llvm::GlobalValue Class Reference

#include "llvm/IR/GlobalValue.h"

Inheritance diagram for llvm::GlobalValue:

Collaboration diagram for llvm::GlobalValue:

Public Types
enum	LinkageTypes {   ExternalLinkage = 0, AvailableExternallyLinkage, LinkOnceAnyLinkage, LinkOnceODRLinkage,   WeakAnyLinkage, WeakODRLinkage, AppendingLinkage, InternalLinkage,   PrivateLinkage, ExternalWeakLinkage, CommonLinkage }
	An enumeration for the kinds of linkage for global values. More...
enum	VisibilityTypes { DefaultVisibility = 0, HiddenVisibility, ProtectedVisibility }
	An enumeration for the kinds of visibility of global values. More...
enum	DLLStorageClassTypes { DefaultStorageClass = 0, DLLImportStorageClass = 1, DLLExportStorageClass = 2 }
	Storage classes of global values for PE targets. More...
enum	ThreadLocalMode {   NotThreadLocal = 0, GeneralDynamicTLSModel, LocalDynamicTLSModel, InitialExecTLSModel,   LocalExecTLSModel }
enum	UnnamedAddr { UnnamedAddr::None, UnnamedAddr::Local, UnnamedAddr::Global }
using	GUID = uint64_t
	Declare a type to represent a global unique identifier for a global value. More...
Public Types inherited from llvm::User
using	op_iterator = Use *
using	const_op_iterator = const Use *
using	op_range = iterator_range< op_iterator >
using	const_op_range = iterator_range< const_op_iterator >
Public Types inherited from llvm::Value
enum	ValueTy
	Concrete subclass of this. More...
using	use_iterator = use_iterator_impl< Use >
using	const_use_iterator = use_iterator_impl< const Use >
using	user_iterator = user_iterator_impl< User >
using	const_user_iterator = user_iterator_impl< const User >

Public Member Functions
	GlobalValue (const GlobalValue &)=delete
unsigned	getAlignment () const
unsigned	getAddressSpace () const
bool	hasGlobalUnnamedAddr () const
bool	hasAtLeastLocalUnnamedAddr () const
	Returns true if this value's address is not significant in this module. More...
UnnamedAddr	getUnnamedAddr () const
void	setUnnamedAddr (UnnamedAddr Val)
bool	hasComdat () const
const Comdat *	getComdat () const
Comdat *	getComdat ()
VisibilityTypes	getVisibility () const
bool	hasDefaultVisibility () const
bool	hasHiddenVisibility () const
bool	hasProtectedVisibility () const
void	setVisibility (VisibilityTypes V)
bool	isThreadLocal () const
	If the value is "Thread Local", its value isn't shared by the threads. More...
void	setThreadLocal (bool Val)
void	setThreadLocalMode (ThreadLocalMode Val)
ThreadLocalMode	getThreadLocalMode () const
DLLStorageClassTypes	getDLLStorageClass () const
bool	hasDLLImportStorageClass () const
bool	hasDLLExportStorageClass () const
void	setDLLStorageClass (DLLStorageClassTypes C)
bool	hasSection () const
StringRef	getSection () const
PointerType *	getType () const
	Global values are always pointers. More...
Type *	getValueType () const
void	setDSOLocal (bool Local)
bool	isDSOLocal () const
bool	isDefinitionExact () const
	Return true if the currently visible definition of this global (if any) is exactly the definition we will see at runtime. More...
bool	hasExactDefinition () const
	Return true if this global has an exact defintion. More...
bool	isInterposable () const
	Return true if this global's definition can be substituted with an arbitrary definition at link time. More...
bool	hasExternalLinkage () const
bool	hasAvailableExternallyLinkage () const
bool	hasLinkOnceLinkage () const
bool	hasLinkOnceODRLinkage () const
bool	hasWeakLinkage () const
bool	hasWeakAnyLinkage () const
bool	hasWeakODRLinkage () const
bool	hasAppendingLinkage () const
bool	hasInternalLinkage () const
bool	hasPrivateLinkage () const
bool	hasLocalLinkage () const
bool	hasExternalWeakLinkage () const
bool	hasCommonLinkage () const
bool	hasValidDeclarationLinkage () const
void	setLinkage (LinkageTypes LT)
LinkageTypes	getLinkage () const
bool	isDiscardableIfUnused () const
bool	isWeakForLinker () const
std::string	getGlobalIdentifier () const
	Return the modified name for this global value suitable to be used as the key for a global lookup (e.g. More...
GUID	getGUID () const
	Return a 64-bit global unique ID constructed from global value name (i.e. More...
bool	isDeclaration () const
	Return true if the primary definition of this global value is outside of the current translation unit. More...
bool	isDeclarationForLinker () const
bool	isStrongDefinitionForLinker () const
	Returns true if this global's definition will be the one chosen by the linker. More...
bool	canIncreaseAlignment () const
const GlobalObject *	getBaseObject () const
GlobalObject *	getBaseObject ()
bool	isAbsoluteSymbolRef () const
	Returns whether this is a reference to an absolute symbol. More...
Optional< ConstantRange >	getAbsoluteSymbolRange () const
	If this is an absolute symbol reference, returns the range of the symbol, otherwise returns None. More...
void	removeFromParent ()
	This method unlinks 'this' from the containing module, but does not delete it. More...
void	eraseFromParent ()
	This method unlinks 'this' from the containing module and deletes it. More...
Module *	getParent ()
	Get the module that this global value is contained inside of... More...
const Module *	getParent () const
bool	canBeOmittedFromSymbolTable () const
	True if GV can be left out of the object symbol table. More...
Materialization
Materialization is used to construct functions only as they're needed. This is useful to reduce memory usage in LLVM or parsing work done by the BitcodeReader to load the Module.
bool	isMaterializable () const
	If this function's Module is being lazily streamed in functions from disk or some other source, this method can be used to check to see if the function has been read in yet or not. More...
Error	materialize ()
	Make sure this GlobalValue is fully read. More...
Public Member Functions inherited from llvm::Constant
void	operator= (const Constant &)=delete
	Constant (const Constant &)=delete
bool	isNullValue () const
	Return true if this is the value that would be returned by getNullValue. More...
bool	isOneValue () const
	Returns true if the value is one. More...
bool	isAllOnesValue () const
	Return true if this is the value that would be returned by getAllOnesValue. More...
bool	isNegativeZeroValue () const
	Return true if the value is what would be returned by getZeroValueForNegation. More...
bool	isZeroValue () const
	Return true if the value is negative zero or null value. More...
bool	isNotMinSignedValue () const
	Return true if the value is not the smallest signed value. More...
bool	isMinSignedValue () const
	Return true if the value is the smallest signed value. More...
bool	isFiniteNonZeroFP () const
	Return true if this is a finite and non-zero floating-point scalar constant or a vector constant with all finite and non-zero elements. More...
bool	isNormalFP () const
	Return true if this is a normal (as opposed to denormal) floating-point scalar constant or a vector constant with all normal elements. More...
bool	hasExactInverseFP () const
	Return true if this scalar has an exact multiplicative inverse or this vector has an exact multiplicative inverse for each element in the vector. More...
bool	isNaN () const
	Return true if this is a floating-point NaN constant or a vector floating-point constant with all NaN elements. More...
bool	containsUndefElement () const
	Return true if this is a vector constant that includes any undefined elements. More...
bool	canTrap () const
	Return true if evaluation of this constant could trap. More...
bool	isThreadDependent () const
	Return true if the value can vary between threads. More...
bool	isDLLImportDependent () const
	Return true if the value is dependent on a dllimport variable. More...
bool	isConstantUsed () const
	Return true if the constant has users other than constant expressions and other dangling things. More...
bool	needsRelocation () const
	This method classifies the entry according to whether or not it may generate a relocation entry. More...
Constant *	getAggregateElement (unsigned Elt) const
	For aggregates (struct/array/vector) return the constant that corresponds to the specified element if possible, or null if not. More...
Constant *	getAggregateElement (Constant *Elt) const
Constant *	getSplatValue () const
	If this is a splat vector constant, meaning that all of the elements have the same value, return that value. More...
const APInt &	getUniqueInteger () const
	If C is a constant integer then return its value, otherwise C must be a vector of constant integers, all equal, and the common value is returned. More...
void	destroyConstant ()
	Called if some element of this constant is no longer valid. More...
void	handleOperandChange (Value *, Value *)
	This method is a special form of User::replaceUsesOfWith (which does not work on constants) that does work on constants. More...
void	removeDeadConstantUsers () const
	If there are any dead constant users dangling off of this constant, remove them. More...
const Constant *	stripPointerCasts () const
Constant *	stripPointerCasts ()
Public Member Functions inherited from llvm::User
	User (const User &)=delete
void	operator delete (void *Usr)
	Free memory allocated for User and Use objects. More...
void	operator delete (void *Usr, unsigned)
	Placement delete - required by std, called if the ctor throws. More...
void	operator delete (void *Usr, unsigned, bool)
	Placement delete - required by std, called if the ctor throws. More...
const Use *	getOperandList () const
Use *	getOperandList ()
Value *	getOperand (unsigned i) const
void	setOperand (unsigned i, Value *Val)
const Use &	getOperandUse (unsigned i) const
Use &	getOperandUse (unsigned i)
unsigned	getNumOperands () const
ArrayRef< const uint8_t >	getDescriptor () const
	Returns the descriptor co-allocated with this User instance. More...
MutableArrayRef< uint8_t >	getDescriptor ()
	Returns the descriptor co-allocated with this User instance. More...
void	setGlobalVariableNumOperands (unsigned NumOps)
	Set the number of operands on a GlobalVariable. More...
void	setNumHungOffUseOperands (unsigned NumOps)
	Subclasses with hung off uses need to manage the operand count themselves. More...
op_iterator	op_begin ()
const_op_iterator	op_begin () const
op_iterator	op_end ()
const_op_iterator	op_end () const
op_range	operands ()
const_op_range	operands () const
value_op_iterator	value_op_begin ()
value_op_iterator	value_op_end ()
iterator_range< value_op_iterator >	operand_values ()
const_value_op_iterator	value_op_begin () const
const_value_op_iterator	value_op_end () const
iterator_range< const_value_op_iterator >	operand_values () const
void	dropAllReferences ()
	Drop all references to operands. More...
void	replaceUsesOfWith (Value *From, Value *To)
	Replace uses of one Value with another. More...
Public Member Functions inherited from llvm::Value
	Value (const Value &)=delete
Value &	operator= (const Value &)=delete
void	deleteValue ()
	Delete a pointer to a generic Value. More...
void	dump () const
	Support for debugging, callable in GDB: V->dump() More...
Type *	getType () const
	All values are typed, get the type of this value. More...
LLVMContext &	getContext () const
	All values hold a context through their type. More...
bool	hasName () const
ValueName *	getValueName () const
void	setValueName (ValueName *VN)
StringRef	getName () const
	Return a constant reference to the value's name. More...
void	setName (const Twine &Name)
	Change the name of the value. More...
void	takeName (Value *V)
	Transfer the name from V to this value. More...
void	replaceAllUsesWith (Value *V)
	Change all uses of this to point to a new Value. More...
void	replaceNonMetadataUsesWith (Value *V)
	Change non-metadata uses of this to point to a new Value. More...
void	replaceUsesOutsideBlock (Value *V, BasicBlock *BB)
	replaceUsesOutsideBlock - Go through the uses list for this definition and make each use point to "V" instead of "this" when the use is outside the block. More...
void	assertModuleIsMaterializedImpl () const
void	assertModuleIsMaterialized () const
bool	use_empty () const
bool	materialized_use_empty () const
use_iterator	materialized_use_begin ()
const_use_iterator	materialized_use_begin () const
use_iterator	use_begin ()
const_use_iterator	use_begin () const
use_iterator	use_end ()
const_use_iterator	use_end () const
iterator_range< use_iterator >	materialized_uses ()
iterator_range< const_use_iterator >	materialized_uses () const
iterator_range< use_iterator >	uses ()
iterator_range< const_use_iterator >	uses () const
bool	user_empty () const
user_iterator	materialized_user_begin ()
const_user_iterator	materialized_user_begin () const
user_iterator	user_begin ()
const_user_iterator	user_begin () const
user_iterator	user_end ()
const_user_iterator	user_end () const
User *	user_back ()
const User *	user_back () const
iterator_range< user_iterator >	materialized_users ()
iterator_range< const_user_iterator >	materialized_users () const
iterator_range< user_iterator >	users ()
iterator_range< const_user_iterator >	users () const
bool	hasOneUse () const
	Return true if there is exactly one user of this value. More...
bool	hasNUses (unsigned N) const
	Return true if this Value has exactly N users. More...
bool	hasNUsesOrMore (unsigned N) const
	Return true if this value has N users or more. More...
bool	isUsedInBasicBlock (const BasicBlock *BB) const
	Check if this value is used in the specified basic block. More...
unsigned	getNumUses () const
	This method computes the number of uses of this Value. More...
void	addUse (Use &U)
	This method should only be used by the Use class. More...
unsigned	getValueID () const
	Return an ID for the concrete type of this object. More...
unsigned	getRawSubclassOptionalData () const
	Return the raw optional flags value contained in this value. More...
void	clearSubclassOptionalData ()
	Clear the optional flags contained in this value. More...
bool	hasSameSubclassOptionalData (const Value *V) const
	Check the optional flags for equality. More...
bool	hasValueHandle () const
	Return true if there is a value handle associated with this value. More...
bool	isUsedByMetadata () const
	Return true if there is metadata referencing this value. More...
bool	isSwiftError () const
	Return true if this value is a swifterror value. More...
const Value *	stripPointerCasts () const
	Strip off pointer casts, all-zero GEPs, and aliases. More...
Value *	stripPointerCasts ()
const Value *	stripPointerCastsAndInvariantGroups () const
	Strip off pointer casts, all-zero GEPs, aliases and invariant group info. More...
Value *	stripPointerCastsAndInvariantGroups ()
const Value *	stripPointerCastsNoFollowAliases () const
	Strip off pointer casts and all-zero GEPs. More...
Value *	stripPointerCastsNoFollowAliases ()
const Value *	stripInBoundsConstantOffsets () const
	Strip off pointer casts and all-constant inbounds GEPs. More...
Value *	stripInBoundsConstantOffsets ()
const Value *	stripAndAccumulateInBoundsConstantOffsets (const DataLayout &DL, APInt &Offset) const
	Accumulate offsets from stripInBoundsConstantOffsets(). More...
Value *	stripAndAccumulateInBoundsConstantOffsets (const DataLayout &DL, APInt &Offset)
const Value *	stripInBoundsOffsets () const
	Strip off pointer casts and inbounds GEPs. More...
Value *	stripInBoundsOffsets ()
uint64_t	getPointerDereferenceableBytes (const DataLayout &DL, bool &CanBeNull) const
	Returns the number of bytes known to be dereferenceable for the pointer value. More...
unsigned	getPointerAlignment (const DataLayout &DL) const
	Returns an alignment of the pointer value. More...
const Value *	DoPHITranslation (const BasicBlock *CurBB, const BasicBlock *PredBB) const
	Translate PHI node to its predecessor from the given basic block. More...
Value *	DoPHITranslation (const BasicBlock *CurBB, const BasicBlock *PredBB)
void	mutateType (Type *Ty)
	Mutate the type of this Value to be of the specified type. More...
template<class Compare >
void	sortUseList (Compare Cmp)
	Sort the use-list. More...
void	reverseUseList ()
	Reverse the use-list. More...
void	print (raw_ostream &O, bool IsForDebug=false) const
	Implement operator<< on Value. More...
void	print (raw_ostream &O, ModuleSlotTracker &MST, bool IsForDebug=false) const
void	printAsOperand (raw_ostream &O, bool PrintType=true, const Module *M=nullptr) const
	Print the name of this Value out to the specified raw_ostream. More...
void	printAsOperand (raw_ostream &O, bool PrintType, ModuleSlotTracker &MST) const

