llvm::APFloatBase Class Reference

#include "llvm/ADT/APFloat.h"

Inheritance diagram for llvm::APFloatBase:

Public Types
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.

Static Public Member Functions
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 Public Attributes
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

Floating Point Semantics.
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 }
class	detail::IEEEFloat
class	detail::DoubleAPFloat
class	APFloat
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.

Detailed Description

Definition at line 150 of file APFloat.h.

Member Typedef Documentation

ExponentType

using llvm::APFloatBase::ExponentType = int32_t

A signed type to represent a floating point numbers unbiased exponent.

Definition at line 156 of file APFloat.h.

integerPart

typedef APInt::WordType llvm::APFloatBase::integerPart

Definition at line 152 of file APFloat.h.

roundingMode

using llvm::APFloatBase::roundingMode = llvm::RoundingMode

IEEE-754R 4.3: Rounding-direction attributes.

Definition at line 359 of file APFloat.h.

Member Enumeration Documentation

cmpResult

enum llvm::APFloatBase::cmpResult

IEEE-754R 5.11: Floating Point Comparison Relations.

Enumerator
cmpLessThan
cmpEqual
cmpGreaterThan
cmpUnordered

Definition at line 351 of file APFloat.h.

fltCategory

enum llvm::APFloatBase::fltCategory

Category of internally-represented number.

Enumerator
fcInfinity
fcNaN
fcNormal
fcZero

Definition at line 387 of file APFloat.h.

IlogbErrorKinds

enum llvm::APFloatBase::IlogbErrorKinds

Enumeration of ilogb error results.

Enumerator
IEK_Zero
IEK_NaN
IEK_Inf

Definition at line 400 of file APFloat.h.

opStatus

enum llvm::APFloatBase::opStatus

IEEE-754R 7: Default exception handling.

opUnderflow or opOverflow are always returned or-ed with opInexact.

APFloat models this behavior specified by IEEE-754: "For operations producing results in floating-point format, the default result of an operation that signals the invalid operation exception shall be a quiet NaN."

Enumerator
opOK
opInvalidOp
opDivByZero
opOverflow
opUnderflow
opInexact

Definition at line 377 of file APFloat.h.

Semantics

enum llvm::APFloatBase::Semantics

Enumerator
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

Definition at line 160 of file APFloat.h.

uninitializedTag

enum llvm::APFloatBase::uninitializedTag

Convenience enum used to construct an uninitialized APFloat.

Enumerator
uninitialized

Definition at line 395 of file APFloat.h.

Member Function Documentation

BFloat()

const fltSemantics & llvm::APFloatBase::BFloat ( )

inlinestatic

Definition at line 303 of file APFloat.h.

Referenced by EnumToSemantics(), llvm::AMDGPU::evaluateRcp(), llvm::SelectionDAG::FoldConstantArithmetic(), llvm::ConstantDataSequential::getElementAsAPFloat(), llvm::MVT::getFltSemantics(), getOneFP(), getOpFltSemantics(), getZeroFP(), llvm::ConstantFP::isValueValidForType(), llvm::NVPTXFloatMCExpr::printImpl(), llvm::APFixedPoint::promoteFloatSemantics(), SemanticsToEnum(), shrinkFPConstant(), and llvm::X86TargetLowering::X86TargetLowering().

Bogus()

const fltSemantics & llvm::APFloatBase::Bogus ( )

inlinestatic

A Pseudo fltsemantic used to construct APFloats that cannot conflict with anything real.

Definition at line 332 of file APFloat.h.

EnumToSemantics()

const llvm::fltSemantics & llvm::APFloatBase::EnumToSemantics ( Semantics S )

static

Definition at line 134 of file APFloat.cpp.

