Base type for affine expression. More...

#include "mlir/IR/AffineExpr.h"

Inheritance diagram for mlir::AffineExpr:

Public Types
using	ImplType = detail::AffineExprStorage

Public Member Functions
constexpr	AffineExpr ()
	AffineExpr (const ImplType *expr)
bool	operator== (AffineExpr other) const
bool	operator!= (AffineExpr other) const
bool	operator== (int64_t v) const
bool	operator!= (int64_t v) const
	operator bool () const
bool	operator! () const
MLIRContext *	getContext () const
AffineExprKind	getKind () const
	Return the classification for this type.
void	print (raw_ostream &os) const
void	dump () const
bool	isSymbolicOrConstant () const
	Returns true if this expression is made out of only symbols and constants, i.e., it does not involve dimensional identifiers.
bool	isPureAffine () const
	Returns true if this is a pure affine expression, i.e., multiplication, floordiv, ceildiv, and mod is only allowed w.r.t constants.
int64_t	getLargestKnownDivisor () const
	Returns the greatest known integral divisor of this affine expression.
bool	isMultipleOf (int64_t factor) const
	Return true if the affine expression is a multiple of 'factor'.
bool	isFunctionOfDim (unsigned position) const
	Return true if the affine expression involves AffineDimExpr position.
bool	isFunctionOfSymbol (unsigned position) const
	Return true if the affine expression involves AffineSymbolExpr position.
template<typename FnT, typename RetT = detail::walkResultType<FnT>>
RetT	walk (FnT &&callback) const
	Walk all of the AffineExpr's in this expression in postorder.
AffineExpr	replaceDimsAndSymbols (ArrayRef< AffineExpr > dimReplacements, ArrayRef< AffineExpr > symReplacements) const
	This method substitutes any uses of dimensions and symbols (e.g.
AffineExpr	replaceDims (ArrayRef< AffineExpr > dimReplacements) const
	Dim-only version of replaceDimsAndSymbols.
AffineExpr	replaceSymbols (ArrayRef< AffineExpr > symReplacements) const
	Symbol-only version of replaceDimsAndSymbols.
AffineExpr	replace (AffineExpr expr, AffineExpr replacement) const
	Sparse replace method.
AffineExpr	replace (const DenseMap< AffineExpr, AffineExpr > &map) const
	Sparse replace method.
AffineExpr	shiftDims (unsigned numDims, unsigned shift, unsigned offset=0) const
	Replace dims[offset ... numDims) by dims[offset + shift ... shift + numDims).
AffineExpr	shiftSymbols (unsigned numSymbols, unsigned shift, unsigned offset=0) const
	Replace symbols[offset ... numSymbols) by symbols[offset + shift ... shift + numSymbols).
AffineExpr	operator+ (int64_t v) const
AffineExpr	operator+ (AffineExpr other) const
AffineExpr	operator- () const
AffineExpr	operator- (int64_t v) const
AffineExpr	operator- (AffineExpr other) const
AffineExpr	operator* (int64_t v) const
AffineExpr	operator* (AffineExpr other) const
AffineExpr	floorDiv (uint64_t v) const
AffineExpr	floorDiv (AffineExpr other) const
AffineExpr	ceilDiv (uint64_t v) const
AffineExpr	ceilDiv (AffineExpr other) const
AffineExpr	operator% (uint64_t v) const
AffineExpr	operator% (AffineExpr other) const
AffineExpr	compose (AffineMap map) const
	Compose with an AffineMap.
friend::llvm::hash_code	hash_value (AffineExpr arg)
const void *	getAsOpaquePointer () const
	Methods supporting C API.
ImplType *	getImpl () const

Static Public Member Functions
static AffineExpr	getFromOpaquePointer (const void *pointer)

Protected Attributes
ImplType *	expr {nullptr}

Detailed Description

Base type for affine expression.

AffineExpr's are immutable value types with intuitive operators to operate on chainable, lightweight compositions. An AffineExpr is an interface to the underlying storage type pointer.

Definition at line 68 of file AffineExpr.h.

Member Typedef Documentation

◆ ImplType

using mlir::AffineExpr::ImplType = detail::AffineExprStorage

Definition at line 70 of file AffineExpr.h.

Constructor & Destructor Documentation

◆ AffineExpr() [1/2]

mlir::AffineExpr::AffineExpr ( )

inlineconstexpr

◆ AffineExpr() [2/2]

mlir::AffineExpr::AffineExpr ( const ImplType * expr )

inline

Definition at line 73 of file AffineExpr.h.

