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 procedure code.
23 * @author Martin Trapp, Christian Schaefer, Goetz Lindenmaier, Michael Beck
33 #include "irgraph_t.h"
35 #include "irgraph_t.h"
45 #include "irbackedge_t.h"
46 #include "iredges_t.h"
51 #define INITIAL_IDX_IRN_MAP_SIZE 1024
54 * Indicates, whether additional data can be registered to graphs.
55 * If set to 1, this is not possible anymore.
57 static int forbid_new_data = 0;
60 * The amount of additional space for custom data to be allocated upon
61 * creating a new graph.
63 static size_t additional_graph_data_size = 0;
65 ir_graph *current_ir_graph;
66 ir_graph *get_current_ir_graph(void)
68 return current_ir_graph;
71 void set_current_ir_graph(ir_graph *graph)
73 current_ir_graph = graph;
76 /** contains the suffix for frame type names */
77 static ident *frame_type_suffix = NULL;
79 /* initialize the IR graph module */
80 void firm_init_irgraph(void)
82 frame_type_suffix = new_id_from_str(FRAME_TP_SUFFIX);
87 * Allocate a new IR graph.
88 * This function respects the registered graph data. The only reason for
89 * this function is, that there are two locations, where graphs are
90 * allocated (new_r_ir_graph, new_const_code_irg).
91 * @return Memory for a new graph.
93 static ir_graph *alloc_graph(void)
96 size_t size = sizeof(ir_graph) + additional_graph_data_size;
97 char *ptr = XMALLOCNZ(char, size);
99 res = (ir_graph *)(ptr + additional_graph_data_size);
100 res->kind = k_ir_graph;
102 /* initialize the idx->node map. */
103 res->idx_irn_map = NEW_ARR_F(ir_node *, INITIAL_IDX_IRN_MAP_SIZE);
104 memset(res->idx_irn_map, 0, INITIAL_IDX_IRN_MAP_SIZE * sizeof(res->idx_irn_map[0]));
110 * Frees an allocated IR graph
112 static void free_graph(ir_graph *irg)
114 char *ptr = (char *)irg;
117 for (i = 0; i < EDGE_KIND_LAST; ++i)
118 edges_deactivate_kind(irg, i);
119 DEL_ARR_F(irg->idx_irn_map);
120 free(ptr - additional_graph_data_size);
124 * Set the number of locals for a given graph.
126 * @param irg the graph
127 * @param n_loc number of locals
129 void irg_set_nloc(ir_graph *res, int n_loc)
131 assert(res->phase_state == phase_building);
133 res->n_loc = n_loc + 1; /* number of local variables that are never
134 dereferenced in this graph plus one for
135 the store. This is not the number of
136 parameters to the procedure! */
138 if (res->loc_descriptions) {
139 xfree(res->loc_descriptions);
140 res->loc_descriptions = NULL;
144 /* Allocates a list of nodes:
145 - The start block containing a start node and Proj nodes for it's four
146 results (X, M, P, Tuple).
147 - The end block containing an end node. This block is not matured after
148 new_ir_graph as predecessors need to be added to it.
149 - The current block, which is empty and also not matured.