References BFloat(), Float4E2M1FN(), Float6E2M3FN(), Float6E3M2FN(), Float8E3M4(), Float8E4M3(), Float8E4M3B11FNUZ(), Float8E4M3FN(), Float8E4M3FNUZ(), Float8E5M2(), Float8E5M2FNUZ(), Float8E5M3FNU(), Float8E8M0FNU(), FloatTF32(), IEEEdouble(), IEEEhalf(), IEEEquad(), IEEEsingle(), llvm_unreachable, PPCDoubleDouble(), PPCDoubleDoubleLegacy(), S_BFloat, S_Float4E2M1FN, S_Float6E2M3FN, S_Float6E3M2FN, S_Float8E3M4, S_Float8E4M3, S_Float8E4M3B11FNUZ, S_Float8E4M3FN, S_Float8E4M3FNUZ, S_Float8E5M2, S_Float8E5M2FNUZ, S_Float8E5M3FNU, S_Float8E8M0FNU, S_FloatTF32, S_IEEEdouble, S_IEEEhalf, S_IEEEquad, S_IEEEsingle, S_PPCDoubleDouble, S_PPCDoubleDoubleLegacy, S_x87DoubleExtended, and x87DoubleExtended().

Referenced by llvm::TargetLowering::expandCONVERT_FROM_ARBITRARY_FP(), llvm::TargetLowering::expandCONVERT_TO_ARBITRARY_FP(), llvm::LLT::floatingPoint(), and llvm::getFltSemanticForLLT().

Float4E2M1FN()

const fltSemantics & llvm::APFloatBase::Float4E2M1FN ( )

inlinestatic

Definition at line 325 of file APFloat.h.

Referenced by EnumToSemantics(), and SemanticsToEnum().

Float6E2M3FN()

const fltSemantics & llvm::APFloatBase::Float6E2M3FN ( )

inlinestatic

Definition at line 324 of file APFloat.h.

Referenced by EnumToSemantics(), and SemanticsToEnum().

Float6E3M2FN()

const fltSemantics & llvm::APFloatBase::Float6E3M2FN ( )

inlinestatic

Definition at line 323 of file APFloat.h.

Referenced by EnumToSemantics(), and SemanticsToEnum().

Float8E3M4()

const fltSemantics & llvm::APFloatBase::Float8E3M4 ( )

inlinestatic

Definition at line 319 of file APFloat.h.

Referenced by EnumToSemantics(), and SemanticsToEnum().

Float8E4M3()

const fltSemantics & llvm::APFloatBase::Float8E4M3 ( )

inlinestatic

Definition at line 313 of file APFloat.h.

Referenced by EnumToSemantics(), and SemanticsToEnum().

Float8E4M3B11FNUZ()

const fltSemantics & llvm::APFloatBase::Float8E4M3B11FNUZ ( )

inlinestatic

Definition at line 316 of file APFloat.h.

Referenced by EnumToSemantics(), and SemanticsToEnum().

Float8E4M3FN()

const fltSemantics & llvm::APFloatBase::Float8E4M3FN ( )

inlinestatic

Definition at line 314 of file APFloat.h.

Referenced by EnumToSemantics(), and SemanticsToEnum().

Float8E4M3FNUZ()

const fltSemantics & llvm::APFloatBase::Float8E4M3FNUZ ( )

inlinestatic

Definition at line 315 of file APFloat.h.

Referenced by EnumToSemantics(), and SemanticsToEnum().

Float8E5M2()

const fltSemantics & llvm::APFloatBase::Float8E5M2 ( )

inlinestatic

Definition at line 311 of file APFloat.h.

Referenced by EnumToSemantics(), and SemanticsToEnum().

Float8E5M2FNUZ()

const fltSemantics & llvm::APFloatBase::Float8E5M2FNUZ ( )

inlinestatic

Definition at line 312 of file APFloat.h.

Referenced by EnumToSemantics(), and SemanticsToEnum().

Float8E5M3FNU()

const fltSemantics & llvm::APFloatBase::Float8E5M3FNU ( )

inlinestatic

Definition at line 322 of file APFloat.h.

Referenced by EnumToSemantics(), and SemanticsToEnum().

Float8E8M0FNU()

const fltSemantics & llvm::APFloatBase::Float8E8M0FNU ( )

inlinestatic

Definition at line 321 of file APFloat.h.

Referenced by EnumToSemantics(), llvm::APFloat::hasSignificand(), and SemanticsToEnum().

FloatTF32()

const fltSemantics & llvm::APFloatBase::FloatTF32 ( )

inlinestatic

Definition at line 320 of file APFloat.h.