Static Public Member Functions
static UnnamedAddr	getMinUnnamedAddr (UnnamedAddr A, UnnamedAddr B)
static LinkageTypes	getLinkOnceLinkage (bool ODR)
static LinkageTypes	getWeakLinkage (bool ODR)
static bool	isExternalLinkage (LinkageTypes Linkage)
static bool	isAvailableExternallyLinkage (LinkageTypes Linkage)
static bool	isLinkOnceODRLinkage (LinkageTypes Linkage)
static bool	isLinkOnceLinkage (LinkageTypes Linkage)
static bool	isWeakAnyLinkage (LinkageTypes Linkage)
static bool	isWeakODRLinkage (LinkageTypes Linkage)
static bool	isWeakLinkage (LinkageTypes Linkage)
static bool	isAppendingLinkage (LinkageTypes Linkage)
static bool	isInternalLinkage (LinkageTypes Linkage)
static bool	isPrivateLinkage (LinkageTypes Linkage)
static bool	isLocalLinkage (LinkageTypes Linkage)
static bool	isExternalWeakLinkage (LinkageTypes Linkage)
static bool	isCommonLinkage (LinkageTypes Linkage)
static bool	isValidDeclarationLinkage (LinkageTypes Linkage)
static bool	isInterposableLinkage (LinkageTypes Linkage)
	Whether the definition of this global may be replaced by something non-equivalent at link time. More...
static bool	isDiscardableIfUnused (LinkageTypes Linkage)
	Whether the definition of this global may be discarded if it is not used in its compilation unit. More...
static bool	isWeakForLinker (LinkageTypes Linkage)
	Whether the definition of this global may be replaced at link time. More...
static StringRef	dropLLVMManglingEscape (StringRef Name)
	If the given string begins with the GlobalValue name mangling escape character '\1', drop it. More...
static std::string	getGlobalIdentifier (StringRef Name, GlobalValue::LinkageTypes Linkage, StringRef FileName)
	Return the modified name for a global value suitable to be used as the key for a global lookup (e.g. More...
static GUID	getGUID (StringRef GlobalName)
	Return a 64-bit global unique ID constructed from global value name (i.e. More...
static bool	classof (const Value *V)
Static Public Member Functions inherited from llvm::Constant
static bool	classof (const Value *V)
static Constant *	getNullValue (Type *Ty)
	Constructor to create a '0' constant of arbitrary type. More...
static Constant *	getAllOnesValue (Type *Ty)
static Constant *	getIntegerValue (Type *Ty, const APInt &V)
	Return the value for an integer or pointer constant, or a vector thereof, with the given scalar value. More...
Static Public Member Functions inherited from llvm::User
static bool	classof (const Value *V)

Protected Member Functions
	GlobalValue (Type *Ty, ValueTy VTy, Use *Ops, unsigned NumOps, LinkageTypes Linkage, const Twine &Name, unsigned AddressSpace)
unsigned	getGlobalValueSubClassData () const
void	setGlobalValueSubClassData (unsigned V)
void	setParent (Module *parent)
	~GlobalValue ()
void	copyAttributesFrom (const GlobalValue *Src)
	Copy all additional attributes (those not needed to create a GlobalValue) from the GlobalValue Src to this one. More...
Protected Member Functions inherited from llvm::Constant
	Constant (Type *ty, ValueTy vty, Use *Ops, unsigned NumOps)
Protected Member Functions inherited from llvm::User
void *	operator new (size_t Size)
	Allocate a User with an operand pointer co-allocated. More...
void *	operator new (size_t Size, unsigned Us)
	Allocate a User with the operands co-allocated. More...
void *	operator new (size_t Size, unsigned Us, unsigned DescBytes)
	Allocate a User with the operands co-allocated. More...
	User (Type *ty, unsigned vty, Use *, unsigned NumOps)
void	allocHungoffUses (unsigned N, bool IsPhi=false)
	Allocate the array of Uses, followed by a pointer (with bottom bit set) to the User. More...
void	growHungoffUses (unsigned N, bool IsPhi=false)
	Grow the number of hung off uses. More...
	~User ()=default
template<int Idx>
Use &	Op ()
template<int Idx>
const Use &	Op () const
Protected Member Functions inherited from llvm::Value
	Value (Type *Ty, unsigned scid)
	~Value ()
	Value's destructor should be virtual by design, but that would require that Value and all of its subclasses have a vtable that effectively duplicates the information in the value ID. More...
unsigned short	getSubclassDataFromValue () const
void	setValueSubclassData (unsigned short D)

Protected Attributes
Type *	ValueType
unsigned	Linkage: 4
unsigned	Visibility: 2
unsigned	UnnamedAddrVal: 2
unsigned	DllStorageClass: 2
unsigned	ThreadLocal: 3
unsigned	HasLLVMReservedName: 1
	True if the function's name starts with "llvm.". More...
unsigned	IsDSOLocal: 1
	If true then there is a definition within the same linkage unit and that definition cannot be runtime preempted. More...
Intrinsic::ID	IntID
	The intrinsic ID for this subclass (which must be a Function). More...
Module *	Parent
Protected Attributes inherited from llvm::Value
unsigned char	SubclassOptionalData: 7
	Hold subclass data that can be dropped. More...
unsigned	NumUserOperands: NumUserOperandsBits
unsigned	IsUsedByMD: 1
unsigned	HasName: 1
unsigned	HasHungOffUses: 1
unsigned	HasDescriptor: 1

Static Protected Attributes
static const unsigned	GlobalValueSubClassDataBits = 17

Friends
class	Constant

Additional Inherited Members
Static Public Attributes inherited from llvm::Value
static const unsigned	MaxAlignmentExponent = 29
	The maximum alignment for instructions. More...
static const unsigned	MaximumAlignment = 1u << MaxAlignmentExponent
Protected Types inherited from llvm::Value
enum	: unsigned { NumUserOperandsBits = 28 }
	The number of operands in the subclass. More...
Static Protected Member Functions inherited from llvm::User
template<int Idx, typename U >
static Use &	OpFrom (const U *that)

Detailed Description

Definition at line 45 of file GlobalValue.h.

Member Typedef Documentation

GUID

using llvm::GlobalValue::GUID = uint64_t

Declare a type to represent a global unique identifier for a global value.

This is a 64 bits hash that is used by PGO and ThinLTO to have a compact unique way to identify a symbol.

Definition at line 493 of file GlobalValue.h.

Member Enumeration Documentation

DLLStorageClassTypes

enum llvm::GlobalValue::DLLStorageClassTypes

Storage classes of global values for PE targets.

Enumerator
DefaultStorageClass
DLLImportStorageClass	Function to be imported from DLL.
DLLExportStorageClass	Function to be accessible from DLL.

Definition at line 70 of file GlobalValue.h.

LinkageTypes

enum llvm::GlobalValue::LinkageTypes

An enumeration for the kinds of linkage for global values.

Enumerator
ExternalLinkage	Externally visible function.
AvailableExternallyLinkage	Available for inspection, not emission.
LinkOnceAnyLinkage	Keep one copy of function when linking (inline)
LinkOnceODRLinkage	Same, but only replaced by something equivalent.
WeakAnyLinkage	Keep one copy of named function when linking (weak)
WeakODRLinkage	Same, but only replaced by something equivalent.
AppendingLinkage	Special purpose, only applies to global arrays.
InternalLinkage	Rename collisions when linking (static functions).
PrivateLinkage	Like Internal, but omit from symbol table.
ExternalWeakLinkage	ExternalWeak linkage description.
CommonLinkage	Tentative definitions.

Definition at line 48 of file GlobalValue.h.

ThreadLocalMode

enum llvm::GlobalValue::ThreadLocalMode

Enumerator
NotThreadLocal
GeneralDynamicTLSModel
LocalDynamicTLSModel
InitialExecTLSModel
LocalExecTLSModel

Definition at line 181 of file GlobalValue.h.

