ThinLTOCodeGenerator.cpp File Reference

#include "llvm/LTO/legacy/ThinLTOCodeGenerator.h"
#include "llvm/ADT/Statistic.h"
#include "llvm/ADT/StringExtras.h"
#include "llvm/Analysis/ModuleSummaryAnalysis.h"
#include "llvm/Analysis/ProfileSummaryInfo.h"
#include "llvm/Analysis/TargetLibraryInfo.h"
#include "llvm/Analysis/TargetTransformInfo.h"
#include "llvm/Bitcode/BitcodeReader.h"
#include "llvm/Bitcode/BitcodeWriter.h"
#include "llvm/Bitcode/BitcodeWriterPass.h"
#include "llvm/Config/llvm-config.h"
#include "llvm/IR/DebugInfo.h"
#include "llvm/IR/DiagnosticPrinter.h"
#include "llvm/IR/LLVMContext.h"
#include "llvm/IR/LegacyPassManager.h"
#include "llvm/IR/Mangler.h"
#include "llvm/IR/PassTimingInfo.h"
#include "llvm/IR/Verifier.h"
#include "llvm/IRReader/IRReader.h"
#include "llvm/LTO/LTO.h"
#include "llvm/LTO/SummaryBasedOptimizations.h"
#include "llvm/MC/SubtargetFeature.h"
#include "llvm/Object/IRObjectFile.h"
#include "llvm/Support/CachePruning.h"
#include "llvm/Support/Debug.h"
#include "llvm/Support/Error.h"
#include "llvm/Support/Path.h"
#include "llvm/Support/SHA1.h"
#include "llvm/Support/SmallVectorMemoryBuffer.h"
#include "llvm/Support/TargetRegistry.h"
#include "llvm/Support/ThreadPool.h"
#include "llvm/Support/Threading.h"
#include "llvm/Support/ToolOutputFile.h"
#include "llvm/Support/VCSRevision.h"
#include "llvm/Target/TargetMachine.h"
#include "llvm/Transforms/IPO.h"
#include "llvm/Transforms/IPO/FunctionImport.h"
#include "llvm/Transforms/IPO/Internalize.h"
#include "llvm/Transforms/IPO/PassManagerBuilder.h"
#include "llvm/Transforms/ObjCARC.h"
#include "llvm/Transforms/Utils/FunctionImportUtils.h"
#include <numeric>
#include <unistd.h>

Include dependency graph for ThinLTOCodeGenerator.cpp:

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Namespaces
	llvm
	This class represents lattice values for constants.

Macros
#define	DEBUG_TYPE   "thinlto"

Functions
static void	internalizeAndPromoteInIndex (const StringMap< FunctionImporter::ExportSetTy > &ExportLists, const DenseSet< GlobalValue::GUID > &GUIDPreservedSymbols, ModuleSummaryIndex &Index)
static void	computeDeadSymbolsInIndex (ModuleSummaryIndex &Index, const DenseSet< GlobalValue::GUID > &GUIDPreservedSymbols)
static std::string	writeGeneratedObject (int count, StringRef CacheEntryPath, StringRef SavedObjectsDirectoryPath, const MemoryBuffer &OutputBuffer)
	Write out the generated object file, either from CacheEntryPath or from OutputBuffer, preferring hard-link when possible. More...

Macro Definition Documentation

DEBUG_TYPE

#define DEBUG_TYPE   "thinlto"

Definition at line 68 of file ThinLTOCodeGenerator.cpp.

Function Documentation

computeDeadSymbolsInIndex()

static void computeDeadSymbolsInIndex ( ModuleSummaryIndex &  Index, const DenseSet< GlobalValue::GUID > &  GUIDPreservedSymbols  )

static

Definition at line 579 of file ThinLTOCodeGenerator.cpp.

References llvm::computeDeadSymbolsWithConstProp(), G, and llvm::Unknown.

Referenced by llvm::ThinLTOCodeGenerator::crossModuleImport(), llvm::ThinLTOCodeGenerator::emitImports(), llvm::ThinLTOCodeGenerator::gatherImportedSummariesForModule(), llvm::ThinLTOCodeGenerator::internalize(), llvm::ThinLTOCodeGenerator::promote(), and llvm::ThinLTOCodeGenerator::run().

internalizeAndPromoteInIndex()

static void internalizeAndPromoteInIndex ( const StringMap< FunctionImporter::ExportSetTy > &  ExportLists, const DenseSet< GlobalValue::GUID > &  GUIDPreservedSymbols, ModuleSummaryIndex &  Index  )

static

Definition at line 565 of file ThinLTOCodeGenerator.cpp.

References llvm::detail::DenseSetImpl< ValueT, DenseMap< ValueT, detail::DenseSetEmpty, ValueInfoT, detail::DenseSetPair< ValueT > >, ValueInfoT >::count(), llvm::StringMap< ValueTy, AllocatorTy >::end(), llvm::StringMap< ValueTy, AllocatorTy >::find(), and llvm::thinLTOInternalizeAndPromoteInIndex().

Referenced by llvm::ThinLTOCodeGenerator::internalize(), llvm::ThinLTOCodeGenerator::promote(), and llvm::ThinLTOCodeGenerator::run().

writeGeneratedObject()

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

static

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 780 of file ThinLTOCodeGenerator.cpp.

References llvm::sys::path::append(), llvm::SmallString< InternalLen >::c_str(), llvm::StringRef::empty(), llvm::sys::fs::exists(), and llvm::sys::fs::remove().

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