References expr.

Member Function Documentation

◆ ceilDiv() [1/2]

AffineExpr AffineExpr::ceilDiv ( AffineExpr other ) const

Definition at line 1009 of file AffineExpr.cpp.

References AffineExpr(), mlir::CeilDiv, mlir::StorageUniquer::get(), mlir::MLIRContext::getAffineUniquer(), getContext(), and simplifyCeilDiv().

◆ ceilDiv() [2/2]

AffineExpr AffineExpr::ceilDiv ( uint64_t v ) const

Definition at line 1006 of file AffineExpr.cpp.

References AffineExpr(), ceilDiv(), mlir::getAffineConstantExpr(), and getContext().

Referenced by calculateTileOffsetsAndSizes(), ceilDiv(), mlir::linalg::computePaddedShape(), createInitialTensorsForTiling(), mlir::affine::getTripCountMapAndOperands(), getUserTileSizesAndNumThreads(), mlir::linalg::packMatmulGreedily(), and replaceAffineMinBoundingBoxExpression().

◆ compose()

AffineExpr AffineExpr::compose ( AffineMap map ) const

Compose with an AffineMap.

Returns the composition of this AffineExpr with map.

Prerequisites: this and map are composable, i.e. that the number of AffineDimExpr of this is smaller than the number of results of map. If a result of a map does not have a corresponding AffineDimExpr, that result simply does not appear in the produced AffineExpr.

Example: expr: d0 + d2 map: (d0, d1, d2)[s0, s1] -> (d0 + s1, d1 + s0, d0 + d1 + d2) returned expr: d0 * 2 + d1 + d2 + s1

Definition at line 1076 of file AffineExpr.cpp.

References AffineExpr(), mlir::AffineMap::getResults(), and replaceDimsAndSymbols().

Referenced by mlir::AffineMap::compose().

◆ dump()

void AffineExpr::dump ( ) const

Definition at line 4022 of file AsmPrinter.cpp.

References print().

◆ floorDiv() [1/2]

AffineExpr AffineExpr::floorDiv ( AffineExpr other ) const

Definition at line 962 of file AffineExpr.cpp.

References AffineExpr(), mlir::FloorDiv, mlir::StorageUniquer::get(), mlir::MLIRContext::getAffineUniquer(), getContext(), and simplifyFloorDiv().

◆ floorDiv() [2/2]

◆ getAsOpaquePointer()

const void * mlir::AffineExpr::getAsOpaquePointer ( ) const

inline

Methods supporting C API.

Definition at line 185 of file AffineExpr.h.

References expr.

◆ getContext()

MLIRContext * AffineExpr::getContext ( ) const

◆ getFromOpaquePointer()

AffineExpr mlir::AffineExpr::getFromOpaquePointer ( const void * pointer )

inlinestatic

Definition at line 188 of file AffineExpr.h.

References AffineExpr().

◆ getImpl()

ImplType * mlir::AffineExpr::getImpl ( ) const

inline

Definition at line 193 of file AffineExpr.h.

References expr.

Referenced by llvm::CastInfo< To, From, std::enable_if_t< std::is_same_v< mlir::AffineExpr, std::remove_const_t< From > >||std::is_base_of_v< mlir::AffineExpr, From > > >::doCast().

◆ getKind()

AffineExprKind AffineExpr::getKind ( ) const

Return the classification for this type.

Definition at line 33 of file AffineExpr.cpp.

References expr.

Referenced by checkOperandAffineExprRecursively(), findAffine(), findDepIdxSet(), mlir::sparse_tensor::LoopEmitter::genAffine(), genIndex(), mlir::sparse_tensor::genMapBuffers(), getLargestKnownDivisor(), getTileSizePos(), isFunctionOfDim(), isFunctionOfSymbol(), isInvariantAffine(), isMultipleOf(), llvm::CastInfo< To, From, std::enable_if_t< std::is_same_v< mlir::AffineExpr, std::remove_const_t< From > >||std::is_base_of_v< mlir::AffineExpr, From > > >::isPossible(), isPureAffine(), isSymbolicOrConstant(), mlir::AsmPrinter::Impl::printAffineExprInternal(), replace(), replaceDimsAndSymbols(), simplifyExprAndOperands(), mlir::AffineExprVisitorBase< SubClass, RetTy >::visit(), mlir::AffineExprVisitor< SubClass, RetTy >::walkPostOrder(), and mlir::AffineExprVisitor< SubClass, LogicalResult >::walkPostOrder().

