A function call. More...

#include <IR.h>

Inheritance diagram for Halide::Internal::Call:

Public Types
enum	CallType { Image , Extern , ExternCPlusPlus , PureExtern , Halide , Intrinsic , PureIntrinsic }

enum	IntrinsicOp { abs , absd , add_image_checks_marker , alloca , bitwise_and , bitwise_not , bitwise_or , bitwise_xor , bool_to_mask , bundle , call_cached_indirect_function , cast_mask , concat_bits , count_leading_zeros , count_trailing_zeros , debug_to_file , declare_box_touched , div_round_to_zero , dynamic_shuffle , extract_bits , extract_mask_element , get_user_context , gpu_thread_barrier , halving_add , halving_sub , hvx_gather , hvx_scatter , hvx_scatter_acc , hvx_scatter_release , if_then_else , if_then_else_mask , image_load , image_store , lerp , likely , likely_if_innermost , load_typed_struct_member , make_struct , memoize_expr , mod_round_to_zero , mul_shift_right , mux , popcount , prefetch , profiling_enable_instance_marker , promise_clamped , random , register_destructor , require , require_mask , return_second , rewrite_buffer , round , rounding_halving_add , rounding_mul_shift_right , rounding_shift_left , rounding_shift_right , saturating_add , saturating_sub , saturating_cast , scatter_gather , select_mask , shift_left , shift_right , signed_integer_overflow , size_of_halide_buffer_t , skip_stages_marker , sliding_window_marker , sorted_avg , strict_float , stringify , target_arch_is , target_bits , target_has_feature , target_natural_vector_size , target_os_is , undef , unreachable , unsafe_promise_clamped , widen_right_add , widen_right_mul , widen_right_sub , widening_add , widening_mul , widening_shift_left , widening_shift_right , widening_sub , get_runtime_vscale , IntrinsicOpCount }

typedef const char *const	ConstString

Public Member Functions
bool	is_pure () const
	Check if a call node is pure within a pipeline, meaning that the same args always give the same result, and the calls can be reordered, duplicated, unified, etc without changing the meaning of anything.

bool	is_intrinsic () const

bool	is_intrinsic (IntrinsicOp op) const

bool	is_intrinsic (std::initializer_list< IntrinsicOp > intrinsics) const

bool	is_tag () const

bool	is_extern () const

Public Member Functions inherited from Halide::Internal::ExprNode< Call >
void	accept (IRVisitor *v) const override
	We use the visitor pattern to traverse IR nodes throughout the compiler, so we have a virtual accept method which accepts visitors.

Expr	mutate_expr (IRMutator *v) const override

	ExprNode ()

	~ExprNode () override=default

Public Member Functions inherited from Halide::Internal::BaseExprNode
	BaseExprNode (IRNodeType t)

Public Member Functions inherited from Halide::Internal::IRNode
	IRNode (IRNodeType t)

virtual	~IRNode ()=default

Static Public Member Functions
static const char *	get_intrinsic_name (IntrinsicOp op)

static Expr	make (Type type, IntrinsicOp op, const std::vector< Expr > &args, CallType call_type, FunctionPtr func=FunctionPtr(), int value_index=0, const Buffer<> &image=Buffer<>(), Parameter param=Parameter())

static Expr	make (Type type, const std::string &name, const std::vector< Expr > &args, CallType call_type, FunctionPtr func=FunctionPtr(), int value_index=0, Buffer<> image=Buffer<>(), Parameter param=Parameter())

static Expr	make (const Function &func, const std::vector< Expr > &args, int idx=0)
	Convenience constructor for calls to other halide functions.

static Expr	make (const Buffer<> &image, const std::vector< Expr > &args)
	Convenience constructor for loads from concrete images.

static Expr	make (const Parameter &param, const std::vector< Expr > &args)
	Convenience constructor for loads from images parameters.

static const Call *	as_intrinsic (const Expr &e, std::initializer_list< IntrinsicOp > intrinsics)
	Returns a pointer to a call node if the expression is a call to one of the requested intrinsics.

static const Call *	as_tag (const Expr &e)

Public Attributes
std::string	name

std::vector< Expr >	args

CallType	call_type

FunctionPtr	func

int	value_index

Buffer	image

Parameter	param

Public Attributes inherited from Halide::Internal::BaseExprNode
Type	type

Public Attributes inherited from Halide::Internal::IRNode
RefCount	ref_count
	These classes are all managed with intrusive reference counting, so we also track a reference count.

IRNodeType	node_type
	Each IR node subclass has a unique identifier.

