llvm::BitcodeReader Class Reference

#include <BitcodeReader.h>

Inheritance diagram for llvm::BitcodeReader:

Collaboration diagram for llvm::BitcodeReader:

List of all members.

Public Member Functions
std::error_code	Error (BitcodeError E)
	BitcodeReader (MemoryBuffer *buffer, LLVMContext &C)
	BitcodeReader (DataStreamer *streamer, LLVMContext &C)
	~BitcodeReader ()
std::error_code	materializeForwardReferencedFunctions ()
void	FreeState ()
void	releaseBuffer ()
bool	isMaterializable (const GlobalValue *GV) const override
bool	isDematerializable (const GlobalValue *GV) const override
std::error_code	Materialize (GlobalValue *GV) override
std::error_code	MaterializeModule (Module *M) override
void	Dematerialize (GlobalValue *GV) override
std::error_code	ParseBitcodeInto (Module *M)
	Main interface to parsing a bitcode buffer.
ErrorOr< std::string >	parseTriple ()
	Cheap mechanism to just extract module triple.
Static Public Member Functions
static uint64_t	decodeSignRotatedValue (uint64_t V)

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Detailed Description

Definition at line 127 of file BitcodeReader.h.

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Constructor & Destructor Documentation

llvm::BitcodeReader::BitcodeReader	(	MemoryBuffer *	buffer,
		LLVMContext &	C
	)		[inline, explicit]

Definition at line 208 of file BitcodeReader.h.

llvm::BitcodeReader::BitcodeReader	(	DataStreamer *	streamer,
		LLVMContext &	C
	)		[inline, explicit]

Definition at line 213 of file BitcodeReader.h.

llvm::BitcodeReader::~BitcodeReader

(

)

[inline]

Definition at line 218 of file BitcodeReader.h.

References FreeState().

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Member Function Documentation

uint64_t BitcodeReader::decodeSignRotatedValue

(

uint64_t

V

)

[static]

decodeSignRotatedValue - Decode a signed value stored with the sign bit in the LSB for dense VBR encoding.

Definition at line 1137 of file BitcodeReader.cpp.

Referenced by ReadWideAPInt().

void BitcodeReader::Dematerialize

(

GlobalValue *

)

[override, virtual]

If the given GlobalValue is read in, and if the GVMaterializer supports it, release the memory for the GV, and set it up to be materialized lazily. If the Materializer doesn't support this capability, this method is a noop.

Reimplemented from llvm::GVMaterializer.

Definition at line 3339 of file BitcodeReader.cpp.

References llvm::DenseMapBase< DerivedT, KeyT, ValueT, KeyInfoT >::count(), llvm::Function::deleteBody(), llvm::dyn_cast(), and isDematerializable().

std::error_code llvm::BitcodeReader::Error

(

BitcodeError

E

)

[inline]

Definition at line 206 of file BitcodeReader.h.

References llvm::make_error_code().

Referenced by materializeForwardReferencedFunctions(), MaterializeModule(), ParseBitcodeInto(), and parseTriple().

void BitcodeReader::FreeState

(

)

Definition at line 67 of file BitcodeReader.cpp.

References llvm::BitcodeReaderValueList::clear(), llvm::DenseMapBase< DerivedT, KeyT, ValueT, KeyInfoT >::clear(), llvm::BitcodeReaderMDValueList::clear(), llvm::DenseMapBase< DerivedT, KeyT, ValueT, KeyInfoT >::empty(), and std::swap().

Referenced by ~BitcodeReader().

bool BitcodeReader::isDematerializable

(

const GlobalValue *

GV

)

const [override, virtual]

True if GV has been materialized and can be dematerialized back to whatever backing store this GVMaterializer uses.

Implements llvm::GVMaterializer.

Definition at line 3326 of file BitcodeReader.cpp.

References llvm::DenseMapBase< DerivedT, KeyT, ValueT, KeyInfoT >::count(), llvm::SmallPtrSetImpl< PtrType >::count(), llvm::dyn_cast(), and llvm::GlobalValue::isDeclaration().

Referenced by Dematerialize().

bool BitcodeReader::isMaterializable

(

const GlobalValue *

GV

)

const [override, virtual]

True if GV can be materialized from whatever backing store this GVMaterializer uses and has not been materialized yet.

Implements llvm::GVMaterializer.

Definition at line 3281 of file BitcodeReader.cpp.

