IR Namespace Reference

Data Structures
struct	Range
	a closed interval over integral domain More...

Typedefs
typedef signed long	TInt
typedef unsigned long	TUInt

Functions
Range	rngFromNum (TInt num)
TInt	extendSignedIntFromLeft (TInt num)
	insert ones as padding from left
void	chkRange (const Range &rng)
	this does nothing unless running a debug build
bool	operator== (const Range &a, const Range &b)
bool	operator!= (const Range &a, const Range &b)
TInt	invertInt (TInt)
	invert polarity of the number
Range	operator- (Range rng)
	invert polarity of the range
Range &	operator+= (Range &rng, const Range &other)
	add another range, but preserve boundary values if already reached
Range &	operator*= (Range &rng, const Range &other)
	multiply by another range, but preserve boundary values if already reached
Range &	operator&= (Range &rng, TInt mask)
	bitwise AND on range where the bitmask is a single number
Range &	operator<<= (Range &rng, TUInt)
Range &	operator>>= (Range &rng, TUInt)
Range &	operator-= (Range &rng, const Range &other)
	subtract another range, but preserve boundary values if already reached
Range	operator+ (Range rng, const Range &other)
Range	operator* (Range rng, const Range &other)
Range	operator- (Range rng, const Range &other)
Range	operator& (Range rng, TInt mask)
Range	operator<< (Range rng, TUInt n)
Range	operator>> (Range rng, TUInt n)
Range	join (const Range &rng1, const Range &rng2)
	return a range that covers both given ranges, preserve alignment if possible
bool	isRangeByNum (bool *pIsRange1, const Range &rng1, const Range &rng2)
	return true if exactly one of the given ranges represents a single number
bool	isCovered (const Range &small, const Range &big)
	true if the small range is inside the big one (sharing endpoints is fine)
bool	isSingular (const Range &)
	return true if the range contain exactly one number; break if no one at all
bool	isAligned (const Range &)
	return true if the range is non-trivially aligned
void	adjustAlignment (Range *)
	adjust the alignment so that the bounds are aligned
TUInt	widthOf (const Range &)
	return the count of integral numbers that the given range represents

Variables
const TInt	Int0
const TInt	Int1
const TInt	IntMin
const TInt	IntMax
const Range	FullRange

Typedef Documentation

typedef signed long TInt

Definition at line 31 of file intrange.hh.

typedef unsigned long TUInt

Definition at line 32 of file intrange.hh.

Function Documentation

void IR::adjustAlignment

(

Range *

)

adjust the alignment so that the bounds are aligned

void IR::chkRange

(

const Range &

rng

)

this does nothing unless running a debug build

TInt IR::extendSignedIntFromLeft

(

TInt

num

)

insert ones as padding from left

TInt IR::invertInt

(

TInt

)

invert polarity of the number

Referenced by operator-().

bool IR::isAligned

(

const Range &

)

return true if the range is non-trivially aligned

bool IR::isCovered	(	const Range &	small,
		const Range &	big
	)

true if the small range is inside the big one (sharing endpoints is fine)

bool IR::isRangeByNum	(	bool *	pIsRange1,
		const Range &	rng1,
		const Range &	rng2
	)

return true if exactly one of the given ranges represents a single number

bool IR::isSingular

(

const Range &

)

return true if the range contain exactly one number; break if no one at all

Referenced by traverseProgramVarsGeneric().

Range IR::join	(	const Range &	rng1,
		const Range &	rng2
	)

return a range that covers both given ranges, preserve alignment if possible

bool IR::operator!= ( const Range &  a, const Range &  b  )

inline

Definition at line 75 of file intrange.hh.

References operator==().

Range IR::operator& ( Range  rng, TInt  mask  )

inline

Definition at line 130 of file intrange.hh.

Range& IR::operator&=	(	Range &	rng,
		TInt	mask
	)

bitwise AND on range where the bitmask is a single number

Range IR::operator* ( Range  rng, const Range &  other  )

inline

Definition at line 118 of file intrange.hh.

Range& IR::operator*=	(	Range &	rng,
		const Range &	other
	)

multiply by another range, but preserve boundary values if already reached

Range IR::operator+ ( Range  rng, const Range &  other  )

inline

Definition at line 112 of file intrange.hh.

Range& IR::operator+=	(	Range &	rng,
		const Range &	other
	)

add another range, but preserve boundary values if already reached

Range IR::operator- ( Range  rng )

inline

invert polarity of the range

Definition at line 84 of file intrange.hh.

References Range::hi, invertInt(), and Range::lo.

Range IR::operator- ( Range  rng, const Range &  other  )

inline

Definition at line 124 of file intrange.hh.

Range& IR::operator-= ( Range &  rng, const Range &  other  )

inline

subtract another range, but preserve boundary values if already reached

Definition at line 106 of file intrange.hh.

Range IR::operator<< ( Range  rng, TUInt  n  )

inline

Definition at line 136 of file intrange.hh.

Range& IR::operator<<=	(	Range &	rng,
		TUInt
	)

bool IR::operator== ( const Range &  a, const Range &  b  )

inline

Definition at line 68 of file intrange.hh.

References Range::alignment, Range::hi, and Range::lo.

Referenced by operator!=().

Range IR::operator>> ( Range  rng, TUInt  n  )

inline

Definition at line 142 of file intrange.hh.

Range& IR::operator>>=	(	Range &	rng,
		TUInt
	)

Range IR::rngFromNum ( TInt  num )

inline

Definition at line 49 of file intrange.hh.

References Range::alignment, Range::hi, Int1, and Range::lo.

TUInt IR::widthOf

(

const Range &

)

return the count of integral numbers that the given range represents

Variable Documentation

const Range FullRange

const TInt Int0

const TInt Int1

Referenced by rngFromNum().

const TInt IntMax

const TInt IntMin