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->modes = NEW_ARR_F(ir_mode *, 0);
61 res->opcodes = NEW_ARR_F(ir_op *, 0);
62 res->global_asms = NEW_ARR_F(ident *, 0);
63 res->last_region_nr = 0;
64 res->last_label_nr = 1; /* 0 is reserved as non-label */
68 res->reserved_resources = IR_RESOURCE_NONE;
75 * Completes an incomplete irprog.
77 * @param irp the (yet incomplete) irp
78 * @param module_name the (module) name for this irp
80 static ir_prog *complete_ir_prog(ir_prog *irp, const char *module_name)
82 #define IDENT(x) new_id_from_chars(x, sizeof(x) - 1)
84 irp->name = new_id_from_str(module_name);
85 irp->segment_types[IR_SEGMENT_GLOBAL]
86 = new_type_class(IDENT("GlobalType"));
87 irp->segment_types[IR_SEGMENT_THREAD_LOCAL]
88 = new_type_struct(IDENT("ThreadLocal"));
89 irp->segment_types[IR_SEGMENT_CONSTRUCTORS]
90 = new_type_class(IDENT("Constructors"));
91 irp->segment_types[IR_SEGMENT_DESTRUCTORS]
92 = new_type_class(IDENT("Destructors"));
94 /* Set these flags for debugging. */
95 irp->segment_types[IR_SEGMENT_GLOBAL]->flags |= tf_segment|tf_global_type;
96 irp->segment_types[IR_SEGMENT_THREAD_LOCAL]->flags |= tf_segment|tf_tls_type;
97 irp->segment_types[IR_SEGMENT_CONSTRUCTORS]->flags |= tf_segment|tf_constructors;
98 irp->segment_types[IR_SEGMENT_DESTRUCTORS]->flags |= tf_segment|tf_destructors;
100 /* The global type is a class, but we cannot derive from it, so set
101 the final property to assist optimizations that checks for it. */
102 set_class_final(irp->segment_types[IR_SEGMENT_GLOBAL], 1);
104 irp->const_code_irg = new_const_code_irg();
105 irp->phase_state = phase_building;
106 irp->class_cast_state = ir_class_casts_transitive;
107 irp->globals_entity_usage_state = ir_entity_usage_not_computed;
109 current_ir_graph = irp->const_code_irg;
115 void init_irprog_1(void)
117 irp = new_incomplete_ir_prog();
120 void init_irprog_2(void)
122 (void)complete_ir_prog(irp, INITAL_PROG_NAME);
125 ir_prog *new_ir_prog(const char *name)
127 return complete_ir_prog(new_incomplete_ir_prog(), name);
130 void free_ir_prog(void)
133 /* must iterate backwards here */
134 for (i = get_irp_n_irgs(); i > 0;)
135 free_ir_graph(get_irp_irg(--i));
137 free_type_entities(get_glob_type());
138 /* must iterate backwards here */
139 for (i = get_irp_n_types(); i > 0;)
140 free_type_entities(get_irp_type(--i));
142 for (i = get_irp_n_types(); i > 0;)
143 free_type(get_irp_type(--i));
145 free_ir_graph(irp->const_code_irg);
146 DEL_ARR_F(irp->graphs);
147 DEL_ARR_F(irp->types);
148 DEL_ARR_F(irp->modes);
151 DEL_ARR_F(irp->opcodes);
152 DEL_ARR_F(irp->global_asms);
155 irp->const_code_irg = NULL;
159 ir_graph *get_irp_main_irg(void)
162 return irp->main_irg;
165 void set_irp_main_irg(ir_graph *main_irg)
168 irp->main_irg = main_irg;
171 ir_type *(get_segment_type)(ir_segment_t segment)
173 return get_segment_type_(segment);
176 void set_segment_type(ir_segment_t segment, ir_type *new_type)
178 assert(segment <= IR_SEGMENT_LAST);
179 irp->segment_types[segment] = new_type;
182 ir_type *(get_glob_type)(void)
184 return get_glob_type_();
187 ir_type *(get_tls_type)(void)
189 return get_tls_type_();
192 void add_irp_irg(ir_graph *irg)
195 assert(irp && irp->graphs);
196 ARR_APP1(ir_graph *, irp->graphs, irg);
199 void remove_irp_irg_from_list(ir_graph *irg)
204 l = ARR_LEN(irp->graphs);
205 for (i = 0; i < l; ++i) {
206 if (irp->graphs[i] == irg) {
207 for (; i < l - 1; ++i) {
208 irp->graphs[i] = irp->graphs[i+1];
210 ARR_SETLEN(ir_graph*, irp->graphs, l - 1);
216 void remove_irp_irg(ir_graph *irg)
219 remove_irp_irg_from_list(irg);
222 size_t (get_irp_n_irgs)(void)
224 return get_irp_n_irgs_();
227 ir_graph *(get_irp_irg)(size_t pos)
229 return get_irp_irg_(pos);
232 size_t get_irp_last_idx(void)
234 return irp->max_irg_idx;
237 void set_irp_irg(size_t pos, ir_graph *irg)
240 assert(pos < ARR_LEN(irp->graphs));
241 irp->graphs[pos] = irg;
244 void add_irp_type(ir_type *typ)
248 ARR_APP1(ir_type *, irp->types, typ);
251 void remove_irp_type(ir_type *typ)