◆ getLargestKnownDivisor()

int64_t AffineExpr::getLargestKnownDivisor ( ) const

Returns the greatest known integral divisor of this affine expression.

The result is always positive.

Definition at line 241 of file AffineExpr.cpp.

References mlir::Add, mlir::CeilDiv, mlir::Constant, mlir::DimId, mlir::FloorDiv, getKind(), getLargestKnownDivisor(), mlir::AffineBinaryOpExpr::getLHS(), mlir::AffineBinaryOpExpr::getRHS(), mlir::Mod, mlir::Mul, rhs, and mlir::SymbolId.

Referenced by getLargestKnownDivisor(), getLargestKnownDivisor(), and isMultipleOf().

◆ hash_value()

friend::llvm::hash_code mlir::AffineExpr::hash_value ( AffineExpr arg )

References AffineExpr().

◆ isFunctionOfDim()

bool AffineExpr::isFunctionOfDim ( unsigned position ) const

Return true if the affine expression involves AffineDimExpr position.

Definition at line 314 of file AffineExpr.cpp.

References mlir::DimId, expr, mlir::getAffineDimExpr(), getContext(), and getKind().

Referenced by getFirstResultIndexFunctionOf(), mlir::affine::AffineValueMap::isFunctionOf(), mlir::AffineMap::isFunctionOfDim(), and verifyInputMaps().

◆ isFunctionOfSymbol()

bool AffineExpr::isFunctionOfSymbol ( unsigned position ) const

Return true if the affine expression involves AffineSymbolExpr position.

Definition at line 325 of file AffineExpr.cpp.

References expr, mlir::getAffineSymbolExpr(), getContext(), getKind(), and mlir::SymbolId.

Referenced by mlir::AffineMap::isFunctionOfSymbol().

◆ isMultipleOf()

bool AffineExpr::isMultipleOf ( int64_t factor ) const

Return true if the affine expression is a multiple of 'factor'.

Definition at line 281 of file AffineExpr.cpp.

References mlir::Add, mlir::CeilDiv, mlir::Constant, mlir::DimId, mlir::FloorDiv, getKind(), getLargestKnownDivisor(), mlir::AffineBinaryOpExpr::getLHS(), mlir::AffineBinaryOpExpr::getRHS(), mlir::Mod, mlir::Mul, and mlir::SymbolId.

◆ isPureAffine()

bool AffineExpr::isPureAffine ( ) const

Returns true if this is a pure affine expression, i.e., multiplication, floordiv, ceildiv, and mod is only allowed w.r.t constants.

Definition at line 210 of file AffineExpr.cpp.

References mlir::Add, mlir::CeilDiv, mlir::Constant, mlir::DimId, mlir::FloorDiv, getKind(), mlir::Mod, mlir::Mul, and mlir::SymbolId.

Referenced by mlir::simplifyAffineExpr().

◆ isSymbolicOrConstant()

bool AffineExpr::isSymbolicOrConstant ( ) const

Returns true if this expression is made out of only symbols and constants, i.e., it does not involve dimensional identifiers.

Returns true if this expression is made out of only symbols and constants (no dimensional identifiers).

Definition at line 186 of file AffineExpr.cpp.

References mlir::Add, mlir::CeilDiv, mlir::Constant, mlir::DimId, expr, mlir::FloorDiv, getKind(), mlir::Mod, mlir::Mul, and mlir::SymbolId.

◆ operator bool()

mlir::AffineExpr::operator bool ( ) const

inlineexplicit

Definition at line 80 of file AffineExpr.h.

References expr.

◆ operator!()

bool mlir::AffineExpr::operator! ( ) const

inline

Definition at line 82 of file AffineExpr.h.

References expr.

◆ operator!=() [1/2]

bool mlir::AffineExpr::operator!= ( AffineExpr other ) const

inline

Definition at line 77 of file AffineExpr.h.

References AffineExpr().

◆ operator!=() [2/2]

bool mlir::AffineExpr::operator!= ( int64_t v ) const

inline

Definition at line 79 of file AffineExpr.h.

◆ operator%() [1/2]

AffineExpr AffineExpr::operator% ( AffineExpr other ) const

Definition at line 1067 of file AffineExpr.cpp.

References AffineExpr(), mlir::StorageUniquer::get(), mlir::MLIRContext::getAffineUniquer(), getContext(), mlir::Mod, and simplifyMod().

