llvm::ConstantExpr Class Reference

A constant value that is initialized with an expression using other constant values. More...

#include "llvm/IR/Constants.h"

Inheritance diagram for llvm::ConstantExpr:

Public Member Functions
	DECLARE_TRANSPARENT_OPERAND_ACCESSORS (Constant)
	Transparently provide more efficient getOperand methods.
bool	isCast () const
	Return true if this is a convert constant expression.
bool	isCompare () const
	Return true if this is a compare constant expression.
unsigned	getOpcode () const
	Return the opcode at the root of this constant expression.
unsigned	getPredicate () const
	Return the ICMP or FCMP predicate value.
ArrayRef< int >	getShuffleMask () const
	Assert that this is a shufflevector and return the mask.
Constant *	getShuffleMaskForBitcode () const
	Assert that this is a shufflevector and return the mask.
const char *	getOpcodeName () const
	Return a string representation for an opcode.
Constant *	getWithOperands (ArrayRef< Constant * > Ops) const
	This returns the current constant expression with the operands replaced with the specified values.
Constant *	getWithOperands (ArrayRef< Constant * > Ops, Type *Ty, bool OnlyIfReduced=false, Type *SrcTy=nullptr) const
	Get the current expression with the operands replaced.
Instruction *	getAsInstruction (Instruction *InsertBefore=nullptr) const
	Returns an Instruction which implements the same operation as this ConstantExpr.
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.
bool	isOneValue () const
	Returns true if the value is one.
bool	isNotOneValue () const
	Return true if the value is not the one value, or, for vectors, does not contain one value elements.
bool	isAllOnesValue () const
	Return true if this is the value that would be returned by getAllOnesValue.
bool	isNegativeZeroValue () const
	Return true if the value is what would be returned by getZeroValueForNegation.
bool	isZeroValue () const
	Return true if the value is negative zero or null value.
bool	isNotMinSignedValue () const
	Return true if the value is not the smallest signed value, or, for vectors, does not contain smallest signed value elements.
bool	isMinSignedValue () const
	Return true if the value is the smallest signed value.
bool	isFiniteNonZeroFP () const
	Return true if this is a finite and non-zero floating-point scalar constant or a fixed width vector constant with all finite and non-zero elements.
bool	isNormalFP () const
	Return true if this is a normal (as opposed to denormal, infinity, nan, or zero) floating-point scalar constant or a vector constant with all normal elements.
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.
bool	isNaN () const
	Return true if this is a floating-point NaN constant or a vector floating-point constant with all NaN elements.
bool	isElementWiseEqual (Value *Y) const
	Return true if this constant and a constant 'Y' are element-wise equal.
bool	containsUndefOrPoisonElement () const
	Return true if this is a vector constant that includes any undef or poison elements.
bool	containsPoisonElement () const
	Return true if this is a vector constant that includes any poison elements.
bool	containsUndefElement () const
	Return true if this is a vector constant that includes any strictly undef (not poison) elements.
bool	containsConstantExpression () const
	Return true if this is a fixed width vector constant that includes any constant expressions.
bool	isThreadDependent () const
	Return true if the value can vary between threads.
bool	isDLLImportDependent () const
	Return true if the value is dependent on a dllimport variable.
bool	isConstantUsed () const
	Return true if the constant has users other than constant expressions and other dangling things.
bool	needsRelocation () const
	This method classifies the entry according to whether or not it may generate a relocation entry (either static or dynamic).
bool	needsDynamicRelocation () const
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.
Constant *	getAggregateElement (Constant *Elt) const
Constant *	getSplatValue (bool AllowUndefs=false) const
	If all elements of the vector constant have the same value, return that value.
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.
void	destroyConstant ()
	Called if some element of this constant is no longer valid.
void	handleOperandChange (Value *, Value *)
	This method is a special form of User::replaceUsesOfWith (which does not work on constants) that does work on constants.
void	removeDeadConstantUsers () const
	If there are any dead constant users dangling off of this constant, remove them.
bool	hasOneLiveUse () const
	Return true if the constant has exactly one live use.
bool	hasZeroLiveUses () const
	Return true if the constant has no live uses.
const Constant *	stripPointerCasts () const
Constant *	stripPointerCasts ()
bool	isManifestConstant () const
	Return true if a constant is ConstantData or a ConstantAggregate or ConstantExpr that contain only ConstantData.
Public Member Functions inherited from llvm::User
	User (const User &)=delete
void	operator delete (void *Usr)
	Free memory allocated for User and Use objects.
void	operator delete (void *Usr, unsigned)
	Placement delete - required by std, called if the ctor throws.
void	operator delete (void *Usr, unsigned, unsigned)
	Placement delete - required by std, called if the ctor throws.
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.
MutableArrayRef< uint8_t >	getDescriptor ()
	Returns the descriptor co-allocated with this User instance.
void	setGlobalVariableNumOperands (unsigned NumOps)
	Set the number of operands on a GlobalVariable.
void	setNumHungOffUseOperands (unsigned NumOps)
	Subclasses with hung off uses need to manage the operand count themselves.
bool	isDroppable () const
	A droppable user is a user for which uses can be dropped without affecting correctness and should be dropped rather than preventing a transformation from happening.
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.
bool	replaceUsesOfWith (Value *From, Value *To)
	Replace uses of one Value with another.
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.
void	dump () const
	Support for debugging, callable in GDB: V->dump()
Type *	getType () const
	All values are typed, get the type of this value.
LLVMContext &	getContext () const
	All values hold a context through their type.
bool	hasName () const
ValueName *	getValueName () const
void	setValueName (ValueName *VN)
StringRef	getName () const
	Return a constant reference to the value's name.
void	setName (const Twine &Name)
	Change the name of the value.
void	takeName (Value *V)
	Transfer the name from V to this value.
std::string	getNameOrAsOperand () const
void	replaceAllUsesWith (Value *V)
	Change all uses of this to point to a new Value.
void	replaceNonMetadataUsesWith (Value *V)
	Change non-metadata uses of this to point to a new Value.
void	replaceUsesWithIf (Value *New, llvm::function_ref< bool(Use &U)> ShouldReplace)
	Go through the uses list for this definition and make each use point to "V" if the callback ShouldReplace returns true for the given Use.
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.
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 use of this value.
bool	hasNUses (unsigned N) const
	Return true if this Value has exactly N uses.
bool	hasNUsesOrMore (unsigned N) const
	Return true if this value has N uses or more.
bool	hasOneUser () const
	Return true if there is exactly one user of this value.
Use *	getSingleUndroppableUse ()
	Return true if there is exactly one use of this value that cannot be dropped.
const Use *	getSingleUndroppableUse () const
User *	getUniqueUndroppableUser ()
	Return true if there is exactly one unique user of this value that cannot be dropped (that user can have multiple uses of this value).
const User *	getUniqueUndroppableUser () const
bool	hasNUndroppableUses (unsigned N) const
	Return true if there this value.
bool	hasNUndroppableUsesOrMore (unsigned N) const
	Return true if this value has N uses or more.
void	dropDroppableUses (llvm::function_ref< bool(const Use *)> ShouldDrop=[](const Use *) { return true;})
	Remove every uses that can safely be removed.
void	dropDroppableUsesIn (User &Usr)
	Remove every use of this value in User that can safely be removed.
bool	isUsedInBasicBlock (const BasicBlock *BB) const
	Check if this value is used in the specified basic block.
unsigned	getNumUses () const
	This method computes the number of uses of this Value.
void	addUse (Use &U)
	This method should only be used by the Use class.
unsigned	getValueID () const
	Return an ID for the concrete type of this object.
unsigned	getRawSubclassOptionalData () const
	Return the raw optional flags value contained in this value.
void	clearSubclassOptionalData ()
	Clear the optional flags contained in this value.
bool	hasSameSubclassOptionalData (const Value *V) const
	Check the optional flags for equality.
bool	hasValueHandle () const
	Return true if there is a value handle associated with this value.
bool	isUsedByMetadata () const
	Return true if there is metadata referencing this value.
bool	isSwiftError () const
	Return true if this value is a swifterror value.
const Value *	stripPointerCasts () const
	Strip off pointer casts, all-zero GEPs and address space casts.
Value *	stripPointerCasts ()
const Value *	stripPointerCastsAndAliases () const
	Strip off pointer casts, all-zero GEPs, address space casts, and aliases.
Value *	stripPointerCastsAndAliases ()
const Value *	stripPointerCastsSameRepresentation () const
	Strip off pointer casts, all-zero GEPs and address space casts but ensures the representation of the result stays the same.
Value *	stripPointerCastsSameRepresentation ()
const Value *	stripPointerCastsForAliasAnalysis () const
	Strip off pointer casts, all-zero GEPs, single-argument phi nodes and invariant group info.
Value *	stripPointerCastsForAliasAnalysis ()
const Value *	stripInBoundsConstantOffsets () const
	Strip off pointer casts and all-constant inbounds GEPs.
Value *	stripInBoundsConstantOffsets ()
const Value *	stripAndAccumulateConstantOffsets (const DataLayout &DL, APInt &Offset, bool AllowNonInbounds, bool AllowInvariantGroup=false, function_ref< bool(Value &Value, APInt &Offset)> ExternalAnalysis=nullptr) const
	Accumulate the constant offset this value has compared to a base pointer.
Value *	stripAndAccumulateConstantOffsets (const DataLayout &DL, APInt &Offset, bool AllowNonInbounds, bool AllowInvariantGroup=false)
const Value *	stripAndAccumulateInBoundsConstantOffsets (const DataLayout &DL, APInt &Offset) const
	This is a wrapper around stripAndAccumulateConstantOffsets with the in-bounds requirement set to false.
Value *	stripAndAccumulateInBoundsConstantOffsets (const DataLayout &DL, APInt &Offset)
const Value *	stripInBoundsOffsets (function_ref< void(const Value *)> Func=[](const Value *) {}) const
	Strip off pointer casts and inbounds GEPs.
Value *	stripInBoundsOffsets (function_ref< void(const Value *)> Func=[](const Value *) {})
std::optional< int64_t >	getPointerOffsetFrom (const Value *Other, const DataLayout &DL) const
	If this ptr is provably equal to Other plus a constant offset, return that offset in bytes.
bool	canBeFreed () const
	Return true if the memory object referred to by V can by freed in the scope for which the SSA value defining the allocation is statically defined.
uint64_t	getPointerDereferenceableBytes (const DataLayout &DL, bool &CanBeNull, bool &CanBeFreed) const
	Returns the number of bytes known to be dereferenceable for the pointer value.
Align	getPointerAlignment (const DataLayout &DL) const
	Returns an alignment of the pointer value.
const Value *	DoPHITranslation (const BasicBlock *CurBB, const BasicBlock *PredBB) const
	Translate PHI node to its predecessor from the given basic block.
Value *	DoPHITranslation (const BasicBlock *CurBB, const BasicBlock *PredBB)
void	mutateType (Type *Ty)
	Mutate the type of this Value to be of the specified type.
template<class Compare >
void	sortUseList (Compare Cmp)
	Sort the use-list.
void	reverseUseList ()
	Reverse the use-list.
void	print (raw_ostream &O, bool IsForDebug=false) const
	Implement operator<< on Value.
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.
void	printAsOperand (raw_ostream &O, bool PrintType, ModuleSlotTracker &MST) const

