Integer representation type. More...

#include <DerivedTypes.h>

Inheritance diagram for llvm::IntegerType:

Collaboration diagram for llvm::IntegerType:

Public Types
enum	{ MIN_INT_BITS = 1, MAX_INT_BITS = (1<<23)-1 }
	This enum is just used to hold constants we need for IntegerType. More...

Public Types inherited from llvm::Type
enum	TypeID { VoidTyID = 0, HalfTyID, FloatTyID, DoubleTyID, X86_FP80TyID, FP128TyID, PPC_FP128TyID, LabelTyID, MetadataTyID, X86_MMXTyID, IntegerTyID, FunctionTyID, StructTyID, ArrayTyID, PointerTyID, VectorTyID, NumTypeIDs, LastPrimitiveTyID = X86_MMXTyID, FirstDerivedTyID = IntegerTyID }

typedef Type const	subtype_iterator

typedef std::reverse_iterator < subtype_iterator >	subtype_reverse_iterator

Public Member Functions
unsigned	getBitWidth () const
	Get the number of bits in this IntegerType. More...

uint64_t	getBitMask () const

uint64_t	getSignBit () const

APInt	getMask () const
	Get a bit mask for this type. More...

bool	isPowerOf2ByteWidth () const
	Is this a power-of-2 byte-width IntegerType ? More...

Public Member Functions inherited from llvm::Type
void	print (raw_ostream &O) const

void	dump () const

LLVMContext &	getContext () const
	getContext - Return the LLVMContext in which this type was uniqued. More...

TypeID	getTypeID () const

bool	isVoidTy () const
	isVoidTy - Return true if this is 'void'. More...

bool	isHalfTy () const
	isHalfTy - Return true if this is 'half', a 16-bit IEEE fp type. More...

bool	isFloatTy () const
	isFloatTy - Return true if this is 'float', a 32-bit IEEE fp type. More...

bool	isDoubleTy () const
	isDoubleTy - Return true if this is 'double', a 64-bit IEEE fp type. More...

bool	isX86_FP80Ty () const
	isX86_FP80Ty - Return true if this is x86 long double. More...

bool	isFP128Ty () const
	isFP128Ty - Return true if this is 'fp128'. More...

bool	isPPC_FP128Ty () const
	isPPC_FP128Ty - Return true if this is powerpc long double. More...

bool	isFloatingPointTy () const

const fltSemantics &	getFltSemantics () const

bool	isX86_MMXTy () const
	isX86_MMXTy - Return true if this is X86 MMX. More...

bool	isFPOrFPVectorTy () const

bool	isLabelTy () const
	isLabelTy - Return true if this is 'label'. More...

bool	isMetadataTy () const
	isMetadataTy - Return true if this is 'metadata'. More...

bool	isIntegerTy () const

bool	isIntegerTy (unsigned Bitwidth) const
	isIntegerTy - Return true if this is an IntegerType of the given width. More...

bool	isIntOrIntVectorTy () const

bool	isFunctionTy () const

bool	isStructTy () const

bool	isArrayTy () const

bool	isPointerTy () const

bool	isPtrOrPtrVectorTy () const

bool	isVectorTy () const

bool	canLosslesslyBitCastTo (Type *Ty) const
	Determine if this type could be losslessly bitcast to Ty. More...

bool	isEmptyTy () const

bool	isPrimitiveType () const

bool	isDerivedType () const

bool	isFirstClassType () const

bool	isSingleValueType () const

bool	isAggregateType () const

bool	isSized () const

unsigned	getPrimitiveSizeInBits () const

unsigned	getScalarSizeInBits ()

int	getFPMantissaWidth () const

const Type *	getScalarType () const

Type *	getScalarType ()

subtype_iterator	subtype_begin () const

subtype_iterator	subtype_end () const

subtype_reverse_iterator	subtype_rbegin () const

subtype_reverse_iterator	subtype_rend () const

Type *	getContainedType (unsigned i) const

unsigned	getNumContainedTypes () const

unsigned	getIntegerBitWidth () const

Type *	getFunctionParamType (unsigned i) const

unsigned	getFunctionNumParams () const

bool	isFunctionVarArg () const

StringRef	getStructName () const

unsigned	getStructNumElements () const

Type *	getStructElementType (unsigned N) const

Type *	getSequentialElementType () const

uint64_t	getArrayNumElements () const

Type *	getArrayElementType () const

unsigned	getVectorNumElements () const

Type *	getVectorElementType () const

Type *	getPointerElementType () const

unsigned	getPointerAddressSpace () const
	Get the address space of this pointer or pointer vector type. More...

