- OS << "namespace llvm {\n\n";
-
- const std::string &TargetName = Target.getName();
- std::string ClassName = TargetName + "GenMCRegisterInfo";
- OS << "struct " << ClassName << " : public MCRegisterInfo {\n"
- << " explicit " << ClassName << "(const TargetRegisterDesc *D);\n";
- OS << "};\n";
-
- OS << "\nnamespace {\n";
-
- const std::vector<CodeGenRegister*> &Regs = RegBank.getRegisters();
-
- // Emit an overlap list for all registers.
- for (unsigned i = 0, e = Regs.size(); i != e; ++i) {
- const CodeGenRegister *Reg = Regs[i];
- const CodeGenRegister::Set &O = Overlaps[Reg];
- // Move Reg to the front so TRI::getAliasSet can share the list.
- OS << " const unsigned " << Reg->getName() << "_Overlaps[] = { "
- << getQualifiedName(Reg->TheDef) << ", ";
- for (CodeGenRegister::Set::const_iterator I = O.begin(), E = O.end();
- I != E; ++I)
- if (*I != Reg)
- OS << getQualifiedName((*I)->TheDef) << ", ";
- OS << "0 };\n";
- }
-
- // Emit the empty sub-registers list
- OS << " const unsigned Empty_SubRegsSet[] = { 0 };\n";
- // Loop over all of the registers which have sub-registers, emitting the
- // sub-registers list to memory.
- for (unsigned i = 0, e = Regs.size(); i != e; ++i) {
- const CodeGenRegister &Reg = *Regs[i];
- if (Reg.getSubRegs().empty())
- continue;
- // getSubRegs() orders by SubRegIndex. We want a topological order.
- SetVector<CodeGenRegister*> SR;
- Reg.addSubRegsPreOrder(SR);
- OS << " const unsigned " << Reg.getName() << "_SubRegsSet[] = { ";
- for (unsigned j = 0, je = SR.size(); j != je; ++j)
- OS << getQualifiedName(SR[j]->TheDef) << ", ";
- OS << "0 };\n";
- }
-
- // Emit the empty super-registers list
- OS << " const unsigned Empty_SuperRegsSet[] = { 0 };\n";
- // Loop over all of the registers which have super-registers, emitting the
- // super-registers list to memory.
- for (unsigned i = 0, e = Regs.size(); i != e; ++i) {
- const CodeGenRegister &Reg = *Regs[i];
- const CodeGenRegister::SuperRegList &SR = Reg.getSuperRegs();
- if (SR.empty())
- continue;
- OS << " const unsigned " << Reg.getName() << "_SuperRegsSet[] = { ";
- for (unsigned j = 0, je = SR.size(); j != je; ++j)
- OS << getQualifiedName(SR[j]->TheDef) << ", ";
- OS << "0 };\n";
- }
-
- OS << "\n const TargetRegisterDesc " << TargetName
- << "RegDesc[] = { // Descriptors\n";
- OS << " { \"NOREG\",\t0,\t0,\t0 },\n";
-
- // Now that register alias and sub-registers sets have been emitted, emit the
- // register descriptors now.
- for (unsigned i = 0, e = Regs.size(); i != e; ++i) {
- const CodeGenRegister &Reg = *Regs[i];
- OS << " { \"";
- OS << Reg.getName() << "\",\t" << Reg.getName() << "_Overlaps,\t";
- if (!Reg.getSubRegs().empty())
- OS << Reg.getName() << "_SubRegsSet,\t";
- else
- OS << "Empty_SubRegsSet,\t";
- if (!Reg.getSuperRegs().empty())
- OS << Reg.getName() << "_SuperRegsSet";
- else
- OS << "Empty_SuperRegsSet";
- OS << " },\n";
- }
- OS << " };\n"; // End of register descriptors...
-
- OS << "}\n\n"; // End of anonymous namespace...
-
- // MCRegisterInfo initialization routine.
- OS << "static inline void Init" << TargetName
- << "MCRegisterInfo(MCRegisterInfo *RI) {\n";
- OS << " RI->InitMCRegisterInfo(" << TargetName << "RegDesc, "
- << Regs.size()+1 << ");\n}\n\n";
-
- OS << "} // End llvm namespace \n";