2 * Copyright (C) 1995-2008 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
36 #include "irgraph_t.h"
37 #include "pseudo_irg.h"
43 /** The name of the Global type. */
44 #define GLOBAL_TYPE_NAME "GlobalType"
45 /** The name of the Thread Local Storage type. */
46 #define TLS_TYPE_NAME "TLS"
47 /** The initial name of the irp program. */
48 #define INITAL_PROG_NAME "no_name_set"
50 /* A variable from where everything in the ir can be accessed. */
52 ir_prog *get_irp(void) { return irp; }
55 * Create a new incomplete ir_prog.
57 static ir_prog *new_incomplete_ir_prog(void) {
60 res = xmalloc(sizeof(*res));
61 memset(res, 0, sizeof(*res));
63 res->kind = k_ir_prog;
64 res->graphs = NEW_ARR_F(ir_graph *, 0);
65 res->pseudo_graphs = NEW_ARR_F(ir_graph *, 0);
66 res->types = NEW_ARR_F(ir_type *, 0);
67 res->modes = NEW_ARR_F(ir_mode *, 0);
68 res->opcodes = NEW_ARR_F(ir_op *, 0);
69 res->last_region_nr = 0;
70 res->last_label_nr = 1; /* 0 is reserved as non-label */
80 /** Completes an incomplete irprog. */
81 static ir_prog *complete_ir_prog(ir_prog *irp) {
82 #define IDENT(s) new_id_from_chars(s, sizeof(s)-1)
84 irp->name = IDENT(INITAL_PROG_NAME);
85 irp->glob_type = new_type_class(IDENT(GLOBAL_TYPE_NAME));
86 irp->tls_type = new_type_struct(IDENT(TLS_TYPE_NAME));
87 /* Remove these types from type list. Must be treated differently than
89 remove_irp_type(irp->glob_type);
90 remove_irp_type(irp->tls_type);
92 /* Set these flags for debugging. */
93 irp->glob_type->flags |= tf_global_type;
94 irp->tls_type->flags |= tf_tls_type;
96 /* The global type is a class, but we cannot derive from it, so set
97 the final property to assist optimizations that checks for it. */
98 set_class_final(irp->glob_type, 1);
100 irp->const_code_irg = new_const_code_irg();
102 irp->phase_state = phase_building;
103 irp->outs_state = outs_none;
104 irp->ip_outedges = NULL;
105 irp->trouts_state = outs_none;
106 irp->class_cast_state = ir_class_casts_transitive;
107 irp->globals_adr_taken_state = ir_address_taken_not_computed;
113 /* initializes ir_prog. Constructs only the basic lists. */
114 void init_irprog_1(void) {
115 irp = new_incomplete_ir_prog();
118 /* Completes ir_prog. */
119 void init_irprog_2(void) {
120 complete_ir_prog(irp);
123 /* Create a new ir prog. Automatically called by init_firm through
125 ir_prog *new_ir_prog (void) {
126 return complete_ir_prog(new_incomplete_ir_prog());
129 /* frees all memory used by irp. Types in type list, irgs in irg
130 list and entities in global type must be freed by hand before. */
131 void free_ir_prog(void) {
133 free_type(irp->glob_type);
135 free_type(irp->tls_type);
137 /* @@@ * free_ir_graph(irp->const_code_irg); * ?? End has no in?? */
138 DEL_ARR_F(irp->graphs);
139 DEL_ARR_F(irp->pseudo_graphs);
140 DEL_ARR_F(irp->types);
141 DEL_ARR_F(irp->modes);
142 DEL_ARR_F(irp->opcodes);
145 irp->const_code_irg = NULL;
149 /*- Functions to access the fields of ir_prog -*/
152 /* Access the main routine of the compiled program. */
153 ir_graph *get_irp_main_irg(void) {
155 return irp->main_irg;
158 void set_irp_main_irg(ir_graph *main_irg) {
160 irp->main_irg = main_irg;
163 ir_type *(get_glob_type)(void) {
164 return _get_glob_type();
167 ir_type *(get_tls_type)(void) {
168 return _get_tls_type();
171 /* Adds irg to the list of ir graphs in irp. */
172 void add_irp_irg(ir_graph *irg) {
174 assert(irp && irp->graphs);
175 ARR_APP1(ir_graph *, irp->graphs, irg);
178 /* Removes irg from the list or irgs, shrinks the list by one. */
179 void remove_irp_irg_from_list(ir_graph *irg){
183 for (i = 0; i < (ARR_LEN (irp->graphs)); i++) {
184 if (irp->graphs[i] == irg) {
186 for(; i < (ARR_LEN (irp->graphs)) - 1; i++) {
187 irp->graphs[i] = irp->graphs[i+1];
189 ARR_SETLEN(ir_graph*, irp->graphs, (ARR_LEN(irp->graphs)) - 1);
194 for (i = 0; i < (ARR_LEN (irp->pseudo_graphs)); i++) {
195 if (irp->pseudo_graphs[i] == irg) {
196 for(; i < (ARR_LEN (irp->pseudo_graphs)) - 1; i++) {
197 irp->pseudo_graphs[i] = irp->pseudo_graphs[i+1];
199 ARR_SETLEN(ir_graph*, irp->pseudo_graphs, (ARR_LEN(irp->pseudo_graphs)) - 1);
206 /* Removes irg from the list or irgs, shrinks the list by one. */
207 void remove_irp_irg(ir_graph *irg){
210 remove_irp_irg_from_list(irg);
213 int (get_irp_n_irgs)(void) {
214 return _get_irp_n_irgs();
