mlir::affine::AffineValueMap Class Reference

An AffineValueMap is an affine map plus its ML value operands and results for analysis purposes. More...

#include "mlir/Dialect/Affine/IR/AffineValueMap.h"

Public Member Functions
	AffineValueMap ()=default
	AffineValueMap (AffineMap map, ValueRange operands, ValueRange results={})
	~AffineValueMap ()
void	reset (AffineMap map, ValueRange operands, ValueRange results={})
void	composeSimplifyAndCanonicalize ()
	Composes all incoming affine.apply ops and then simplifies and canonicalizes the map and operands. More...
bool	isMultipleOf (unsigned idx, int64_t factor) const
	Return true if the idx^th result can be proved to be a multiple of 'factor', false otherwise. More...
bool	isFunctionOf (unsigned idx, Value value) const
	Return true if the idx^th result depends on 'value', false otherwise. More...
bool	isConstant (unsigned idx) const
	Return true if the result at 'idx' is a constant, false otherwise. More...
bool	isIdentity () const
	Return true if this is an identity map. More...
void	setResult (unsigned i, AffineExpr e)
AffineExpr	getResult (unsigned i)
unsigned	getNumOperands () const
unsigned	getNumDims () const
unsigned	getNumSymbols () const
unsigned	getNumResults () const
Value	getOperand (unsigned i) const
ArrayRef< Value >	getOperands () const
AffineMap	getAffineMap () const
LogicalResult	canonicalize ()
	Attempts to canonicalize the map and operands. More...

Static Public Member Functions
static void	difference (const AffineValueMap &a, const AffineValueMap &b, AffineValueMap *res)
	Return the value map that is the difference of value maps 'a' and 'b', represented as an affine map and its operands. More...

Detailed Description

An AffineValueMap is an affine map plus its ML value operands and results for analysis purposes.

The structure is still a tree form that is same as that of an affine map or an AffineApplyOp. However, its operands, results, and its map can themselves change as a result of substitutions, simplifications, and other analysis.

Definition at line 35 of file AffineValueMap.h.

Constructor & Destructor Documentation

AffineValueMap() [1/2]

mlir::affine::AffineValueMap::AffineValueMap ( )

default

AffineValueMap() [2/2]

AffineValueMap::AffineValueMap	(	AffineMap	map,
		ValueRange	operands,
		ValueRange	results = {}
	)

Definition at line 15 of file AffineValueMap.cpp.

~AffineValueMap()

AffineValueMap::~AffineValueMap ( )

default

Member Function Documentation

canonicalize()

LogicalResult AffineValueMap::canonicalize

(

)

Attempts to canonicalize the map and operands.

Return success if the map and/or operands have been modified.

Definition at line 3956 of file AffineOps.cpp.

References composeAffineMapAndOperands().

Referenced by canonicalizeLoopBounds(), and mlir::affine::normalizeAffineFor().

composeSimplifyAndCanonicalize()

void AffineValueMap::composeSimplifyAndCanonicalize

(

)

Composes all incoming affine.apply ops and then simplifies and canonicalizes the map and operands.

This can change the number of operands, but the result count remains the same.

Definition at line 27 of file AffineValueMap.cpp.

References mlir::affine::canonicalizeMapAndOperands(), mlir::affine::fullyComposeAffineMapAndOperands(), getAffineMap(), and mlir::MutableAffineMap::reset().

Referenced by isAccessIndexInvariant(), and mlir::affine::isInvariantAccess().

difference()

void AffineValueMap::difference ( const AffineValueMap &  a, const AffineValueMap &  b, AffineValueMap *  res  )

static

Return the value map that is the difference of value maps 'a' and 'b', represented as an affine map and its operands.

The output map + operands are canonicalized and simplified.

Definition at line 36 of file AffineValueMap.cpp.

References mlir::affine::canonicalizeMapAndOperands(), mlir::affine::fullyComposeAffineMapAndOperands(), mlir::AffineMap::get(), getAffineMap(), getNumDims(), getNumOperands(), getNumResults(), getNumSymbols(), getOperands(), reset(), mlir::AffineMap::shiftDims(), mlir::AffineMap::shiftSymbols(), and mlir::simplifyAffineMap().

Referenced by mlir::affine::getTripCountMapAndOperands(), mlir::affine::normalizeAffineFor(), mlir::affine::normalizeAffineParallel(), and mlir::affine::MemRefAccess::operator==().

getAffineMap()

AffineMap AffineValueMap::getAffineMap

(

)

const

Definition at line 110 of file AffineValueMap.cpp.

References mlir::MutableAffineMap::getAffineMap().

