Conversion from types to the LLVM IR dialect. More...

#include "mlir/Conversion/LLVMCommon/TypeConverter.h"

Inheritance diagram for mlir::LLVMTypeConverter:

Public Member Functions
	LLVMTypeConverter (MLIRContext ctx, const DataLayoutAnalysis analysis=nullptr)
	Create an LLVMTypeConverter using the default LowerToLLVMOptions. More...

	LLVMTypeConverter (MLIRContext ctx, const LowerToLLVMOptions &options, const DataLayoutAnalysis analysis=nullptr)
	Create an LLVMTypeConverter using custom LowerToLLVMOptions. More...

Type	convertFunctionSignature (FunctionType funcTy, bool isVariadic, bool useBarePtrCallConv, SignatureConversion &result) const
	Convert a function type. More...

Type	convertFunctionSignature (FunctionOpInterface funcOp, bool isVariadic, bool useBarePtrCallConv, LLVMTypeConverter::SignatureConversion &result, SmallVectorImpl< std::optional< NamedAttribute >> &byValRefNonPtrAttrs) const
	Convert a function type. More...

Type	packFunctionResults (TypeRange types, bool useBarePointerCallConv=false) const
	Convert a non-empty list of types to be returned from a function into an LLVM-compatible type. More...

Type	packOperationResults (TypeRange types) const
	Convert a non-empty list of types of values produced by an operation into an LLVM-compatible type. More...

Type	convertCallingConventionType (Type type, bool useBarePointerCallConv=false) const
	Convert a type in the context of the default or bare pointer calling convention. More...

void	promoteBarePtrsToDescriptors (ConversionPatternRewriter &rewriter, Location loc, ArrayRef< Type > stdTypes, SmallVectorImpl< Value > &values) const
	Promote the bare pointers in 'values' that resulted from memrefs to descriptors. More...

MLIRContext &	getContext () const
	Returns the MLIR context. More...

LLVM::LLVMDialect *	getDialect () const
	Returns the LLVM dialect. More...

const LowerToLLVMOptions &	getOptions () const

SmallVector< Value, 4 >	promoteOperands (Location loc, ValueRange opOperands, ValueRange operands, OpBuilder &builder, bool useBarePtrCallConv=false) const
	Promote the LLVM representation of all operands including promoting MemRef descriptors to stack and use pointers to struct to avoid the complexity of the platform-specific C/C++ ABI lowering related to struct argument passing. More...

Value	promoteOneMemRefDescriptor (Location loc, Value operand, OpBuilder &builder) const
	Promote the LLVM struct representation of one MemRef descriptor to stack and use pointer to struct to avoid the complexity of the platform-specific C/C++ ABI lowering related to struct argument passing. More...

std::pair< LLVM::LLVMFunctionType, LLVM::LLVMStructType >	convertFunctionTypeCWrapper (FunctionType type) const
	Converts the function type to a C-compatible format, in particular using pointers to memref descriptors for arguments. More...

const llvm::DataLayout &	getDataLayout () const
	Returns the data layout to use during and after conversion. More...

const DataLayoutAnalysis *	getDataLayoutAnalysis () const
	Returns the data layout analysis to query during conversion. More...

Type	getIndexType () const
	Gets the LLVM representation of the index type. More...

unsigned	getIndexTypeBitwidth () const
	Gets the bitwidth of the index type when converted to LLVM. More...

unsigned	getPointerBitwidth (unsigned addressSpace=0) const
	Gets the pointer bitwidth. More...

unsigned	getMemRefDescriptorSize (MemRefType type, const DataLayout &layout) const
	Returns the size of the memref descriptor object in bytes. More...

unsigned	getUnrankedMemRefDescriptorSize (UnrankedMemRefType type, const DataLayout &layout) const
	Returns the size of the unranked memref descriptor object in bytes. More...

FailureOr< unsigned >	getMemRefAddressSpace (BaseMemRefType type) const
	Return the LLVM address space corresponding to the memory space of the memref type `type` or failure if the memory space cannot be converted to an integer. More...

SmallVector< Type, 5 >	getMemRefDescriptorFields (MemRefType type, bool unpackAggregates) const
	Convert a memref type into a list of LLVM IR types that will form the memref descriptor. More...

SmallVector< Type, 2 >	getUnrankedMemRefDescriptorFields () const
	Convert an unranked memref type into a list of non-aggregate LLVM IR types that will form the unranked memref descriptor. More...

