#include "llvm/ADT/APFloat.h"

Inheritance diagram for llvm::APFloat:

Public Member Functions
	APFloat (const fltSemantics &Semantics)
LLVM_ABI	APFloat (const fltSemantics &Semantics, StringRef S)
	APFloat (const fltSemantics &Semantics, integerPart I)
template<typename T, typename = std::enable_if_t<std::is_floating_point<T>::value>>
	APFloat (const fltSemantics &Semantics, T V)=delete
	APFloat (const fltSemantics &Semantics, uninitializedTag)
	APFloat (const fltSemantics &Semantics, const APInt &I)
	APFloat (double d)
	APFloat (float f)
	APFloat (const APFloat &RHS)=default
	APFloat (APFloat &&RHS)=default
	~APFloat ()=default
bool	needsCleanup () const
LLVM_ABI void	Profile (FoldingSetNodeID &NID) const
	Used to insert APFloat objects, or objects that contain APFloat objects, into FoldingSets.
opStatus	add (const APFloat &RHS, roundingMode RM)
opStatus	subtract (const APFloat &RHS, roundingMode RM)
opStatus	multiply (const APFloat &RHS, roundingMode RM)
opStatus	divide (const APFloat &RHS, roundingMode RM)
opStatus	remainder (const APFloat &RHS)
opStatus	mod (const APFloat &RHS)
opStatus	fusedMultiplyAdd (const APFloat &Multiplicand, const APFloat &Addend, roundingMode RM)
opStatus	roundToIntegral (roundingMode RM)
opStatus	next (bool nextDown)
APFloat	operator- () const
	Negate an APFloat.
APFloat	operator+ (const APFloat &RHS) const
	Add two APFloats, rounding ties to the nearest even.
APFloat	operator- (const APFloat &RHS) const
	Subtract two APFloats, rounding ties to the nearest even.
APFloat	operator* (const APFloat &RHS) const
	Multiply two APFloats, rounding ties to the nearest even.
APFloat	operator/ (const APFloat &RHS) const
	Divide the first APFloat by the second, rounding ties to the nearest even.
void	changeSign ()
void	clearSign ()
void	copySign (const APFloat &RHS)
APFloat	makeQuiet () const
	Assuming this is an IEEE-754 NaN value, quiet its signaling bit.
LLVM_ABI opStatus	convert (const fltSemantics &ToSemantics, roundingMode RM, bool *losesInfo)
opStatus	convertToInteger (MutableArrayRef< integerPart > Input, unsigned int Width, bool IsSigned, roundingMode RM, bool *IsExact) const
LLVM_ABI opStatus	convertToInteger (APSInt &Result, roundingMode RM, bool *IsExact) const
opStatus	convertFromAPInt (const APInt &Input, bool IsSigned, roundingMode RM)
LLVM_ABI Expected< opStatus >	convertFromString (StringRef, roundingMode)
	Fill this APFloat with the result of a string conversion.
APInt	bitcastToAPInt () const
LLVM_ABI double	convertToDouble () const
	Converts this APFloat to host double value.
LLVM_ABI float	convertToFloat () const
	Converts this APFloat to host float value.
bool	operator== (const APFloat &RHS) const
bool	operator!= (const APFloat &RHS) const
bool	operator< (const APFloat &RHS) const
bool	operator> (const APFloat &RHS) const
bool	operator<= (const APFloat &RHS) const
bool	operator>= (const APFloat &RHS) const
cmpResult	compare (const APFloat &RHS) const
cmpResult	compareAbsoluteValue (const APFloat &RHS) const
bool	bitwiseIsEqual (const APFloat &RHS) const
bool	isExactlyValue (double V) const
	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.
unsigned int	convertToHexString (char *DST, unsigned int HexDigits, bool UpperCase, roundingMode RM) const
bool	isZero () const
bool	isInfinity () const
bool	isNaN () const
bool	isNegative () const
bool	isDenormal () const
bool	isSignaling () const
bool	isNormal () const
bool	isFinite () const
fltCategory	getCategory () const
const fltSemantics &	getSemantics () const
bool	isNonZero () const
bool	isFiniteNonZero () const
bool	isPosZero () const
bool	isNegZero () const
bool	isPosInfinity () const
bool	isNegInfinity () const
bool	isSmallest () const
bool	isLargest () const
bool	isInteger () const
bool	isSmallestNormalized () const
APInt	getNaNPayload () const
	If the value is a NaN value, return an integer containing the payload of this value.
LLVM_ABI FPClassTest	classify () const
	Return the FPClassTest which will return true for the value.
APFloat &	operator= (const APFloat &RHS)=default
APFloat &	operator= (APFloat &&RHS)=default
void	toString (SmallVectorImpl< char > &Str, unsigned FormatPrecision=0, unsigned FormatMaxPadding=3, bool TruncateZero=true) const
LLVM_ABI void	print (raw_ostream &) const
LLVM_DUMP_METHOD void	dump () const
LLVM_ABI bool	getExactInverse (APFloat *Inv) const
	If this value is normal and has an exact, normal, multiplicative inverse, store it in inv and return true.
LLVM_READONLY int	getExactLog2Abs () const
LLVM_READONLY int	getExactLog2 () const
LLVM_READONLY bool	isPowerOf2 (int N) const
LLVM_READONLY bool	isNegPowerOf2 (int N) const
LLVM_READONLY bool	isOne () const
LLVM_READONLY bool	isMinusOne () const