Referenced by EnumToSemantics(), and SemanticsToEnum().

getArbitraryFPFormatSizeInBits()

unsigned llvm::APFloatBase::getArbitraryFPFormatSizeInBits ( StringRef Format )

static

Returns the size in bits of a valid arbitrary floating-point format string, or 0 if the string is not a valid format.

Covers every format accepted by isValidArbitraryFPFormat, not only those getArbitraryFPSemantics can currently lower.

Definition at line 6110 of file APFloat.cpp.

References llvm::StringSwitch< T, R >::Case(), llvm::StringSwitch< T, R >::Default(), llvm::Format, and getSizeInBits().

Referenced by isValidArbitraryFPFormat().

getArbitraryFPSemantics()

const fltSemantics * llvm::APFloatBase::getArbitraryFPSemantics ( StringRef Format )

static

Returns the fltSemantics for a given arbitrary FP format string, or nullptr if invalid.

Definition at line 6131 of file APFloat.cpp.

References llvm::StringSwitch< T, R >::Case(), llvm::StringSwitch< T, R >::Default(), and llvm::Format.

Referenced by computeKnownFPClass().

getSizeInBits()

unsigned llvm::APFloatBase::getSizeInBits ( const fltSemantics & Sem )

static

Returns the size of the floating point number (in bits) in the given semantics.

Definition at line 382 of file APFloat.cpp.

References llvm::fltSemantics::sizeInBits.

Referenced by llvm::MachineIRBuilder::buildFConstant(), llvm::TargetLowering::expandCONVERT_FROM_ARBITRARY_FP(), llvm::TargetLowering::expandCONVERT_TO_ARBITRARY_FP(), llvm::LLT::floatingPoint(), and getArbitraryFPFormatSizeInBits().

hasSignBitInMSB()

bool llvm::APFloatBase::hasSignBitInMSB ( const fltSemantics & semantics )

static

Definition at line 364 of file APFloat.cpp.

References llvm::fltSemantics::hasSignBitInMSB.

Referenced by llvm::InstCombinerImpl::visitAnd(), llvm::InstCombinerImpl::visitCallInst(), llvm::InstCombinerImpl::visitOr(), and llvm::InstCombinerImpl::visitXor().

IEEEdouble()

const fltSemantics & llvm::APFloatBase::IEEEdouble ( )

inlinestatic

Definition at line 305 of file APFloat.h.

Referenced by llvm::APFloat::APFloat(), checkCVTFixedPointOperandWithFBitsForVectors(), combineBitcast(), constantFoldFpUnary(), convertIntToDoubleImm(), emitDebugValueComment(), EnumToSemantics(), fixFuncEntryCount(), llvm::SelectionDAG::FoldConstantArithmetic(), getConstantVector(), getConstantVector(), llvm::ConstantDataSequential::getElementAsAPFloat(), llvm::getFltSemanticForLLT(), getFltSemantics(), llvm::MVT::getFltSemantics(), llvm::RISCVLoadFPImm::getLoadFPImm(), getOneFP(), getOpFltSemantics(), getZeroFP(), isInv2Pi(), isInv2Pi(), llvm::ConstantFP::isValueValidForType(), llvm::AMDGPULegalizerInfo::legalizeFEXPF64(), llvm::AMDGPULegalizerInfo::legalizeFroundeven(), llvm::AMDGPULegalizerInfo::legalizeRsqClampIntrinsic(), LLVMConstRealGetDouble(), llvm::LegalizerHelper::lowerFPTOUI(), llvm::AMDGPUTargetLowering::LowerFROUNDEVEN(), llvm::ARMAsmPrinter::lowerOperand(), LowerUINT_TO_FP_i64(), lowerUINT_TO_FP_vXi32(), llvm::SDNode::print_details(), llvm::NVPTXFloatMCExpr::printImpl(), llvm::WebAssemblyInstPrinter::printOperand(), llvm::APFixedPoint::promoteFloatSemantics(), SemanticsToEnum(), and shrinkFPConstant().

IEEEhalf()

const fltSemantics & llvm::APFloatBase::IEEEhalf ( )

inlinestatic

Definition at line 302 of file APFloat.h.