150 Further it allocates several datastructures needed for graph construction
153 ir_graph *new_r_ir_graph(ir_entity *ent, int n_loc)
156 ir_node *first_block;
157 ir_node *end, *start, *start_block, *initial_mem, *projX, *bad;
161 /* inform statistics here, as blocks will be already build on this graph */
162 hook_new_graph(res, ent);
164 current_ir_graph = res;
166 /*-- initialized for each graph. --*/
167 res->kind = k_ir_graph;
168 res->obst = XMALLOC(struct obstack);
169 obstack_init(res->obst);
171 res->phase_state = phase_building;
172 irg_set_nloc(res, n_loc);
174 /* descriptions will be allocated on demand */
175 res->loc_descriptions = NULL;
177 res->visited = 0; /* visited flag, for the ir walker */
178 res->block_visited = 0; /* visited flag, for the 'block'-walker */
180 res->extbb_obst = NULL;
182 res->last_node_idx = 0;
187 res->inline_property = irg_inline_any;
188 res->additional_properties = mtp_property_inherited; /* inherited from type */
190 res->irg_pinned_state = op_pin_state_pinned;
191 res->outs_state = outs_none;
192 res->dom_state = dom_none;
193 res->pdom_state = dom_none;
194 res->typeinfo_state = ir_typeinfo_none;
195 set_irp_typeinfo_inconsistent(); /* there is a new graph with typeinfo_none. */
196 res->callee_info_state = irg_callee_info_none;
197 res->loopinfo_state = loopinfo_none;
198 res->class_cast_state = ir_class_casts_transitive;
199 res->extblk_state = ir_extblk_info_none;
200 res->execfreq_state = exec_freq_none;
201 res->fp_model = fp_model_precise;
202 res->entity_usage_state = ir_entity_usage_not_computed;
203 res->mem_disambig_opt = aa_opt_inherited;
205 /*-- Type information for the procedure of the graph --*/
207 set_entity_irg(ent, res);
209 /*-- a class type so that it can contain "inner" methods as in Pascal. --*/
210 res->frame_type = new_type_frame();
212 /* the Anchor node must be created first */
213 res->anchor = new_Anchor(res);
215 /*-- Nodes needed in every graph --*/
216 set_irg_end_block (res, new_immBlock());
217 set_cur_block(get_irg_end_block(res));
219 set_irg_end (res, end);
221 start_block = new_immBlock();
222 set_cur_block(start_block);
223 set_irg_start_block(res, start_block);
224 bad = new_ir_node(NULL, res, start_block, op_Bad, mode_T, 0, NULL);
225 bad->attr.irg.irg = res;
226 set_irg_bad (res, bad);
227 set_irg_no_mem (res, new_ir_node(NULL, res, start_block, op_NoMem, mode_M, 0, NULL));
229 set_irg_start (res, start);
231 /* Proj results of start node */
232 projX = new_Proj(start, mode_X, pn_Start_X_initial_exec);
233 set_irg_initial_exec (res, projX);
234 set_irg_frame (res, new_Proj(start, mode_P_data, pn_Start_P_frame_base));
235 set_irg_tls (res, new_Proj(start, mode_P_data, pn_Start_P_tls));
236 set_irg_args (res, new_Proj(start, mode_T, pn_Start_T_args));
237 initial_mem = new_Proj(start, mode_M, pn_Start_M);
238 set_irg_initial_mem(res, initial_mem);
240 set_store(initial_mem);
242 res->index = get_irp_new_irg_idx();
244 res->graph_nr = get_irp_new_node_nr();
247 mature_immBlock(res->current_block);
249 /*-- Make a block to start with --*/
250 first_block = new_immBlock();
251 set_cur_block(first_block);
252 add_immBlock_pred(first_block, projX);
254 res->method_execution_frequency = -1.0;
255 res->estimated_node_count = 0;
260 ir_graph *new_ir_graph(ir_entity *ent, int n_loc)
262 ir_graph *res = new_r_ir_graph(ent, n_loc);
263 add_irp_irg(res); /* remember this graph global. */
267 /* Make a rudimentary IR graph for the constant code.
268 Must look like a correct irg, spare everything else. */
269 ir_graph *new_const_code_irg(void)
271 ir_graph *res = alloc_graph();
278 ir_node *start_block;
281 /* inform statistics here, as blocks will be already build on this graph */
282 hook_new_graph(res, NULL);
284 current_ir_graph = res;
285 res->n_loc = 1; /* Only the memory. */
286 res->visited = 0; /* visited flag, for the ir walker */
287 res->block_visited = 0; /* visited flag, for the 'block'-walker */
288 res->obst = XMALLOC(struct obstack);
289 obstack_init(res->obst);
290 res->extbb_obst = NULL;
292 res->last_node_idx = 0;
294 res->phase_state = phase_building;
295 res->irg_pinned_state = op_pin_state_pinned;
296 res->extblk_state = ir_extblk_info_none;
297 res->fp_model = fp_model_precise;
299 /* value table for global value numbering for optimizing use in iropt.c */
302 res->frame_type = NULL;
304 /* the Anchor node must be created first */
305 res->anchor = new_Anchor(res);
307 /* -- The end block -- */
308 end_block = new_immBlock();
309 set_irg_end_block(res, end_block);
310 set_cur_block(end_block);
312 set_irg_end (res, end);
313 mature_immBlock(end_block);
315 /* -- The start block -- */
316 start_block = new_immBlock();
317 set_cur_block(start_block);
318 set_irg_start_block(res, start_block);
319 bad = new_ir_node(NULL, res, start_block, op_Bad, mode_T, 0, NULL);
320 bad->attr.irg.irg = res;
321 set_irg_bad(res, bad);
322 no_mem = new_ir_node(NULL, res, start_block, op_NoMem, mode_M, 0, NULL);
323 set_irg_no_mem(res, no_mem);
325 set_irg_start(res, start);
327 /* Proj results of start node */
328 set_irg_initial_mem(res, new_Proj(start, mode_M, pn_Start_M));
329 projX = new_Proj(start, mode_X, pn_Start_X_initial_exec);
330 mature_immBlock(start_block);
332 body_block = new_immBlock();
333 add_immBlock_pred(body_block, projX);
334 mature_immBlock(body_block); /* mature the 'body' block for expressions */
335 set_cur_block(body_block);
337 /* Set the visited flag high enough that the blocks will never be visited. */
338 set_irn_visited(body_block, -1);
339 set_Block_block_visited(body_block, -1);
340 set_Block_block_visited(start_block, -1);
341 set_irn_visited(start_block, -1);
342 set_irn_visited(bad, -1);
343 set_irn_visited(no_mem, -1);
349 * Pre-Walker: Copies blocks and nodes from the original method graph
350 * to the copied graph.