Static Public Member Functions
static Constant *	getAlignOf (Type *Ty)
	getAlignOf constant expr - computes the alignment of a type in a target independent way (Note: the return type is an i64).
static Constant *	getSizeOf (Type *Ty)
	getSizeOf constant expr - computes the (alloc) size of a type (in address-units, not bits) in a target independent way (Note: the return type is an i64).
static Constant *	getNeg (Constant *C, bool HasNUW=false, bool HasNSW=false)
static Constant *	getNot (Constant *C)
static Constant *	getAdd (Constant *C1, Constant *C2, bool HasNUW=false, bool HasNSW=false)
static Constant *	getSub (Constant *C1, Constant *C2, bool HasNUW=false, bool HasNSW=false)
static Constant *	getMul (Constant *C1, Constant *C2, bool HasNUW=false, bool HasNSW=false)
static Constant *	getAnd (Constant *C1, Constant *C2)
static Constant *	getOr (Constant *C1, Constant *C2)
static Constant *	getXor (Constant *C1, Constant *C2)
static Constant *	getShl (Constant *C1, Constant *C2, bool HasNUW=false, bool HasNSW=false)
static Constant *	getLShr (Constant *C1, Constant *C2, bool isExact=false)
static Constant *	getAShr (Constant *C1, Constant *C2, bool isExact=false)
static Constant *	getTrunc (Constant *C, Type *Ty, bool OnlyIfReduced=false)
static Constant *	getSExt (Constant *C, Type *Ty, bool OnlyIfReduced=false)
static Constant *	getZExt (Constant *C, Type *Ty, bool OnlyIfReduced=false)
static Constant *	getFPTrunc (Constant *C, Type *Ty, bool OnlyIfReduced=false)
static Constant *	getFPExtend (Constant *C, Type *Ty, bool OnlyIfReduced=false)
static Constant *	getUIToFP (Constant *C, Type *Ty, bool OnlyIfReduced=false)
static Constant *	getSIToFP (Constant *C, Type *Ty, bool OnlyIfReduced=false)
static Constant *	getFPToUI (Constant *C, Type *Ty, bool OnlyIfReduced=false)
static Constant *	getFPToSI (Constant *C, Type *Ty, bool OnlyIfReduced=false)
static Constant *	getPtrToInt (Constant *C, Type *Ty, bool OnlyIfReduced=false)
static Constant *	getIntToPtr (Constant *C, Type *Ty, bool OnlyIfReduced=false)
static Constant *	getBitCast (Constant *C, Type *Ty, bool OnlyIfReduced=false)
static Constant *	getAddrSpaceCast (Constant *C, Type *Ty, bool OnlyIfReduced=false)
static Constant *	getNSWNeg (Constant *C)
static Constant *	getNUWNeg (Constant *C)
static Constant *	getNSWAdd (Constant *C1, Constant *C2)
static Constant *	getNUWAdd (Constant *C1, Constant *C2)
static Constant *	getNSWSub (Constant *C1, Constant *C2)
static Constant *	getNUWSub (Constant *C1, Constant *C2)
static Constant *	getNSWMul (Constant *C1, Constant *C2)
static Constant *	getNUWMul (Constant *C1, Constant *C2)
static Constant *	getNSWShl (Constant *C1, Constant *C2)
static Constant *	getNUWShl (Constant *C1, Constant *C2)
static Constant *	getExactAShr (Constant *C1, Constant *C2)
static Constant *	getExactLShr (Constant *C1, Constant *C2)
static Constant *	getExactLogBase2 (Constant *C)
	If C is a scalar/fixed width vector of known powers of 2, then this function returns a new scalar/fixed width vector obtained from logBase2 of C.
static Constant *	getBinOpIdentity (unsigned Opcode, Type *Ty, bool AllowRHSConstant=false, bool NSZ=false)
	Return the identity constant for a binary opcode.
static Constant *	getBinOpAbsorber (unsigned Opcode, Type *Ty)
	Return the absorbing element for the given binary operation, i.e.
static Constant *	getCast (unsigned ops, Constant *C, Type *Ty, bool OnlyIfReduced=false)
	Convenience function for getting a Cast operation.
static Constant *	getZExtOrBitCast (Constant *C, Type *Ty)
static Constant *	getSExtOrBitCast (Constant *C, Type *Ty)
static Constant *	getTruncOrBitCast (Constant *C, Type *Ty)
static Constant *	getSExtOrTrunc (Constant *C, Type *Ty)
	Create either an sext, trunc or nothing, depending on whether Ty is wider, narrower or the same as C->getType().
static Constant *	getPointerCast (Constant *C, Type *Ty)
	Create a BitCast, AddrSpaceCast, or a PtrToInt cast constant expression.
static Constant *	getPointerBitCastOrAddrSpaceCast (Constant *C, Type *Ty)
	Create a BitCast or AddrSpaceCast for a pointer type depending on the address space.
static Constant *	getIntegerCast (Constant *C, Type *Ty, bool IsSigned)
	Create a ZExt, Bitcast or Trunc for integer -> integer casts.
static Constant *	getFPCast (Constant *C, Type *Ty)
	Create a FPExt, Bitcast or FPTrunc for fp -> fp casts.
static Constant *	get (unsigned Opcode, Constant *C1, Constant *C2, unsigned Flags=0, Type *OnlyIfReducedTy=nullptr)
	get - Return a binary or shift operator constant expression, folding if possible.
static Constant *	getCompare (unsigned short pred, Constant *C1, Constant *C2, bool OnlyIfReduced=false)
	Return an ICmp or FCmp comparison operator constant expression.
static Constant *	getICmp (unsigned short pred, Constant *LHS, Constant *RHS, bool OnlyIfReduced=false)
	get* - Return some common constants without having to specify the full Instruction::OPCODE identifier.
static Constant *	getFCmp (unsigned short pred, Constant *LHS, Constant *RHS, bool OnlyIfReduced=false)
static Constant *	getGetElementPtr (Type *Ty, Constant *C, ArrayRef< Constant * > IdxList, bool InBounds=false, std::optional< unsigned > InRangeIndex=std::nullopt, Type *OnlyIfReducedTy=nullptr)
	Getelementptr form.
static Constant *	getGetElementPtr (Type *Ty, Constant *C, Constant *Idx, bool InBounds=false, std::optional< unsigned > InRangeIndex=std::nullopt, Type *OnlyIfReducedTy=nullptr)
static Constant *	getGetElementPtr (Type *Ty, Constant *C, ArrayRef< Value * > IdxList, bool InBounds=false, std::optional< unsigned > InRangeIndex=std::nullopt, Type *OnlyIfReducedTy=nullptr)
static Constant *	getInBoundsGetElementPtr (Type *Ty, Constant *C, ArrayRef< Constant * > IdxList)
	Create an "inbounds" getelementptr.
static Constant *	getInBoundsGetElementPtr (Type *Ty, Constant *C, Constant *Idx)
static Constant *	getInBoundsGetElementPtr (Type *Ty, Constant *C, ArrayRef< Value * > IdxList)
static Constant *	getExtractElement (Constant *Vec, Constant *Idx, Type *OnlyIfReducedTy=nullptr)
static Constant *	getInsertElement (Constant *Vec, Constant *Elt, Constant *Idx, Type *OnlyIfReducedTy=nullptr)
static Constant *	getShuffleVector (Constant *V1, Constant *V2, ArrayRef< int > Mask, Type *OnlyIfReducedTy=nullptr)
static bool	isDesirableBinOp (unsigned Opcode)
	Whether creating a constant expression for this binary operator is desirable.
static bool	isSupportedBinOp (unsigned Opcode)
	Whether creating a constant expression for this binary operator is supported.
static bool	isSupportedGetElementPtr (const Type *SrcElemTy)
	Whether creating a constant expression for this getelementptr type is supported.
static bool	classof (const Value *V)
	Methods for support type inquiry through isa, cast, and dyn_cast:
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.
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.
static Constant *	replaceUndefsWith (Constant *C, Constant *Replacement)
	Try to replace undefined constant C or undefined elements in C with Replacement.
static Constant *	mergeUndefsWith (Constant *C, Constant *Other)
	Merges undefs of a Constant with another Constant, along with the undefs already present.
Static Public Member Functions inherited from llvm::User
static bool	classof (const Value *V)
Static Public Member Functions inherited from llvm::Value
static void	dropDroppableUse (Use &U)
	Remove the droppable use U.

