llvm::APIntOps Namespace Reference

Functions
APInt	smin (const APInt &A, const APInt &B)
	Determine the smaller of two APInts considered to be signed.
APInt	smax (const APInt &A, const APInt &B)
	Determine the larger of two APInts considered to be signed.
APInt	umin (const APInt &A, const APInt &B)
	Determine the smaller of two APInts considered to be signed.
APInt	umax (const APInt &A, const APInt &B)
	Determine the larger of two APInts considered to be unsigned.
bool	isIntN (unsigned N, const APInt &APIVal)
	Check if the specified APInt has a N-bits unsigned integer value.
bool	isSignedIntN (unsigned N, const APInt &APIVal)
	Check if the specified APInt has a N-bits signed integer value.
bool	isMask (unsigned numBits, const APInt &APIVal)
bool	isShiftedMask (unsigned numBits, const APInt &APIVal)
	Return true if the argument APInt value contains a sequence of ones with the remainder zero.
APInt	byteSwap (const APInt &APIVal)
	Returns a byte-swapped representation of the specified APInt Value.
unsigned	logBase2 (const APInt &APIVal)
	Returns the floor log base 2 of the specified APInt value.
APInt	GreatestCommonDivisor (const APInt &Val1, const APInt &Val2)
	Compute GCD of two APInt values.
double	RoundAPIntToDouble (const APInt &APIVal)
	Converts the given APInt to a double value.
double	RoundSignedAPIntToDouble (const APInt &APIVal)
	Converts the given APInt to a double value.
float	RoundAPIntToFloat (const APInt &APIVal)
	Converts the given APInt to a float vlalue.
float	RoundSignedAPIntToFloat (const APInt &APIVal)
	Converts the given APInt to a float value.
APInt	RoundDoubleToAPInt (double Double, unsigned width)
	Converts the given double value into a APInt.
APInt	RoundFloatToAPInt (float Float, unsigned width)
	Converts a float value into a APInt.
APInt	ashr (const APInt &LHS, unsigned shiftAmt)
	Arithmetic right-shift function.
APInt	lshr (const APInt &LHS, unsigned shiftAmt)
	Logical right-shift function.
APInt	shl (const APInt &LHS, unsigned shiftAmt)
	Left-shift function.
APInt	sdiv (const APInt &LHS, const APInt &RHS)
	Signed division function for APInt.
APInt	udiv (const APInt &LHS, const APInt &RHS)
	Unsigned division function for APInt.
APInt	srem (const APInt &LHS, const APInt &RHS)
	Function for signed remainder operation.
APInt	urem (const APInt &LHS, const APInt &RHS)
	Function for unsigned remainder operation.
APInt	mul (const APInt &LHS, const APInt &RHS)
	Function for multiplication operation.
APInt	add (const APInt &LHS, const APInt &RHS)
	Function for addition operation.
APInt	sub (const APInt &LHS, const APInt &RHS)
	Function for subtraction operation.
APInt	And (const APInt &LHS, const APInt &RHS)
	Bitwise AND function for APInt.
APInt	Or (const APInt &LHS, const APInt &RHS)
	Bitwise OR function for APInt.
APInt	Xor (const APInt &LHS, const APInt &RHS)
	Bitwise XOR function for APInt.
APInt	Not (const APInt &APIVal)
	Bitwise complement function.

---

Function Documentation

APInt llvm::APIntOps::add	(	const APInt &	LHS,
		const APInt &	RHS
	)		[inline]

Function for addition operation.

Performs addition on APInt values.

Definition at line 1813 of file APInt.h.

APInt llvm::APIntOps::And	(	const APInt &	LHS,
		const APInt &	RHS
	)		[inline]

Bitwise AND function for APInt.

Performs bitwise AND operation on APInt LHS and APInt RHS.

Definition at line 1824 of file APInt.h.

