Namespaces
	codegen_internal

Classes
struct	AliasTypeMap
	Alias mapping between two types, a frontend type T1 and a backend type T2. This class is the intended interface for binding objects which implement supported backend AX/IR types to this given backend type. More specifically, it's current and expected usage is limited to objects which hold a single member of a supported backend type and implements a StandardLayoutType as defined by the standard. Fundamentally, T1->T2 mapping should be supported by reinterpret_cast<> as defined by the type aliasing rules. More...

struct	ArgType
	Object to array conversion methods to allow functions to return vector types. These containers provided an interface for automatic conversion of C++ objects to LLVM types as array types. More...

struct	ArgumentIterator
	Templated argument iterator which implements various small functions per argument type, resolved at compile time. More...

struct	ArgumentIterator< SignatureT, 0 >

struct	CFunction
	Represents a concrete C function binding. More...

struct	CFunctionBase
	The base class for all C bindings. More...

struct	CFunctionSRet
	Represents a concrete C function binding with the first argument as its return type. More...

struct	ComputeKernel
	The function definition and signature which is built by the ComputeGenerator. More...

struct	ConstantFolder
	Constant folding support structure. More...

struct	ConstantFolder< SignatureT, 0 >

struct	Function
	The base/abstract representation of an AX function. Derived classes must implement the Function::types call to describe their signature. More...

struct	FunctionBuilder
	The FunctionBuilder class provides a builder pattern framework to allow easy and valid construction of AX functions. There are a number of complex tasks which may need to be performed during construction of C or IR function which are delegated to this builder, whilst ensuring that the constructed functions are guaranteed to be valid. More...

struct	FunctionGroup
	todo More...

class	FunctionRegistry
	The function registry which is used for function code generation. Each time a function is visited within the AST, its identifier is used as a key into this registry for the corresponding function retrieval and execution. Functions can be inserted into the registry using insert() with a given identifier and pointer. More...

struct	FunctionTraits
	Templated function traits which provides compile-time index access to the types of the function signature. More...

struct	FunctionTraits< R(&)(Args...)>

struct	FunctionTraits< R(*)(Args...)>

struct	FunctionTraits< ReturnT(Args...)>

struct	int_t

struct	int_t< 16 >

struct	int_t< 32 >

struct	int_t< 64 >

struct	int_t< 8 >

struct	IRFunction
	Represents a concrete IR function. More...

struct	IRFunctionBase
	The base/abstract definition for an IR function. More...

struct	IRFunctionSRet
	Represents a concrete IR function with the first argument as its return type. More...

struct	LLVMType
	LLVM type mapping from pod types. More...

struct	LLVMType< ArgType< T, S > >

struct	LLVMType< char >

struct	LLVMType< codegen::String >

struct	LLVMType< const T * >

struct	LLVMType< const T >

struct	LLVMType< math::Mat3< T > >

struct	LLVMType< math::Mat4< T > >

struct	LLVMType< math::Vec2< T > >
	Supported aliasing for VDB math types, allowing use in external function signatures. More...

struct	LLVMType< math::Vec3< T > >

struct	LLVMType< math::Vec4< T > >

struct	LLVMType< T * >

struct	LLVMType< T[S]>

struct	LLVMType< void * >

struct	LLVMType< void >

struct	PointKernel
	The function definition and signature which is built by the PointComputeGenerator. More...

struct	PointRangeKernel
	An additional function built by the PointComputeGenerator. Currently both compute and compute range functions have the same signature. More...

struct	SRetFunction
	Templated interface class for SRET functions. This struct provides the interface for functions that wish to return arrays (vectors or matrices) by internally remapping the first argument for the user. As far as LLVM and any bindings are concerned, the function signature remains unchanged - however the first argument becomes "invisible" to the user and is instead allocated by LLVM before the function is executed. Importantly, the argument has no impact on the user facing AX signature and doesn't affect declaration selection. More...