Protected Member Functions
	ConstantExpr (Type *ty, unsigned Opcode, Use *Ops, unsigned NumOps)
	~ConstantExpr ()=default
Protected Member Functions inherited from llvm::Constant
	Constant (Type *ty, ValueTy vty, Use *Ops, unsigned NumOps)
	~Constant ()=default
Protected Member Functions inherited from llvm::User
void *	operator new (size_t Size)
	Allocate a User with an operand pointer co-allocated.
void *	operator new (size_t Size, unsigned Us)
	Allocate a User with the operands co-allocated.
void *	operator new (size_t Size, unsigned Us, unsigned DescBytes)
	Allocate a User with the operands co-allocated.
	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.
void	growHungoffUses (unsigned N, bool IsPhi=false)
	Grow the number of hung off uses.
	~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.
void	getAllMetadata (SmallVectorImpl< std::pair< unsigned, MDNode * > > &MDs) const
	Appends all metadata attached to this value to MDs, sorting by KindID.
bool	hasMetadata () const
	Return true if this value has any metadata attached to it.
bool	eraseMetadata (unsigned KindID)
	Erase all metadata attachments with the given kind.
void	clearMetadata ()
	Erase all metadata attached to this Value.
unsigned short	getSubclassDataFromValue () const
void	setValueSubclassData (unsigned short D)
MDNode *	getMetadata (unsigned KindID) const
	Get the current metadata attachments for the given kind, if any.
MDNode *	getMetadata (StringRef Kind) const
void	getMetadata (unsigned KindID, SmallVectorImpl< MDNode * > &MDs) const
	Appends all attachments with the given ID to MDs in insertion order.
void	getMetadata (StringRef Kind, SmallVectorImpl< MDNode * > &MDs) const
bool	hasMetadata (unsigned KindID) const
	Return true if this value has the given type of metadata attached.
bool	hasMetadata (StringRef Kind) const
void	setMetadata (unsigned KindID, MDNode *Node)
	Set a particular kind of metadata attachment.
void	setMetadata (StringRef Kind, MDNode *Node)
void	addMetadata (unsigned KindID, MDNode &MD)
	Add a metadata attachment.
void	addMetadata (StringRef Kind, MDNode &MD)

Friends
struct	ConstantExprKeyType
class	Constant

Additional Inherited Members
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 >
Static Public Attributes inherited from llvm::Value
static constexpr unsigned	MaxAlignmentExponent = 32
	The maximum alignment for instructions.
static constexpr uint64_t	MaximumAlignment = 1ULL << MaxAlignmentExponent
Protected Types inherited from llvm::Value
enum	: unsigned { NumUserOperandsBits = 27 }
	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)
Protected Attributes inherited from llvm::Value
unsigned char	SubclassOptionalData: 7
	Hold subclass data that can be dropped.
unsigned	NumUserOperands: NumUserOperandsBits
unsigned	IsUsedByMD: 1
unsigned	HasName: 1
unsigned	HasMetadata: 1
unsigned	HasHungOffUses: 1
unsigned	HasDescriptor: 1

Detailed Description

A constant value that is initialized with an expression using other constant values.

This class uses the standard Instruction opcodes to define the various constant expressions. The Opcode field for the ConstantExpr class is maintained in the Value::SubclassData field.

Definition at line 997 of file Constants.h.

Constructor & Destructor Documentation

ConstantExpr()

llvm::ConstantExpr::ConstantExpr ( Type *  ty, unsigned  Opcode, Use *  Ops, unsigned  NumOps  )

inlineprotected

Definition at line 1005 of file Constants.h.

~ConstantExpr()

llvm::ConstantExpr::~ConstantExpr ( )

protecteddefault

Member Function Documentation

classof()

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

inlinestatic

Methods for support type inquiry through isa, cast, and dyn_cast:

Definition at line 1342 of file Constants.h.

DECLARE_TRANSPARENT_OPERAND_ACCESSORS()

llvm::ConstantExpr::DECLARE_TRANSPARENT_OPERAND_ACCESSORS

(

Constant

)

Transparently provide more efficient getOperand methods.

get()

Constant * ConstantExpr::get ( unsigned  Opcode, Constant *  C1, Constant *  C2, unsigned  Flags = 0, Type *  OnlyIfReducedTy = nullptr  )

static

get - Return a binary or shift operator constant expression, folding if possible.

Parameters

OnlyIfReducedTy

see getWithOperands() docs.

Definition at line 2247 of file Constants.cpp.

References assert(), llvm::ConstantFoldBinaryInstruction(), llvm::LLVMContextImpl::ExprConstants, Flags, llvm::Value::getContext(), llvm::Value::getType(), llvm::Instruction::isBinaryOp(), llvm::Type::isIntOrIntVectorTy(), isSupportedBinOp(), and llvm::LLVMContext::pImpl.

Referenced by llvm::ConstantFoldBinaryInstruction(), llvm::ConstantFoldBinaryOpOperands(), llvm::TargetFolder::FoldBinOp(), llvm::ConstantFolder::FoldBinOp(), llvm::TargetFolder::FoldExactBinOp(), llvm::ConstantFolder::FoldExactBinOp(), foldGEPOfGEP(), llvm::TargetFolder::FoldNoWrapBinOp(), llvm::ConstantFolder::FoldNoWrapBinOp(), getAdd(), getAnd(), getAShr(), getLShr(), getMul(), getNot(), getOr(), getShl(), getSub(), getWithOperands(), getXor(), and simplifyAssocCastAssoc().

getAdd()

Constant * ConstantExpr::getAdd ( Constant *  C1, Constant *  C2, bool  HasNUW = false, bool  HasNSW = false  )

static

Definition at line 2593 of file Constants.cpp.

References Flags, get(), llvm::OverflowingBinaryOperator::NoSignedWrap, and llvm::OverflowingBinaryOperator::NoUnsignedWrap.

Referenced by llvm::InstCombiner::AddOne(), BuildConstantFromSCEV(), llvm::ConstantFoldGetElementPtr(), llvm::copyNonnullMetadata(), llvm::InstCombinerImpl::foldAddWithConstant(), foldNoWrapAdd(), foldShiftOfShiftedBinOp(), getAsConstantIndexedAddress(), llvm::InstCombiner::getFlippedStrictnessPredicateAndConstant(), LLVMConstAdd(), matchFunnelShift(), llvm::InstCombinerImpl::visitAdd(), and llvm::InstCombinerImpl::visitAnd().

getAddrSpaceCast()

Constant * ConstantExpr::getAddrSpaceCast ( Constant *  C, Type *  Ty, bool  OnlyIfReduced = false  )

static

Definition at line 2225 of file Constants.cpp.

References assert(), llvm::CallingConv::C, llvm::CastInst::castIsValid(), llvm::FixedVectorType::get(), llvm::PointerType::getAddressSpace(), getBitCast(), getFoldedCast(), llvm::Type::getScalarType(), llvm::PointerType::getWithSamePointeeType(), and llvm::PointerType::hasSameElementTypeAs().

Referenced by cloneConstantExprWithNewAddressSpace(), getCast(), getPointerBitCastOrAddrSpaceCast(), getPointerCast(), LLVMConstAddrSpaceCast(), and operandWithNewAddressSpaceOrCreateUndef().

getAlignOf()

Constant * ConstantExpr::getAlignOf ( Type *  Ty )

static

getAlignOf constant expr - computes the alignment of a type in a target independent way (Note: the return type is an i64).

Definition at line 2359 of file Constants.cpp.

References GEP, llvm::StructType::get(), llvm::ConstantInt::get(), llvm::Type::getContext(), getGetElementPtr(), llvm::Type::getInt1Ty(), llvm::Type::getInt32Ty(), llvm::Type::getInt64Ty(), llvm::Constant::getNullValue(), llvm::Type::getPointerTo(), and getPtrToInt().

Referenced by LLVMAlignOf().

getAnd()

Constant * ConstantExpr::getAnd ( Constant *  C1, Constant *  C2  )

static

Definition at line 2614 of file Constants.cpp.

References get().

Referenced by llvm::ConstantFoldBinaryInstruction(), ExtractConstantBytes(), llvm::InstCombinerImpl::foldCmpLoadFromIndexedGlobal(), and LLVMConstAnd().

getAShr()

Constant * ConstantExpr::getAShr ( Constant *  C1, Constant *  C2, bool  isExact = false  )

static

Definition at line 2638 of file Constants.cpp.

