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

#include <openvdb_ax/codegen/FunctionTypes.h>

Inherits SRetFunction< SignatureT, IRFunction< SignatureT > >.

Public Types
using	BaseT = SRetFunction< SignatureT, IRFunction< SignatureT >>

using	Ptr = std::shared_ptr< SRetFunction< SignatureT, IRFunction< SignatureT > >>

using	Traits = FunctionTraits< SignatureT >

using	GeneratorCb = std::function< llvm::Value (const std::vector< llvm::Value > &, llvm::IRBuilder<> &)>
	The IR callback function which will write the LLVM IR for this function's body. More...

enum	SignatureMatch { None = 0, Size, Implicit, Explicit }
	The result type from calls to Function::match. More...

Public Member Functions
	IRFunctionSRet (const std::string &symbol, const IRFunctionBase::GeneratorCb &gen)

	~IRFunctionSRet () override=default

Function::SignatureMatch	match (const std::vector< llvm::Type * > &args, llvm::LLVMContext &C) const override
	Override of match which inserts the SRET type such that the base class methods ignore it. More...

llvm::Value *	call (const std::vector< llvm::Value * > &args, llvm::IRBuilder<> &B, const bool cast) const override
	Override of call which allocates the required SRET llvm::Value for this function. More...

void	print (llvm::LLVMContext &C, std::ostream &os, const char *name=nullptr, const bool axTypes=true) const override
	Override of print to avoid printing out the SRET type. More...

llvm::Type *	types (std::vector< llvm::Type * > &types, llvm::LLVMContext &C) const override
	Populate a vector of llvm::Types which describe this function signature. This method is used by Function::create, Function::print and Function::match. More...

void	setEmbedIR (bool on)
	Enable or disable the embedding of IR. Embedded IR is currently required for function which use parent function parameters. More...

bool	hasEmbedIR () const

llvm::Function *	create (llvm::LLVMContext &C, llvm::Module *M) const override
	Override for the creation of an IR function. This ensures that the body and prototype of the function are generated if a Module is provided. More...

llvm::Function *	create (llvm::Module &M) const
	Convenience method which always uses the provided module to find the function or insert it if necessary. More...

llvm::Function *	get (const llvm::Module &M) const
	Convenience method for calling M.getFunction(symbol). Returns a nullptr if the function has not yet been created or if it is embedded IR. More...

size_t	size () const
	The number of arguments that this function has. More...

const char *	symbol () const
	The function symbol name. More...

const char *	argName (const size_t idx) const
	Returns the descriptive name of the given argument index. More...

bool	hasParamAttribute (const size_t i, const llvm::Attribute::AttrKind &kind) const
	Builder methods. More...

void	setArgumentNames (std::vector< const char * > names)

const std::vector< const char * > &	dependencies () const

void	setDependencies (std::vector< const char * > deps)

void	setFnAttributes (const std::vector< llvm::Attribute::AttrKind > &in)

void	setRetAttributes (const std::vector< llvm::Attribute::AttrKind > &in)

void	setParamAttributes (const size_t i, const std::vector< llvm::Attribute::AttrKind > &in)

Protected Member Functions
void	verifyResultType (const llvm::Type result, const llvm::Type expected) const

Static Protected Member Functions
static void	cast (std::vector< llvm::Value * > &args, const std::vector< llvm::Type * > &types, llvm::IRBuilder<> &B)
	Cast the provided arguments to the given type as supported by implicit casting of function types. If the types already match OR if a cast cannot be performed, nothing is done to the argument. More...

Protected Attributes
const GeneratorCb	mGen

bool	mEmbedIR

Detailed Description

template<typename SignatureT>
struct openvdb::v9_0::ax::codegen::IRFunctionSRet< SignatureT >

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

Member Typedef Documentation

using BaseT = SRetFunction<SignatureT, IRFunction<SignatureT>>

using GeneratorCb = std::function<llvm::Value* (const std::vector<llvm::Value*>&, llvm::IRBuilder<>&)>

inherited

The IR callback function which will write the LLVM IR for this function's body.

The first argument is the vector of functional arguments. i.e. a representation of the value that the callback has been invoked with. The last argument is the IR builder which should be used to generate the function body IR.

Note: You can return a nullptr from this method which will represent a ret void, a ret void instruction, or an actual value

using Ptr = std::shared_ptr<SRetFunction<SignatureT, IRFunction< SignatureT > >>

inherited

using Traits = FunctionTraits<SignatureT>

inherited

Member Enumeration Documentation

enum SignatureMatch

inherited

The result type from calls to Function::match.

