1 /* Copyright (C) 1998 - 2000 by Universitaet Karlsruhe
2 ** All rights reserved.
4 ** Authors: Martin Trapp, Christian Schaefer
6 ** declarations of an ir node
15 /** ir node attributes **/
16 /* Block attributes */
18 unsigned long block_visited; /* for the walker that walks over all blocks. */
19 /* Attributes private to construction: */
20 bool matured; /* if set, all in-nodes of the block are fixed */
21 struct ir_node **graph_arr; /* array to store all parameters */
24 /* SymConst attributes */
25 /* This union contains the symbolic information represented by the node */
26 typedef union type_or_id {
38 entity *ent; /* entity to select */
39 linkage_type ltyp; /* linkage type of the entity */
42 /* Alloc attributes */
44 type *type; /* Type of the allocated object. */
45 where_alloc where; /* stack, heap or other managed part of memory */
48 /* Some irnodes just have one attribute, these are stored here,
49 some have more. Their name is 'irnodename_attr' */
51 block_attr block; /* For Block: Fields needed to construct it */
52 struct tarval *con; /* For Const: contains the value of the constant */
53 symconst_attr i; /* For SymConst. */
54 sel_attr s; /* For Sel. */
55 type_method *call; /* For Call: pointer to the type of the method to call */
56 long proj; /* For Proj: contains the result position to project */
57 alloc_attr a; /* For Alloc. */
58 type *f; /* For Free. */
59 int phi0_pos; /* For Phi. Used to remember the value defined by
60 this Phi node. Needed when the Phi is completed
61 to call get_r_internal_value to find the
62 predecessors. If this attribute is set, the Phi
63 node takes the role of the obsolete Phi0 node,
64 therefore the name. */
68 /* common structure of an irnode */
69 /* if the node has some attributes, they are stored in attr */
72 firm_kind kind; /* distinguishes this node from others */
73 ir_op *op; /* Opcode of this node. */
74 ir_mode *mode; /* Mode of this node. */
75 unsigned long visited; /* visited counter for walks of the graph */
76 struct ir_node **in; /* array with predecessors / operands */
77 struct ir_node *link; /* for linking nodes somehow to a list, e.g.
78 used while construction to link Phi0 nodes and
79 during optimization to link to nodes that
80 shall replace a node. */
82 int node_nr; /* a unique node number for each node to make output
85 attr attr; /* attribute of this node. Depends on opcode. */
86 /* Must be last field of struct ir_node. */
89 /* Copies all attributes stored in the old node to the new node.
90 Assumes both have the same opcode and sufficient size. */
92 copy_attrs (ir_node *old, ir_node *new);
95 /* Print IR-Nodes with attributes */
96 /* @@@@ brauchen wir dienoch? dann fliegt ev. das xprint raus?*/
97 int ir_node_print (XP_PAR1, const xprintf_info *, XP_PARN);
100 /** access attributes directly **/
101 inline tarval *get_irn_const_attr (ir_node *node);
102 inline long get_irn_proj_attr (ir_node *node);
103 inline alloc_attr get_irn_alloc_attr (ir_node *node);
104 inline type *get_irn_free_attr (ir_node *node);
105 inline symconst_attr get_irn_symconst_attr (ir_node *node);
106 type_method *get_irn_call_attr (ir_node *node);
107 sel_attr get_irn_sel_attr (ir_node *node);
108 int get_irn_phi_attr (ir_node *node);
109 block_attr get_irn_return_attr (ir_node *node);
111 # endif /* _IRNODE_T_H_ */