References get(), and llvm::PossiblyExactOperator::IsExact.

Referenced by LLVMConstAShr().

getAsInstruction()

Instruction * ConstantExpr::getAsInstruction

(

Instruction *

InsertBefore = nullptr

)

const

Returns an Instruction which implements the same operation as this ConstantExpr.

If InsertBefore is not null, the new instruction is inserted before it, otherwise it is not inserted into any basic block.

A better approach to this could be to have a constructor for Instruction which would take a ConstantExpr parameter, but that would have spread implementation details of ConstantExpr outside of Constants.cpp, which would make it harder to remove ConstantExprs altogether.

Definition at line 3354 of file Constants.cpp.

References assert(), llvm::BinaryOperator::Create(), llvm::CastInst::Create(), llvm::CmpInst::Create(), llvm::GetElementPtrInst::Create(), llvm::ExtractElementInst::Create(), llvm::InsertElementInst::Create(), llvm::GetElementPtrInst::CreateInBounds(), llvm::User::getNumOperands(), getOpcode(), getPredicate(), getShuffleMask(), llvm::Value::getType(), llvm::PossiblyExactOperator::IsExact, llvm::OverflowingBinaryOperator::NoSignedWrap, llvm::OverflowingBinaryOperator::NoUnsignedWrap, llvm::User::operands(), llvm::Instruction::setHasNoSignedWrap(), llvm::Instruction::setHasNoUnsignedWrap(), llvm::Instruction::setIsExact(), llvm::ArrayRef< T >::slice(), and llvm::Value::SubclassOptionalData.

getBinOpAbsorber()

Constant * ConstantExpr::getBinOpAbsorber ( unsigned  Opcode, Type *  Ty  )

static

Return the absorbing element for the given binary operation, i.e.

a constant C such that X op C = C and C op X = C for every X. For example, this returns zero for integer multiplication. It returns null if the operator doesn't have an absorbing element.

Definition at line 2717 of file Constants.cpp.

References llvm::Constant::getAllOnesValue(), and llvm::Constant::getNullValue().

Referenced by simplifyWithOpReplaced().

getBinOpIdentity()

Constant * ConstantExpr::getBinOpIdentity ( unsigned  Opcode, Type *  Ty, bool  AllowRHSConstant = false, bool  NSZ = false  )

static

Return the identity constant for a binary opcode.

The identity constant C is defined as X op C = X and C op X = X for every X when the binary operation is commutative. If the binop is not commutative, callers can acquire the operand 1 identity constant by setting AllowRHSConstant to true. For example, any shift has a zero identity constant for operand 1: X shift 0 = X. If this is a fadd/fsub operation and we don't care about signed zeros, then setting NSZ to true returns the identity +0.0 instead of -0.0. Return nullptr if the operator does not have an identity constant.

Definition at line 2672 of file Constants.cpp.

References assert(), llvm::ConstantFP::get(), llvm::ConstantInt::get(), llvm::Constant::getAllOnesValue(), llvm::Constant::getNullValue(), llvm::ConstantFP::getZero(), llvm::Instruction::isBinaryOp(), llvm::Instruction::isCommutative(), and llvm_unreachable.

Referenced by llvm::ConstantFoldBinaryInstruction(), llvm::InstCombinerImpl::foldBinopWithPhiOperands(), foldSelectBinOpIdentity(), llvm::InstCombinerImpl::foldSelectIntoOp(), foldSelectShuffleWith1Binop(), llvm::InstCombinerImpl::foldUsingDistributiveLaws(), getIdentityValue(), llvm::InstCombiner::getSafeVectorConstantForBinop(), LinearizeExprTree(), and simplifyWithOpReplaced().

getBitCast()

Constant * ConstantExpr::getBitCast ( Constant *  C, Type *  Ty, bool  OnlyIfReduced = false  )

static

Definition at line 2213 of file Constants.cpp.

References assert(), llvm::CallingConv::C, llvm::CastInst::castIsValid(), and getFoldedCast().

Referenced by BitCastConstantVector(), BuildConstantFromSCEV(), cloneConstantExprWithNewAddressSpace(), collectInsertionElements(), llvm::ConstantFoldCompareInstruction(), llvm::SanitizerStatReport::create(), llvm::OpenMPIRBuilder::createTask(), emitGlobalConstantVector(), llvm::SanitizerStatReport::finish(), FoldBitCast(), getAddrSpaceCast(), getCast(), getFuncAddrForProfData(), getMemCmpLoad(), getNegativeIsTrueBoolVec(), llvm::OpenMPIRBuilder::getOrCreateRuntimeFunction(), llvm::Module::getOrInsertFunction(), llvm::Module::getOrInsertGlobal(), getPointerBitCastOrAddrSpaceCast(), getPointerCast(), getSExtOrBitCast(), getTruncOrBitCast(), getZExtOrBitCast(), insertCall(), instrumentOneFunc(), llvm::isBytewiseValue(), llvm::Constant::isElementWiseEqual(), LLVMConstBitCast(), OptimizeGlobalAddressOfAllocation(), OptimizeGlobalAliases(), optimizeMemCmpConstantSize(), processInternalGlobal(), removeGlobalCtors(), replaceAliasWithAliasee(), replaceWithConstant(), llvm::CoroIdInst::setCoroutineSelf(), and simplifyRelativeLoad().

getCast()

Constant * ConstantExpr::getCast ( unsigned  ops, Constant *  C, Type *  Ty, bool  OnlyIfReduced = false  )

static

Convenience function for getting a Cast operation.

Parameters

ops	The opcode for the conversion
C	The constant to be converted
Ty	The type to which the constant is converted
OnlyIfReduced	see getWithOperands() docs.

Definition at line 1957 of file Constants.cpp.

References assert(), llvm::CallingConv::C, llvm::CastInst::castIsValid(), getAddrSpaceCast(), getBitCast(), getFPExtend(), getFPToSI(), getFPToUI(), getFPTrunc(), getIntToPtr(), getPtrToInt(), getSExt(), getSIToFP(), getTrunc(), getUIToFP(), getZExt(), llvm::Instruction::isCast(), and llvm_unreachable.

Referenced by llvm::JumpThreadingPass::computeValueKnownInPredecessorsImpl(), llvm::ConstantFoldCastInstruction(), llvm::ConstantFoldCastOperand(), llvm::ConstantFoldCompareInstruction(), llvm::ConstantFoldLoadThroughBitcast(), llvm::TargetFolder::CreateCast(), llvm::ConstantFolder::CreateCast(), llvm::orc::createIRTypedAddress(), llvm::InstCombinerImpl::foldICmpWithZextOrSext(), getFPCast(), getIntegerCast(), getWithOperands(), lookThroughCast(), OptimizeAwayTrappingUsesOfValue(), simplifyAndOrOfCmps(), simplifyAssocCastAssoc(), and simplifyICmpInst().

getCompare()

Constant * ConstantExpr::getCompare ( unsigned short  pred, Constant *  C1, Constant *  C2, bool  OnlyIfReduced = false  )

static

Return an ICmp or FCmp comparison operator constant expression.

Parameters

OnlyIfReduced

see getWithOperands() docs.

Definition at line 2372 of file Constants.cpp.

References assert(), llvm::CmpInst::FCMP_FALSE, llvm::CmpInst::FCMP_OEQ, llvm::CmpInst::FCMP_OGE, llvm::CmpInst::FCMP_OGT, llvm::CmpInst::FCMP_OLE, llvm::CmpInst::FCMP_OLT, llvm::CmpInst::FCMP_ONE, llvm::CmpInst::FCMP_ORD, llvm::CmpInst::FCMP_TRUE, llvm::CmpInst::FCMP_UEQ, llvm::CmpInst::FCMP_UGE, llvm::CmpInst::FCMP_UGT, llvm::CmpInst::FCMP_ULE, llvm::CmpInst::FCMP_ULT, llvm::CmpInst::FCMP_UNE, llvm::CmpInst::FCMP_UNO, getFCmp(), getICmp(), llvm::Value::getType(), llvm::CmpInst::ICMP_EQ, llvm::CmpInst::ICMP_NE, llvm::CmpInst::ICMP_SGE, llvm::CmpInst::ICMP_SGT, llvm::CmpInst::ICMP_SLE, llvm::CmpInst::ICMP_SLT, llvm::CmpInst::ICMP_UGE, llvm::CmpInst::ICMP_UGT, llvm::CmpInst::ICMP_ULE, llvm::CmpInst::ICMP_ULT, and llvm_unreachable.

Referenced by computeUnlikelySuccessors(), llvm::JumpThreadingPass::computeValueKnownInPredecessorsImpl(), llvm::ConstantFoldBinaryInstruction(), llvm::ConstantFoldCompareInstOperands(), llvm::ConstantFoldCompareInstruction(), llvm::TargetFolder::CreateFCmp(), llvm::ConstantFolder::CreateFCmp(), llvm::JumpThreadingPass::evaluateOnPredecessorEdge(), llvm::TargetFolder::FoldICmp(), llvm::ConstantFolder::FoldICmp(), llvm::InstCombinerImpl::foldICmpSelectConstant(), getWithOperands(), llvm::GCNTTIImpl::instCombineIntrinsic(), and llvm::InstCombinerImpl::visitAnd().

getExactAShr()

static Constant * llvm::ConstantExpr::getExactAShr ( Constant *  C1, Constant *  C2  )

inlinestatic

Definition at line 1100 of file Constants.h.

getExactLogBase2()

Constant * ConstantExpr::getExactLogBase2 ( Constant *  C )

static

If C is a scalar/fixed width vector of known powers of 2, then this function returns a new scalar/fixed width vector obtained from logBase2 of C.