Enumerator
None
Size
Implicit
Explicit

Constructor & Destructor Documentation

IRFunctionSRet	(	const std::string &	symbol,
		const IRFunctionBase::GeneratorCb &	gen
	)

inline

~IRFunctionSRet ( )

overridedefault

Member Function Documentation

const char* argName ( const size_t idx ) const

inlineinherited

Returns the descriptive name of the given argument index.

If the index is greater than the number of arguments, an empty string is returned.

Parameters

idx	The index of the argument

llvm::Value* call	(	const std::vector< llvm::Value * > &	args,
		llvm::IRBuilder<> &	B,
		const bool	cast
	)		const

inlineoverridevirtualinherited

Override of call which allocates the required SRET llvm::Value for this function.

Note: Unlike other function where the returned llvm::Value* is a llvm::CallInst (which also represents the return value), SRET functions return the allocated 1st argument i.e. not a llvm::CallInst

Reimplemented from IRFunctionBase.

static void cast	(	std::vector< llvm::Value * > &	args,
		const std::vector< llvm::Type * > &	types,
		llvm::IRBuilder<> &	B
	)

staticprotectedinherited

Cast the provided arguments to the given type as supported by implicit casting of function types. If the types already match OR if a cast cannot be performed, nothing is done to the argument.

llvm::Function* create ( llvm::Module & M ) const

inlineinherited

Convenience method which always uses the provided module to find the function or insert it if necessary.

Parameters

M	The llvm::Module to use

llvm::Function* create	(	llvm::LLVMContext &	C,
		llvm::Module *	M
	)		const

overridevirtualinherited

Override for the creation of an IR function. This ensures that the body and prototype of the function are generated if a Module is provided.

Note: A nullptr is returned if mEmbedIR is true and no action is performed.; Throws if this function has been initialized with a nullptr generator callback. In this case, the function prototype will be created, but not the function body.; Throws if the return type of the generator callback does not match the function prototype. In this case, both the prototype and the function body will be created and inserted, but the IR will be invalid.

Reimplemented from Function.

const std::vector<const char*>& dependencies ( ) const

inlineinherited

llvm::Function* get ( const llvm::Module & M ) const

inherited

Convenience method for calling M.getFunction(symbol). Returns a nullptr if the function has not yet been created or if it is embedded IR.

Parameters

M	The llvm::Module to use

bool hasEmbedIR ( ) const

inlineinherited

bool hasParamAttribute	(	const size_t	i,
		const llvm::Attribute::AttrKind &	kind
	)		const

inlineinherited

Builder methods.

Function::SignatureMatch match	(	const std::vector< llvm::Type * > &	args,
		llvm::LLVMContext &	C
	)		const

inlineoverridevirtualinherited

Override of match which inserts the SRET type such that the base class methods ignore it.

Reimplemented from Function.

void print	(	llvm::LLVMContext &	C,
		std::ostream &	os,
		const char *	name = `nullptr`,
		const bool	axTypes = `true`
	)		const

inlineoverridevirtualinherited

Override of print to avoid printing out the SRET type.

Reimplemented from Function.

void setArgumentNames ( std::vector< const char * > names )

inlineinherited

void setDependencies ( std::vector< const char * > deps )

inlineinherited

void setEmbedIR ( bool on )

inlineinherited

Enable or disable the embedding of IR. Embedded IR is currently required for function which use parent function parameters.

void setFnAttributes ( const std::vector< llvm::Attribute::AttrKind > & in )

inlineinherited

void setParamAttributes	(	const size_t	i,
		const std::vector< llvm::Attribute::AttrKind > &	in
	)

inlineinherited

void setRetAttributes ( const std::vector< llvm::Attribute::AttrKind > & in )

inlineinherited

size_t size ( ) const

inlineinherited

The number of arguments that this function has.

const char* symbol ( ) const

inlineinherited

The function symbol name.

This will be used as its identifier in IR and must be unique.

llvm::Type* types	(	std::vector< llvm::Type * > &	,
		llvm::LLVMContext &
	)		const

inlineoverridevirtualinherited

Populate a vector of llvm::Types which describe this function signature. This method is used by Function::create, Function::print and Function::match.

Implements IRFunctionBase.

void verifyResultType	(	const llvm::Type *	result,
		const llvm::Type *	expected
	)		const

inlineprotectedinherited

Member Data Documentation

bool mEmbedIR

protectedinherited

const GeneratorCb mGen

protectedinherited

Public Types

Public Member Functions

Protected Member Functions

Static Protected Member Functions

Protected Attributes

Detailed Description

template<typename SignatureT> struct openvdb::v9_0::ax::codegen::IRFunctionSRet< SignatureT >

Member Typedef Documentation

Member Enumeration Documentation

Constructor & Destructor Documentation

Member Function Documentation

Member Data Documentation

template<typename SignatureT>
struct openvdb::v9_0::ax::codegen::IRFunctionSRet< SignatureT >