352 * @param n A node from the original method graph.
353 * @param env The copied graph.
355 static void copy_all_nodes(ir_node *node, void *env)
358 ir_node *new_node = irn_copy_into_irg(node, irg);
360 set_irn_link(node, new_node);
362 /* fix access to entities on the stack frame */
363 if (is_Sel(new_node)) {
364 ir_entity *ent = get_Sel_entity(new_node);
365 ir_type *tp = get_entity_owner(ent);
367 if (is_frame_type(tp)) {
368 /* replace by the copied entity */
369 ent = get_entity_link(ent);
371 assert(is_entity(ent));
372 assert(get_entity_owner(ent) == get_irg_frame_type(irg));
373 set_Sel_entity(new_node, ent);
379 * Post-walker: Set the predecessors of the copied nodes.
380 * The copied nodes are set as link of their original nodes. The links of
381 * "irn" predecessors are the predecessors of copied node.
383 static void rewire(ir_node *irn, void *env)
386 irn_rewire_inputs(irn);
389 static ir_node *get_new_node(const ir_node *old_node)
391 return (ir_node*) get_irn_link(old_node);
395 * Create a new graph that is a copy of a given one.
397 ir_graph *create_irg_copy(ir_graph *irg)
404 res->visited = 0; /* visited flag, for the ir walker */
405 res->block_visited = 0; /* visited flag, for the 'block'-walker */
406 res->obst = XMALLOC(struct obstack);
407 obstack_init(res->obst);
408 res->extbb_obst = NULL;
410 res->last_node_idx = 0;
412 res->phase_state = irg->phase_state;
413 res->irg_pinned_state = irg->irg_pinned_state;
414 res->extblk_state = ir_extblk_info_none;
415 res->fp_model = irg->fp_model;
419 /* clone the frame type here for safety */
420 irp_reserve_resources(irp, IR_RESOURCE_ENTITY_LINK);
421 res->frame_type = clone_frame_type(irg->frame_type);
423 res->phase_state = irg->phase_state;
425 ir_reserve_resources(irg, IR_RESOURCE_IRN_LINK);
427 /* copy all nodes from the graph irg to the new graph res */
428 irg_walk_anchors(irg, copy_all_nodes, rewire, res);
430 /* copy the Anchor node */
431 res->anchor = get_new_node(irg->anchor);
433 /* -- The end block -- */
434 set_irg_end_block (res, get_new_node(get_irg_end_block(irg)));
435 set_irg_end (res, get_new_node(get_irg_end(irg)));
437 /* -- The start block -- */
438 set_irg_start_block(res, get_new_node(get_irg_start_block(irg)));
439 set_irg_bad (res, get_new_node(get_irg_bad(irg)));
440 set_irg_no_mem (res, get_new_node(get_irg_no_mem(irg)));
441 set_irg_start (res, get_new_node(get_irg_start(irg)));
443 /* Proj results of start node */
444 set_irg_initial_mem(res, get_new_node(get_irg_initial_mem(irg)));
446 /* Copy the node count estimation. Would be strange if this
447 is different from the original one. */
448 res->estimated_node_count = irg->estimated_node_count;
450 ir_free_resources(irg, IR_RESOURCE_IRN_LINK);
451 irp_free_resources(irp, IR_RESOURCE_ENTITY_LINK);
456 /* Frees the passed irgraph.