Static Public Member Functions
static APFloat	getZero (const fltSemantics &Sem, bool Negative=false)
	Factory for Positive and Negative Zero.
static APFloat	getOne (const fltSemantics &Sem, bool Negative=false)
	Factory for Positive and Negative One.
static APFloat	getInf (const fltSemantics &Sem, bool Negative=false)
	Factory for Positive and Negative Infinity.
static APFloat	getNaN (const fltSemantics &Sem, bool Negative=false, uint64_t payload=0)
	Factory for NaN values.
static APFloat	getQNaN (const fltSemantics &Sem, bool Negative=false, const APInt *payload=nullptr)
	Factory for QNaN values.
static APFloat	getSNaN (const fltSemantics &Sem, bool Negative=false, const APInt *payload=nullptr)
	Factory for SNaN values.
static APFloat	getLargest (const fltSemantics &Sem, bool Negative=false)
	Returns the largest finite number in the given semantics.
static APFloat	getSmallest (const fltSemantics &Sem, bool Negative=false)
	Returns the smallest (by magnitude) finite number in the given semantics.
static APFloat	getSmallestNormalized (const fltSemantics &Sem, bool Negative=false)
	Returns the smallest (by magnitude) normalized finite number in the given semantics.
static LLVM_ABI APFloat	getAllOnesValue (const fltSemantics &Semantics)
	Returns a float which is bitcasted from an all one value int.
static bool	hasSignificand (const fltSemantics &Sem)
	Returns true if the given semantics has actual significand.
static APFloat	copySign (APFloat Value, const APFloat &Sign)
	A static helper to produce a copy of an APFloat value with its sign copied from some other APFloat.
Static Public Member Functions inherited from llvm::APFloatBase
static LLVM_ABI unsigned int	semanticsPrecision (const fltSemantics &)
static LLVM_ABI ExponentType	semanticsMinExponent (const fltSemantics &)
static LLVM_ABI ExponentType	semanticsMaxExponent (const fltSemantics &)
static LLVM_ABI unsigned int	semanticsSizeInBits (const fltSemantics &)
static LLVM_ABI unsigned int	semanticsIntSizeInBits (const fltSemantics &, bool)
static LLVM_ABI bool	semanticsHasZero (const fltSemantics &)
static LLVM_ABI bool	semanticsHasSignedRepr (const fltSemantics &)
static LLVM_ABI bool	semanticsHasInf (const fltSemantics &)
static LLVM_ABI bool	semanticsHasNaN (const fltSemantics &)
static LLVM_ABI bool	isIEEELikeFP (const fltSemantics &)
static LLVM_ABI bool	hasSignBitInMSB (const fltSemantics &)
static LLVM_ABI bool	isRepresentableAsNormalIn (const fltSemantics &Src, const fltSemantics &Dst)
static LLVM_ABI unsigned	getSizeInBits (const fltSemantics &Sem)
	Returns the size of the floating point number (in bits) in the given semantics.
static LLVM_ABI bool	isValidArbitraryFPFormat (StringRef Format)
	Returns true if the given string is a valid arbitrary floating-point format interpretation for llvm.convert.to.arbitrary.fp and llvm.convert.from.arbitrary.fp intrinsics.
static LLVM_ABI unsigned	getArbitraryFPFormatSizeInBits (StringRef Format)
	Returns the size in bits of a valid arbitrary floating-point format string, or 0 if the string is not a valid format.
static LLVM_ABI const fltSemantics *	getArbitraryFPSemantics (StringRef Format)
	Returns the fltSemantics for a given arbitrary FP format string, or nullptr if invalid.
static LLVM_ABI const llvm::fltSemantics &	EnumToSemantics (Semantics S)
static LLVM_ABI Semantics	SemanticsToEnum (const llvm::fltSemantics &Sem)
static const fltSemantics &	IEEEhalf ()
static const fltSemantics &	BFloat ()
static const fltSemantics &	IEEEsingle ()
static const fltSemantics &	IEEEdouble ()
static const fltSemantics &	IEEEquad ()
static const fltSemantics &	PPCDoubleDouble ()
static const fltSemantics &	PPCDoubleDoubleLegacy ()
static const fltSemantics &	Float8E5M2 ()
static const fltSemantics &	Float8E5M2FNUZ ()
static const fltSemantics &	Float8E4M3 ()
static const fltSemantics &	Float8E4M3FN ()
static const fltSemantics &	Float8E4M3FNUZ ()
static const fltSemantics &	Float8E4M3B11FNUZ ()
static const fltSemantics &	Float8E3M4 ()
static const fltSemantics &	FloatTF32 ()
static const fltSemantics &	Float8E8M0FNU ()
static const fltSemantics &	Float8E5M3FNU ()
static const fltSemantics &	Float6E3M2FN ()
static const fltSemantics &	Float6E2M3FN ()
static const fltSemantics &	Float4E2M1FN ()
static const fltSemantics &	x87DoubleExtended ()
static const fltSemantics &	Bogus ()
	A Pseudo fltsemantic used to construct APFloats that cannot conflict with anything real.
static LLVM_ABI bool	isRepresentableBy (const fltSemantics &A, const fltSemantics &B)
static LLVM_ABI bool	isLosslesslyConvertibleTo (const fltSemantics &From, const fltSemantics &To, bool IgnoreNaNs=false)
	Returns whether converting a value from `From` to `To` is known to preserve all information.

Public Attributes
friend	IEEEFloat
friend	DoubleAPFloat

Friends
LLVM_ABI friend hash_code	hash_value (const APFloat &Arg)
	See friend declarations above.
int	ilogb (const APFloat &Arg)
	Returns the exponent of the internal representation of the APFloat.
APFloat	scalbn (APFloat X, int Exp, roundingMode RM)
APFloat	frexp (const APFloat &X, int &Exp, roundingMode RM)

Additional Inherited Members
Public Types inherited from llvm::APFloatBase
enum	cmpResult { cmpLessThan , cmpEqual , cmpGreaterThan , cmpUnordered }
	IEEE-754R 5.11: Floating Point Comparison Relations. More...
enum	opStatus { opOK = 0x00 , opInvalidOp = 0x01 , opDivByZero = 0x02 , opOverflow = 0x04 , opUnderflow = 0x08 , opInexact = 0x10 }
	IEEE-754R 7: Default exception handling. More...
enum	fltCategory { fcInfinity , fcNaN , fcNormal , fcZero }
	Category of internally-represented number. More...
enum	uninitializedTag { uninitialized }
	Convenience enum used to construct an uninitialized APFloat. More...
enum	IlogbErrorKinds { IEK_Zero = INT_MIN + 1 , IEK_NaN = INT_MIN , IEK_Inf = INT_MAX }
	Enumeration of `ilogb` error results. More...
typedef APInt::WordType	integerPart
using	ExponentType = int32_t
	A signed type to represent a floating point numbers unbiased exponent.
using	roundingMode = llvm::RoundingMode
	IEEE-754R 4.3: Rounding-direction attributes.
enum	Semantics { S_IEEEhalf , S_BFloat , S_IEEEsingle , S_IEEEdouble , S_IEEEquad , S_PPCDoubleDouble , S_PPCDoubleDoubleLegacy , S_Float8E5M2 , S_Float8E5M2FNUZ , S_Float8E4M3 , S_Float8E4M3FN , S_Float8E4M3FNUZ , S_Float8E4M3B11FNUZ , S_Float8E3M4 , S_FloatTF32 , S_Float8E8M0FNU , S_Float6E3M2FN , S_Float6E2M3FN , S_Float4E2M1FN , S_Float8E5M3FNU , S_x87DoubleExtended , S_MaxSemantics = S_x87DoubleExtended }
Static Public Attributes inherited from llvm::APFloatBase
static constexpr unsigned	integerPartWidth = APInt::APINT_BITS_PER_WORD
static constexpr roundingMode	rmNearestTiesToEven
static constexpr roundingMode	rmTowardPositive = RoundingMode::TowardPositive
static constexpr roundingMode	rmTowardNegative = RoundingMode::TowardNegative
static constexpr roundingMode	rmTowardZero = RoundingMode::TowardZero
static constexpr roundingMode	rmNearestTiesToAway

Detailed Description

Definition at line 1074 of file APFloat.h.

Constructor & Destructor Documentation

◆ APFloat() [1/10]

llvm::APFloat::APFloat ( const fltSemantics & Semantics )

inline

Definition at line 1161 of file APFloat.h.

◆ APFloat() [2/10]

llvm::APFloat::APFloat	(	const fltSemantics &	Semantics,
		StringRef	S )

Definition at line 5932 of file APFloat.cpp.

References assert(), llvm::consumeError(), convertFromString(), and llvm::APFloatBase::rmNearestTiesToEven.

◆ APFloat() [3/10]

llvm::APFloat::APFloat	(	const fltSemantics &	Semantics,
		integerPart	I )

inline

Definition at line 1163 of file APFloat.h.

References I.

◆ APFloat() [4/10]

template<typename T, typename = std::enable_if_t<std::is_floating_point<T>::value>>

llvm::APFloat::APFloat	(	const fltSemantics &	Semantics,
		T	V )

delete

References T.

◆ APFloat() [5/10]

llvm::APFloat::APFloat	(	const fltSemantics &	Semantics,
		uninitializedTag	)

inline

Definition at line 1168 of file APFloat.h.

References llvm::APFloatBase::uninitialized.

◆ APFloat() [6/10]

llvm::APFloat::APFloat	(	const fltSemantics &	Semantics,
		const APInt &	I )

inline

Definition at line 1170 of file APFloat.h.

References I.

◆ APFloat() [7/10]

llvm::APFloat::APFloat ( double d )

inlineexplicit

Definition at line 1171 of file APFloat.h.

