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
35 #include "irgraph_t.h"
37 #include "irgraph_t.h"
47 #include "irbackedge_t.h"
48 #include "iredges_t.h"
52 #define INITIAL_IDX_IRN_MAP_SIZE 1024
55 * Indicates, whether additional data can be registered to graphs.
56 * If set to 1, this is not possible anymore.
58 static int forbid_new_data = 0;
61 * The amount of additional space for custom data to be allocated upon
62 * creating a new graph.
64 static size_t additional_graph_data_size = 0;
66 ir_graph *current_ir_graph;
67 ir_graph *get_current_ir_graph(void) {
68 return current_ir_graph;
71 void set_current_ir_graph(ir_graph *graph) {
72 current_ir_graph = graph;
75 #ifdef INTERPROCEDURAL_VIEW
76 int firm_interprocedural_view = 0;
78 int (get_interprocedural_view)(void) {
79 return _get_interprocedural_view();
82 void (set_interprocedural_view)(int state) {
83 firm_interprocedural_view = state;
85 /* set function vectors for faster access */
87 _get_irn_arity = _get_irn_inter_arity;
88 _get_irn_n = _get_irn_inter_n;
91 _get_irn_arity = _get_irn_intra_arity;
92 _get_irn_n = _get_irn_intra_n;
97 /** contains the suffix for frame type names */
98 static ident *frame_type_suffix = NULL;
100 /* initialize the IR graph module */
101 void firm_init_irgraph(void) {
102 frame_type_suffix = new_id_from_str(FRAME_TP_SUFFIX);
107 * Allocate a new IR graph.
108 * This function respects the registered graph data. The only reason for
109 * this function is, that there are two locations, where graphs are
110 * allocated (new_r_ir_graph, new_const_code_irg).
111 * @return Memory for a new graph.
113 static ir_graph *alloc_graph(void) {
115 size_t size = sizeof(ir_graph) + additional_graph_data_size;
116 char *ptr = xmalloc(size);
117 memset(ptr, 0, size);
119 res = (ir_graph *)(ptr + additional_graph_data_size);
120 res->kind = k_ir_graph;
122 /* initialize the idx->node map. */
123 res->idx_irn_map = NEW_ARR_F(ir_node *, INITIAL_IDX_IRN_MAP_SIZE);
124 memset(res->idx_irn_map, 0, INITIAL_IDX_IRN_MAP_SIZE * sizeof(res->idx_irn_map[0]));
130 * Frees an allocated IR graph
132 static void free_graph(ir_graph *irg) {
133 char *ptr = (char *)irg;
136 for (i = 0; i < EDGE_KIND_LAST; ++i)
137 edges_deactivate_kind(irg, i);
138 DEL_ARR_F(irg->idx_irn_map);
139 free(ptr - additional_graph_data_size);
143 * Set the number of locals for a given graph.
145 * @param irg the graph
146 * @param n_loc number of locals
148 void irg_set_nloc(ir_graph *res, int n_loc) {
149 assert(res->phase_state == phase_building);
151 if (get_opt_precise_exc_context()) {
152 res->n_loc = n_loc + 1 + 1; /* number of local variables that are never
153 dereferenced in this graph plus one for
154 the store plus one for links to fragile
155 operations. n_loc is not the number of
156 parameters to the procedure! */
158 res->n_loc = n_loc + 1; /* number of local variables that are never
159 dereferenced in this graph plus one for
160 the store. This is not the number of parameters
163 if (res->loc_descriptions) {
164 xfree(res->loc_descriptions);
165 res->loc_descriptions = NULL;
169 /* Allocates a list of nodes:
170 - The start block containing a start node and Proj nodes for it's four
171 results (X, M, P, Tuple).
172 - The end block containing an end node. This block is not matured after
173 new_ir_graph as predecessors need to be added to it.
174 - The current block, which is empty and also not matured.
