mirror of
https://github.com/c64scene-ar/llvm-6502.git
synced 2025-04-09 16:45:03 +00:00
Finish the register info emitter
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@7506 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Chris Lattner
parent
09ce077a2d
commit
9fff8919ee
@ -34,33 +34,38 @@ void RegisterInfoEmitter::runEnums(std::ostream &OS) {
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OS << " enum {\n NoRegister,\n";
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for (unsigned i = 0, e = Registers.size(); i != e; ++i)
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OS << " " << Registers[i]->getName() << ",\n";
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OS << " " << Registers[i]->getName() << ",\t// " << i+1 << "\n";
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OS << " };\n";
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if (!Namespace.empty())
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OS << "}\n";
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}
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void RegisterInfoEmitter::runHeader(std::ostream &OS) {
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static Record *getRegisterInfo(RecordKeeper &RC) {
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std::vector<Record*> RegisterInfos =
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Records.getAllDerivedDefinitions("RegisterInfo");
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if (RegisterInfos.size() != 1)
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throw std::string("ERROR: Multiple subclasses of RegisterInfo defined!");
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return RegisterInfos[0];
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}
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void RegisterInfoEmitter::runHeader(std::ostream &OS) {
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EmitSourceHeader("Register Information Header Fragment", OS);
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std::string ClassName = RegisterInfos[0]->getValueAsString("ClassName");
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std::string ClassName =
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getRegisterInfo(Records)->getValueAsString("ClassName");
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OS << "#include \"llvm/Target/MRegisterInfo.h\"\n\n";
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OS << "struct " << ClassName << " : public MRegisterInfo {\n"
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<< " " << ClassName << "();\n"
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<< " " << ClassName
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<< "(int CallFrameSetupOpcode = -1, int CallFrameDestroyOpcode = -1);\n"
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<< " const unsigned* getCalleeSaveRegs() const;\n"
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<< "};\n\n";
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}
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static std::string getQualifiedRecordName(Record *R) {
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static std::string getQualifiedName(Record *R) {
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std::string Namespace = R->getValueAsString("Namespace");
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if (Namespace.empty()) return R->getName();
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return Namespace + "::" + R->getName();
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@ -82,10 +87,11 @@ void RegisterInfoEmitter::run(std::ostream &OS) {
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Record *RegisterClass = Records.getClass("Register");
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std::set<Record*> RegistersFound;
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std::vector<std::string> RegClassNames;
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// Loop over all of the register classes... emitting each one.
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OS << "namespace { // Register classes...\n";
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std::vector<std::string> RegisterClassNames;
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for (unsigned rc = 0, e = RegisterClasses.size(); rc != e; ++rc) {
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Record *RC = RegisterClasses[rc];
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std::string Name = RC->getName();
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@ -94,6 +100,8 @@ void RegisterInfoEmitter::run(std::ostream &OS) {
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Name = "AnonRegClass_"+utostr(AnonCounter++);
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}
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RegClassNames.push_back(Name);
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// Emit the register list now...
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OS << " // " << Name << " Register Class...\n const unsigned " << Name
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<< "[] = {\n ";
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@ -106,7 +114,8 @@ void RegisterInfoEmitter::run(std::ostream &OS) {
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if (RegistersFound.count(Reg))
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throw "Register '" + Reg->getName() +
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"' included in multiple register classes!";
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OS << getQualifiedRecordName(Reg) << ", ";
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RegistersFound.insert(Reg);
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OS << getQualifiedName(Reg) << ", ";
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}
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OS << "\n };\n\n";
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@ -123,8 +132,86 @@ void RegisterInfoEmitter::run(std::ostream &OS) {
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RC->getName() + "'!";
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OS << " } " << Name << "Instance;\n\n";
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}
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OS << "}\n"; // End of anonymous namespace...