256 l = ARR_LEN(irp->types);
257 for (i = 0; i < l; ++i) {
258 if (irp->types[i] == typ) {
259 for (; i < l - 1; ++i) {
260 irp->types[i] = irp->types[i+1];
262 ARR_SETLEN(ir_type *, irp->types, l - 1);
268 size_t (get_irp_n_types) (void)
270 return get_irp_n_types_();
273 ir_type *(get_irp_type) (size_t pos)
275 return get_irp_type_(pos);
278 void set_irp_type(size_t pos, ir_type *typ)
281 assert(pos < ARR_LEN((irp)->types));
282 irp->types[pos] = typ;
285 size_t (get_irp_n_modes)(void)
287 return get_irp_n_modes_();
290 ir_mode *(get_irp_mode)(size_t pos)
292 return get_irp_mode_(pos);
295 void add_irp_mode(ir_mode *mode)
297 assert(mode != NULL);
299 ARR_APP1(ir_mode *, irp->modes, mode);
302 void add_irp_opcode(ir_op *opcode)
306 assert(opcode != NULL);
308 len = ARR_LEN(irp->opcodes);
311 ARR_RESIZE(ir_op*, irp->opcodes, code+1);
312 memset(&irp->opcodes[len], 0, (code-len+1) * sizeof(irp->opcodes[0]));
315 assert(irp->opcodes[code] == NULL && "opcode registered twice");
316 irp->opcodes[code] = opcode;
319 void remove_irp_opcode(ir_op *opcode)
321 assert(opcode->code < ARR_LEN(irp->opcodes));
322 irp->opcodes[opcode->code] = NULL;
325 size_t (get_irp_n_opcodes)(void)
327 return get_irp_n_opcodes_();
330 ir_op *(get_irp_opcode)(size_t pos)
332 return get_irp_opcode_(pos);
335 void clear_irp_opcodes_generic_func(void)
339 for (i = 0, n = get_irp_n_opcodes(); i < n; ++i) {
340 ir_op *op = get_irp_opcode(i);
341 op->ops.generic = (op_func)NULL;
345 void set_irp_prog_name(ident *name)
349 int irp_prog_name_is_set(void)
351 return irp->name != new_id_from_str(INITAL_PROG_NAME);
353 ident *get_irp_ident(void)
357 const char *get_irp_name(void)
359 return get_id_str(irp->name);
363 ir_graph *(get_const_code_irg)(void)
365 return get_const_code_irg_();
368 irg_phase_state get_irp_phase_state(void)
370 return irp->phase_state;
373 void set_irp_phase_state(irg_phase_state s)
375 irp->phase_state = s;
378 typedef struct pass_t {
380 irg_phase_state state;
384 * Wrapper for setting the state of a whole ir_prog.
386 static int set_irp_phase_state_wrapper(ir_prog *irp, void *context)
388 pass_t *pass = (pass_t *)context;
389 irg_phase_state state = pass->state;
394 /* set the phase of all graphs */
395 for (i = 0, n = get_irp_n_irgs(); i < n; ++i)
396 set_irg_phase_state(get_irp_irg(i), state);
398 /* set the irp phase */
399 set_irp_phase_state(state);
404 ir_prog_pass_t *set_irp_phase_state_pass(const char *name, irg_phase_state state)
406 struct pass_t *pass = XMALLOCZ(struct pass_t);
408 def_prog_pass_constructor(
409 &pass->pass, name ? name : "set_irp_phase", set_irp_phase_state_wrapper);
413 pass->pass.verify_irprog = ir_prog_no_verify;
414 pass->pass.dump_irprog = ir_prog_no_dump;
419 void set_irp_ip_outedges(ir_node ** ip_outedges)
421 irp->ip_outedges = ip_outedges;
424 ir_node** get_irp_ip_outedges(void)
426 return irp->ip_outedges;
429 irg_callee_info_state get_irp_callee_info_state(void)
431 return irp->callee_info_state;
434 void set_irp_callee_info_state(irg_callee_info_state s)
436 irp->callee_info_state = s;
439 ir_label_t (get_irp_next_label_nr)(void)
441 return get_irp_next_label_nr_();
444 void add_irp_asm(ident *asm_string)
446 ARR_APP1(ident *, irp->global_asms, asm_string);
449 size_t get_irp_n_asms(void)
451 return ARR_LEN(irp->global_asms);
454 ident *get_irp_asm(size_t pos)
456 assert(pos < get_irp_n_asms());
457 return irp->global_asms[pos];
460 int (get_irp_optimization_dumps)(void)
462 return get_irp_optimization_dumps_();
465 void (enable_irp_optimization_dumps)(void)
467 enable_irp_optimization_dumps_();
471 void irp_reserve_resources(ir_prog *irp, irp_resources_t resources)
473 assert((irp->reserved_resources & resources) == 0);
474 irp->reserved_resources |= resources;
477 void irp_free_resources(ir_prog *irp, irp_resources_t resources)
479 assert((irp->reserved_resources & resources) == resources);
480 irp->reserved_resources &= ~resources;
483 irp_resources_t irp_resources_reserved(const ir_prog *irp)
485 return irp->reserved_resources;