Referenced by canSafelyConvertTo16Bit(), checkCVTFixedPointOperandWithFBitsForVectors(), convertNvvmIntrinsicToLlvm(), EnumToSemantics(), llvm::AMDGPU::evaluateRcp(), llvm::SelectionDAG::FoldConstantArithmetic(), getConstantVector(), getConstantVector(), llvm::ConstantDataSequential::getElementAsAPFloat(), llvm::getFltSemanticForLLT(), getFltSemantics(), llvm::MVT::getFltSemantics(), llvm::RISCVLoadFPImm::getLoadFPImm(), getOneFP(), getOpFltSemantics(), getZeroFP(), llvm::GCNTTIImpl::instCombineIntrinsic(), isFPExtFromF16OrConst(), isInv2Pi(), isInv2Pi(), llvm::ConstantFP::isValueValidForType(), matchFPExtFromF16(), llvm::NVPTXFloatMCExpr::printImpl(), llvm::APFixedPoint::promoteFloatSemantics(), SemanticsToEnum(), llvm::NVPTXTargetLowering::shouldExpandAtomicRMWInIR(), shrinkFPConstant(), strictFPExtFromF16(), and llvm::X86TargetLowering::X86TargetLowering().

IEEEquad()

const fltSemantics & llvm::APFloatBase::IEEEquad ( )

inlinestatic

Definition at line 306 of file APFloat.h.

Referenced by EnumToSemantics(), llvm::SelectionDAG::FoldConstantArithmetic(), llvm::getFltSemanticForLLT(), llvm::MVT::getFltSemantics(), llvm::ConstantFP::isValueValidForType(), llvm::APFixedPoint::promoteFloatSemantics(), SemanticsToEnum(), llvm::SystemZVectorConstantInfo::SystemZVectorConstantInfo(), and llvm::X86TargetLowering::X86TargetLowering().

IEEEsingle()

const fltSemantics & llvm::APFloatBase::IEEEsingle ( )

inlinestatic

Definition at line 304 of file APFloat.h.

Referenced by llvm::APFloat::APFloat(), llvm::GCNTTIImpl::canSimplifyLegacyMulToMul(), llvm::checkConvertToNonDenormSingle(), checkCVTFixedPointOperandWithFBitsForVectors(), combineIntDivRem(), convertNvvmIntrinsicToLlvm(), llvm::convertToNonDenormSingle(), EnumToSemantics(), llvm::SelectionDAG::FoldConstantArithmetic(), llvm::generateReadImageInst(), getConstantVector(), getConstantVector(), llvm::ConstantDataSequential::getElementAsAPFloat(), getF32Constant(), llvm::getFltSemanticForLLT(), getFltSemantics(), llvm::MVT::getFltSemantics(), llvm::RISCVLoadFPImm::getLoadFPImm(), getOneFP(), getOpFltSemantics(), llvm::AMDGPULegalizerInfo::getScaledLogInput(), llvm::AMDGPUTargetLowering::getScaledLogInput(), getZeroFP(), llvm::Attributor::identifyDefaultAbstractAttributes(), isInv2Pi(), isInv2Pi(), llvm::ConstantFP::isValueValidForType(), llvm::AMDGPULegalizerInfo::legalizeFExp(), llvm::AMDGPULegalizerInfo::legalizeFlogCommon(), llvm::AMDGPULegalizerInfo::legalizeRsqClampIntrinsic(), llvm::AMDGPUTargetLowering::lowerFEXP(), llvm::LegalizerHelper::lowerFPTOUI(), lowerUINT_TO_FP_vXi32(), llvm::AMDGPUTargetLowering::needsDenormHandlingF32(), needsDenormHandlingF32(), llvm::SDNode::print_details(), llvm::NVPTXFloatMCExpr::printImpl(), llvm::WebAssemblyInstPrinter::printOperand(), llvm::APFixedPoint::promoteFloatSemantics(), SemanticsToEnum(), llvm::NVPTXTargetLowering::shouldExpandAtomicRMWInIR(), shrinkFPConstant(), llvm::pdb::Variant::toAPFloat(), llvm::NVPTXTargetLowering::useF32FTZ(), and valueHasFloatPrecision().

isIEEELikeFP()

bool llvm::APFloatBase::isIEEELikeFP ( const fltSemantics & semantics )

static

Definition at line 359 of file APFloat.cpp.

