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"
39 /** The initial name of the irp program. */
40 #define INITAL_PROG_NAME "no_name_set"
43 ir_prog *get_irp(void) { return irp; }
44 void set_irp(ir_prog *new_irp)
50 * Create a new incomplete ir_prog.
52 static ir_prog *new_incomplete_ir_prog(void)
54 ir_prog *res = XMALLOCZ(ir_prog);
56 res->kind = k_ir_prog;
57 res->graphs = NEW_ARR_F(ir_graph *, 0);
58 res->types = NEW_ARR_F(ir_type *, 0);
59 res->modes = NEW_ARR_F(ir_mode *, 0);
60 res->opcodes = NEW_ARR_F(ir_op *, 0);
61 res->global_asms = NEW_ARR_F(ident *, 0);
62 res->last_region_nr = 0;
63 res->last_label_nr = 1; /* 0 is reserved as non-label */
67 res->reserved_resources = IR_RESOURCE_NONE;
74 * Completes an incomplete irprog.
76 * @param irp the (yet incomplete) irp
77 * @param module_name the (module) name for this irp
79 static ir_prog *complete_ir_prog(ir_prog *irp, const char *module_name)
81 #define IDENT(x) new_id_from_chars(x, sizeof(x) - 1)
83 irp->name = new_id_from_str(module_name);
84 irp->segment_types[IR_SEGMENT_GLOBAL]
85 = new_type_class(IDENT("GlobalType"));
86 irp->segment_types[IR_SEGMENT_THREAD_LOCAL]
87 = new_type_struct(IDENT("ThreadLocal"));
88 irp->segment_types[IR_SEGMENT_CONSTRUCTORS]
89 = new_type_class(IDENT("Constructors"));
90 irp->segment_types[IR_SEGMENT_DESTRUCTORS]
91 = new_type_class(IDENT("Destructors"));
93 /* Set these flags for debugging. */
94 irp->segment_types[IR_SEGMENT_GLOBAL]->flags |= tf_segment|tf_global_type;
95 irp->segment_types[IR_SEGMENT_THREAD_LOCAL]->flags |= tf_segment|tf_tls_type;
96 irp->segment_types[IR_SEGMENT_CONSTRUCTORS]->flags |= tf_segment|tf_constructors;
97 irp->segment_types[IR_SEGMENT_DESTRUCTORS]->flags |= tf_segment|tf_destructors;
99 /* The global type is a class, but we cannot derive from it, so set
100 the final property to assist optimizations that checks for it. */
101 set_class_final(irp->segment_types[IR_SEGMENT_GLOBAL], 1);
103 irp->const_code_irg = new_const_code_irg();
104 irp->phase_state = phase_building;
105 irp->class_cast_state = ir_class_casts_transitive;
106 irp->globals_entity_usage_state = ir_entity_usage_not_computed;
108 current_ir_graph = irp->const_code_irg;
114 void init_irprog_1(void)
116 irp = new_incomplete_ir_prog();
119 void init_irprog_2(void)
121 (void)complete_ir_prog(irp, INITAL_PROG_NAME);
124 ir_prog *new_ir_prog(const char *name)
126 return complete_ir_prog(new_incomplete_ir_prog(), name);
129 void free_ir_prog(void)
132 /* must iterate backwards here */
133 for (i = get_irp_n_irgs(); i > 0;)
134 free_ir_graph(get_irp_irg(--i));
136 free_type_entities(get_glob_type());
137 /* must iterate backwards here */
138 for (i = get_irp_n_types(); i > 0;)
139 free_type_entities(get_irp_type(--i));
141 for (i = get_irp_n_types(); i > 0;)
142 free_type(get_irp_type(--i));
144 free_ir_graph(irp->const_code_irg);
145 DEL_ARR_F(irp->graphs);
146 DEL_ARR_F(irp->types);
147 DEL_ARR_F(irp->modes);
150 DEL_ARR_F(irp->opcodes);
151 DEL_ARR_F(irp->global_asms);
154 irp->const_code_irg = NULL;
158 ir_graph *get_irp_main_irg(void)
161 return irp->main_irg;
164 void set_irp_main_irg(ir_graph *main_irg)
167 irp->main_irg = main_irg;
170 ir_type *(get_segment_type)(ir_segment_t segment)
172 return get_segment_type_(segment);
175 void set_segment_type(ir_segment_t segment, ir_type *new_type)
177 assert(segment <= IR_SEGMENT_LAST);
178 irp->segment_types[segment] = new_type;
181 ir_type *(get_glob_type)(void)
183 return get_glob_type_();
186 ir_type *(get_tls_type)(void)
188 return get_tls_type_();
191 void add_irp_irg(ir_graph *irg)
194 assert(irp && irp->graphs);
195 ARR_APP1(ir_graph *, irp->graphs, irg);
198 void remove_irp_irg_from_list(ir_graph *irg)
203 l = ARR_LEN(irp->graphs);
204 for (i = 0; i < l; ++i) {
205 if (irp->graphs[i] == irg) {
206 for (; i < l - 1; ++i) {
207 irp->graphs[i] = irp->graphs[i+1];
209 ARR_SETLEN(ir_graph*, irp->graphs, l - 1);
215 void remove_irp_irg(ir_graph *irg)
218 remove_irp_irg_from_list(irg);
221 size_t (get_irp_n_irgs)(void)
223 return get_irp_n_irgs_();
226 ir_graph *(get_irp_irg)(size_t pos)
228 return get_irp_irg_(pos);
231 size_t get_irp_last_idx(void)
233 return irp->max_irg_idx;
236 void set_irp_irg(size_t pos, ir_graph *irg)