457 Deallocates all nodes in this graph and the ir_graph structure.
458 Sets the field irgraph in the corresponding entity to NULL.
459 Does not remove the irgraph from the list in irprog (requires
460 inefficient search, call remove_irp_irg by hand).
461 Does not free types, entities or modes that are used only by this
462 graph, nor the entity standing for this graph. */
463 void free_ir_graph(ir_graph *irg)
465 assert(is_ir_graph(irg));
467 edges_deactivate(irg);
469 hook_free_graph(irg);
470 if (irg->outs_state != outs_none)
473 free_type(irg->frame_type);
476 set_entity_irg(irg->ent, NULL); /* not set in const code irg */
479 free_End(get_irg_end(irg));
480 obstack_free(irg->obst,NULL);
482 if (irg->loc_descriptions)
483 free(irg->loc_descriptions);
488 /* access routines for all ir_graph attributes:
490 {attr type} get_irg_{attribute name} (ir_graph *irg);
491 void set_irg_{attr name} (ir_graph *irg, {attr type} {attr}); */
493 int (is_ir_graph)(const void *thing)
495 return _is_ir_graph(thing);
499 /* Outputs a unique number for this node */
500 long get_irg_graph_nr(const ir_graph *irg)
502 return irg->graph_nr;
505 long get_irg_graph_nr(const ir_graph *irg)
507 return PTR_TO_INT(irg);
511 int get_irg_idx(const ir_graph *irg)
516 ir_node *(get_idx_irn)(ir_graph *irg, unsigned idx)
518 return _get_idx_irn(irg, idx);
521 ir_node *(get_irg_start_block)(const ir_graph *irg)
523 return _get_irg_start_block(irg);
526 void (set_irg_start_block)(ir_graph *irg, ir_node *node)
528 _set_irg_start_block(irg, node);
531 ir_node *(get_irg_start)(const ir_graph *irg)
533 return _get_irg_start(irg);
536 void (set_irg_start)(ir_graph *irg, ir_node *node)
538 _set_irg_start(irg, node);
541 ir_node *(get_irg_end_block)(const ir_graph *irg)
543 return _get_irg_end_block(irg);
546 void (set_irg_end_block)(ir_graph *irg, ir_node *node)
548 _set_irg_end_block(irg, node);
551 ir_node *(get_irg_end)(const ir_graph *irg)
553 return _get_irg_end(irg);
556 void (set_irg_end)(ir_graph *irg, ir_node *node)
558 _set_irg_end(irg, node);
561 ir_node *(get_irg_initial_exec)(const ir_graph *irg)
563 return _get_irg_initial_exec(irg);
566 void (set_irg_initial_exec)(ir_graph *irg, ir_node *node)
568 _set_irg_initial_exec(irg, node);
571 ir_node *(get_irg_frame)(const ir_graph *irg)
573 return _get_irg_frame(irg);
576 void (set_irg_frame)(ir_graph *irg, ir_node *node)
578 _set_irg_frame(irg, node);
581 ir_node *(get_irg_tls)(const ir_graph *irg)
583 return _get_irg_tls(irg);
586 void (set_irg_tls)(ir_graph *irg, ir_node *node)
588 _set_irg_tls(irg, node);
591 ir_node *(get_irg_initial_mem)(const ir_graph *irg)
593 return _get_irg_initial_mem(irg);
596 void (set_irg_initial_mem)(ir_graph *irg, ir_node *node)
598 _set_irg_initial_mem(irg, node);
601 ir_node *(get_irg_args)(const ir_graph *irg)
603 return _get_irg_args(irg);
606 void (set_irg_args)(ir_graph *irg, ir_node *node)
608 _set_irg_args(irg, node);
611 ir_node *(get_irg_bad)(const ir_graph *irg)
613 return _get_irg_bad(irg);
616 void (set_irg_bad)(ir_graph *irg, ir_node *node)
618 _set_irg_bad(irg, node);
621 ir_node *(get_irg_no_mem)(const ir_graph *irg)
623 return _get_irg_no_mem(irg);
626 void (set_irg_no_mem)(ir_graph *irg, ir_node *node)
628 _set_irg_no_mem(irg, node);
631 ir_node *(get_irg_current_block)(const ir_graph *irg)
633 return _get_irg_current_block(irg);
636 void (set_irg_current_block)(ir_graph *irg, ir_node *node)
638 _set_irg_current_block(irg, node);
641 ir_entity *(get_irg_entity)(const ir_graph *irg)
643 return _get_irg_entity(irg);
646 void (set_irg_entity)(ir_graph *irg, ir_entity *ent)
648 _set_irg_entity(irg, ent);
651 ir_type *(get_irg_frame_type)(ir_graph *irg)
653 return _get_irg_frame_type(irg);
656 void (set_irg_frame_type)(ir_graph *irg, ir_type *ftp)
658 _set_irg_frame_type(irg, ftp);
661 /* Returns the value parameter type of an IR graph. */
662 ir_type *get_irg_value_param_type(ir_graph *irg)
664 ir_entity *ent = get_irg_entity(irg);
665 ir_type *mtp = get_entity_type(ent);
666 return get_method_value_param_type(mtp);
669 int get_irg_n_locs(ir_graph *irg)
671 return irg->n_loc - 1;
674 /* Returns the obstack associated with the graph. */
676 (get_irg_obstack)(const ir_graph *irg) {
677 return _get_irg_obstack(irg);
681 * Returns true if the node n is allocated on the storage of graph irg.