Static Public Attributes
static HALIDE_EXPORT ConstString	buffer_get_dimensions

static HALIDE_EXPORT ConstString	buffer_get_min

static HALIDE_EXPORT ConstString	buffer_get_extent

static HALIDE_EXPORT ConstString	buffer_get_stride

static HALIDE_EXPORT ConstString	buffer_get_max

static HALIDE_EXPORT ConstString	buffer_get_host

static HALIDE_EXPORT ConstString	buffer_get_device

static HALIDE_EXPORT ConstString	buffer_get_device_interface

static HALIDE_EXPORT ConstString	buffer_get_shape

static HALIDE_EXPORT ConstString	buffer_get_host_dirty

static HALIDE_EXPORT ConstString	buffer_get_device_dirty

static HALIDE_EXPORT ConstString	buffer_get_type

static HALIDE_EXPORT ConstString	buffer_set_host_dirty

static HALIDE_EXPORT ConstString	buffer_set_device_dirty

static HALIDE_EXPORT ConstString	buffer_is_bounds_query

static HALIDE_EXPORT ConstString	buffer_init

static HALIDE_EXPORT ConstString	buffer_init_from_buffer

static HALIDE_EXPORT ConstString	buffer_crop

static HALIDE_EXPORT ConstString	buffer_set_bounds

static HALIDE_EXPORT ConstString	trace

static const IRNodeType	_node_type = IRNodeType::Call

Detailed Description

A function call.

This can represent a call to some extern function (like sin), but it's also our multi-dimensional version of a Load, so it can be a load from an input image, or a call to another halide function. These two types of call nodes don't survive all the way down to code generation - the lowering process converts them to Load nodes.

Definition at line 490 of file IR.h.

Member Typedef Documentation

◆ ConstString

const char* const Halide::Internal::Call::ConstString

Definition at line 509 of file IR.h.

Member Enumeration Documentation

◆ CallType

enum Halide::Internal::Call::CallType

Enumerator
Image	A load from an input image.
Extern	A call to an external C-ABI function, possibly with side-effects.
ExternCPlusPlus	A call to an external C-ABI function, possibly with side-effects.
PureExtern	A call to a guaranteed-side-effect-free external function.
Halide	A call to a Func.
Intrinsic	A possibly-side-effecty compiler intrinsic, which has special handling during codegen.
PureIntrinsic	A side-effect-free version of the above.

Definition at line 493 of file IR.h.

◆ IntrinsicOp

enum Halide::Internal::Call::IntrinsicOp

Enumerator
abs
absd
add_image_checks_marker
alloca
bitwise_and
bitwise_not
bitwise_or
bitwise_xor
bool_to_mask
bundle
call_cached_indirect_function
cast_mask
concat_bits
count_leading_zeros
count_trailing_zeros
debug_to_file
declare_box_touched
div_round_to_zero
dynamic_shuffle
extract_bits
extract_mask_element
get_user_context
gpu_thread_barrier
halving_add
halving_sub
hvx_gather
hvx_scatter
hvx_scatter_acc
hvx_scatter_release
if_then_else
if_then_else_mask
image_load
image_store
lerp
likely
likely_if_innermost
load_typed_struct_member
make_struct
memoize_expr
mod_round_to_zero
mul_shift_right
mux
popcount
prefetch
profiling_enable_instance_marker
promise_clamped
random
register_destructor
require
require_mask
return_second
rewrite_buffer
round
rounding_halving_add
rounding_mul_shift_right
rounding_shift_left
rounding_shift_right
saturating_add
saturating_sub
saturating_cast
scatter_gather
select_mask
shift_left
shift_right
signed_integer_overflow
size_of_halide_buffer_t
skip_stages_marker
sliding_window_marker
sorted_avg
strict_float
stringify
target_arch_is
target_bits
target_has_feature
target_natural_vector_size
target_os_is
undef
unreachable
unsafe_promise_clamped
widen_right_add
widen_right_mul
widen_right_sub
widening_add
widening_mul
widening_shift_left
widening_shift_right
widening_sub
get_runtime_vscale
IntrinsicOpCount

Definition at line 518 of file IR.h.

Member Function Documentation

◆ get_intrinsic_name()

static const char * Halide::Internal::Call::get_intrinsic_name ( IntrinsicOp op )

static

Referenced by is_intrinsic().

◆ make() [1/5]

static Expr Halide::Internal::Call::make	(	Type	type,
		IntrinsicOp	op,
		const std::vector< Expr > &	args,
		CallType	call_type,
		FunctionPtr	func = FunctionPtr(),
		int	value_index = 0,
		const Buffer<> &	image = Buffer<>(),
		Parameter	param = Parameter() )

static

Referenced by make(), and make().

◆ make() [2/5]

static Expr Halide::Internal::Call::make	(	Type	type,
		const std::string &	name,
		const std::vector< Expr > &	args,
		CallType	call_type,
		FunctionPtr	func = FunctionPtr(),
		int	value_index = 0,
		Buffer<>	image = Buffer<>(),
		Parameter	param = Parameter() )

static

◆ make() [3/5]

static Expr Halide::Internal::Call::make	(	const Function &	func,
		const std::vector< Expr > &	args,
		int	idx = 0 )

static

Convenience constructor for calls to other halide functions.

