MCTargetAsmParser - Generic interface to target specific assembly parsers. More...

#include <MCTargetAsmParser.h>

Inheritance diagram for llvm::MCTargetAsmParser:

Collaboration diagram for llvm::MCTargetAsmParser:

Public Types
enum	MatchResultTy { Match_InvalidOperand, Match_MissingFeature, Match_MnemonicFail, Match_Success, FIRST_TARGET_MATCH_RESULT_TY }
Public Member Functions
virtual	~MCTargetAsmParser ()
uint64_t	getAvailableFeatures () const
void	setAvailableFeatures (uint64_t Value)
bool	isParsingInlineAsm ()
void	setParsingInlineAsm (bool Value)
MCTargetOptions	getTargetOptions () const
void	setSemaCallback (MCAsmParserSemaCallback *Callback)
virtual bool	ParseRegister (unsigned &RegNo, SMLoc &StartLoc, SMLoc &EndLoc)=0
virtual void	SetFrameRegister (unsigned RegNo)
	Sets frame register corresponding to the current MachineFunction.
virtual bool	ParseInstruction (ParseInstructionInfo &Info, StringRef Name, SMLoc NameLoc, OperandVector &Operands)=0
virtual bool	ParseDirective (AsmToken DirectiveID)=0
virtual bool	mnemonicIsValid (StringRef Mnemonic, unsigned VariantID)=0
virtual bool	MatchAndEmitInstruction (SMLoc IDLoc, unsigned &Opcode, OperandVector &Operands, MCStreamer &Out, uint64_t &ErrorInfo, bool MatchingInlineAsm)=0
virtual bool	OmitRegisterFromClobberLists (unsigned RegNo)
	Allows targets to let registers opt out of clobber lists.
virtual unsigned	validateTargetOperandClass (MCParsedAsmOperand &Op, unsigned Kind)
virtual unsigned	checkTargetMatchPredicate (MCInst &Inst)
virtual void	convertToMapAndConstraints (unsigned Kind, const OperandVector &Operands)=0
virtual const MCExpr *	applyModifierToExpr (const MCExpr *E, MCSymbolRefExpr::VariantKind, MCContext &Ctx)
virtual void	onLabelParsed (MCSymbol *Symbol)
Protected Member Functions
	MCTargetAsmParser ()
Protected Attributes
uint64_t	AvailableFeatures
	AvailableFeatures - The current set of available features.
bool	ParsingInlineAsm
	ParsingInlineAsm - Are we parsing ms-style inline assembly?
MCAsmParserSemaCallback *	SemaCallback
MCTargetOptions	MCOptions
	Set of options which affects instrumentation of inline assembly.

Detailed Description

MCTargetAsmParser - Generic interface to target specific assembly parsers.

Definition at line 79 of file MCTargetAsmParser.h.

Member Enumeration Documentation

enum llvm::MCTargetAsmParser::MatchResultTy

Enumerator:

Match_InvalidOperand
Match_MissingFeature
Match_MnemonicFail
Match_Success
FIRST_TARGET_MATCH_RESULT_TY

Definition at line 81 of file MCTargetAsmParser.h.

Constructor & Destructor Documentation

MCTargetAsmParser::MCTargetAsmParser ( ) [protected]

Definition at line 13 of file MCTargetAsmParser.cpp.

MCTargetAsmParser::~MCTargetAsmParser ( ) [virtual]

Definition at line 18 of file MCTargetAsmParser.cpp.

Member Function Documentation

virtual const MCExpr* llvm::MCTargetAsmParser::applyModifierToExpr	(	const MCExpr *	E,
		MCSymbolRefExpr::VariantKind	,
		MCContext &	Ctx
	)		`[inline, virtual]`

Definition at line 193 of file MCTargetAsmParser.h.

virtual unsigned llvm::MCTargetAsmParser::checkTargetMatchPredicate ( MCInst & Inst ) [inline, virtual]

checkTargetMatchPredicate - Validate the instruction match against any complex target predicates not expressible via match classes.

Definition at line 186 of file MCTargetAsmParser.h.

References Match_Success.

virtual void llvm::MCTargetAsmParser::convertToMapAndConstraints	(	unsigned	Kind,
		const OperandVector &	Operands
	)		`[pure virtual]`

uint64_t llvm::MCTargetAsmParser::getAvailableFeatures ( ) const [inline]

Definition at line 111 of file MCTargetAsmParser.h.