LogicalResult	convertType (Type t, SmallVectorImpl< Type > &results) const
	Convert the given type. More...

Type	convertType (Type t) const
	This hook simplifies defining 1-1 type conversions. More...

template<typename TargetType >
TargetType	convertType (Type t) const
	Attempts a 1-1 type conversion, expecting the result type to be `TargetType`. More...

Public Member Functions inherited from mlir::TypeConverter
virtual	~TypeConverter ()=default

	TypeConverter ()=default

	TypeConverter (const TypeConverter &other)

TypeConverter &	operator= (const TypeConverter &other)

template<typename FnT , typename T = typename llvm::function_traits< std::decay_t<FnT>>::template arg_t<0>>
void	addConversion (FnT &&callback)
	Register a conversion function. More...

template<typename FnT , typename T = typename llvm::function_traits< std::decay_t<FnT>>::template arg_t<1>>
void	addSourceMaterialization (FnT &&callback)
	All of the following materializations require function objects that are convertible to the following form: `Value(OpBuilder &, T, ValueRange, Location)`, where `T` is any subclass of `Type`. More...

template<typename FnT , typename T = typename llvm::function_traits< std::decay_t<FnT>>::template arg_t<1>>
void	addTargetMaterialization (FnT &&callback)
	This method registers a materialization that will be called when converting a value to a target type according to a pattern's type converter. More...

template<typename FnT , typename T = typename llvm::function_traits<std::decay_t<FnT>>::template arg_t<0>, typename A = typename llvm::function_traits<std::decay_t<FnT>>::template arg_t<1>>
void	addTypeAttributeConversion (FnT &&callback)
	Register a conversion function for attributes within types. More...

LogicalResult	convertType (Type t, SmallVectorImpl< Type > &results) const
	Convert the given type. More...

Type	convertType (Type t) const
	This hook simplifies defining 1-1 type conversions. More...

template<typename TargetType >
TargetType	convertType (Type t) const
	Attempts a 1-1 type conversion, expecting the result type to be `TargetType`. More...

LogicalResult	convertTypes (TypeRange types, SmallVectorImpl< Type > &results) const
	Convert the given set of types, filling 'results' as necessary. More...

bool	isLegal (Type type) const
	Return true if the given type is legal for this type converter, i.e. More...

template<typename RangeT >
std::enable_if_t<!std::is_convertible< RangeT, Type >::value &&!std::is_convertible< RangeT, Operation * >::value, bool >	isLegal (RangeT &&range) const
	Return true if all of the given types are legal for this type converter. More...

bool	isLegal (Operation *op) const
	Return true if the given operation has legal operand and result types. More...

bool	isLegal (Region *region) const
	Return true if the types of block arguments within the region are legal. More...

bool	isSignatureLegal (FunctionType ty) const
	Return true if the inputs and outputs of the given function type are legal. More...

LogicalResult	convertSignatureArg (unsigned inputNo, Type type, SignatureConversion &result) const
	This method allows for converting a specific argument of a signature. More...

LogicalResult	convertSignatureArgs (TypeRange types, SignatureConversion &result, unsigned origInputOffset=0) const

std::optional< SignatureConversion >	convertBlockSignature (Block *block) const
	This function converts the type signature of the given block, by invoking 'convertSignatureArg' for each argument. More...

Value	materializeSourceConversion (OpBuilder &builder, Location loc, Type resultType, ValueRange inputs) const
	Materialize a conversion from a set of types into one result type by generating a cast sequence of some kind. More...

Value	materializeTargetConversion (OpBuilder &builder, Location loc, Type resultType, ValueRange inputs, Type originalType={}) const

SmallVector< Value >	materializeTargetConversion (OpBuilder &builder, Location loc, TypeRange resultType, ValueRange inputs, Type originalType={}) const

std::optional< Attribute >	convertTypeAttribute (Type type, Attribute attr) const
	Convert an attribute present `attr` from within the type `type` using the registered conversion functions. More...

Static Public Member Functions
static bool	canConvertToBarePtr (BaseMemRefType type)
	Check if a memref type can be converted to a bare pointer. More...

Protected Member Functions
SmallVector< Type > &	getCurrentThreadRecursiveStack ()

Protected Attributes
LLVM::LLVMDialect *	llvmDialect
	Pointer to the LLVM dialect. More...