References S_IEEEquad, and SemanticsToEnum().

Referenced by llvm::KnownFPClass::bitcast(), llvm::computeConstantRange(), llvm::TargetLowering::expandIS_FPCLASS(), and isRepresentableAsExactInteger().

isLosslesslyConvertibleTo()

bool llvm::APFloatBase::isLosslesslyConvertibleTo ( const fltSemantics & From, const fltSemantics & To, bool IgnoreNaNs = false )

static

Returns whether converting a value from From to To is known to preserve all information.

If IgnoreNaNs is true, differences between NaN representations are ignored, but NaNs must remain NaNs and infinities must remain infinities.

Definition at line 236 of file APFloat.cpp.

References APFloat, llvm::APFloat::convert(), llvm::FiniteOnly, llvm::APFloat::getSmallest(), llvm::fltSemantics::hasSignedRepr, llvm::fltSemantics::hasZero, llvm::IEEE754, isRepresentableBy(), llvm::fltSemantics::nanEncoding, llvm::NanOnly, llvm::NegativeZero, llvm::fltSemantics::nonFiniteBehavior, and rmNearestTiesToEven.

isRepresentableAsNormalIn()

bool llvm::APFloatBase::isRepresentableAsNormalIn ( const fltSemantics & Src, const fltSemantics & Dst )

static

Definition at line 368 of file APFloat.cpp.

Referenced by computeKnownFPClass(), and llvm::KnownFPClass::fpext().

isRepresentableBy()

bool llvm::APFloatBase::isRepresentableBy ( const fltSemantics & A, const fltSemantics & B )

static

Definition at line 230 of file APFloat.cpp.

References A(), and B().

Referenced by llvm::APFloat::convertToDouble(), llvm::APFloat::convertToFloat(), and isLosslesslyConvertibleTo().

isValidArbitraryFPFormat()

bool llvm::APFloatBase::isValidArbitraryFPFormat ( StringRef Format )

static

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.

Definition at line 6127 of file APFloat.cpp.

References llvm::Format, and getArbitraryFPFormatSizeInBits().

PPCDoubleDouble()

const fltSemantics & llvm::APFloatBase::PPCDoubleDouble ( )

inlinestatic

Definition at line 307 of file APFloat.h.

Referenced by EnumToSemantics(), llvm::detail::frexp(), llvm::MVT::getFltSemantics(), llvm::ConstantFP::isValueValidForType(), llvm::detail::scalbn(), SemanticsToEnum(), and writeAPFloatInternal().

PPCDoubleDoubleLegacy()

const fltSemantics & llvm::APFloatBase::PPCDoubleDoubleLegacy ( )

inlinestatic

Definition at line 308 of file APFloat.h.

Referenced by EnumToSemantics(), and SemanticsToEnum().

semanticsHasInf()

bool llvm::APFloatBase::semanticsHasInf ( const fltSemantics & semantics )

static

Definition at line 351 of file APFloat.cpp.

References llvm::IEEE754, and llvm::fltSemantics::nonFiniteBehavior.

Referenced by computeKnownFPClass(), and ldexpSaturatingAddIsSafe().

semanticsHasNaN()

bool llvm::APFloatBase::semanticsHasNaN ( const fltSemantics & semantics )

static

Definition at line 355 of file APFloat.cpp.

References llvm::FiniteOnly, and llvm::fltSemantics::nonFiniteBehavior.

Referenced by computeKnownFPClass().

semanticsHasSignedRepr()

bool llvm::APFloatBase::semanticsHasSignedRepr ( const fltSemantics & semantics )

static

Definition at line 347 of file APFloat.cpp.

References llvm::fltSemantics::hasSignedRepr.

Referenced by computeKnownFPClass(), llvm::TargetLowering::expandCONVERT_FROM_ARBITRARY_FP(), and llvm::TargetLowering::expandCONVERT_TO_ARBITRARY_FP().

semanticsHasZero()

bool llvm::APFloatBase::semanticsHasZero ( const fltSemantics & semantics )

static

Definition at line 343 of file APFloat.cpp.

References llvm::fltSemantics::hasZero.

