValue *dv = LiveRegs[rx]) {
95     if (dv->isCollapsed())
96       dv->addDomain(domain);
97     else if (dv->hasDomain(domain))
98       collapse(dv, domain);
102       collapse(dv, dv->getFirstDomain());
112 void ExecutionDomainFix::collapse(DomainValue *dv, unsigned domain) {
113   assert(dv->hasDomain(domain) && "Cannot collapse");
116   while (!dv->Instrs.empty())
117     TII->setExecutionDomain(*dv->Instrs.pop_back_val(), domain);
118   dv->setSingleDomain(domain);
121   if (!LiveRegs.empty() && dv->Refs > 1)
123       if (LiveRegs[rx] == dv)
297         DomainValue *dv = LiveRegs[rx];
298         if (dv == nullptr)
300         // Bitmask of domains that dv and available have in common.
301         unsigned common = dv->getCommonDomains(available);
303         if (dv->isCollapsed()) {
349   DomainValue *dv = nullptr;
351     if (!dv) {
352       dv = LiveRegs[Regs.pop_back_val()];
353       // Force the first dv to match the current instruction.
354       dv->AvailableDomains = dv->getCommonDomains(available);
355       assert(dv->AvailableDomains && "Domain should have been filtered");
361     if (Latest == dv || Latest->Next)
363     if (merge(dv, Latest))
374   // dv is the DomainValue we are going to use for this instruction.
375   if (!dv) {
376     dv = alloc();
377     dv->AvailableDomains = available;
379   dv->Instrs.push_back(mi);
381   // Finally set all defs and non-collapsed uses to dv. We must iterate through
387       if (!LiveRegs[rx] || (mo.isDef() && LiveRegs[rx] != dv)) {
389         setLiveReg(rx, dv);