#include "llvm/ADT/APFloat.h"
#include "llvm/ADT/APSInt.h"
#include "llvm/ADT/ArrayRef.h"
#include "llvm/ADT/FoldingSet.h"
#include "llvm/ADT/Hashing.h"
#include "llvm/ADT/StringExtras.h"
#include "llvm/ADT/StringRef.h"
#include "llvm/Config/llvm-config.h"
#include "llvm/Support/Debug.h"
#include "llvm/Support/ErrorHandling.h"
#include "llvm/Support/MathExtras.h"
#include "llvm/Support/raw_ostream.h"
#include <cstring>
#include <limits.h>

Include dependency graph for APFloat.cpp:

Classes
struct	llvm::fltSemantics

struct	llvm::decimalInfo

Namespaces
	llvm
	This class represents lattice values for constants.

	llvm::detail
	Implementation details of the pass manager interfaces.

Macros
#define	APFLOAT_DISPATCH_ON_SEMANTICS(METHOD_CALL)

#define	PackCategoriesIntoKey(_lhs, _rhs) ((_lhs) * 4 + (_rhs))
	A macro used to combine two fcCategory enums into one key which can be used in a switch statement to classify how the interaction of two APFloat's categories affects an operation. More...

Functions
static unsigned int	llvm::partCountForBits (unsigned int bits)

static unsigned int	llvm::decDigitValue (unsigned int c)

static int	llvm::readExponent (StringRef::iterator begin, StringRef::iterator end)

static int	llvm::totalExponent (StringRef::iterator p, StringRef::iterator end, int exponentAdjustment)

static StringRef::iterator	llvm::skipLeadingZeroesAndAnyDot (StringRef::iterator begin, StringRef::iterator end, StringRef::iterator *dot)

static void	llvm::interpretDecimal (StringRef::iterator begin, StringRef::iterator end, decimalInfo *D)

static lostFraction	llvm::trailingHexadecimalFraction (StringRef::iterator p, StringRef::iterator end, unsigned int digitValue)

static lostFraction	llvm::lostFractionThroughTruncation (const APFloatBase::integerPart *parts, unsigned int partCount, unsigned int bits)

static lostFraction	llvm::shiftRight (APFloatBase::integerPart *dst, unsigned int parts, unsigned int bits)

static lostFraction	llvm::combineLostFractions (lostFraction moreSignificant, lostFraction lessSignificant)

static unsigned int	llvm::HUerrBound (bool inexactMultiply, unsigned int HUerr1, unsigned int HUerr2)

static APFloatBase::integerPart	llvm::ulpsFromBoundary (const APFloatBase::integerPart *parts, unsigned int bits, bool isNearest)

static unsigned int	llvm::powerOf5 (APFloatBase::integerPart *dst, unsigned int power)

static unsigned int	llvm::partAsHex (char dst, APFloatBase::integerPart part, unsigned int count, const char hexDigitChars)

static char *	llvm::writeUnsignedDecimal (char *dst, unsigned int n)

static char *	llvm::writeSignedDecimal (char *dst, int value)

hash_code	llvm::detail::hash_value (const IEEEFloat &Arg)

int	llvm::detail::ilogb (const IEEEFloat &Arg)

IEEEFloat	llvm::detail::scalbn (IEEEFloat X, int Exp, IEEEFloat::roundingMode)

IEEEFloat	llvm::detail::frexp (const IEEEFloat &Val, int &Exp, IEEEFloat::roundingMode RM)

hash_code	llvm::detail::hash_value (const DoubleAPFloat &Arg)

DoubleAPFloat	llvm::detail::scalbn (DoubleAPFloat Arg, int Exp, APFloat::roundingMode RM)

DoubleAPFloat	llvm::detail::frexp (const DoubleAPFloat &Arg, int &Exp, APFloat::roundingMode RM)

hash_code	llvm::hash_value (const APFloat &Arg)
	See friend declarations above. More...

Variables
static const fltSemantics	llvm::semIEEEhalf = {15, -14, 11, 16}

static const fltSemantics	llvm::semIEEEsingle = {127, -126, 24, 32}

static const fltSemantics	llvm::semIEEEdouble = {1023, -1022, 53, 64}

static const fltSemantics	llvm::semIEEEquad = {16383, -16382, 113, 128}

static const fltSemantics	llvm::semX87DoubleExtended = {16383, -16382, 64, 80}

static const fltSemantics	llvm::semBogus = {0, 0, 0, 0}

static const fltSemantics	llvm::semPPCDoubleDouble = {-1, 0, 0, 0}

static const fltSemantics	llvm::semPPCDoubleDoubleLegacy

const unsigned int	llvm::maxExponent = 16383

const unsigned int	llvm::maxPrecision = 113

const unsigned int	llvm::maxPowerOfFiveExponent = maxExponent + maxPrecision - 1

const unsigned int	llvm::maxPowerOfFiveParts = 2 + ((maxPowerOfFiveExponent * 815) / (351 * APFloatBase::integerPartWidth))

static const char	llvm::hexDigitsLower [] = "0123456789abcdef0"

static const char	llvm::hexDigitsUpper [] = "0123456789ABCDEF0"

static const char	llvm::infinityL [] = "infinity"

static const char	llvm::infinityU [] = "INFINITY"

static const char	llvm::NaNL [] = "nan"

static const char	llvm::NaNU [] = "NAN"

Macro Definition Documentation

◆ APFLOAT_DISPATCH_ON_SEMANTICS

#define APFLOAT_DISPATCH_ON_SEMANTICS ( METHOD_CALL )

Value:

do {                                                                         \
    if (usesLayout<IEEEFloat>(getSemantics()))                                 \
      return U.IEEE.METHOD_CALL;                                               \
    if (usesLayout<DoubleAPFloat>(getSemantics()))                             \
      return U.Double.METHOD_CALL;                                             \
    llvm_unreachable("Unexpected semantics");                                  \
  } while (false)

Definition at line 30 of file APFloat.cpp.

Referenced by llvm::APFloat::convertFromString().

◆ PackCategoriesIntoKey

#define PackCategoriesIntoKey	(	_lhs,
		_rhs
	)	((_lhs) * 4 + (_rhs))

A macro used to combine two fcCategory enums into one key which can be used in a switch statement to classify how the interaction of two APFloat's categories affects an operation.

TODO: If clang source code is ever allowed to use constexpr in its own codebase, change this into a static inline function.

Definition at line 47 of file APFloat.cpp.

Referenced by llvm::detail::IEEEFloat::compare(), and llvm::detail::IEEEFloat::compareAbsoluteValue().

Classes

Namespaces

Macros

Functions

Variables

Macro Definition Documentation

◆ APFLOAT_DISPATCH_ON_SEMANTICS

◆ PackCategoriesIntoKey