X-Git-Url: http://demsky.eecs.uci.edu/git/?a=blobdiff_plain;f=include%2Fllvm%2FMC%2FMCParser%2FMCAsmParser.h;h=34188e66e62dabaeb746aa0244b26e010f0a52d0;hb=26dd2205bacbb6fc6fb10ea77943181dfb4d1298;hp=d7e3902ac478d0e6ac8fc5d5871fbf0d2aecefc3;hpb=3eb6d7fcd024b67d548e4c3a075682d7cff1599e;p=oota-llvm.git diff --git a/include/llvm/MC/MCParser/MCAsmParser.h b/include/llvm/MC/MCParser/MCAsmParser.h index d7e3902ac47..34188e66e62 100644 --- a/include/llvm/MC/MCParser/MCAsmParser.h +++ b/include/llvm/MC/MCParser/MCAsmParser.h @@ -30,21 +30,37 @@ class SMRange; class SourceMgr; class Twine; -/// MCAsmParserSemaCallback - Generic Sema callback for assembly parser. +class InlineAsmIdentifierInfo { +public: + void *OpDecl; + bool IsVarDecl; + unsigned Length, Size, Type; + + void clear() { + OpDecl = nullptr; + IsVarDecl = false; + Length = 1; + Size = 0; + Type = 0; + } +}; + +/// Generic Sema callback for assembly parser. class MCAsmParserSemaCallback { public: - virtual ~MCAsmParserSemaCallback(); - virtual void *LookupInlineAsmIdentifier(StringRef Name, void *Loc, - unsigned &Length, unsigned &Size, - unsigned &Type, bool &IsVarDecl) = 0; + virtual ~MCAsmParserSemaCallback(); + virtual void *LookupInlineAsmIdentifier(StringRef &LineBuf, + InlineAsmIdentifierInfo &Info, + bool IsUnevaluatedContext) = 0; + virtual StringRef LookupInlineAsmLabel(StringRef Identifier, SourceMgr &SM, + SMLoc Location, bool Create) = 0; virtual bool LookupInlineAsmField(StringRef Base, StringRef Member, unsigned &Offset) = 0; }; - -/// MCAsmParser - Generic assembler parser interface, for use by target specific -/// assembly parsers. +/// Generic assembler parser interface, for use by target specific assembly +/// parsers. class MCAsmParser { public: typedef bool (*DirectiveHandler)(MCAsmParserExtension*, StringRef, SMLoc); @@ -71,10 +87,13 @@ public: virtual SourceMgr &getSourceManager() = 0; virtual MCAsmLexer &getLexer() = 0; + const MCAsmLexer &getLexer() const { + return const_cast(this)->getLexer(); + } virtual MCContext &getContext() = 0; - /// getStreamer - Return the output streamer for the assembler. + /// Return the output streamer for the assembler. virtual MCStreamer &getStreamer() = 0; MCTargetAsmParser &getTargetParser() const { return *TargetParser; } @@ -86,48 +105,49 @@ public: bool getShowParsedOperands() const { return ShowParsedOperands; } void setShowParsedOperands(bool Value) { ShowParsedOperands = Value; } - /// Run - Run the parser on the input source buffer. + /// Run the parser on the input source buffer. virtual bool Run(bool NoInitialTextSection, bool NoFinalize = false) = 0; virtual void setParsingInlineAsm(bool V) = 0; virtual bool isParsingInlineAsm() = 0; - /// parseMSInlineAsm - Parse ms-style inline assembly. - virtual bool parseMSInlineAsm(void *AsmLoc, std::string &AsmString, - unsigned &NumOutputs, unsigned &NumInputs, - SmallVectorImpl > &OpDecls, - SmallVectorImpl &Constraints, - SmallVectorImpl &Clobbers, - const MCInstrInfo *MII, - const MCInstPrinter *IP, - MCAsmParserSemaCallback &SI) = 0; - - /// Warning - Emit a warning at the location \p L, with the message \p Msg. + /// Parse ms-style inline assembly. + virtual bool parseMSInlineAsm( + void *AsmLoc, std::string &AsmString, unsigned &NumOutputs, + unsigned &NumInputs, SmallVectorImpl> &OpDecls, + SmallVectorImpl &Constraints, + SmallVectorImpl &Clobbers, const MCInstrInfo *MII, + const MCInstPrinter *IP, MCAsmParserSemaCallback &SI) = 0; + + /// Emit a note at the location \p L, with the message \p Msg. + virtual void Note(SMLoc L, const Twine &Msg, + ArrayRef Ranges = None) = 0; + + /// Emit a warning at the location \p L, with the message \p Msg. /// /// \return The return