References llvm::APFloatBase::IEEEdouble().

◆ APFloat() [8/10]

llvm::APFloat::APFloat ( float f )

inlineexplicit

Definition at line 1172 of file APFloat.h.

References llvm::APFloatBase::IEEEsingle().

◆ APFloat() [9/10]

llvm::APFloat::APFloat ( const APFloat & RHS )

default

References RHS.

◆ APFloat() [10/10]

llvm::APFloat::APFloat ( APFloat && RHS )

default

References RHS.

◆ ~APFloat()

llvm::APFloat::~APFloat ( )

default

Member Function Documentation

◆ add()

opStatus llvm::APFloat::add	(	const APFloat &	RHS,
		roundingMode	RM )

inline

Definition at line 1285 of file APFloat.h.

References assert(), getSemantics(), llvm_unreachable, and RHS.

Referenced by llvm::ConstantFoldBinaryInstruction(), llvm::ConstantFoldFPBinOp(), llvm::SelectionDAG::foldConstantFPMath(), llvm::ExecutionEngine::getConstantValue(), llvm::detail::DoubleAPFloat::multiply(), llvm::AMDGPUTargetLowering::PerformDAGCombine(), and llvm::detail::DoubleAPFloat::roundToIntegral().

◆ bitcastToAPInt()

APInt llvm::APFloat::bitcastToAPInt ( ) const

inline

Definition at line 1475 of file APFloat.h.

References APFLOAT_DISPATCH_ON_SEMANTICS, and bitcastToAPInt().

Referenced by llvm::DwarfExpression::addConstantFP(), llvm::DwarfUnit::addConstantFPValue(), bitcastToAPInt(), llvm::detail::DoubleAPFloat::convertFromString(), convertIntToDoubleImm(), llvm::convertToNonDenormSingle(), llvm::SPIRVGlobalRegistry::createConstFP(), llvm::detail::DoubleAPFloat::divide(), emitGlobalConstantFP(), llvm::TargetLowering::expandIS_FPCLASS(), llvm::InstCombinerImpl::foldICmpAndConstConst(), foldLogOpOfMaskedICmps_NotAllZeros_BMask_Mixed(), llvm::detail::DoubleAPFloat::fusedMultiplyAdd(), llvm::generateSpecConstantInst(), llvm::ExecutionEngine::getConstantValue(), llvm::getExpressionForConstant(), llvm::AArch64_AM::getFP16Imm(), llvm::ARM_AM::getFP16Imm(), llvm::ARM_AM::getFP32FP16Imm(), llvm::AArch64_AM::getFP32Imm(), llvm::ARM_AM::getFP32Imm(), llvm::AArch64_AM::getFP64Imm(), llvm::ARM_AM::getFP64Imm(), llvm::RISCVLoadFPImm::getLoadFPImm(), llvm::HexagonLowerToMC(), insertSpirvDecorations(), llvm::GCNTTIImpl::instCombineIntrinsic(), llvm::AMDGPUTargetLowering::isInt64ImmLegal(), llvm::RISCVLegalizerInfo::legalizeCustom(), llvm::LegalizerHelper::lowerISFPCLASS(), llvm::detail::DoubleAPFloat::mod(), llvm::NVPTXFloatMCExpr::printImpl(), Profile(), llvm::detail::DoubleAPFloat::remainder(), llvm::RISCVDAGToDAGISel::Select(), llvm::RISCVDAGToDAGISel::selectScalarFPAsInt(), llvm::stableHashValue(), llvm::LegalizerHelper::widenScalar(), and writeAPFloatInternal().

◆ bitwiseIsEqual()

bool llvm::APFloat::bitwiseIsEqual ( const APFloat & RHS ) const

inline

Definition at line 1548 of file APFloat.h.

References getSemantics(), llvm_unreachable, and RHS.

Referenced by fmed3AMDGCN(), llvm::ConstantFPRange::getSingleElement(), isExactlyValue(), isInv2Pi(), and isInv2Pi().

◆ changeSign()

void llvm::APFloat::changeSign ( )

inline

Definition at line 1401 of file APFloat.h.

References APFLOAT_DISPATCH_ON_SEMANTICS, and changeSign().

Referenced by changeSign(), clearSign(), copySign(), llvm::PPCInstrInfo::finalizeInsInstrs(), llvm::SelectionDAG::getIdentityElement(), llvm::TargetLowering::getNegatedExpression(), getOne(), llvm::SelectionDAG::isIdentityElement(), llvm::SPIRVCombinerHelper::matchSelectToFaceForward(), and llvm::X86TargetLowering::X86TargetLowering().

◆ classify()

FPClassTest llvm::APFloat::classify ( ) const

Return the FPClassTest which will return true for the value.

Definition at line 5939 of file APFloat.cpp.

References assert(), llvm::fcNegInf, llvm::fcNegNormal, llvm::fcNegSubnormal, llvm::fcNegZero, llvm::fcPosInf, llvm::fcPosNormal, llvm::fcPosSubnormal, llvm::fcPosZero, llvm::fcQNan, llvm::fcSNan, isDenormal(), isInfinity(), isNaN(), isNegative(), isNormal(), isSignaling(), and isZero().

Referenced by llvm::GenericFloatingPointPredicateUtils< SSAContext >::fcmpImpliesClass(), and llvm::InstCombinerImpl::foldICmpBitCast().

◆ clearSign()

void llvm::APFloat::clearSign ( )

inline

Definition at line 1402 of file APFloat.h.

References changeSign(), and isNegative().

Referenced by LowerFCOPYSIGN(), llvm::InstCombinerImpl::visitCallInst(), and llvm::InstCombinerImpl::visitFCmpInst().

◆ compare()

cmpResult llvm::APFloat::compare ( const APFloat & RHS ) const

inline

Definition at line 1526 of file APFloat.h.

References assert(), getSemantics(), llvm_unreachable, and RHS.

Referenced by operator!=(), operator<(), operator<=(), operator==(), operator>(), and operator>=().

◆ compareAbsoluteValue()

cmpResult llvm::APFloat::compareAbsoluteValue ( const APFloat & RHS ) const

inline

Definition at line 1538 of file APFloat.h.

References assert(), getSemantics(), llvm_unreachable, and RHS.

Referenced by llvm::KnownFPClass::fmul().

◆ convert()

APFloat::opStatus llvm::APFloat::convert	(	const fltSemantics &	ToSemantics,
		roundingMode	RM,
		bool *	losesInfo )

Definition at line 6010 of file APFloat.cpp.

References llvm::APFloatBase::APFloat, assert(), getSemantics(), llvm_unreachable, and llvm::APFloatBase::opOK.

Referenced by llvm::MachineIRBuilder::buildFConstant(), canLosslesslyConvertToFPType(), canSafelyConvertTo16Bit(), llvm::ConstantFPRange::cast(), llvm::checkConvertToNonDenormSingle(), llvm::ConstantFoldCastInstruction(), convertToDouble(), llvm::APFixedPoint::convertToFloat(), convertToFloat(), llvm::convertToNonDenormSingle(), emitDebugValueComment(), llvm::SelectionDAG::FoldConstantArithmetic(), llvm::SelectionDAG::foldConstantFPMath(), foldFCmpFpTrunc(), llvm::ConstantFP::get(), llvm::SelectionDAG::getConstantFP(), llvm::APFixedPoint::getFromFloatValue(), llvm::RISCVLoadFPImm::getLoadFPImm(), llvm::GCNTTIImpl::instCombineIntrinsic(), isExactlyValue(), llvm::ConstantFP::isExactlyValue(), isFPExtFromF16OrConst(), llvm::APFloatBase::isLosslesslyConvertibleTo(), llvm::ConstantFP::isValueValidForType(), llvm::ConstantFPSDNode::isValueValidForType(), LLVMConstRealGetDouble(), LowerFROUND(), llvm::ARMAsmPrinter::lowerOperand(), matchFPExtFromF16(), llvm::NVPTXFloatMCExpr::printImpl(), strictFPExtFromF16(), llvm::InstCombinerImpl::visitFCmpInst(), and llvm::X86TargetLowering::X86TargetLowering().

