Phi node

Functions
ir_node *	new_rd_Phi_loop (dbg_info *db, ir_node *block, int arity, ir_node *in[])
	Constructor for memory Phi with keep-alive edge.
ir_node *	new_r_Phi_loop (ir_node *block, int arity, ir_node *in[])
	Constructor for memory Phi with keep-alive edge.
ir_node *	new_d_Phi_loop (dbg_info *db, int arity, ir_node *in[])
	Constructor for memory Phi with keep-alive edge.
ir_node *	new_Phi_loop (int arity, ir_node *in[])
	Constructor for memory Phi with keep-alive edge.
ir_node *	get_Phi_next (const ir_node *phi)
	Returns the next element of a block phi list.
void	set_Phi_next (ir_node *phi, ir_node *next)
	Sets the next link of a block Phi list.
ir_node *	new_rd_Phi (dbg_info *dbgi, ir_node *block, int arity, ir_node *const *in, ir_mode *mode)
	Construct a Phi node.
ir_node *	new_r_Phi (ir_node *block, int arity, ir_node *const *in, ir_mode *mode)
	Construct a Phi node.
ir_node *	new_d_Phi (dbg_info *dbgi, int arity, ir_node *const *in, ir_mode *mode)
	Construct a Phi node.
ir_node *	new_Phi (int arity, ir_node *const *in, ir_mode *mode)
	Construct a Phi node.
int	is_Phi (const ir_node *node)
	Test if node is a Phi.
int	get_Phi_n_preds (ir_node const *node)
	Get the number of Phi preds.
ir_node *	get_Phi_pred (ir_node const *node, int pos)
	Get the Phi pred with index pos.
void	set_Phi_pred (ir_node *node, int pos, ir_node *pred)
	Set the Phi pred with index pos.
ir_node **	get_Phi_pred_arr (ir_node *node)
	Get an array of all Phi preds.
int	get_Phi_loop (const ir_node *node)
	Returns loop attribute of a Phi node.
void	set_Phi_loop (ir_node *node, int loop)
	Sets loop attribute of a Phi node.
ir_op *	get_op_Phi (void)
	Returns opcode for Phi nodes.

Variables
ir_op *	op_Phi
	Phi opcode.

Detailed Description

Choose a value based on control flow. A phi node has 1 input for each predecessor of its block. If a block is entered from its nth predecessor all phi nodes produce their nth input as result.

Function Documentation

get_op_Phi()

ir_op * get_op_Phi

(

void

)

Returns opcode for Phi nodes.

get_Phi_loop()

int get_Phi_loop

(

const ir_node *

node

)

Returns loop attribute of a Phi node.

get_Phi_n_preds()

int get_Phi_n_preds

(

ir_node const *

node

)

Get the number of Phi preds.

get_Phi_next()

ir_node * get_Phi_next

(

const ir_node *

phi

)

Returns the next element of a block phi list.

get_Phi_pred()

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

Get the Phi pred with index pos.

get_Phi_pred_arr()

ir_node ** get_Phi_pred_arr

(

ir_node *

node

)

Get an array of all Phi preds.

is_Phi()

int is_Phi

(

const ir_node *

node

)

Test if node is a Phi.

Returns

1 if the node is a Phi node, 0 otherwise

new_d_Phi()

ir_node * new_d_Phi	(	dbg_info *	dbgi,
		int	arity,
		ir_node *const *	in,
		ir_mode *	mode )

Construct a Phi node.

Parameters

dbgi	A pointer to debug information.
arity	size of additional inputs array
in	additional inputs
mode	mode of the operations result

new_d_Phi_loop()

ir_node * new_d_Phi_loop	(	dbg_info *	db,
		int	arity,
		ir_node *	in[] )

Constructor for memory Phi with keep-alive edge.

new_Phi()

ir_node * new_Phi	(	int	arity,
		ir_node *const *	in,
		ir_mode *	mode )

Construct a Phi node.

Parameters

arity	size of additional inputs array
in	additional inputs
mode	mode of the operations result

new_Phi_loop()

ir_node * new_Phi_loop	(	int	arity,
		ir_node *	in[] )

Constructor for memory Phi with keep-alive edge.

new_r_Phi()

ir_node * new_r_Phi	(	ir_node *	block,
		int	arity,
		ir_node *const *	in,
		ir_mode *	mode )

Construct a Phi node.

Parameters

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

new_r_Phi_loop()

ir_node * new_r_Phi_loop	(	ir_node *	block,
		int	arity,
		ir_node *	in[] )

Constructor for memory Phi with keep-alive edge.

new_rd_Phi()

ir_node * new_rd_Phi	(	dbg_info *	dbgi,
		ir_node *	block,
		int	arity,
		ir_node *const *	in,
		ir_mode *	mode )

Construct a Phi 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
mode	mode of the operations result

new_rd_Phi_loop()

ir_node * new_rd_Phi_loop	(	dbg_info *	db,
		ir_node *	block,
		int	arity,
		ir_node *	in[] )

Constructor for memory Phi with keep-alive edge.

set_Phi_loop()

void set_Phi_loop	(	ir_node *	node,
		int	loop )

Sets loop attribute of a Phi node.

set_Phi_next()

void set_Phi_next	(	ir_node *	phi,
		ir_node *	next )

Sets the next link of a block Phi list.

set_Phi_pred()

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

Set the Phi pred with index pos.

Variable Documentation

op_Phi

ir_op* op_Phi

Phi opcode.

Definition at line 3061 of file nodes.h.