683 * Implementation is GLIBC specific as is uses the internal _obstack_chunk implementation.
685 int node_is_in_irgs_storage(ir_graph *irg, ir_node *n)
687 struct _obstack_chunk *p;
690 * checks weather the ir_node pointer is on the obstack.
691 * A more sophisticated check would test the "whole" ir_node
693 for (p = irg->obst->chunk; p; p = p->prev) {
694 if (((char *)p->contents <= (char *)n) && ((char *)n < (char *)p->limit))
701 irg_phase_state (get_irg_phase_state)(const ir_graph *irg)
703 return _get_irg_phase_state(irg);
706 void (set_irg_phase_state)(ir_graph *irg, irg_phase_state state)
708 _set_irg_phase_state(irg, state);
711 op_pin_state (get_irg_pinned)(const ir_graph *irg)
713 return _get_irg_pinned(irg);
716 irg_outs_state (get_irg_outs_state)(const ir_graph *irg)
718 return _get_irg_outs_state(irg);
721 void (set_irg_outs_inconsistent)(ir_graph *irg)
723 _set_irg_outs_inconsistent(irg);
726 irg_extblk_state (get_irg_extblk_state)(const ir_graph *irg)
728 return _get_irg_extblk_state(irg);
731 void (set_irg_extblk_inconsistent)(ir_graph *irg)
733 _set_irg_extblk_inconsistent(irg);
736 irg_dom_state (get_irg_dom_state)(const ir_graph *irg)
738 return _get_irg_dom_state(irg);
741 irg_dom_state (get_irg_postdom_state)(const ir_graph *irg)
743 return _get_irg_postdom_state(irg);
746 void (set_irg_doms_inconsistent)(ir_graph *irg)
748 _set_irg_doms_inconsistent(irg);
751 irg_loopinfo_state (get_irg_loopinfo_state)(const ir_graph *irg)
753 return _get_irg_loopinfo_state(irg);
756 void (set_irg_loopinfo_state)(ir_graph *irg, irg_loopinfo_state s)
758 _set_irg_loopinfo_state(irg, s);
761 void (set_irg_loopinfo_inconsistent)(ir_graph *irg)
763 _set_irg_loopinfo_inconsistent(irg);
766 void set_irp_loopinfo_inconsistent(void)
769 for (i = get_irp_n_irgs() - 1; i >= 0; --i) {
770 set_irg_loopinfo_inconsistent(get_irp_irg(i));
776 void (set_irg_pinned)(ir_graph *irg, op_pin_state p)
778 _set_irg_pinned(irg, p);
781 irg_callee_info_state (get_irg_callee_info_state)(const ir_graph *irg)
783 return _get_irg_callee_info_state(irg);
786 void (set_irg_callee_info_state)(ir_graph *irg, irg_callee_info_state s)
788 _set_irg_callee_info_state(irg, s);
791 irg_inline_property (get_irg_inline_property)(const ir_graph *irg)
793 return _get_irg_inline_property(irg);
796 void (set_irg_inline_property)(ir_graph *irg, irg_inline_property s)
798 _set_irg_inline_property(irg, s);
801 unsigned (get_irg_additional_properties)(const ir_graph *irg)
803 return _get_irg_additional_properties(irg);
806 void (set_irg_additional_properties)(ir_graph *irg, unsigned property_mask)
808 _set_irg_additional_properties(irg, property_mask);
811 void (set_irg_additional_property)(ir_graph *irg, mtp_additional_property flag)
813 _set_irg_additional_property(irg, flag);
816 void (set_irg_link)(ir_graph *irg, void *thing)
818 _set_irg_link(irg, thing);
821 void *(get_irg_link)(const ir_graph *irg)
823 return _get_irg_link(irg);
826 ir_visited_t (get_irg_visited)(const ir_graph *irg)
828 return _get_irg_visited(irg);
831 /** maximum visited flag content of all ir_graph visited fields. */
832 static ir_visited_t max_irg_visited = 0;
834 void set_irg_visited(ir_graph *irg, ir_visited_t visited)
836 irg->visited = visited;