struct	String
	An extremely basic but native representation of a string class with SSO support. This exists to provide an interface between the AX C++ API and backend IR string logic. It is not designed to fulfill any other use and should very rarely be used directly. More...

struct	SymbolTable
	A symbol table which can be used to represent a single scoped set of a programs variables. This is simply an unordered map of strings to llvm::Values. More...

struct	SymbolTableBlocks
	A map of unique ids to symbol tables which can be used to represent local variables within a program. New scopes can be added and erased where necessary and iterated through using find(). Find assumes that tables are added through parented ascending ids. More...

struct	TypeToSymbol
	Type to symbol conversions - these characters are used to build each functions unique signature. They differ from standard AX or LLVM syntax to be as short as possible i.e. vec4d, [4 x double] = d4. More...

struct	TypeToSymbol< ArgType< T, S > >

struct	TypeToSymbol< char >

struct	TypeToSymbol< codegen::String >

struct	TypeToSymbol< const T * >

struct	TypeToSymbol< const T >

struct	TypeToSymbol< double >

struct	TypeToSymbol< float >

struct	TypeToSymbol< int16_t >

struct	TypeToSymbol< int32_t >

struct	TypeToSymbol< int64_t >

struct	TypeToSymbol< math::Mat3< T > >

struct	TypeToSymbol< math::Mat4< T > >

struct	TypeToSymbol< math::Vec2< T > >

struct	TypeToSymbol< math::Vec3< T > >

struct	TypeToSymbol< math::Vec4< T > >

struct	TypeToSymbol< T * >

struct	TypeToSymbol< T[S]>

struct	TypeToSymbol< void >

struct	VolumeKernelBuffer
	The second volume kernel, responsible for providing the core layer of SIMD optimisations by invoking this kernel across a range of values. More...

struct	VolumeKernelNode
	The third volume kernel, providing an agnostic way to modify a single tile value without passing through the buffer states. Note that this kernel is mainly utility and one of the value kernels should almost always be preferred. More...

struct	VolumeKernelValue
	The primary volume kernel. This function holds the generated body of AX programs. More...

Typedefs
using	V2D = ArgType< double, 2 >

using	V2F = ArgType< float, 2 >

using	V2I = ArgType< int32_t, 2 >

using	V3D = ArgType< double, 3 >

using	V3F = ArgType< float, 3 >

using	V3I = ArgType< int32_t, 3 >

using	V4D = ArgType< double, 4 >

using	V4F = ArgType< float, 4 >

using	V4I = ArgType< int32_t, 4 >

using	M3D = ArgType< double, 9 >

using	M3F = ArgType< float, 9 >

using	M4D = ArgType< double, 16 >

using	M4F = ArgType< float, 16 >

using	CastFunction = std::function< llvm::Value (llvm::IRBuilder<> &, llvm::Value , llvm::Type *)>

using	BinaryFunction = std::function< llvm::Value (llvm::IRBuilder<> &, llvm::Value , llvm::Value *)>

Functions
FunctionRegistry::UniquePtr	createDefaultRegistry (const FunctionOptions *op=nullptr)
	Creates a registry with the default set of registered functions including math functions, point functions and volume functions. More...

void	insertStandardFunctions (FunctionRegistry &reg, const FunctionOptions *options=nullptr)
	Populates a function registry with all available "standard" AX library function. This primarily consists of all mathematical ops on AX containers (scalars, vectors, matrices) and other stl built-ins. More...

void	insertVDBPointFunctions (FunctionRegistry &reg, const FunctionOptions *options=nullptr)
	Populates a function registry with all available OpenVDB Point AX library function. More...

void	insertVDBVolumeFunctions (FunctionRegistry &reg, const FunctionOptions *options=nullptr)
	Populates a function registry with all available OpenVDB Volume AX library function. More...

template<typename SignatureT >
llvm::Type *	llvmTypesFromSignature (llvm::LLVMContext &C, std::vector< llvm::Type * > *types=nullptr)
	Populate a vector of llvm types from a function signature declaration. More...