Undef vector elements are set to zero. Return a null pointer otherwise.

Definition at line 2643 of file Constants.cpp.

References llvm::CallingConv::C, E, llvm::ConstantVector::get(), llvm::ConstantInt::get(), llvm::Constant::getNullValue(), llvm::Type::getScalarType(), I, llvm::APInt::isPowerOf2(), llvm::APInt::logBase2(), llvm::PatternMatch::m_APInt(), llvm::PatternMatch::match(), and llvm::SmallVectorTemplateBase< T, bool >::push_back().

Referenced by detectShiftUntilBitTestIdiom(), takeLog2(), llvm::InstCombinerImpl::visitAnd(), llvm::InstCombinerImpl::visitMul(), and llvm::InstCombinerImpl::visitSDiv().

getExactLShr()

static Constant * llvm::ConstantExpr::getExactLShr ( Constant *  C1, Constant *  C2  )

inlinestatic

Definition at line 1104 of file Constants.h.

getExtractElement()

Constant * ConstantExpr::getExtractElement ( Constant *  Vec, Constant *  Idx, Type *  OnlyIfReducedTy = nullptr  )

static

Definition at line 2510 of file Constants.cpp.

References assert(), llvm::ConstantFoldExtractElementInstruction(), llvm::LLVMContextImpl::ExprConstants, llvm::Value::getContext(), llvm::Value::getType(), Idx, llvm::Type::isVectorTy(), and llvm::LLVMContext::pImpl.

Referenced by BitCastConstantVector(), llvm::ConstantFoldBinaryInstruction(), llvm::ConstantFoldCastInstruction(), llvm::ConstantFoldCompareInstruction(), llvm::ConstantFoldExtractElementInstruction(), llvm::ConstantFoldInsertElementInstruction(), llvm::ConstantFoldSelectInstruction(), llvm::ConstantFoldShuffleVectorInstruction(), llvm::ConstantFoldUnaryInstruction(), llvm::TargetFolder::FoldExtractElement(), llvm::ConstantFolder::FoldExtractElement(), getWithOperands(), LLVMConstExtractElement(), and simplifyExtractElementInst().

getFCmp()

Constant * ConstantExpr::getFCmp ( unsigned short  pred, Constant *  LHS, Constant *  RHS, bool  OnlyIfReduced = false  )

static

Definition at line 2485 of file Constants.cpp.

References assert(), llvm::ConstantFoldCompareInstruction(), llvm::LLVMContextImpl::ExprConstants, llvm::VectorType::get(), llvm::Type::getContext(), llvm::Value::getContext(), llvm::Type::getInt1Ty(), llvm::Value::getType(), llvm::CmpInst::isFPPredicate(), LHS, llvm::LLVMContext::pImpl, pred, and RHS.

Referenced by evaluateFCmpRelation(), getCompare(), and LLVMConstFCmp().

getFPCast()

Constant * ConstantExpr::getFPCast ( Constant *  C, Type *  Ty  )

static

Create a FPExt, Bitcast or FPTrunc for fp -> fp casts.

Parameters

C	The integer constant to be casted
Ty	The integer type to cast to

Definition at line 2063 of file Constants.cpp.

References assert(), llvm::CallingConv::C, getCast(), llvm::Type::getScalarSizeInBits(), and llvm::Type::isFPOrFPVectorTy().

Referenced by llvm::TargetFolder::CreateFPCast(), llvm::ConstantFolder::CreateFPCast(), and LLVMConstFPCast().

getFPExtend()

Constant * ConstantExpr::getFPExtend ( Constant *  C, Type *  Ty, bool  OnlyIfReduced = false  )

static

Definition at line 2129 of file Constants.cpp.

References assert(), llvm::CallingConv::C, getFoldedCast(), llvm::Type::getScalarSizeInBits(), and llvm::Type::isFPOrFPVectorTy().

Referenced by getCast(), LLVMConstFPExt(), and lookThroughCast().

getFPToSI()

Constant * ConstantExpr::getFPToSI ( Constant *  C, Type *  Ty, bool  OnlyIfReduced = false  )

static

Definition at line 2174 of file Constants.cpp.

References assert(), llvm::CallingConv::C, getFoldedCast(), and llvm::Type::isIntOrIntVectorTy().

Referenced by llvm::InstCombinerImpl::foldFCmpIntToFPConst(), getCast(), LLVMConstFPToSI(), lookThroughCast(), and llvm::InstCombinerImpl::visitFAdd().

getFPToUI()

Constant * ConstantExpr::getFPToUI ( Constant *  C, Type *  Ty, bool  OnlyIfReduced = false  )

static

Definition at line 2163 of file Constants.cpp.

References assert(), llvm::CallingConv::C, getFoldedCast(), and llvm::Type::isIntOrIntVectorTy().

Referenced by llvm::InstCombinerImpl::foldFCmpIntToFPConst(), getCast(), LLVMConstFPToUI(), and lookThroughCast().

getFPTrunc()

Constant * ConstantExpr::getFPTrunc ( Constant *  C, Type *  Ty, bool  OnlyIfReduced = false  )

static

Definition at line 2117 of file Constants.cpp.

References assert(), llvm::CallingConv::C, getFoldedCast(), llvm::Type::getScalarSizeInBits(), and llvm::Type::isFPOrFPVectorTy().

Referenced by getCast(), llvm::AA::getWithType(), LLVMConstFPTrunc(), and lookThroughCast().

getGetElementPtr() [1/3]

static Constant * llvm::ConstantExpr::getGetElementPtr ( Type *  Ty, Constant *  C, ArrayRef< Constant * >  IdxList, bool  InBounds = false, std::optional< unsigned >  InRangeIndex = std::nullopt, Type *  OnlyIfReducedTy = nullptr  )

inlinestatic

Getelementptr form.

Value* is only accepted for convenience; all elements must be Constants.

Parameters

InRangeIndex	the inrange index if present or std::nullopt.
OnlyIfReducedTy	see getWithOperands() docs.

Definition at line 1227 of file Constants.h.

References llvm::CallingConv::C, llvm::ArrayRef< T >::data(), and llvm::ArrayRef< T >::size().

Referenced by BuildConstantFromSCEV(), llvm::ConstantFoldGetElementPtr(), llvm::SanitizerStatReport::create(), llvm::TargetFolder::FoldGEP(), llvm::ConstantFolder::FoldGEP(), foldGEPOfGEP(), getAlignOf(), getSizeOf(), getWithOperands(), LLVMConstGEP2(), OptimizeAwayTrappingUsesOfValue(), simplifyGEPInst(), simplifyRelativeLoad(), and splitGlobal().

getGetElementPtr() [2/3]

Constant * ConstantExpr::getGetElementPtr ( Type *  Ty, Constant *  C, ArrayRef< Value * >  IdxList, bool  InBounds = false, std::optional< unsigned >  InRangeIndex = std::nullopt, Type *  OnlyIfReducedTy = nullptr  )

static

Definition at line 2394 of file Constants.cpp.

References assert(), llvm::CallingConv::C, llvm::ConstantFoldGetElementPtr(), llvm::LLVMContextImpl::ExprConstants, llvm::gep_type_begin(), llvm::gep_type_end(), llvm::VectorType::get(), llvm::PointerType::get(), llvm::PointerType::getAddressSpace(), llvm::Type::getContext(), llvm::ElementCount::getFixed(), llvm::GetElementPtrInst::getIndexedType(), llvm::Type::getPointerTo(), llvm::ConstantVector::getSplat(), Idx, llvm::PointerType::isOpaque(), llvm::PointerType::isOpaqueOrPointeeTypeMatches(), isSupportedGetElementPtr(), and llvm::ArrayRef< T >::size().

getGetElementPtr() [3/3]

static Constant * llvm::ConstantExpr::getGetElementPtr ( Type *  Ty, Constant *  C, Constant *  Idx, bool  InBounds = false, std::optional< unsigned >  InRangeIndex = std::nullopt, Type *  OnlyIfReducedTy = nullptr  )

inlinestatic

Definition at line 1236 of file Constants.h.

References llvm::CallingConv::C, and Idx.

getICmp()

Constant * ConstantExpr::getICmp ( unsigned short  pred, Constant *  LHS, Constant *  RHS, bool  OnlyIfReduced = false  )

static

get* - Return some common constants without having to specify the full Instruction::OPCODE identifier.

Definition at line 2460 of file Constants.cpp.

References assert(), llvm::ConstantFoldCompareInstruction(), llvm::LLVMContextImpl::ExprConstants, llvm::VectorType::get(), llvm::Type::getContext(), llvm::Value::getContext(), llvm::Type::getInt1Ty(), llvm::Value::getType(), llvm::CmpInst::isIntPredicate(), LHS, llvm::LLVMContext::pImpl, pred, and RHS.