DenseMap< uint64_t, std::unique_ptr< SmallVector< Type > > >	conversionCallStack

llvm::sys::SmartRWMutex< true >	callStackMutex

Friends
LogicalResult	structFuncArgTypeConverter (const LLVMTypeConverter &converter, Type type, SmallVectorImpl< Type > &result)
	Give structFuncArgTypeConverter access to memref-specific functions. More...

Detailed Description

Conversion from types to the LLVM IR dialect.

Definition at line 35 of file TypeConverter.h.

Constructor & Destructor Documentation

◆ LLVMTypeConverter() [1/2]

LLVMTypeConverter::LLVMTypeConverter	(	MLIRContext *	ctx,
		const DataLayoutAnalysis *	analysis = `nullptr`
	)

Create an LLVMTypeConverter using the default LowerToLLVMOptions.

Create an LLVMTypeConverter using default LowerToLLVMOptions.

Optionally takes a data layout analysis to use in conversions.

Definition at line 43 of file TypeConverter.cpp.

◆ LLVMTypeConverter() [2/2]

LLVMTypeConverter::LLVMTypeConverter	(	MLIRContext *	ctx,
		const LowerToLLVMOptions &	options,
		const DataLayoutAnalysis *	analysis = `nullptr`
	)

Create an LLVMTypeConverter using custom LowerToLLVMOptions.

Optionally takes a data layout analysis to use in conversions.

Definition at line 116 of file TypeConverter.cpp.

References mlir::TypeConverter::addConversion(), mlir::TypeConverter::addSourceMaterialization(), mlir::TypeConverter::addTargetMaterialization(), mlir::TypeConverter::addTypeAttributeConversion(), convertType(), mlir::TypeConverter::convertTypes(), mlir::OpBuilder::create(), mlir::get(), getCurrentThreadRecursiveStack(), mlir::LLVM::isCompatibleType(), llvmDialect, packRankedMemRefDesc(), packUnrankedMemRefDesc(), rankedMemRefMaterialization(), and unrankedMemRefMaterialization().

Member Function Documentation

◆ canConvertToBarePtr()

bool LLVMTypeConverter::canConvertToBarePtr ( BaseMemRefType type )

static

Check if a memref type can be converted to a bare pointer.

Definition at line 593 of file TypeConverter.cpp.

Referenced by canBeCalledWithBarePointers().

◆ convertCallingConventionType()

Type LLVMTypeConverter::convertCallingConventionType	(	Type	type,
		bool	useBarePtrCallConv = `false`
	)		const

Convert a type in the context of the default or bare pointer calling convention.

Calling convention sensitive types, such as MemRefType and UnrankedMemRefType, are converted following the specific rules for the calling convention. Calling convention independent types are converted following the default LLVM type conversions.

Definition at line 662 of file TypeConverter.cpp.

References convertType().

Referenced by mlir::barePtrFuncArgTypeConverter(), and packFunctionResults().

◆ convertFunctionSignature() [1/2]

Type LLVMTypeConverter::convertFunctionSignature	(	FunctionOpInterface	funcOp,
		bool	isVariadic,
		bool	useBarePtrCallConv,
		LLVMTypeConverter::SignatureConversion &	result,
		SmallVectorImpl< std::optional< NamedAttribute >> &	byValRefNonPtrAttrs
	)		const

Convert a function type.

The arguments and results are converted one by one and results are packed into a wrapped LLVM IR structure type. result is populated with argument mapping. Converted types of llvm.byval and llvm.byref function arguments which are not LLVM pointers are overridden with LLVM pointers. Overridden arguments are returned in byValRefNonPtrAttrs.

Definition at line 411 of file TypeConverter.cpp.

References filterByValRefArgAttrs().

◆ convertFunctionSignature() [2/2]

Type LLVMTypeConverter::convertFunctionSignature	(	FunctionType	funcTy,
		bool	isVariadic,
		bool	useBarePtrCallConv,
		LLVMTypeConverter::SignatureConversion &	result
	)		const

Convert a function type.

The arguments and results are converted one by one and results are packed into a wrapped LLVM IR structure type. result is populated with argument mapping.

Definition at line 403 of file TypeConverter.cpp.

Referenced by mlir::convertFuncOpToLLVMFuncOp(), and mlir::GPUFuncOpLowering::matchAndRewrite().

