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-rw-r--r--utils/TableGen/InstrInfoEmitter.cpp246
1 files changed, 138 insertions, 108 deletions
diff --git a/utils/TableGen/InstrInfoEmitter.cpp b/utils/TableGen/InstrInfoEmitter.cpp
index 67cce0e..5ebaf17 100644
--- a/utils/TableGen/InstrInfoEmitter.cpp
+++ b/utils/TableGen/InstrInfoEmitter.cpp
@@ -27,14 +27,6 @@ static void PrintDefList(const std::vector<Record*> &Uses,
OS << "0 };\n";
}
-static void PrintBarriers(std::vector<Record*> &Barriers,
- unsigned Num, raw_ostream &OS) {
- OS << "static const TargetRegisterClass* Barriers" << Num << "[] = { ";
- for (unsigned i = 0, e = Barriers.size(); i != e; ++i)
- OS << "&" << getQualifiedName(Barriers[i]) << "RegClass, ";
- OS << "NULL };\n";
-}
-
//===----------------------------------------------------------------------===//
// Instruction Itinerary Information.
//===----------------------------------------------------------------------===//
@@ -43,10 +35,10 @@ void InstrInfoEmitter::GatherItinClasses() {
std::vector<Record*> DefList =
Records.getAllDerivedDefinitions("InstrItinClass");
std::sort(DefList.begin(), DefList.end(), LessRecord());
-
+
for (unsigned i = 0, N = DefList.size(); i < N; i++)
ItinClassMap[DefList[i]->getName()] = i;
-}
+}
unsigned InstrInfoEmitter::getItinClassNumber(const Record *InstRec) {
return ItinClassMap[InstRec->getValueAsDef("Itinerary")->getName()];
@@ -59,7 +51,7 @@ unsigned InstrInfoEmitter::getItinClassNumber(const Record *InstRec) {
std::vector<std::string>
InstrInfoEmitter::GetOperandInfo(const CodeGenInstruction &Inst) {
std::vector<std::string> Result;
-
+
for (unsigned i = 0, e = Inst.Operands.size(); i != e; ++i) {
// Handle aggregate operands and normal operands the same way by expanding
// either case into a list of operands for this op.
@@ -70,7 +62,7 @@ InstrInfoEmitter::GetOperandInfo(const CodeGenInstruction &Inst) {
// operand, which has a single operand, but no declared class for the
// operand.
DagInit *MIOI = Inst.Operands[i].MIOperandInfo;
-
+
if (!MIOI || MIOI->getNumArgs() == 0) {
// Single, anonymous, operand.
OperandList.push_back(Inst.Operands[i]);
@@ -86,7 +78,9 @@ InstrInfoEmitter::GetOperandInfo(const CodeGenInstruction &Inst) {
for (unsigned j = 0, e = OperandList.size(); j != e; ++j) {
Record *OpR = OperandList[j].Rec;
std::string Res;
-
+
+ if (OpR->isSubClassOf("RegisterOperand"))
+ OpR = OpR->getValueAsDef("RegClass");
if (OpR->isSubClassOf("RegisterClass"))
Res += getQualifiedName(OpR) + "RegClassID, ";
else if (OpR->isSubClassOf("PointerLikeRegClass"))
@@ -94,39 +88,44 @@ InstrInfoEmitter::GetOperandInfo(const CodeGenInstruction &Inst) {
else
// -1 means the operand does not have a fixed register class.
Res += "-1, ";
-
+
// Fill in applicable flags.
Res += "0";
-
+
// Ptr value whose register class is resolved via callback.
if (OpR->isSubClassOf("PointerLikeRegClass"))
- Res += "|(1<<TOI::LookupPtrRegClass)";
+ Res += "|(1<<MCOI::LookupPtrRegClass)";
// Predicate operands. Check to see if the original unexpanded operand
// was of type PredicateOperand.
if (Inst.Operands[i].Rec->isSubClassOf("PredicateOperand"))
- Res += "|(1<<TOI::Predicate)";
-
+ Res += "|(1<<MCOI::Predicate)";
+
// Optional def operands. Check to see if the original unexpanded operand
// was of type OptionalDefOperand.
if (Inst.Operands[i].Rec->isSubClassOf("OptionalDefOperand"))
- Res += "|(1<<TOI::OptionalDef)";
+ Res += "|(1<<MCOI::OptionalDef)";
// Fill in constraint info.