UnnamedAddr

enum llvm::GlobalValue::UnnamedAddr

strong

Enumerator
None
Local
Global

Definition at line 194 of file GlobalValue.h.

VisibilityTypes

enum llvm::GlobalValue::VisibilityTypes

An enumeration for the kinds of visibility of global values.

Enumerator
DefaultVisibility	The GV is visible.
HiddenVisibility	The GV is hidden.
ProtectedVisibility	The GV is protected.

Definition at line 63 of file GlobalValue.h.

Constructor & Destructor Documentation

GlobalValue() [1/2]

llvm::GlobalValue::GlobalValue ( Type *  Ty, ValueTy  VTy, Use *  Ops, unsigned  NumOps, LinkageTypes  Linkage, const Twine &  Name, unsigned  AddressSpace  )

inlineprotected

Definition at line 77 of file GlobalValue.h.

References llvm::None.

~GlobalValue()

llvm::GlobalValue::~GlobalValue ( )

inlineprotected

Definition at line 176 of file GlobalValue.h.

GlobalValue() [2/2]

llvm::GlobalValue::GlobalValue ( const GlobalValue &  )

delete

Member Function Documentation

canBeOmittedFromSymbolTable()

bool GlobalValue::canBeOmittedFromSymbolTable

(

)

const

True if GV can be left out of the object symbol table.

This is the case for linkonce_odr values whose address is not significant. While legal, it is not normally profitable to omit them from the .o symbol table. Using this analysis makes sense when the information can be passed down to the linker or we are in LTO.

Definition at line 289 of file Globals.cpp.

References hasAtLeastLocalUnnamedAddr(), hasGlobalUnnamedAddr(), and hasLinkOnceODRLinkage().

Referenced by canBeHidden(), and llvm::LTOModule::makeBuffer().

canIncreaseAlignment()

bool GlobalValue::canIncreaseAlignment

(

)

const

Definition at line 220 of file Globals.cpp.

References getAlignment(), llvm::Module::getTargetTriple(), hasSection(), isDSOLocal(), isStrongDefinitionForLinker(), and Parent.

Referenced by despeculateCountZeros().

classof()

static bool llvm::GlobalValue::classof ( const Value *  V )

inlinestatic

Definition at line 570 of file GlobalValue.h.

References llvm::Value::getValueID().

copyAttributesFrom()

void GlobalValue::copyAttributesFrom ( const GlobalValue *  Src )

protected

Copy all additional attributes (those not needed to create a GlobalValue) from the GlobalValue Src to this one.

copyAttributesFrom - copy all additional attributes (those not needed to create a GlobalValue) from the GlobalValue Src to this one.

Definition at line 66 of file Globals.cpp.

References getDLLStorageClass(), getUnnamedAddr(), getVisibility(), isDSOLocal(), setDLLStorageClass(), setDSOLocal(), setUnnamedAddr(), and setVisibility().

Referenced by llvm::GlobalIFunc::copyAttributesFrom(), llvm::GlobalAlias::copyAttributesFrom(), and llvm::GlobalObject::copyAttributesFrom().

dropLLVMManglingEscape()

static StringRef llvm::GlobalValue::dropLLVMManglingEscape ( StringRef  Name )

inlinestatic

If the given string begins with the GlobalValue name mangling escape character '\1', drop it.

This function applies a specific mangling that is used in PGO profiles, among other things. If you're trying to get a symbol name for an arbitrary GlobalValue, this is not the function you're looking for; see Mangler.h.

Definition at line 472 of file GlobalValue.h.

References llvm::StringRef::empty(), Name, and llvm::StringRef::substr().

Referenced by llvm::DwarfUnit::addLinkageName(), llvm::DiagnosticInfoOptimizationBase::Argument::Argument(), llvm::WinException::beginFunction(), llvm::lto::createWriteIndexesThinBackend(), llvm::AsmPrinter::EmitDebugValue(), llvm::WinException::endFunclet(), getMCSymbolForMBB(), llvm::DiagnosticInfoOptimizationBase::getMsg(), getUnderlyingArgReg(), INITIALIZE_PASS(), instrumentMaskedLoadOrStore(), recoverFramePointer(), llvm::lto::LTO::run(), and sanitizeFunctionName().

eraseFromParent()

void GlobalValue::eraseFromParent

(

)

This method unlinks 'this' from the containing module and deletes it.

Definition at line 85 of file Globals.cpp.

References llvm::Value::getValueID(), and llvm_unreachable.

Referenced by deleteIfDead(), FunctionNumber(), getArrayElements(), getMinVisibility(), maybeSetDSOLocal(), and llvm::GlobalDCEPass::run().

getAbsoluteSymbolRange()

Optional< ConstantRange > GlobalValue::getAbsoluteSymbolRange

(

)

const

If this is an absolute symbol reference, returns the range of the symbol, otherwise returns None.

Definition at line 277 of file Globals.cpp.

References llvm::dyn_cast(), llvm::getConstantRangeFromMetadata(), llvm::LLVMContext::MD_absolute_symbol, and llvm::None.

Referenced by llvm::X86Subtarget::classifyGlobalReference().

getAddressSpace()

unsigned GlobalValue::getAddressSpace

(

)

const

Definition at line 111 of file Globals.cpp.

References llvm::PointerType::getAddressSpace(), and getType().

Referenced by canCreateAliasFor(), llvm::CloneFunction(), llvm::convertToDeclaration(), doPromotion(), llvm::CodeExtractor::findInputsOutputs(), FunctionNumber(), llvm::Module::getOrInsertFunction(), llvm::getPtrStride(), getRetComponentType(), llvm::SelectionDAG::getSymbolFunctionGlobalAddress(), INITIALIZE_PASS(), isKnownTypeIdMember(), isObjectDereferencedInBlock(), isThunkProfitable(), maybePrintComdat(), and UpgradeIntrinsicFunction1().

getAlignment()

unsigned GlobalValue::getAlignment

(

)

const

Definition at line 97 of file Globals.cpp.

References getBaseObject().

Referenced by llvm::AMDGPUMachineFunction::allocateLDSGlobal(), canIncreaseAlignment(), llvm::ConstantFoldBinaryInstruction(), forEachUser(), getGVAlignmentLog2(), llvm::SystemZSubtarget::isPC32DBLSymbol(), isWordAligned(), isWorthFoldingADDlow(), llvm::LTOModule::makeBuffer(), PeepholePPC64ZExtGather(), llvm::GlobalObject::setAlignment(), and swapMIOperands().

getBaseObject() [1/2]

const GlobalObject * GlobalValue::getBaseObject

(

)

const

Definition at line 261 of file Globals.cpp.

References getBaseObject().

Referenced by llvm::AsmPrinter::emitGlobalGOTEquivs(), llvm::MipsTargetLowering::EmitInstrWithCustomInserter(), getAlignment(), getBaseObject(), getComdat(), getMinVisibility(), llvm::TargetLoweringObjectFileMachO::getNameWithPrefix(), getSection(), getSelectionForCOFF(), llvm::LanaiTargetLowering::LowerGlobalAddress(), and llvm::HexagonTargetLowering::LowerGLOBALADDRESS().

getBaseObject() [2/2]

GlobalObject* llvm::GlobalValue::getBaseObject ( )

inline

Definition at line 546 of file GlobalValue.h.

getComdat() [1/2]

const Comdat * GlobalValue::getComdat

(

)

const

Definition at line 171 of file Globals.cpp.

References assert(), getBaseObject(), llvm::Value::getContext(), llvm::LLVMContextImpl::GlobalObjectSections, hasSection(), and llvm::LLVMContext::pImpl.

Referenced by checkMachOComdat(), deleteIfDead(), llvm::FunctionImportGlobalProcessing::doImportAsDefinition(), llvm::filterDeadComdatFunctions(), getArrayElements(), getComdatGVForCOFF(), getELFComdat(), getMinVisibility(), getSelectionForCOFF(), getWasmComdat(), handleNonPrevailingComdat(), isEmptyFunction(), isInPartition(), optimizeGlobalsInModule(), and llvm::GlobalDCEPass::run().

getComdat() [2/2]

Comdat* llvm::GlobalValue::getComdat ( )

inline

Definition at line 228 of file GlobalValue.h.

getDLLStorageClass()

DLLStorageClassTypes llvm::GlobalValue::getDLLStorageClass ( ) const

inline

Definition at line 259 of file GlobalValue.h.

Referenced by copyAttributesFrom(), getEncodedDLLStorageClass(), instrumentMaskedLoadOrStore(), maybePrintComdat(), and OptimizeGlobalAliases().

getGlobalIdentifier() [1/2]

std::string GlobalValue::getGlobalIdentifier ( StringRef  Name, GlobalValue::LinkageTypes  Linkage, StringRef  FileName  )

static

Return the modified name for a global value suitable to be used as the key for a global lookup (e.g.

profile or ThinLTO). The value's original name is Name and has linkage of type Linkage. The value is defined in module FileName.

Definition at line 132 of file Globals.cpp.

References llvm::StringRef::empty(), isLocalLinkage(), Name, llvm::StringRef::str(), and llvm::StringRef::substr().

getGlobalIdentifier() [2/2]

std::string GlobalValue::getGlobalIdentifier

(

)

const

Return the modified name for this global value suitable to be used as the key for a global lookup (e.g.

profile or ThinLTO).

Definition at line 156 of file Globals.cpp.

References getLinkage(), llvm::Value::getName(), and getParent().

Referenced by llvm::getPGOFuncName(), resolveFwdRef(), and llvm::thinLTOInternalizeModule().

getGlobalValueSubClassData()

unsigned llvm::GlobalValue::getGlobalValueSubClassData ( ) const

inlineprotected

Definition at line 161 of file GlobalValue.h.

Referenced by llvm::GlobalObject::classof(), llvm::GlobalObject::getAlignment(), llvm::GlobalObject::getGlobalObjectSubClassData(), llvm::GlobalObject::hasSection(), llvm::GlobalObject::setAlignment(), and llvm::GlobalObject::setGlobalObjectSubClassData().

getGUID() [1/2]

static GUID llvm::GlobalValue::getGUID ( StringRef  GlobalName )

inlinestatic

Return a 64-bit global unique ID constructed from global value name (i.e.

returned by getGlobalIdentifier()).

Definition at line 497 of file GlobalValue.h.

References llvm::MD5Hash().

Referenced by llvm::buildModuleSummaryIndex(), computeAliasSummary(), computeVariableSummary(), llvm::FunctionImportGlobalProcessing::doImportAsDefinition(), llvm::ModuleSummaryIndex::getGlobalValueSummary(), llvm::ModuleSummaryIndex::getOrInsertValueInfo(), and writeTypeIdSummaryRecord().

getGUID() [2/2]

GUID llvm::GlobalValue::getGUID ( ) const

inline

Return a 64-bit global unique ID constructed from global value name (i.e.

returned by getGlobalIdentifier()).

Definition at line 501 of file GlobalValue.h.

References getGUID().

Referenced by llvm::ModuleSummaryIndex::addGlobalValueSummary(), addIntrinsicToSummary(), llvm::InstrProfSymtab::create(), llvm::lto::createWriteIndexesThinBackend(), FunctionNumber(), llvm::sampleprof::FunctionSamples::getGUID(), getGUID(), llvm::ModuleSummaryIndex::getOrInsertTypeIdSummary(), llvm::sampleprof::getRepInFormat(), llvm::ModuleSummaryIndex::getTypeIdSummary(), llvm::sampleprof::FunctionSamples::GUIDToFuncNameMapper::GUIDToFuncNameMapper(), llvm::yaml::CustomMappingTraits< TypeIdSummaryMapTy >::inputOne(), resolveFwdRef(), llvm::WholeProgramDevirtPass::run(), llvm::lto::LTO::run(), setLiveRoot(), and llvm::thinLTOInternalizeModule().

getLinkage()

LinkageTypes llvm::GlobalValue::getLinkage ( ) const

inline

Definition at line 451 of file GlobalValue.h.

