2 * Copyright (C) 1995-2011 University of Karlsruhe. All right reserved.
4 * This file is part of libFirm.
6 * This file may be distributed and/or modified under the terms of the
7 * GNU General Public License version 2 as published by the Free Software
8 * Foundation and appearing in the file LICENSE.GPL included in the
9 * packaging of this file.
11 * Licensees holding valid libFirm Professional Edition licenses may use
12 * this file in accordance with the libFirm Commercial License.
13 * Agreement provided with the Software.
15 * This file is provided AS IS with NO WARRANTY OF ANY KIND, INCLUDING THE
16 * WARRANTY OF DESIGN, MERCHANTABILITY AND FITNESS FOR A PARTICULAR
22 * @brief Entry point to the representation of a whole program.
23 * @author Goetz Lindenmaier, Michael Beck
31 #include "irgraph_t.h"
40 /** The initial name of the irp program. */
41 #define INITAL_PROG_NAME "no_name_set"
44 ir_prog *get_irp(void) { return irp; }
45 void set_irp(ir_prog *new_irp)
51 * Create a new incomplete ir_prog.
53 static ir_prog *new_incomplete_ir_prog(void)
55 ir_prog *res = XMALLOCZ(ir_prog);
57 res->kind = k_ir_prog;
58 res->graphs = NEW_ARR_F(ir_graph *, 0);
59 res->types = NEW_ARR_F(ir_type *, 0);
60 res->global_asms = NEW_ARR_F(ident *, 0);
61 res->last_label_nr = 1; /* 0 is reserved as non-label */
65 res->reserved_resources = IR_RESOURCE_NONE;
72 * Completes an incomplete irprog.
74 * @param irp the (yet incomplete) irp
75 * @param module_name the (module) name for this irp
77 static void complete_ir_prog(ir_prog *irp, const char *module_name)
79 #define IDENT(x) new_id_from_chars(x, sizeof(x) - 1)
81 irp->name = new_id_from_str(module_name);
82 irp->segment_types[IR_SEGMENT_GLOBAL]
83 = new_type_class(IDENT("GlobalType"));
84 irp->segment_types[IR_SEGMENT_THREAD_LOCAL]
85 = new_type_struct(IDENT("ThreadLocal"));
86 irp->segment_types[IR_SEGMENT_CONSTRUCTORS]
87 = new_type_class(IDENT("Constructors"));
88 irp->segment_types[IR_SEGMENT_DESTRUCTORS]
89 = new_type_class(IDENT("Destructors"));
91 /* Set these flags for debugging. */
92 irp->segment_types[IR_SEGMENT_GLOBAL]->flags |= tf_segment|tf_global_type;
93 irp->segment_types[IR_SEGMENT_THREAD_LOCAL]->flags |= tf_segment|tf_tls_type;
94 irp->segment_types[IR_SEGMENT_CONSTRUCTORS]->flags |= tf_segment|tf_constructors;
95 irp->segment_types[IR_SEGMENT_DESTRUCTORS]->flags |= tf_segment|tf_destructors;
97 /* The global type is a class, but we cannot derive from it, so set
98 the final property to assist optimizations that checks for it. */
99 set_class_final(irp->segment_types[IR_SEGMENT_GLOBAL], 1);
101 irp->const_code_irg = new_const_code_irg();
102 irp->phase_state = phase_building;
103 irp->class_cast_state = ir_class_casts_transitive;
104 irp->globals_entity_usage_state = ir_entity_usage_not_computed;
108 void init_irprog_1(void)
110 irp = new_incomplete_ir_prog();
113 void init_irprog_2(void)
115 complete_ir_prog(irp, INITAL_PROG_NAME);
120 ir_prog *new_ir_prog(const char *name)
122 ir_prog *irp = new_incomplete_ir_prog();
123 complete_ir_prog(irp, name);
127 void free_ir_prog(void)
130 /* must iterate backwards here */
131 for (i = get_irp_n_irgs(); i > 0;)
132 free_ir_graph(get_irp_irg(--i));
134 /* free entities first to avoid entity types being destroyed before
135 * the entities using them */
136 for (i = get_irp_n_types(); i > 0;)
137 free_type_entities(get_irp_type(--i));
139 ir_finish_entity(irp);
141 for (i = get_irp_n_types(); i > 0;)
142 free_type(get_irp_type(--i));
144 free_ir_graph(irp->const_code_irg);
148 DEL_ARR_F(irp->graphs);
149 DEL_ARR_F(irp->types);
151 DEL_ARR_F(irp->global_asms);
154 irp->const_code_irg = NULL;
160 ir_graph *get_irp_main_irg(void)
163 return irp->main_irg;
166 void set_irp_main_irg(ir_graph *main_irg)
169 irp->main_irg = main_irg;
172 ir_type *(get_segment_type)(ir_segment_t segment)
174 return get_segment_type_(segment);
177 void set_segment_type(ir_segment_t segment, ir_type *new_type)
179 assert(segment <= IR_SEGMENT_LAST);
180 irp->segment_types[segment] = new_type;
