Tuple node

Builds a Tuple from single values. More...

Functions
ir_node **	get_Tuple_preds_arr (ir_node *node)
	Returns all predecessors of Tuple node node as array.
int	get_Tuple_n_preds (const ir_node *node)
	Returns number of predecessors of Tuple node node.
ir_node *	get_Tuple_pred (const ir_node *node, int pos)
	Returns predecessor number pos of Tuple node node.
void	set_Tuple_pred (ir_node *node, int pos, ir_node *pred)
	Sets value pred as predecessor number pos of Tuple node node.
ir_node *	new_rd_Tuple (dbg_info *dbgi, ir_node *block, int arity, ir_node *const *in)
	Construct a Tuple node.
ir_node *	new_r_Tuple (ir_node *block, int arity, ir_node *const *in)
	Construct a Tuple node.
ir_node *	new_d_Tuple (dbg_info *dbgi, int arity, ir_node *const *in)
	Construct a Tuple node.
ir_node *	new_Tuple (int arity, ir_node *const *in)
	Construct a Tuple node.
int	is_Tuple (const ir_node *node)
	Test if node is a Tuple.
ir_op *	get_op_Tuple (void)
	Returns opcode for Tuple nodes.
Variables
ir_op *	op_Tuple
	Tuple opcode.

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Detailed Description

Builds a Tuple from single values.

This is needed to implement optimizations that remove a node that produced a tuple. The node can be replaced by the Tuple operation so that the following Proj nodes have not to be changed. (They are hard to find due to the implementation with pointers in only one direction.) The Tuple node is smaller than any other node, so that a node can be changed into a Tuple by just changing its opcode and giving it a new in array.

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Function Documentation

ir_op* get_op_Tuple

(

void

)

Returns opcode for Tuple nodes.

int get_Tuple_n_preds

(

const ir_node *

node

)

Returns number of predecessors of Tuple node node.

ir_node* get_Tuple_pred	(	const ir_node *	node,
		int	pos
	)

Returns predecessor number pos of Tuple node node.

ir_node** get_Tuple_preds_arr

(

ir_node *

node

)

Returns all predecessors of Tuple node node as array.

int is_Tuple

(

const ir_node *

node

)

Test if node is a Tuple.

Returns:

1 if the node is a Tuple node, 0 otherwise

ir_node* new_d_Tuple	(	dbg_info *	dbgi,
		int	arity,
		ir_node *const *	in
	)

Construct a Tuple node.

Parameters:

dbgi	A pointer to debug information.
arity	size of additional inputs array
in	additional inputs

ir_node* new_r_Tuple	(	ir_node *	block,
		int	arity,
		ir_node *const *	in
	)

Construct a Tuple node.

Parameters:

block	The IR block the node belongs to.
arity	size of additional inputs array
in	additional inputs

ir_node* new_rd_Tuple	(	dbg_info *	dbgi,
		ir_node *	block,
		int	arity,
		ir_node *const *	in
	)

Construct a Tuple node.

Parameters:

dbgi	A pointer to debug information.
block	The IR block the node belongs to.
arity	size of additional inputs array
in	additional inputs

ir_node* new_Tuple	(	int	arity,
		ir_node *const *	in
	)

Construct a Tuple node.

Parameters:

arity	size of additional inputs array
in	additional inputs

void set_Tuple_pred	(	ir_node *	node,
		int	pos,
		ir_node *	pred
	)

Sets value pred as predecessor number pos of Tuple node node.

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Variable Documentation

ir_op* op_Tuple

Tuple opcode.

Definition at line 364 of file opcodes.h.