TargetLoweringObjectFileImpl.cpp File Reference

#include "llvm/CodeGen/TargetLoweringObjectFileImpl.h"
#include "llvm/ADT/SmallString.h"
#include "llvm/ADT/SmallVector.h"
#include "llvm/ADT/StringExtras.h"
#include "llvm/ADT/StringRef.h"
#include "llvm/ADT/Triple.h"
#include "llvm/BinaryFormat/COFF.h"
#include "llvm/BinaryFormat/Dwarf.h"
#include "llvm/BinaryFormat/ELF.h"
#include "llvm/BinaryFormat/MachO.h"
#include "llvm/CodeGen/MachineBasicBlock.h"
#include "llvm/CodeGen/MachineFunction.h"
#include "llvm/CodeGen/MachineModuleInfo.h"
#include "llvm/CodeGen/MachineModuleInfoImpls.h"
#include "llvm/IR/Comdat.h"
#include "llvm/IR/Constants.h"
#include "llvm/IR/DataLayout.h"
#include "llvm/IR/DerivedTypes.h"
#include "llvm/IR/DiagnosticInfo.h"
#include "llvm/IR/DiagnosticPrinter.h"
#include "llvm/IR/Function.h"
#include "llvm/IR/GlobalAlias.h"
#include "llvm/IR/GlobalObject.h"
#include "llvm/IR/GlobalValue.h"
#include "llvm/IR/GlobalVariable.h"
#include "llvm/IR/Mangler.h"
#include "llvm/IR/Metadata.h"
#include "llvm/IR/Module.h"
#include "llvm/IR/Type.h"
#include "llvm/MC/MCAsmInfo.h"
#include "llvm/MC/MCContext.h"
#include "llvm/MC/MCExpr.h"
#include "llvm/MC/MCSectionCOFF.h"
#include "llvm/MC/MCSectionELF.h"
#include "llvm/MC/MCSectionMachO.h"
#include "llvm/MC/MCSectionWasm.h"
#include "llvm/MC/MCSectionXCOFF.h"
#include "llvm/MC/MCStreamer.h"
#include "llvm/MC/MCSymbol.h"
#include "llvm/MC/MCSymbolELF.h"
#include "llvm/MC/MCValue.h"
#include "llvm/MC/SectionKind.h"
#include "llvm/ProfileData/InstrProf.h"
#include "llvm/Support/Casting.h"
#include "llvm/Support/CodeGen.h"
#include "llvm/Support/ErrorHandling.h"
#include "llvm/Support/Format.h"
#include "llvm/Support/raw_ostream.h"
#include "llvm/Target/TargetMachine.h"
#include <cassert>
#include <string>

Go to the source code of this file.

Functions
static void	GetObjCImageInfo (Module &M, unsigned &Version, unsigned &Flags, StringRef &Section)
static SectionKind	getELFKindForNamedSection (StringRef Name, SectionKind K)
static unsigned	getELFSectionType (StringRef Name, SectionKind K)
static unsigned	getELFSectionFlags (SectionKind K)
static const Comdat *	getELFComdat (const GlobalValue *GV)
static const MCSymbolELF *	getLinkedToSymbol (const GlobalObject *GO, const TargetMachine &TM)
static unsigned	getEntrySizeForKind (SectionKind Kind)
static StringRef	getSectionPrefixForGlobal (SectionKind Kind)
	Return the section prefix name used by options FunctionsSections and DataSections. More...
static SmallString< 128 >	getELFSectionNameForGlobal (const GlobalObject *GO, SectionKind Kind, Mangler &Mang, const TargetMachine &TM, unsigned EntrySize, bool UniqueSectionName)
static MCSectionELF *	selectELFSectionForGlobal (MCContext &Ctx, const GlobalObject *GO, SectionKind Kind, Mangler &Mang, const TargetMachine &TM, bool EmitUniqueSection, unsigned Flags, unsigned *NextUniqueID, const MCSymbolELF *AssociatedSymbol)
static MCSectionELF *	getStaticStructorSection (MCContext &Ctx, bool UseInitArray, bool IsCtor, unsigned Priority, const MCSymbol *KeySym)
static void	checkMachOComdat (const GlobalValue *GV)
static bool	canUsePrivateLabel (const MCAsmInfo &AsmInfo, const MCSection &Section)
static unsigned	getCOFFSectionFlags (SectionKind K, const TargetMachine &TM)
static const GlobalValue *	getComdatGVForCOFF (const GlobalValue *GV)
static int	getSelectionForCOFF (const GlobalValue *GV)
static StringRef	getCOFFSectionNameForUniqueGlobal (SectionKind Kind)
static MCSectionCOFF *	getCOFFStaticStructorSection (MCContext &Ctx, const Triple &T, bool IsCtor, unsigned Priority, const MCSymbol *KeySym, MCSectionCOFF *Default)
static std::string	APIntToHexString (const APInt &AI)
static std::string	scalarConstantToHexString (const Constant *C)
static const Comdat *	getWasmComdat (const GlobalValue *GV)
static MCSectionWasm *	selectWasmSectionForGlobal (MCContext &Ctx, const GlobalObject *GO, SectionKind Kind, Mangler &Mang, const TargetMachine &TM, bool EmitUniqueSection, unsigned *NextUniqueID)