◆ convertFunctionTypeCWrapper()

std::pair< LLVM::LLVMFunctionType, LLVM::LLVMStructType > LLVMTypeConverter::convertFunctionTypeCWrapper ( FunctionType type ) const

Converts the function type to a C-compatible format, in particular using pointers to memref descriptors for arguments.

Also converts the return type to a pointer argument if it is a struct. Returns true if this was the case.

Definition at line 427 of file TypeConverter.cpp.

References convertType(), mlir::get(), getContext(), mlir::LLVM::isCompatibleType(), and packFunctionResults().

Referenced by wrapExternalFunction(), and wrapForExternalCallers().

◆ convertType() [1/3]

Type TypeConverter::convertType

This hook simplifies defining 1-1 type conversions.

This function returns the type to convert to on success, and a null type on failure.

Definition at line 252 of file DialectConversion.cpp.

◆ convertType() [2/3]

template<typename TargetType >

TargetType mlir::TypeConverter::convertType ( typename TargetType )

inline

Attempts a 1-1 type conversion, expecting the result type to be TargetType.

Returns the converted type cast to TargetType on success, and a null type on conversion or cast failure.

Definition at line 258 of file DialectConversion.h.

◆ convertType() [3/3]

LogicalResult TypeConverter::convertType

Convert the given type.

This function should return failure if no valid conversion exists, success otherwise. If the new set of types is empty, the type is removed and any usages of the existing value are expected to be removed during conversion.

Definition at line 248 of file DialectConversion.cpp.

Referenced by mlir::MemRefDescriptor::bufferPtr(), convertCallingConventionType(), mlir::convertFuncOpToLLVMFuncOp(), convertFunctionTypeCWrapper(), mlir::ConvertToLLVMPattern::copyUnrankedDescriptors(), mlir::LLVM::detail::extractNDVectorTypeInfo(), extractOne(), mlir::MemRefDescriptor::fromStaticShape(), getDynamicSharedMemorySymbol(), getIndexedPtrs(), getMemRefAlignment(), getMemRefDescriptorFields(), mlir::ConvertToLLVMPattern::getStridedElementPtr(), getVectorAlignment(), insertOne(), LLVMTypeConverter(), mlir::GPUFuncOpLowering::matchAndRewrite(), mlir::MemRefDescriptor::pack(), mlir::UnrankedMemRefDescriptor::pack(), packOperationResults(), restoreByValRefArgumentType(), mlir::impl::scalarizeVectorOp(), scalarizeVectorOpHelper(), mlir::structFuncArgTypeConverter(), wrapExternalFunction(), and wrapForExternalCallers().

◆ getContext()

MLIRContext & LLVMTypeConverter::getContext ( ) const

Returns the MLIR context.

Definition at line 276 of file TypeConverter.cpp.

References getDialect().

Referenced by addOpaquePointerConversion(), convertFunctionTypeCWrapper(), getCurrentThreadRecursiveStack(), getIndexType(), getUnrankedMemRefDescriptorFields(), packFunctionResults(), packOperationResults(), mlir::populateAMXLegalizeForLLVMExportPatterns(), mlir::populateGpuToLLVMSPVConversionPatterns(), and mlir::populateGpuToNVVMConversionPatterns().

◆ getCurrentThreadRecursiveStack()

SmallVector< Type > & LLVMTypeConverter::getCurrentThreadRecursiveStack ( )

protected

Definition at line 22 of file TypeConverter.cpp.

References callStackMutex, conversionCallStack, and getContext().

Referenced by LLVMTypeConverter().

◆ getDataLayout()

const llvm::DataLayout& mlir::LLVMTypeConverter::getDataLayout ( ) const

inline

Returns the data layout to use during and after conversion.

Definition at line 131 of file TypeConverter.h.

References mlir::LowerToLLVMOptions::dataLayout.

Referenced by getMemRefAlignment(), and getVectorAlignment().

◆ getDataLayoutAnalysis()

const DataLayoutAnalysis* mlir::LLVMTypeConverter::getDataLayoutAnalysis ( ) const

inline

Returns the data layout analysis to query during conversion.

Definition at line 134 of file TypeConverter.h.

◆ getDialect()

LLVM::LLVMDialect* mlir::LLVMTypeConverter::getDialect ( ) const

inline

Returns the LLVM dialect.

Definition at line 105 of file TypeConverter.h.

References llvmDialect.

Referenced by getContext(), mlir::ConvertToLLVMPattern::getDialect(), and mlir::populateVectorToLLVMConversionPatterns().