References AvailableFeatures.

MCTargetOptions llvm::MCTargetAsmParser::getTargetOptions ( ) const [inline]

Definition at line 117 of file MCTargetAsmParser.h.

References MCOptions.

bool llvm::MCTargetAsmParser::isParsingInlineAsm ( ) [inline]

Definition at line 114 of file MCTargetAsmParser.h.

References ParsingInlineAsm.

virtual bool llvm::MCTargetAsmParser::MatchAndEmitInstruction	(	SMLoc	IDLoc,
		unsigned &	Opcode,
		OperandVector &	Operands,
		MCStreamer &	Out,
		uint64_t &	ErrorInfo,
		bool	MatchingInlineAsm
	)		`[pure virtual]`

MatchAndEmitInstruction - Recognize a series of operands of a parsed instruction as an actual MCInst and emit it to the specified MCStreamer. This returns false on success and returns true on failure to match.

On failure, the target parser is responsible for emitting a diagnostic explaining the match failure.

virtual bool llvm::MCTargetAsmParser::mnemonicIsValid	(	StringRef	Mnemonic,
		unsigned	VariantID
	)		`[pure virtual]`

mnemonicIsValid - This returns true if this is a valid mnemonic and false otherwise.

virtual bool llvm::MCTargetAsmParser::OmitRegisterFromClobberLists ( unsigned RegNo ) [inline, virtual]

Allows targets to let registers opt out of clobber lists.

Definition at line 173 of file MCTargetAsmParser.h.

virtual void llvm::MCTargetAsmParser::onLabelParsed ( MCSymbol * Symbol ) [inline, virtual]

Definition at line 199 of file MCTargetAsmParser.h.

virtual bool llvm::MCTargetAsmParser::ParseDirective ( AsmToken DirectiveID ) [pure virtual]

ParseDirective - Parse a target specific assembler directive

The parser is positioned following the directive name. The target specific directive parser should parse the entire directive doing or recording any target specific work, or return true and do nothing if the directive is not target specific. If the directive is specific for the target, the entire line is parsed up to and including the end-of-statement token and false is returned.

Parameters:

DirectiveID - the identifier token of the directive.

virtual bool llvm::MCTargetAsmParser::ParseInstruction	(	ParseInstructionInfo &	Info,
		StringRef	Name,
		SMLoc	NameLoc,
		OperandVector &	Operands
	)		`[pure virtual]`

ParseInstruction - Parse one assembly instruction.

The parser is positioned following the instruction name. The target specific instruction parser should parse the entire instruction and construct the appropriate MCInst, or emit an error. On success, the entire line should be parsed up to and including the end-of-statement token. On failure, the parser is not required to read to the end of the line.

Parameters:

Name	- The instruction name.
NameLoc	- The source location of the name.
Operands	[out] - The list of parsed operands, this returns ownership of them to the caller.

Returns:: True on failure.

virtual bool llvm::MCTargetAsmParser::ParseRegister	(	unsigned &	RegNo,
		SMLoc &	StartLoc,
		SMLoc &	EndLoc
	)		`[pure virtual]`

void llvm::MCTargetAsmParser::setAvailableFeatures ( uint64_t Value ) [inline]

Definition at line 112 of file MCTargetAsmParser.h.

References AvailableFeatures.

virtual void llvm::MCTargetAsmParser::SetFrameRegister ( unsigned RegNo ) [inline, virtual]

Sets frame register corresponding to the current MachineFunction.

Definition at line 127 of file MCTargetAsmParser.h.

void llvm::MCTargetAsmParser::setParsingInlineAsm ( bool Value ) [inline]

Definition at line 115 of file MCTargetAsmParser.h.

References ParsingInlineAsm.

void llvm::MCTargetAsmParser::setSemaCallback ( MCAsmParserSemaCallback * Callback ) [inline]

Definition at line 119 of file MCTargetAsmParser.h.

References SemaCallback.

virtual unsigned llvm::MCTargetAsmParser::validateTargetOperandClass	(	MCParsedAsmOperand &	Op,
		unsigned	Kind
	)		`[inline, virtual]`

Allow a target to add special case operand matching for things that tblgen doesn't/can't handle effectively. For example, literal immediates on ARM. TableGen expects a token operand, but the parser will recognize them as immediates.

Definition at line 179 of file MCTargetAsmParser.h.

References Match_InvalidOperand.