PointerType *	getPointerTo (unsigned AddrSpace=0)

Static Public Member Functions
static IntegerType *	get (LLVMContext &C, unsigned NumBits)
	Get or create an IntegerType instance. More...

static bool	classof (const Type *T)
	Methods for support type inquiry through isa, cast, and dyn_cast. More...

Static Public Member Functions inherited from llvm::Type
static Type *	getPrimitiveType (LLVMContext &C, TypeID IDNumber)
	getPrimitiveType - Return a type based on an identifier. More...

static Type *	getVoidTy (LLVMContext &C)

static Type *	getLabelTy (LLVMContext &C)

static Type *	getHalfTy (LLVMContext &C)

static Type *	getFloatTy (LLVMContext &C)

static Type *	getDoubleTy (LLVMContext &C)

static Type *	getMetadataTy (LLVMContext &C)

static Type *	getX86_FP80Ty (LLVMContext &C)

static Type *	getFP128Ty (LLVMContext &C)

static Type *	getPPC_FP128Ty (LLVMContext &C)

static Type *	getX86_MMXTy (LLVMContext &C)

static IntegerType *	getIntNTy (LLVMContext &C, unsigned N)

static IntegerType *	getInt1Ty (LLVMContext &C)

static IntegerType *	getInt8Ty (LLVMContext &C)

static IntegerType *	getInt16Ty (LLVMContext &C)

static IntegerType *	getInt32Ty (LLVMContext &C)

static IntegerType *	getInt64Ty (LLVMContext &C)

static PointerType *	getHalfPtrTy (LLVMContext &C, unsigned AS=0)

static PointerType *	getFloatPtrTy (LLVMContext &C, unsigned AS=0)

static PointerType *	getDoublePtrTy (LLVMContext &C, unsigned AS=0)

static PointerType *	getX86_FP80PtrTy (LLVMContext &C, unsigned AS=0)

static PointerType *	getFP128PtrTy (LLVMContext &C, unsigned AS=0)

static PointerType *	getPPC_FP128PtrTy (LLVMContext &C, unsigned AS=0)

static PointerType *	getX86_MMXPtrTy (LLVMContext &C, unsigned AS=0)

static PointerType *	getIntNPtrTy (LLVMContext &C, unsigned N, unsigned AS=0)

static PointerType *	getInt1PtrTy (LLVMContext &C, unsigned AS=0)

static PointerType *	getInt8PtrTy (LLVMContext &C, unsigned AS=0)

static PointerType *	getInt16PtrTy (LLVMContext &C, unsigned AS=0)

static PointerType *	getInt32PtrTy (LLVMContext &C, unsigned AS=0)

static PointerType *	getInt64PtrTy (LLVMContext &C, unsigned AS=0)

Protected Member Functions
	IntegerType (LLVMContext &C, unsigned NumBits)

Protected Member Functions inherited from llvm::Type
	Type (LLVMContext &C, TypeID tid)

	~Type ()

void	setTypeID (TypeID ID)

unsigned	getSubclassData () const

void	setSubclassData (unsigned val)

Friends
class	LLVMContextImpl

Additional Inherited Members
Protected Attributes inherited from llvm::Type
unsigned	NumContainedTys

Type const	ContainedTys

Detailed Description

Integer representation type.

Class to represent integer types. Note that this class is also used to represent the built-in integer types: Int1Ty, Int8Ty, Int16Ty, Int32Ty and Int64Ty.

Definition at line 37 of file DerivedTypes.h.

Member Enumeration Documentation

anonymous enum

This enum is just used to hold constants we need for IntegerType.