Referenced by computeKnownFPClass().

semanticsIntSizeInBits()

unsigned int llvm::APFloatBase::semanticsIntSizeInBits ( const fltSemantics & semantics, bool isSigned )

static

Definition at line 332 of file APFloat.cpp.

References isSigned(), and semanticsMaxExponent().

Referenced by isSaturatingMinMax().

semanticsMaxExponent()

APFloatBase::ExponentType llvm::APFloatBase::semanticsMaxExponent ( const fltSemantics & semantics )

static

Definition at line 322 of file APFloat.cpp.

References llvm::fltSemantics::maxExponent.

Referenced by llvm::FunctionComparator::cmpAPFloats(), llvm::computeConstantRange(), computeKnownFPClass(), llvm::InstCombinerImpl::foldICmpInstWithConstant(), llvm::SPIRVInstPrinter::printOpConstantVarOps(), and semanticsIntSizeInBits().

semanticsMinExponent()

APFloatBase::ExponentType llvm::APFloatBase::semanticsMinExponent ( const fltSemantics & semantics )

static

Definition at line 326 of file APFloat.cpp.

References llvm::fltSemantics::minExponent.

Referenced by llvm::FunctionComparator::cmpAPFloats(), llvm::computeConstantRange(), llvm::TargetLowering::expandCONVERT_FROM_ARBITRARY_FP(), and llvm::TargetLowering::expandCONVERT_TO_ARBITRARY_FP().

semanticsPrecision()

unsigned int llvm::APFloatBase::semanticsPrecision ( const fltSemantics & semantics )

static

Definition at line 318 of file APFloat.cpp.

References llvm::fltSemantics::precision.

Referenced by CastIntSETCCtoFP(), llvm::FunctionComparator::cmpAPFloats(), combineIntDivRem(), llvm::computeConstantRange(), llvm::TargetLowering::expandCONVERT_FROM_ARBITRARY_FP(), llvm::TargetLowering::expandCONVERT_TO_ARBITRARY_FP(), llvm::KnownFPClass::fmul(), foldFPtoI(), FoldIntToFPToInt(), getEstimate(), isRepresentableAsExactInteger(), llvm::KnownFPClass::ldexp(), lowerFTRUNC_FCEIL_FFLOOR_FROUND(), lowerVectorFTRUNC_FCEIL_FFLOOR_FROUND(), lowerVectorStrictFTRUNC_FCEIL_FFLOOR_FROUND(), llvm::SPIRVInstPrinter::printOpConstantVarOps(), and llvm::detail::IEEEFloat::roundToIntegral().

semanticsSizeInBits()

unsigned int llvm::APFloatBase::semanticsSizeInBits ( const fltSemantics & semantics )

static

Definition at line 329 of file APFloat.cpp.

References llvm::fltSemantics::sizeInBits.

Referenced by llvm::FunctionComparator::cmpAPFloats().

SemanticsToEnum()

APFloatBase::Semantics llvm::APFloatBase::SemanticsToEnum ( const llvm::fltSemantics & Sem )

static

Definition at line 183 of file APFloat.cpp.

References BFloat(), Float4E2M1FN(), Float6E2M3FN(), Float6E3M2FN(), Float8E3M4(), Float8E4M3(), Float8E4M3B11FNUZ(), Float8E4M3FN(), Float8E4M3FNUZ(), Float8E5M2(), Float8E5M2FNUZ(), Float8E5M3FNU(), Float8E8M0FNU(), FloatTF32(), IEEEdouble(), IEEEhalf(), IEEEquad(), IEEEsingle(), llvm_unreachable, PPCDoubleDouble(), PPCDoubleDoubleLegacy(), S_BFloat, S_Float4E2M1FN, S_Float6E2M3FN, S_Float6E3M2FN, S_Float8E3M4, S_Float8E4M3, S_Float8E4M3B11FNUZ, S_Float8E4M3FN, S_Float8E4M3FNUZ, S_Float8E5M2, S_Float8E5M2FNUZ, S_Float8E5M3FNU, S_Float8E8M0FNU, S_FloatTF32, S_IEEEdouble, S_IEEEhalf, S_IEEEquad, S_IEEEsingle, S_PPCDoubleDouble, S_PPCDoubleDoubleLegacy, S_x87DoubleExtended, and x87DoubleExtended().

