End node

Last node of a graph. More...

Functions
int	get_End_n_keepalives (const ir_node *end)
	Returns the number of Keep alive node.
ir_node *	get_End_keepalive (const ir_node *end, int pos)
	Returns the Keep alive node a position pos.
void	add_End_keepalive (ir_node *end, ir_node *ka)
	Keep alive dedicated nodes.
void	set_End_keepalive (ir_node *end, int pos, ir_node *ka)
	Sets the Keep alive node at position pos.
void	set_End_keepalives (ir_node *end, int n, ir_node *in[])
	Sets new keep-alives.
void	remove_End_keepalive (ir_node *end, ir_node *irn)
	Removes irn from the keep-alive set.
void	remove_End_Bads_and_doublets (ir_node *end)
	Removes Bads, NoMem and doublets from the keep-alive set.
void	free_End (ir_node *end)
	Some parts of the End node are allocated separately – their memory is not recovered by dead_node_elimination if a End node is dead.
ir_node *	new_rd_End (dbg_info *dbgi, ir_graph *irg, int arity, ir_node *const *in)
	Construct an End node.
ir_node *	new_r_End (ir_graph *irg, int arity, ir_node *const *in)
	Construct an End node.
ir_node *	new_d_End (dbg_info *dbgi, int arity, ir_node *const *in)
	Construct an End node.
ir_node *	new_End (int arity, ir_node *const *in)
	Construct an End node.
int	is_End (const ir_node *node)
	Test if node is a End.
ir_op *	get_op_End (void)
	Returns opcode for End nodes.

Variables
ir_op *	op_End
	End opcode.

Detailed Description

Last node of a graph.

It references nodes in endless loops (so called keepalive edges)

Function Documentation

void add_End_keepalive	(	ir_node *	end,
		ir_node *	ka
	)

Keep alive dedicated nodes.

These must be either PhiM or Block nodes.

void free_End

(

ir_node *

end

)

Some parts of the End node are allocated separately – their memory is not recovered by dead_node_elimination if a End node is dead.

free_End() frees these data structures.

ir_node* get_End_keepalive	(	const ir_node *	end,
		int	pos
	)

Returns the Keep alive node a position pos.

int get_End_n_keepalives

(

const ir_node *

end

)

Returns the number of Keep alive node.

ir_op* get_op_End

(

void

)

Returns opcode for End nodes.

int is_End

(

const ir_node *

node

)

Test if node is a End.

Returns

1 if the node is a End node, 0 otherwise

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

Construct an End node.

Parameters

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

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

Construct an End node.

Parameters

arity	size of additional inputs array
in	additional inputs

ir_node* new_r_End	(	ir_graph *	irg,
		int	arity,
		ir_node *const *	in
	)

Construct an End node.

Parameters

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

ir_node* new_rd_End	(	dbg_info *	dbgi,
		ir_graph *	irg,
		int	arity,
		ir_node *const *	in
	)

Construct an End node.

Parameters

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

void remove_End_Bads_and_doublets

(

ir_node *

end

)

Removes Bads, NoMem and doublets from the keep-alive set.

void remove_End_keepalive	(	ir_node *	end,
		ir_node *	irn
	)

Removes irn from the keep-alive set.

void set_End_keepalive	(	ir_node *	end,
		int	pos,
		ir_node *	ka
	)

Sets the Keep alive node at position pos.

void set_End_keepalives	(	ir_node *	end,
		int	n,
		ir_node *	in[]
	)

Sets new keep-alives.

Beware: This might be an expensive operation if dynamic edges are enabled, so avoid it in the backend.

Variable Documentation

ir_op* op_End

End opcode.

Definition at line 203 of file opcodes.h.