◆ convertFromAPInt()

opStatus llvm::APFloat::convertFromAPInt	(	const APInt &	Input,
		bool	IsSigned,
		roundingMode	RM )

inline

Definition at line 1451 of file APFloat.h.

References APFLOAT_DISPATCH_ON_SEMANTICS, and convertFromAPInt().

Referenced by llvm::ConstantFoldCastInstruction(), llvm::ConstantFoldIntToFloat(), convertFromAPInt(), llvm::APFixedPoint::convertToFloat(), llvm::TargetLowering::expandFP_TO_INT_SAT(), llvm::TargetLowering::expandFP_TO_UINT(), llvm::SelectionDAG::FoldConstantArithmetic(), foldFPToIntToFP(), llvm::ExecutionEngine::getConstantValue(), llvm::LegalizerHelper::lowerFPTOINT_SAT(), llvm::LegalizerHelper::lowerFPTOUI(), lowerFTRUNC_FCEIL_FFLOOR_FROUND(), lowerVectorFTRUNC_FCEIL_FFLOOR_FROUND(), and lowerVectorStrictFTRUNC_FCEIL_FFLOOR_FROUND().

◆ convertFromString()

Expected< APFloat::opStatus > llvm::APFloat::convertFromString	(	StringRef	Str,
		roundingMode	RM )

Fill this APFloat with the result of a string conversion.

The following strings are accepted for conversion purposes:

Decimal floating-point literals (e.g., 0.1e-5)
Hexadecimal floating-point literals (e.g., 0x1.0p-5)
Positive infinity via "inf", "INFINITY", "Inf", "+Inf", or "+inf".
Negative infinity via "-inf", "-INFINITY", or "-Inf".
Quiet NaNs via "nan", "NaN", "nan(...)", or "NaN(...)", where the "..." is either a decimal or hexadecimal integer representing the payload. A negative sign may be optionally provided.
Signaling NaNs via "snan", "sNaN", "snan(...)", or "sNaN(...)", where the "..." is either a decimal or hexadecimal integer representing the payload. A negative sign may be optionally provided.

If the input string is none of these forms, then an error is returned.

If a floating-point exception occurs during conversion, then no error is returned, and the exception is indicated via opStatus.

Definition at line 5919 of file APFloat.cpp.

References APFLOAT_DISPATCH_ON_SEMANTICS, and convertFromString().

Referenced by APFloat(), convertFromString(), and llvm::detail::DoubleAPFloat::convertFromString().

◆ convertToDouble()

double llvm::APFloat::convertToDouble ( ) const

Converts this APFloat to host double value.

Precondition: The APFloat must be built using semantics, that can be represented by the host double type without loss of precision. It can be IEEEdouble and shorter semantics, like IEEEsingle and others.

Definition at line 6069 of file APFloat.cpp.

References assert(), convert(), llvm::detail::IEEEFloat::convertToDouble(), getSemantics(), llvm::APFloatBase::isRepresentableBy(), llvm::APFloatBase::opInexact, and llvm::APFloatBase::rmNearestTiesToEven.

Referenced by emitDebugValueComment(), llvm::ExecutionEngine::getConstantValue(), LLVMConstRealGetDouble(), and llvm::ARMAsmPrinter::lowerOperand().

◆ convertToFloat()

float llvm::APFloat::convertToFloat ( ) const

Converts this APFloat to host float value.

Precondition: The APFloat must be built using semantics, that can be represented by the host float type without loss of precision. It can be IEEEquad and shorter semantics, like IEEEdouble and others. Converts this APFloat to host float value.; The APFloat must be built using semantics, that can be represented by the host float type without loss of precision. It can be IEEEsingle and shorter semantics, like IEEEhalf.

Definition at line 6097 of file APFloat.cpp.

References assert(), convert(), llvm::detail::IEEEFloat::convertToFloat(), getSemantics(), llvm::APFloatBase::isRepresentableBy(), llvm::APFloatBase::opInexact, and llvm::APFloatBase::rmNearestTiesToEven.

Referenced by llvm::ExecutionEngine::getConstantValue(), llvm::FPMathOperator::getFPAccuracy(), and llvm::SPIRVMCInstLower::lower().

◆ convertToHexString()

unsigned int llvm::APFloat::convertToHexString	(	char *	DST,
		unsigned int	HexDigits,
		bool	UpperCase,
		roundingMode	RM ) const

inline

Definition at line 1573 of file APFloat.h.

References APFLOAT_DISPATCH_ON_SEMANTICS, and convertToHexString().

Referenced by convertToHexString(), and llvm::detail::DoubleAPFloat::convertToHexString().

◆ convertToInteger() [1/2]

APFloat::opStatus llvm::APFloat::convertToInteger	(	APSInt &	Result,
		roundingMode	RM,
		bool *	IsExact ) const

Definition at line 6057 of file APFloat.cpp.

References convertToInteger(), llvm::APInt::getBitWidth(), llvm::APInt::getNumWords(), and llvm::APSInt::isSigned().

◆ convertToInteger() [2/2]

opStatus llvm::APFloat::convertToInteger	(	MutableArrayRef< integerPart >	Input,
		unsigned int	Width,
		bool	IsSigned,
		roundingMode	RM,
		bool *	IsExact ) const

inline

Definition at line 1436 of file APFloat.h.

References APFLOAT_DISPATCH_ON_SEMANTICS, and convertToInteger().

Referenced by llvm::CheckFixedPointOperandConstant(), convertToInteger(), convertToInteger(), ConvertToSInt(), foldFPtoI(), foldFPToIntToFP(), llvm::BuildVectorSDNode::getConstantFPSplatPow2ToLog2Int(), llvm::ExecutionEngine::getConstantValue(), getExactInteger(), llvm::MCSchedModel::getResourceBufferSize(), isMinMaxCmpSelectEliminable(), and PerformVMulVCTPCombine().

◆ copySign() [1/2]

APFloat llvm::APFloat::copySign	(	APFloat	Value,
		const APFloat &	Sign )

inlinestatic

A static helper to produce a copy of an APFloat value with its sign copied from some other APFloat.

Definition at line 1413 of file APFloat.h.

◆ copySign() [2/2]

void llvm::APFloat::copySign ( const APFloat & RHS )

inline

Definition at line 1406 of file APFloat.h.

References changeSign(), isNegative(), and RHS.

Referenced by llvm::ConstantFoldFPBinOp(), and llvm::SelectionDAG::foldConstantFPMath().

◆ divide()

opStatus llvm::APFloat::divide	(	const APFloat &	RHS,
		roundingMode	RM )

inline

Definition at line 1312 of file APFloat.h.

References assert(), getSemantics(), llvm_unreachable, and RHS.

Referenced by llvm::ConstantFoldBinaryInstruction(), llvm::ConstantFoldFPBinOp(), llvm::detail::DoubleAPFloat::divide(), llvm::SelectionDAG::foldConstantFPMath(), and llvm::ExecutionEngine::getConstantValue().

◆ dump()

LLVM_DUMP_METHOD void llvm::APFloat::dump ( ) const

Definition at line 6047 of file APFloat.cpp.