template<typename SignatureT >
llvm::FunctionType *	llvmFunctionTypeFromSignature (llvm::LLVMContext &C)
	Generate an LLVM FunctionType from a function signature. More...

void	printSignature (std::ostream &os, const std::vector< llvm::Type * > &types, const llvm::Type returnType, const char name=nullptr, const std::vector< const char * > &names={}, const bool axTypes=false)
	Print a function signature to the provided ostream. More...

template<typename T >
llvm::Constant *	llvmConstant (const T t, llvm::Type *type)
	Returns an llvm Constant holding a scalar value. More...

llvm::IntegerType *	llvmIntType (const uint32_t size, llvm::LLVMContext &C)
	Returns an llvm IntegerType given a requested size and context. More...

llvm::Type *	llvmFloatType (const uint32_t size, llvm::LLVMContext &C)
	Returns an llvm floating point Type given a requested size and context. More...

llvm::Type *	llvmTypeFromToken (const ast::tokens::CoreType &type, llvm::LLVMContext &C)
	Returns an llvm type representing a type defined by a string. More...

ast::tokens::CoreType	tokenFromLLVMType (const llvm::Type *type)
	Return a corresponding AX token which represents the given LLVM Type. More...

void	valuesToTypes (const std::vector< llvm::Value * > &values, std::vector< llvm::Type * > &types)
	Populate a vector of llvm Types from a vector of llvm values. More...

void	llvmTypeToString (const llvm::Type *const type, std::string &str)
	Prints an llvm type to a std string. More...

llvm::Type *	getBaseContainedType (llvm::Type *const type)
	Return the base llvm value which is being pointed to through any number of layered pointers. More...

template<typename ValueT >
llvm::Value *	llvmPointerFromAddress (const ValueT *const &ptr, llvm::IRBuilder<> &builder)
	Return an llvm value representing a pointer to the provided ptr builtin ValueT. More...

llvm::Value *	insertStaticAlloca (llvm::IRBuilder<> &B, llvm::Type type, llvm::Value size=nullptr)
	Insert a stack allocation at the beginning of the current function of the provided type and size. The IRBuilder's insertion point must be set to a BasicBlock with a valid Function parent. More...

llvm::Argument *	extractArgument (llvm::Function *F, const size_t idx)

llvm::Argument *	extractArgument (llvm::Function *F, const std::string &name)

llvm::Type *	typePrecedence (llvm::Type const typeA, llvm::Type const typeB)
	Returns the highest order type from two LLVM Scalar types. More...

CastFunction	llvmArithmeticConversion (const llvm::Type const sourceType, const llvm::Type const targetType, const std::string &twine="")
	Returns a CastFunction which represents the corresponding instruction to convert a source llvm Type to a target llvm Type. If the conversion is unsupported, throws an error. More...

BinaryFunction	llvmBinaryConversion (const llvm::Type *const type, const ast::tokens::OperatorToken &token, const std::string &twine="")
	Returns a BinaryFunction representing the corresponding instruction to perform on two scalar values, relative to a provided operator token. Note that not all operations are supported on floating point types! If the token is not supported, or the llvm type is not a scalar type, throws an error. More...

bool	isValidCast (llvm::Type from, llvm::Type to)
	Returns true if the llvm Type 'from' can be safely cast to the llvm Type 'to'. More...

llvm::Value *	arithmeticConversion (llvm::Value value, llvm::Type targetType, llvm::IRBuilder<> &builder)
	Casts a scalar llvm Value to a target scalar llvm Type. Returns the cast scalar value of type targetType. More...

llvm::Value *	arrayCast (llvm::Value ptrToArray, llvm::Type targetElementType, llvm::IRBuilder<> &builder)
	Casts an array to another array of equal size but of a different element type. Both source and target array element types must be scalar types. The source array llvm Value should be a pointer to the array to cast. More...