Enumerator
MIN_INT_BITS	Minimum number of bits that can be specified.
MAX_INT_BITS	Maximum number of bits that can be specified Note that bit width is stored in the Type classes SubclassData field which has 23 bits. This yields a maximum bit width of 8,388,607 bits.

Definition at line 46 of file DerivedTypes.h.

Constructor & Destructor Documentation

llvm::IntegerType::IntegerType	(	LLVMContext &	C,
		unsigned	NumBits
	)

inlineexplicitprotected

Definition at line 41 of file DerivedTypes.h.

References llvm::Type::setSubclassData().

Referenced by get().

Member Function Documentation

static bool llvm::IntegerType::classof ( const Type * T )

inlinestatic

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

Definition at line 88 of file DerivedTypes.h.

References llvm::Type::getTypeID(), and llvm::Type::IntegerTyID.

IntegerType * IntegerType::get	(	LLVMContext &	C,
		unsigned	NumBits
	)

static

Get or create an IntegerType instance.

This static method is the primary way of constructing an IntegerType. If an IntegerType with the same NumBits value was previously instantiated, that instance will be returned. Otherwise a new one will be created. Only one instance with a given NumBits value is ever created.

Definition at line 305 of file Type.cpp.

References llvm::Type::getInt16Ty(), llvm::Type::getInt1Ty(), llvm::Type::getInt32Ty(), llvm::Type::getInt64Ty(), llvm::Type::getInt8Ty(), IntegerType(), llvm::LLVMContextImpl::IntegerTypes, MAX_INT_BITS, MIN_INT_BITS, llvm::LLVMContext::pImpl, and llvm::LLVMContextImpl::TypeAllocator.

Referenced by BinomialCoefficient(), BitCastConstantVector(), llvm::bypassSlowDivision(), CanShareConstantPoolEntry(), CoerceAvailableValueToLoadType(), CollectInsertionElements(), llvm::ConstantFoldBinaryInstruction(), llvm::ConstantFoldCastInstruction(), llvm::ConstantFoldCompareInstruction(), llvm::ConstantFoldInsertElementInstruction(), llvm::ConstantFoldSelectInstruction(), llvm::ConstantFoldShuffleVectorInstruction(), llvm::MDBuilder::createRange(), llvm::MDBuilder::createTBAAScalarTypeNode(), llvm::MDBuilder::createTBAAStructNode(), llvm::MDBuilder::createTBAAStructTagNode(), llvm::MDBuilder::createTBAAStructTypeNode(), DecodeFixedType(), ExtractConstantBytes(), llvm::FastISel::FastEmit_ri_(), FoldBitCast(), llvm::ConstantInt::get(), llvm::TypeBuilder< types::i< num_bits >, cross >::get(), getAccessType(), llvm::VectorType::getExtendedElementVectorType(), getFoldedAlignOf(), getFoldedSizeOf(), llvm::VectorType::getInteger(), llvm::Type::getIntNTy(), llvm::DataLayout::getIntPtrType(), GetLoadValueForLoad(), GetMemInstValueForLoad(), llvm::MDNode::getMostGenericTBAA(), getPreStartForSignExtend(), llvm::ScalarEvolution::getSignExtendExpr(), GetStoreValueForLoad(), llvm::VectorType::getTruncatedElementVectorType(), llvm::EVT::getTypeForEVT(), llvm::ScalarEvolution::getUDivExpr(), llvm::ScalarEvolution::getZeroExtendExpr(), isAddRecSExtable(), isAddSExtable(), isMulSExtable(), LLVMIntTypeInContext(), llvm::TargetLowering::ParseConstraints(), ProcessUGT_ADDCST_ADD(), stripAndComputeConstantOffsets(), and llvm::InstCombiner::visitICmpInstWithInstAndIntCst().

uint64_t llvm::IntegerType::getBitMask ( ) const

inline

getBitMask - Return a bitmask with ones set for all of the bits that can be set by an unsigned version of this type. This is 0xFF for i8, 0xFFFF for i16, etc.

Definition at line 66 of file DerivedTypes.h.

References getBitWidth().

Referenced by insertFastDiv().

unsigned llvm::IntegerType::getBitWidth ( ) const

inline