◆ getIndexType()

Type LLVMTypeConverter::getIndexType ( ) const

Gets the LLVM representation of the index type.

The returned type is an integer type with the size configured for this type converter.

Definition at line 280 of file TypeConverter.cpp.

References mlir::get(), getContext(), and getIndexTypeBitwidth().

◆ getIndexTypeBitwidth()

unsigned mlir::LLVMTypeConverter::getIndexTypeBitwidth ( ) const

inline

Gets the bitwidth of the index type when converted to LLVM.

Definition at line 143 of file TypeConverter.h.

References mlir::LowerToLLVMOptions::getIndexBitwidth().

Referenced by mlir::UnrankedMemRefDescriptor::computeSizes(), getIndexType(), and truncOrExtToLLVMType().

◆ getMemRefAddressSpace()

FailureOr< unsigned > LLVMTypeConverter::getMemRefAddressSpace ( BaseMemRefType type ) const

Return the LLVM address space corresponding to the memory space of the memref type type or failure if the memory space cannot be converted to an integer.

Definition at line 575 of file TypeConverter.cpp.

References mlir::TypeConverter::convertTypeAttribute(), and mlir::BaseMemRefType::getMemorySpace().

Referenced by mlir::ConvertToLLVMPattern::copyUnrankedDescriptors(), getDynamicSharedMemorySymbol(), mlir::ConvertToLLVMPattern::getElementPtrType(), getMemRefDescriptorFields(), getMemRefDescriptorSize(), getUnrankedMemRefDescriptorSize(), and isMemRefTypeSupported().

◆ getMemRefDescriptorFields()

SmallVector< Type, 5 > LLVMTypeConverter::getMemRefDescriptorFields	(	MemRefType	type,
		bool	unpackAggregates
	)		const

Convert a memref type into a list of LLVM IR types that will form the memref descriptor.

If unpackAggregates is true the sizes and strides arrays in the descriptors are unpacked to individual index-typed elements, else they are kept as rank-sized arrays of index type. In particular, the list will contain:

two pointers to the memref element type, followed by
an index-typed offset, followed by
(if unpackAggregates = true)
- one index-typed size per dimension of the memref, followed by
- one index-typed stride per dimension of the memref.
(if unpackArrregates = false)
- one rank-sized array of index-type for the size of each dimension
- one rank-sized array of index-type for the stride of each dimension

For example, memref<?x?xf32> is converted to the following list:

!llvm<"float*"> (allocated pointer),
!llvm<"float*"> (aligned pointer),
i64 (offset),
i64, i64 (sizes),
i64, i64 (strides). These types can be recomposed to a memref descriptor struct.

The result contains the following types:
1. The pointer to the allocated data buffer, followed by
2. The pointer to the aligned data buffer, followed by
3. A lowered index-type integer containing the distance between the beginning of the buffer and the first element to be accessed through the view, followed by
4. An array containing as many index-type integers as the rank of the MemRef: the array represents the size, in number of elements, of the memref along the given dimension. For constant MemRef dimensions, the corresponding size entry is a constant whose runtime value must match the static value, followed by
5. A second array containing as many index-type integers as the rank of the MemRef: the second array represents the "stride" (in tensor abstraction sense), i.e. the number of consecutive elements of the underlying buffer. TODO: add assertions for the static cases.
If unpackAggregates is set to true, the arrays described in (4) and (5) are expanded into individual index-type elements.

template <typename Elem, typename Index, size_t Rank> struct { Elem *allocatedPtr; Elem *alignedPtr; Index offset; Index sizes[Rank]; // omitted when rank == 0 Index strides[Rank]; // omitted when rank == 0 };

Definition at line 486 of file TypeConverter.cpp.

References convertType(), mlir::emitError(), mlir::get(), getIndexType(), and getMemRefAddressSpace().

Referenced by packRankedMemRefDesc(), and mlir::structFuncArgTypeConverter().

◆ getMemRefDescriptorSize()

unsigned LLVMTypeConverter::getMemRefDescriptorSize	(	MemRefType	type,
		const DataLayout &	layout
	)		const

Returns the size of the memref descriptor object in bytes.

Definition at line 526 of file TypeConverter.cpp.

References mlir::detail::divideCeil(), getIndexType(), getMemRefAddressSpace(), getPointerBitwidth(), and mlir::DataLayout::getTypeSize().