◆ make() [4/5]

static Expr Halide::Internal::Call::make	(	const Buffer<> &	image,
		const std::vector< Expr > &	args )

inlinestatic

Convenience constructor for loads from concrete images.

Definition at line 700 of file IR.h.

References args, Image, image, make(), Halide::Buffer< T, Dims >::name(), and Halide::Buffer< T, Dims >::type().

◆ make() [5/5]

static Expr Halide::Internal::Call::make	(	const Parameter &	param,
		const std::vector< Expr > &	args )

inlinestatic

Convenience constructor for loads from images parameters.

Definition at line 705 of file IR.h.

References args, Image, make(), Halide::Parameter::name(), param, and Halide::Parameter::type().

◆ is_pure()

bool Halide::Internal::Call::is_pure ( ) const

inline

Check if a call node is pure within a pipeline, meaning that the same args always give the same result, and the calls can be reordered, duplicated, unified, etc without changing the meaning of anything.

Not transitive - doesn't guarantee the args themselves are pure. An example of a pure Call node is sqrt. If in doubt, don't mark a Call node as pure.

Definition at line 715 of file IR.h.

References call_type, Image, PureExtern, and PureIntrinsic.

◆ is_intrinsic() [1/3]

bool Halide::Internal::Call::is_intrinsic ( ) const

inline

Definition at line 721 of file IR.h.

References call_type, Intrinsic, and PureIntrinsic.

Referenced by is_intrinsic(), is_intrinsic(), is_tag(), Halide::Internal::IRMatcher::Intrin< intrin, Args >::match(), and Halide::Internal::IRMatcher::Overflow::match().

◆ is_intrinsic() [2/3]

bool Halide::Internal::Call::is_intrinsic ( IntrinsicOp op ) const

inline

Definition at line 726 of file IR.h.

References get_intrinsic_name(), and is_intrinsic().

◆ is_intrinsic() [3/3]

bool Halide::Internal::Call::is_intrinsic ( std::initializer_list< IntrinsicOp > intrinsics ) const

inline

Definition at line 730 of file IR.h.

References is_intrinsic().

◆ is_tag()

bool Halide::Internal::Call::is_tag ( ) const

inline

Definition at line 739 of file IR.h.

References is_intrinsic(), likely, likely_if_innermost, and strict_float.

◆ as_intrinsic()

static const Call * Halide::Internal::Call::as_intrinsic	(	const Expr &	e,
		std::initializer_list< IntrinsicOp >	intrinsics )

inlinestatic

Returns a pointer to a call node if the expression is a call to one of the requested intrinsics.

Definition at line 745 of file IR.h.

References Halide::Internal::IRHandle::as().

Referenced by as_tag().

◆ as_tag()

static const Call * Halide::Internal::Call::as_tag ( const Expr & e )

inlinestatic

Definition at line 756 of file IR.h.

References as_intrinsic(), likely, likely_if_innermost, and strict_float.

◆ is_extern()

bool Halide::Internal::Call::is_extern ( ) const

inline

Definition at line 760 of file IR.h.

References call_type, Extern, ExternCPlusPlus, and PureExtern.

Member Data Documentation

◆ name

std::string Halide::Internal::Call::name

Definition at line 491 of file IR.h.

Referenced by Halide::SimdOpCheckTest::check_one().

◆ args

std::vector<Expr> Halide::Internal::Call::args

Definition at line 492 of file IR.h.

Referenced by Halide::SimdOpCheckTest::check_one(), make(), make(), and Halide::Internal::IRMatcher::Intrin< intrin, Args >::match_args().

◆ call_type

CallType Halide::Internal::Call::call_type

Definition at line 501 of file IR.h.

Referenced by Halide::SimdOpCheckTest::check_one(), is_extern(), is_intrinsic(), and is_pure().

◆ buffer_get_dimensions

HALIDE_EXPORT ConstString Halide::Internal::Call::buffer_get_dimensions

static

Definition at line 651 of file IR.h.

◆ buffer_get_min

HALIDE_EXPORT ConstString Halide::Internal::Call::buffer_get_min

static

Definition at line 652 of file IR.h.

◆ buffer_get_extent

HALIDE_EXPORT ConstString Halide::Internal::Call::buffer_get_extent

static

Definition at line 653 of file IR.h.

◆ buffer_get_stride

HALIDE_EXPORT ConstString Halide::Internal::Call::buffer_get_stride

static

Definition at line 654 of file IR.h.

◆ buffer_get_max

HALIDE_EXPORT ConstString Halide::Internal::Call::buffer_get_max

static

Definition at line 655 of file IR.h.