Referenced by llvm::exp(), isIEEELikeFP(), and llvm::SIInstrInfo::isInlineConstant().

x87DoubleExtended()

const fltSemantics & llvm::APFloatBase::x87DoubleExtended ( )

inlinestatic

Definition at line 326 of file APFloat.h.

Referenced by EnumToSemantics(), llvm::ExecutionEngine::getConstantValue(), llvm::MVT::getFltSemantics(), llvm::ConstantFP::isValueValidForType(), SemanticsToEnum(), toStringAPFloat(), and llvm::X86TargetLowering::X86TargetLowering().

Friends And Related Symbol Documentation

APFloat

friend class APFloat

friend

Definition at line 299 of file APFloat.h.

References APFloat.

Referenced by APFloat, llvm::APFloat::convert(), llvm::exp(), llvm::APFloat::getAllOnesValue(), and isLosslesslyConvertibleTo().

detail::DoubleAPFloat

friend class detail::DoubleAPFloat

friend

Definition at line 298 of file APFloat.h.

detail::IEEEFloat

friend class detail::IEEEFloat

friend

Definition at line 297 of file APFloat.h.

Member Data Documentation

integerPartWidth

unsigned llvm::APFloatBase::integerPartWidth = APInt::APINT_BITS_PER_WORD

staticconstexpr

Definition at line 153 of file APFloat.h.

Referenced by llvm::lostFractionThroughTruncation(), llvm::partAsHex(), llvm::partCountForBits(), and llvm::ulpsFromBoundary().

rmNearestTiesToAway

roundingMode llvm::APFloatBase::rmNearestTiesToAway

staticconstexpr

Initial value:

=
                                                RoundingMode::NearestTiesToAway

Definition at line 366 of file APFloat.h.

Referenced by constantFoldFpUnary(), and llvm::FixedPointSemantics::fitsInFloatSemantics().

rmNearestTiesToEven

roundingMode llvm::APFloatBase::rmNearestTiesToEven

staticconstexpr

Initial value:

=
                                                RoundingMode::NearestTiesToEven

Definition at line 361 of file APFloat.h.

Referenced by llvm::APFloat::APFloat(), llvm::MachineIRBuilder::buildFConstant(), canLosslesslyConvertToFPType(), llvm::checkConvertToNonDenormSingle(), llvm::ConstantFoldBinaryInstruction(), llvm::ConstantFoldCastInstruction(), llvm::ConstantFoldFPBinOp(), constantFoldFpUnary(), llvm::ConstantFoldIntToFloat(), llvm::APFloat::convertToDouble(), llvm::APFixedPoint::convertToFloat(), llvm::APFloat::convertToFloat(), llvm::convertToNonDenormSingle(), emitDebugValueComment(), llvm::exp(), llvm::TargetLowering::expandFP_TO_UINT(), fitsInFPType(), fixFuncEntryCount(), llvm::SelectionDAG::FoldConstantArithmetic(), llvm::SelectionDAG::foldConstantFPMath(), foldFCmpFpTrunc(), llvm::InstCombinerImpl::foldFCmpIntToFPConst(), foldFPToIntToFP(), foldFrexpOfSelect(), llvm::InstCombinerImpl::foldICmpInstWithConstant(), llvm::ConstantFP::get(), llvm::StringRef::getAsDouble(), getConstantFloat(), llvm::SelectionDAG::getConstantFP(), llvm::ExecutionEngine::getConstantValue(), llvm::nvvm::GetFAddRoundingMode(), llvm::nvvm::GetFDivRoundingMode(), llvm::nvvm::GetFMARoundingMode(), llvm::nvvm::GetFMulRoundingMode(), llvm::nvvm::GetFPToIntegerRoundingMode(), llvm::RISCVLoadFPImm::getLoadFPImm(), llvm::SelectionDAG::getNode(), llvm::nvvm::GetRCPRoundingMode(), llvm::harrisonUlp(), llvm::detail::IEEEFloat::ilogb, llvm::GCNTTIImpl::instCombineIntrinsic(), llvm::APFloat::isExactlyValue(), llvm::ConstantFP::isExactlyValue(), isFPExtFromF16OrConst(), isLosslesslyConvertibleTo(), llvm::ConstantFP::isValueValidForType(), llvm::ConstantFPSDNode::isValueValidForType(), ldexpSaturatingAddIsSafe(), LLVMConstRealGetDouble(), llvm::LegalizerHelper::lowerFPTOUI(), LowerFROUND(), lowerFTRUNC_FCEIL_FFLOOR_FROUND(), lowerVectorFTRUNC_FCEIL_FFLOOR_FROUND(), lowerVectorStrictFTRUNC_FCEIL_FFLOOR_FROUND(), llvm::CombinerHelper::matchConstantFoldFMA(), matchFPExtFromF16(), llvm::APFloat::operator*(), llvm::APFloat::operator+(), llvm::APFloat::operator-(), llvm::APFloat::operator/(), llvm::AMDGPUTargetLowering::PerformDAGCombine(), llvm::NVPTXFloatMCExpr::printImpl(), strictFPExtFromF16(), toString(), valueHasFloatPrecision(), llvm::InstCombinerImpl::visitCallInst(), llvm::InstCombinerImpl::visitFCmpInst(), and llvm::X86TargetLowering::X86TargetLowering().

