LLVM 22.0.0git
Public Member Functions | Static Public Member Functions | Public Attributes | Friends | List of all members
llvm::APFloat Class Reference

#include "llvm/ADT/APFloat.h"

Inheritance diagram for llvm::APFloat:
[legend]

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)
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
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
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
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

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 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 & 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)

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
typedef int32_t ExponentType
 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_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 940 of file APFloat.h.

Constructor & Destructor Documentation

◆ APFloat() [1/10]

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

Definition at line 1039 of file APFloat.h.

◆ APFloat() [2/10]

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

Definition at line 5982 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 1041 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 1046 of file APFloat.h.

References llvm::APFloatBase::uninitialized.

◆ APFloat() [6/10]

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

Definition at line 1048 of file APFloat.h.

References I.

◆ APFloat() [7/10]

llvm::APFloat::APFloat ( double d)
inlineexplicit

Definition at line 1049 of file APFloat.h.

References llvm::APFloatBase::IEEEdouble().

◆ APFloat() [8/10]

llvm::APFloat::APFloat ( float f)
inlineexplicit

Definition at line 1050 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 1163 of file APFloat.h.

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

Referenced by llvm::ConstantFoldBinaryInstruction(), llvm::ConstantFoldFPBinOp(), llvm::SelectionDAG::FoldConstantArithmetic(), 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 1335 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(), llvm::GCNTTIImpl::instCombineIntrinsic(), llvm::RISCVLegalizerInfo::legalizeCustom(), llvm::LegalizerHelper::lowerISFPCLASS(), llvm::CombinerHelper::matchCombineUnmergeConstant(), 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 1396 of file APFloat.h.

References getSemantics(), llvm_unreachable, and RHS.

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

◆ changeSign()

void llvm::APFloat::changeSign ( )
inline

Definition at line 1279 of file APFloat.h.

References APFLOAT_DISPATCH_ON_SEMANTICS, and changeSign().

Referenced by changeSign(), clearSign(), copySign(), llvm::PPCInstrInfo::finalizeInsInstrs(), llvm::TargetLowering::getNegatedExpression(), llvm::SelectionDAG::getNeutralElement(), getOne(), llvm::isNeutralConstant(), and llvm::X86TargetLowering::X86TargetLowering().

◆ classify()

FPClassTest llvm::APFloat::classify ( ) const

Return the FPClassTest which will return true for the value.

Definition at line 5989 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 1280 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 1386 of file APFloat.h.

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

Referenced by fmed3AMDGCN(), operator!=(), operator<(), operator<=(), operator==(), operator>(), and operator>=().

◆ convert()

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

Definition at line 6060 of file APFloat.cpp.

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

Referenced by 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::getAPFloatFromSize(), llvm::SelectionDAG::getConstantFP(), llvm::APFixedPoint::getFromFloatValue(), llvm::RISCVLoadFPImm::getLoadFPImm(), llvm::GCNTTIImpl::instCombineIntrinsic(), isExactlyValue(), llvm::ConstantFP::isExactlyValue(), isFPExtFromF16OrConst(), llvm::ConstantFP::isValueValidForType(), llvm::ConstantFPSDNode::isValueValidForType(), LLVMConstRealGetDouble(), LowerFROUND(), llvm::ARMAsmPrinter::lowerOperand(), matchFPExtFromF16(), llvm::NVPTXFloatMCExpr::printImpl(), strictFPExtFromF16(), llvm::InstCombinerImpl::visitFCmpInst(), writeAPFloatInternal(), and llvm::X86TargetLowering::X86TargetLowering().

◆ convertFromAPInt()

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

Definition at line 1329 of file APFloat.h.

References APFLOAT_DISPATCH_ON_SEMANTICS, and convertFromAPInt().

Referenced by llvm::ConstantFoldCastInstruction(), llvm::ConstantFoldIntToFloat(), convertFromAPInt(), llvm::TargetLowering::expandFP_TO_INT_SAT(), llvm::TargetLowering::expandFP_TO_UINT(), llvm::SelectionDAG::FoldConstantArithmetic(), 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 )

Definition at line 5969 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 6119 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(), LLVMConstRealGetDouble(), llvm::ARMAsmPrinter::lowerOperand(), and writeAPFloatInternal().

◆ 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 6150 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::FPMathOperator::getFPAccuracy(), insertSpirvDecorations(), and llvm::SPIRVMCInstLower::lower().

◆ convertToHexString()

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

Definition at line 1421 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 6107 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 1314 of file APFloat.h.

References APFLOAT_DISPATCH_ON_SEMANTICS, and convertToInteger().

Referenced by checkCVTFixedPointOperandWithFBits(), convertToInteger(), convertToInteger(), ConvertToSInt(), llvm::BuildVectorSDNode::getConstantFPSplatPow2ToLog2Int(), llvm::ExecutionEngine::getConstantValue(), getExactInteger(), 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 1291 of file APFloat.h.