void	arithmeticConversion (std::vector< llvm::Value * > &values, llvm::Type *targetElementType, llvm::IRBuilder<> &builder)
	Converts a vector of loaded llvm scalar values of the same type to a target scalar type. Each value is converted individually and the loaded result stored in the same location within values. More...

void	arithmeticConversion (std::vector< llvm::Value * > &values, llvm::IRBuilder<> &builder)
	Converts a vector of loaded llvm scalar values to the highest precision type stored amongst them. Any values which are not scalar types are ignored. More...

void	arithmeticConversion (llvm::Value &valueA, llvm::Value &valueB, llvm::IRBuilder<> &builder)
	Chooses the highest order llvm Type as defined by typePrecedence from either of the two incoming values and casts the other value to the choosen type if it is not already. The types of valueA and valueB are guaranteed to match. Both values must be scalar LLVM types. More...

llvm::Value *	boolComparison (llvm::Value *value, llvm::IRBuilder<> &builder)
	Performs a C style boolean comparison from a given scalar LLVM value. More...

llvm::Value *	binaryOperator (llvm::Value lhs, llvm::Value rhs, const ast::tokens::OperatorToken &token, llvm::IRBuilder<> &builder)

llvm::Value *	arrayIndexUnpack (llvm::Value *ptrToArray, const int16_t index, llvm::IRBuilder<> &builder)
	Unpack a particular element of an array and return a pointer to that element The provided llvm Value is expected to be a pointer to an array. More...

void	arrayUnpack (llvm::Value ptrToArray, std::vector< llvm::Value > &values, llvm::IRBuilder<> &builder, const bool loadElements=false)
	Unpack an array type into llvm Values which represent all its elements The provided llvm Value is expected to be a pointer to an array If loadElements is true, values will store loaded llvm values instead of pointers to the array elements. More...

void	array3Unpack (llvm::Value ptrToArray, llvm::Value &value1, llvm::Value &value2, llvm::Value &value3, llvm::IRBuilder<> &builder)
	Unpack the first three elements of an array. The provided llvm Value is expected to be a pointer to an array. More...

llvm::Value *	array3Pack (llvm::Value value1, llvm::Value value2, llvm::Value *value3, llvm::IRBuilder<> &builder)
	Pack three values into a new array and return a pointer to the newly allocated array. If the values are of a mismatching type, the highets order type is uses, as defined by typePrecedence. All llvm values are expected to a be a loaded scalar type. More...

llvm::Value *	arrayPack (llvm::Value *value, llvm::IRBuilder<> &builder, const size_t size=3)
	Pack a loaded llvm scalar value into a new array of a specified size and return a pointer to the newly allocated array. Each element of the new array will have the value of the given scalar. More...

llvm::Value *	arrayPack (const std::vector< llvm::Value * > &values, llvm::IRBuilder<> &builder)
	Pack a vector of loaded llvm scalar values into a new array of equal size and return a pointer to the newly allocated array. More...

llvm::Value *	arrayPackCast (std::vector< llvm::Value * > &values, llvm::IRBuilder<> &builder)
	Pack a vector of loaded llvm scalar values into a new array of equal size and return a pointer to the newly allocated array. arrayPackCast first checks all the contained types in values and casts all types to the highest order type present. All llvm values in values are expected to be loaded scalar types. More...

llvm::Value *	scalarToMatrix (llvm::Value *scalar, llvm::IRBuilder<> &builder, const size_t dim=3)

Typedef Documentation

using BinaryFunction = std::function<llvm::Value* (llvm::IRBuilder<>&, llvm::Value*, llvm::Value*)>

using CastFunction = std::function<llvm::Value* (llvm::IRBuilder<>&, llvm::Value*, llvm::Type*)>