Referenced by canBeHidden(), canCreateAliasFor(), llvm::canRenameComdatFunc(), llvm::CloneFunction(), llvm::orc::cloneFunctionDecl(), llvm::orc::cloneGlobalAliasDecl(), llvm::orc::cloneGlobalVariableDecl(), computeAliasSummary(), computeVariableSummary(), llvm::GlobalAlias::create(), llvm::createPGOFuncNameVar(), llvm::FunctionImportGlobalProcessing::doImportAsDefinition(), doPromotion(), forceRenaming(), forEachUser(), getArrayElements(), getEncodedLinkage(), getGlobalIdentifier(), llvm::getPGOFuncName(), getRetComponentType(), INITIALIZE_PASS(), instrumentMaskedLoadOrStore(), isKnownTypeIdMember(), isThunkProfitable(), isZeroLengthArray(), lowerObjCCall(), makeVisible(), maybePrintComdat(), llvm::needsComdatForCounter(), needsRuntimeRegistrationOfSectionRange(), OptimizeGlobalAliases(), PushArgMD(), removeGlobalCtors(), replaceAliasWithAliasee(), llvm::WholeProgramDevirtPass::run(), selectJumpTableArmEncoding(), shouldFixMainFunction(), shouldInstrumentBlock(), and UpgradeIntrinsicFunction1().

getLinkOnceLinkage()

static LinkageTypes llvm::GlobalValue::getLinkOnceLinkage ( bool  ODR )

inlinestatic

Definition at line 284 of file GlobalValue.h.

getMinUnnamedAddr()

static UnnamedAddr llvm::GlobalValue::getMinUnnamedAddr ( UnnamedAddr  A, UnnamedAddr  B  )

inlinestatic

Definition at line 218 of file GlobalValue.h.

References llvm::None.

Referenced by getMinVisibility().

getParent() [1/2]

Module* llvm::GlobalValue::getParent ( )

inline

Get the module that this global value is contained inside of...

Definition at line 566 of file GlobalValue.h.

Referenced by AddAlignmentAssumptions(), addBoundsChecking(), allCallersPassInValidPointerForArgument(), llvm::AMDGPUTargetLowering::analyzeFormalArgumentsCompute(), asmClobbersCTR(), llvm::Value::assertModuleIsMaterializedImpl(), buildFrameType(), callIntrinsic(), callsShareTOCBase(), canCreateAliasFor(), llvm::canRenameComdatFunc(), llvm::ARMTargetLowering::CCAssignFnForReturn(), llvm::changeToUnreachable(), llvm::AArch64Subtarget::classifyGlobalFunctionReference(), llvm::X86Subtarget::classifyGlobalFunctionReference(), llvm::PPCSubtarget::classifyGlobalReference(), llvm::AArch64Subtarget::ClassifyGlobalReference(), llvm::X86Subtarget::classifyGlobalReference(), llvm::CloneAndPruneIntoFromInst(), llvm::CloneBasicBlock(), llvm::CloneFunction(), llvm::CloneFunctionInto(), llvm::FunctionComparator::cmpOperations(), llvm::FunctionComparator::cmpTypes(), combineADDToADDZE(), combineInstructionsOverFunction(), CompareValueComplexity(), llvm::ComputeLegalValueVTs(), ComputePostOrders(), llvm::ConstantFoldCall(), ConvertDoubleToBytes(), llvm::convertToDeclaration(), copyComdat(), llvm::SanitizerStatReport::create(), llvm::GlobalAlias::create(), llvm::createAMDGPUFunctionInliningPass(), llvm::IRBuilderBase::CreateAssumption(), createClone(), llvm::createCodeGenPreparePass(), llvm::createConstantPropagationPass(), llvm::IRBuilderBase::CreateElementUnorderedAtomicMemCpy(), llvm::IRBuilderBase::CreateElementUnorderedAtomicMemMove(), llvm::IRBuilderBase::CreateElementUnorderedAtomicMemSet(), llvm::IRBuilderBase::CreateFAddReduce(), createFFSIntrinsic(), llvm::IRBuilderBase::CreateFMulReduce(), llvm::IRBuilderBase::CreateGCRelocate(), llvm::IRBuilderBase::CreateGCResult(), CreateGCStatepointCallCommon(), CreateGCStatepointInvokeCommon(), llvm::IRBuilderBase::CreateGlobalString(), llvm::createHWAddressSanitizerPass(), llvm::IRBuilderBase::CreateInvariantStart(), llvm::createLegacyPMBasicAAResult(), llvm::IRBuilderBase::CreateLifetimeEnd(), llvm::IRBuilderBase::CreateLifetimeStart(), llvm::IRBuilderBase::CreateMaskedStore(), llvm::IRBuilderBase::CreateMemCpy(), llvm::createMemDerefPrinter(), llvm::IRBuilderBase::CreateMemMove(), llvm::IRBuilderBase::CreateMemSet(), llvm::createPGOFuncNameVar(), createPopcntIntrinsic(), llvm::createPPCCTRLoopsVerify(), llvm::createSampleProfileLoaderPass(), llvm::createScalarizerPass(), llvm::createShadowStackGCLoweringPass(), CreateVarArgHelper(), CreateWrapper(), llvm::VerifierSupport::DebugInfoCheckFailed(), llvm::DemoteRegToStack(), llvm::FunctionImportGlobalProcessing::doImportAsDefinition(), doPromotion(), dumpIR(), eliminateTailRecursion(), llvm::AsmPrinter::EmitAlignment(), llvm::AArch64TargetLowering::emitAtomicCmpXchgNoStoreLLBalance(), llvm::ARMTargetLowering::emitAtomicCmpXchgNoStoreLLBalance(), llvm::AsmPrinter::EmitDebugValue(), llvm::AsmPrinter::EmitGlobalVariable(), llvm::AMDGPU::HSAMD::MetadataStreamerV2::emitKernel(), llvm::emitLinkerFlagsForGlobalCOFF(), llvm::HexagonTargetLowering::emitLoadLinked(), llvm::AArch64TargetLowering::emitLoadLinked(), llvm::ARMTargetLowering::emitLoadLinked(), llvm::AsmPrinter::EmitSpecialLLVMGlobal(), llvm::HexagonTargetLowering::emitStoreConditional(), llvm::AArch64TargetLowering::emitStoreConditional(), llvm::ARMTargetLowering::emitStoreConditional(), llvm::PPCTargetLowering::emitTrailingFence(), enableCallSafepoints(), ensurePromotedGV(), eraseDeadBBsAndChildren(), llvm::GlobalIFunc::eraseFromParent(), llvm::GlobalAlias::eraseFromParent(), llvm::GlobalVariable::eraseFromParent(), explicifyGuards(), llvm::CodeExtractor::extractCodeRegion(), llvm::findAllNVVMAnnotation(), findCalledFunction(), llvm::findDevirtualizableCallsForTypeTest(), llvm::AnalysisResolver::findImplPass(), llvm::CodeExtractor::findInputsOutputs(), llvm::findOneNVVMAnnotation(), findUser(), forceRenaming(), forEachUser(), llvm::StackSafetyInfo::FunctionInfo::FunctionInfo(), generateUnsignedDivisionCode(), getAlignment(), llvm::getBestSimplifyQuery(), llvm::CallSiteBase<>::getCaller(), getChainID(), getComdatGVForCOFF(), llvm::MachineFunction::getDataLayout(), llvm::ScalarEvolution::getDataLayout(), getDebugLocString(), llvm::TargetLoweringBase::getDefaultSafeStackPointerLocation(), llvm::AMDGPUSubtarget::getExplicitKernArgSize(), getFirstNonAllocaInTheEntryBlock(), getGlobalIdentifier(), GetGlobalTypeString(), llvm::getInlineCost(), llvm::TargetLoweringBase::getIRStackGuard(), llvm::TargetLibraryInfoImpl::getLibFunc(), getLoadStackGuard(), llvm::ExecutionEngine::getMangledName(), getMinVisibility(), llvm::GlobalsAAResult::getModRefBehavior(), llvm::Trace::getModule(), llvm::BasicBlock::getModule(), getModuleFromVal(), getMOVL(), llvm::Mangler::getNameWithPrefix(), llvm::GetOrCreateFunctionComdat(), llvm::CallGraph::getOrInsertFunction(), getParent(), getParentPad(), llvm::getPGOFuncName(), llvm::PPCTargetLowering::getPICJumpTableRelocBaseExpr(), getPointerOperands(), llvm::MCJIT::getPointerToFunction(), llvm::NVPTXTargetLowering::getPrototype(), getReductionIntrinsic(), llvm::SCEVExpander::getRelatedExistingExpansion(), getRetComponentType(), llvm::TargetLoweringBase::getSafeStackPointerLocation(), getScalarIntrinsicDeclaration(), llvm::TargetLoweringObjectFile::getSectionForJumpTable(), getSignature(), getSqrtCall(), llvm::SelectionDAG::getSymbolFunctionGlobalAddress(), llvm::TargetLoweringObjectFile::getSymbolWithGlobalValueBase(), llvm::MipsTargetMachine::getTargetTransformInfo(), llvm::TargetMachine::getTargetTransformInfo(), llvm::HexagonTargetLowering::getTgtMemIntrinsic(), llvm::ARMTargetLowering::getTgtMemIntrinsic(), llvm::TargetMachine::getTLSModel(), getUnderlyingArgReg(), llvm::FunctionLoweringInfo::getValueFromVirtualReg(), getVarName(), llvm::GlobalVariable::GlobalVariable(), llvm::MipsCallLowering::MipsHandler::handle(), llvm::CallLowering::handleAssignments(), HandleByValArgument(), llvm::PPCSubtarget::hasLazyResolverStub(), hasProfileData(), hasReturnsTwiceAttr(), hasUndefContents(), llvm::inferLibFuncAttributes(), INITIALIZE_PASS(), llvm::MIRParserImpl::initializeConstantPool(), initSlots2BasicBlocks(), initSlots2Values(), llvm::InlineFunction(), insertCall(), insertIfNamed(), insertSinCosCall(), instrumentMaskedLoadOrStore(), llvm::isAllocaPromotable(), isAtomic(), isFuncOrArgAttr(), llvm::MipsTargetObjectFile::IsGlobalInSmallSection(), llvm::ARMSubtarget::isGVIndirectSymbol(), llvm::ARMSubtarget::isGVInGOT(), llvm::isImageReadOnly(), llvm::isImageReadWrite(), llvm::isImageWriteOnly(), llvm::isLegalToPromote(), llvm::TargetLowering::isOffsetFoldingLegal(), IsOperandAMemoryOperand(), llvm::SystemZSubtarget::isPC32DBLSymbol(), isPointerValueDeadOnEntryToFunction(), llvm::ARMTargetLowering::isReadOnly(), isReportingError(), llvm::isSampler(), IsSmallObject(), isTargetConstant(), isThunkProfitable(), isZeroLengthArray(), llvm::lintFunction(), LLVMGetNextFunction(), LLVMGetNextGlobal(), LLVMGetNextGlobalAlias(), LLVMGetPreviousFunction(), LLVMGetPreviousGlobal(), LLVMGetPreviousGlobalAlias(), llvm::X86CallLowering::lowerCall(), llvm::AArch64CallLowering::lowerCall(), llvm::MipsCallLowering::lowerCall(), llvm::CallLowering::lowerCall(), llvm::AsmPrinter::lowerConstant(), llvm::LowerDbgDeclare(), LowerEXTRACT_SUBVECTOR(), llvm::AMDGPUCallLowering::lowerFormalArguments(), llvm::AArch64CallLowering::lowerFormalArguments(), lowerGuardIntrinsic(), lowerObjCCall(), llvm::AMDGPUCallLowering::lowerReturn(), llvm::AArch64CallLowering::lowerReturn(), llvm::TargetLowering::LowerToTLSEmulatedModel(), LowerWRITE_REGISTER(), llvm::SparcTargetLowering::makeAddress(), llvm::ARMTargetLowering::makeDMB(), makeStatepointExplicitImpl(), llvm::orc::makeStub(), MarkBlocksLiveIn(), llvm::X86TargetLowering::markLibCallAttributes(), materialize(), maybePrintComdat(), mayLoopAccessLocation(), mayUseP9Setb(), memOpsHaveSameBasePtr(), mergeInlinedArrayAllocas(), llvm::orc::moveFunctionBody(), llvm::orc::moveGlobalVariableInitializer(), normalizePBQPSpillWeight(), OptimizeGlobalAddressOfMalloc(), llvm::cflaa::parentFunctionOfValue(), patchAndReplaceAllUsesWith(), performGlobalAddressCombine(), PerformHeapAllocSRoA(), postSplitCleanup(), PrepareCall(), prepareForSplit(), llvm::MIRPrinter::print(), llvm::Value::print(), llvm::MachineBasicBlock::print(), llvm::MachineInstr::print(), printMemOperand(), processInternalGlobal(), RedzoneSizeForScale(), relocationViaAlloca(), llvm::Intrinsic::remangleIntrinsicFunction(), llvm::GlobalIFunc::removeFromParent(), llvm::GlobalAlias::removeFromParent(), llvm::GlobalVariable::removeFromParent(), removeGlobalCtors(), replaceDevirtTrigger(), RetagMask(), llvm::returnTypeIsEligibleForTailCall(), llvm::ScalarizerPass::run(), llvm::NewGVNPass::run(), llvm::ControlHeightReductionPass::run(), llvm::IndVarSimplifyPass::run(), llvm::ThreadSanitizerPass::run(), llvm::EarlyCSEPass::run(), llvm::InstSimplifyPass::run(), llvm::SCCPPass::run(), llvm::MemorySanitizerPass::run(), llvm::AAEvaluator::run(), llvm::AMDGPUAA::run(), llvm::objcarc::ObjCARCAA::run(), llvm::PrintFunctionPass::run(), llvm::LoopUnrollPass::run(), llvm::LazyValueAnalysis::run(), llvm::BasicAA::run(), llvm::TargetLibraryAnalysis::run(), llvm::AAManager::run(), llvm::TargetIRAnalysis::run(), llvm::MCJIT::runFunction(), llvm::Float2IntPass::runImpl(), llvm::SLPVectorizerPass::runImpl(), llvm::JumpThreadingPass::runImpl(), llvm::NaryReassociatePass::runImpl(), llvm::ConstantHoistingPass::runImpl(), runImpl(), llvm::LegacyDivergenceAnalysis::runOnFunction(), llvm::LPPassManager::runOnFunction(), llvm::StackProtector::runOnFunction(), llvm::LazyValueInfoWrapperPass::runOnFunction(), llvm::BasicAAWrapperPass::runOnFunction(), llvm::FPPassManager::runOnFunction(), llvm::IRTranslator::runOnMachineFunction(), llvm::ScalarEvolution::ScalarEvolution(), selectELFSectionForGlobal(), llvm::XCoreTargetObjectFile::SelectSectionForGlobal(), llvm::TargetLoweringObjectFileMachO::SelectSectionForGlobal(), setFastFlags(), setUsedInitializer(), shouldApply(), shouldInstrumentBlock(), llvm::HexagonTargetObjectFile::shouldPutJumpTableInFunctionSection(), ShrinkDemandedConstant(), simplifyCFG(), splitGlobal(), SRAGlobal(), StackMallocSizeClass(), SwitchToLookupTable(), TryToShrinkGlobalToBoolean(), TypeSizeToSizeIndex(), unifyReturnBlockSet(), unswitchBestCondition(), llvm::UpgradeIntrinsicCall(), UpgradeIntrinsicFunction1(), UpgradePTESTIntrinsic(), UpgradeX86IntrinsicFunction(), UpgradeX86IntrinsicsWith8BitMask(), usedInOneFunc(), useFuncSeen(), UseTlsOffset(), llvm::verifyFunction(), VisitGlobalVariableForEmission(), llvm::SelectionDAGBuilder::visitSPDescriptorParent(), and llvm::InnerLoopVectorizer::widenInstruction().