◆ copySign() [2/2]

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

Definition at line 1284 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 1190 of file APFloat.h.

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

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

◆ dump()

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

Definition at line 6097 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 1217 of file APFloat.h.

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

Referenced by llvm::SelectionDAG::FoldConstantArithmetic(), 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 6086 of file APFloat.cpp.

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

Referenced by llvm::Constant::getAllOnesValue(), and lowerShuffleAsBitMask().

◆ getCategory()

fltCategory llvm::APFloat::getCategory ( ) const
inline

Definition at line 1438 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 6002 of file APFloat.cpp.

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

Referenced by checkCVTFixedPointOperandWithFBits(), and PerformVMulVCTPCombine().

◆ getExactLog2()

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

Definition at line 1486 of file APFloat.h.

References getExactLog2Abs(), and isNegative().

◆ getExactLog2Abs()

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

Definition at line 1479 of file APFloat.h.

References APFLOAT_DISPATCH_ON_SEMANTICS, and getExactLog2Abs().

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

◆ getInf()

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

Factory for Positive and Negative Infinity.

Parameters
NegativeTrue iff the number should be negative.

Definition at line 1080 of file APFloat.h.

References llvm::APFloatBase::uninitialized.

Referenced by llvm::ConstantFPRange::add(), canonicalizeRange(), computeKnownBitsFromOperator(), computeKnownFPClass(), llvm::ConstantFPRange::div(), llvm::TargetLowering::expandIS_FPCLASS(), llvm::InstCombinerImpl::foldICmpAndConstConst(), foldLogOpOfMaskedICmps_NotAllZeros_BMask_Mixed(), llvm::ConstantFP::getInfinity(), llvm::AMDGPUTargetLowering::getIsFinite(), llvm::ConstantFPRange::getNaNOnly(), llvm::SelectionDAG::getNeutralElement(), llvm::ConstantFPRange::getNonNaN(), llvm::harrisonUlp(), llvm::isNeutralConstant(), llvm::AMDGPULegalizerInfo::legalizeFExp(), llvm::AMDGPULegalizerInfo::legalizeFFREXP(), llvm::AMDGPULegalizerInfo::legalizeFlogCommon(), llvm::AMDGPUTargetLowering::lowerFEXP(), lowerFREM(), llvm::LegalizerHelper::lowerISFPCLASS(), llvm::ConstantFPRange::makeAllowedFCmpRegion(), llvm::fuzzerop::makeConstantsWithType(), makeGreaterThan(), makeLessThan(), and llvm::ConstantFPRange::mul().

◆ 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 1120 of file APFloat.h.

References llvm::APFloatBase::uninitialized.

Referenced by computeKnownFPClass(), llvm::TargetLowering::expandIS_FPCLASS(), llvm::InstCombinerImpl::foldFCmpIntToFPConst(), llvm::ConstantFPRange::getFinite(), llvm::SelectionDAG::getNeutralElement(), llvm::getReductionIdentity(), llvm::isNeutralConstant(), 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 1091 of file APFloat.h.

References getQNaN().

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

◆ getOne()

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

Factory for Positive and Negative One.

Parameters
NegativeTrue iff the number should be negative.

Definition at line 1070 of file APFloat.h.

References changeSign().

Referenced by getExactInverse(), getOneFP(), llvm::harrisonUlp(), llvm::isMathLibCallNoop(), and llvm::detail::DoubleAPFloat::roundToIntegral().

◆ getQNaN()

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

Factory for QNaN values.

Definition at line 1102 of file APFloat.h.

References llvm::APFloatBase::uninitialized.

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

◆ getSemantics()

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

Definition at line 1439 of file APFloat.h.

Referenced by add(), llvm::ConstantFPRange::add(), bitwiseIsEqual(), llvm::MachineIRBuilder::buildFConstant(), compare(), constantFoldFpUnary(), llvm::ConstantFPRange::contains(), convert(), convertToDouble(), convertToFloat(), divide(), flushDenormalConstant(), fusedMultiplyAdd(), getExactInverse(), llvm::RISCVLoadFPImm::getLoadFPImm(), hash_value, ilogb, llvm::GCNTTIImpl::instCombineIntrinsic(), isExactlyValue(), llvm::ConstantFP::isValueValidForType(), mod(), multiply(), llvm::AMDGPUTargetLowering::performRcpCombine(), remainder(), subtract(), llvm::SystemZVectorConstantInfo::SystemZVectorConstantInfo(), and writeAPFloatInternal().

◆ 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 1130 of file APFloat.h.

References llvm::APFloatBase::uninitialized.

Referenced by llvm::ConstantFPRange::div(), llvm::harrisonUlp(), 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 1140 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 1110 of file APFloat.h.

References llvm::APFloatBase::uninitialized.

Referenced by llvm::ConstantFP::getSNaN(), and writeAPFloatInternal().

◆ getZero()

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

Factory for Positive and Negative Zero.

Parameters
NegativeTrue iff the number should be negative.