Note: Function definitions for some types returned from automatic token to llvm IR operations. See llvmArithmeticConversion and llvmBianryConversion

using M3D = ArgType<double, 9>

using M3F = ArgType<float, 9>

using M4D = ArgType<double, 16>

using M4F = ArgType<float, 16>

using V2D = ArgType<double, 2>

using V2F = ArgType<float, 2>

using V2I = ArgType<int32_t, 2>

using V3D = ArgType<double, 3>

using V3F = ArgType<float, 3>

using V3I = ArgType<int32_t, 3>

using V4D = ArgType<double, 4>

using V4F = ArgType<float, 4>

using V4I = ArgType<int32_t, 4>

Function Documentation

llvm::Value* openvdb::v9_0::ax::codegen::arithmeticConversion	(	llvm::Value *	value,
		llvm::Type *	targetType,
		llvm::IRBuilder<> &	builder
	)

inline

Casts a scalar llvm Value to a target scalar llvm Type. Returns the cast scalar value of type targetType.

Parameters

value	A llvm scalar value to convert
targetType	The target llvm scalar type to convert to
builder	The current llvm IRBuilder

void openvdb::v9_0::ax::codegen::arithmeticConversion	(	std::vector< llvm::Value * > &	values,
		llvm::Type *	targetElementType,
		llvm::IRBuilder<> &	builder
	)

inline

Converts a vector of loaded llvm scalar values of the same type to a target scalar type. Each value is converted individually and the loaded result stored in the same location within values.

Parameters

values	A vector of llvm scalar values to convert
targetElementType	The target llvm scalar type to convert each value of the input vector
builder	The current llvm IRBuilder

void openvdb::v9_0::ax::codegen::arithmeticConversion	(	std::vector< llvm::Value * > &	values,
		llvm::IRBuilder<> &	builder
	)

inline

Converts a vector of loaded llvm scalar values to the highest precision type stored amongst them. Any values which are not scalar types are ignored.

Parameters

values	A vector of llvm scalar values to convert
builder	The current llvm IRBuilder

void openvdb::v9_0::ax::codegen::arithmeticConversion	(	llvm::Value *&	valueA,
		llvm::Value *&	valueB,
		llvm::IRBuilder<> &	builder
	)

inline

Chooses the highest order llvm Type as defined by typePrecedence from either of the two incoming values and casts the other value to the choosen type if it is not already. The types of valueA and valueB are guaranteed to match. Both values must be scalar LLVM types.

Parameters

valueA	The first llvm value
valueB	The second llvm value
builder	The current llvm IRBuilder

llvm::Value* openvdb::v9_0::ax::codegen::array3Pack	(	llvm::Value *	value1,
		llvm::Value *	value2,
		llvm::Value *	value3,
		llvm::IRBuilder<> &	builder
	)

inline

Pack three values into a new array and return a pointer to the newly allocated array. If the values are of a mismatching type, the highets order type is uses, as defined by typePrecedence. All llvm values are expected to a be a loaded scalar type.

Parameters

value1	The first array value
value2	The second array value
value3	The third array value
builder	The current llvm IRBuilder

void openvdb::v9_0::ax::codegen::array3Unpack	(	llvm::Value *	ptrToArray,
		llvm::Value *&	value1,
		llvm::Value *&	value2,
		llvm::Value *&	value3,
		llvm::IRBuilder<> &	builder
	)

inline

Unpack the first three elements of an array. The provided llvm Value is expected to be a pointer to an array.

Note: The elements are note loaded

Parameters

ptrToArray	A llvm value which is a pointer to a llvm array
value1	The first array value
value2	The second array value
value3	The third array value
builder	The current llvm IRBuilder

llvm::Value* openvdb::v9_0::ax::codegen::arrayCast	(	llvm::Value *	ptrToArray,
		llvm::Type *	targetElementType,
		llvm::IRBuilder<> &	builder
	)

inline

Casts an array to another array of equal size but of a different element type. Both source and target array element types must be scalar types. The source array llvm Value should be a pointer to the array to cast.

Parameters

ptrToArray	A llvm value which is a pointer to a llvm array
targetElementType	The target llvm scalar type to convert each element of the input array
builder	The current llvm IRBuilder

llvm::Value* openvdb::v9_0::ax::codegen::arrayIndexUnpack	(	llvm::Value *	ptrToArray,
		const int16_t	index,
		llvm::IRBuilder<> &	builder
	)

inline

Unpack a particular element of an array and return a pointer to that element The provided llvm Value is expected to be a pointer to an array.