Referenced by CanEvaluateSExtd(), CanEvaluateShifted(), CanEvaluateTruncated(), CanEvaluateZExtd(), CollectBSwapParts(), collectFailStats(), llvm::ComputeMaskedBits(), llvm::ComputeNumSignBits(), ComputeSpeculationCost(), llvm::ConstantFoldBinaryInstruction(), llvm::ConstantFoldCompareInstOperands(), ExtractConstantBytes(), FindLIVLoopCondition(), llvm::SelectionDAGBuilder::FindMergedConditions(), llvm::FoldBranchToCommonDest(), llvm::InstCombiner::FoldICmpShrCst(), FoldMaskAndShiftToExtract(), llvm::InstCombiner::FoldShiftByConstant(), GatherConstantCompares(), llvm::ConstantExpr::get(), llvm::ConstantExpr::getAnd(), llvm::ConstantExpr::getBinOpAbsorber(), llvm::ConstantExpr::getBinOpIdentity(), getBinOpPrecedence(), llvm::ExecutionEngine::getConstantValue(), GetDecodedBinaryOpcode(), GetEncodedBinaryOpcode(), llvm::objcarc::GetInstructionClass(), llvm::Instruction::getOpcodeName(), getReductionBinOp(), GetSelectFoldableConstant(), GetSelectFoldableOperands(), GetShiftedValue(), llvm::BinaryOperator::init(), llvm::TargetLoweringBase::InstructionOpcodeToISD(), llvm::Instruction::isAssociative(), llvm::Instruction::isCommutative(), llvm::Instruction::isIdempotent(), LeftDistributesOverRight(), nvptx::LowerConstant(), lowerConstant(), OptimizeAndOrXor(), llvm::FastISel::SelectOperator(), shouldSpeculateInstrs(), SimplifyAndInst(), SimplifyBinOp(), SimplifyBranchOnICmpChain(), llvm::SimplifyInstruction(), SimplifyOrInst(), llvm::TargetLowering::SimplifySetCC(), SimplifyXorInst(), SymbolicallyEvaluateBinop(), llvm::Interpreter::visitBinaryOperator(), llvm::InstCombiner::visitICmpInstWithInstAndIntCst(), llvm::InstCombiner::visitSelectInstWithICmp(), llvm::InstCombiner::visitXor(), and llvm::InstCombiner::visitZExt().

APInt llvm::APIntOps::ashr	(	const APInt &	LHS,
		unsigned	shiftAmt
	)		[inline]

Arithmetic right-shift function.

Arithmetic right-shift the APInt by shiftAmt.

Definition at line 1767 of file APInt.h.

References llvm::APInt::ashr().

Referenced by llvm::ScalarEvolution::getSignedRange().

APInt llvm::APIntOps::byteSwap

(

const APInt &

APIVal

)

[inline]

Returns a byte-swapped representation of the specified APInt Value.

Definition at line 1713 of file APInt.h.

References llvm::APInt::byteSwap().

APInt llvm::APIntOps::GreatestCommonDivisor	(	const APInt &	Val1,
		const APInt &	Val2
	)

Compute GCD of two APInt values.

This function returns the greatest common divisor of the two APInt values using Euclid's algorithm.

Returns:

the greatest common divisor of Val1 and Val2

Definition at line 804 of file APInt.cpp.

References llvm::ARM_PROC::A, T, and urem().

bool llvm::APIntOps::isIntN	(	unsigned	N,
		const APInt &	APIVal
	)		[inline]

Check if the specified APInt has a N-bits unsigned integer value.

Definition at line 1692 of file APInt.h.

References llvm::APInt::isIntN().

bool llvm::APIntOps::isMask	(	unsigned	numBits,
		const APInt &	APIVal
	)		[inline]

Returns:

true if the argument APInt value is a sequence of ones starting at the least significant bit with the remainder zero.

Definition at line 1701 of file APInt.h.

References llvm::APInt::getBitWidth(), and llvm::APInt::getLowBitsSet().

Referenced by isShiftedMask().

bool llvm::APIntOps::isShiftedMask	(	unsigned	numBits,
		const APInt &	APIVal
	)		[inline]

Return true if the argument APInt value contains a sequence of ones with the remainder zero.

