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-rw-r--r--utils/TableGen/TGParser.h122
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diff --git a/utils/TableGen/TGParser.h b/utils/TableGen/TGParser.h
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-//===- TGParser.h - Parser for TableGen Files -------------------*- C++ -*-===//
-//
-// The LLVM Compiler Infrastructure
-//
-// This file is distributed under the University of Illinois Open Source
-// License. See LICENSE.TXT for details.
-//
-//===----------------------------------------------------------------------===//
-//
-// This class represents the Parser for tablegen files.
-//
-//===----------------------------------------------------------------------===//
-
-#ifndef TGPARSER_H
-#define TGPARSER_H
-
-#include "TGLexer.h"
-#include "Error.h"
-#include "llvm/ADT/Twine.h"
-#include "llvm/Support/SourceMgr.h"
-#include <map>
-
-namespace llvm {
- class Record;
- class RecordVal;
- class RecordKeeper;
- struct 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) {
- }
- };
-
-class TGParser {
- TGLexer Lex;
- std::vector<std::vector<LetRecord> > LetStack;
- std::map<std::string, MultiClass*> MultiClasses;
-
- /// CurMultiClass - If we are parsing a 'multiclass' definition, this is the
- /// current value.
- MultiClass *CurMultiClass;
-
- // Record tracker
- RecordKeeper &Records;
-public:
- TGParser(SourceMgr &SrcMgr, RecordKeeper &records) :
- Lex(SrcMgr), CurMultiClass(0), Records(records) {}
-
- /// ParseFile - Main entrypoint for parsing a tblgen file. These parser
- /// routines return true on error, or false on success.
- 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 std::vector<std::string> &getDependencies() const {
- return Lex.getDependencies();
- }
-private: // Semantic analysis methods.
- bool AddValue(Record *TheRec, SMLoc Loc, const RecordVal &RV);
- bool SetValue(Record *TheRec, SMLoc Loc, const std::string &ValName,
- const std::vector<unsigned> &BitList, Init *V);
- bool AddSubClass(Record *Rec, SubClassReference &SubClass);
- bool AddSubMultiClass(MultiClass *CurMC,
- SubMultiClassReference &SubMultiClass);
-
-private: // Parser methods.
- bool ParseObjectList(MultiClass *MC = 0);
- bool ParseObject(MultiClass *MC);
- bool ParseClass();
- bool ParseMultiClass();
- bool ParseDefm(MultiClass *CurMultiClass);
- bool ParseDef(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);
- std::string ParseDeclaration(Record *CurRec, bool ParsingTemplateArgs);
-
- SubClassReference ParseSubClassReference(Record *CurRec, bool isDefm);
- SubMultiClassReference ParseSubMultiClassReference(MultiClass *CurMC);
-
- Init *ParseIDValue(Record *CurRec);
- Init *ParseIDValue(Record *CurRec, const std::string &Name, SMLoc NameLoc);
- Init *ParseSimpleValue(Record *CurRec, RecTy *ItemType = 0);
- Init *ParseValue(Record *CurRec, RecTy *ItemType = 0);
- std::vector<Init*> ParseValueList(Record *CurRec, Record *ArgsRec = 0, RecTy *EltTy = 0);
- 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 *ParseOperatorType();
- std::string ParseObjectName();
- Record *ParseClassID();
- MultiClass *ParseMultiClassID();
- Record *ParseDefmID();
-};
-
-} // end namespace llvm
-
-#endif
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