getParent() [2/2]

const Module* llvm::GlobalValue::getParent ( ) const

inline

Definition at line 567 of file GlobalValue.h.

getSection()

StringRef GlobalValue::getSection

(

)

const

Definition at line 161 of file Globals.cpp.

References getBaseObject().

Referenced by callsShareTOCBase(), and llvm::XCoreTargetLowering::ReplaceNodeResults().

getThreadLocalMode()

ThreadLocalMode llvm::GlobalValue::getThreadLocalMode ( ) const

inline

Definition at line 255 of file GlobalValue.h.

Referenced by llvm::orc::cloneGlobalVariableDecl(), llvm::convertToDeclaration(), llvm::GlobalVariable::copyAttributesFrom(), forceRenaming(), getArrayElements(), getEncodedThreadLocalMode(), getSelectedTLSModel(), INITIALIZE_PASS(), instrumentMaskedLoadOrStore(), LowerToTLSExecModel(), maybePrintComdat(), OptimizeGlobalAddressOfMalloc(), PerformHeapAllocSRoA(), removeGlobalCtors(), SRAGlobal(), and TryToShrinkGlobalToBoolean().

getType()

PointerType* llvm::GlobalValue::getType ( ) const

inline

Global values are always pointers.

Definition at line 274 of file GlobalValue.h.

References llvm::Value::getType().

Referenced by llvm::MachineIRBuilder::buildGlobalValue(), llvm::Interpreter::callExternalFunction(), canCreateAliasFor(), canDemoteGlobalVar(), llvm::orc::cloneGlobalAliasDecl(), llvm::orc::cloneGlobalVariableDecl(), llvm::convertToDeclaration(), llvm::GlobalAlias::create(), llvm::createDeadArgHackingPass(), CreateLoadIns(), llvm::createMergeFunctionsPass(), llvm::NVPTXAsmPrinter::doFinalization(), llvm::AsmPrinter::emitGlobalGOTEquivs(), llvm::ExecutionEngine::emitGlobals(), llvm::AsmPrinter::EmitGlobalVariable(), findInitTrampoline(), findUser(), FindUses(), llvm::SanitizerStatReport::finish(), forceRenaming(), forEachUser(), FunctionNumber(), getAddressSpace(), getArrayElements(), getComparePred(), llvm::SelectionDAG::getGlobalAddress(), getImplicitScaleFactor(), getOpenCLAlignment(), llvm::Module::getOrInsertFunction(), llvm::Module::getOrInsertGlobal(), getTypeNamePrefix(), llvm::SelectionDAG::InferPtrAlignment(), INITIALIZE_PASS(), llvm::IsConstantOffsetFromGlobal(), llvm::AMDGPU::isGlobalSegment(), llvm::AMDGPU::isGroupSegment(), isKnownTypeIdMember(), isNoWrap(), llvm::AMDGPU::isReadOnlySegment(), isZeroLengthArray(), llvm::BlockAddress::lookup(), llvm::TargetLoweringObjectFileELF::lowerRelativeReference(), llvm::TargetLoweringObjectFileCOFF::lowerRelativeReference(), llvm::TargetLoweringObjectFileWasm::lowerRelativeReference(), maybePrintComdat(), maybeSetDSOLocal(), MergeAliasResults(), mergeConstants(), OptimizeGlobalAliases(), PerformHeapAllocSRoA(), processInternalGlobal(), removeGlobalCtors(), replaceAliasWithAliasee(), RetagMask(), selectJumpTableArmEncoding(), llvm::GlobalAlias::setAliasee(), llvm::HexagonTargetObjectFile::shouldPutJumpTableInFunctionSection(), splitGlobal(), SRAGlobal(), TryToShrinkGlobalToBoolean(), llvm::ObjectSizeOffsetVisitor::visitGlobalVariable(), and wrapConstantAsMetadata().

getUnnamedAddr()

UnnamedAddr llvm::GlobalValue::getUnnamedAddr ( ) const

inline

Definition at line 213 of file GlobalValue.h.

Referenced by copyAttributesFrom(), getEncodedUnnamedAddr(), getMinVisibility(), maybePrintComdat(), and processGlobal().

getValueType()

Type* llvm::GlobalValue::getValueType ( ) const

inline

Definition at line 276 of file GlobalValue.h.

Referenced by llvm::AMDGPUMachineFunction::allocateLDSGlobal(), llvm::orc::cloneFunctionDecl(), llvm::orc::cloneGlobalAliasDecl(), llvm::orc::cloneGlobalVariableDecl(), llvm::convertToDeclaration(), llvm::IRBuilder< TargetFolder >::CreateGlobalStringPtr(), despeculateCountZeros(), llvm::NVPTXAsmPrinter::doFinalization(), llvm::ExecutionEngine::EmitGlobalVariable(), llvm::emitLinkerFlagsForGlobalCOFF(), findInitTrampoline(), forceRenaming(), forEachUser(), llvm::StackSafetyInfo::FunctionInfo::FunctionInfo(), getArrayElements(), GetGlobalTypeString(), getMinVisibility(), llvm::DataLayout::getPreferredAlignment(), getTypeNamePrefix(), INITIALIZE_PASS(), InsertSafepointPoll(), instrumentMaskedLoadOrStore(), llvm::MipsTargetObjectFile::IsGlobalInSmallSection(), isKnownTypeIdMember(), isLeakCheckerRoot(), IsSmallObject(), isWorthFoldingADDlow(), isZeroLengthArray(), llvm::WebAssemblyMCInstLower::Lower(), llvm::TargetLoweringObjectFileELF::lowerRelativeReference(), llvm::TargetLoweringObjectFileWasm::lowerRelativeReference(), maybePrintComdat(), maybeSetDSOLocal(), OptimizeGlobalAddressOfMalloc(), performGlobalAddressCombine(), processInternalGlobal(), llvm::XCoreTargetLowering::ReplaceNodeResults(), selectJumpTableArmEncoding(), llvm::XCoreTargetObjectFile::SelectSectionForGlobal(), llvm::GlobalVariable::setInitializer(), shouldKeepInEntry(), SRAGlobal(), TryToShrinkGlobalToBoolean(), and llvm::ExecutionEngine::~ExecutionEngine().

getVisibility()

VisibilityTypes llvm::GlobalValue::getVisibility ( ) const

inline

Definition at line 233 of file GlobalValue.h.

References Visibility.

Referenced by canCreateAliasFor(), copyAttributesFrom(), llvm::AsmPrinter::EmitDebugValue(), llvm::AsmPrinter::emitGlobalGOTEquivs(), llvm::AsmPrinter::EmitGlobalVariable(), getArrayElements(), getEncodedVisibility(), getMinVisibility(), instrumentMaskedLoadOrStore(), isKnownTypeIdMember(), maybePrintComdat(), needsRuntimeRegistrationOfSectionRange(), OptimizeGlobalAliases(), llvm::WholeProgramDevirtPass::run(), selectJumpTableArmEncoding(), and shouldFixMainFunction().

getWeakLinkage()

static LinkageTypes llvm::GlobalValue::getWeakLinkage ( bool  ODR )

inlinestatic

Definition at line 287 of file GlobalValue.h.

Referenced by thinLTOResolvePrevailingGUID().

hasAppendingLinkage()

bool llvm::GlobalValue::hasAppendingLinkage ( ) const

inline

Definition at line 433 of file GlobalValue.h.

Referenced by computeVariableSummary(), llvm::NVPTXAsmPrinter::doFinalization(), llvm::AsmPrinter::EmitSpecialLLVMGlobal(), forEachUser(), getArrayElements(), getMinVisibility(), and getTypeNamePrefix().

hasAtLeastLocalUnnamedAddr()

bool llvm::GlobalValue::hasAtLeastLocalUnnamedAddr ( ) const

inline

Returns true if this value's address is not significant in this module.