Function Documentation

APIntToHexString()

static std::string APIntToHexString ( const APInt &  AI )

static

Definition at line 1746 of file TargetLoweringObjectFileImpl.cpp.

References assert(), llvm::APInt::getBitWidth(), Size, llvm::APInt::toString(), and llvm::transform().

Referenced by scalarConstantToHexString().

canUsePrivateLabel()

static bool canUsePrivateLabel ( const MCAsmInfo &  AsmInfo, const MCSection &  Section  )

static

Definition at line 1337 of file TargetLoweringObjectFileImpl.cpp.

References llvm::MCSectionMachO::hasAttribute(), llvm::MCAsmInfo::isSectionAtomizableBySymbols(), llvm::MachO::S_ATTR_NO_DEAD_STRIP, and llvm::ARMBuildAttrs::Section.

Referenced by llvm::TargetLoweringObjectFileMachO::getNameWithPrefix().

checkMachOComdat()

static void checkMachOComdat ( const GlobalValue *  GV )

static

Definition at line 1075 of file TargetLoweringObjectFileImpl.cpp.

References C, llvm::GlobalValue::getComdat(), llvm::Comdat::getName(), and llvm::report_fatal_error().

Referenced by llvm::TargetLoweringObjectFileMachO::getExplicitSectionGlobal(), and llvm::TargetLoweringObjectFileMachO::SelectSectionForGlobal().

getCOFFSectionFlags()

static unsigned getCOFFSectionFlags ( SectionKind  K, const TargetMachine &  TM  )

static

Definition at line 1368 of file TargetLoweringObjectFileImpl.cpp.

References llvm::Triple::getArch(), llvm::TargetMachine::getTargetTriple(), llvm::COFF::IMAGE_SCN_CNT_CODE, llvm::COFF::IMAGE_SCN_CNT_INITIALIZED_DATA, llvm::COFF::IMAGE_SCN_CNT_UNINITIALIZED_DATA, llvm::COFF::IMAGE_SCN_MEM_16BIT, llvm::COFF::IMAGE_SCN_MEM_DISCARDABLE, llvm::COFF::IMAGE_SCN_MEM_EXECUTE, llvm::COFF::IMAGE_SCN_MEM_READ, llvm::COFF::IMAGE_SCN_MEM_WRITE, llvm::SectionKind::isBSS(), llvm::SectionKind::isMetadata(), llvm::SectionKind::isReadOnly(), llvm::SectionKind::isReadOnlyWithRel(), llvm::SectionKind::isText(), llvm::SectionKind::isThreadLocal(), isThumb(), llvm::SectionKind::isWriteable(), and llvm::Triple::thumb.

Referenced by llvm::TargetLoweringObjectFileCOFF::getExplicitSectionGlobal(), llvm::TargetLoweringObjectFileCOFF::getSectionForJumpTable(), and llvm::TargetLoweringObjectFileCOFF::SelectSectionForGlobal().

getCOFFSectionNameForUniqueGlobal()

static StringRef getCOFFSectionNameForUniqueGlobal ( SectionKind  Kind )

static

Definition at line 1473 of file TargetLoweringObjectFileImpl.cpp.

References llvm::SectionKind::isBSS(), llvm::SectionKind::isReadOnly(), llvm::SectionKind::isReadOnlyWithRel(), llvm::SectionKind::isText(), and llvm::SectionKind::isThreadLocal().