Res += ", ";
-
+
const CGIOperandList::ConstraintInfo &Constraint =
Inst.Operands[i].Constraints[j];
if (Constraint.isNone())
Res += "0";
else if (Constraint.isEarlyClobber())
- Res += "(1 << TOI::EARLY_CLOBBER)";
+ Res += "(1 << MCOI::EARLY_CLOBBER)";
else {
assert(Constraint.isTied());
Res += "((" + utostr(Constraint.getTiedOperand()) +
- " << 16) | (1 << TOI::TIED_TO))";
+ " << 16) | (1 << MCOI::TIED_TO))";
}
-
+
+ // Fill in operand type.
+ Res += ", MCOI::";
+ assert(!Inst.Operands[i].OperandType.empty() && "Invalid operand type.");
+ Res += Inst.Operands[i].OperandType;
+
Result.push_back(Res);
}
}
@@ -134,12 +133,12 @@ InstrInfoEmitter::GetOperandInfo(const CodeGenInstruction &Inst) {
return Result;
}
-void InstrInfoEmitter::EmitOperandInfo(raw_ostream &OS,
+void InstrInfoEmitter::EmitOperandInfo(raw_ostream &OS,
OperandInfoMapTy &OperandInfoIDs) {
// ID #0 is for no operand info.
unsigned OperandListNum = 0;
OperandInfoIDs[std::vector<std::string>()] = ++OperandListNum;
-
+
OS << "\n";
const CodeGenTarget &Target = CDP.getTargetInfo();
for (CodeGenTarget::inst_iterator II = Target.inst_begin(),
@@ -147,65 +146,40 @@ void InstrInfoEmitter::EmitOperandInfo(raw_ostream &OS,
std::vector<std::string> OperandInfo = GetOperandInfo(**II);
unsigned &N = OperandInfoIDs[OperandInfo];
if (N != 0) continue;
-
+
N = ++OperandListNum;
- OS << "static const TargetOperandInfo OperandInfo" << N << "[] = { ";
+ OS << "static const MCOperandInfo OperandInfo" << N << "[] = { ";
for (unsigned i = 0, e = OperandInfo.size(); i != e; ++i)
OS << "{ " << OperandInfo[i] << " }, ";
OS << "};\n";
}
}
-void InstrInfoEmitter::DetectRegisterClassBarriers(std::vector<Record*> &Defs,
- const std::vector<CodeGenRegisterClass> &RCs,
- std::vector<Record*> &Barriers) {
- std::set<Record*> DefSet;
- unsigned NumDefs = Defs.size();
- for (unsigned i = 0; i < NumDefs; ++i)
- DefSet.insert(Defs[i]);
-
- for (unsigned i = 0, e = RCs.size(); i != e; ++i) {
- const CodeGenRegisterClass &RC = RCs[i];
- unsigned NumRegs = RC.Elements.size();
- if (NumRegs > NumDefs)
- continue; // Can't possibly clobber this RC.
-
- bool Clobber = true;
- for (unsigned j = 0; j < NumRegs; ++j) {
- Record *Reg = RC.Elements[j];
- if (!DefSet.count(Reg)) {
- Clobber = false;
- break;
- }
- }
- if (Clobber)
- Barriers.push_back(RC.TheDef);
- }
-}
-
//===----------------------------------------------------------------------===//
// Main Output.
