1 /* Copyright (C) 2000 by Universitaet Karlsruhe
4 * Authors: Goetz Lindenmaier
6 * irprog.h: ir representation of a program
8 * This file defines a construct that keeps all information about a
10 * - A list of all procedures.
11 * - A list of all types.
12 * - A global type that can be thought of as a god-class containing all
13 * global variables and procedures. This is not the base class of
14 * all classes in a class hierarchy (as, e.g., "object" in java).
15 * - (An obstack containing global things, e.g., the above mentioned lists.)
28 * NAME Datastructure that holds central information about a program
30 * Preliminary documentation ;-)
36 * NAME Datastructure that holds central information about a program
38 * Preliminary documentation ;-)
40 * main_irg The ir graph that is the entry point to the program.
41 * (Anything not reachable from here may be optimized away.
42 * If we want to translate libraries or the like correctly
43 * we must replace this by a list.)
44 * irg List of all ir graphs in the program.
45 * type A list containing all types known to the translated program.
46 * Some types can have several entries in this list (as a result of
47 * using exchange_types()).
48 * glob_type The unique global type that is owner of all global entities.
51 typedef struct ir_prog ir_prog;
53 /* A variable from where everything in the ir can be accessed. */
57 /* initializes ir_prog. Calls the constructor for an ir_prog. */
58 void init_irprog(void);
60 /* Creates a new ir_prog, returns it and sets irp with it.
61 Automatically called by init_firm through init_irprog. */
62 ir_prog *new_ir_prog (void);
64 /* Access the main routine of the compiled program. */
65 ir_graph *get_irp_main_irg();
66 void set_irp_main_irg(ir_graph *main_irg);
68 /* Adds irg to the list of ir graphs in irp. */
69 void add_irp_irg(ir_graph *irg);
70 /* Removes irg from the list of irgs, deallocates it and
71 shrinks the list by one. */
72 void remove_irp_irg(ir_graph *irg);
74 ir_graph *get_irp_irg(int pos);
75 void set_irp_irg(int pos, ir_graph *irg);
77 /* Adds type to the list of types in irp. */
78 void add_irp_type(type *typ);
79 /* Removes type from the list of types, deallocates it and
80 shrinks the list by one. */
81 void remove_irp_type(type *typ);
82 int get_irp_n_types();
83 type *get_irp_type(int pos);
84 void set_irp_type(int pos, type *typ);
86 /** Functions to access the fields of ir_prog **/
87 type *get_glob_type(void);
92 * Returns an irgraph that only contains constant
93 * expressions for constant entities.
94 * Do not use any access function for this graph, do not generate code
95 * for this graph. This graph contains only one block. The constant
96 * expressions may not contain control flow. See also copy_const_code
99 ir_graph *get_const_code_irg();
101 #endif /* ifndef _IRPROG_H_ */