Definition at line 1708 of file APInt.h.

References isMask().

Referenced by isRunOfOnes().

bool llvm::APIntOps::isSignedIntN	(	unsigned	N,
		const APInt &	APIVal
	)		[inline]

Check if the specified APInt has a N-bits signed integer value.

Definition at line 1695 of file APInt.h.

References llvm::APInt::isSignedIntN().

unsigned llvm::APIntOps::logBase2

(

const APInt &

APIVal

)

[inline]

Returns the floor log base 2 of the specified APInt value.

Definition at line 1716 of file APInt.h.

References llvm::APInt::logBase2().

APInt llvm::APIntOps::lshr	(	const APInt &	LHS,
		unsigned	shiftAmt
	)		[inline]

Logical right-shift function.

Logical right-shift the APInt by shiftAmt.

Definition at line 1774 of file APInt.h.

References llvm::APInt::lshr().

Referenced by llvm::ComputeMaskedBits(), and llvm::ScalarEvolution::getUnsignedRange().

APInt llvm::APIntOps::mul	(	const APInt &	LHS,
		const APInt &	RHS
	)		[inline]

Function for multiplication operation.

Performs multiplication on APInt values.

Definition at line 1808 of file APInt.h.

APInt llvm::APIntOps::Not

(

const APInt &

APIVal

)

[inline]

Bitwise complement function.

Performs a bitwise complement operation on APInt.

Definition at line 1839 of file APInt.h.

Referenced by llvm::InstCombiner::visitICmpInst(), and llvm::InstCombiner::visitOr().

APInt llvm::APIntOps::Or	(	const APInt &	LHS,
		const APInt &	RHS
	)		[inline]

Bitwise OR function for APInt.

Performs bitwise OR operation on APInt LHS and APInt RHS.

Definition at line 1829 of file APInt.h.

Referenced by llvm::X86TargetLowering::BuildFILD(), CanEvaluateSExtd(), CanEvaluateShifted(), CanEvaluateTruncated(), CanEvaluateZExtd(), CollectBSwapParts(), collectFailStats(), CollectInsertionElements(), llvm::ComputeMaskedBits(), llvm::ComputeNumSignBits(), ComputeSpeculationCost(), llvm::ConstantFoldBinaryInstruction(), llvm::ConstantFoldCompareInstOperands(), ExtractConstantBytes(), FindLIVLoopCondition(), llvm::SelectionDAGBuilder::FindMergedConditions(), llvm::FoldBranchToCommonDest(), llvm::InstCombiner::FoldShiftByConstant(), GatherConstantCompares(), llvm::ConstantExpr::get(), llvm::ConstantExpr::getBinOpAbsorber(), llvm::ConstantExpr::getBinOpIdentity(), getBinOpPrecedence(), llvm::ExecutionEngine::getConstantValue(), GetDecodedBinaryOpcode(), GetEncodedBinaryOpcode(), llvm::objcarc::GetInstructionClass(), GetLinearExpression(), llvm::Instruction::getOpcodeName(), llvm::ConstantExpr::getOr(), getReductionBinOp(), GetSelectFoldableConstant(), GetSelectFoldableOperands(), GetShiftedValue(), llvm::BinaryOperator::init(), llvm::TargetLoweringBase::InstructionOpcodeToISD(), llvm::Instruction::isAssociative(), llvm::Instruction::isCommutative(), llvm::Instruction::isIdempotent(), LeftDistributesOverRight(), nvptx::LowerConstant(), lowerConstant(), lowerFCOPYSIGN64(), OptimizeAndOrXor(), llvm::X86TargetLowering::ReplaceNodeResults(), llvm::FastISel::SelectOperator(), shouldSpeculateInstrs(), SimplifyAndInst(), SimplifyBinOp(), SimplifyBranchOnICmpChain(), llvm::SimplifyInstruction(), SimplifyOrInst(), llvm::InstCombiner::visitAnd(), llvm::Interpreter::visitBinaryOperator(), llvm::InstCombiner::visitICmpInstWithInstAndIntCst(), llvm::InstCombiner::visitOr(), llvm::InstCombiner::visitXor(), and llvm::InstCombiner::visitZExt().

double llvm::APIntOps::RoundAPIntToDouble

(

const APInt &

APIVal

)

[inline]

Converts the given APInt to a double value.