References llvm::DenseMapBase< DerivedT, KeyT, ValueT, KeyInfoT >::count(), and llvm::GlobalValue::isDeclaration().

std::error_code BitcodeReader::Materialize

(

GlobalValue *

GV

)

[override, virtual]

Make sure the given GlobalValue is fully read.

Implements llvm::GVMaterializer.

Definition at line 3289 of file BitcodeReader.cpp.

References llvm::dyn_cast(), llvm::DenseMapBase< DerivedT, KeyT, ValueT, KeyInfoT >::end(), llvm::DenseMapBase< DerivedT, KeyT, ValueT, KeyInfoT >::find(), I, llvm::GlobalValue::isMaterializable(), llvm::BitstreamCursor::JumpToBit(), materializeForwardReferencedFunctions(), and llvm::UpgradeIntrinsicCall().

Referenced by materializeForwardReferencedFunctions(), and MaterializeModule().

std::error_code BitcodeReader::materializeForwardReferencedFunctions

(

)

Definition at line 34 of file BitcodeReader.cpp.

References llvm::DenseMapBase< DerivedT, KeyT, ValueT, KeyInfoT >::count(), llvm::DenseMapBase< DerivedT, KeyT, ValueT, KeyInfoT >::empty(), Error(), F(), llvm::GlobalValue::isMaterializable(), Materialize(), and llvm::NeverResolvedFunctionFromBlockAddress.

Referenced by Materialize().

std::error_code BitcodeReader::MaterializeModule

(

Module *

M

)

[override, virtual]

Make sure the entire Module has been completely read.

Implements llvm::GVMaterializer.

Definition at line 3351 of file BitcodeReader.cpp.

References llvm::Module::begin(), llvm::DenseMapBase< DerivedT, KeyT, ValueT, KeyInfoT >::empty(), llvm::Module::end(), Error(), F(), I, llvm::GlobalValue::isMaterializable(), Materialize(), llvm::NeverResolvedFunctionFromBlockAddress, llvm::SmallVectorTemplateCommon< T, typename >::size(), std::swap(), llvm::UpgradeDebugInfo(), llvm::UpgradeInstWithTBAATag(), and llvm::UpgradeIntrinsicCall().

std::error_code BitcodeReader::ParseBitcodeInto

(

Module *

M

)

Main interface to parsing a bitcode buffer.

Returns:

true if an error occurred.

Definition at line 2120 of file BitcodeReader.cpp.

References llvm::BitstreamCursor::advance(), llvm::BitstreamCursor::AF_DontAutoprocessAbbrevs, llvm::BitstreamCursor::AtEndOfStream(), llvm::bitc::BLOCKINFO_BLOCK_ID, llvm::BitstreamEntry::EndBlock, llvm::BitstreamEntry::Error, Error(), llvm::BitstreamCursor::getAbbrevIDWidth(), llvm::BitstreamEntry::ID, llvm::InvalidBitcodeSignature, llvm::InvalidMultipleBlocks, llvm::InvalidRecord, llvm::BitstreamEntry::Kind, llvm::MalformedBlock, llvm::bitc::MODULE_BLOCK_ID, llvm::BitstreamCursor::Read(), llvm::BitstreamCursor::ReadBlockInfoBlock(), llvm::BitstreamEntry::Record, llvm::BitstreamCursor::SkipBlock(), and llvm::BitstreamEntry::SubBlock.

Referenced by llvm::getStreamedBitcodeModule().

ErrorOr< std::string > BitcodeReader::parseTriple

(

)

Cheap mechanism to just extract module triple.

Returns:

true if an error occurred.

Definition at line 2226 of file BitcodeReader.cpp.

References llvm::BitstreamCursor::advance(), llvm::BitstreamEntry::EndBlock, llvm::BitstreamEntry::Error, Error(), llvm::BitstreamEntry::ID, llvm::InvalidBitcodeSignature, llvm::BitstreamEntry::Kind, llvm::MalformedBlock, llvm::bitc::MODULE_BLOCK_ID, llvm::BitstreamCursor::Read(), llvm::BitstreamEntry::Record, llvm::BitstreamCursor::SkipBlock(), llvm::BitstreamCursor::skipRecord(), and llvm::BitstreamEntry::SubBlock.

void BitcodeReader::releaseBuffer

(

)

Definition at line 3279 of file BitcodeReader.cpp.

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

• BitcodeReader.h
• BitcodeReader.cpp