217 ir_graph *(get_irp_irg)(int pos){
218 return _get_irp_irg(pos);
221 int get_irp_last_idx(void) {
222 return irp->max_irg_idx;
225 void set_irp_irg(int pos, ir_graph *irg) {
227 assert(pos < (ARR_LEN(irp->graphs)));
228 irp->graphs[pos] = irg;
231 /* Gets the number of graphs _and_ pseudo graphs. */
232 int get_irp_n_allirgs(void) {
233 /* We can not call get_irp_n_irgs, as we end up in a recursion ... */
234 return ARR_LEN(irp->graphs) + get_irp_n_pseudo_irgs();
237 /* Returns the ir graph at position pos of all graphs (including
238 pseudo graphs). Visits first graphs, then pseudo graphs. */
239 ir_graph *get_irp_allirg(int pos) {
240 int n_irgs = ARR_LEN(irp->graphs);
243 return irp->graphs[pos];
245 return get_irp_pseudo_irg(pos-n_irgs);
249 /* Adds type to the list of types in irp. */
250 void add_irp_type(ir_type *typ) {
253 ARR_APP1 (ir_type *, irp->types, typ);
256 /* Remove type form the list of types in irp. */
257 void remove_irp_type(ir_type *typ) {
261 for (i = ARR_LEN(irp->types) -1; i >= 0; i--) {
262 if (irp->types[i] == typ) {
263 for(; i < (ARR_LEN(irp->types)) - 1; i++) {
264 irp->types[i] = irp->types[i+1];
266 ARR_SETLEN(ir_type *, irp->types, (ARR_LEN(irp->types)) - 1);
272 int (get_irp_n_types) (void) {
273 return _get_irp_n_types();
276 ir_type *(get_irp_type) (int pos) {
277 return _get_irp_type(pos);
280 void set_irp_type(int pos, ir_type *typ) {
282 assert(pos < (ARR_LEN((irp)->types)));
283 irp->types[pos] = typ;
286 /* Returns the number of all modes in the irp. */
287 int (get_irp_n_modes)(void) {
288 return _get_irp_n_modes();
291 /* Returns the mode at position pos in the irp. */
292 ir_mode *(get_irp_mode)(int pos) {
293 return _get_irp_mode(pos);
296 /* Adds mode to the list of modes in irp. */
297 void add_irp_mode(ir_mode *mode) {
298 assert(mode != NULL);
300 ARR_APP1(ir_mode *, irp->modes, mode);
303 /* Adds opcode to the list of opcodes in irp. */
304 void add_irp_opcode(ir_op *opcode) {
305 assert(opcode != NULL);
307 assert(opcode->code == (unsigned) ARR_LEN(irp->opcodes) && "new_ir_op() called in wrong order");
308 ARR_APP1(ir_op *, irp->opcodes, opcode);
311 /* Removes opcode from the list of opcodes and shrinks the list by one. */
312 void remove_irp_opcode(ir_op *opcode) {
316 for (i = ARR_LEN(irp->opcodes) -1; i >= 0; i--) {
317 if (irp->opcodes[i] == opcode) {
318 for (; i < (ARR_LEN(irp->opcodes)) - 1; i++) {
319 irp->opcodes[i] = irp->opcodes[i+1];
321 ARR_SETLEN(ir_op *, irp->opcodes, (ARR_LEN(irp->opcodes)) - 1);
327 /* Returns the number of all opcodes in the irp. */
328 int (get_irp_n_opcodes)(void) {
329 return _get_irp_n_opcodes();
332 /* Returns the opcode at position pos in the irp. */
333 ir_op *(get_irp_opcode)(int pos) {
334 return _get_irp_opcode(pos);
337 /* Sets the generic function pointer of all opcodes to NULL */
338 void clear_irp_opcodes_generic_func(void) {
341 for (i = get_irp_n_opcodes() - 1; i >= 0; --i) {
342 ir_op *op = get_irp_opcode(i);
343 op->ops.generic = (op_func)NULL;
347 /*- File name / executable name or the like -*/
348 void set_irp_prog_name(ident *name) {
351 int irp_prog_name_is_set(void) {
352 return irp->name != new_id_from_str(INITAL_PROG_NAME);
354 ident *get_irp_prog_ident(void) {
357 const char *get_irp_prog_name(void) {
358 return get_id_str(irp->name);
362 ir_graph *(get_const_code_irg)(void) {
363 return _get_const_code_irg();
366 irg_phase_state get_irp_phase_state(void) {
367 return irp->phase_state;
370 void set_irp_phase_state(irg_phase_state s) {
371 irp->phase_state = s;
374 irg_outs_state get_irp_ip_outs_state(void) {
375 return irp->outs_state;
378 void set_irp_ip_outs_inconsistent(void) {
379 irp->outs_state = outs_inconsistent;
382 void set_irp_ip_outedges(ir_node ** ip_outedges) {
383 irp->ip_outedges = ip_outedges;
386 ir_node** get_irp_ip_outedges(void) {
387 return irp->ip_outedges;
391 irg_callee_info_state get_irp_callee_info_state(void) {
392 return irp->callee_info_state;
395 void set_irp_callee_info_state(irg_callee_info_state s) {
396 irp->callee_info_state = s;
399 /* Returns a new, unique exception region number. */
400 ir_exc_region_t (get_irp_next_region_nr)(void) {
401 return _get_irp_next_region_nr();
404 /* Returns a new, unique label number. */
405 ir_label_t (get_irp_next_label_nr)(void) {
406 return _get_irp_next_label_nr();