Referenced by llvm::ConstantFoldCompareInstruction(), evaluateICmpRelation(), getCompare(), getNegativeIsTrueBoolVec(), llvm::Constant::isElementWiseEqual(), LLVMConstICmp(), reuseTableCompare(), simplifyICmpInst(), llvm::ScalarEvolution::SimplifyICmpOperands(), and llvm::InstCombinerImpl::visitCallInst().

getInBoundsGetElementPtr() [1/3]

static Constant * llvm::ConstantExpr::getInBoundsGetElementPtr ( Type *  Ty, Constant *  C, ArrayRef< Constant * >  IdxList  )

inlinestatic

Create an "inbounds" getelementptr.

See the documentation for the "inbounds" flag in LangRef.html for details.

Definition at line 1253 of file Constants.h.

References llvm::CallingConv::C.

Referenced by llvm::IRBuilderBase::CreateGlobalStringPtr(), FoldBitCast(), llvm::TargetFolder::FoldGEP(), llvm::ConstantFolder::FoldGEP(), and LLVMConstInBoundsGEP2().

getInBoundsGetElementPtr() [2/3]

static Constant * llvm::ConstantExpr::getInBoundsGetElementPtr ( Type *  Ty, Constant *  C, ArrayRef< Value * >  IdxList  )

inlinestatic

Definition at line 1264 of file Constants.h.

References llvm::CallingConv::C.

getInBoundsGetElementPtr() [3/3]

static Constant * llvm::ConstantExpr::getInBoundsGetElementPtr ( Type *  Ty, Constant *  C, Constant *  Idx  )

inlinestatic

Definition at line 1257 of file Constants.h.

References llvm::CallingConv::C, and Idx.

getInsertElement()

Constant * ConstantExpr::getInsertElement ( Constant *  Vec, Constant *  Elt, Constant *  Idx, Type *  OnlyIfReducedTy = nullptr  )

static

Definition at line 2532 of file Constants.cpp.

References assert(), llvm::ConstantFoldInsertElementInstruction(), llvm::LLVMContextImpl::ExprConstants, llvm::Value::getContext(), llvm::Value::getType(), Idx, llvm::Type::isVectorTy(), and llvm::LLVMContext::pImpl.

Referenced by llvm::TargetFolder::FoldInsertElement(), llvm::ConstantFolder::FoldInsertElement(), llvm::ConstantVector::getSplat(), getWithOperands(), LLVMConstInsertElement(), and llvm::simplifyInsertElementInst().

getIntegerCast()

Constant * ConstantExpr::getIntegerCast ( Constant *  C, Type *  Ty, bool  IsSigned  )

static

Create a ZExt, Bitcast or Trunc for integer -> integer casts.

Parameters

C	The integer constant to be casted
Ty	The integer type to cast to
IsSigned	Whether C should be treated as signed or not

Definition at line 2051 of file Constants.cpp.

References assert(), llvm::CallingConv::C, getCast(), llvm::Type::getScalarSizeInBits(), llvm::Type::isIntOrIntVectorTy(), and isSigned().

Referenced by llvm::ConstantFoldCastOperand(), llvm::ConstantFoldCompareInstOperands(), llvm::TargetFolder::CreateIntCast(), llvm::ConstantFolder::CreateIntCast(), createMalloc(), llvm::emitGEPOffset(), llvm::InstCombinerImpl::EvaluateInDifferentType(), GetConstantInt(), llvm::isBytewiseValue(), LLVMConstIntCast(), lookThroughCast(), llvm::AsmPrinter::lowerConstant(), processUse(), simplifySubInst(), and llvm::InstCombinerImpl::visitCallInst().

getIntToPtr()

Constant * ConstantExpr::getIntToPtr ( Constant *  C, Type *  Ty, bool  OnlyIfReduced = false  )

static

Definition at line 2199 of file Constants.cpp.

References assert(), llvm::CallingConv::C, getFoldedCast(), and llvm::Type::isPtrOrPtrVectorTy().

Referenced by llvm::SanitizerStatReport::create(), llvm::InstCombinerImpl::foldICmpWithCastOp(), getCast(), llvm::Constant::getIntegerValue(), LLVMConstIntToPtr(), llvm::MergeBasicBlockIntoOnlyPred(), SegmentOffset(), simplifyGEPInst(), simplifyICmpInst(), llvm::UpgradeBitCastExpr(), and llvm::BasicBlock::~BasicBlock().

getLShr()

Constant * ConstantExpr::getLShr ( Constant *  C1, Constant *  C2, bool  isExact = false  )

static

Definition at line 2633 of file Constants.cpp.

References get(), and llvm::PossiblyExactOperator::IsExact.

Referenced by collectInsertionElements(), llvm::ConstantFoldBinaryInstruction(), dropRedundantMaskingOfLeftShiftInput(), ExtractConstantBytes(), LLVMConstLShr(), and llvm::InstCombinerImpl::SimplifyDemandedUseBits().

getMul()

Constant * ConstantExpr::getMul ( Constant *  C1, Constant *  C2, bool  HasNUW = false, bool  HasNSW = false  )

static

Definition at line 2607 of file Constants.cpp.

References Flags, get(), llvm::OverflowingBinaryOperator::NoSignedWrap, and llvm::OverflowingBinaryOperator::NoUnsignedWrap.

Referenced by BuildConstantFromSCEV(), createMalloc(), llvm::emitGEPOffset(), LLVMConstMul(), and llvm::InstCombinerImpl::visitCallInst().

getNeg()

Constant * ConstantExpr::getNeg ( Constant *  C, bool  HasNUW = false, bool  HasNSW = false  )

static

Definition at line 2581 of file Constants.cpp.

References assert(), llvm::CallingConv::C, llvm::ConstantInt::get(), and getSub().

Referenced by llvm::InstCombinerImpl::foldICmpAddConstant(), llvm::InstCombinerImpl::foldICmpBinOp(), llvm::ScalarEvolution::getNegativeSCEV(), LLVMConstNeg(), matchIncrement(), NegateValue(), llvm::InstCombinerImpl::visitCallInst(), llvm::InstCombinerImpl::visitMul(), llvm::InstCombinerImpl::visitSDiv(), and llvm::InstCombinerImpl::visitSRem().

getNot()

Constant * ConstantExpr::getNot ( Constant *  C )

static

Definition at line 2587 of file Constants.cpp.

References assert(), llvm::CallingConv::C, get(), and llvm::Constant::getAllOnesValue().

Referenced by llvm::JumpThreadingPass::computeValueKnownInPredecessorsImpl(), llvm::ConstantFoldCompareInstruction(), dropRedundantMaskingOfLeftShiftInput(), llvm::InstCombinerImpl::foldICmpBinOp(), llvm::InstCombinerImpl::foldICmpBinOpEqualityWithConstant(), llvm::InstCombinerImpl::foldICmpEquality(), llvm::ScalarEvolution::getNotSCEV(), llvm::invertCondition(), LLVMConstNot(), simplifyLogicOfAddSub(), simplifyUsingControlFlow(), llvm::InstCombinerImpl::sinkNotIntoLogicalOp(), llvm::InstCombinerImpl::sinkNotIntoOtherHandOfLogicalOp(), and llvm::InstCombinerImpl::visitXor().

getNSWAdd()

static Constant * llvm::ConstantExpr::getNSWAdd ( Constant *  C1, Constant *  C2  )

inlinestatic

Definition at line 1068 of file Constants.h.

Referenced by LLVMConstNSWAdd().

getNSWMul()

static Constant * llvm::ConstantExpr::getNSWMul ( Constant *  C1, Constant *  C2  )

inlinestatic

Definition at line 1084 of file Constants.h.

Referenced by LLVMConstNSWMul().

getNSWNeg()

static Constant * llvm::ConstantExpr::getNSWNeg ( Constant *  C )

inlinestatic

Definition at line 1065 of file Constants.h.

References llvm::CallingConv::C.

Referenced by LLVMConstNSWNeg().

getNSWShl()

static Constant * llvm::ConstantExpr::getNSWShl ( Constant *  C1, Constant *  C2  )

inlinestatic

Definition at line 1092 of file Constants.h.

getNSWSub()

static Constant * llvm::ConstantExpr::getNSWSub ( Constant *  C1, Constant *  C2  )

inlinestatic

Definition at line 1076 of file Constants.h.

Referenced by LLVMConstNSWSub().

getNUWAdd()

static Constant * llvm::ConstantExpr::getNUWAdd ( Constant *  C1, Constant *  C2  )

inlinestatic

Definition at line 1072 of file Constants.h.

Referenced by LLVMConstNUWAdd().

getNUWMul()

static Constant * llvm::ConstantExpr::getNUWMul ( Constant *  C1, Constant *  C2  )

inlinestatic

Definition at line 1088 of file Constants.h.

Referenced by LLVMConstNUWMul().

getNUWNeg()

static Constant * llvm::ConstantExpr::getNUWNeg ( Constant *  C )

inlinestatic

Definition at line 1066 of file Constants.h.

References llvm::CallingConv::C.

Referenced by LLVMConstNUWNeg().

getNUWShl()

static Constant * llvm::ConstantExpr::getNUWShl ( Constant *  C1, Constant *  C2  )

inlinestatic

Definition at line 1096 of file Constants.h.

Referenced by llvm::InstCombinerImpl::foldICmpAndConstConst().

getNUWSub()

static Constant * llvm::ConstantExpr::getNUWSub ( Constant *  C1, Constant *  C2  )

inlinestatic

Definition at line 1080 of file Constants.h.