◆ operator%() [2/2]

AffineExpr AffineExpr::operator% ( uint64_t v ) const

Definition at line 1064 of file AffineExpr.cpp.

References AffineExpr(), mlir::getAffineConstantExpr(), and getContext().

◆ operator*() [1/2]

AffineExpr AffineExpr::operator* ( AffineExpr other ) const

Definition at line 891 of file AffineExpr.cpp.

References AffineExpr(), mlir::StorageUniquer::get(), mlir::MLIRContext::getAffineUniquer(), getContext(), lhs, mlir::Mul, rhs, and simplifyMul().

◆ operator*() [2/2]

AffineExpr AffineExpr::operator* ( int64_t v ) const

Definition at line 888 of file AffineExpr.cpp.

References AffineExpr(), mlir::getAffineConstantExpr(), and getContext().

◆ operator+() [1/2]

AffineExpr mlir::AffineExpr::operator+ ( AffineExpr other ) const

References AffineExpr().

◆ operator+() [2/2]

AffineExpr mlir::AffineExpr::operator+ ( int64_t v ) const

References AffineExpr().

◆ operator-() [1/3]

AffineExpr AffineExpr::operator- ( ) const

Definition at line 903 of file AffineExpr.cpp.

References AffineExpr(), mlir::getAffineConstantExpr(), and getContext().

◆ operator-() [2/3]

AffineExpr AffineExpr::operator- ( AffineExpr other ) const

Definition at line 909 of file AffineExpr.cpp.

References AffineExpr().

◆ operator-() [3/3]

AffineExpr AffineExpr::operator- ( int64_t v ) const

Definition at line 908 of file AffineExpr.cpp.

References AffineExpr().

◆ operator==() [1/2]

bool mlir::AffineExpr::operator== ( AffineExpr other ) const

inline

Definition at line 76 of file AffineExpr.h.

References AffineExpr(), and expr.

◆ operator==() [2/2]

bool mlir::AffineExpr::operator== ( int64_t v ) const

◆ print()

void AffineExpr::print ( raw_ostream & os ) const

Definition at line 4013 of file AsmPrinter.cpp.

References expr, getContext(), mlir::AsmState::getImpl(), and mlir::AsmPrinter::Impl::printAffineExpr().

Referenced by mlir::operator<<().

◆ replace() [1/2]

AffineExpr AffineExpr::replace	(	AffineExpr	expr,
		AffineExpr	replacement ) const

Sparse replace method.

Sparse replace method. Return the modified expression tree.

Replace expr by replacement and return the modified expression tree.

Definition at line 179 of file AffineExpr.cpp.

References AffineExpr(), expr, replace(), and replacement().

Referenced by replace(), and replaceAffineMinBoundingBoxExpression().

◆ replace() [2/2]

AffineExpr AffineExpr::replace ( const DenseMap< AffineExpr, AffineExpr > & map ) const

Sparse replace method.

Sparse replace method. Return the modified expression tree.

If *this appears in map replaces it by map[*this] and return the modified expression tree. Otherwise traverse *this and apply replace with map on its subexpressions.

Definition at line 155 of file AffineExpr.cpp.

References mlir::Add, mlir::CeilDiv, mlir::FloorDiv, mlir::getAffineBinaryOpExpr(), getKind(), lhs, mlir::Mod, mlir::Mul, and rhs.

◆ replaceDims()

AffineExpr AffineExpr::replaceDims ( ArrayRef< AffineExpr > dimReplacements ) const

Dim-only version of replaceDimsAndSymbols.

Definition at line 120 of file AffineExpr.cpp.

References AffineExpr(), and replaceDimsAndSymbols().

Referenced by projectCommonImpl().

◆ replaceDimsAndSymbols()

AffineExpr AffineExpr::replaceDimsAndSymbols	(	ArrayRef< AffineExpr >	dimReplacements,
		ArrayRef< AffineExpr >	symReplacements ) const

This method substitutes any uses of dimensions and symbols (e.g.

dim#0 with dimReplacements[0]) and returns the modified expression tree. This is a dense replacement method: a replacement must be specified for every single dim and symbol.

dim#0 with dimReplacements[0]) and returns the modified expression tree.

Definition at line 87 of file AffineExpr.cpp.

References mlir::Add, mlir::CeilDiv, mlir::Constant, mlir::DimId, mlir::FloorDiv, mlir::getAffineBinaryOpExpr(), getKind(), lhs, mlir::Mod, mlir::Mul, rhs, and mlir::SymbolId.

