Dummy node

A placeholder value. More...

Functions
ir_node *	new_rd_Dummy (dbg_info *dbgi, ir_graph *irg, ir_mode *mode)
	Construct a Dummy node. More...
ir_node *	new_r_Dummy (ir_graph *irg, ir_mode *mode)
	Construct a Dummy node. More...
ir_node *	new_d_Dummy (dbg_info *dbgi, ir_mode *mode)
	Construct a Dummy node. More...
ir_node *	new_Dummy (ir_mode *mode)
	Construct a Dummy node. More...
int	is_Dummy (const ir_node *node)
	Test if node is a Dummy. More...
ir_op *	get_op_Dummy (void)
	Returns opcode for Dummy nodes. More...

Variables
ir_op *	op_Dummy
	Dummy opcode. More...

Detailed Description

A placeholder value.

This is used when constructing cyclic graphs where you have cases where not all predecessors of a phi-node are known. Dummy nodes are used for the unknown predecessors and replaced later.

Function Documentation

ir_op* get_op_Dummy

(

void

)

Returns opcode for Dummy nodes.

Definition at line 1120 of file gen_irnode.c.

References op_Dummy.

int is_Dummy

(

const ir_node *

node

)

Test if node is a Dummy.

Returns

1 if the node is a Dummy node, 0 otherwise

Definition at line 3190 of file gen_irnode.c.

ir_node* new_d_Dummy	(	dbg_info *	dbgi,
		ir_mode *	mode
	)

Construct a Dummy node.

Parameters

dbgi	A pointer to debug information.
mode	mode of the operations result

Definition at line 1108 of file gen_irnode.c.

References current_ir_graph, IR_GRAPH_CONSTRAINT_CONSTRUCTION, irg_is_constrained(), and new_rd_Dummy().

Referenced by new_Dummy().

ir_node* new_Dummy

(

ir_mode *

mode

)

Construct a Dummy node.

Parameters

mode	mode of the operations result

Definition at line 1115 of file gen_irnode.c.

References new_d_Dummy(), and op_Dummy.

ir_node* new_r_Dummy	(	ir_graph *	irg,
		ir_mode *	mode
	)

Construct a Dummy node.

Parameters

irg	The IR graph the node belongs to.
mode	mode of the operations result

Definition at line 1103 of file gen_irnode.c.

References new_rd_Dummy().

ir_node* new_rd_Dummy	(	dbg_info *	dbgi,
		ir_graph *	irg,
		ir_mode *	mode
	)

Construct a Dummy node.

Parameters

dbgi	A pointer to debug information.
irg	The IR graph the node belongs to.
mode	mode of the operations result

Definition at line 1090 of file gen_irnode.c.

References get_irg_start_block(), new_ir_node(), op_Dummy, optimize_node(), and verify_new_node().

Referenced by new_d_Dummy(), and new_r_Dummy().

Variable Documentation

ir_op* op_Dummy

Dummy opcode.

Definition at line 1693 of file nodes.h.

Referenced by get_op_Dummy(), new_Dummy(), new_rd_Dummy(), and set_typeconst_type().