#include <Constants.h>

Inheritance diagram for llvm::ConstantFP:

Collaboration diagram for llvm::ConstantFP:

Public Member Functions
const APFloat &	getValueAPF () const

bool	isZero () const
	isZero - Return true if the value is positive or negative zero. More...

bool	isNegative () const
	isNegative - Return true if the sign bit is set. More...

bool	isNaN () const
	isNaN - Return true if the value is a NaN. More...

bool	isExactlyValue (const APFloat &V) const

bool	isExactlyValue (double V) const

Public Member Functions inherited from llvm::Constant
bool	isNullValue () const

bool	isAllOnesValue () const

bool	isNegativeZeroValue () const

bool	isZeroValue () const
	Return true if the value is negative zero or null value. More...

bool	canTrap () const

bool	isThreadDependent () const
	isThreadDependent - Return true if the value can vary between threads. More...

bool	isConstantUsed () const

PossibleRelocationsTy	getRelocationInfo () const

Constant *	getAggregateElement (unsigned Elt) const

Constant *	getAggregateElement (Constant *Elt) const

Constant *	getSplatValue () const

const APInt &	getUniqueInteger () const

virtual void	destroyConstant ()

virtual void	replaceUsesOfWithOnConstant (Value , Value , Use *)

void	removeDeadConstantUsers () const

Public Member Functions inherited from llvm::User
	~User ()

void	operator delete (void *Usr)
	operator delete - free memory allocated for User and Use objects More...

void	operator delete (void *, unsigned)
	placement delete - required by std, but never called. More...

void	operator delete (void *, unsigned, bool)
	placement delete - required by std, but never called. More...

Value *	getOperand (unsigned i) const

void	setOperand (unsigned i, Value *Val)

const Use &	getOperandUse (unsigned i) const

Use &	getOperandUse (unsigned i)

unsigned	getNumOperands () const

op_iterator	op_begin ()

const_op_iterator	op_begin () const

op_iterator	op_end ()

const_op_iterator	op_end () const

value_op_iterator	value_op_begin ()

value_op_iterator	value_op_end ()

void	dropAllReferences ()

void	replaceUsesOfWith (Value From, Value To)

Public Member Functions inherited from llvm::Value
virtual	~Value ()

void	dump () const
	dump - Support for debugging, callable in GDB: V->dump() More...

void	print (raw_ostream &O, AssemblyAnnotationWriter *AAW=0) const

Type *	getType () const

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

void	setName (const Twine &Name)

void	takeName (Value *V)

void	replaceAllUsesWith (Value *V)

bool	use_empty () const

use_iterator	use_begin ()

const_use_iterator	use_begin () const

use_iterator	use_end ()

const_use_iterator	use_end () const

User *	use_back ()

const User *	use_back () const

bool	hasOneUse () const

bool	hasNUses (unsigned N) const

bool	hasNUsesOrMore (unsigned N) const

bool	isUsedInBasicBlock (const BasicBlock *BB) const

unsigned	getNumUses () const

void	addUse (Use &U)

unsigned	getValueID () const

unsigned	getRawSubclassOptionalData () const

void	clearSubclassOptionalData ()

bool	hasSameSubclassOptionalData (const Value *V) const

void	intersectOptionalDataWith (const Value *V)

bool	hasValueHandle () const

Value *	stripPointerCasts ()
	Strips off any unneeded pointer casts, all-zero GEPs and aliases from the specified value, returning the original uncasted value. More...

const Value *	stripPointerCasts () const

Value *	stripPointerCastsNoFollowAliases ()
	Strips off any unneeded pointer casts and all-zero GEPs from the specified value, returning the original uncasted value. More...

const Value *	stripPointerCastsNoFollowAliases () const

Value *	stripInBoundsConstantOffsets ()
	Strips off unneeded pointer casts and all-constant GEPs from the specified value, returning the original pointer value. More...

const Value *	stripInBoundsConstantOffsets () const

Value *	stripAndAccumulateInBoundsConstantOffsets (const DataLayout &DL, APInt &Offset)
	Strips like `stripInBoundsConstantOffsets` but also accumulates the constant offset stripped. More...

const Value *	stripAndAccumulateInBoundsConstantOffsets (const DataLayout &DL, APInt &Offset) const

Value *	stripInBoundsOffsets ()
	Strips off unneeded pointer casts and any in-bounds offsets from the specified value, returning the original pointer value. More...

const Value *	stripInBoundsOffsets () const

bool	isDereferenceablePointer () const

Value *	DoPHITranslation (const BasicBlock CurBB, const BasicBlock PredBB)

const Value *	DoPHITranslation (const BasicBlock CurBB, const BasicBlock PredBB) const

void	mutateType (Type *Ty)

Static Public Member Functions
static Constant *	getZeroValueForNegation (Type *Ty)

static Constant *	get (Type *Ty, double V)

static Constant *	get (Type *Ty, StringRef Str)

static ConstantFP *	get (LLVMContext &Context, const APFloat &V)

static ConstantFP *	getNegativeZero (Type *Ty)

static ConstantFP *	getInfinity (Type *Ty, bool Negative=false)

static bool	isValueValidForType (Type *Ty, const APFloat &V)
	isValueValidForType - return true if Ty is big enough to represent V. More...