References llvm::dbgs(), LLVM_DUMP_METHOD, and print().

◆ fusedMultiplyAdd()

opStatus llvm::APFloat::fusedMultiplyAdd	(	const APFloat &	Multiplicand,
		const APFloat &	Addend,
		roundingMode	RM )

inline

Definition at line 1339 of file APFloat.h.

References assert(), getSemantics(), and llvm_unreachable.

Referenced by llvm::detail::DoubleAPFloat::fusedMultiplyAdd(), llvm::CombinerHelper::matchConstantFoldFMA(), and llvm::detail::DoubleAPFloat::multiply().

◆ getAllOnesValue()

APFloat llvm::APFloat::getAllOnesValue ( const fltSemantics & Semantics )

static

Returns a float which is bitcasted from an all one value int.

Parameters

Semantics - type float semantics

Definition at line 6036 of file APFloat.cpp.

References llvm::APFloatBase::APFloat, and llvm::APInt::getAllOnes().

Referenced by llvm::Constant::getAllOnesValue().

◆ getCategory()

fltCategory llvm::APFloat::getCategory ( ) const

inline

Definition at line 1590 of file APFloat.h.

Referenced by isInfinity(), isNaN(), and isZero().

◆ getExactInverse()

bool llvm::APFloat::getExactInverse ( APFloat * Inv ) const

If this value is normal and has an exact, normal, multiplicative inverse, store it in inv and return true.

Definition at line 5952 of file APFloat.cpp.

References assert(), getExactLog2Abs(), getOne(), getSemantics(), isDenormal(), isFiniteNonZero(), isNegative(), llvm::APFloatBase::rmTowardZero, and scalbn.

Referenced by llvm::CheckFixedPointOperandConstant(), and PerformVMulVCTPCombine().

◆ getExactLog2()

LLVM_READONLY int llvm::APFloat::getExactLog2 ( ) const

inline

Definition at line 1646 of file APFloat.h.

References getExactLog2Abs(), and isNegative().

Referenced by isPowerOf2().

◆ getExactLog2Abs()

LLVM_READONLY int llvm::APFloat::getExactLog2Abs ( ) const

inline

Definition at line 1639 of file APFloat.h.

References APFLOAT_DISPATCH_ON_SEMANTICS, and getExactLog2Abs().

Referenced by computeKnownExponentRangeFromContext(), getExactInverse(), getExactLog2(), getExactLog2Abs(), llvm::detail::DoubleAPFloat::getExactLog2Abs(), and isNegPowerOf2().

◆ getInf()

APFloat llvm::APFloat::getInf	(	const fltSemantics &	Sem,
		bool	Negative = false )

inlinestatic

Factory for Positive and Negative Infinity.

Parameters

Negative True iff the number should be negative.

Definition at line 1202 of file APFloat.h.

References llvm::APFloatBase::uninitialized.

Referenced by llvm::ConstantFPRange::add(), canonicalizeRange(), llvm::ConstantFPRange::div(), llvm::TargetLowering::expandCONVERT_TO_ARBITRARY_FP(), llvm::TargetLowering::expandIS_FPCLASS(), llvm::InstCombinerImpl::foldICmpAndConstConst(), foldLogOpOfMaskedICmps_NotAllZeros_BMask_Mixed(), llvm::SelectionDAG::getIdentityElement(), llvm::ConstantFP::getInfinity(), llvm::AMDGPUTargetLowering::getIsFinite(), llvm::ConstantFPRange::getNaNOnly(), llvm::ConstantFPRange::getNonNaN(), llvm::harrisonUlp(), llvm::SelectionDAG::isIdentityElement(), llvm::AMDGPULegalizerInfo::legalizeFExp(), llvm::AMDGPULegalizerInfo::legalizeFEXPF64(), llvm::AMDGPULegalizerInfo::legalizeFFREXP(), llvm::AMDGPULegalizerInfo::legalizeFlogCommon(), llvm::AMDGPUTargetLowering::lowerFEXP(), llvm::LegalizerHelper::lowerFMODF(), lowerFREM(), llvm::LegalizerHelper::lowerISFPCLASS(), llvm::ConstantFPRange::makeAllowedFCmpRegion(), llvm::fuzzerop::makeConstantsWithType(), makeGreaterThan(), makeLessThan(), llvm::ConstantFPRange::mul(), and llvm::KnownFPClass::toKnownBits().

◆ getLargest()

APFloat llvm::APFloat::getLargest	(	const fltSemantics &	Sem,
		bool	Negative = false )

inlinestatic

Returns the largest finite number in the given semantics.

Parameters

Negative - True iff the number should be negative

Definition at line 1242 of file APFloat.h.

References llvm::APFloatBase::uninitialized.

Referenced by computeKnownFPClass(), llvm::TargetLowering::expandIS_FPCLASS(), llvm::InstCombinerImpl::foldFCmpIntToFPConst(), llvm::ConstantFPRange::getFinite(), llvm::SelectionDAG::getIdentityElement(), llvm::getReductionIdentity(), llvm::SelectionDAG::isIdentityElement(), ldexpSaturatingAddIsSafe(), llvm::AMDGPULegalizerInfo::legalizeRsqClampIntrinsic(), llvm::LegalizerHelper::lowerISFPCLASS(), llvm::ConstantFPRange::makeAllowedFCmpRegion(), llvm::fuzzerop::makeConstantsWithType(), removeInf(), and SameSignRange::SameSignRange().

◆ getNaN()

APFloat llvm::APFloat::getNaN	(	const fltSemantics &	Sem,
		bool	Negative = false,
		uint64_t	payload = 0 )

inlinestatic

Factory for NaN values.

Parameters

Negative	- True iff the NaN generated should be negative.
payload	- The unspecified fill bits for creating the NaN, 0 by default. The value is truncated as necessary.

Definition at line 1213 of file APFloat.h.

References getQNaN(), and uint64_t.

Referenced by llvm::TargetLowering::expandFMINIMUM_FMAXIMUM(), llvm::SelectionDAG::foldConstantFPMath(), getIdentityValueForAtomicOp(), llvm::ConstantFP::getNaN(), llvm::LegalizerHelper::lowerFMinimumMaximum(), and llvm::fuzzerop::makeConstantsWithType().

◆ getNaNPayload()

APInt llvm::APFloat::getNaNPayload ( ) const

inline

If the value is a NaN value, return an integer containing the payload of this value.

This payload will include the quiet bit as part of the returned integer.

Definition at line 1609 of file APFloat.h.

References APFLOAT_DISPATCH_ON_SEMANTICS, assert(), getNaNPayload(), and isNaN().

Referenced by getNaNPayload(), and writeAPFloatInternal().

◆ getOne()

APFloat llvm::APFloat::getOne	(	const fltSemantics &	Sem,
		bool	Negative = false )

inlinestatic

Factory for Positive and Negative One.

Parameters

Negative True iff the number should be negative.

Definition at line 1192 of file APFloat.h.

References changeSign().

Referenced by llvm::AMDGPU::evaluateRcp(), llvm::KnownFPClass::fmul(), foldFCmpFAbsFSubIntToFP(), llvm::InstCombinerImpl::foldICmpInstWithConstant(), getExactInverse(), getOneFP(), llvm::harrisonUlp(), llvm::isMathLibCallNoop(), llvm::detail::DoubleAPFloat::roundToIntegral(), llvm::InstCombinerImpl::SimplifyDemandedUseFPClass(), and llvm::InstCombinerImpl::visitCallInst().

