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Emit itinerary class in instruction info.

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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@24122 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Jim Laskey 2005-10-31 17:16:46 +00:00
parent 10b1dd99f3
commit b5a0c0ee05
2 changed files with 39 additions and 2 deletions
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34
utils/TableGen/InstrInfoEmitter.cpp
View File

@ -76,6 +76,8 @@ static std::vector<Record*> GetOperandInfo(const CodeGenInstruction &Inst) {
// run - Emit the main instruction description records for the target...
void InstrInfoEmitter::run(std::ostream &OS) {
GatherItinClasses();
EmitSourceFileHeader("Target Instruction Descriptors", OS);
OS << "namespace llvm {\n\n";
@ -168,7 +170,13 @@ void InstrInfoEmitter::emitRecord(const CodeGenInstruction &Inst, unsigned Num,
OS << Inst.TheDef->getName();
else
OS << Inst.Name;
OS << "\",\t" << NumOperands << ", -1, 0, false, 0, 0, 0, 0";
unsigned ItinClass = !IsItineraries ? 0 :
ItinClassNumber(Inst.TheDef->getValueAsDef("Itinerary")->getName());
OS << "\",\t" << NumOperands << ", -1, 0, false, 0, 0, "
<< ItinClass
<< ", 0";
// Emit all of the target indepedent flags...
if (Inst.isReturn) OS << "|M_RET_FLAG";
@ -222,6 +230,30 @@ void InstrInfoEmitter::emitRecord(const CodeGenInstruction &Inst, unsigned Num,
OS << " }, // Inst #" << Num << " = " << Inst.TheDef->getName() << "\n";
}
struct LessRecord {
bool operator()(const Record *Rec1, const Record *Rec2) const {
return Rec1->getName() < Rec2->getName();
}
};
void InstrInfoEmitter::GatherItinClasses() {
std::vector<Record*> DefList =
Records.getAllDerivedDefinitions("InstrItinClass");
IsItineraries = !DefList.empty();
if (!IsItineraries) return;
sort(DefList.begin(), DefList.end(), LessRecord());
for (unsigned i = 0, N = DefList.size(); i < N; i++) {
Record *Def = DefList[i];
ItinClassMap[Def->getName()] = i + 1;
}
}
unsigned InstrInfoEmitter::ItinClassNumber(std::string ItinName) {
return ItinClassMap[ItinName];
}
void InstrInfoEmitter::emitShiftedValue(Record *R, StringInit *Val,
IntInit *ShiftInt, std::ostream &OS) {
if (Val == 0 || ShiftInt == 0)

7
utils/TableGen/InstrInfoEmitter.h
View File

@ -28,8 +28,11 @@ struct CodeGenInstruction;
class InstrInfoEmitter : public TableGenBackend {
RecordKeeper &Records;
bool IsItineraries;
std::map<std::string, unsigned> ItinClassMap;
public:
InstrInfoEmitter(RecordKeeper &R) : Records(R) {}
InstrInfoEmitter(RecordKeeper &R) : Records(R), IsItineraries(false) {}
// run - Output the instruction set description, returning true on failure.
void run(std::ostream &OS);
@ -44,6 +47,8 @@ private:
std::map<std::vector<Record*>, unsigned> &EL,
std::map<std::vector<Record*>, unsigned> &OpInfo,
std::ostream &OS);
void GatherItinClasses();
unsigned ItinClassNumber(std::string ItinName);
void emitShiftedValue(Record *R, StringInit *Val, IntInit *Shift,
std::ostream &OS);
};