Referenced by LLVMConstNUWSub().

getOpcode()

unsigned llvm::ConstantExpr::getOpcode ( ) const

inline

Return the opcode at the root of this constant expression.

Definition at line 1278 of file Constants.h.

Referenced by evaluateFCmpRelation(), evaluateICmpRelation(), getAsInstruction(), getOpcodeName(), getWithOperands(), isCast(), and isCompare().

getOpcodeName()

const char * ConstantExpr::getOpcodeName

(

)

const

Return a string representation for an opcode.

Definition at line 2737 of file Constants.cpp.

References getOpcode(), and llvm::Instruction::getOpcodeName().

getOr()

Constant * ConstantExpr::getOr ( Constant *  C1, Constant *  C2  )

static

Definition at line 2618 of file Constants.cpp.

References get().

Referenced by ExtractConstantBytes(), llvm::InstCombinerImpl::foldICmpAndConstConst(), LLVMConstOr(), and llvm::InstCombinerImpl::visitTrunc().

getPointerBitCastOrAddrSpaceCast()

Constant * ConstantExpr::getPointerBitCastOrAddrSpaceCast ( Constant *  C, Type *  Ty  )

static

Create a BitCast or AddrSpaceCast for a pointer type depending on the address space.

Parameters

C	The constant to addrspacecast or bitcast
Ty	The type to bitcast or addrspacecast C to

Definition at line 2040 of file Constants.cpp.

References assert(), getAddrSpaceCast(), getBitCast(), llvm::Type::getPointerAddressSpace(), llvm::Value::getType(), and llvm::Type::isPtrOrPtrVectorTy().

Referenced by appendToUsedList(), llvm::TargetFolder::CreatePointerBitCastOrAddrSpaceCast(), llvm::ConstantFolder::CreatePointerBitCastOrAddrSpaceCast(), llvm::embedBitcodeInModule(), llvm::OpenMPIRBuilder::emitOffloadingEntry(), llvm::InstCombinerImpl::foldGEPICmp(), llvm::OpenMPIRBuilder::getOrCreateIdent(), and setUsedInitializer().

getPointerCast()

Constant * ConstantExpr::getPointerCast ( Constant *  C, Type *  Ty  )

static

Create a BitCast, AddrSpaceCast, or a PtrToInt cast constant expression.

Parameters

C	The pointer value to be casted (operand 0)
Ty	The type to which cast should be made

Definition at line 2025 of file Constants.cpp.

References assert(), getAddrSpaceCast(), getBitCast(), llvm::Type::getPointerAddressSpace(), getPtrToInt(), llvm::Value::getType(), llvm::Type::isIntOrIntVectorTy(), and llvm::Type::isPtrOrPtrVectorTy().

Referenced by appendToGlobalArray(), llvm::ConstantFoldCastInstruction(), llvm::TargetFolder::CreatePointerCast(), llvm::ConstantFolder::CreatePointerCast(), llvm::OpenMPIRBuilder::getOrCreateSrcLocStr(), llvm::AA::getWithType(), LLVMConstPointerCast(), setCoroInfo(), and llvm::UpgradeIntrinsicCall().

getPredicate()

unsigned ConstantExpr::getPredicate

(

)

const

Return the ICMP or FCMP predicate value.

Assert if this is not an ICMP or FCMP constant expression.

Definition at line 1438 of file Constants.cpp.

Referenced by getAsInstruction(), and getWithOperands().

getPtrToInt()

Constant * ConstantExpr::getPtrToInt ( Constant *  C, Type *  Ty, bool  OnlyIfReduced = false  )

static

Definition at line 2185 of file Constants.cpp.

References assert(), llvm::CallingConv::C, getFoldedCast(), and llvm::Type::isIntOrIntVectorTy().

Referenced by BuildConstantFromSCEV(), llvm::ConstantFoldCastOperand(), llvm::copyNonnullMetadata(), createRelLookupTable(), getAlignOf(), getCast(), llvm::Value::getPointerAlignment(), getPointerCast(), getSizeOf(), LLVMConstPtrToInt(), and llvm::UpgradeBitCastExpr().

getSExt()

Constant * ConstantExpr::getSExt ( Constant *  C, Type *  Ty, bool  OnlyIfReduced = false  )

static

Definition at line 2089 of file Constants.cpp.

References assert(), llvm::CallingConv::C, getFoldedCast(), llvm::Type::getScalarSizeInBits(), and llvm::Type::isIntOrIntVectorTy().

Referenced by BuildConstantFromSCEV(), llvm::ConstantFoldGetElementPtr(), foldLogicCastConstant(), foldNoWrapAdd(), getCast(), getSExtOrBitCast(), getSExtOrTrunc(), llvm::ScalarEvolution::getSignExtendExprImpl(), llvm::GCNTTIImpl::instCombineIntrinsic(), LLVMConstSExt(), llvm::InstCombinerImpl::visitCallInst(), and llvm::InstCombinerImpl::visitSExt().

getSExtOrBitCast()

Constant * ConstantExpr::getSExtOrBitCast ( Constant *  C, Type *  Ty  )

static

Parameters

C	The constant to sext or bitcast
Ty	The type to sext or bitcast C to

Definition at line 2002 of file Constants.cpp.

References llvm::CallingConv::C, getBitCast(), llvm::Type::getScalarSizeInBits(), and getSExt().

Referenced by llvm::TargetFolder::CreateSExtOrBitCast(), llvm::ConstantFolder::CreateSExtOrBitCast(), foldGEPOfGEP(), and LLVMConstSExtOrBitCast().

getSExtOrTrunc()

Constant * ConstantExpr::getSExtOrTrunc ( Constant *  C, Type *  Ty  )

static

Create either an sext, trunc or nothing, depending on whether Ty is wider, narrower or the same as C->getType().

This only works with integer or vector of integer types.

Definition at line 2014 of file Constants.cpp.

References assert(), llvm::CallingConv::C, llvm::Type::getScalarSizeInBits(), getSExt(), getTrunc(), and llvm::Type::isIntOrIntVectorTy().

Referenced by getAsConstantIndexedAddress().

getShl()

Constant * ConstantExpr::getShl ( Constant *  C1, Constant *  C2, bool  HasNUW = false, bool  HasNSW = false  )

static

Definition at line 2626 of file Constants.cpp.

References Flags, get(), llvm::OverflowingBinaryOperator::NoSignedWrap, and llvm::OverflowingBinaryOperator::NoUnsignedWrap.

Referenced by ConvertShiftToMul(), dropRedundantMaskingOfLeftShiftInput(), getAlternateBinop(), getBinOpsForFactorization(), LLVMConstShl(), llvm::InstCombinerImpl::SimplifyDemandedUseBits(), llvm::InstCombinerImpl::visitMul(), llvm::InstCombinerImpl::visitShl(), and llvm::InstCombinerImpl::visitTrunc().

getShuffleMask()

ArrayRef< int > ConstantExpr::getShuffleMask

(

)

const

Assert that this is a shufflevector and return the mask.

See class ShuffleVectorInst for a description of the mask representation.

Definition at line 1442 of file Constants.cpp.

Referenced by getAsInstruction(), and getWithOperands().

getShuffleMaskForBitcode()

Constant * ConstantExpr::getShuffleMaskForBitcode

(

)

const

Assert that this is a shufflevector and return the mask.

TODO: This is a temporary hack until we update the bitcode format for shufflevector.

Definition at line 1446 of file Constants.cpp.

getShuffleVector()

Constant * ConstantExpr::getShuffleVector ( Constant *  V1, Constant *  V2, ArrayRef< int >  Mask, Type *  OnlyIfReducedTy = nullptr  )

static

Definition at line 2555 of file Constants.cpp.

References assert(), llvm::ConstantFoldShuffleVectorInstruction(), llvm::LLVMContextImpl::ExprConstants, llvm::VectorType::get(), llvm::Type::getContext(), llvm::Value::getType(), llvm::ShuffleVectorInst::isValidOperands(), and llvm::LLVMContext::pImpl.

Referenced by evaluateInDifferentElementOrder(), llvm::InstCombinerImpl::foldSelectShuffle(), foldSelectShuffleWith1Binop(), llvm::TargetFolder::FoldShuffleVector(), llvm::ConstantFolder::FoldShuffleVector(), llvm::ConstantVector::getSplat(), getWithOperands(), LLVMConstShuffleVector(), and simplifyShuffleVectorInst().

getSIToFP()

Constant * ConstantExpr::getSIToFP ( Constant *  C, Type *  Ty, bool  OnlyIfReduced = false  )

static

Definition at line 2152 of file Constants.cpp.

References assert(), llvm::CallingConv::C, getFoldedCast(), and llvm::Type::isFPOrFPVectorTy().

Referenced by llvm::InstCombinerImpl::foldFCmpIntToFPConst(), getCast(), LLVMConstSIToFP(), lookThroughCast(), and llvm::InstCombinerImpl::visitFAdd().

getSizeOf()

Constant * ConstantExpr::getSizeOf ( Type *  Ty )

static

getSizeOf constant expr - computes the (alloc) size of a type (in address-units, not bits) in a target independent way (Note: the return type is an i64).

Definition at line 2349 of file Constants.cpp.

References GEP, llvm::ConstantInt::get(), llvm::Type::getContext(), getGetElementPtr(), llvm::Type::getInt32Ty(), llvm::Type::getInt64Ty(), llvm::Constant::getNullValue(), getPtrToInt(), and llvm::PointerType::getUnqual().