This attribute is intended to be used only by the code generator and LTO to allow the linker to decide whether the global needs to be in the symbol table. It should probably not be used in optimizations, as the value may have uses outside the module; use hasGlobalUnnamedAddr() instead.

Definition at line 209 of file GlobalValue.h.

References llvm::None.

Referenced by canBeOmittedFromSymbolTable(), and llvm::AsmPrinter::doFinalization().

hasAvailableExternallyLinkage()

bool llvm::GlobalValue::hasAvailableExternallyLinkage ( ) const

inline

Definition at line 423 of file GlobalValue.h.

Referenced by computeVariableSummary(), llvm::createMergeFunctionsPass(), llvm::NVPTXAsmPrinter::doFinalization(), llvm::AsmPrinter::EmitSpecialLLVMGlobal(), forEachUser(), llvm::TargetLoweringObjectFile::getKindForGlobal(), getMinVisibility(), llvm::MCJIT::getPointerToFunction(), INITIALIZE_PASS(), llvm::LanaiTargetObjectFile::isGlobalInSmallSection(), llvm::MipsTargetObjectFile::IsGlobalInSmallSection(), and shouldRecordFunctionAddr().

hasComdat()

bool llvm::GlobalValue::hasComdat ( ) const

inline

Definition at line 226 of file GlobalValue.h.

Referenced by callsShareTOCBase(), forEachUser(), and llvm::LTOModule::makeBuffer().

hasCommonLinkage()

bool llvm::GlobalValue::hasCommonLinkage ( ) const

inline

Definition at line 440 of file GlobalValue.h.

Referenced by llvm::X86Subtarget::classifyLocalReference(), llvm::NVPTXAsmPrinter::doFinalization(), llvm::AsmPrinter::EmitGlobalVariable(), forEachUser(), llvm::JITSymbolFlags::fromGlobalValue(), llvm::HexagonTargetObjectFile::getExplicitSectionGlobal(), getMinVisibility(), getSuccPad(), llvm::PPCSubtarget::hasLazyResolverStub(), llvm::MipsTargetObjectFile::IsGlobalInSmallSection(), llvm::ARMSubtarget::isGVIndirectSymbol(), llvm::LTOModule::makeBuffer(), and llvm::HexagonTargetObjectFile::SelectSectionForGlobal().

hasDefaultVisibility()

bool llvm::GlobalValue::hasDefaultVisibility ( ) const

inline

Definition at line 234 of file GlobalValue.h.

References Visibility.

Referenced by forEachUser(), getMOVL(), inferDSOLocal(), PrintDSOLocation(), and llvm::TargetMachine::shouldAssumeDSOLocal().

hasDLLExportStorageClass()

bool llvm::GlobalValue::hasDLLExportStorageClass ( ) const

inline

Definition at line 265 of file GlobalValue.h.

Referenced by computeVariableSummary(), and llvm::emitLinkerFlagsForGlobalCOFF().

hasDLLImportStorageClass()

bool llvm::GlobalValue::hasDLLImportStorageClass ( ) const

inline

Definition at line 262 of file GlobalValue.h.

Referenced by llvm::ARMTargetLowering::CCAssignFnForReturn(), llvm::X86Subtarget::classifyGlobalFunctionReference(), llvm::AArch64Subtarget::ClassifyGlobalReference(), llvm::X86Subtarget::classifyGlobalReference(), llvm::AsmPrinter::doFinalization(), llvm::FunctionImportGlobalProcessing::doImportAsDefinition(), forEachUser(), getMinVisibility(), getOffsetFromIndices(), llvm::DwarfCompileUnit::getOrCreateGlobalVariableDIE(), llvm::ARMTargetLowering::isReadOnly(), and llvm::TargetMachine::shouldAssumeDSOLocal().

hasExactDefinition()

bool llvm::GlobalValue::hasExactDefinition ( ) const

inline

Return true if this global has an exact defintion.

Definition at line 407 of file GlobalValue.h.

Referenced by llvm::canTrackReturnsInterprocedurally(), llvm::createDeadArgHackingPass(), instrumentMaskedLoadOrStore(), and runImpl().

hasExternalLinkage()

bool llvm::GlobalValue::hasExternalLinkage ( ) const

inline

Definition at line 422 of file GlobalValue.h.

Referenced by canCreateAliasFor(), llvm::NVPTXAsmPrinter::doFinalization(), llvm::AsmPrinter::emitGlobalGOTEquivs(), llvm::ExecutionEngine::emitGlobals(), llvm::RecordStreamer::flushSymverDirectives(), forEachUser(), llvm::HexagonTargetObjectFile::getExplicitSectionGlobal(), getMinVisibility(), isCalleeLoad(), llvm::MipsTargetObjectFile::IsGlobalInSmallSection(), isSortedByValueNo(), llvm::TargetLoweringObjectFileCOFF::lowerRelativeReference(), maybePrintComdat(), llvm::HexagonTargetObjectFile::SelectSectionForGlobal(), and llvm::TargetLoweringObjectFileMachO::SelectSectionForGlobal().

hasExternalWeakLinkage()

bool llvm::GlobalValue::hasExternalWeakLinkage ( ) const

inline

Definition at line 437 of file GlobalValue.h.

Referenced by llvm::AArch64Subtarget::ClassifyGlobalReference(), llvm::ExecutionEngine::emitGlobals(), forceRenaming(), forEachUser(), getMinVisibility(), llvm::MCJIT::getPointerToFunction(), inferDSOLocal(), llvm::LTOModule::makeBuffer(), MatchingStackOffset(), mayTailCallThisCC(), PrintDSOLocation(), llvm::TargetMachine::shouldAssumeDSOLocal(), and unpackF64OnRV32DSoftABI().

hasGlobalUnnamedAddr()

bool llvm::GlobalValue::hasGlobalUnnamedAddr ( ) const

inline

Definition at line 200 of file GlobalValue.h.

Referenced by canBeOmittedFromSymbolTable(), canCreateAliasFor(), getArrayElements(), IsBetterCanonical(), isFuncOrArgAttr(), isGOTEquivalentCandidate(), llvm::TargetLoweringObjectFileELF::lowerRelativeReference(), llvm::TargetLoweringObjectFileWasm::lowerRelativeReference(), makeMergeable(), and processGlobal().

hasHiddenVisibility()

bool llvm::GlobalValue::hasHiddenVisibility ( ) const

inline

Definition at line 235 of file GlobalValue.h.

References Visibility.

Referenced by llvm::JITSymbolFlags::fromGlobalValue(), and llvm::LTOModule::makeBuffer().

hasInternalLinkage()

bool llvm::GlobalValue::hasInternalLinkage ( ) const

inline

Definition at line 434 of file GlobalValue.h.

Referenced by addNoRecurseAttrsTopDown(), canDemoteGlobalVar(), CC_MipsO32_FP64(), llvm::AArch64Subtarget::classifyGlobalFunctionReference(), deduceFunctionAttributeInRPO(), llvm::NVPTXAsmPrinter::doFinalization(), llvm::HexagonTargetObjectFile::getExplicitSectionGlobal(), getModifierVariantKind(), GetSymbolFromOperand(), printSymbolOperand(), llvm::ARMAsmPrinter::runOnMachineFunction(), and llvm::HexagonTargetObjectFile::SelectSectionForGlobal().

hasLinkOnceLinkage()

bool llvm::GlobalValue::hasLinkOnceLinkage ( ) const

inline

Definition at line 426 of file GlobalValue.h.

Referenced by canCreateAliasFor(), llvm::NVPTXAsmPrinter::doFinalization(), llvm::AsmPrinter::emitGlobalGOTEquivs(), llvm::JITSymbolFlags::fromGlobalValue(), getMinVisibility(), llvm::LTOModule::makeBuffer(), makeVisible(), and shouldRecordFunctionAddr().

hasLinkOnceODRLinkage()

bool llvm::GlobalValue::hasLinkOnceODRLinkage ( ) const

inline

Definition at line 427 of file GlobalValue.h.

Referenced by canBeOmittedFromSymbolTable(), llvm::AArch64InstrInfo::isFunctionSafeToOutlineFrom(), llvm::X86InstrInfo::isFunctionSafeToOutlineFrom(), and shouldBeDeferred().

hasLocalLinkage()

bool llvm::GlobalValue::hasLocalLinkage ( ) const

inline

Definition at line 436 of file GlobalValue.h.

Referenced by asmClobbersCTR(), canCreateAliasFor(), llvm::canTrackArgumentsInterprocedurally(), llvm::canTrackGlobalVariableInterprocedurally(), CC_MipsO32_FP64(), llvm::createDeadArgHackingPass(), llvm::createX86IndirectBranchTrackingPass(), deleteIfDead(), llvm::AsmPrinter::doFinalization(), llvm::FunctionImportGlobalProcessing::doImportAsDefinition(), llvm::AsmPrinter::emitGlobalGOTEquivs(), externalize(), llvm::RecordStreamer::flushSymverDirectives(), forceRenaming(), forEachUser(), llvm::JITSymbolFlags::fromGlobalValue(), getArrayElements(), llvm::TargetLoweringObjectFileMachO::getCFIPersonalitySymbol(), llvm::HexagonTargetObjectFile::getExplicitSectionGlobal(), llvm::getIntrinsicForCallSite(), getMinVisibility(), llvm::GlobalsAAResult::getModRefBehavior(), llvm::GlobalsAAResult::getModRefInfo(), getMOVL(), llvm::GetOrCreateFunctionComdat(), getRetComponentType(), llvm::SparcELFTargetObjectFile::getTTypeGlobalReference(), llvm::TargetLoweringObjectFileELF::getTTypeGlobalReference(), llvm::TargetLoweringObjectFileMachO::getTTypeGlobalReference(), handleNonPrevailingComdat(), hasOnlyColdCalls(), hasUsesToReplace(), inferDSOLocal(), INITIALIZE_PASS(), instrumentMaskedLoadOrStore(), IsBetterCanonical(), isDirectCall(), isFuncOrderCorrect(), llvm::MipsTargetObjectFile::IsGlobalInSmallSection(), llvm::TargetTransformInfoImplBase::isLoweredToCall(), isNonRenamableLocal(), llvm::TargetFrameLowering::isSafeForNoCSROpt(), llvm::LTOModule::makeBuffer(), makeVisible(), llvm::maybeMarkSanitizerLibraryCallNoBuiltin(), mayHaveOtherReferences(), mergeConstants(), OptimizeFunctions(), OptimizeGlobalAliases(), OptimizeGlobalVars(), llvm::LinkDiagnosticInfo::print(), PrintDSOLocation(), processGlobal(), promoteArguments(), llvm::LegacyInlinerBase::removeDeadFunctions(), replace(), llvm::XCoreTargetLowering::ReplaceNodeResults(), llvm::InlinerPass::run(), llvm::WholeProgramDevirtPass::run(), llvm::X86AsmPrinter::runOnMachineFunction(), llvm::ExecutionEngine::runStaticConstructorsDestructors(), llvm::FastISel::selectInstruction(), selectJumpTableArmEncoding(), llvm::HexagonTargetObjectFile::SelectSectionForGlobal(), llvm::XCoreTargetObjectFile::SelectSectionForGlobal(), shouldBeDeferred(), shouldRecordFunctionAddr(), splitGlobal(), and SRAGlobal().

hasPrivateLinkage()

bool llvm::GlobalValue::hasPrivateLinkage ( ) const

inline

Definition at line 435 of file GlobalValue.h.