Referenced by llvm::TargetLoweringObjectFileCOFF::getSectionForJumpTable(), and llvm::TargetLoweringObjectFileCOFF::SelectSectionForGlobal().

getCOFFStaticStructorSection()

static MCSectionCOFF* getCOFFStaticStructorSection ( MCContext &  Ctx, const Triple &  T, bool  IsCtor, unsigned  Priority, const MCSymbol *  KeySym, MCSectionCOFF *  Default  )

static

Definition at line 1653 of file TargetLoweringObjectFileImpl.cpp.

References llvm::format(), llvm::MCContext::getAssociativeCOFFSection(), llvm::MCContext::getCOFFSection(), llvm::SectionKind::getData(), llvm::SectionKind::getReadOnly(), llvm::COFF::IMAGE_SCN_CNT_INITIALIZED_DATA, llvm::COFF::IMAGE_SCN_MEM_READ, llvm::COFF::IMAGE_SCN_MEM_WRITE, llvm::Triple::isWindowsItaniumEnvironment(), llvm::Triple::isWindowsMSVCEnvironment(), and Name.

Referenced by llvm::TargetLoweringObjectFileCOFF::getStaticCtorSection(), and llvm::TargetLoweringObjectFileCOFF::getStaticDtorSection().

getComdatGVForCOFF()

static const GlobalValue* getComdatGVForCOFF ( const GlobalValue *  GV )

static

Definition at line 1404 of file TargetLoweringObjectFileImpl.cpp.

References assert(), C, llvm::GlobalValue::getComdat(), llvm::Comdat::getName(), llvm::Module::getNamedValue(), llvm::GlobalValue::getParent(), and llvm::report_fatal_error().

Referenced by llvm::TargetLoweringObjectFileCOFF::getExplicitSectionGlobal(), getSelectionForCOFF(), and llvm::TargetLoweringObjectFileCOFF::SelectSectionForGlobal().

getELFComdat()

static const Comdat* getELFComdat ( const GlobalValue *  GV )

static

Definition at line 519 of file TargetLoweringObjectFileImpl.cpp.

References llvm::Comdat::Any, C, llvm::GlobalValue::getComdat(), llvm::Comdat::getName(), llvm::Comdat::getSelectionKind(), and llvm::report_fatal_error().

Referenced by llvm::TargetLoweringObjectFileELF::getExplicitSectionGlobal(), and selectELFSectionForGlobal().

getELFKindForNamedSection()

static SectionKind getELFKindForNamedSection ( StringRef  Name, SectionKind  K  )

static

Definition at line 428 of file TargetLoweringObjectFileImpl.cpp.

References llvm::Triple::ELF, llvm::StringRef::empty(), llvm::SectionKind::getBSS(), llvm::getInstrProfSectionName(), llvm::SectionKind::getMetadata(), llvm::SectionKind::getThreadBSS(), llvm::SectionKind::getThreadData(), and llvm::StringRef::startswith().

Referenced by llvm::TargetLoweringObjectFileELF::getExplicitSectionGlobal().

getELFSectionFlags()

static unsigned getELFSectionFlags ( SectionKind  K )

static

Definition at line 492 of file TargetLoweringObjectFileImpl.cpp.

References llvm::SectionKind::isExecuteOnly(), llvm::SectionKind::isMergeableConst(), llvm::SectionKind::isMergeableCString(), llvm::SectionKind::isMetadata(), llvm::SectionKind::isText(), llvm::SectionKind::isThreadLocal(), llvm::SectionKind::isWriteable(), llvm::ELF::SHF_ALLOC, llvm::ELF::SHF_ARM_PURECODE, llvm::ELF::SHF_EXECINSTR, llvm::ELF::SHF_MERGE, llvm::ELF::SHF_STRINGS, llvm::ELF::SHF_TLS, and llvm::ELF::SHF_WRITE.

Referenced by llvm::TargetLoweringObjectFileELF::getExplicitSectionGlobal(), and llvm::TargetLoweringObjectFileELF::SelectSectionForGlobal().

getELFSectionNameForGlobal()

static SmallString<128> getELFSectionNameForGlobal ( const GlobalObject *  GO, SectionKind  Kind, Mangler &  Mang, const TargetMachine &  TM, unsigned  EntrySize, bool  UniqueSectionName  )

static

Definition at line 594 of file TargetLoweringObjectFileImpl.cpp.

References llvm::DK_Lowering, llvm::DS_Error, F(), llvm::Module::getDataLayout(), llvm::TargetMachine::getNameWithPrefix(), llvm::GlobalValue::getParent(), llvm::DataLayout::getPreferredAlign(), getSectionPrefixForGlobal(), llvm::SectionKind::isMergeableConst(), llvm::SectionKind::isMergeableCString(), Name, llvm::cl::Prefix, print(), llvm::SmallVectorTemplateBase< T, bool >::push_back(), llvm::utostr(), and llvm::Align::value().

