tvm::BaseFuncNode Class Reference

Base node of all functions. More...

#include <function.h>

Inheritance diagram for tvm::BaseFuncNode:

Collaboration diagram for tvm::BaseFuncNode:

Public Member Functions
template<typename TObjectRef >
Optional< TObjectRef >	GetAttr (const std::string &attr_key, Optional< TObjectRef > default_value=std::nullopt) const
	Get a function attribute. More...
template<typename TObjectRef >
Optional< TObjectRef >	GetAttr (const std::string &attr_key, TObjectRef default_value) const
bool	HasNonzeroAttr (const std::string &attr_key) const
	Check whether the function has an non-zero integer attr. More...
LinkageType	GetLinkageType () const
	Get the type of the linkage. More...
	TVM_DECLARE_BASE_OBJECT_INFO (BaseFuncNode, RelaxExprNode)
Public Member Functions inherited from tvm::RelaxExprNode
	TVM_DECLARE_BASE_OBJECT_INFO (RelaxExprNode, BaseExprNode)
Public Member Functions inherited from tvm::BaseExprNode
	TVM_DECLARE_BASE_OBJECT_INFO (BaseExprNode, Object)

Static Public Member Functions
static void	RegisterReflection ()
Static Public Member Functions inherited from tvm::RelaxExprNode
static void	RegisterReflection ()
Static Public Member Functions inherited from tvm::BaseExprNode
static void	RegisterReflection ()

Public Attributes
DictAttrs	attrs
	Additional attributes storing the meta-data. More...
Public Attributes inherited from tvm::RelaxExprNode
Optional< ObjectRef >	struct_info_ = Optional<ObjectRef>()
	Stores the result of structure information of the expression that encapsulate both static shape and runtime information such as shape. More...
Public Attributes inherited from tvm::BaseExprNode
Span	span
	Span that points to the original source code. Reserved debug information. More...

Static Public Attributes
static constexpr const char *	_type_key = "ir.BaseFunc"
static constexpr const uint32_t	_type_child_slots = 2
Static Public Attributes inherited from tvm::RelaxExprNode
static constexpr const char *	_type_key = "ir.RelaxExpr"
static constexpr const uint32_t	_type_child_slots = 22
Static Public Attributes inherited from tvm::BaseExprNode
static constexpr const char *	_type_key = "ir.BaseExpr"
static constexpr TVMFFISEqHashKind	_type_s_eq_hash_kind = kTVMFFISEqHashKindTreeNode
static constexpr const uint32_t	_type_child_slots = 64

Detailed Description

Base node of all functions.

We support several variants of functions throughout the stack. All of the functions share the same type system to support cross variant calls.

See also

BaseFunc

Member Function Documentation

GetAttr() [1/2]

template<typename TObjectRef >

Optional<TObjectRef> tvm::BaseFuncNode::GetAttr ( const std::string &  attr_key, Optional< TObjectRef >  default_value = std::nullopt  ) const

inline

Get a function attribute.

Parameters

attr_key	The attribute key.
default_value	The default value if the key does not exist, defaults to nullptr.

Returns

The result

Template Parameters

TOBjectRef

the expected object type.

Exceptions

Error

if the key exists but the value does not match TObjectRef

void GetAttrExample(const BaseFunc& f) {
  auto value = f->GetAttr<Integer>("AttrKey", 0);
}

GetAttr() [2/2]

template<typename TObjectRef >

Optional<TObjectRef> tvm::BaseFuncNode::GetAttr ( const std::string &  attr_key, TObjectRef  default_value  ) const

inline

GetLinkageType()

LinkageType tvm::BaseFuncNode::GetLinkageType ( ) const

inline

Get the type of the linkage.

Currently, we only consider external/internal linkage. This can be extended in the future when necessary.

Returns

Linkage type.

void Example(const BaseFunc& f) {
  if (f->GetLinkageType() == tvm::LinkageType::kExternal) {
    // Do not remove a function with external linkage
  }
}

HasNonzeroAttr()

bool tvm::BaseFuncNode::HasNonzeroAttr ( const std::string &  attr_key ) const

inline

Check whether the function has an non-zero integer attr.

This function can be used to check whether an optional attribute mark(e.g. inline) exists.

Parameters

attr_key

The key to the attribute.

Returns

The check result.

void HasNonzeroAttrExample(const BaseFunc& f) {
  if (f->HasNonzeroAttr(attr::kInline)) {
    // inline the function.
  }
}

RegisterReflection()

static void tvm::BaseFuncNode::RegisterReflection ( )

inlinestatic

TVM_DECLARE_BASE_OBJECT_INFO()

tvm::BaseFuncNode::TVM_DECLARE_BASE_OBJECT_INFO	(	BaseFuncNode	,
		RelaxExprNode
	)

Member Data Documentation

_type_child_slots

constexpr const uint32_t tvm::BaseFuncNode::_type_child_slots = 2

staticconstexpr

_type_key

constexpr const char* tvm::BaseFuncNode::_type_key = "ir.BaseFunc"

staticconstexpr

attrs

DictAttrs tvm::BaseFuncNode::attrs

Additional attributes storing the meta-data.

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

• include/tvm/ir/function.h