//===----------------------------------------------------------------------===//
// run - Emit the main instruction description records for the target...
void InstrInfoEmitter::run(raw_ostream &OS) {
+ emitEnums(OS);
+
GatherItinClasses();
EmitSourceFileHeader("Target Instruction Descriptors", OS);
+
+ OS << "\n#ifdef GET_INSTRINFO_MC_DESC\n";
+ OS << "#undef GET_INSTRINFO_MC_DESC\n";
+
OS << "namespace llvm {\n\n";
CodeGenTarget &Target = CDP.getTargetInfo();
const std::string &TargetName = Target.getName();
Record *InstrInfo = Target.getInstructionSet();
- const std::vector<CodeGenRegisterClass> &RCs = Target.getRegisterClasses();
// Keep track of all of the def lists we have emitted already.
std::map<std::vector<Record*>, unsigned> EmittedLists;
unsigned ListNumber = 0;
- std::map<std::vector<Record*>, unsigned> EmittedBarriers;
- unsigned BarrierNumber = 0;
- std::map<Record*, unsigned> BarriersMap;
-
+
// Emit all of the instruction's implicit uses and defs.
for (CodeGenTarget::inst_iterator II = Target.inst_begin(),
E = Target.inst_end(); II != E; ++II) {
@@ -217,42 +191,67 @@ void InstrInfoEmitter::run(raw_ostream &OS) {
}
std::vector<Record*> Defs = Inst->getValueAsListOfDefs("Defs");
if (!Defs.empty()) {
- std::vector<Record*> RCBarriers;
- DetectRegisterClassBarriers(Defs, RCs, RCBarriers);
- if (!RCBarriers.empty()) {
- unsigned &IB = EmittedBarriers[RCBarriers];
- if (!IB) PrintBarriers(RCBarriers, IB = ++BarrierNumber, OS);
- BarriersMap.insert(std::make_pair(Inst, IB));
- }
-
unsigned &IL = EmittedLists[Defs];
if (!IL) PrintDefList(Defs, IL = ++ListNumber, OS);
}
}
OperandInfoMapTy OperandInfoIDs;
-
+
// Emit all of the operand info records.
EmitOperandInfo(OS, OperandInfoIDs);
-
- // Emit all of the TargetInstrDesc records in their ENUM ordering.
+
+ // Emit all of the MCInstrDesc records in their ENUM ordering.
//
- OS << "\nstatic const TargetInstrDesc " << TargetName
- << "Insts[] = {\n";
+ OS << "\nMCInstrDesc " << TargetName << "Insts[] = {\n";
const std::vector<const CodeGenInstruction*> &NumberedInstructions =
Target.getInstructionsByEnumValue();
for (unsigned i = 0, e = NumberedInstructions.size(); i != e; ++i)
emitRecord(*NumberedInstructions[i], i, InstrInfo, EmittedLists,
- BarriersMap, OperandInfoIDs, OS);
- OS << "};\n";
+ OperandInfoIDs, OS);
+ OS << "};\n\n";
+
+ // MCInstrInfo initialization routine.
+ OS << "static inline void Init" << TargetName
+ << "MCInstrInfo(MCInstrInfo *II) {\n";
+ OS << " II->InitMCInstrInfo(" << TargetName << "Insts, "
+ << NumberedInstructions.size() << ");\n}\n\n";
+
+ OS << "} // End llvm namespace \n";
+
+ OS << "#endif // GET_INSTRINFO_MC_DESC\n\n";
+
+ // Create a TargetInstrInfo subclass to hide the MC layer initialization.
+ OS << "\n#ifdef GET_INSTRINFO_HEADER\n";
+ OS << "#undef GET_INSTRINFO_HEADER\n";
+
+ std::string ClassName = TargetName + "GenInstrInfo";
+ OS << "namespace llvm {\n";
+ OS << "struct " << ClassName << " : public TargetInstrInfoImpl {\n"
+ << " explicit " << ClassName << "(int SO = -1, int DO = -1);\n"
+ << "};\n";
+ OS << "} // End llvm namespace \n";
+
+ OS << "#endif // GET_INSTRINFO_HEADER\n\n";
+
+ OS << "\n#ifdef GET_INSTRINFO_CTOR\n";
+ OS << "#undef GET_INSTRINFO_CTOR\n";
+
+ OS << "namespace llvm {\n";
+ OS << "extern MCInstrDesc " << TargetName << "Insts[];\n";
+ OS << ClassName << "::" << ClassName << "(int SO, int DO)\n"
+ << " : TargetInstrInfoImpl(SO, DO) {\n"
+ << " InitMCInstrInfo(" << TargetName << "Insts, "
+ << NumberedInstructions.size() << ");\n}\n";
OS << "} // End llvm namespace \n";
+
+ OS << "#endif // GET_INSTRINFO_CTOR\n\n";
}
void InstrInfoEmitter::emitRecord(const CodeGenInstruction &Inst, unsigned Num,
Record *InstrInfo,
std::map<std::vector<Record*>, unsigned> &EmittedLists,
- std::map<Record*, unsigned> &BarriersMap,
const OperandInfoMapTy &OpInfo,
raw_ostream &OS) {
int MinOperands = 0;
@@ -263,35 +262,37 @@ void InstrInfoEmitter::emitRecord(const CodeGenInstruction &Inst, unsigned Num,
OS << " { ";
OS << Num << ",\t" << MinOperands << ",\t"
- << Inst.Operands.NumDefs << ",\t" << getItinClassNumber(Inst.TheDef)
- << ",\t\"" << Inst.TheDef->getName() << "\", 0";
+ << Inst.Operands.NumDefs << ",\t"
+ << getItinClassNumber(Inst.TheDef) << ",\t"
+ << Inst.TheDef->getValueAsInt("Size") << ",\t\""
+ << Inst.TheDef->getName() << "\", 0";
// Emit all of the target indepedent flags...