Parameters

ptrToArray	A llvm value which is a pointer to a llvm array
index	The index at which to access the array
builder	The current llvm IRBuilder

llvm::Value* openvdb::v9_0::ax::codegen::arrayPack	(	llvm::Value *	value,
		llvm::IRBuilder<> &	builder,
		const size_t	size = `3`
	)

inline

Pack a loaded llvm scalar value into a new array of a specified size and return a pointer to the newly allocated array. Each element of the new array will have the value of the given scalar.

Parameters

value	The uniform scalar llvm value to pack into the array
builder	The current llvm IRBuilder
size	The size of the newly allocated array

llvm::Value* openvdb::v9_0::ax::codegen::arrayPack	(	const std::vector< llvm::Value * > &	values,
		llvm::IRBuilder<> &	builder
	)

inline

Pack a vector of loaded llvm scalar values into a new array of equal size and return a pointer to the newly allocated array.

Parameters

values	A vector of loaded llvm scalar values to pack
builder	The current llvm IRBuilder

llvm::Value* openvdb::v9_0::ax::codegen::arrayPackCast	(	std::vector< llvm::Value * > &	values,
		llvm::IRBuilder<> &	builder
	)

inline

Pack a vector of loaded llvm scalar values into a new array of equal size and return a pointer to the newly allocated array. arrayPackCast first checks all the contained types in values and casts all types to the highest order type present. All llvm values in values are expected to be loaded scalar types.

Parameters

values	A vector of loaded llvm scalar values to pack
builder	The current llvm IRBuilder

void openvdb::v9_0::ax::codegen::arrayUnpack	(	llvm::Value *	ptrToArray,
		std::vector< llvm::Value * > &	values,
		llvm::IRBuilder<> &	builder,
		const bool	loadElements = `false`
	)

inline

Unpack an array type into llvm Values which represent all its elements The provided llvm Value is expected to be a pointer to an array If loadElements is true, values will store loaded llvm values instead of pointers to the array elements.

Parameters

ptrToArray	A llvm value which is a pointer to a llvm array
values	A vector of llvm values where to store the array elements
builder	The current llvm IRBuilder
loadElements	Whether or not to load each array element into a register

llvm::Value* openvdb::v9_0::ax::codegen::binaryOperator	(	llvm::Value *	lhs,
		llvm::Value *	rhs,
		const ast::tokens::OperatorToken &	token,
		llvm::IRBuilder<> &	builder
	)

inline

@ brief Performs a binary operation on two loaded llvm scalar values of the same type. The type of operation performed is defined by the token (see the list of supported tokens in ast/Tokens.h. Returns a loaded llvm scalar result

Parameters

lhs	The left hand side value of the binary operation
rhs	The right hand side value of the binary operation
token	The token representing the binary operation to perform
builder	The current llvm IRBuilder

llvm::Value* openvdb::v9_0::ax::codegen::boolComparison	(	llvm::Value *	value,
		llvm::IRBuilder<> &	builder
	)

inline

Performs a C style boolean comparison from a given scalar LLVM value.

Parameters

value	The scalar llvm value to convert to a boolean
builder	The current llvm IRBuilder

FunctionRegistry::UniquePtr createDefaultRegistry ( const FunctionOptions * op = nullptr )

inline

Creates a registry with the default set of registered functions including math functions, point functions and volume functions.

Parameters

op	The current function options

llvm::Argument* openvdb::v9_0::ax::codegen::extractArgument	(	llvm::Function *	F,
		const size_t	idx
	)

inline

llvm::Argument* openvdb::v9_0::ax::codegen::extractArgument	(	llvm::Function *	F,
		const std::string &	name
	)

inline

llvm::Type* openvdb::v9_0::ax::codegen::getBaseContainedType ( llvm::Type *const type )

inline

Return the base llvm value which is being pointed to through any number of layered pointers.