837 if (irg->visited > max_irg_visited) {
838 max_irg_visited = irg->visited;
842 void inc_irg_visited(ir_graph *irg)
845 if (irg->visited > max_irg_visited) {
846 max_irg_visited = irg->visited;
850 ir_visited_t get_max_irg_visited(void)
852 return max_irg_visited;
855 void set_max_irg_visited(int val)
857 max_irg_visited = val;
860 ir_visited_t inc_max_irg_visited(void)
864 for (i = 0; i < get_irp_n_irgs(); i++)
865 assert(max_irg_visited >= get_irg_visited(get_irp_irg(i)));
867 return ++max_irg_visited;
870 ir_visited_t (get_irg_block_visited)(const ir_graph *irg)
872 return _get_irg_block_visited(irg);
875 void (set_irg_block_visited)(ir_graph *irg, ir_visited_t visited)
877 _set_irg_block_visited(irg, visited);
880 void (inc_irg_block_visited)(ir_graph *irg)
882 _inc_irg_block_visited(irg);
885 /* Return the floating point model of this graph. */
886 unsigned (get_irg_fp_model)(const ir_graph *irg)
888 return _get_irg_fp_model(irg);
891 /* Sets the floating point model for this graph. */
892 void set_irg_fp_model(ir_graph *irg, unsigned model)
894 irg->fp_model = model;
897 /* set a description for local value n */
898 void set_irg_loc_description(ir_graph *irg, int n, void *description)
900 assert(0 <= n && n < irg->n_loc);
902 if (! irg->loc_descriptions)
903 irg->loc_descriptions = XMALLOCNZ(void*, irg->n_loc);
905 irg->loc_descriptions[n] = description;
908 /* get the description for local value n */
909 void *get_irg_loc_description(ir_graph *irg, int n)
911 assert(0 <= n && n < irg->n_loc);
912 return irg->loc_descriptions ? irg->loc_descriptions[n] : NULL;
915 void irg_register_phase(ir_graph *irg, ir_phase_id id, ir_phase *phase)
917 assert(id <= PHASE_LAST);
918 assert(irg->phases[id] == NULL);
919 irg->phases[id] = phase;
922 void irg_invalidate_phases(ir_graph *irg)
925 for (p = 0; p <= PHASE_LAST; ++p) {
926 ir_phase *phase = irg->phases[p];
931 irg->phases[p] = NULL;
936 void ir_reserve_resources(ir_graph *irg, ir_resources_t resources)
938 assert((resources & ~IR_RESOURCE_LOCAL_MASK) == 0);
939 assert((irg->reserved_resources & resources) == 0);
940 irg->reserved_resources |= resources;
943 void ir_free_resources(ir_graph *irg, ir_resources_t resources)
945 assert((irg->reserved_resources & resources) == resources);
946 irg->reserved_resources &= ~resources;
949 ir_resources_t ir_resources_reserved(const ir_graph *irg)
951 return irg->reserved_resources;
955 /* Returns a estimated node count of the irg. */
956 unsigned (get_irg_estimated_node_cnt)(const ir_graph *irg)
958 return _get_irg_estimated_node_cnt(irg);
961 /* Returns the last irn index for this graph. */
962 unsigned get_irg_last_idx(const ir_graph *irg)
964 return irg->last_node_idx;
967 /* register additional space in an IR graph */
968 size_t register_additional_graph_data(size_t size)
970 assert(!forbid_new_data && "Too late to register additional node data");
975 return additional_graph_data_size += size;
978 void (set_irg_state)(ir_graph *irg, ir_graph_state_t state)
980 _set_irg_state(irg, state);
983 void (clear_irg_state)(ir_graph *irg, ir_graph_state_t state)
985 _clear_irg_state(irg, state);
988 int (is_irg_state)(const ir_graph *irg, ir_graph_state_t state)
990 return _is_irg_state(irg, state);