Referenced by llvm::NVPTXAsmPrinter::doFinalization(), llvm::AsmPrinter::emitGlobalGOTEquivs(), llvm::HexagonTargetObjectFile::getExplicitSectionGlobal(), llvm::TargetLoweringObjectFileCOFF::getExplicitSectionGlobal(), llvm::Mangler::getNameWithPrefix(), llvm::TargetLoweringObjectFileCOFF::getNameWithPrefix(), llvm::TargetMachine::getNameWithPrefix(), llvm::TargetLoweringObjectFileCOFF::getSectionForJumpTable(), instrumentMaskedLoadOrStore(), isLeakCheckerRoot(), llvm::HexagonTargetObjectFile::SelectSectionForGlobal(), llvm::TargetLoweringObjectFileMachO::SelectSectionForGlobal(), and llvm::TargetLoweringObjectFileCOFF::SelectSectionForGlobal().

hasProtectedVisibility()

bool llvm::GlobalValue::hasProtectedVisibility ( ) const

inline

Definition at line 236 of file GlobalValue.h.

References Visibility.

Referenced by llvm::LTOModule::makeBuffer().

hasSection()

bool llvm::GlobalValue::hasSection ( ) const

inline

Definition at line 270 of file GlobalValue.h.

References llvm::object::getSection().

Referenced by canIncreaseAlignment(), llvm::FunctionImportGlobalProcessing::doImportAsDefinition(), getComdat(), getGVAlignmentLog2(), isNonRenamableLocal(), llvm::TargetLoweringObjectFileCOFF::lowerRelativeReference(), llvm::LTOModule::makeBuffer(), llvm::XCoreTargetLowering::ReplaceNodeResults(), and llvm::GlobalObject::setSection().

hasValidDeclarationLinkage()

bool llvm::GlobalValue::hasValidDeclarationLinkage ( ) const

inline

Definition at line 441 of file GlobalValue.h.

Referenced by forEachUser().

hasWeakAnyLinkage()

bool llvm::GlobalValue::hasWeakAnyLinkage ( ) const

inline

Definition at line 431 of file GlobalValue.h.

hasWeakLinkage()

bool llvm::GlobalValue::hasWeakLinkage ( ) const

inline

Definition at line 430 of file GlobalValue.h.

Referenced by canCreateAliasFor(), llvm::NVPTXAsmPrinter::doFinalization(), llvm::AsmPrinter::emitGlobalGOTEquivs(), llvm::JITSymbolFlags::fromGlobalValue(), getMinVisibility(), and llvm::LTOModule::makeBuffer().

hasWeakODRLinkage()

bool llvm::GlobalValue::hasWeakODRLinkage ( ) const

inline

Definition at line 432 of file GlobalValue.h.

isAbsoluteSymbolRef()

bool GlobalValue::isAbsoluteSymbolRef

(

)

const

Returns whether this is a reference to an absolute symbol.

Definition at line 269 of file Globals.cpp.

References llvm::dyn_cast(), llvm::GlobalObject::getMetadata(), and llvm::LLVMContext::MD_absolute_symbol.

Referenced by LowerEXTRACT_SUBVECTOR().

isAppendingLinkage()

static bool llvm::GlobalValue::isAppendingLinkage ( LinkageTypes  Linkage )

inlinestatic

Definition at line 312 of file GlobalValue.h.

Referenced by thinLTOResolvePrevailingGUID().

isAvailableExternallyLinkage()

static bool llvm::GlobalValue::isAvailableExternallyLinkage ( LinkageTypes  Linkage )

inlinestatic

Definition at line 294 of file GlobalValue.h.

Referenced by llvm::thinLTOResolvePrevailingInModule().

isCommonLinkage()

static bool llvm::GlobalValue::isCommonLinkage ( LinkageTypes  Linkage )

inlinestatic

Definition at line 327 of file GlobalValue.h.

isDeclaration()

bool GlobalValue::isDeclaration

(

)

const

Return true if the primary definition of this global value is outside of the current translation unit.

Definition at line 206 of file Globals.cpp.

References assert(), and F().

Referenced by addNoRecurseAttrs(), addNoRecurseAttrsTopDown(), assureFPCallStub(), llvm::buildModuleSummaryIndex(), llvm::Interpreter::callFunction(), callsiteIsHot(), copyFeaturesToFunction(), llvm::createAlwaysInlinerLegacyPass(), llvm::createAMDGPUFunctionInliningPass(), llvm::createDeadArgHackingPass(), llvm::createMergeFunctionsPass(), cxxDtorIsEmpty(), deduceFunctionAttributeInRPO(), deleteIfDead(), doCallSiteSplitting(), llvm::NVPTXAsmPrinter::doFinalization(), llvm::FunctionImportGlobalProcessing::doImportAsDefinition(), llvm::AsmPrinter::EmitGlobalVariable(), llvm::emitLinkerFlagsForGlobalCOFF(), emitSignedInt64(), enableCallSafepoints(), llvm::Evaluator::EvaluateBlock(), llvm::ExecutionEngine::FindFunctionNamed(), llvm::ExecutionEngine::FindGlobalVariableNamed(), llvm::AnalysisResolver::findImplPass(), llvm::MCJIT::findModuleForSymbol(), forceRenaming(), forEachUser(), FunctionNumber(), getArrayElements(), llvm::AMDGPULibFunc::getFunction(), llvm::GCModuleInfo::getFunctionInfo(), llvm::TargetLoweringObjectFile::getKindForGlobal(), getMinVisibility(), llvm::AMDGPULibFunc::getOrInsertFunction(), getParentPad(), llvm::MCJIT::getPointerToFunction(), getSignature(), hasAnyNonFlatUseOfReg(), llvm::GlobalVariable::hasInitializer(), hasProfileData(), INITIALIZE_PASS(), llvm::InlineFunction(), invokeFunctionPass(), llvm::LanaiTargetObjectFile::isGlobalInSmallSection(), llvm::MipsTargetObjectFile::IsGlobalInSmallSection(), isReportingError(), isWrapperOnlyCall(), llvm::lintFunction(), llvm::AMDGPUArgumentUsageInfo::lookupFuncArgInfo(), llvm::orc::makeStub(), maybePrintComdat(), llvm::orc::moveFunctionBody(), OptimizeFunctions(), OptimizeGlobalAliases(), OptimizeGlobalVars(), predictUseListOrder(), llvm::LegacyInlinerBase::removeDeadFunctions(), llvm::SyntheticCountsPropagation::run(), llvm::RewriteStatepointsForGC::runOnFunction(), llvm::FPPassManager::runOnFunction(), llvm::MCJIT::runStaticConstructorsDestructors(), llvm::ExecutionEngine::runStaticConstructorsDestructors(), llvm::ImportedFunctionsInliningStatistics::setModuleInfo(), shouldFixMainFunction(), stripDeadPrototypes(), useFuncSeen(), llvm::verifyModule(), llvm::Interpreter::visitCallSite(), llvm::LazyCallGraph::visitReferences(), writeIdentificationBlock(), and writeTypeIdSummaryRecord().

isDeclarationForLinker()

bool llvm::GlobalValue::isDeclarationForLinker ( ) const

inline

Definition at line 524 of file GlobalValue.h.

Referenced by llvm::X86Subtarget::classifyLocalReference(), llvm::AsmPrinter::EmitSpecialLLVMGlobal(), llvm::RecordStreamer::flushSymverDirectives(), forEachUser(), getArrayElements(), getMinVisibility(), llvm::PPCSubtarget::hasLazyResolverStub(), llvm::ARMSubtarget::isGVIndirectSymbol(), isKnownTypeIdMember(), and llvm::TargetMachine::shouldAssumeDSOLocal().

isDefinitionExact()

bool llvm::GlobalValue::isDefinitionExact ( ) const

inline

Return true if the currently visible definition of this global (if any) is exactly the definition we will see at runtime.

Non-exact linkage types inhibits most non-inlining IPO, since a differently optimized variant of the same function can have different observable or undefined behavior than in the variant currently visible. For instance, we could have started with

void foo(int *v) { int t = 5 / v[0]; (void) t; }

and "refined" it to

void foo(int *v) { }

However, we cannot infer readnone for foo, since that would justify DSE'ing a store to v[0] across a call to foo, which can cause undefined behavior if the linker replaces the actual call destination with the unoptimized foo.

Inlining is okay across non-exact linkage types as long as they're not interposable (see isInterposable), since in such cases the currently visible variant is a correct implementation of the original source function; it just isn't the only correct implementation.

Definition at line 402 of file GlobalValue.h.

Referenced by PropagateConstantReturn().

isDiscardableIfUnused() [1/2]

static bool llvm::GlobalValue::isDiscardableIfUnused ( LinkageTypes  Linkage )

inlinestatic

Whether the definition of this global may be discarded if it is not used in its compilation unit.

Definition at line 361 of file GlobalValue.h.

Referenced by canCreateAliasFor(), deleteIfDead(), isGOTEquivalentCandidate(), makeVisible(), and optimizeGlobalsInModule().

isDiscardableIfUnused() [2/2]

bool llvm::GlobalValue::isDiscardableIfUnused ( ) const

inline

Definition at line 453 of file GlobalValue.h.

Referenced by llvm::canRenameComdatFunc().

isDSOLocal()

bool llvm::GlobalValue::isDSOLocal ( ) const

inline

Definition at line 280 of file GlobalValue.h.

Referenced by llvm::buildModuleSummaryIndex(), canIncreaseAlignment(), computeAliasSummary(), computeVariableSummary(), copyAttributesFrom(), forEachUser(), isDirectCall(), llvm::StackSafetyInfo::FunctionInfo::IsDSOLocal(), isKnownTypeIdMember(), OptimizeGlobalAliases(), PrintDSOLocation(), and llvm::TargetMachine::shouldAssumeDSOLocal().

isExternalLinkage()

static bool llvm::GlobalValue::isExternalLinkage ( LinkageTypes  Linkage )

inlinestatic

Definition at line 291 of file GlobalValue.h.

Referenced by llvm::GlobalAlias::isValidLinkage().

isExternalWeakLinkage()

static bool llvm::GlobalValue::isExternalWeakLinkage ( LinkageTypes  Linkage )

inlinestatic

Definition at line 324 of file GlobalValue.h.

isInternalLinkage()

static bool llvm::GlobalValue::isInternalLinkage ( LinkageTypes  Linkage )

inlinestatic

Definition at line 315 of file GlobalValue.h.

Referenced by CompareValueComplexity().

isInterposable()

bool llvm::GlobalValue::isInterposable ( ) const

inline

Return true if this global's definition can be substituted with an arbitrary definition at link time.

We cannot do any IPO or inlinining across interposable call edges, since the callee can be replaced with something arbitrary at link time.

Definition at line 420 of file GlobalValue.h.

Referenced by canCreateAliasFor(), computeVariableSummary(), llvm::Evaluator::EvaluateBlock(), llvm::getInlineCost(), llvm::GlobalVariable::hasDefinitiveInitializer(), instrumentMaskedLoadOrStore(), isFuncOrderCorrect(), llvm::StackSafetyInfo::FunctionInfo::IsInterposable(), OptimizeGlobalAliases(), shouldInstrumentBlock(), and llvm::ObjectSizeOffsetVisitor::visitGlobalAlias().

isInterposableLinkage()

static bool llvm::GlobalValue::isInterposableLinkage ( LinkageTypes  Linkage )

inlinestatic

Whether the definition of this global may be replaced by something non-equivalent at link time.

For example, if a function has weak linkage then the code defining it may be replaced by different code.

Definition at line 337 of file GlobalValue.h.

References llvm_unreachable.

Referenced by llvm::canImportGlobalVar(), llvm::computeDeadSymbols(), selectCallee(), and llvm::thinLTOResolvePrevailingInModule().

isLinkOnceLinkage()

static bool llvm::GlobalValue::isLinkOnceLinkage ( LinkageTypes  Linkage )

inlinestatic

Definition at line 300 of file GlobalValue.h.

Referenced by llvm::GlobalAlias::isValidLinkage(), and thinLTOResolvePrevailingGUID().

isLinkOnceODRLinkage()

static bool llvm::GlobalValue::isLinkOnceODRLinkage ( LinkageTypes  Linkage )

inlinestatic

Definition at line 297 of file GlobalValue.h.