value is true, if warnings are fatal. virtual bool Warning(SMLoc L, const Twine &Msg, - ArrayRef Ranges = ArrayRef()) = 0; + ArrayRef Ranges = None) = 0; - /// Error - Emit an error at the location \p L, with the message \p Msg. + /// Emit an error at the location \p L, with the message \p Msg. /// /// \return The return value is always true, as an idiomatic convenience to /// clients. virtual bool Error(SMLoc L, const Twine &Msg, - ArrayRef Ranges = ArrayRef()) = 0; + ArrayRef Ranges = None) = 0; - /// Lex - Get the next AsmToken in the stream, possibly handling file - /// inclusion first. + /// Get the next AsmToken in the stream, possibly handling file inclusion + /// first. virtual const AsmToken &Lex() = 0; - /// getTok - Get the current AsmToken from the stream. - const AsmToken &getTok(); + /// Get the current AsmToken from the stream. + const AsmToken &getTok() const; /// \brief Report an error at the current lexer location. - bool TokError(const Twine &Msg, - ArrayRef Ranges = ArrayRef()); + bool TokError(const Twine &Msg, ArrayRef Ranges = None); - /// parseIdentifier - Parse an identifier or string (as a quoted identifier) - /// and set \p Res to the identifier contents. + /// Parse an identifier or string (as a quoted identifier) and set \p Res to + /// the identifier contents. virtual bool parseIdentifier(StringRef &Res) = 0; /// \brief Parse up to the end of statement and return the contents from the @@ -135,15 +155,14 @@ public: /// will be either the EndOfStatement or EOF. virtual StringRef parseStringToEndOfStatement() = 0; - /// parseEscapedString - Parse the current token as a string which may include - /// escaped characters and return the string contents. + /// Parse the current token as a string which may include escaped characters + /// and return the string contents. virtual bool parseEscapedString(std::string &Data) = 0; - /// eatToEndOfStatement - Skip to the end of the current statement, for error - /// recovery. + /// Skip to the end of the current statement, for error recovery. virtual void eatToEndOfStatement() = 0; - /// parseExpression - Parse an arbitrary expression. + /// Parse an arbitrary expression. /// /// @param Res - The value of the expression. The result is undefined /// on error. @@ -151,24 +170,30 @@ public: virtual bool parseExpression(const MCExpr *&Res, SMLoc &EndLoc) = 0; bool parseExpression(const MCExpr *&Res); - /// parseParenExpression - Parse an arbitrary expression, assuming that an - /// initial '(' has already been consumed. + /// Parse a primary expression. + /// + /// @param Res - The value of the expression. The result is undefined + /// on error. + /// @result - False on success. + virtual bool parsePrimaryExpr(const MCExpr *&Res, SMLoc &EndLoc) = 0; + + /// Parse an arbitrary expression, assuming that an initial '(' has already + /// been consumed. /// /// @param Res - The value of the expression. The result is undefined /// on error. /// @result - False on success. virtual bool parseParenExpression(const MCExpr *&Res, SMLoc &EndLoc) = 0; - /// parseAbsoluteExpression - Parse an expression which must evaluate to an - /// absolute value. + /// Parse an expression which must evaluate to an absolute value. /// /// @param Res - The value of the absolute expression. The result is undefined /// on error. /// @result - False on success. virtual bool parseAbsoluteExpression(int64_t &Res) = 0; - /// checkForValidSection - Ensure that we have a valid section set in the - /// streamer. Otherwise, report an error and switch to .text. + /// Ensure that we have a valid section set in the streamer. Otherwise, report + /// an error and switch to .text. virtual void checkForValidSection() = 0; };