◆ getQNaN()

APFloat llvm::APFloat::getQNaN	(	const fltSemantics &	Sem,
		bool	Negative = false,
		const APInt *	payload = nullptr )

inlinestatic

Factory for QNaN values.

Definition at line 1224 of file APFloat.h.

References llvm::APFloatBase::uninitialized.

Referenced by llvm::SelectionDAG::getIdentityElement(), getNaN(), llvm::ConstantFP::getQNaN(), llvm::harrisonUlp(), llvm::GCNTTIImpl::instCombineIntrinsic(), llvm::SelectionDAG::isIdentityElement(), and toString().

◆ getSemantics()

const fltSemantics & llvm::APFloat::getSemantics ( ) const

inline

◆ getSmallest()

APFloat llvm::APFloat::getSmallest	(	const fltSemantics &	Sem,
		bool	Negative = false )

inlinestatic

Returns the smallest (by magnitude) finite number in the given semantics.

Might be denormalized, which implies a relative loss of precision.

Parameters

Negative - True iff the number should be negative

Definition at line 1252 of file APFloat.h.

References llvm::APFloatBase::uninitialized.

Referenced by llvm::ConstantFPRange::div(), llvm::harrisonUlp(), llvm::APFloatBase::isLosslesslyConvertibleTo(), ldexpSaturatingAddIsSafe(), and llvm::fuzzerop::makeConstantsWithType().

◆ getSmallestNormalized()

APFloat llvm::APFloat::getSmallestNormalized	(	const fltSemantics &	Sem,
		bool	Negative = false )

inlinestatic

Returns the smallest (by magnitude) normalized finite number in the given semantics.

Parameters

Negative - True iff the number should be negative

Definition at line 1262 of file APFloat.h.

References llvm::APFloatBase::uninitialized.

Referenced by emitRsqIEEE1ULP(), llvm::TargetLowering::expandIS_FPCLASS(), llvm::AMDGPUTargetLowering::getIsLtSmallestNormal(), llvm::AMDGPULegalizerInfo::getScaledLogInput(), llvm::AMDGPUTargetLowering::getScaledLogInput(), llvm::TargetLowering::getSqrtInputTest(), and llvm::InstCombinerImpl::visitFCmpInst().

◆ getSNaN()

APFloat llvm::APFloat::getSNaN	(	const fltSemantics &	Sem,
		bool	Negative = false,
		const APInt *	payload = nullptr )

inlinestatic

Factory for SNaN values.

Definition at line 1232 of file APFloat.h.

References llvm::APFloatBase::uninitialized.

Referenced by llvm::ConstantFP::getSNaN().

◆ getZero()

APFloat llvm::APFloat::getZero	(	const fltSemantics &	Sem,
		bool	Negative = false )

inlinestatic

Factory for Positive and Negative Zero.

Parameters

Negative True iff the number should be negative.

Definition at line 1183 of file APFloat.h.

References llvm::APFloatBase::uninitialized.

Referenced by llvm::ConstantFPRange::abs(), llvm::ConstantFPRange::div(), llvm::AMDGPU::evaluateRcp(), extendZeroIfEqual(), llvm::detail::fastTwoSum(), fixFuncEntryCount(), flushDenormalConstant(), llvm::ConstantFPRange::flushDenormals(), llvm::generateReadImageInst(), llvm::ExecutionEngine::getConstantValue(), getIdentityValueForAtomicOp(), llvm::Constant::getNullValue(), llvm::ConstantFP::getZero(), getZeroFP(), llvm::GCNTTIImpl::instCombineIntrinsic(), llvm::fuzzerop::makeConstantsWithType(), printConstant(), splitPosNeg(), llvm::pdb::Variant::toAPFloat(), and llvm::X86TargetLowering::X86TargetLowering().

◆ hasSignificand()

bool llvm::APFloat::hasSignificand ( const fltSemantics & Sem )

inlinestatic

Returns true if the given semantics has actual significand.

Parameters

Sem	- type float semantics

Definition at line 1277 of file APFloat.h.

References llvm::APFloatBase::Float8E8M0FNU().

Referenced by llvm::detail::IEEEFloat::convert(), llvm::detail::IEEEFloat::isLargest(), and llvm::detail::IEEEFloat::next().

◆ isDenormal()

bool llvm::APFloat::isDenormal ( ) const

inline

Definition at line 1584 of file APFloat.h.

References APFLOAT_DISPATCH_ON_SEMANTICS, and isDenormal().

Referenced by llvm::checkConvertToNonDenormSingle(), classify(), llvm::convertToNonDenormSingle(), llvm::AMDGPU::evaluateRcp(), flushDenormalConstantFP(), llvm::FlushFPConstant(), getExactInverse(), isDenormal(), and isNormal().

◆ isExactlyValue()

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

inline

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.

We leave the version with the double argument here because it's just so convenient to write "2.0" and the like. Without this function we'd have to duplicate its logic everywhere it's called.

Definition at line 1566 of file APFloat.h.

References bitwiseIsEqual(), convert(), getSemantics(), and llvm::APFloatBase::rmNearestTiesToEven.

◆ isFinite()

bool llvm::APFloat::isFinite ( ) const

inline

Definition at line 1588 of file APFloat.h.

References isInfinity(), and isNaN().

Referenced by llvm::SelectionDAG::getNode(), isFiniteNonZero(), and matchFastFloatClamp().

◆ isFiniteNonZero()

bool llvm::APFloat::isFiniteNonZero ( ) const

inline

Definition at line 1593 of file APFloat.h.

References isFinite(), and isZero().

Referenced by getExactInverse(), and isNormal().

◆ isInfinity()

bool llvm::APFloat::isInfinity ( ) const

inline

Definition at line 1580 of file APFloat.h.

References llvm::APFloatBase::fcInfinity, and getCategory().

Referenced by classify(), foldFCmpFpTrunc(), llvm::GCNTTIImpl::instCombineIntrinsic(), isFinite(), llvm::SelectionDAG::isIdentityElement(), llvm::isMathLibCallNoop(), isNegInfinity(), isPosInfinity(), ldexpSaturatingAddIsSafe(), llvm::detail::DoubleAPFloat::next(), OptimizeConstMinMax(), and writeAPFloatInternal().

◆ isInteger()

bool llvm::APFloat::isInteger ( ) const

inline

Definition at line 1600 of file APFloat.h.

References APFLOAT_DISPATCH_ON_SEMANTICS, and isInteger().

Referenced by foldFPtoI(), isInteger(), and llvm::isKnownIntegral().

◆ isLargest()

bool llvm::APFloat::isLargest ( ) const

inline

Definition at line 1599 of file APFloat.h.

References APFLOAT_DISPATCH_ON_SEMANTICS, and isLargest().

Referenced by llvm::SelectionDAG::isIdentityElement(), isLargest(), and OptimizeConstMinMax().

◆ isMinusOne()

LLVM_READONLY bool llvm::APFloat::isMinusOne ( ) const

inline

Definition at line 1664 of file APFloat.h.

References isNegPowerOf2(), and LLVM_READONLY.

◆ isNaN()

bool llvm::APFloat::isNaN ( ) const

inline

Definition at line 1581 of file APFloat.h.

References llvm::APFloatBase::fcNaN, and getCategory().

Referenced by llvm::ConstantFPRange::cast(), classify(), llvm::ConstantFPRange::contains(), fmed3AMDGCN(), foldFCmpFpTrunc(), getNaNPayload(), llvm::GCNTTIImpl::instCombineIntrinsic(), isFinite(), llvm::isMathLibCallNoop(), llvm::CombinerHelper::matchCombineFMinMaxNaN(), OptimizeConstMinMax(), and writeAPFloatInternal().