183 ir_type *(get_glob_type)(void)
185 return get_glob_type_();
188 ir_type *(get_tls_type)(void)
190 return get_tls_type_();
193 void add_irp_irg(ir_graph *irg)
196 assert(irp && irp->graphs);
197 ARR_APP1(ir_graph *, irp->graphs, irg);
200 void remove_irp_irg_from_list(ir_graph *irg)
205 l = ARR_LEN(irp->graphs);
206 for (i = 0; i < l; ++i) {
207 if (irp->graphs[i] == irg) {
208 for (; i < l - 1; ++i) {
209 irp->graphs[i] = irp->graphs[i+1];
211 ARR_SETLEN(ir_graph*, irp->graphs, l - 1);
217 void remove_irp_irg(ir_graph *irg)
220 remove_irp_irg_from_list(irg);
223 size_t (get_irp_n_irgs)(void)
225 return get_irp_n_irgs_();
228 ir_graph *(get_irp_irg)(size_t pos)
230 return get_irp_irg_(pos);
233 size_t get_irp_last_idx(void)
235 return irp->max_irg_idx;
238 void set_irp_irg(size_t pos, ir_graph *irg)
241 assert(pos < ARR_LEN(irp->graphs));
242 irp->graphs[pos] = irg;
245 void add_irp_type(ir_type *typ)
249 ARR_APP1(ir_type *, irp->types, typ);
252 void remove_irp_type(ir_type *typ)
257 l = ARR_LEN(irp->types);
258 for (i = 0; i < l; ++i) {
259 if (irp->types[i] == typ) {
260 for (; i < l - 1; ++i) {
261 irp->types[i] = irp->types[i+1];
263 ARR_SETLEN(ir_type *, irp->types, l - 1);
269 size_t (get_irp_n_types) (void)
271 return get_irp_n_types_();
274 ir_type *(get_irp_type) (size_t pos)
276 return get_irp_type_(pos);
279 void set_irp_type(size_t pos, ir_type *typ)
282 assert(pos < ARR_LEN((irp)->types));
283 irp->types[pos] = typ;
286 void set_irp_prog_name(ident *name)
290 int irp_prog_name_is_set(void)
292 return irp->name != new_id_from_str(INITAL_PROG_NAME);
294 ident *get_irp_ident(void)
298 const char *get_irp_name(void)
300 return get_id_str(irp->name);
304 ir_graph *(get_const_code_irg)(void)
306 return get_const_code_irg_();
309 irg_phase_state get_irp_phase_state(void)
311 return irp->phase_state;
314 void set_irp_phase_state(irg_phase_state s)
316 irp->phase_state = s;
319 typedef struct pass_t {
321 irg_phase_state state;
325 * Wrapper for setting the state of a whole ir_prog.
327 static int set_irp_phase_state_wrapper(ir_prog *irp, void *context)
329 pass_t *pass = (pass_t *)context;
330 irg_phase_state state = pass->state;
335 /* set the phase of all graphs */
336 for (i = 0, n = get_irp_n_irgs(); i < n; ++i)
337 set_irg_phase_state(get_irp_irg(i), state);
339 /* set the irp phase */
340 set_irp_phase_state(state);
345 ir_prog_pass_t *set_irp_phase_state_pass(const char *name, irg_phase_state state)
347 struct pass_t *pass = XMALLOCZ(struct pass_t);
349 def_prog_pass_constructor(
350 &pass->pass, name ? name : "set_irp_phase", set_irp_phase_state_wrapper);
354 pass->pass.verify_irprog = ir_prog_no_verify;
355 pass->pass.dump_irprog = ir_prog_no_dump;
360 void set_irp_ip_outedges(ir_node ** ip_outedges)
362 irp->ip_outedges = ip_outedges;
365 ir_node** get_irp_ip_outedges(void)
367 return irp->ip_outedges;
370 irg_callee_info_state get_irp_callee_info_state(void)
372 return irp->callee_info_state;
375 void set_irp_callee_info_state(irg_callee_info_state s)
377 irp->callee_info_state = s;
380 ir_label_t (get_irp_next_label_nr)(void)
382 return get_irp_next_label_nr_();
385 void add_irp_asm(ident *asm_string)
387 ARR_APP1(ident *, irp->global_asms, asm_string);
390 size_t get_irp_n_asms(void)
392 return ARR_LEN(irp->global_asms);
395 ident *get_irp_asm(size_t pos)
397 assert(pos < get_irp_n_asms());
398 return irp->global_asms[pos];
401 int (get_irp_optimization_dumps)(void)
403 return get_irp_optimization_dumps_();
406 void (enable_irp_optimization_dumps)(void)
408 enable_irp_optimization_dumps_();
412 void irp_reserve_resources(ir_prog *irp, irp_resources_t resources)
414 assert((irp->reserved_resources & resources) == 0);
415 irp->reserved_resources |= resources;
418 void irp_free_resources(ir_prog *irp, irp_resources_t resources)
420 assert((irp->reserved_resources & resources) == resources);
421 irp->reserved_resources &= ~resources;
424 irp_resources_t irp_resources_reserved(const ir_prog *irp)
426 return irp->reserved_resources;