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OS << " const TargetRegisterClass* const RegisterClasses[] = {\n";
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for (unsigned i = 0, e = RegClassNames.size(); i != e; ++i)
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OS << " &" << RegClassNames[i] << "Instance,\n";
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OS << " };\n";
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// Emit register class aliases...
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std::vector<Record*> RegisterAliasesRecs =
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Records.getAllDerivedDefinitions("RegisterAliases");
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std::map<Record*, std::set<Record*> > RegisterAliases;
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for (unsigned i = 0, e = RegisterAliasesRecs.size(); i != e; ++i) {
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Record *AS = RegisterAliasesRecs[i];
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Record *R = AS->getValueAsDef("Reg");
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ListInit *LI = AS->getValueAsListInit("Aliases");
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// Add information that R aliases all of the elements in the list... and
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// that everything in the list aliases R.
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for (unsigned j = 0, e = LI->getSize(); j != e; ++j) {
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if (RegisterAliases[R].count(LI->getElement(j)))
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std::cerr << "Warning: register alias between " << getQualifiedName(R)
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<< " and " << getQualifiedName(LI->getElement(j))
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<< " specified multiple times!\n";
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RegisterAliases[R].insert(LI->getElement(j));
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if (RegisterAliases[LI->getElement(j)].count(R))
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std::cerr << "Warning: register alias between " << getQualifiedName(R)
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<< " and " << getQualifiedName(LI->getElement(j))
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<< " specified multiple times!\n";
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RegisterAliases[LI->getElement(j)].insert(R);
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}
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}
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if (!RegisterAliases.empty())
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OS << "\n\n // Register Alias Sets...\n";
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// Loop over all of the registers which have aliases, emitting the alias list
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// to memory.
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for (std::map<Record*, std::set<Record*> >::iterator
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I = RegisterAliases.begin(), E = RegisterAliases.end(); I != E; ++I) {
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OS << " const unsigned " << I->first->getName() << "_AliasSet[] = { ";
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for (std::set<Record*>::iterator ASI = I->second.begin(),
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E = I->second.end(); ASI != E; ++ASI)
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OS << getQualifiedName(*ASI) << ", ";
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OS << "0 };\n";
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}
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OS << "\n const MRegisterDesc RegisterDescriptors[] = { // Descriptors\n";
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OS << " { \"NOREG\",\t0,\t\t0,\t0 },\n";
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// Now that register alias sets have been emitted, emit the register
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// descriptors now.
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for (unsigned i = 0, e = Registers.size(); i != e; ++i) {
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Record *Reg = Registers[i];
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OS << " { \"" << Reg->getName() << "\",\t";
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if (RegisterAliases.count(Reg))
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OS << Reg->getName() << "_AliasSet,\t";
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else
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OS << "0,\t\t";
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OS << "0, 0 },\n";
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}
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OS << " };\n"; // End of register descriptors...
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OS << "}\n\n"; // End of anonymous namespace...
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Record *RegisterInfo = getRegisterInfo(Records);
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std::string ClassName = RegisterInfo->getValueAsString("ClassName");
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// Emit the constructor of the class...
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OS << ClassName << "::" << ClassName
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<< "(int CallFrameSetupOpcode, int CallFrameDestroyOpcode)\n"
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<< " : MRegisterInfo(RegisterDescriptors, " << Registers.size()+1
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<< ", RegisterClasses, RegisterClasses+" << RegClassNames.size() << ",\n "
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<< " CallFrameSetupOpcode, CallFrameDestroyOpcode) {}\n\n";
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// Emit the getCalleeSaveRegs method...