Referenced by canonicalizeLoopBounds(), mlir::affine::FlatAffineValueConstraints::composeMap(), composeSimplifyAndCanonicalize(), mlir::affine::MemRefRegion::compute(), createFullTiles(), difference(), mlir::affine::getRelationFromMap(), mlir::affine::getTripCountMapAndOperands(), isFunctionOf(), mlir::affine::normalizeAffineFor(), and mlir::affine::MemRefAccess::operator==().

getNumDims()

unsigned mlir::affine::AffineValueMap::getNumDims ( ) const

inline

Definition at line 75 of file AffineValueMap.h.

References mlir::AffineMap::getNumDims().

Referenced by difference(), mlir::affine::MemRefAccess::getAccessRelation(), and mlir::affine::normalizeAffineParallel().

getNumOperands()

unsigned mlir::affine::AffineValueMap::getNumOperands ( ) const

inline

Definition at line 74 of file AffineValueMap.h.

Referenced by mlir::affine::MemRefRegion::compute(), and difference().

getNumResults()

unsigned mlir::affine::AffineValueMap::getNumResults ( ) const

inline

Definition at line 77 of file AffineValueMap.h.

References mlir::AffineMap::getNumResults().

Referenced by difference(), mlir::affine::MemRefAccess::getAccessRelation(), mlir::affine::getTripCountMapAndOperands(), and mlir::affine::normalizeAffineFor().

getNumSymbols()

unsigned mlir::affine::AffineValueMap::getNumSymbols ( ) const

inline

Definition at line 76 of file AffineValueMap.h.

References mlir::AffineMap::getNumSymbols().

Referenced by difference(), and mlir::affine::normalizeAffineParallel().

getOperand()

Value AffineValueMap::getOperand

(

unsigned

i

)

const

Definition at line 102 of file AffineValueMap.cpp.

Referenced by mlir::affine::MemRefRegion::compute(), and mlir::affine::getRelationFromMap().

getOperands()

ArrayRef< Value > AffineValueMap::getOperands

(

)

const

Definition at line 106 of file AffineValueMap.cpp.

Referenced by canonicalizeLoopBounds(), mlir::affine::FlatAffineValueConstraints::composeMap(), createFullTiles(), difference(), mlir::affine::getTripCountMapAndOperands(), mlir::affine::isInvariantAccess(), mlir::affine::normalizeAffineFor(), and mlir::affine::normalizeAffineParallel().

getResult()

AffineExpr mlir::affine::AffineValueMap::getResult ( unsigned  i )

inline

Definition at line 73 of file AffineValueMap.h.

References mlir::AffineMap::getResult().

Referenced by mlir::affine::getTripCountMapAndOperands(), and mlir::affine::normalizeAffineParallel().

isConstant()

bool mlir::affine::AffineValueMap::isConstant

(

unsigned

idx

)

const

Return true if the result at 'idx' is a constant, false otherwise.

isFunctionOf()

bool AffineValueMap::isFunctionOf	(	unsigned	idx,
		Value	value
	)		const

Return true if the idx^th result depends on 'value', false otherwise.

This method uses the invariant that operands are always positionally aligned with the AffineDimExpr in the underlying AffineMap.

Definition at line 91 of file AffineValueMap.cpp.

References findIndex(), getAffineMap(), mlir::AffineMap::getResult(), and mlir::AffineExpr::isFunctionOfDim().

Referenced by isAccessIndexInvariant().

isIdentity()

bool mlir::affine::AffineValueMap::isIdentity

(

)

const

Return true if this is an identity map.

isMultipleOf()

bool AffineValueMap::isMultipleOf ( unsigned  idx, int64_t  factor  ) const

inline

Return true if the idx^th result can be proved to be a multiple of 'factor', false otherwise.

Definition at line 85 of file AffineValueMap.cpp.

References mlir::MutableAffineMap::isMultipleOf().

reset()

void AffineValueMap::reset	(	AffineMap	map,
		ValueRange	operands,
		ValueRange	results = {}
	)

Definition at line 20 of file AffineValueMap.cpp.

Referenced by difference(), mlir::affine::MemRefAccess::getAccessMap(), and mlir::affine::FlatAffineValueConstraints::getIneqAsAffineValueMap().

setResult()

void mlir::affine::AffineValueMap::setResult ( unsigned  i, AffineExpr  e  )

inline

Definition at line 72 of file AffineValueMap.h.

Referenced by mlir::affine::getTripCountMapAndOperands().

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

• include/mlir/Dialect/Affine/IR/AffineValueMap.h
• lib/Dialect/Affine/IR/AffineOps.cpp
• lib/Dialect/Affine/IR/AffineValueMap.cpp