llvm::BitstreamReader Class Reference

#include <BitstreamReader.h>

Collaboration diagram for llvm::BitstreamReader:

[legend]

List of all members.

Public Member Functions
	BitstreamReader ()
	BitstreamReader (const unsigned char *Start, const unsigned char *End)
void	init (const unsigned char *Start, const unsigned char *End)
	~BitstreamReader ()
bool	AtEndOfStream () const
uint64_t	GetCurrentBitNo () const
	GetCurrentBitNo - Return the bit # of the bit we are reading.
void	JumpToBit (uint64_t BitNo)
	JumpToBit - Reset the stream to the specified bit number.
unsigned	GetAbbrevIDWidth () const
	GetAbbrevIDWidth - Return the number of bits used to encode an abbrev #.
uint32_t	Read (unsigned NumBits)
uint64_t	Read64 (unsigned NumBits)
uint32_t	ReadVBR (unsigned NumBits)
uint64_t	ReadVBR64 (unsigned NumBits)
void	SkipToWord ()
unsigned	ReadCode ()
unsigned	ReadSubBlockID ()
bool	SkipBlock ()
bool	EnterSubBlock (unsigned BlockID, unsigned *NumWordsP=0)
bool	ReadBlockEnd ()
unsigned	ReadRecord (unsigned AbbrevID, SmallVectorImpl< uint64_t > &Vals)
void	ReadAbbrevRecord ()
bool	ReadBlockInfoBlock ()
Friends
class	Deserializer
Classes
struct	Block
struct	BlockInfo

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Detailed Description

Definition at line 25 of file BitstreamReader.h.

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Constructor & Destructor Documentation

llvm::BitstreamReader::BitstreamReader

(

)

[inline]

Definition at line 65 of file BitstreamReader.h.

llvm::BitstreamReader::BitstreamReader	(	const unsigned char *	Start,
		const unsigned char *	End
	)			[inline]

Definition at line 72 of file BitstreamReader.h.

References init().

llvm::BitstreamReader::~BitstreamReader

(

)

[inline]

Definition at line 85 of file BitstreamReader.h.

References BlockInfo.

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Member Function Documentation

void llvm::BitstreamReader::init	(	const unsigned char *	Start,
		const unsigned char *	End
	)			[inline]

Definition at line 76 of file BitstreamReader.h.

Referenced by BitstreamReader(), and llvm::BitcodeReader::ParseBitcode().

bool llvm::BitstreamReader::AtEndOfStream

(

)

const [inline]

Definition at line 111 of file BitstreamReader.h.

Referenced by EnterSubBlock(), llvm::BitcodeReader::ParseBitcode(), and SkipBlock().

uint64_t llvm::BitstreamReader::GetCurrentBitNo

(

)

const [inline]

GetCurrentBitNo - Return the bit # of the bit we are reading.

Definition at line 116 of file BitstreamReader.h.

Referenced by llvm::Deserializer::Deserializer().

void llvm::BitstreamReader::JumpToBit

(

uint64_t

BitNo

)

[inline]

JumpToBit - Reset the stream to the specified bit number.

Definition at line 121 of file BitstreamReader.h.

References Read().

Referenced by llvm::Deserializer::JumpTo(), llvm::BitcodeReader::materializeFunction(), and llvm::Deserializer::Rewind().

unsigned llvm::BitstreamReader::GetAbbrevIDWidth

(

)

const [inline]

GetAbbrevIDWidth - Return the number of bits used to encode an abbrev #.

Definition at line 139 of file BitstreamReader.h.

uint32_t llvm::BitstreamReader::Read

(

unsigned

NumBits

)

[inline]

Definition at line 141 of file BitstreamReader.h.

References R.

Referenced by EnterSubBlock(), JumpToBit(), llvm::BitcodeReader::ParseBitcode(), Read64(), ReadAbbrevRecord(), ReadCode(), ReadVBR(), ReadVBR64(), and SkipBlock().

uint64_t llvm::BitstreamReader::Read64

(

unsigned

NumBits

)

[inline]

Definition at line 179 of file BitstreamReader.h.

References Read(), and V.

uint32_t llvm::BitstreamReader::ReadVBR

(

unsigned

NumBits

)

[inline]

Definition at line 186 of file BitstreamReader.h.

References Read().

Referenced by EnterSubBlock(), ReadAbbrevRecord(), ReadRecord(), ReadSubBlockID(), and SkipBlock().

uint64_t llvm::BitstreamReader::ReadVBR64

(

unsigned

NumBits

)

[inline]

Definition at line 204 of file BitstreamReader.h.