Note: This function does not check for cyclical pointer dependencies

Parameters

type	A llvm pointer type to traverse

void openvdb::v9_0::ax::codegen::insertStandardFunctions	(	FunctionRegistry &	reg,
		const FunctionOptions *	options = `nullptr`
	)

Populates a function registry with all available "standard" AX library function. This primarily consists of all mathematical ops on AX containers (scalars, vectors, matrices) and other stl built-ins.

Parameters

reg	The function registry to populate
options	The current function options

llvm::Value* openvdb::v9_0::ax::codegen::insertStaticAlloca	(	llvm::IRBuilder<> &	B,
		llvm::Type *	type,
		llvm::Value *	size = `nullptr`
	)

inline

Insert a stack allocation at the beginning of the current function of the provided type and size. The IRBuilder's insertion point must be set to a BasicBlock with a valid Function parent.

Note: If a size is provided, the size must not depend on any other instructions. If it does, invalid LLVM IR will bb generated.

Parameters

B	The IRBuilder
type	The type to allocate
size	Optional count of allocations. If nullptr, runs a single allocation

void openvdb::v9_0::ax::codegen::insertVDBPointFunctions	(	FunctionRegistry &	reg,
		const FunctionOptions *	options = `nullptr`
	)

Populates a function registry with all available OpenVDB Point AX library function.

Parameters

reg	The function registry to populate
options	The current function options

void openvdb::v9_0::ax::codegen::insertVDBVolumeFunctions	(	FunctionRegistry &	reg,
		const FunctionOptions *	options = `nullptr`
	)

Populates a function registry with all available OpenVDB Volume AX library function.

Parameters

reg	The function registry to populate
options	The current function options

bool openvdb::v9_0::ax::codegen::isValidCast	(	llvm::Type *	from,
		llvm::Type *	to
	)

inline

Returns true if the llvm Type 'from' can be safely cast to the llvm Type 'to'.

CastFunction openvdb::v9_0::ax::codegen::llvmArithmeticConversion	(	const llvm::Type *const	sourceType,
		const llvm::Type *const	targetType,
		const std::string &	twine = `""`
	)

inline

Returns a CastFunction which represents the corresponding instruction to convert a source llvm Type to a target llvm Type. If the conversion is unsupported, throws an error.

Parameters

sourceType	The source type to cast
targetType	The target type to cast to
twine	An optional string description of the cast function. This can be used for for more verbose llvm information on IR compilation failure

BinaryFunction openvdb::v9_0::ax::codegen::llvmBinaryConversion	(	const llvm::Type *const	type,
		const ast::tokens::OperatorToken &	token,
		const std::string &	twine = `""`
	)

inline

Returns a BinaryFunction representing the corresponding instruction to perform on two scalar values, relative to a provided operator token. Note that not all operations are supported on floating point types! If the token is not supported, or the llvm type is not a scalar type, throws an error.

Note: Various default arguments are bound to provide a simple function call signature. For floating point operations, this includes a null pointer to the optional metadata node. For integer operations, this includes disabling all overflow/rounding optimisations

Parameters

type	The type defining the precision of the binary operation
token	The token used to create the relative binary operation
twine	An optional string description of the binary function. This can be used for for more verbose llvm information on IR compilation failure

llvm::Constant* openvdb::v9_0::ax::codegen::llvmConstant	(	const T	t,
		llvm::Type *	type
	)

inline

Returns an llvm Constant holding a scalar value.

Parameters

t	The scalar constant
type	The LLVM type. Can differ from the type of t, in which case the value will be cast to the llvm type

llvm::Type* openvdb::v9_0::ax::codegen::llvmFloatType	(	const uint32_t	size,
		llvm::LLVMContext &	C
	)

Returns an llvm floating point Type given a requested size and context.