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

Static Public Member Functions inherited from llvm::Constant
static bool	classof (const Value *V)

static Constant *	getNullValue (Type *Ty)

static Constant *	getAllOnesValue (Type *Ty)
	Get the all ones value. More...

static Constant *	getIntegerValue (Type *Ty, const APInt &V)

Static Public Member Functions inherited from llvm::User
static bool	classof (const Value *V)

Protected Member Functions
	ConstantFP (Type *Ty, const APFloat &V)

void *	operator new (size_t s)

Protected Member Functions inherited from llvm::Constant
	Constant (Type ty, ValueTy vty, Use Ops, unsigned NumOps)

void	destroyConstantImpl ()

Protected Member Functions inherited from llvm::User
void *	operator new (size_t s, unsigned Us)

	User (Type ty, unsigned vty, Use OpList, unsigned NumOps)

Use *	allocHungoffUses (unsigned) const

void	dropHungoffUses ()

template<int Idx>
Use &	Op ()

template<int Idx>
const Use &	Op () const

Protected Member Functions inherited from llvm::Value
virtual void	printCustom (raw_ostream &O) const

	Value (Type *Ty, unsigned scid)

unsigned short	getSubclassDataFromValue () const

void	setValueSubclassData (unsigned short D)

Friends
class	LLVMContextImpl

Additional Inherited Members
Public Types inherited from llvm::Constant
enum	PossibleRelocationsTy { NoRelocation = 0, LocalRelocation = 1, GlobalRelocations = 2 }

Public Types inherited from llvm::User
typedef Use *	op_iterator

typedef const Use *	const_op_iterator

Public Types inherited from llvm::Value
enum	ValueTy { ArgumentVal, BasicBlockVal, FunctionVal, GlobalAliasVal, GlobalVariableVal, UndefValueVal, BlockAddressVal, ConstantExprVal, ConstantAggregateZeroVal, ConstantDataArrayVal, ConstantDataVectorVal, ConstantIntVal, ConstantFPVal, ConstantArrayVal, ConstantStructVal, ConstantVectorVal, ConstantPointerNullVal, MDNodeVal, MDStringVal, InlineAsmVal, PseudoSourceValueVal, FixedStackPseudoSourceValueVal, InstructionVal, ConstantFirstVal = FunctionVal, ConstantLastVal = ConstantPointerNullVal }

typedef value_use_iterator< User >	use_iterator

typedef value_use_iterator < const User >	const_use_iterator

Static Public Attributes inherited from llvm::Value
static const unsigned	MaximumAlignment = 1u << 29

Static Protected Member Functions inherited from llvm::User
template<int Idx, typename U >
static Use &	OpFrom (const U *that)

Protected Attributes inherited from llvm::User
Use *	OperandList

unsigned	NumOperands

Protected Attributes inherited from llvm::Value
unsigned char	SubclassOptionalData: 7

Detailed Description

ConstantFP - Floating Point Values [float, double]

Definition at line 232 of file Constants.h.

Constructor & Destructor Documentation

ConstantFP::ConstantFP	(	Type *	Ty,
		const APFloat &	V
	)

protected

Definition at line 644 of file Constants.cpp.

References llvm::APFloat::getSemantics(), and TypeToFloatSemantics().

Member Function Documentation

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

inlinestatic

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

Definition at line 289 of file Constants.h.

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

Constant * ConstantFP::get	(	Type *	Ty,
		double	V
	)

static

get() - This returns a ConstantFP, or a vector containing a splat of a ConstantFP, for the specified value in the specified type. This should only be used for simple constant values like 2.0/1.0 etc, that are known-valid both as host double and as the target format.

get() - This returns a constant fp for the specified value in the specified type. This should only be used for simple constant values like 2.0/1.0 etc, that are known-valid both as double and as the target format.

Definition at line 557 of file Constants.cpp.

References llvm::CallingConv::C, llvm::APFloat::convert(), llvm::Type::getContext(), llvm::Type::getScalarType(), llvm::ConstantVector::getSplat(), llvm::APFloat::rmNearestTiesToEven, and TypeToFloatSemantics().

Referenced by llvm::X86TargetLowering::BuildFILD(), ConstantFoldBinaryFP(), llvm::ConstantFoldBinaryInstruction(), llvm::ConstantFoldCall(), llvm::ConstantFoldCastInstruction(), ConstantFoldFP(), llvm::MDBuilder::createFPMath(), CvtFDivConstToReciprocal(), FitsInFPType(), FoldBitCast(), llvm::Constant::getAllOnesValue(), llvm::SelectionDAG::getConstantFP(), llvm::ConstantDataSequential::getElementAsConstant(), getInfinity(), llvm::Constant::getNullValue(), LLVMConstReal(), LLVMConstRealOfString(), LLVMConstRealOfStringAndSize(), llvm::JIT::runFunction(), llvm::InstCombiner::visitCallInst(), and llvm::InstCombiner::visitFCmpInst().

