+void SubtargetEmitter::EmitSchedModelHelpers(std::string ClassName,
+ raw_ostream &OS) {
+ OS << "unsigned " << ClassName
+ << "\n::resolveSchedClass(unsigned SchedClass, const MachineInstr *MI,"
+ << " const TargetSchedModel *SchedModel) const {\n";
+
+ std::vector<Record*> Prologs = Records.getAllDerivedDefinitions("PredicateProlog");
+ std::sort(Prologs.begin(), Prologs.end(), LessRecord());
+ for (std::vector<Record*>::const_iterator
+ PI = Prologs.begin(), PE = Prologs.end(); PI != PE; ++PI) {
+ OS << (*PI)->getValueAsString("Code") << '\n';
+ }
+ IdxVec VariantClasses;
+ for (CodeGenSchedModels::SchedClassIter SCI = SchedModels.schedClassBegin(),
+ SCE = SchedModels.schedClassEnd(); SCI != SCE; ++SCI) {
+ if (SCI->Transitions.empty())
+ continue;
+ VariantClasses.push_back(SCI->Index);
+ }
+ if (!VariantClasses.empty()) {
+ OS << " switch (SchedClass) {\n";
+ for (IdxIter VCI = VariantClasses.begin(), VCE = VariantClasses.end();
+ VCI != VCE; ++VCI) {
+ const CodeGenSchedClass &SC = SchedModels.getSchedClass(*VCI);
+ OS << " case " << *VCI << ": // " << SC.Name << '\n';
+ IdxVec ProcIndices;
+ for (std::vector<CodeGenSchedTransition>::const_iterator
+ TI = SC.Transitions.begin(), TE = SC.Transitions.end();
+ TI != TE; ++TI) {
+ IdxVec PI;
+ std::set_union(TI->ProcIndices.begin(), TI->ProcIndices.end(),
+ ProcIndices.begin(), ProcIndices.end(),
+ std::back_inserter(PI));
+ ProcIndices.swap(PI);
+ }
+ for (IdxIter PI = ProcIndices.begin(), PE = ProcIndices.end();
+ PI != PE; ++PI) {
+ OS << " ";
+ if (*PI != 0)
+ OS << "if (SchedModel->getProcessorID() == " << *PI << ") ";
+ OS << "{ // " << (SchedModels.procModelBegin() + *PI)->ModelName
+ << '\n';
+ for (std::vector<CodeGenSchedTransition>::const_iterator
+ TI = SC.Transitions.begin(), TE = SC.Transitions.end();
+ TI != TE; ++TI) {
+ if (*PI != 0 && !std::count(TI->ProcIndices.begin(),
+ TI->ProcIndices.end(), *PI)) {
+ continue;
+ }
+ OS << " if (";
+ for (RecIter RI = TI->PredTerm.begin(), RE = TI->PredTerm.end();
+ RI != RE; ++RI) {
+ if (RI != TI->PredTerm.begin())
+ OS << "\n && ";
+ OS << "(" << (*RI)->getValueAsString("Predicate") << ")";
+ }
+ OS << ")\n"
+ << " return " << TI->ToClassIdx << "; // "
+ << SchedModels.getSchedClass(TI->ToClassIdx).Name << '\n';
+ }
+ OS << " }\n";
+ if (*PI == 0)
+ break;
+ }
+ if (SC.isInferred())
+ OS << " return " << SC.Index << ";\n";
+ OS << " break;\n";
+ }
+ OS << " };\n";
+ }
+ OS << " report_fatal_error(\"Expected a variant SchedClass\");\n"
+ << "} // " << ClassName << "::resolveSchedClass\n";
+}
+