Treats the APInt as an unsigned value for conversion purposes.

Definition at line 1729 of file APInt.h.

References llvm::APInt::roundToDouble().

Referenced by RoundAPIntToFloat().

float llvm::APIntOps::RoundAPIntToFloat

(

const APInt &

APIVal

)

[inline]

Converts the given APInt to a float vlalue.

Definition at line 1741 of file APInt.h.

References RoundAPIntToDouble().

APInt llvm::APIntOps::RoundDoubleToAPInt	(	double	Double,
		unsigned	width
	)

Converts the given double value into a APInt.

This function convert a double value to an APInt value.

Definition at line 815 of file APInt.cpp.

References llvm::LibFunc::exp, I, llvm::APInt::shl(), and T.

Referenced by llvm::ExecutionEngine::getConstantValue(), and RoundFloatToAPInt().

APInt llvm::APIntOps::RoundFloatToAPInt	(	float	Float,
		unsigned	width
	)		[inline]

Converts a float value into a APInt.

Converts a float value into an APInt value.

Definition at line 1760 of file APInt.h.

References RoundDoubleToAPInt().

Referenced by llvm::ExecutionEngine::getConstantValue().

double llvm::APIntOps::RoundSignedAPIntToDouble

(

const APInt &

APIVal

)

[inline]

Converts the given APInt to a double value.

Treats the APInt as a signed value for conversion purposes.

Definition at line 1736 of file APInt.h.

References llvm::APInt::signedRoundToDouble().

float llvm::APIntOps::RoundSignedAPIntToFloat

(

const APInt &

APIVal

)

[inline]

Converts the given APInt to a float value.

Treast the APInt as a signed value for conversion purposes.

Definition at line 1748 of file APInt.h.

References llvm::APInt::signedRoundToDouble().

APInt llvm::APIntOps::sdiv	(	const APInt &	LHS,
		const APInt &	RHS
	)		[inline]

Signed division function for APInt.

Signed divide APInt LHS by APInt RHS.

Definition at line 1788 of file APInt.h.

References llvm::APInt::sdiv().

Referenced by SolveQuadraticEquation(), and llvm::Interpreter::visitBinaryOperator().

APInt llvm::APIntOps::shl	(	const APInt &	LHS,
		unsigned	shiftAmt
	)		[inline]

Left-shift function.

Left-shift the APInt by shiftAmt.

Definition at line 1781 of file APInt.h.

References llvm::APInt::shl().

Referenced by llvm::APInt::getLoBits(), llvm::ScalarEvolution::getSignedRange(), llvm::ScalarEvolution::getUnsignedRange(), and insertInteger().

APInt llvm::APIntOps::smax	(	const APInt &	A,
		const APInt &	B
	)		[inline]

Determine the larger of two APInts considered to be signed.

Definition at line 1683 of file APInt.h.

References llvm::APInt::sgt().

Referenced by llvm::ScalarEvolution::getSignedRange(), and llvm::ScalarEvolution::getSMaxExpr().

APInt llvm::APIntOps::smin	(	const APInt &	A,
		const APInt &	B
	)		[inline]

Determine the smaller of two APInts considered to be signed.

Definition at line 1680 of file APInt.h.

References llvm::APInt::slt().

Referenced by llvm::ScalarEvolution::getSignedRange().

APInt llvm::APIntOps::srem	(	const APInt &	LHS,
		const APInt &	RHS
	)		[inline]

Function for signed remainder operation.

Signed remainder operation on APInt.

Definition at line 1798 of file APInt.h.

References llvm::APInt::srem().

Referenced by llvm::Interpreter::visitBinaryOperator().

APInt llvm::APIntOps::sub	(	const APInt &	LHS,
		const APInt &	RHS
	)		[inline]

Function for subtraction operation.