Constant * ConstantFP::get	(	Type *	Ty,
		StringRef	Str
	)

static

Definition at line 574 of file Constants.cpp.

References llvm::CallingConv::C, llvm::Type::getContext(), llvm::Type::getScalarType(), llvm::ConstantVector::getSplat(), and TypeToFloatSemantics().

ConstantFP * ConstantFP::get	(	LLVMContext &	Context,
		const APFloat &	V
	)

static

Definition at line 610 of file Constants.cpp.

References llvm::LLVMContextImpl::FPConstants, llvm::Type::getDoubleTy(), llvm::Type::getFloatTy(), llvm::Type::getFP128Ty(), llvm::Type::getHalfTy(), llvm::Type::getPPC_FP128Ty(), llvm::APFloat::getSemantics(), llvm::Type::getX86_FP80Ty(), llvm::APFloat::IEEEdouble, llvm::APFloat::IEEEhalf, llvm::APFloat::IEEEquad, llvm::APFloat::IEEEsingle, llvm::LLVMContext::pImpl, llvm::APFloat::PPCDoubleDouble, and llvm::APFloat::x87DoubleExtended.

ConstantFP * ConstantFP::getInfinity	(	Type *	Ty,
		bool	Negative = `false`
	)

static

Definition at line 638 of file Constants.cpp.

References get(), llvm::Type::getContext(), llvm::APFloat::getInf(), and TypeToFloatSemantics().

ConstantFP * ConstantFP::getNegativeZero ( Type * Ty )

static

Definition at line 588 of file Constants.cpp.

References llvm::APFloat::changeSign(), llvm::Type::getContext(), llvm::Constant::getNullValue(), and getValueAPF().

Referenced by getZeroValueForNegation(), and llvm::InstCombiner::visitFMul().

const APFloat& llvm::ConstantFP::getValueAPF ( ) const

inline

Definition at line 263 of file Constants.h.

Referenced by llvm::CompileUnit::addConstantFPValue(), CvtFDivConstToReciprocal(), emitDebugValueComment(), emitGlobalConstantFP(), llvm::R600TargetLowering::EmitInstrWithCustomInserter(), FitsInFPType(), llvm::FPMathOperator::getFPAccuracy(), getNegativeZero(), llvm::HexagonLowerToMC(), isFMulOrFDivWithConstant(), isNormalFp(), llvm::AMDGPUMCInstLower::lower(), llvm::ARMAsmPrinter::lowerOperand(), llvm::InstCombiner::visitFMul(), and llvm::InstCombiner::visitSelectInst().

Constant * ConstantFP::getZeroValueForNegation ( Type * Ty )

static

Floating point negation must be implemented with f(x) = -0.0 - x. This method returns the negative zero constant for floating point or vector floating point types; for all other types, it returns the null value.

Definition at line 596 of file Constants.cpp.

References llvm::CallingConv::C, getNegativeZero(), llvm::Constant::getNullValue(), llvm::Type::getScalarType(), llvm::ConstantVector::getSplat(), and llvm::Type::isFloatingPointTy().

Referenced by llvm::BinaryOperator::CreateFNeg(), llvm::BinaryOperator::CreateNeg(), llvm::BinaryOperator::CreateNSWNeg(), llvm::BinaryOperator::CreateNUWNeg(), llvm::ConstantExpr::getFNeg(), and llvm::ConstantExpr::getNeg().

bool ConstantFP::isExactlyValue ( const APFloat & V ) const

isExactlyValue - We don't rely on operator== working on double values, as it returns true for things that are clearly not equal, like -0.0 and 0.0. As such, this method can be used to do an exact bit-for-bit comparison of two floating point values. The version with a double operand is retained because it's so convenient to write isExactlyValue(2.0), but please use it only for simple constants.

Definition at line 650 of file Constants.cpp.

References llvm::APFloat::bitwiseIsEqual().

Referenced by detectLog2OfHalf(), isExactlyValue(), llvm::SIInstrInfo::isInlineConstant(), and llvm::AArch64AsmPrinter::PrintAsmOperand().

bool llvm::ConstantFP::isExactlyValue ( double V ) const

inline

Definition at line 282 of file Constants.h.

References llvm::APFloat::convert(), llvm::APFloat::getSemantics(), isExactlyValue(), and llvm::APFloat::rmNearestTiesToEven.

bool llvm::ConstantFP::isNaN ( ) const

inline

isNaN - Return true if the value is a NaN.

Definition at line 272 of file Constants.h.

References llvm::APFloat::isNaN().