2 * This file is part of libFirm.
3 * Copyright (C) 2012 University of Karlsruhe.
8 * @brief Entry point to the representation of a whole program.
9 * @author Goetz Lindenmaier, Michael Beck
17 #include "irgraph_t.h"
26 /** The initial name of the irp program. */
27 #define INITAL_PROG_NAME "no_name_set"
30 ir_prog *get_irp(void) { return irp; }
31 void set_irp(ir_prog *new_irp)
37 * Create a new incomplete ir_prog.
39 static ir_prog *new_incomplete_ir_prog(void)
41 ir_prog *res = XMALLOCZ(ir_prog);
43 res->kind = k_ir_prog;
44 res->graphs = NEW_ARR_F(ir_graph *, 0);
45 res->types = NEW_ARR_F(ir_type *, 0);
46 res->global_asms = NEW_ARR_F(ident *, 0);
47 res->last_label_nr = 1; /* 0 is reserved as non-label */
51 res->reserved_resources = IRP_RESOURCE_NONE;
58 * Completes an incomplete irprog.
60 * @param irp the (yet incomplete) irp
61 * @param module_name the (module) name for this irp
63 static void complete_ir_prog(ir_prog *irp, const char *module_name)
65 #define IDENT(x) new_id_from_chars(x, sizeof(x) - 1)
67 irp->name = new_id_from_str(module_name);
68 irp->segment_types[IR_SEGMENT_GLOBAL] = new_type_segment(IDENT("GlobalType"), tf_global_type);
69 irp->segment_types[IR_SEGMENT_THREAD_LOCAL] = new_type_segment(IDENT("ThreadLocal"), tf_tls_type);
70 irp->segment_types[IR_SEGMENT_CONSTRUCTORS] = new_type_segment(IDENT("Constructors"), tf_constructors);
71 irp->segment_types[IR_SEGMENT_DESTRUCTORS] = new_type_segment(IDENT("Destructors"), tf_destructors);
73 /* The global type is a class, but we cannot derive from it, so set
74 the final property to assist optimizations that checks for it. */
75 set_class_final(irp->segment_types[IR_SEGMENT_GLOBAL], 1);
77 irp->const_code_irg = new_const_code_irg();
78 irp->globals_entity_usage_state = ir_entity_usage_not_computed;
82 void init_irprog_1(void)
84 irp = new_incomplete_ir_prog();
87 void init_irprog_2(void)
89 complete_ir_prog(irp, INITAL_PROG_NAME);
94 ir_prog *new_ir_prog(const char *name)
96 ir_prog *irp = new_incomplete_ir_prog();
97 complete_ir_prog(irp, name);
101 void free_ir_prog(void)
107 /* must iterate backwards here */
108 for (i = get_irp_n_irgs(); i > 0;)
109 free_ir_graph(get_irp_irg(--i));
111 /* free entities first to avoid entity types being destroyed before
112 * the entities using them */
113 for (i = get_irp_n_types(); i > 0;)
114 free_type_entities(get_irp_type(--i));
116 ir_finish_entity(irp);
118 for (i = get_irp_n_types(); i > 0;)
119 free_type(get_irp_type(--i));
121 free_ir_graph(irp->const_code_irg);
125 DEL_ARR_F(irp->graphs);
126 DEL_ARR_F(irp->types);
128 DEL_ARR_F(irp->global_asms);
131 irp->const_code_irg = NULL;
137 ir_graph *get_irp_main_irg(void)
140 return irp->main_irg;
143 void set_irp_main_irg(ir_graph *main_irg)
146 irp->main_irg = main_irg;
149 ir_type *(get_segment_type)(ir_segment_t segment)
151 return get_segment_type_(segment);
154 void set_segment_type(ir_segment_t segment, ir_type *new_type)
156 assert(segment <= IR_SEGMENT_LAST);
157 irp->segment_types[segment] = new_type;
160 ir_type *(get_glob_type)(void)
162 return get_glob_type_();
165 ir_type *(get_tls_type)(void)
167 return get_tls_type_();
170 void add_irp_irg(ir_graph *irg)
173 assert(irp && irp->graphs);
174 ARR_APP1(ir_graph *, irp->graphs, irg);
177 void remove_irp_irg(ir_graph *irg)
182 l = ARR_LEN(irp->graphs);
183 for (i = 0; i < l; ++i) {
184 if (irp->graphs[i] == irg) {
185 for (; i < l - 1; ++i) {
186 irp->graphs[i] = irp->graphs[i+1];
188 ARR_SETLEN(ir_graph*, irp->graphs, l - 1);
194 size_t (get_irp_n_irgs)(void)
196 return get_irp_n_irgs_();
199 ir_graph *(get_irp_irg)(size_t pos)
201 return get_irp_irg_(pos);
204 size_t get_irp_last_idx(void)
206 return irp->max_irg_idx;
209 void set_irp_irg(size_t pos, ir_graph *irg)
212 assert(pos < ARR_LEN(irp->graphs));
213 irp->graphs[pos] = irg;
216 void add_irp_type(ir_type *typ)
220 ARR_APP1(ir_type *, irp->types, typ);
223 void remove_irp_type(ir_type *typ)
228 l = ARR_LEN(irp->types);
229 for (i = 0; i < l; ++i) {
230 if (irp->types[i] == typ) {
231 for (; i < l - 1; ++i) {
232 irp->types[i] = irp->types[i+1];
234 ARR_SETLEN(ir_type *, irp->types, l - 1);
240 size_t (get_irp_n_types) (void)
242 return get_irp_n_types_();
245 ir_type *(get_irp_type) (size_t pos)
247 return get_irp_type_(pos);
250 void set_irp_type(size_t pos, ir_type *typ)
253 assert(pos < ARR_LEN((irp)->types));
254 irp->types[pos] = typ;
257 void set_irp_prog_name(ident *name)
261 int irp_prog_name_is_set(void)
263 return irp->name != new_id_from_str(INITAL_PROG_NAME);
265 ident *get_irp_ident(void)
269 const char *get_irp_name(void)
271 return get_id_str(irp->name);
275 ir_graph *(get_const_code_irg)(void)
277 return get_const_code_irg_();
280 void set_irp_ip_outedges(ir_node ** ip_outedges)
282 irp->ip_outedges = ip_outedges;
285 ir_node** get_irp_ip_outedges(void)
287 return irp->ip_outedges;
290 irg_callee_info_state get_irp_callee_info_state(void)
292 return irp->callee_info_state;
295 void set_irp_callee_info_state(irg_callee_info_state s)
297 irp->callee_info_state = s;
300 ir_label_t (get_irp_next_label_nr)(void)
302 return get_irp_next_label_nr_();
305 void add_irp_asm(ident *asm_string)
307 ARR_APP1(ident *, irp->global_asms, asm_string);
310 size_t get_irp_n_asms(void)
312 return ARR_LEN(irp->global_asms);
315 ident *get_irp_asm(size_t pos)
317 assert(pos < get_irp_n_asms());
318 return irp->global_asms[pos];
322 void irp_reserve_resources(ir_prog *irp, irp_resources_t resources)
324 assert((irp->reserved_resources & resources) == 0);
325 irp->reserved_resources |= resources;
328 void irp_free_resources(ir_prog *irp, irp_resources_t resources)
330 assert((irp->reserved_resources & resources) == resources);
331 irp->reserved_resources &= ~resources;
334 irp_resources_t irp_resources_reserved(const ir_prog *irp)
336 return irp->reserved_resources;