llvm::BitcodeModule Class Reference

Represents a module in a bitcode file. More...

#include "llvm/Bitcode/BitcodeReader.h"

Public Member Functions
StringRef	getBuffer () const
StringRef	getStrtab () const
StringRef	getModuleIdentifier () const
Expected< std::unique_ptr< Module > >	getLazyModule (LLVMContext &Context, bool ShouldLazyLoadMetadata, bool IsImporting)
	Read the bitcode module and prepare for lazy deserialization of function bodies. More...
Expected< std::unique_ptr< Module > >	parseModule (LLVMContext &Context)
	Read the entire bitcode module and return it. More...
Expected< BitcodeLTOInfo >	getLTOInfo ()
	Returns information about the module to be used for LTO: whether to compile with ThinLTO, and whether it has a summary. More...
Expected< std::unique_ptr< ModuleSummaryIndex > >	getSummary ()
	Parse the specified bitcode buffer, returning the module summary index. More...
Error	readSummary (ModuleSummaryIndex &CombinedIndex, StringRef ModulePath, uint64_t ModuleId)
	Parse the specified bitcode buffer and merge its module summary index into CombinedIndex. More...

Friends
Expected< BitcodeFileContents >	getBitcodeFileContents (MemoryBufferRef Buffer)
	Returns the contents of a bitcode file. More...

Detailed Description

Represents a module in a bitcode file.

Definition at line 58 of file BitcodeReader.h.

Member Function Documentation

getBuffer()

StringRef llvm::BitcodeModule::getBuffer ( ) const

inline

Definition at line 87 of file BitcodeReader.h.

getLazyModule()

Expected< std::unique_ptr< Module > > BitcodeModule::getLazyModule	(	LLVMContext &	Context,
		bool	ShouldLazyLoadMetadata,
		bool	IsImporting
	)

Read the bitcode module and prepare for lazy deserialization of function bodies.

If ShouldLazyLoadMetadata is true, lazily load metadata as well. If IsImporting is true, this module is being parsed for ThinLTO importing into another module.

Definition at line 5898 of file BitcodeReader.cpp.

Referenced by handleNonPrevailingComdat().

getLTOInfo()

Expected< BitcodeLTOInfo > BitcodeModule::getLTOInfo

(

)

Returns information about the module to be used for LTO: whether to compile with ThinLTO, and whether it has a summary.

Definition at line 5973 of file BitcodeReader.cpp.

References llvm::BitstreamCursor::advance(), llvm::BitstreamEntry::EndBlock, llvm::BitstreamCursor::EnterSubBlock(), error(), llvm::BitstreamEntry::Error, llvm::bitc::FULL_LTO_GLOBALVAL_SUMMARY_BLOCK_ID, getEnableSplitLTOUnitFlag(), llvm::bitc::GLOBALVAL_SUMMARY_BLOCK_ID, llvm::BitstreamEntry::ID, llvm::SimpleBitstreamCursor::JumpToBit(), llvm::BitstreamEntry::Kind, llvm::bitc::MODULE_BLOCK_ID, llvm::BitstreamEntry::Record, llvm::BitstreamCursor::SkipBlock(), llvm::BitstreamCursor::skipRecord(), llvm::BitstreamEntry::SubBlock, and llvm::Expected< T >::takeError().

getModuleIdentifier()

StringRef llvm::BitcodeModule::getModuleIdentifier ( ) const

inline

Definition at line 93 of file BitcodeReader.h.

References llvm::parseModule().

Referenced by llvm::lto::getThinLTOOutputFile().

getStrtab()

StringRef llvm::BitcodeModule::getStrtab ( ) const

inline

Definition at line 91 of file BitcodeReader.h.

getSummary()

Expected< std::unique_ptr< ModuleSummaryIndex > > BitcodeModule::getSummary

(

)

Parse the specified bitcode buffer, returning the module summary index.

Definition at line 5918 of file BitcodeReader.cpp.

References llvm::SimpleBitstreamCursor::JumpToBit().

parseModule()

Expected< std::unique_ptr< Module > > BitcodeModule::parseModule

(

LLVMContext &

Context

)

Read the entire bitcode module and return it.

Definition at line 6053 of file BitcodeReader.cpp.

readSummary()

Error BitcodeModule::readSummary	(	ModuleSummaryIndex &	CombinedIndex,
		StringRef	ModulePath,
		uint64_t	ModuleId
	)

Parse the specified bitcode buffer and merge its module summary index into CombinedIndex.

Definition at line 5907 of file BitcodeReader.cpp.

References llvm::SimpleBitstreamCursor::JumpToBit().

Friends And Related Function Documentation

getBitcodeFileContents

Expected<BitcodeFileContents> getBitcodeFileContents ( MemoryBufferRef  Buffer )

friend

Returns the contents of a bitcode file.

This includes the raw contents of the symbol table embedded in the bitcode file. Clients which require a symbol table should prefer to use irsymtab::read instead of this function because it creates a reader for the irsymtab and handles upgrading bitcode files without a symbol table or with an old symbol table.

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

• include/llvm/Bitcode/BitcodeReader.h
• lib/Bitcode/Reader/BitcodeReader.cpp