◆ getOptions()

const LowerToLLVMOptions& mlir::LLVMTypeConverter::getOptions ( ) const

inline

Definition at line 107 of file TypeConverter.h.

Referenced by mlir::GPUReturnOpLowering::matchAndRewrite(), mlir::populateFinalizeMemRefToLLVMConversionPatterns(), and shouldUseBarePtrCallConv().

◆ getPointerBitwidth()

unsigned LLVMTypeConverter::getPointerBitwidth ( unsigned addressSpace = 0 ) const

Gets the pointer bitwidth.

Definition at line 284 of file TypeConverter.cpp.

References mlir::LowerToLLVMOptions::dataLayout.

Referenced by mlir::UnrankedMemRefDescriptor::computeSizes(), getMemRefDescriptorSize(), and getUnrankedMemRefDescriptorSize().

◆ getUnrankedMemRefDescriptorFields()

SmallVector< Type, 2 > LLVMTypeConverter::getUnrankedMemRefDescriptorFields ( ) const

Convert an unranked memref type into a list of non-aggregate LLVM IR types that will form the unranked memref descriptor.

In particular, this list contains:

an integer rank, followed by
a pointer to the memref descriptor struct. For example, memref<xf32> is converted to the following list: i64 (rank) !llvm<"i8</em>"> (type-erased pointer). These types can be recomposed to a unranked memref descriptor struct.

In particular, the fields for an unranked memref descriptor are:

index-typed rank, the dynamic rank of this MemRef
void* ptr, pointer to the static ranked MemRef descriptor. This will be stack allocated (alloca) copy of a MemRef descriptor that got casted to be unranked.

Definition at line 554 of file TypeConverter.cpp.

References mlir::get(), getContext(), and getIndexType().

Referenced by packUnrankedMemRefDesc(), and mlir::structFuncArgTypeConverter().

◆ getUnrankedMemRefDescriptorSize()

unsigned LLVMTypeConverter::getUnrankedMemRefDescriptorSize	(	UnrankedMemRefType	type,
		const DataLayout &	layout
	)		const

Returns the size of the unranked memref descriptor object in bytes.

Definition at line 558 of file TypeConverter.cpp.

References mlir::detail::divideCeil(), getIndexType(), getMemRefAddressSpace(), getPointerBitwidth(), and mlir::DataLayout::getTypeSize().

◆ packFunctionResults()

Type LLVMTypeConverter::packFunctionResults	(	TypeRange	types,
		bool	useBarePtrCallConv = `false`
	)		const

Convert a non-empty list of types to be returned from a function into an LLVM-compatible type.

In particular, if more than one value is returned, create an LLVM dialect structure type with elements that correspond to each of the types converted with convertCallingConventionType.

Definition at line 710 of file TypeConverter.cpp.

References convertCallingConventionType(), getContext(), mlir::LLVM::isCompatibleType(), and mlir::LowerToLLVMOptions::useBarePtrCallConv.

Referenced by convertFunctionTypeCWrapper(), and mlir::GPUReturnOpLowering::matchAndRewrite().

◆ packOperationResults()

Type LLVMTypeConverter::packOperationResults ( TypeRange types ) const

Convert a non-empty list of types of values produced by an operation into an LLVM-compatible type.

In particular, if more than one value is produced, create a literal structure with elements that correspond to each of the LLVM-compatible types converted with convertType.

In particular, if more than one value is produced, create a literal structure with elements that correspond to each of the types converted with convertType.

Definition at line 689 of file TypeConverter.cpp.

References convertType(), getContext(), and mlir::LLVM::isCompatibleType().

Referenced by mlir::LLVM::detail::intrinsicRewrite(), and mlir::LLVM::detail::oneToOneRewrite().

◆ promoteBarePtrsToDescriptors()

void LLVMTypeConverter::promoteBarePtrsToDescriptors	(	ConversionPatternRewriter &	rewriter,
		Location	loc,
		ArrayRef< Type >	stdTypes,
		SmallVectorImpl< Value > &	values
	)		const

Promote the bare pointers in 'values' that resulted from memrefs to descriptors.

'stdTypes' holds the types of 'values' before the conversion to the LLVM-IR dialect (i.e., MemRefType, or any other builtin type).

'stdTypes' holds they types of 'values' before the conversion to the LLVM-IR dialect (i.e., MemRefType, or any other builtin type).