Definition at line 1061 of file APFloat.h.

References llvm::APFloatBase::uninitialized.

Referenced by llvm::ConstantFPRange::abs(), computeKnownFPClass(), llvm::ConstantFPRange::div(), 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 1155 of file APFloat.h.

References llvm::APFloatBase::Float8E8M0FNU().

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

◆ isDenormal()

bool llvm::APFloat::isDenormal ( ) const
inline

Definition at line 1432 of file APFloat.h.

References APFLOAT_DISPATCH_ON_SEMANTICS, and isDenormal().

Referenced by llvm::checkConvertToNonDenormSingle(), classify(), llvm::convertToNonDenormSingle(), 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 1414 of file APFloat.h.

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

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

◆ isFinite()

bool llvm::APFloat::isFinite ( ) const
inline

Definition at line 1436 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 1441 of file APFloat.h.

References isFinite(), and isZero().

Referenced by getExactInverse(), and isNormal().

◆ isInfinity()

bool llvm::APFloat::isInfinity ( ) const
inline

Definition at line 1428 of file APFloat.h.

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

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

◆ isInteger()

bool llvm::APFloat::isInteger ( ) const
inline

Definition at line 1448 of file APFloat.h.

References APFLOAT_DISPATCH_ON_SEMANTICS, and isInteger().

Referenced by isInteger(), and isKnownIntegral().

◆ isLargest()

bool llvm::APFloat::isLargest ( ) const
inline

Definition at line 1447 of file APFloat.h.

References APFLOAT_DISPATCH_ON_SEMANTICS, and isLargest().

Referenced by isLargest(), and OptimizeConstMinMax().

◆ isNaN()

bool llvm::APFloat::isNaN ( ) const
inline

Definition at line 1429 of file APFloat.h.

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

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

◆ isNegative()

bool llvm::APFloat::isNegative ( ) const
inline

Definition at line 1431 of file APFloat.h.

Referenced by classify(), clearSign(), copySign(), llvm::GenericFloatingPointPredicateUtils< SSAContext >::fcmpImpliesClass(), flushDenormalConstant(), llvm::detail::frexp(), getExactInverse(), getExactLog2(), llvm::RISCVLoadFPImm::getLoadFPImm(), isNegInfinity(), isNegZero(), isPosInfinity(), isPosZero(), OptimizeConstMinMax(), llvm::detail::DoubleAPFloat::roundToIntegral(), llvm::InstCombinerImpl::visitCallInst(), llvm::InstCombinerImpl::visitFMul(), and writeAPFloatInternal().

◆ isNegInfinity()

bool llvm::APFloat::isNegInfinity ( ) const
inline

Definition at line 1445 of file APFloat.h.

References isInfinity(), and isNegative().

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

◆ isNegZero()

bool llvm::APFloat::isNegZero ( ) const
inline

Definition at line 1443 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 1440 of file APFloat.h.

References isZero().

◆ isNormal()

bool llvm::APFloat::isNormal ( ) const
inline

Definition at line 1435 of file APFloat.h.

References isDenormal(), and isFiniteNonZero().

Referenced by classify().

◆ isPosInfinity()

bool llvm::APFloat::isPosInfinity ( ) const
inline

Definition at line 1444 of file APFloat.h.

References isInfinity(), and isNegative().

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

◆ isPosZero()

bool llvm::APFloat::isPosZero ( ) const
inline

Definition at line 1442 of file APFloat.h.

References isNegative(), and isZero().

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

◆ isSignaling()

bool llvm::APFloat::isSignaling ( ) const
inline

Definition at line 1433 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 1446 of file APFloat.h.

References APFLOAT_DISPATCH_ON_SEMANTICS, and isSmallest().

Referenced by isSmallest().

◆ isSmallestNormalized()

bool llvm::APFloat::isSmallestNormalized ( ) const
inline

Definition at line 1450 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 1427 of file APFloat.h.

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

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

◆ 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 1298 of file APFloat.h.

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

◆ mod()

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

Definition at line 1208 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 1181 of file APFloat.h.

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

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

◆ needsCleanup()

bool llvm::APFloat::needsCleanup ( ) const
inline

Definition at line 1056 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 1236 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 1364 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 1265 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 1249 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 1241 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 1257 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 1273 of file APFloat.h.

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

◆ operator<()

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

Definition at line 1366 of file APFloat.h.

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

◆ operator<=()

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

Definition at line 1374 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 1362 of file APFloat.h.

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

◆ operator>()

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

Definition at line 1370 of file APFloat.h.

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

◆ operator>=()

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

Definition at line 1379 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 6090 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 6103 of file APFloat.cpp.

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

◆ remainder()

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

Definition at line 1199 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 1230 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 1172 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 1460 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 5974 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 1516 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 1495 of file APFloat.h.

◆ IEEEFloat

friend llvm::APFloat::IEEEFloat

Definition at line 1494 of file APFloat.h.

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