Functions
std::unique_ptr< ModuleSummaryIndex >	llvm::ThinLTOCodeGenerator::linkCombinedIndex ()
	Produce the combined summary index from all the bitcode files: "thin-link".

void	llvm::ThinLTOCodeGenerator::promote (Module &Module, ModuleSummaryIndex &Index, const lto::InputFile &File)
	Perform promotion and renaming of exported internal functions, and additionally resolve weak and linkonce symbols.

void	llvm::ThinLTOCodeGenerator::emitImports (Module &Module, StringRef OutputName, ModuleSummaryIndex &Index, const lto::InputFile &File)
	Compute and emit the imported files for module at `ModulePath`.

void	llvm::ThinLTOCodeGenerator::crossModuleImport (Module &Module, ModuleSummaryIndex &Index, const lto::InputFile &File)
	Perform cross-module importing for the module identified by ModuleIdentifier.

void	llvm::ThinLTOCodeGenerator::gatherImportedSummariesForModule (Module &Module, ModuleSummaryIndex &Index, ModuleToSummariesForIndexTy &ModuleToSummariesForIndex, GVSummaryPtrSet &DecSummaries, const lto::InputFile &File)
	Compute the list of summaries and the subset of declaration summaries needed for importing into module.

void	llvm::ThinLTOCodeGenerator::internalize (Module &Module, ModuleSummaryIndex &Index, const lto::InputFile &File)
	Perform internalization.

void	llvm::ThinLTOCodeGenerator::optimize (Module &Module)
	Perform post-importing ThinLTO optimizations.

std::string	llvm::ThinLTOCodeGenerator::writeGeneratedObject (int count, StringRef CacheEntryPath, const MemoryBuffer &OutputBuffer)
	Write temporary object file to SavedObjectDirectoryPath, write symlink to Cache directory if needed.

Detailed Description

Function Documentation

◆ crossModuleImport()

void ThinLTOCodeGenerator::crossModuleImport	(	Module &	Module,
		ModuleSummaryIndex &	Index,
		const lto::InputFile &	File
	)

Perform cross-module importing for the module identified by ModuleIdentifier.

Definition at line 722 of file ThinLTOCodeGenerator.cpp.

References addUsedSymbolToPreservedGUID(), llvm::ComputeCrossModuleImport(), computeDeadSymbolsInIndex(), computeGUIDPreservedSymbols(), computePrevailingCopies(), crossImportIntoModule(), generateModuleMap(), llvm::Module::getModuleIdentifier(), and llvm::Module::getTargetTriple().

◆ emitImports()

void ThinLTOCodeGenerator::emitImports	(	Module &	Module,
		StringRef	OutputName,
		ModuleSummaryIndex &	Index,
		const lto::InputFile &	File
	)

Compute and emit the imported files for module at ModulePath.

Emit the list of files needed for importing into module.

Definition at line 800 of file ThinLTOCodeGenerator.cpp.

References addUsedSymbolToPreservedGUID(), llvm::ComputeCrossModuleImport(), computeDeadSymbolsInIndex(), computeGUIDPreservedSymbols(), computePrevailingCopies(), llvm::EmitImportsFiles(), llvm::gatherImportedSummariesForModule(), llvm::Module::getModuleIdentifier(), llvm::Module::getTargetTriple(), and llvm::report_fatal_error().

◆ gatherImportedSummariesForModule()

void ThinLTOCodeGenerator::gatherImportedSummariesForModule	(	Module &	Module,
		ModuleSummaryIndex &	Index,
		ModuleToSummariesForIndexTy &	ModuleToSummariesForIndex,
		GVSummaryPtrSet &	DecSummaries,
		const lto::InputFile &	File
	)

Compute the list of summaries and the subset of declaration summaries needed for importing into module.

Compute the list of summaries needed for importing into module.

Definition at line 761 of file ThinLTOCodeGenerator.cpp.

References addUsedSymbolToPreservedGUID(), llvm::ComputeCrossModuleImport(), computeDeadSymbolsInIndex(), computeGUIDPreservedSymbols(), computePrevailingCopies(), llvm::gatherImportedSummariesForModule(), llvm::Module::getModuleIdentifier(), and llvm::Module::getTargetTriple().