Definition at line 674 of file TypeConverter.cpp.

References mlir::MemRefDescriptor::fromStaticShape().

◆ promoteOneMemRefDescriptor()

Value LLVMTypeConverter::promoteOneMemRefDescriptor	(	Location	loc,
		Value	operand,
		OpBuilder &	builder
	)		const

Promote the LLVM struct representation of one MemRef descriptor to stack and use pointer to struct to avoid the complexity of the platform-specific C/C++ ABI lowering related to struct argument passing.

Definition at line 730 of file TypeConverter.cpp.

References mlir::OpBuilder::create(), mlir::get(), mlir::Builder::getContext(), mlir::Builder::getI64Type(), mlir::Builder::getIndexAttr(), and mlir::Value::getType().

◆ promoteOperands()

SmallVector< Value, 4 > LLVMTypeConverter::promoteOperands	(	Location	loc,
		ValueRange	opOperands,
		ValueRange	operands,
		OpBuilder &	builder,
		bool	useBarePtrCallConv = `false`
	)		const

Promote the LLVM representation of all operands including promoting MemRef descriptors to stack and use pointers to struct to avoid the complexity of the platform-specific C/C++ ABI lowering related to struct argument passing.

Definition at line 745 of file TypeConverter.cpp.

References mlir::MemRefDescriptor::alignedPtr(), mlir::MemRefDescriptor::unpack(), mlir::UnrankedMemRefDescriptor::unpack(), and mlir::LowerToLLVMOptions::useBarePtrCallConv.

Friends And Related Function Documentation

◆ structFuncArgTypeConverter

LogicalResult structFuncArgTypeConverter	(	const LLVMTypeConverter &	converter,
		Type	type,
		SmallVectorImpl< Type > &	result
	)

friend

Give structFuncArgTypeConverter access to memref-specific functions.

It converts a MemRef function argument to a list of non-aggregate types containing descriptor information, and an UnrankedmemRef function argument to a list containing the rank and a pointer to a descriptor struct.

Member Data Documentation

◆ callStackMutex

llvm::sys::SmartRWMutex<true> mlir::LLVMTypeConverter::callStackMutex

protected

Definition at line 206 of file TypeConverter.h.

Referenced by getCurrentThreadRecursiveStack().

◆ conversionCallStack

DenseMap<uint64_t, std::unique_ptr<SmallVector<Type> > > mlir::LLVMTypeConverter::conversionCallStack

protected

Definition at line 205 of file TypeConverter.h.

Referenced by getCurrentThreadRecursiveStack().

◆ llvmDialect

LLVM::LLVMDialect* mlir::LLVMTypeConverter::llvmDialect

protected

Pointer to the LLVM dialect.

Definition at line 201 of file TypeConverter.h.

Referenced by getDialect(), and LLVMTypeConverter().

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

include/mlir/Conversion/LLVMCommon/TypeConverter.h
lib/Conversion/LLVMCommon/TypeConverter.cpp

Public Member Functions

Static Public Member Functions

Protected Member Functions

Protected Attributes

Friends

Detailed Description

Constructor & Destructor Documentation

◆ LLVMTypeConverter() [1/2]

◆ LLVMTypeConverter() [2/2]

Member Function Documentation

◆ canConvertToBarePtr()

◆ convertCallingConventionType()

◆ convertFunctionSignature() [1/2]

◆ convertFunctionSignature() [2/2]

◆ convertFunctionTypeCWrapper()

◆ convertType() [1/3]

◆ convertType() [2/3]

◆ convertType() [3/3]

◆ getContext()

◆ getCurrentThreadRecursiveStack()

◆ getDataLayout()

◆ getDataLayoutAnalysis()

◆ getDialect()

◆ getIndexType()

◆ getIndexTypeBitwidth()

◆ getMemRefAddressSpace()

◆ getMemRefDescriptorFields()

◆ getMemRefDescriptorSize()

◆ getOptions()

◆ getPointerBitwidth()

◆ getUnrankedMemRefDescriptorFields()

◆ getUnrankedMemRefDescriptorSize()

◆ packFunctionResults()

◆ packOperationResults()

◆ promoteBarePtrsToDescriptors()

◆ promoteOneMemRefDescriptor()

◆ promoteOperands()

Friends And Related Function Documentation

◆ structFuncArgTypeConverter

Member Data Documentation

◆ callStackMutex

◆ conversionCallStack

◆ llvmDialect