Parameters

size	The size of the float to request, i.e. float - 32, double - 64 etc.
C	The LLVMContext to request the Type from.

llvm::FunctionType* openvdb::v9_0::ax::codegen::llvmFunctionTypeFromSignature ( llvm::LLVMContext & C )

inline

Generate an LLVM FunctionType from a function signature.

Parameters

C	The llvm context

llvm::IntegerType* openvdb::v9_0::ax::codegen::llvmIntType	(	const uint32_t	size,
		llvm::LLVMContext &	C
	)

Returns an llvm IntegerType given a requested size and context.

Parameters

size	The number of bits of the integer type
C	The LLVMContext to request the Type from.

llvm::Value* openvdb::v9_0::ax::codegen::llvmPointerFromAddress	(	const ValueT *const &	ptr,
		llvm::IRBuilder<> &	builder
	)

inline

Return an llvm value representing a pointer to the provided ptr builtin ValueT.

Note: This is probably not a suitable solution for anything other than POD types and should be used with caution.

Parameters

ptr	A pointer to a type of ValueT whose address will be computed and returned
builder	The current llvm IRBuilder

llvm::Type* openvdb::v9_0::ax::codegen::llvmTypeFromToken	(	const ast::tokens::CoreType &	type,
		llvm::LLVMContext &	C
	)

Returns an llvm type representing a type defined by a string.

Note: For string types, this function returns the element type, not the object type! The llvm type representing a char block of memory is LLVMType<char*>::get(C);

Parameters

type	The AX token type
C	The LLVMContext to request the Type from.

llvm::Type* openvdb::v9_0::ax::codegen::llvmTypesFromSignature	(	llvm::LLVMContext &	C,
		std::vector< llvm::Type * > *	types = `nullptr`
	)

inline

Populate a vector of llvm types from a function signature declaration.

Parameters

C	The llvm context
types	A vector of types to populate

void openvdb::v9_0::ax::codegen::llvmTypeToString	(	const llvm::Type *const	type,
		std::string &	str
	)

inline

Prints an llvm type to a std string.

Parameters

type	The llvm type to convert
str	The string to store the type info to

void openvdb::v9_0::ax::codegen::printSignature	(	std::ostream &	os,
		const std::vector< llvm::Type * > &	types,
		const llvm::Type *	returnType,
		const char *	name = `nullptr`,
		const std::vector< const char * > &	names = `{}`,
		const bool	axTypes = `false`
	)

Print a function signature to the provided ostream.

Parameters

os	The stream to print to
types	The function argument types
returnType	The return type of the function. Must not be a nullptr
name	The name of the function. If not provided, the return type neighbours the first parenthesis
names	Names of the function parameters. If a name is nullptr, it skipped
axTypes	Whether to try and convert the llvm::Types provided to AX types. If false, the llvm types are used.

llvm::Value* openvdb::v9_0::ax::codegen::scalarToMatrix	(	llvm::Value *	scalar,
		llvm::IRBuilder<> &	builder,
		const size_t	dim = `3`
	)

inline

ast::tokens::CoreType openvdb::v9_0::ax::codegen::tokenFromLLVMType ( const llvm::Type * type )

Return a corresponding AX token which represents the given LLVM Type.

Note: If the type does not exist in AX, ast::tokens::UNKNOWN is returned. Must not be a nullptr.

Parameters

type	a valid LLVM Type

llvm::Type* openvdb::v9_0::ax::codegen::typePrecedence	(	llvm::Type *const	typeA,
		llvm::Type *const	typeB
	)

inline

Returns the highest order type from two LLVM Scalar types.

Parameters

typeA	The first scalar llvm type
typeB	The second scalar llvm type

void openvdb::v9_0::ax::codegen::valuesToTypes	(	const std::vector< llvm::Value * > &	values,
		std::vector< llvm::Type * > &	types
	)

inline

Populate a vector of llvm Types from a vector of llvm values.

Parameters

values	A vector of llvm values to retrieve types from
types	A vector of llvm types to populate

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