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OS << "const unsigned* " << ClassName << "::getCalleeSaveRegs() const {\n"
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<< " static const unsigned CalleeSaveRegs[] = {\n ";
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ListInit *LI = RegisterInfo->getValueAsListInit("CalleeSavedRegisters");
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for (unsigned i = 0, e = LI->getSize(); i != e; ++i)
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OS << getQualifiedName(LI->getElement(i)) << ", ";
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OS << " 0\n };\n return CalleeSaveRegs;\n}\n\n";
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}
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@ -34,33 +34,38 @@ void RegisterInfoEmitter::runEnums(std::ostream &OS) {
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OS << " enum {\n NoRegister,\n";
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for (unsigned i = 0, e = Registers.size(); i != e; ++i)
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OS << " " << Registers[i]->getName() << ",\n";
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OS << " " << Registers[i]->getName() << ",\t// " << i+1 << "\n";
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OS << " };\n";
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if (!Namespace.empty())
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OS << "}\n";
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}
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void RegisterInfoEmitter::runHeader(std::ostream &OS) {
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static Record *getRegisterInfo(RecordKeeper &RC) {
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std::vector<Record*> RegisterInfos =
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Records.getAllDerivedDefinitions("RegisterInfo");
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if (RegisterInfos.size() != 1)
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throw std::string("ERROR: Multiple subclasses of RegisterInfo defined!");
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return RegisterInfos[0];
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}
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void RegisterInfoEmitter::runHeader(std::ostream &OS) {
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EmitSourceHeader("Register Information Header Fragment", OS);
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std::string ClassName = RegisterInfos[0]->getValueAsString("ClassName");
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std::string ClassName =
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getRegisterInfo(Records)->getValueAsString("ClassName");
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OS << "#include \"llvm/Target/MRegisterInfo.h\"\n\n";
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OS << "struct " << ClassName << " : public MRegisterInfo {\n"
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<< " " << ClassName << "();\n"
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<< " " << ClassName
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<< "(int CallFrameSetupOpcode = -1, int CallFrameDestroyOpcode = -1);\n"
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<< " const unsigned* getCalleeSaveRegs() const;\n"
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<< "};\n\n";
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}
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static std::string getQualifiedRecordName(Record *R) {
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static std::string getQualifiedName(Record *R) {
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std::string Namespace = R->getValueAsString("Namespace");
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if (Namespace.empty()) return R->getName();
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return Namespace + "::" + R->getName();
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@ -82,10 +87,11 @@ void RegisterInfoEmitter::run(std::ostream &OS) {
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Record *RegisterClass = Records.getClass("Register");
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std::set<Record*> RegistersFound;
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std::vector<std::string> RegClassNames;
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// Loop over all of the register classes... emitting each one.
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OS << "namespace { // Register classes...\n";
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std::vector<std::string> RegisterClassNames;
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for (unsigned rc = 0, e = RegisterClasses.size(); rc != e; ++rc) {
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Record *RC = RegisterClasses[rc];
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std::string Name = RC->getName();
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@ -94,6 +100,8 @@ void RegisterInfoEmitter::run(std::ostream &OS) {
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Name = "AnonRegClass_"+utostr(AnonCounter++);
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}
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RegClassNames.push_back(Name);
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// Emit the register list now...
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OS << " // " << Name << " Register Class...\n const unsigned " << Name
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<< "[] = {\n ";
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@ -106,7 +114,8 @@ void RegisterInfoEmitter::run(std::ostream &OS) {
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if (RegistersFound.count(Reg))
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throw "Register '" + Reg->getName() +
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"' included in multiple register classes!";
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OS << getQualifiedRecordName(Reg) << ", ";
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RegistersFound.insert(Reg);
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OS << getQualifiedName(Reg) << ", ";
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}
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OS << "\n };\n\n";
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@ -123,8 +132,86 @@ void RegisterInfoEmitter::run(std::ostream &OS) {
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RC->getName() + "'!";
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OS << " } " << Name << "Instance;\n\n";
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}
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OS << "}\n"; // End of anonymous namespace...
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OS << " const TargetRegisterClass* const RegisterClasses[] = {\n";
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for (unsigned i = 0, e = RegClassNames.size(); i != e; ++i)
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OS << " &" << RegClassNames[i] << "Instance,\n";
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OS << " };\n";
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// Emit register class aliases...
