A basic block. More...

Functions
ir_node *	get_nodes_block (const ir_node *node)
	Returns the block the node belongs to.
void	set_nodes_block (ir_node node, ir_node block)
	Sets the Block of a node.
int	get_Block_n_cfgpreds (const ir_node *block)
	Returns the number of control flow predecessors of a block.
ir_node *	get_Block_cfgpred (const ir_node *block, int pos)
	Returns the control flow predecessor of a block at a given position.
void	set_Block_cfgpred (ir_node block, int pos, ir_node pred)
	Sets the control flow predecessor of a block at a given position.
int	get_Block_cfgpred_pos (const ir_node block, const ir_node pred)
	Returns the position of the predecessor block pred in the inputs of the block block.
ir_node *	get_Block_cfgpred_block (const ir_node *node, int pos)
	Returns the predecessor block.
int	get_Block_matured (const ir_node *block)
	Returns the matured flag of a block.
void	set_Block_matured (ir_node *block, int matured)
	set the matured flag of a block.
ir_visited_t	get_Block_block_visited (const ir_node *block)
	A visited flag only for block nodes.
void	set_Block_block_visited (ir_node *block, ir_visited_t visit)
	set block visited flag
void	mark_Block_block_visited (ir_node *node)
	Marks a block as visited by setting its visited counter.
int	Block_block_visited (const ir_node *node)
	Returns 1 if a block is marked as visited.
ir_extblk *	get_Block_extbb (const ir_node *block)
	Returns the extended basic block a block belongs to.
void	set_Block_extbb (ir_node block, ir_extblk extblk)
	Sets the extended basic block a block belongs to.
ir_graph *	get_Block_irg (const ir_node *block)
	Returns the ir_graph this Block belongs to.
ir_entity *	create_Block_entity (ir_node *block)
	Returns the entity for a Block (creating it if necessary)
ir_node *	get_Block_phis (const ir_node *block)
	Returns the head of the Phi list for this block.
void	set_Block_phis (ir_node block, ir_node phi)
	Sets the head of the Phi list for this block.
void	add_Block_phi (ir_node block, ir_node phi)
	Add a Phi node to the list of Block Phi's.
unsigned	get_Block_mark (const ir_node *block)
	Returns the Block mark (single bit).
void	set_Block_mark (ir_node *block, unsigned mark)
	Sets the Block mark (single bit).
ir_node *	new_rd_Block (dbg_info dbgi, ir_graph irg, int arity, ir_node const in)
	Construct a Block node.
ir_node *	new_r_Block (ir_graph irg, int arity, ir_node const *in)
	Construct a Block node.
ir_node *	new_d_Block (dbg_info dbgi, int arity, ir_node const *in)
	Construct a Block node.
ir_node *	new_Block (int arity, ir_node const in)
	Construct a Block node.
int	is_Block (const ir_node *node)
	Test if node is a Block.
ir_entity *	get_Block_entity (const ir_node *node)
	Returns entity attribute of a Block node.
void	set_Block_entity (ir_node node, ir_entity entity)
	Sets entity attribute of a Block node.
ir_op *	get_op_Block (void)
	Returns opcode for Block nodes.
Variables
ir_op *	op_Block
	Block opcode.

Detailed Description

A basic block.

Function Documentation

void add_Block_phi	(	ir_node *	block,
		ir_node *	phi
	)

Add a Phi node to the list of Block Phi's.

int Block_block_visited ( const ir_node * node )

Returns 1 if a block is marked as visited.

ir_entity* create_Block_entity ( ir_node * block )

Returns the entity for a Block (creating it if necessary)

ir_visited_t get_Block_block_visited ( const ir_node * block )

A visited flag only for block nodes.

See also:: also: get_irn_visited() inc_irg_visited() inc_irg_block_visited()

ir_node* get_Block_cfgpred	(	const ir_node *	block,
		int	pos
	)

Returns the control flow predecessor of a block at a given position.

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

Returns the predecessor block.

Returns the block corresponding to the predecessor pos of block.

There are several ambiguities we resolve with this function:

The direct predecessor can be a Proj, which is not pinned. We walk from the predecessor to the next pinned node (skip_Proj) and return the block that node is in.
If we encounter the Bad node, this function does not return Start block, but the Bad node.

int get_Block_cfgpred_pos	(	const ir_node *	block,
		const ir_node *	pred
	)

Returns the position of the predecessor block pred in the inputs of the block block.

Parameters:

block	the block
pred	a predecessor block of block

Returns:: the position of pred in block or -1

Note:: When using the old extended basic block form for blocks with exception exists, a predecessor block might have more than one position. In that case it is not specified, with is returned.

ir_entity* get_Block_entity ( const ir_node * node )

Returns entity attribute of a Block node.

ir_extblk* get_Block_extbb ( const ir_node * block )

Returns the extended basic block a block belongs to.

ir_graph* get_Block_irg ( const ir_node * block )

Returns the ir_graph this Block belongs to.

unsigned get_Block_mark ( const ir_node * block )

Returns the Block mark (single bit).

int get_Block_matured ( const ir_node * block )

Returns the matured flag of a block.

int get_Block_n_cfgpreds ( const ir_node * block )

Returns the number of control flow predecessors of a block.

ir_node* get_Block_phis ( const ir_node * block )

Returns the head of the Phi list for this block.

ir_node* get_nodes_block ( const ir_node * node )

Returns the block the node belongs to.

This is only possible for pinned nodes or if the graph is in pinned state. Otherwise the block may be incorrect. This condition is now checked by an assertion.

This works for all except Block. It can return Blocks or the Bad node.

To express the difference to access routines that work for all nodes we use infix "nodes" and do not name this function get_irn_block().

ir_op* get_op_Block ( void )

Returns opcode for Block nodes.

int is_Block ( const ir_node * node )

Test if node is a Block.

Returns:: 1 if the node is a Block node, 0 otherwise

void mark_Block_block_visited ( ir_node * node )

Marks a block as visited by setting its visited counter.

ir_node* new_Block	(	int	arity,
		ir_node const	in
	)

Construct a Block node.

Parameters:

arity	size of additional inputs array
in	additional inputs

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

Construct a Block node.

Parameters:

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

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

Construct a Block node.

Parameters:

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

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

Construct a Block 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 set_Block_block_visited	(	ir_node *	block,
		ir_visited_t	visit
	)

set block visited flag

void set_Block_cfgpred	(	ir_node *	block,
		int	pos,
		ir_node *	pred
	)

Sets the control flow predecessor of a block at a given position.

void set_Block_entity	(	ir_node *	node,
		ir_entity *	entity
	)

Sets entity attribute of a Block node.

void set_Block_extbb	(	ir_node *	block,
		ir_extblk *	extblk
	)

Sets the extended basic block a block belongs to.

void set_Block_mark	(	ir_node *	block,
		unsigned	mark
	)

Sets the Block mark (single bit).

void set_Block_matured	(	ir_node *	block,
		int	matured
	)

set the matured flag of a block.

void set_Block_phis	(	ir_node *	block,
		ir_node *	phi
	)

Sets the head of the Phi list for this block.

void set_nodes_block	(	ir_node *	node,
		ir_node *	block
	)

Sets the Block of a node.

Variable Documentation

ir_op* op_Block

Block opcode.

Definition at line 124 of file opcodes.h.

Functions

Variables

Detailed Description

Function Documentation

Variable Documentation