◆ isNegative()

bool llvm::APFloat::isNegative ( ) const

inline

◆ isNegInfinity()

bool llvm::APFloat::isNegInfinity ( ) const

inline

Definition at line 1597 of file APFloat.h.

References isInfinity(), and isNegative().

◆ isNegPowerOf2()

LLVM_READONLY bool llvm::APFloat::isNegPowerOf2 ( int N ) const

inline

Definition at line 1656 of file APFloat.h.

References getExactLog2Abs(), isNegative(), and N.

Referenced by isMinusOne().

◆ isNegZero()

bool llvm::APFloat::isNegZero ( ) const

inline

Definition at line 1595 of file APFloat.h.

References isNegative(), and isZero().

Referenced by llvm::RISCVDAGToDAGISel::Select(), llvm::RISCVDAGToDAGISel::selectScalarFPAsInt(), and llvm::SelectionDAG::simplifyFPBinop().

◆ isNonZero()

bool llvm::APFloat::isNonZero ( ) const

inline

Definition at line 1592 of file APFloat.h.

References isZero().

◆ isNormal()

bool llvm::APFloat::isNormal ( ) const

inline

Definition at line 1587 of file APFloat.h.

References isDenormal(), and isFiniteNonZero().

Referenced by classify().

◆ isOne()

LLVM_READONLY bool llvm::APFloat::isOne ( ) const

inline

Definition at line 1661 of file APFloat.h.

References isPowerOf2(), and LLVM_READONLY.

Referenced by llvm::SelectionDAG::simplifyFPBinop().

◆ isPosInfinity()

bool llvm::APFloat::isPosInfinity ( ) const

inline

Definition at line 1596 of file APFloat.h.

References isInfinity(), and isNegative().

Referenced by llvm::GCNTTIImpl::instCombineIntrinsic().

◆ isPosZero()

bool llvm::APFloat::isPosZero ( ) const

inline

Definition at line 1594 of file APFloat.h.

References isNegative(), and isZero().

Referenced by llvm::SPIRVGlobalRegistry::createConstFP(), llvm::RISCVDAGToDAGISel::Select(), llvm::RISCVDAGToDAGISel::selectScalarFPAsInt(), and llvm::SelectionDAG::simplifyFPBinop().

◆ isPowerOf2()

LLVM_READONLY bool llvm::APFloat::isPowerOf2 ( int N ) const

inline

Definition at line 1652 of file APFloat.h.

References getExactLog2(), and N.

Referenced by isOne().

◆ isSignaling()

bool llvm::APFloat::isSignaling ( ) const

inline

Definition at line 1585 of file APFloat.h.

Referenced by classify(), llvm::ConstantFPRange::contains(), llvm::GCNTTIImpl::instCombineIntrinsic(), OptimizeConstMinMax(), and writeAPFloatInternal().

◆ isSmallest()

bool llvm::APFloat::isSmallest ( ) const

inline

Definition at line 1598 of file APFloat.h.

References APFLOAT_DISPATCH_ON_SEMANTICS, and isSmallest().

Referenced by isSmallest().

◆ isSmallestNormalized()

bool llvm::APFloat::isSmallestNormalized ( ) const

inline

Definition at line 1602 of file APFloat.h.

References APFLOAT_DISPATCH_ON_SEMANTICS, and isSmallestNormalized().

Referenced by llvm::GenericFloatingPointPredicateUtils< SSAContext >::fcmpImpliesClass(), llvm::RISCVLoadFPImm::getLoadFPImm(), and isSmallestNormalized().

◆ isZero()

bool llvm::APFloat::isZero ( ) const

inline

Definition at line 1579 of file APFloat.h.

References llvm::APFloatBase::fcZero, and getCategory().

Referenced by classify(), llvm::detail::frexp(), llvm::MCSchedModel::getResourceBufferSize(), isFiniteNonZero(), llvm::isMathLibCallNoop(), isNegZero(), isNonZero(), isPosZero(), ldexpSaturatingAddIsSafe(), llvm::detail::DoubleAPFloat::next(), llvm::RISCVDAGToDAGISel::Select(), llvm::SelectionDAG::simplifyFPBinop(), and llvm::InstCombinerImpl::visitFCmpInst().

◆ makeQuiet()

APFloat llvm::APFloat::makeQuiet ( ) const

inlinenodiscard

Assuming this is an IEEE-754 NaN value, quiet its signaling bit.

This preserves the sign and payload bits.

Definition at line 1420 of file APFloat.h.

Referenced by llvm::GCNTTIImpl::instCombineIntrinsic(), and OptimizeConstMinMax().

◆ mod()

opStatus llvm::APFloat::mod ( const APFloat & RHS )

inline

Definition at line 1330 of file APFloat.h.

References assert(), getSemantics(), llvm_unreachable, and RHS.

Referenced by llvm::ConstantFoldBinaryInstruction(), llvm::ConstantFoldFPBinOp(), llvm::SelectionDAG::foldConstantFPMath(), llvm::ExecutionEngine::getConstantValue(), and llvm::detail::DoubleAPFloat::mod().

◆ multiply()

opStatus llvm::APFloat::multiply	(	const APFloat &	RHS,
		roundingMode	RM )

inline

Definition at line 1303 of file APFloat.h.

References assert(), getSemantics(), llvm_unreachable, and RHS.

Referenced by llvm::ConstantFoldBinaryInstruction(), llvm::ConstantFoldFPBinOp(), llvm::APFixedPoint::convertToFloat(), llvm::SelectionDAG::foldConstantFPMath(), llvm::ExecutionEngine::getConstantValue(), llvm::MCSchedModel::getResourceBufferSize(), and llvm::AMDGPUTargetLowering::PerformDAGCombine().

◆ needsCleanup()

bool llvm::APFloat::needsCleanup ( ) const

inline

Definition at line 1178 of file APFloat.h.

References APFLOAT_DISPATCH_ON_SEMANTICS, and needsCleanup().

Referenced by needsCleanup().

◆ next()

opStatus llvm::APFloat::next ( bool nextDown )

inline

Definition at line 1358 of file APFloat.h.

References APFLOAT_DISPATCH_ON_SEMANTICS, and next().

Referenced by foldFCmpFpTrunc(), llvm::detail::frexp(), LowerFROUND(), next(), and llvm::detail::DoubleAPFloat::next().

◆ operator!=()

bool llvm::APFloat::operator!= ( const APFloat & RHS ) const

inline

Definition at line 1504 of file APFloat.h.

References llvm::APFloatBase::cmpEqual, compare(), and RHS.

◆ operator*()

APFloat llvm::APFloat::operator* ( const APFloat & RHS ) const

inline

Multiply two APFloats, rounding ties to the nearest even.

No error checking.

Definition at line 1387 of file APFloat.h.

References RHS, and llvm::APFloatBase::rmNearestTiesToEven.

◆ operator+()

APFloat llvm::APFloat::operator+ ( const APFloat & RHS ) const

inline

Add two APFloats, rounding ties to the nearest even.

No error checking.

Definition at line 1371 of file APFloat.h.

References RHS, and llvm::APFloatBase::rmNearestTiesToEven.

◆ operator-() [1/2]

APFloat llvm::APFloat::operator- ( ) const

inline

Negate an APFloat.

Definition at line 1363 of file APFloat.h.

◆ operator-() [2/2]

APFloat llvm::APFloat::operator- ( const APFloat & RHS ) const

inline

Subtract two APFloats, rounding ties to the nearest even.

No error checking.

Definition at line 1379 of file APFloat.h.

References RHS, and llvm::APFloatBase::rmNearestTiesToEven.

