Tuple node

Functions
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.
int	get_Tuple_n_preds (ir_node const *node)
	Get the number of Tuple preds.
ir_node *	get_Tuple_pred (ir_node const *node, int pos)
	Get the Tuple pred with index pos.
void	set_Tuple_pred (ir_node *node, int pos, ir_node *pred)
	Set the Tuple pred with index pos.
ir_node **	get_Tuple_pred_arr (ir_node *node)
	Get an array of all Tuple preds.
ir_op *	get_op_Tuple (void)
	Returns opcode for Tuple nodes.

Variables
ir_op *	op_Tuple
	Tuple opcode.

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.

Function Documentation

get_op_Tuple()

ir_op * get_op_Tuple

(

void

)

Returns opcode for Tuple nodes.

get_Tuple_n_preds()

int get_Tuple_n_preds

(

ir_node const *

node

)

Get the number of Tuple preds.

get_Tuple_pred()

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

Get the Tuple pred with index pos.

get_Tuple_pred_arr()

ir_node ** get_Tuple_pred_arr

(

ir_node *

node

)

Get an array of all Tuple preds.

is_Tuple()

int is_Tuple

(

const ir_node *

node

)

Test if node is a Tuple.

Returns

1 if the node is a Tuple node, 0 otherwise

new_d_Tuple()

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

new_r_Tuple()

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

new_rd_Tuple()

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

new_Tuple()

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

Construct a Tuple node.

Parameters

arity	size of additional inputs array
in	additional inputs

set_Tuple_pred()

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

Set the Tuple pred with index pos.

Variable Documentation

op_Tuple

ir_op* op_Tuple

Tuple opcode.

Definition at line 4238 of file nodes.h.