Referenced by llvm::TargetLoweringObjectFileELF::getExplicitSectionGlobal(), and selectELFSectionForGlobal().

getELFSectionType()

static unsigned getELFSectionType ( StringRef  Name, SectionKind  K  )

static

Definition at line 470 of file TargetLoweringObjectFileImpl.cpp.

References llvm::SectionKind::isBSS(), llvm::SectionKind::isThreadBSS(), llvm::ELF::SHT_FINI_ARRAY, llvm::ELF::SHT_INIT_ARRAY, llvm::ELF::SHT_NOBITS, llvm::ELF::SHT_NOTE, llvm::ELF::SHT_PREINIT_ARRAY, llvm::ELF::SHT_PROGBITS, and llvm::StringRef::startswith().

Referenced by llvm::TargetLoweringObjectFileELF::getExplicitSectionGlobal(), and selectELFSectionForGlobal().

getEntrySizeForKind()

static unsigned getEntrySizeForKind ( SectionKind  Kind )

static

Definition at line 549 of file TargetLoweringObjectFileImpl.cpp.

References assert(), llvm::SectionKind::isMergeable1ByteCString(), llvm::SectionKind::isMergeable2ByteCString(), llvm::SectionKind::isMergeable4ByteCString(), llvm::SectionKind::isMergeableConst(), llvm::SectionKind::isMergeableConst16(), llvm::SectionKind::isMergeableConst32(), llvm::SectionKind::isMergeableConst4(), llvm::SectionKind::isMergeableConst8(), and llvm::SectionKind::isMergeableCString().

Referenced by llvm::TargetLoweringObjectFileELF::getExplicitSectionGlobal(), selectELFSectionForGlobal(), and llvm::TargetLoweringObjectFileXCOFF::SelectSectionForGlobal().

getLinkedToSymbol()

static const MCSymbolELF* getLinkedToSymbol ( const GlobalObject *  GO, const TargetMachine &  TM  )

static

Definition at line 531 of file TargetLoweringObjectFileImpl.cpp.

References llvm::dyn_cast(), llvm::MDOperand::get(), llvm::GlobalObject::getMetadata(), llvm::MDNode::getOperand(), llvm::TargetMachine::getSymbol(), and llvm::report_fatal_error().

Referenced by llvm::TargetLoweringObjectFileELF::getExplicitSectionGlobal(), and llvm::TargetLoweringObjectFileELF::SelectSectionForGlobal().

GetObjCImageInfo()

static void GetObjCImageInfo ( Module &  M, unsigned &  Version, unsigned &  Flags, StringRef &  Section  )

static

Definition at line 69 of file TargetLoweringObjectFileImpl.cpp.

References llvm::Module::getModuleFlagsMetadata(), and llvm::Module::Require.

Referenced by llvm::TargetLoweringObjectFileELF::emitModuleMetadata(), llvm::TargetLoweringObjectFileMachO::emitModuleMetadata(), and llvm::TargetLoweringObjectFileCOFF::emitModuleMetadata().

getSectionPrefixForGlobal()

static StringRef getSectionPrefixForGlobal ( SectionKind  Kind )

static

Return the section prefix name used by options FunctionsSections and DataSections.

Definition at line 575 of file TargetLoweringObjectFileImpl.cpp.

References llvm::SectionKind::isBSS(), llvm::SectionKind::isData(), llvm::SectionKind::isReadOnly(), llvm::SectionKind::isReadOnlyWithRel(), llvm::SectionKind::isText(), llvm::SectionKind::isThreadBSS(), llvm::SectionKind::isThreadData(), and llvm_unreachable.

Referenced by getELFSectionNameForGlobal(), and selectWasmSectionForGlobal().

getSelectionForCOFF()

static int getSelectionForCOFF ( const GlobalValue *  GV )

static

Definition at line 1421 of file TargetLoweringObjectFileImpl.cpp.

