Anchor node

utiliy node used to "hold" nodes in a graph that might possibly not be reachable by other means or which should be reachable immediately without searching through the graph. More...

Functions
int	is_Anchor (const ir_node *node)
	Test if node is a Anchor.
ir_op *	get_op_Anchor (void)
	Returns opcode for Anchor nodes.

Variables
ir_op *	op_Anchor
	Anchor opcode.

Detailed Description

utiliy node used to "hold" nodes in a graph that might possibly not be reachable by other means or which should be reachable immediately without searching through the graph.

Each firm-graph contains exactly one anchor node whose address is always known. All other well-known graph-nodes like Start, End, NoMem, Bad, ... are found by looking at the respective Anchor operand.

Function Documentation

ir_op* get_op_Anchor

(

void

)

Returns opcode for Anchor nodes.

int is_Anchor

(

const ir_node *

node

)

Test if node is a Anchor.

Returns

1 if the node is a Anchor node, 0 otherwise

Variable Documentation

ir_op* op_Anchor

Anchor opcode.

Definition at line 108 of file opcodes.h.