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std::vector<Record*> RegisterAliasesRecs =
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Records.getAllDerivedDefinitions("RegisterAliases");
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std::map<Record*, std::set<Record*> > RegisterAliases;
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for (unsigned i = 0, e = RegisterAliasesRecs.size(); i != e; ++i) {
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Record *AS = RegisterAliasesRecs[i];
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Record *R = AS->getValueAsDef("Reg");
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ListInit *LI = AS->getValueAsListInit("Aliases");
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// Add information that R aliases all of the elements in the list... and
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// that everything in the list aliases R.
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for (unsigned j = 0, e = LI->getSize(); j != e; ++j) {
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if (RegisterAliases[R].count(LI->getElement(j)))
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std::cerr << "Warning: register alias between " << getQualifiedName(R)
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<< " and " << getQualifiedName(LI->getElement(j))
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<< " specified multiple times!\n";
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RegisterAliases[R].insert(LI->getElement(j));
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if (RegisterAliases[LI->getElement(j)].count(R))
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std::cerr << "Warning: register alias between " << getQualifiedName(R)
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<< " and " << getQualifiedName(LI->getElement(j))
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<< " specified multiple times!\n";
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RegisterAliases[LI->getElement(j)].insert(R);
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}
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}
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if (!RegisterAliases.empty())
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OS << "\n\n // Register Alias Sets...\n";
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// Loop over all of the registers which have aliases, emitting the alias list
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// to memory.
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for (std::map<Record*, std::set<Record*> >::iterator
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I = RegisterAliases.begin(), E = RegisterAliases.end(); I != E; ++I) {
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OS << " const unsigned " << I->first->getName() << "_AliasSet[] = { ";
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for (std::set<Record*>::iterator ASI = I->second.begin(),
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E = I->second.end(); ASI != E; ++ASI)
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OS << getQualifiedName(*ASI) << ", ";
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OS << "0 };\n";
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}
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OS << "\n const MRegisterDesc RegisterDescriptors[] = { // Descriptors\n";
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OS << " { \"NOREG\",\t0,\t\t0,\t0 },\n";
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// Now that register alias sets have been emitted, emit the register
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// descriptors now.
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for (unsigned i = 0, e = Registers.size(); i != e; ++i) {
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Record *Reg = Registers[i];
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OS << " { \"" << Reg->getName() << "\",\t";
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if (RegisterAliases.count(Reg))
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OS << Reg->getName() << "_AliasSet,\t";
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else
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OS << "0,\t\t";
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OS << "0, 0 },\n";
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}
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OS << " };\n"; // End of register descriptors...
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OS << "}\n\n"; // End of anonymous namespace...
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Record *RegisterInfo = getRegisterInfo(Records);
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std::string ClassName = RegisterInfo->getValueAsString("ClassName");
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// Emit the constructor of the class...
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OS << ClassName << "::" << ClassName
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<< "(int CallFrameSetupOpcode, int CallFrameDestroyOpcode)\n"
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<< " : MRegisterInfo(RegisterDescriptors, " << Registers.size()+1
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<< ", RegisterClasses, RegisterClasses+" << RegClassNames.size() << ",\n "
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<< " CallFrameSetupOpcode, CallFrameDestroyOpcode) {}\n\n";
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// Emit the getCalleeSaveRegs method...
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OS << "const unsigned* " << ClassName << "::getCalleeSaveRegs() const {\n"
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<< " static const unsigned CalleeSaveRegs[] = {\n ";
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ListInit *LI = RegisterInfo->getValueAsListInit("CalleeSavedRegisters");
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for (unsigned i = 0, e = LI->getSize(); i != e; ++i)
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OS << getQualifiedName(LI->getElement(i)) << ", ";
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OS << " 0\n };\n return CalleeSaveRegs;\n}\n\n";
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}
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