References llvm::Comdat::Any, C, llvm::Comdat::ExactMatch, llvm::GlobalValue::getBaseObject(), llvm::GlobalValue::getComdat(), getComdatGVForCOFF(), llvm::COFF::IMAGE_COMDAT_SELECT_ANY, llvm::COFF::IMAGE_COMDAT_SELECT_ASSOCIATIVE, llvm::COFF::IMAGE_COMDAT_SELECT_EXACT_MATCH, llvm::COFF::IMAGE_COMDAT_SELECT_LARGEST, llvm::COFF::IMAGE_COMDAT_SELECT_NODUPLICATES, llvm::COFF::IMAGE_COMDAT_SELECT_SAME_SIZE, llvm::Comdat::Largest, llvm::Comdat::NoDuplicates, and llvm::Comdat::SameSize.

Referenced by llvm::TargetLoweringObjectFileCOFF::getExplicitSectionGlobal(), and llvm::TargetLoweringObjectFileCOFF::SelectSectionForGlobal().

getStaticStructorSection()

static MCSectionELF* getStaticStructorSection ( MCContext &  Ctx, bool  UseInitArray, bool  IsCtor, unsigned  Priority, const MCSymbol *  KeySym  )

static

Definition at line 901 of file TargetLoweringObjectFileImpl.cpp.

References llvm::format(), llvm::MCContext::getELFSection(), llvm::MCSymbol::getName(), Name, llvm::ELF::SHF_ALLOC, llvm::ELF::SHF_GROUP, llvm::ELF::SHF_WRITE, llvm::ELF::SHT_FINI_ARRAY, llvm::ELF::SHT_INIT_ARRAY, llvm::ELF::SHT_PROGBITS, and llvm::utostr().

Referenced by llvm::TargetLoweringObjectFileELF::getStaticCtorSection(), and llvm::TargetLoweringObjectFileELF::getStaticDtorSection().

getWasmComdat()

static const Comdat* getWasmComdat ( const GlobalValue *  GV )

static

Definition at line 1828 of file TargetLoweringObjectFileImpl.cpp.

References llvm::Comdat::Any, C, llvm::GlobalValue::getComdat(), llvm::Comdat::getName(), llvm::Comdat::getSelectionKind(), and llvm::report_fatal_error().

Referenced by llvm::TargetLoweringObjectFileWasm::getExplicitSectionGlobal(), and selectWasmSectionForGlobal().

scalarConstantToHexString()

static std::string scalarConstantToHexString ( const Constant *  C )

static

Definition at line 1757 of file TargetLoweringObjectFileImpl.cpp.

References APIntToHexString(), E, llvm::Constant::getAggregateElement(), llvm::Type::getArrayNumElements(), llvm::APInt::getNullValue(), llvm::Type::getPrimitiveSizeInBits(), llvm::Value::getType(), and I.

Referenced by llvm::TargetLoweringObjectFileCOFF::getSectionForConstant().

selectELFSectionForGlobal()

static MCSectionELF* selectELFSectionForGlobal ( MCContext &  Ctx, const GlobalObject *  GO, SectionKind  Kind, Mangler &  Mang, const TargetMachine &  TM, bool  EmitUniqueSection, unsigned  Flags, unsigned *  NextUniqueID, const MCSymbolELF *  AssociatedSymbol  )

static

Definition at line 757 of file TargetLoweringObjectFileImpl.cpp.

References C, llvm::MCContext::GenericSectionID, getELFComdat(), llvm::MCContext::getELFSection(), getELFSectionNameForGlobal(), getELFSectionType(), getEntrySizeForKind(), llvm::Value::getName(), llvm::TargetMachine::getUniqueSectionNames(), llvm::SectionKind::isExecuteOnly(), Name, and llvm::ELF::SHF_GROUP.

Referenced by llvm::TargetLoweringObjectFileELF::getSectionForJumpTable(), and llvm::TargetLoweringObjectFileELF::SelectSectionForGlobal().

selectWasmSectionForGlobal()

static MCSectionWasm* selectWasmSectionForGlobal ( MCContext &  Ctx, const GlobalObject *  GO, SectionKind  Kind, Mangler &  Mang, const TargetMachine &  TM, bool  EmitUniqueSection, unsigned *  NextUniqueID  )

static

Definition at line 1871 of file TargetLoweringObjectFileImpl.cpp.

References C, F(), llvm::MCContext::GenericSectionID, llvm::Value::getName(), llvm::TargetMachine::getNameWithPrefix(), getSectionPrefixForGlobal(), llvm::TargetMachine::getUniqueSectionNames(), getWasmComdat(), llvm::MCContext::getWasmSection(), Name, and llvm::SmallVectorTemplateBase< T, bool >::push_back().

Referenced by llvm::TargetLoweringObjectFileWasm::SelectSectionForGlobal().