Performs subtraction on APInt values.

Definition at line 1818 of file APInt.h.

APInt llvm::APIntOps::udiv	(	const APInt &	LHS,
		const APInt &	RHS
	)		[inline]

Unsigned division function for APInt.

Unsigned divide APInt LHS by APInt RHS.

Definition at line 1793 of file APInt.h.

References llvm::APInt::udiv().

Referenced by llvm::SCEVAddRecExpr::getNumIterationsInRange(), and llvm::Interpreter::visitBinaryOperator().

APInt llvm::APIntOps::umax	(	const APInt &	A,
		const APInt &	B
	)		[inline]

Determine the larger of two APInts considered to be unsigned.

Definition at line 1689 of file APInt.h.

References llvm::APInt::ugt().

Referenced by llvm::ScalarEvolution::getUMaxExpr(), and llvm::ScalarEvolution::getUnsignedRange().

APInt llvm::APIntOps::umin	(	const APInt &	A,
		const APInt &	B
	)		[inline]

Determine the smaller of two APInts considered to be signed.

Definition at line 1686 of file APInt.h.

References llvm::APInt::ult().

Referenced by llvm::ConstantRange::binaryAnd(), and llvm::ScalarEvolution::getUnsignedRange().

APInt llvm::APIntOps::urem	(	const APInt &	LHS,
		const APInt &	RHS
	)		[inline]

Function for unsigned remainder operation.

Unsigned remainder operation on APInt.

Definition at line 1803 of file APInt.h.

References llvm::APInt::urem().

Referenced by GreatestCommonDivisor(), SolveLinEquationWithOverflow(), and llvm::Interpreter::visitBinaryOperator().

APInt llvm::APIntOps::Xor	(	const APInt &	LHS,
		const APInt &	RHS
	)		[inline]

Bitwise XOR function for APInt.

Performs bitwise XOR operation on APInt.

Definition at line 1834 of file APInt.h.

Referenced by CanEvaluateSExtd(), CanEvaluateShifted(), CanEvaluateTruncated(), CanEvaluateZExtd(), collectFailStats(), llvm::ComputeMaskedBits(), llvm::ComputeNumSignBits(), ComputeSpeculationCost(), llvm::ConstantFoldBinaryInstruction(), llvm::BinaryOperator::CreateNot(), llvm::InstCombiner::FoldOrOfICmps(), llvm::InstCombiner::FoldOrWithConstants(), llvm::InstCombiner::FoldShiftByConstant(), llvm::ConstantExpr::get(), llvm::ConstantExpr::getBinOpIdentity(), getBinOpPrecedence(), llvm::ExecutionEngine::getConstantValue(), GetDecodedBinaryOpcode(), GetEncodedBinaryOpcode(), llvm::objcarc::GetInstructionClass(), llvm::ConstantExpr::getNot(), llvm::Instruction::getOpcodeName(), getReductionBinOp(), GetSelectFoldableConstant(), GetSelectFoldableOperands(), GetShiftedValue(), llvm::ConstantExpr::getXor(), llvm::BinaryOperator::init(), llvm::TargetLoweringBase::InstructionOpcodeToISD(), llvm::Instruction::isAssociative(), llvm::Instruction::isCommutative(), llvm::Instruction::isNilpotent(), llvm::BinaryOperator::isNot(), LeftDistributesOverRight(), nvptx::LowerConstant(), lowerConstant(), llvm::PatternMatch::not_match< LHS_t >::match(), OptimizeAndOrXor(), llvm::FastISel::SelectOperator(), shouldSpeculateInstrs(), SimplifyAndInst(), SimplifyBinOp(), llvm::SimplifyInstruction(), SimplifyXorInst(), llvm::InstCombiner::visitAnd(), llvm::Interpreter::visitBinaryOperator(), llvm::InstCombiner::visitICmpInst(), llvm::InstCombiner::visitICmpInstWithInstAndIntCst(), llvm::InstCombiner::visitOr(), llvm::InstCombiner::visitXor(), and llvm::InstCombiner::visitZExt().