- if (Inst.isReturn) OS << "|(1<<TID::Return)";
- if (Inst.isBranch) OS << "|(1<<TID::Branch)";
- if (Inst.isIndirectBranch) OS << "|(1<<TID::IndirectBranch)";
- if (Inst.isCompare) OS << "|(1<<TID::Compare)";
- if (Inst.isMoveImm) OS << "|(1<<TID::MoveImm)";
- if (Inst.isBitcast) OS << "|(1<<TID::Bitcast)";
- if (Inst.isBarrier) OS << "|(1<<TID::Barrier)";
- if (Inst.hasDelaySlot) OS << "|(1<<TID::DelaySlot)";
- if (Inst.isCall) OS << "|(1<<TID::Call)";
- if (Inst.canFoldAsLoad) OS << "|(1<<TID::FoldableAsLoad)";
- if (Inst.mayLoad) OS << "|(1<<TID::MayLoad)";
- if (Inst.mayStore) OS << "|(1<<TID::MayStore)";
- if (Inst.isPredicable) OS << "|(1<<TID::Predicable)";
- if (Inst.isConvertibleToThreeAddress) OS << "|(1<<TID::ConvertibleTo3Addr)";
- if (Inst.isCommutable) OS << "|(1<<TID::Commutable)";
- if (Inst.isTerminator) OS << "|(1<<TID::Terminator)";
- if (Inst.isReMaterializable) OS << "|(1<<TID::Rematerializable)";
- if (Inst.isNotDuplicable) OS << "|(1<<TID::NotDuplicable)";
- if (Inst.Operands.hasOptionalDef) OS << "|(1<<TID::HasOptionalDef)";
- if (Inst.usesCustomInserter) OS << "|(1<<TID::UsesCustomInserter)";
- if (Inst.Operands.isVariadic)OS << "|(1<<TID::Variadic)";
- if (Inst.hasSideEffects) OS << "|(1<<TID::UnmodeledSideEffects)";
- if (Inst.isAsCheapAsAMove) OS << "|(1<<TID::CheapAsAMove)";
- if (Inst.hasExtraSrcRegAllocReq) OS << "|(1<<TID::ExtraSrcRegAllocReq)";
- if (Inst.hasExtraDefRegAllocReq) OS << "|(1<<TID::ExtraDefRegAllocReq)";
+ if (Inst.isReturn) OS << "|(1<<MCID::Return)";
+ if (Inst.isBranch) OS << "|(1<<MCID::Branch)";
+ if (Inst.isIndirectBranch) OS << "|(1<<MCID::IndirectBranch)";
+ if (Inst.isCompare) OS << "|(1<<MCID::Compare)";
+ if (Inst.isMoveImm) OS << "|(1<<MCID::MoveImm)";
+ if (Inst.isBitcast) OS << "|(1<<MCID::Bitcast)";
+ if (Inst.isBarrier) OS << "|(1<<MCID::Barrier)";
+ if (Inst.hasDelaySlot) OS << "|(1<<MCID::DelaySlot)";
+ if (Inst.isCall) OS << "|(1<<MCID::Call)";
+ if (Inst.canFoldAsLoad) OS << "|(1<<MCID::FoldableAsLoad)";
+ if (Inst.mayLoad) OS << "|(1<<MCID::MayLoad)";
+ if (Inst.mayStore) OS << "|(1<<MCID::MayStore)";
+ if (Inst.isPredicable) OS << "|(1<<MCID::Predicable)";
+ if (Inst.isConvertibleToThreeAddress) OS << "|(1<<MCID::ConvertibleTo3Addr)";
+ if (Inst.isCommutable) OS << "|(1<<MCID::Commutable)";
+ if (Inst.isTerminator) OS << "|(1<<MCID::Terminator)";
+ if (Inst.isReMaterializable) OS << "|(1<<MCID::Rematerializable)";
