Horizontally reduce a vector to a scalar or narrower vector using the given commutative and associative binary operator. More...

#include <IR.h>

Inherits Halide::Internal::ExprNode< VectorReduce >.

Public Types
enum	Operator { Add, SaturatingAdd, Mul, Min, Max, And, Or }

Static Public Member Functions
static Expr	make (Operator op, Expr vec, int lanes)

Public Attributes
Expr	value

Operator	op

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. More...

IRNodeType	node_type
	Each IR node subclass has a unique identifier. More...

Static Public Attributes
static const IRNodeType	_node_type = IRNodeType::VectorReduce

Additional Inherited Members
Public Member Functions inherited from Halide::Internal::ExprNode< VectorReduce >
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. More...

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

Detailed Description

Horizontally reduce a vector to a scalar or narrower vector using the given commutative and associative binary operator.

The reduction factor is dictated by the number of lanes in the input and output types. Groups of adjacent lanes are combined. The number of lanes in the input type must be a divisor of the number of lanes of the output type.

Definition at line 929 of file IR.h.