References Read().

Referenced by ReadAbbrevRecord(), and ReadRecord().

void llvm::BitstreamReader::SkipToWord

(

)

[inline]

Definition at line 222 of file BitstreamReader.h.

Referenced by EnterSubBlock(), ReadBlockEnd(), and SkipBlock().

unsigned llvm::BitstreamReader::ReadCode

(

)

[inline]

Definition at line 228 of file BitstreamReader.h.

References Read().

Referenced by llvm::BitcodeReader::ParseBitcode(), and ReadBlockInfoBlock().

unsigned llvm::BitstreamReader::ReadSubBlockID

(

)

[inline]

ReadSubBlockID - Having read the ENTER_SUBBLOCK code, read the BlockID for the block.

Definition at line 258 of file BitstreamReader.h.

References llvm::bitc::BlockIDWidth, and ReadVBR().

Referenced by llvm::BitcodeReader::ParseBitcode(), and ReadBlockInfoBlock().

bool llvm::BitstreamReader::SkipBlock

(

)

[inline]

SkipBlock - Having read the ENTER_SUBBLOCK abbrevid and a BlockID, skip over the body of this block. If the block record is malformed, return true.

Definition at line 265 of file BitstreamReader.h.

References AtEndOfStream(), llvm::bitc::BlockSizeWidth, llvm::bitc::CodeLenWidth, Read(), ReadVBR(), and SkipToWord().

Referenced by llvm::BitcodeReader::ParseBitcode(), ReadBlockInfoBlock(), and llvm::Deserializer::SkipBlock().

bool llvm::BitstreamReader::EnterSubBlock	(	unsigned	BlockID,
		unsigned *	NumWordsP = 0
	)			[inline]

EnterSubBlock - Having read the ENTER_SUBBLOCK abbrevid, enter the block, and return true if the block is valid.

Definition at line 283 of file BitstreamReader.h.

References AtEndOfStream(), BlockInfo, llvm::bitc::BlockSizeWidth, llvm::bitc::CodeLenWidth, Read(), ReadVBR(), and SkipToWord().

Referenced by llvm::Deserializer::JumpTo(), and ReadBlockInfoBlock().

bool llvm::BitstreamReader::ReadBlockEnd

(

)

[inline]

Definition at line 310 of file BitstreamReader.h.

References SkipToWord().

Referenced by ReadBlockInfoBlock().

unsigned llvm::BitstreamReader::ReadRecord	(	unsigned	AbbrevID,
		SmallVectorImpl< uint64_t > &	Vals
	)			[inline]

Definition at line 361 of file BitstreamReader.h.

References llvm::BitCodeAbbrevOp::Array, llvm::SmallVectorImpl< T >::begin(), llvm::SectionFlags::Code, llvm::SmallVectorImpl< T >::erase(), llvm::bitc::FIRST_APPLICATION_ABBREV, llvm::BitCodeAbbrevOp::getEncoding(), llvm::BitCodeAbbrevOp::isLiteral(), llvm::SmallVectorImpl< T >::push_back(), ReadVBR(), ReadVBR64(), and llvm::bitc::UNABBREV_RECORD.

Referenced by ReadBlockInfoBlock().

void llvm::BitstreamReader::ReadAbbrevRecord

(

)

[inline]

Definition at line 401 of file BitstreamReader.h.

References llvm::BitCodeAbbrev::Add(), E, llvm::BitCodeAbbrevOp::hasEncodingData(), Read(), ReadVBR(), and ReadVBR64().

Referenced by ReadBlockInfoBlock().

bool llvm::BitstreamReader::ReadBlockInfoBlock

(

)

[inline]

Definition at line 437 of file BitstreamReader.h.

References BlockInfo, llvm::bitc::BLOCKINFO_BLOCK_ID, llvm::bitc::BLOCKINFO_CODE_SETBID, llvm::SmallVectorImpl< T >::clear(), llvm::SectionFlags::Code, llvm::bitc::DEFINE_ABBREV, llvm::bitc::END_BLOCK, llvm::bitc::ENTER_SUBBLOCK, EnterSubBlock(), ReadAbbrevRecord(), ReadBlockEnd(), ReadCode(), ReadRecord(), ReadSubBlockID(), llvm::SmallVectorImpl< T >::size(), and SkipBlock().

Referenced by llvm::BitcodeReader::ParseBitcode().

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Friends And Related Function Documentation

friend class Deserializer [friend]

Definition at line 28 of file BitstreamReader.h.

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The documentation for this class was generated from the following file:

• BitstreamReader.h