◆ internalize()

void ThinLTOCodeGenerator::internalize	(	Module &	TheModule,
		ModuleSummaryIndex &	Index,
		const lto::InputFile &	File
	)

Perform internalization.

Index is updated to reflect linkage changes.

Runs promote and internalization together. Index is updated to reflect linkage changes.

Definition at line 849 of file ThinLTOCodeGenerator.cpp.

References addUsedSymbolToPreservedGUID(), llvm::ComputeCrossModuleImport(), computeDeadSymbolsInIndex(), computeGUIDPreservedSymbols(), computePrevailingCopies(), llvm::detail::DenseSetImpl< ValueT, MapTy, ValueInfoT >::empty(), llvm::Module::getModuleIdentifier(), llvm::Module::getTargetTriple(), initTMBuilder(), promoteModule(), resolvePrevailingInIndex(), llvm::ThinLTOCodeGeneratorImpl::TargetMachineBuilder::TheTriple, llvm::thinLTOFinalizeInModule(), llvm::thinLTOInternalizeAndPromoteInIndex(), and llvm::thinLTOInternalizeModule().

◆ linkCombinedIndex()

std::unique_ptr< ModuleSummaryIndex > ThinLTOCodeGenerator::linkCombinedIndex ( )

Produce the combined summary index from all the bitcode files: "thin-link".

Definition at line 604 of file ThinLTOCodeGenerator.cpp.

References llvm::errs(), llvm::logAllUnhandledErrors(), and llvm::Mod.

Referenced by llvm::ThinLTOCodeGenerator::run().

◆ optimize()

void ThinLTOCodeGenerator::optimize ( Module & Module )

Perform post-importing ThinLTO optimizations.

Definition at line 912 of file ThinLTOCodeGenerator.cpp.

References llvm::ThinLTOCodeGeneratorImpl::TargetMachineBuilder::create(), llvm::Module::getTargetTriple(), initTMBuilder(), and optimizeModule().

◆ promote()

void ThinLTOCodeGenerator::promote	(	Module &	TheModule,
		ModuleSummaryIndex &	Index,
		const lto::InputFile &	File
	)

Perform promotion and renaming of exported internal functions, and additionally resolve weak and linkonce symbols.

Perform promotion and renaming of exported internal functions.

Index is updated to reflect linkage changes from weak resolution.

Definition at line 670 of file ThinLTOCodeGenerator.cpp.

References addUsedSymbolToPreservedGUID(), llvm::ComputeCrossModuleImport(), computeDeadSymbolsInIndex(), computeGUIDPreservedSymbols(), computePrevailingCopies(), llvm::Module::getModuleIdentifier(), llvm::Module::getTargetTriple(), promoteModule(), resolvePrevailingInIndex(), llvm::thinLTOFinalizeInModule(), and llvm::thinLTOInternalizeAndPromoteInIndex().

◆ writeGeneratedObject()

std::string ThinLTOCodeGenerator::writeGeneratedObject	(	int	count,
		StringRef	CacheEntryPath,
		const MemoryBuffer &	OutputBuffer
	)

Write temporary object file to SavedObjectDirectoryPath, write symlink to Cache directory if needed.

Write out the generated object file, either from CacheEntryPath or from OutputBuffer, preferring hard-link when possible.

Returns the path to the generated file in SavedObjectsDirectoryPath.

Definition at line 924 of file ThinLTOCodeGenerator.cpp.

References llvm::sys::path::append(), llvm::SmallString< InternalLen >::c_str(), llvm::sys::fs::copy_file(), llvm::count(), llvm::sys::fs::create_hard_link(), llvm::StringRef::empty(), llvm::errs(), llvm::sys::fs::exists(), llvm::Triple::getArchName(), llvm::MemoryBuffer::getBuffer(), llvm::sys::fs::OF_None, OS, llvm::sys::fs::remove(), llvm::report_fatal_error(), and llvm::ThinLTOCodeGeneratorImpl::TargetMachineBuilder::TheTriple.