+ if (Inst.isNotDuplicable) OS << "|(1<<MCID::NotDuplicable)";
+ if (Inst.Operands.hasOptionalDef) OS << "|(1<<MCID::HasOptionalDef)";
+ if (Inst.usesCustomInserter) OS << "|(1<<MCID::UsesCustomInserter)";
+ if (Inst.Operands.isVariadic)OS << "|(1<<MCID::Variadic)";
+ if (Inst.hasSideEffects) OS << "|(1<<MCID::UnmodeledSideEffects)";
+ if (Inst.isAsCheapAsAMove) OS << "|(1<<MCID::CheapAsAMove)";
+ if (Inst.hasExtraSrcRegAllocReq) OS << "|(1<<MCID::ExtraSrcRegAllocReq)";
+ if (Inst.hasExtraDefRegAllocReq) OS << "|(1<<MCID::ExtraDefRegAllocReq)";
// Emit all of the target-specific flags...
BitsInit *TSF = Inst.TheDef->getValueAsBitsInit("TSFlags");
@@ -320,12 +321,6 @@ void InstrInfoEmitter::emitRecord(const CodeGenInstruction &Inst, unsigned Num,
else
OS << "ImplicitList" << EmittedLists[DefList] << ", ";
- std::map<Record*, unsigned>::iterator BI = BarriersMap.find(Inst.TheDef);
- if (BI == BarriersMap.end())
- OS << "NULL, ";
- else
- OS << "Barriers" << BI->second << ", ";
-
// Emit the operand info.
std::vector<std::string> OperandInfo = GetOperandInfo(Inst);
if (OperandInfo.empty())
@@ -335,3 +330,38 @@ void InstrInfoEmitter::emitRecord(const CodeGenInstruction &Inst, unsigned Num,
OS << " }, // Inst #" << Num << " = " << Inst.TheDef->getName() << "\n";
}
+
+// emitEnums - Print out enum values for all of the instructions.
+void InstrInfoEmitter::emitEnums(raw_ostream &OS) {
+ EmitSourceFileHeader("Target Instruction Enum Values", OS);
+
+ OS << "\n#ifdef GET_INSTRINFO_ENUM\n";
+ OS << "#undef GET_INSTRINFO_ENUM\n";
+
+ OS << "namespace llvm {\n\n";
+
+ CodeGenTarget Target(Records);
+
+ // We must emit the PHI opcode first...
+ std::string Namespace = Target.getInstNamespace();
+
+ if (Namespace.empty()) {
+ fprintf(stderr, "No instructions defined!\n");
+ exit(1);
+ }
+
+ const std::vector<const CodeGenInstruction*> &NumberedInstructions =
+ Target.getInstructionsByEnumValue();
+
+ OS << "namespace " << Namespace << " {\n";
+ OS << " enum {\n";
+ for (unsigned i = 0, e = NumberedInstructions.size(); i != e; ++i) {
+ OS << " " << NumberedInstructions[i]->TheDef->getName()
+ << "\t= " << i << ",\n";
+ }
+ OS << " INSTRUCTION_LIST_END = " << NumberedInstructions.size() << "\n";
+ OS << " };\n}\n";
+ OS << "} // End llvm namespace \n";
+
+ OS << "#endif // GET_INSTRINFO_ENUM\n\n";
+}
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