rmTowardNegative

roundingMode llvm::APFloatBase::rmTowardNegative = RoundingMode::TowardNegative

staticconstexpr

Definition at line 364 of file APFloat.h.

Referenced by constantFoldFpUnary(), llvm::SelectionDAG::FoldConstantArithmetic(), llvm::nvvm::GetFAddRoundingMode(), llvm::nvvm::GetFDivRoundingMode(), llvm::nvvm::GetFMARoundingMode(), llvm::nvvm::GetFMulRoundingMode(), llvm::nvvm::GetFPToIntegerRoundingMode(), and llvm::nvvm::GetRCPRoundingMode().

rmTowardPositive

roundingMode llvm::APFloatBase::rmTowardPositive = RoundingMode::TowardPositive

staticconstexpr

Definition at line 363 of file APFloat.h.

Referenced by constantFoldFpUnary(), llvm::SelectionDAG::FoldConstantArithmetic(), llvm::nvvm::GetFAddRoundingMode(), llvm::nvvm::GetFDivRoundingMode(), llvm::nvvm::GetFMARoundingMode(), llvm::nvvm::GetFMulRoundingMode(), llvm::nvvm::GetFPToIntegerRoundingMode(), and llvm::nvvm::GetRCPRoundingMode().

rmTowardZero

roundingMode llvm::APFloatBase::rmTowardZero = RoundingMode::TowardZero

staticconstexpr

Definition at line 365 of file APFloat.h.

Referenced by canSafelyConvertTo16Bit(), llvm::CheckFixedPointOperandConstant(), llvm::ConstantFoldCastInstruction(), constantFoldFpUnary(), llvm::APFixedPoint::convertToFloat(), ConvertToSInt(), llvm::TargetLowering::expandFP_TO_INT_SAT(), llvm::SelectionDAG::FoldConstantArithmetic(), llvm::InstCombinerImpl::foldFCmpIntToFPConst(), foldFPtoI(), foldFPToIntToFP(), llvm::BuildVectorSDNode::getConstantFPSplatPow2ToLog2Int(), llvm::ExecutionEngine::getConstantValue(), llvm::APFloat::getExactInverse(), llvm::nvvm::GetFAddRoundingMode(), llvm::nvvm::GetFDivRoundingMode(), llvm::nvvm::GetFMARoundingMode(), llvm::nvvm::GetFMulRoundingMode(), llvm::nvvm::GetFPToIntegerRoundingMode(), llvm::APFixedPoint::getFromFloatValue(), llvm::nvvm::GetRCPRoundingMode(), llvm::MCSchedModel::getResourceBufferSize(), llvm::GCNTTIImpl::instCombineIntrinsic(), llvm::PPCTargetLowering::isFPImmLegal(), isMinMaxCmpSelectEliminable(), llvm::LegalizerHelper::lowerFPTOINT_SAT(), llvm::ARMAsmPrinter::lowerOperand(), and PerformVMulVCTPCombine().

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

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