Referenced by llvm::IRBuilderBase::CreatePtrDiff(), LLVMBuildArrayMalloc(), LLVMBuildMalloc(), and LLVMSizeOf().

getSub()

Constant * ConstantExpr::getSub ( Constant *  C1, Constant *  C2, bool  HasNUW = false, bool  HasNSW = false  )

static

Definition at line 2600 of file Constants.cpp.

References Flags, get(), llvm::OverflowingBinaryOperator::NoSignedWrap, and llvm::OverflowingBinaryOperator::NoUnsignedWrap.

Referenced by llvm::InstCombinerImpl::commonShiftTransforms(), llvm::ConstantFoldCastOperand(), createRelLookupTable(), dropRedundantMaskingOfLeftShiftInput(), llvm::InstCombinerImpl::foldICmpBinOp(), llvm::InstCombinerImpl::foldICmpBinOpEqualityWithConstant(), llvm::InstCombinerImpl::foldICmpSubConstant(), getNeg(), LLVMConstSub(), llvm::InstCombiner::SubOne(), llvm::InstCombinerImpl::visitAnd(), llvm::InstCombinerImpl::visitCallInst(), llvm::InstCombinerImpl::visitSExt(), llvm::InstCombinerImpl::visitSub(), and llvm::InstCombinerImpl::visitSwitchInst().

getTrunc()

Constant * ConstantExpr::getTrunc ( Constant *  C, Type *  Ty, bool  OnlyIfReduced = false  )

static

Definition at line 2075 of file Constants.cpp.

References assert(), llvm::CallingConv::C, getFoldedCast(), llvm::Type::getScalarSizeInBits(), and llvm::Type::isIntOrIntVectorTy().

Referenced by BuildConstantFromSCEV(), collectInsertionElements(), llvm::ConstantFoldCompareInstruction(), createRelLookupTable(), dropRedundantMaskingOfLeftShiftInput(), ExtractConstantBytes(), llvm::InstCombinerImpl::foldICmpWithZextOrSext(), foldLogicCastConstant(), llvm::InstCombinerImpl::foldPHIArgZextsIntoPHI(), getCast(), getSExtOrTrunc(), llvm::ScalarEvolution::getTruncateExpr(), getTruncOrBitCast(), llvm::AA::getWithType(), LLVMConstTrunc(), lookThroughCast(), narrowUDivURem(), simplifyICmpInst(), llvm::InstCombinerImpl::visitCallInst(), llvm::InstCombinerImpl::visitSDiv(), and llvm::InstCombinerImpl::visitTrunc().

getTruncOrBitCast()

Constant * ConstantExpr::getTruncOrBitCast ( Constant *  C, Type *  Ty  )

static

Parameters

C	The constant to trunc or bitcast
Ty	The type to trunc or bitcast C to

Definition at line 2008 of file Constants.cpp.

References llvm::CallingConv::C, getBitCast(), llvm::Type::getScalarSizeInBits(), and getTrunc().

Referenced by llvm::TargetFolder::CreateTruncOrBitCast(), llvm::ConstantFolder::CreateTruncOrBitCast(), LLVMBuildArrayMalloc(), LLVMBuildMalloc(), and LLVMConstTruncOrBitCast().

getUIToFP()

Constant * ConstantExpr::getUIToFP ( Constant *  C, Type *  Ty, bool  OnlyIfReduced = false  )

static

Definition at line 2141 of file Constants.cpp.

References assert(), llvm::CallingConv::C, getFoldedCast(), and llvm::Type::isFPOrFPVectorTy().

Referenced by llvm::InstCombinerImpl::foldFCmpIntToFPConst(), getCast(), LLVMConstUIToFP(), and lookThroughCast().

getWithOperands() [1/2]

Constant * llvm::ConstantExpr::getWithOperands ( ArrayRef< Constant * >  Ops ) const

inline

This returns the current constant expression with the operands replaced with the specified values.

The specified array must have the same number of operands as our current one.

Definition at line 1300 of file Constants.h.

References getType().

getWithOperands() [2/2]

Constant * ConstantExpr::getWithOperands	(	ArrayRef< Constant * >	Ops,
		Type *	Ty,
		bool	OnlyIfReduced = false,
		Type *	SrcTy = nullptr
	)		const

Get the current expression with the operands replaced.

Return the current constant expression with the operands replaced with Ops and the type with Ty. The new operands must have the same number as the current ones.

If OnlyIfReduced is true, nullptr will be returned unless something gets constant-folded, the type changes, or the expression is otherwise canonicalized. This parameter should almost always be false.

Definition at line 1450 of file Constants.cpp.

References assert(), llvm::ArrayRef< T >::begin(), llvm::ArrayRef< T >::end(), get(), getCast(), getCompare(), getExtractElement(), getGetElementPtr(), getInsertElement(), llvm::User::getNumOperands(), getOpcode(), llvm::User::getOperand(), getPredicate(), getShuffleMask(), getShuffleVector(), llvm::Value::getType(), llvm::User::op_begin(), llvm::ArrayRef< T >::size(), llvm::ArrayRef< T >::slice(), and llvm::Value::SubclassOptionalData.

getXor()

Constant * ConstantExpr::getXor ( Constant *  C1, Constant *  C2  )

static

Definition at line 2622 of file Constants.cpp.

References get().

Referenced by llvm::ConstantFoldBinaryInstruction(), llvm::ConstantFoldCompareInstruction(), llvm::InstCombinerImpl::foldICmpBinOpEqualityWithConstant(), LLVMConstXor(), and llvm::InstCombinerImpl::visitXor().

getZExt()

Constant * ConstantExpr::getZExt ( Constant *  C, Type *  Ty, bool  OnlyIfReduced = false  )

static

Definition at line 2103 of file Constants.cpp.

References assert(), llvm::CallingConv::C, getFoldedCast(), llvm::Type::getScalarSizeInBits(), and llvm::Type::isIntOrIntVectorTy().

Referenced by BuildConstantFromSCEV(), dropRedundantMaskingOfLeftShiftInput(), foldLogicCastConstant(), foldNoWrapAdd(), llvm::InstCombinerImpl::foldPHIArgZextsIntoPHI(), getCast(), llvm::ScalarEvolution::getZeroExtendExprImpl(), getZExtOrBitCast(), LLVMConstZExt(), narrowUDivURem(), llvm::InstCombinerImpl::visitCallInst(), and llvm::InstCombinerImpl::visitZExt().

getZExtOrBitCast()

Constant * ConstantExpr::getZExtOrBitCast ( Constant *  C, Type *  Ty  )

static

Parameters

C	The constant to zext or bitcast
Ty	The type to zext or bitcast C to

Definition at line 1996 of file Constants.cpp.

References llvm::CallingConv::C, getBitCast(), llvm::Type::getScalarSizeInBits(), and getZExt().

Referenced by llvm::TargetFolder::CreateZExtOrBitCast(), llvm::ConstantFolder::CreateZExtOrBitCast(), foldShiftIntoShiftInAnotherHandOfAndInICmp(), LLVMConstZExtOrBitCast(), and llvm::InstCombinerImpl::reassociateShiftAmtsOfTwoSameDirectionShifts().

isCast()

bool ConstantExpr::isCast

(

)

const

Return true if this is a convert constant expression.

Definition at line 1430 of file Constants.cpp.

References getOpcode(), and llvm::Instruction::isCast().

isCompare()

bool ConstantExpr::isCompare

(

)

const

Return true if this is a compare constant expression.

Definition at line 1434 of file Constants.cpp.

References getOpcode().

isDesirableBinOp()

bool ConstantExpr::isDesirableBinOp ( unsigned  Opcode )

static

Whether creating a constant expression for this binary operator is desirable.

Definition at line 2295 of file Constants.cpp.

References llvm_unreachable.

Referenced by llvm::ConstantFoldBinaryInstruction(), llvm::ConstantFoldBinaryOpOperands(), llvm::TargetFolder::FoldBinOp(), llvm::ConstantFolder::FoldBinOp(), llvm::TargetFolder::FoldExactBinOp(), llvm::ConstantFolder::FoldExactBinOp(), llvm::TargetFolder::FoldNoWrapBinOp(), and llvm::ConstantFolder::FoldNoWrapBinOp().

isSupportedBinOp()

bool ConstantExpr::isSupportedBinOp ( unsigned  Opcode )

static

Whether creating a constant expression for this binary operator is supported.

Definition at line 2322 of file Constants.cpp.

References llvm_unreachable.

Referenced by get(), and isConstExprSupported().

isSupportedGetElementPtr()

static bool llvm::ConstantExpr::isSupportedGetElementPtr ( const Type *  SrcElemTy )

inlinestatic

Whether creating a constant expression for this getelementptr type is supported.

Definition at line 1337 of file Constants.h.

References llvm::Type::isScalableTy().

Referenced by llvm::TargetFolder::FoldGEP(), llvm::ConstantFolder::FoldGEP(), getGetElementPtr(), isConstExprSupported(), and simplifyGEPInst().

Friends And Related Function Documentation

Constant

friend class Constant

friend

Definition at line 999 of file Constants.h.

ConstantExprKeyType

friend struct ConstantExprKeyType

friend

Definition at line 998 of file Constants.h.

---

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

• include/llvm/IR/Constants.h
• lib/IR/Constants.cpp