Referenced by compose(), mlir::ValueBoundsConstraintSet::insert(), replaceDims(), mlir::AffineMap::replaceDimsAndSymbols(), replaceSymbols(), shiftDims(), and shiftSymbols().

◆ replaceSymbols()

AffineExpr AffineExpr::replaceSymbols ( ArrayRef< AffineExpr > symReplacements ) const

Symbol-only version of replaceDimsAndSymbols.

Definition at line 125 of file AffineExpr.cpp.

References replaceDimsAndSymbols().

Referenced by projectCommonImpl().

◆ shiftDims()

AffineExpr AffineExpr::shiftDims	(	unsigned	numDims,
		unsigned	shift,
		unsigned	offset = 0 ) const

Replace dims[offset ... numDims) by dims[offset + shift ... shift + numDims).

Definition at line 131 of file AffineExpr.cpp.

References AffineExpr(), mlir::getAffineDimExpr(), getContext(), and replaceDimsAndSymbols().

Referenced by mlir::AffineMap::shiftDims().

◆ shiftSymbols()

AffineExpr AffineExpr::shiftSymbols	(	unsigned	numSymbols,
		unsigned	shift,
		unsigned	offset = 0 ) const

Replace symbols[offset ... numSymbols) by symbols[offset + shift ... shift + numSymbols).

Definition at line 143 of file AffineExpr.cpp.

References AffineExpr(), mlir::getAffineSymbolExpr(), getContext(), and replaceDimsAndSymbols().

Referenced by mlir::AffineMap::shiftSymbols().

◆ walk()

template<typename FnT, typename RetT = detail::walkResultType<FnT>>

RetT mlir::AffineExpr::walk ( FnT && callback ) const

inline

Walk all of the AffineExpr's in this expression in postorder.

This allows a lambda walk function that can either return void or a WalkResult. With a WalkResult, interrupting is supported.

Definition at line 117 of file AffineExpr.h.

References walk().

Referenced by getTileSizePos(), isNormalizedMemRefDynamicDim(), walk(), and mlir::AffineMap::walkExprs().

Member Data Documentation

◆ expr

ImplType* mlir::AffineExpr::expr {nullptr}

protected

Definition at line 196 of file AffineExpr.h.

Referenced by AffineExpr(), getAsOpaquePointer(), getContext(), getImpl(), getKind(), mlir::AffineBinaryOpExpr::getLHS(), mlir::AffineDimExpr::getPosition(), mlir::AffineBinaryOpExpr::getRHS(), mlir::hash_value(), isFunctionOfDim(), isFunctionOfSymbol(), isSymbolicOrConstant(), operator bool(), operator!(), operator==(), print(), and replace().

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

include/mlir/IR/AffineExpr.h
lib/IR/AffineExpr.cpp
lib/IR/AsmPrinter.cpp

Public Types

Public Member Functions

Static Public Member Functions

Protected Attributes

Detailed Description

Member Typedef Documentation

◆ ImplType

Constructor & Destructor Documentation

◆ AffineExpr() [1/2]

◆ AffineExpr() [2/2]

Member Function Documentation

◆ ceilDiv() [1/2]

◆ ceilDiv() [2/2]

◆ compose()

◆ dump()

◆ floorDiv() [1/2]

◆ floorDiv() [2/2]

◆ getAsOpaquePointer()

◆ getContext()

◆ getFromOpaquePointer()

◆ getImpl()

◆ getKind()

◆ getLargestKnownDivisor()

◆ hash_value()

◆ isFunctionOfDim()

◆ isFunctionOfSymbol()

◆ isMultipleOf()

◆ isPureAffine()

◆ isSymbolicOrConstant()

◆ operator bool()

◆ operator!()

◆ operator!=() [1/2]

◆ operator!=() [2/2]

◆ operator%() [1/2]

◆ operator%() [2/2]

◆ operator*() [1/2]

◆ operator*() [2/2]

◆ operator+() [1/2]

◆ operator+() [2/2]

◆ operator-() [1/3]

◆ operator-() [2/3]

◆ operator-() [3/3]

◆ operator==() [1/2]

◆ operator==() [2/2]

◆ print()

◆ replace() [1/2]

◆ replace() [2/2]

◆ replaceDims()

◆ replaceDimsAndSymbols()

◆ replaceSymbols()

◆ shiftDims()

◆ shiftSymbols()

◆ walk()

Member Data Documentation

◆ expr