Referenced by thinLTOResolvePrevailingGUID().

isLocalLinkage()

static bool llvm::GlobalValue::isLocalLinkage ( LinkageTypes  Linkage )

inlinestatic

Definition at line 321 of file GlobalValue.h.

Referenced by computeImportForReferencedGlobals(), llvm::createPGOFuncNameVar(), llvm::FunctionImportGlobalProcessing::doImportAsDefinition(), doImportingForModule(), getGlobalIdentifier(), llvm::getPGOFuncNameVarName(), llvm::GlobalAlias::isValidLinkage(), isValidVisibilityForLinkage(), resolveFwdRef(), selectCallee(), thinLTOInternalizeAndPromoteGUID(), llvm::thinLTOInternalizeModule(), thinLTOResolvePrevailingGUID(), and llvm::thinLTOResolvePrevailingInModule().

isMaterializable()

bool GlobalValue::isMaterializable

(

)

const

If this function's Module is being lazily streamed in functions from disk or some other source, this method can be used to check to see if the function has been read in yet or not.

Definition at line 45 of file Globals.cpp.

References F().

Referenced by maybePrintComdat().

isPrivateLinkage()

static bool llvm::GlobalValue::isPrivateLinkage ( LinkageTypes  Linkage )

inlinestatic

Definition at line 318 of file GlobalValue.h.

Referenced by CompareValueComplexity().

isStrongDefinitionForLinker()

bool llvm::GlobalValue::isStrongDefinitionForLinker ( ) const

inline

Returns true if this global's definition will be the one chosen by the linker.

NB! Ideally this should not be used at the IR level at all. If you're interested in optimization constraints implied by the linker's ability to choose an implementation, prefer using hasExactDefinition.

Definition at line 537 of file GlobalValue.h.

Referenced by callsShareTOCBase(), canIncreaseAlignment(), llvm::ARMTargetLowering::CCAssignFnForReturn(), llvm::GlobalVariable::hasUniqueInitializer(), and llvm::TargetMachine::shouldAssumeDSOLocal().

isThreadLocal()

bool llvm::GlobalValue::isThreadLocal ( ) const

inline

If the value is "Thread Local", its value isn't shared by the threads.

Definition at line 247 of file GlobalValue.h.

Referenced by CC_MipsO32_FP64(), llvm::AsmPrinter::doFinalization(), llvm::AsmPrinter::EmitGlobalVariable(), llvm::ExecutionEngine::EmitGlobalVariable(), getComparePred(), llvm::SelectionDAG::getGlobalAddress(), getImplicitScaleFactor(), getModifierVariantKind(), llvm::DwarfCompileUnit::getOrCreateGlobalVariableDIE(), instrumentMaskedLoadOrStore(), isKnownTypeIdMember(), isZeroLengthArray(), llvm::TargetLoweringObjectFileELF::lowerRelativeReference(), llvm::TargetLoweringObjectFileCOFF::lowerRelativeReference(), llvm::TargetLoweringObjectFileWasm::lowerRelativeReference(), and llvm::TargetMachine::shouldAssumeDSOLocal().

isValidDeclarationLinkage()

static bool llvm::GlobalValue::isValidDeclarationLinkage ( LinkageTypes  Linkage )

inlinestatic

Definition at line 330 of file GlobalValue.h.

Referenced by maybeSetDSOLocal().

isWeakAnyLinkage()

static bool llvm::GlobalValue::isWeakAnyLinkage ( LinkageTypes  Linkage )

inlinestatic

Definition at line 303 of file GlobalValue.h.

isWeakForLinker() [1/2]

static bool llvm::GlobalValue::isWeakForLinker ( LinkageTypes  Linkage )

inlinestatic

Whether the definition of this global may be replaced at link time.

NB: Using this method outside of the code generators is almost always a mistake: when working at the IR level use isInterposable instead as it knows about ODR semantics.

Definition at line 370 of file GlobalValue.h.

Referenced by llvm::RecordStreamer::flushSymverDirectives(), getMinVisibility(), llvm::GetOrCreateFunctionComdat(), isKnownTypeIdMember(), mergeConstants(), selectJumpTableArmEncoding(), llvm::TargetLoweringObjectFileMachO::SelectSectionForGlobal(), and llvm::TargetLoweringObjectFile::shouldPutJumpTableInFunctionSection().

isWeakForLinker() [2/2]

bool llvm::GlobalValue::isWeakForLinker ( ) const

inline

Definition at line 457 of file GlobalValue.h.

References isWeakForLinker().

Referenced by isWeakForLinker().

isWeakLinkage()

static bool llvm::GlobalValue::isWeakLinkage ( LinkageTypes  Linkage )

inlinestatic

Definition at line 309 of file GlobalValue.h.

Referenced by llvm::GlobalAlias::isValidLinkage().

isWeakODRLinkage()

static bool llvm::GlobalValue::isWeakODRLinkage ( LinkageTypes  Linkage )

inlinestatic

Definition at line 306 of file GlobalValue.h.

materialize()

Error GlobalValue::materialize

(

)

Make sure this GlobalValue is fully read.

Definition at line 50 of file Globals.cpp.

References From, getParent(), llvm_unreachable, and llvm::Module::materialize().

Referenced by llvm::legacy::FunctionPassManager::run().

removeFromParent()

void GlobalValue::removeFromParent

(

)

This method unlinks 'this' from the containing module, but does not delete it.

Definition at line 73 of file Globals.cpp.

References llvm::Value::getValueID(), and llvm_unreachable.

setDLLStorageClass()

void llvm::GlobalValue::setDLLStorageClass ( DLLStorageClassTypes  C )

inline

Definition at line 268 of file GlobalValue.h.

References C.

Referenced by copyAttributesFrom(), llvm::FunctionImportGlobalProcessing::doImportAsDefinition(), FunctionNumber(), maybeSetDSOLocal(), OptimizeGlobalAliases(), and upgradeDLLImportExportLinkage().

setDSOLocal()

void llvm::GlobalValue::setDSOLocal ( bool  Local )

inline

Definition at line 278 of file GlobalValue.h.

Referenced by copyAttributesFrom(), llvm::FunctionImportGlobalProcessing::doImportAsDefinition(), inferDSOLocal(), maybeSetDSOLocal(), and OptimizeGlobalAliases().

setGlobalValueSubClassData()

void llvm::GlobalValue::setGlobalValueSubClassData ( unsigned  V )

inlineprotected

Definition at line 164 of file GlobalValue.h.

References assert().

Referenced by llvm::GlobalObject::classof(), llvm::GlobalObject::GlobalObject(), llvm::GlobalObject::setAlignment(), and llvm::GlobalObject::setGlobalObjectSubClassData().

setLinkage()

void llvm::GlobalValue::setLinkage ( LinkageTypes  LT )

inline

Definition at line 445 of file GlobalValue.h.

References llvm::AArch64CC::LT, and Visibility.

Referenced by canCreateAliasFor(), llvm::CloneModule(), llvm::createArgumentPromotionPass(), llvm::createBlockExtractorPass(), llvm::FunctionImportGlobalProcessing::doImportAsDefinition(), externalize(), forceRenaming(), FunctionNumber(), getArrayElements(), getOrInsertValueProfilingCall(), handleNonPrevailingComdat(), INITIALIZE_PASS(), instrumentMaskedLoadOrStore(), isKnownTypeIdMember(), LLVMSetLinkage(), makeVisible(), maybeSetDSOLocal(), mayLoopAccessLocation(), needsRuntimeRegistrationOfSectionRange(), OptimizeFunctions(), OptimizeGlobalAliases(), OptimizeGlobalVars(), replaceAliasWithAliasee(), llvm::WholeProgramDevirtPass::run(), shouldFixMainFunction(), and shouldKeepInEntry().

setParent()

void llvm::GlobalValue::setParent ( Module *  parent )

inlineprotected

Definition at line 172 of file GlobalValue.h.

setThreadLocal()

void llvm::GlobalValue::setThreadLocal ( bool  Val )

inline

Definition at line 248 of file GlobalValue.h.

setThreadLocalMode()

void llvm::GlobalValue::setThreadLocalMode ( ThreadLocalMode  Val )

inline

Definition at line 251 of file GlobalValue.h.

References assert().

Referenced by llvm::GlobalVariable::copyAttributesFrom(), llvm::GlobalVariable::GlobalVariable(), LLVMSetThreadLocalMode(), and maybeSetDSOLocal().

setUnnamedAddr()

void llvm::GlobalValue::setUnnamedAddr ( UnnamedAddr  Val )

inline

Definition at line 216 of file GlobalValue.h.

Referenced by copyAttributesFrom(), llvm::IRBuilderBase::CreateGlobalString(), createPrivateGlobalForSourceLoc(), llvm::createPrivateGlobalForString(), FunctionNumber(), getMinVisibility(), INITIALIZE_PASS(), instrumentMaskedLoadOrStore(), isCallPromotable(), LLVMSetUnnamedAddress(), makeMergeable(), maybeSetDSOLocal(), processGlobal(), and shouldKeepInEntry().

setVisibility()

void llvm::GlobalValue::setVisibility ( VisibilityTypes  V )

inline

Definition at line 239 of file GlobalValue.h.

References assert(), and Visibility.

Referenced by copyAttributesFrom(), llvm::createPGOFuncNameVar(), llvm::createX86RetpolineThunksPass(), llvm::FunctionImportGlobalProcessing::doImportAsDefinition(), externalize(), FunctionNumber(), getMinVisibility(), INITIALIZE_PASS(), instrumentMaskedLoadOrStore(), isKnownTypeIdMember(), makeVisible(), maybeSetDSOLocal(), needsRuntimeRegistrationOfSectionRange(), OptimizeGlobalAliases(), llvm::WholeProgramDevirtPass::run(), selectJumpTableArmEncoding(), and shouldFixMainFunction().

Friends And Related Function Documentation

Constant

friend class Constant

friend

Definition at line 117 of file GlobalValue.h.

Member Data Documentation

DllStorageClass

unsigned llvm::GlobalValue::DllStorageClass

protected

Definition at line 98 of file GlobalValue.h.

GlobalValueSubClassDataBits

const unsigned llvm::GlobalValue::GlobalValueSubClassDataBits = 17

staticprotected

Definition at line 91 of file GlobalValue.h.

HasLLVMReservedName

unsigned llvm::GlobalValue::HasLLVMReservedName

protected

True if the function's name starts with "llvm.".

This corresponds to the value of Function::isIntrinsic(), which may be true even if Function::intrinsicID() returns Intrinsic::not_intrinsic.

Definition at line 106 of file GlobalValue.h.

IntID

Intrinsic::ID llvm::GlobalValue::IntID

protected

The intrinsic ID for this subclass (which must be a Function).

This member is defined by this class, but not used for anything. Subclasses can use it to store their intrinsic ID, if they have one.

This is stored here to save space in Function on 64-bit hosts.

Definition at line 159 of file GlobalValue.h.

IsDSOLocal

unsigned llvm::GlobalValue::IsDSOLocal

protected

If true then there is a definition within the same linkage unit and that definition cannot be runtime preempted.

Definition at line 110 of file GlobalValue.h.

Linkage

unsigned llvm::GlobalValue::Linkage

protected

Definition at line 95 of file GlobalValue.h.

Parent

Module* llvm::GlobalValue::Parent

protected

Definition at line 169 of file GlobalValue.h.

Referenced by canIncreaseAlignment().

ThreadLocal

unsigned llvm::GlobalValue::ThreadLocal

protected

Definition at line 100 of file GlobalValue.h.

UnnamedAddrVal

unsigned llvm::GlobalValue::UnnamedAddrVal

protected

Definition at line 97 of file GlobalValue.h.

ValueType

Type* llvm::GlobalValue::ValueType

protected

Definition at line 89 of file GlobalValue.h.

Visibility

unsigned llvm::GlobalValue::Visibility

protected

Definition at line 96 of file GlobalValue.h.

---

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

• include/llvm/IR/GlobalValue.h
• lib/IR/Globals.cpp