◆ operator/()

APFloat llvm::APFloat::operator/ ( const APFloat & RHS ) const

inline

Divide the first APFloat by the second, rounding ties to the nearest even.

No error checking.

Definition at line 1395 of file APFloat.h.

References RHS, and llvm::APFloatBase::rmNearestTiesToEven.

◆ operator<()

bool llvm::APFloat::operator< ( const APFloat & RHS ) const

inline

Definition at line 1506 of file APFloat.h.

References llvm::APFloatBase::cmpLessThan, compare(), and RHS.

◆ operator<=()

bool llvm::APFloat::operator<= ( const APFloat & RHS ) const

inline

Definition at line 1514 of file APFloat.h.

References llvm::APFloatBase::cmpEqual, llvm::APFloatBase::cmpLessThan, compare(), and RHS.

◆ operator=() [1/2]

APFloat & llvm::APFloat::operator= ( APFloat && RHS )

default

References RHS.

◆ operator=() [2/2]

APFloat & llvm::APFloat::operator= ( const APFloat & RHS )

default

References RHS.

◆ operator==()

bool llvm::APFloat::operator== ( const APFloat & RHS ) const

inline

Definition at line 1502 of file APFloat.h.

References llvm::APFloatBase::cmpEqual, compare(), and RHS.

◆ operator>()

bool llvm::APFloat::operator> ( const APFloat & RHS ) const

inline

Definition at line 1510 of file APFloat.h.

References llvm::APFloatBase::cmpGreaterThan, compare(), and RHS.

◆ operator>=()

bool llvm::APFloat::operator>= ( const APFloat & RHS ) const

inline

Definition at line 1519 of file APFloat.h.

References llvm::APFloatBase::cmpEqual, llvm::APFloatBase::cmpGreaterThan, compare(), and RHS.

◆ print()

void llvm::APFloat::print ( raw_ostream & OS ) const

Definition at line 6040 of file APFloat.cpp.

References toString().

Referenced by dump().

◆ Profile()

void llvm::APFloat::Profile ( FoldingSetNodeID & NID ) const

Used to insert APFloat objects, or objects that contain APFloat objects, into FoldingSets.

Definition at line 6053 of file APFloat.cpp.

References llvm::FoldingSetNodeID::Add(), and bitcastToAPInt().

◆ remainder()

opStatus llvm::APFloat::remainder ( const APFloat & RHS )

inline

Definition at line 1321 of file APFloat.h.

References assert(), getSemantics(), llvm_unreachable, and RHS.

Referenced by llvm::detail::DoubleAPFloat::remainder().

◆ roundToIntegral()

opStatus llvm::APFloat::roundToIntegral ( roundingMode RM )

inline

Definition at line 1352 of file APFloat.h.

References APFLOAT_DISPATCH_ON_SEMANTICS, and roundToIntegral().

Referenced by llvm::InstCombinerImpl::foldFCmpIntToFPConst(), roundToIntegral(), and llvm::detail::DoubleAPFloat::roundToIntegral().

◆ subtract()

opStatus llvm::APFloat::subtract	(	const APFloat &	RHS,
		roundingMode	RM )

inline

Definition at line 1294 of file APFloat.h.

References assert(), getSemantics(), llvm_unreachable, and RHS.

Referenced by llvm::ConstantFoldBinaryInstruction(), llvm::ConstantFoldFPBinOp(), llvm::SelectionDAG::foldConstantFPMath(), and llvm::ExecutionEngine::getConstantValue().

◆ toString()

void llvm::APFloat::toString	(	SmallVectorImpl< char > &	Str,
		unsigned	FormatPrecision = 0,
		unsigned	FormatMaxPadding = 3,
		bool	TruncateZero = true ) const

inline

Definition at line 1620 of file APFloat.h.

References APFLOAT_DISPATCH_ON_SEMANTICS, and toString().

Referenced by emitGlobalConstantFP(), print(), printConstant(), toString(), llvm::detail::DoubleAPFloat::toString(), and writeAPFloatInternal().

◆ frexp

APFloat frexp	(	const APFloat &	X,
		int &	Exp,
		roundingMode	RM )

friend

References X.

◆ hash_value

LLVM_ABI friend hash_code hash_value ( const APFloat & Arg )

friend

See friend declarations above.

These additional declarations are required in order to compile LLVM with IBM xlC compiler.

Definition at line 5924 of file APFloat.cpp.

References getSemantics(), hash_value, and llvm_unreachable.

Referenced by hash_value.

◆ ilogb

int ilogb ( const APFloat & Arg )

friend

Returns the exponent of the internal representation of the APFloat.

Because the radix of APFloat is 2, this is equivalent to floor(log2(x)). For special APFloat values, this returns special error codes:

NaN -> IEK_NaN 0 -> IEK_Zero Inf -> IEK_Inf

Definition at line 1692 of file APFloat.h.

References getSemantics(), llvm::ilogb(), and llvm_unreachable.

◆ scalbn

APFloat scalbn	(	APFloat	X,
		int	Exp,
		roundingMode	RM )

friend

References X.

Referenced by getExactInverse().

Member Data Documentation

◆ DoubleAPFloat

friend llvm::APFloat::DoubleAPFloat

Definition at line 1671 of file APFloat.h.

◆ IEEEFloat

friend llvm::APFloat::IEEEFloat

Definition at line 1670 of file APFloat.h.

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

include/llvm/ADT/APFloat.h
lib/Support/APFloat.cpp

Public Member Functions

Static Public Member Functions

Public Attributes

Friends

Additional Inherited Members

Detailed Description

Constructor & Destructor Documentation

◆ APFloat() [1/10]

◆ APFloat() [2/10]

◆ APFloat() [3/10]

◆ APFloat() [4/10]

◆ APFloat() [5/10]

◆ APFloat() [6/10]

◆ APFloat() [7/10]

◆ APFloat() [8/10]

◆ APFloat() [9/10]

◆ APFloat() [10/10]

◆ ~APFloat()

Member Function Documentation

◆ add()

◆ bitcastToAPInt()

◆ bitwiseIsEqual()

◆ changeSign()

◆ classify()

◆ clearSign()

◆ compare()

◆ compareAbsoluteValue()

◆ convert()

◆ convertFromAPInt()

◆ convertFromString()

◆ convertToDouble()

◆ convertToFloat()

◆ convertToHexString()

◆ convertToInteger() [1/2]

◆ convertToInteger() [2/2]

◆ copySign() [1/2]

◆ copySign() [2/2]

◆ divide()

◆ dump()

◆ fusedMultiplyAdd()

◆ getAllOnesValue()

◆ getCategory()

◆ getExactInverse()

◆ getExactLog2()

◆ getExactLog2Abs()

◆ getInf()

◆ getLargest()

◆ getNaN()

◆ getNaNPayload()

◆ getOne()

◆ getQNaN()

◆ getSemantics()

◆ getSmallest()

◆ getSmallestNormalized()

◆ getSNaN()

◆ getZero()

◆ hasSignificand()

◆ isDenormal()

◆ isExactlyValue()

◆ isFinite()

◆ isFiniteNonZero()

◆ isInfinity()

◆ isInteger()

◆ isLargest()

◆ isMinusOne()

◆ isNaN()

◆ isNegative()

◆ isNegInfinity()

◆ isNegPowerOf2()

◆ isNegZero()

◆ isNonZero()

◆ isNormal()

◆ isOne()

◆ isPosInfinity()

◆ isPosZero()

◆ isPowerOf2()

◆ isSignaling()

◆ isSmallest()

◆ isSmallestNormalized()

◆ isZero()