◆ buffer_get_host

HALIDE_EXPORT ConstString Halide::Internal::Call::buffer_get_host

static

Definition at line 656 of file IR.h.

◆ buffer_get_device

HALIDE_EXPORT ConstString Halide::Internal::Call::buffer_get_device

static

Definition at line 657 of file IR.h.

◆ buffer_get_device_interface

HALIDE_EXPORT ConstString Halide::Internal::Call::buffer_get_device_interface

static

Definition at line 658 of file IR.h.

◆ buffer_get_shape

HALIDE_EXPORT ConstString Halide::Internal::Call::buffer_get_shape

static

Definition at line 659 of file IR.h.

◆ buffer_get_host_dirty

HALIDE_EXPORT ConstString Halide::Internal::Call::buffer_get_host_dirty

static

Definition at line 660 of file IR.h.

◆ buffer_get_device_dirty

HALIDE_EXPORT ConstString Halide::Internal::Call::buffer_get_device_dirty

static

Definition at line 661 of file IR.h.

◆ buffer_get_type

HALIDE_EXPORT ConstString Halide::Internal::Call::buffer_get_type

static

Definition at line 662 of file IR.h.

◆ buffer_set_host_dirty

HALIDE_EXPORT ConstString Halide::Internal::Call::buffer_set_host_dirty

static

Definition at line 663 of file IR.h.

◆ buffer_set_device_dirty

HALIDE_EXPORT ConstString Halide::Internal::Call::buffer_set_device_dirty

static

Definition at line 664 of file IR.h.

◆ buffer_is_bounds_query

HALIDE_EXPORT ConstString Halide::Internal::Call::buffer_is_bounds_query

static

Definition at line 665 of file IR.h.

◆ buffer_init

HALIDE_EXPORT ConstString Halide::Internal::Call::buffer_init

static

Definition at line 666 of file IR.h.

◆ buffer_init_from_buffer

HALIDE_EXPORT ConstString Halide::Internal::Call::buffer_init_from_buffer

static

Definition at line 667 of file IR.h.

◆ buffer_crop

HALIDE_EXPORT ConstString Halide::Internal::Call::buffer_crop

static

Definition at line 668 of file IR.h.

◆ buffer_set_bounds

HALIDE_EXPORT ConstString Halide::Internal::Call::buffer_set_bounds

static

Definition at line 669 of file IR.h.

◆ trace

HALIDE_EXPORT ConstString Halide::Internal::Call::trace

static

Definition at line 670 of file IR.h.

◆ func

FunctionPtr Halide::Internal::Call::func

Definition at line 674 of file IR.h.

Referenced by Halide::SimdOpCheckTest::check_one().

◆ value_index

int Halide::Internal::Call::value_index

Definition at line 678 of file IR.h.

◆ image

Buffer Halide::Internal::Call::image

Definition at line 682 of file IR.h.

Referenced by make().

◆ param

Parameter Halide::Internal::Call::param

Definition at line 686 of file IR.h.

Referenced by make().

◆ _node_type

const IRNodeType Halide::Internal::Call::_node_type = IRNodeType::Call

static

Definition at line 766 of file IR.h.

Referenced by Halide::Internal::IRMatcher::Overflow::match().

The documentation for this struct was generated from the following file:

src/IR.h

Public Types

Public Member Functions

Static Public Member Functions

Public Attributes

Static Public Attributes

Detailed Description

Member Typedef Documentation

◆ ConstString

Member Enumeration Documentation

◆ CallType

◆ IntrinsicOp

Member Function Documentation

◆ get_intrinsic_name()

◆ make() [1/5]

◆ make() [2/5]

◆ make() [3/5]

◆ make() [4/5]

◆ make() [5/5]

◆ is_pure()

◆ is_intrinsic() [1/3]

◆ is_intrinsic() [2/3]

◆ is_intrinsic() [3/3]

◆ is_tag()

◆ as_intrinsic()

◆ as_tag()

◆ is_extern()

Member Data Documentation

◆ name

◆ args

◆ call_type

◆ buffer_get_dimensions

◆ buffer_get_min

◆ buffer_get_extent

◆ buffer_get_stride

◆ buffer_get_max

◆ buffer_get_host

◆ buffer_get_device

◆ buffer_get_device_interface

◆ buffer_get_shape

◆ buffer_get_host_dirty

◆ buffer_get_device_dirty

◆ buffer_get_type

◆ buffer_set_host_dirty

◆ buffer_set_device_dirty

◆ buffer_is_bounds_query

◆ buffer_init

◆ buffer_init_from_buffer

◆ buffer_crop

◆ buffer_set_bounds

◆ trace

◆ func

◆ value_index

◆ image

◆ param

◆ _node_type