239 assert(pos < ARR_LEN(irp->graphs));
240 irp->graphs[pos] = irg;
243 void add_irp_type(ir_type *typ)
247 ARR_APP1(ir_type *, irp->types, typ);
250 void remove_irp_type(ir_type *typ)
255 l = ARR_LEN(irp->types);
256 for (i = 0; i < l; ++i) {
257 if (irp->types[i] == typ) {
258 for (; i < l - 1; ++i) {
259 irp->types[i] = irp->types[i+1];
261 ARR_SETLEN(ir_type *, irp->types, l - 1);
267 size_t (get_irp_n_types) (void)
269 return get_irp_n_types_();
272 ir_type *(get_irp_type) (size_t pos)
274 return get_irp_type_(pos);
277 void set_irp_type(size_t pos, ir_type *typ)
280 assert(pos < ARR_LEN((irp)->types));
281 irp->types[pos] = typ;
284 size_t (get_irp_n_modes)(void)
286 return get_irp_n_modes_();
289 ir_mode *(get_irp_mode)(size_t pos)
291 return get_irp_mode_(pos);
294 void add_irp_mode(ir_mode *mode)
296 assert(mode != NULL);
298 ARR_APP1(ir_mode *, irp->modes, mode);
301 void add_irp_opcode(ir_op *opcode)
305 assert(opcode != NULL);
307 len = ARR_LEN(irp->opcodes);
310 ARR_RESIZE(ir_op*, irp->opcodes, code+1);
311 memset(&irp->opcodes[len], 0, (code-len+1) * sizeof(irp->opcodes[0]));
314 assert(irp->opcodes[code] == NULL && "opcode registered twice");
315 irp->opcodes[code] = opcode;
318 void remove_irp_opcode(ir_op *opcode)
320 assert(opcode->code < ARR_LEN(irp->opcodes));
321 irp->opcodes[opcode->code] = NULL;
324 size_t (get_irp_n_opcodes)(void)
326 return get_irp_n_opcodes_();
329 ir_op *(get_irp_opcode)(size_t pos)
331 return get_irp_opcode_(pos);
334 void clear_irp_opcodes_generic_func(void)
338 for (i = 0, n = get_irp_n_opcodes(); i < n; ++i) {
339 ir_op *op = get_irp_opcode(i);
340 op->ops.generic = (op_func)NULL;
344 void set_irp_prog_name(ident *name)
348 int irp_prog_name_is_set(void)
350 return irp->name != new_id_from_str(INITAL_PROG_NAME);
352 ident *get_irp_ident(void)
356 const char *get_irp_name(void)
358 return get_id_str(irp->name);
362 ir_graph *(get_const_code_irg)(void)
364 return get_const_code_irg_();
367 irg_phase_state get_irp_phase_state(void)
369 return irp->phase_state;
372 void set_irp_phase_state(irg_phase_state s)
374 irp->phase_state = s;
377 typedef struct pass_t {
379 irg_phase_state state;
383 * Wrapper for setting the state of a whole ir_prog.
385 static int set_irp_phase_state_wrapper(ir_prog *irp, void *context)
387 pass_t *pass = (pass_t *)context;
388 irg_phase_state state = pass->state;
393 /* set the phase of all graphs */
394 for (i = 0, n = get_irp_n_irgs(); i < n; ++i)
395 set_irg_phase_state(get_irp_irg(i), state);
397 /* set the irp phase */
398 set_irp_phase_state(state);
403 ir_prog_pass_t *set_irp_phase_state_pass(const char *name, irg_phase_state state)
405 struct pass_t *pass = XMALLOCZ(struct pass_t);
407 def_prog_pass_constructor(
408 &pass->pass, name ? name : "set_irp_phase", set_irp_phase_state_wrapper);
412 pass->pass.verify_irprog = ir_prog_no_verify;
413 pass->pass.dump_irprog = ir_prog_no_dump;
418 void set_irp_ip_outedges(ir_node ** ip_outedges)
420 irp->ip_outedges = ip_outedges;
423 ir_node** get_irp_ip_outedges(void)
425 return irp->ip_outedges;
428 irg_callee_info_state get_irp_callee_info_state(void)
430 return irp->callee_info_state;
433 void set_irp_callee_info_state(irg_callee_info_state s)
435 irp->callee_info_state = s;
438 ir_label_t (get_irp_next_label_nr)(void)
440 return get_irp_next_label_nr_();
443 void add_irp_asm(ident *asm_string)
445 ARR_APP1(ident *, irp->global_asms, asm_string);
448 size_t get_irp_n_asms(void)
450 return ARR_LEN(irp->global_asms);
453 ident *get_irp_asm(size_t pos)
455 assert(pos < get_irp_n_asms());
456 return irp->global_asms[pos];
459 int (get_irp_optimization_dumps)(void)
461 return get_irp_optimization_dumps_();
464 void (enable_irp_optimization_dumps)(void)
466 enable_irp_optimization_dumps_();
470 void irp_reserve_resources(ir_prog *irp, irp_resources_t resources)
472 assert((irp->reserved_resources & resources) == 0);
473 irp->reserved_resources |= resources;
476 void irp_free_resources(ir_prog *irp, irp_resources_t resources)
478 assert((irp->reserved_resources & resources) == resources);
479 irp->reserved_resources &= ~resources;
482 irp_resources_t irp_resources_reserved(const ir_prog *irp)
484 return irp->reserved_resources;