#ifndef LLVM_LIB_TABLEGEN_TGPARSER_H
#define LLVM_LIB_TABLEGEN_TGPARSER_H
#include "TGLexer.h"
#include "llvm/ADT/Twine.h"
#include "llvm/Support/SourceMgr.h"
#include "llvm/TableGen/Error.h"
#include "llvm/TableGen/Record.h"
#include <map>
namespace llvm {
class Record;
class RecordVal;
class RecordKeeper;
class RecTy;
class Init;
struct MultiClass;
struct SubClassReference;
struct SubMultiClassReference;
struct LetRecord {
std::string Name;
std::vector<unsigned> Bits;
Init *Value;
SMLoc Loc;
LetRecord(const std::string &N, const std::vector<unsigned> &B, Init *V,
SMLoc L)
: Name(N), Bits(B), Value(V), Loc(L) {
}
};
struct ForeachLoop {
VarInit *IterVar;
ListInit *ListValue;
ForeachLoop(VarInit *IVar, ListInit *LValue)
: IterVar(IVar), ListValue(LValue) {}
};
class TGParser {
TGLexer Lex;
std::vector<std::vector<LetRecord> > LetStack;
std::map<std::string, std::unique_ptr<MultiClass>> MultiClasses;
typedef std::vector<ForeachLoop> LoopVector;
LoopVector Loops;
MultiClass *CurMultiClass;
RecordKeeper &Records;
unsigned AnonCounter;
enum IDParseMode {
ParseValueMode, ParseNameMode, ParseForeachMode };
public:
TGParser(SourceMgr &SrcMgr, RecordKeeper &records)
: Lex(SrcMgr), CurMultiClass(nullptr), Records(records), AnonCounter(0) {}
bool ParseFile();
bool Error(SMLoc L, const Twine &Msg) const {
PrintError(L, Msg);
return true;
}
bool TokError(const Twine &Msg) const {
return Error(Lex.getLoc(), Msg);
}
const TGLexer::DependenciesMapTy &getDependencies() const {
return Lex.getDependencies();
}
private: bool AddValue(Record *TheRec, SMLoc Loc, const RecordVal &RV);
bool SetValue(Record *TheRec, SMLoc Loc, Init *ValName,
const std::vector<unsigned> &BitList, Init *V);
bool SetValue(Record *TheRec, SMLoc Loc, const std::string &ValName,
const std::vector<unsigned> &BitList, Init *V) {
return SetValue(TheRec, Loc, StringInit::get(ValName), BitList, V);
}
bool AddSubClass(Record *Rec, SubClassReference &SubClass);
bool AddSubMultiClass(MultiClass *CurMC,
SubMultiClassReference &SubMultiClass);
std::string GetNewAnonymousName();
struct IterRecord {
VarInit *IterVar;
Init *IterValue;
IterRecord(VarInit *Var, Init *Val) : IterVar(Var), IterValue(Val) {}
};
typedef std::vector<IterRecord> IterSet;
bool ProcessForeachDefs(Record *CurRec, SMLoc Loc);
bool ProcessForeachDefs(Record *CurRec, SMLoc Loc, IterSet &IterVals);
private: bool ParseObjectList(MultiClass *MC = nullptr);
bool ParseObject(MultiClass *MC);
bool ParseClass();
bool ParseMultiClass();
Record *InstantiateMulticlassDef(MultiClass &MC,
Record *DefProto,
Init *&DefmPrefix,
SMRange DefmPrefixRange);
bool ResolveMulticlassDefArgs(MultiClass &MC,
Record *DefProto,
SMLoc DefmPrefixLoc,
SMLoc SubClassLoc,
const std::vector<Init *> &TArgs,
std::vector<Init *> &TemplateVals,
bool DeleteArgs);
bool ResolveMulticlassDef(MultiClass &MC,
Record *CurRec,
Record *DefProto,
SMLoc DefmPrefixLoc);
bool ParseDefm(MultiClass *CurMultiClass);
bool ParseDef(MultiClass *CurMultiClass);
bool ParseForeach(MultiClass *CurMultiClass);
bool ParseTopLevelLet(MultiClass *CurMultiClass);
std::vector<LetRecord> ParseLetList();
bool ParseObjectBody(Record *CurRec);
bool ParseBody(Record *CurRec);
bool ParseBodyItem(Record *CurRec);
bool ParseTemplateArgList(Record *CurRec);
Init *ParseDeclaration(Record *CurRec, bool ParsingTemplateArgs);
VarInit *ParseForeachDeclaration(ListInit *&ForeachListValue);
SubClassReference ParseSubClassReference(Record *CurRec, bool isDefm);
SubMultiClassReference ParseSubMultiClassReference(MultiClass *CurMC);
Init *ParseIDValue(Record *CurRec, const std::string &Name, SMLoc NameLoc,
IDParseMode Mode = ParseValueMode);
Init *ParseSimpleValue(Record *CurRec, RecTy *ItemType = nullptr,
IDParseMode Mode = ParseValueMode);
Init *ParseValue(Record *CurRec, RecTy *ItemType = nullptr,
IDParseMode Mode = ParseValueMode);
std::vector<Init*> ParseValueList(Record *CurRec, Record *ArgsRec = nullptr,
RecTy *EltTy = nullptr);
std::vector<std::pair<llvm::Init*, std::string> > ParseDagArgList(Record *);
bool ParseOptionalRangeList(std::vector<unsigned> &Ranges);
bool ParseOptionalBitList(std::vector<unsigned> &Ranges);
std::vector<unsigned> ParseRangeList();
bool ParseRangePiece(std::vector<unsigned> &Ranges);
RecTy *ParseType();
Init *ParseOperation(Record *CurRec, RecTy *ItemType);
RecTy *ParseOperatorType();
Init *ParseObjectName(MultiClass *CurMultiClass);
Record *ParseClassID();
MultiClass *ParseMultiClassID();
bool ApplyLetStack(Record *CurRec);
};
}
#endif