175 Further it allocates several datastructures needed for graph construction
178 ir_graph *new_r_ir_graph(ir_entity *ent, int n_loc) {
180 ir_node *first_block;
181 ir_node *end, *start, *start_block, *initial_mem, *projX, *bad;
185 /* inform statistics here, as blocks will be already build on this graph */
186 hook_new_graph(res, ent);
188 current_ir_graph = res;
190 /*-- initialized for each graph. --*/
191 res->kind = k_ir_graph;
192 res->obst = XMALLOC(struct obstack);
193 obstack_init(res->obst);
195 res->phase_state = phase_building;
196 irg_set_nloc(res, n_loc);
198 /* descriptions will be allocated on demand */
199 res->loc_descriptions = NULL;
201 res->visited = 0; /* visited flag, for the ir walker */
202 res->block_visited = 0; /* visited flag, for the 'block'-walker */
204 res->extbb_obst = NULL;
206 res->last_node_idx = 0;
208 res->value_table = new_identities(); /* value table for global value
209 numbering for optimizing use in iropt.c */
212 res->inline_property = irg_inline_any;
213 res->additional_properties = mtp_property_inherited; /* inherited from type */
215 res->irg_pinned_state = op_pin_state_pinned;
216 res->outs_state = outs_none;
217 res->dom_state = dom_none;
218 res->pdom_state = dom_none;
219 res->typeinfo_state = ir_typeinfo_none;
220 set_irp_typeinfo_inconsistent(); /* there is a new graph with typeinfo_none. */
221 res->callee_info_state = irg_callee_info_none;
222 res->loopinfo_state = loopinfo_none;
223 res->class_cast_state = ir_class_casts_transitive;
224 res->extblk_state = ir_extblk_info_none;
225 res->execfreq_state = exec_freq_none;
226 res->fp_model = fp_model_precise;
227 res->entity_usage_state = ir_entity_usage_not_computed;
228 res->mem_disambig_opt = aa_opt_inherited;
230 /*-- Type information for the procedure of the graph --*/
232 set_entity_irg(ent, res);
234 /*-- a class type so that it can contain "inner" methods as in Pascal. --*/
235 res->frame_type = new_type_frame();
237 /* the Anchor node must be created first */
238 res->anchor = new_Anchor(res);
240 /*-- Nodes needed in every graph --*/
241 set_irg_end_block (res, new_immBlock());
242 set_cur_block(get_irg_end_block(res));
244 set_irg_end (res, end);
245 set_irg_end_reg (res, end);
246 set_irg_end_except(res, end);
248 start_block = new_immBlock();
249 set_cur_block(start_block);
250 set_irg_start_block(res, start_block);
251 bad = new_ir_node(NULL, res, start_block, op_Bad, mode_T, 0, NULL);
252 bad->attr.irg.irg = res;
253 set_irg_bad (res, bad);
254 set_irg_no_mem (res, new_ir_node(NULL, res, start_block, op_NoMem, mode_M, 0, NULL));
256 set_irg_start (res, start);
258 /* Proj results of start node */
259 projX = new_Proj(start, mode_X, pn_Start_X_initial_exec);
260 set_irg_initial_exec (res, projX);
261 set_irg_frame (res, new_Proj(start, mode_P_data, pn_Start_P_frame_base));
262 set_irg_tls (res, new_Proj(start, mode_P_data, pn_Start_P_tls));
263 set_irg_args (res, new_Proj(start, mode_T, pn_Start_T_args));
264 initial_mem = new_Proj(start, mode_M, pn_Start_M);
265 set_irg_initial_mem(res, initial_mem);
267 set_store(initial_mem);
269 res->index = get_irp_new_irg_idx();
271 res->graph_nr = get_irp_new_node_nr();
274 mature_immBlock(res->current_block);
276 /*-- Make a block to start with --*/
277 first_block = new_immBlock();
278 set_cur_block(first_block);
279 add_immBlock_pred(first_block, projX);
281 res->method_execution_frequency = -1.0;
282 res->estimated_node_count = 0;
287 ir_graph *new_ir_graph(ir_entity *ent, int n_loc) {
288 ir_graph *res = new_r_ir_graph(ent, n_loc);
289 add_irp_irg(res); /* remember this graph global. */
293 /* Make a rudimentary IR graph for the constant code.
294 Must look like a correct irg, spare everything else. */
295 ir_graph *new_const_code_irg(void)
297 ir_graph *res = alloc_graph();
304 ir_node *start_block;
307 /* inform statistics here, as blocks will be already build on this graph */
308 hook_new_graph(res, NULL);
310 current_ir_graph = res;
311 res->n_loc = 1; /* Only the memory. */
312 res->visited = 0; /* visited flag, for the ir walker */
313 res->block_visited = 0; /* visited flag, for the 'block'-walker */
314 res->obst = XMALLOC(struct obstack);
315 obstack_init(res->obst);
316 res->extbb_obst = NULL;
318 res->last_node_idx = 0;
320 res->phase_state = phase_building;
321 res->irg_pinned_state = op_pin_state_pinned;
322 res->extblk_state = ir_extblk_info_none;
323 res->fp_model = fp_model_precise;
325 /* value table for global value numbering for optimizing use in iropt.c */
326 res->value_table = new_identities();
328 res->frame_type = NULL;
330 /* the Anchor node must be created first */
331 res->anchor = new_Anchor(res);
333 /* -- The end block -- */
334 end_block = new_immBlock();
335 set_irg_end_block(res, end_block);
336 set_cur_block(end_block);
338 set_irg_end (res, end);
339 set_irg_end_reg (res, end);
340 set_irg_end_except(res, end);
341 mature_immBlock(end_block);
343 /* -- The start block -- */
344 start_block = new_immBlock();
345 set_cur_block(start_block);
346 set_irg_start_block(res, start_block);
347 bad = new_ir_node(NULL, res, start_block, op_Bad, mode_T, 0, NULL);
348 bad->attr.irg.irg = res;
349 set_irg_bad(res, bad);
350 no_mem = new_ir_node(NULL, res, start_block, op_NoMem, mode_M, 0, NULL);
351 set_irg_no_mem(res, no_mem);
353 set_irg_start(res, start);
355 /* Proj results of start node */
356 set_irg_initial_mem(res, new_Proj(start, mode_M, pn_Start_M));
357 projX = new_Proj(start, mode_X, pn_Start_X_initial_exec);
358 mature_immBlock(start_block);
360 body_block = new_immBlock();
361 add_immBlock_pred(body_block, projX);
362 mature_immBlock(body_block); /* mature the 'body' block for expressions */
363 set_cur_block(body_block);
365 /* Set the visited flag high enough that the blocks will never be visited. */
366 set_irn_visited(body_block, -1);
367 set_Block_block_visited(body_block, -1);
368 set_Block_block_visited(start_block, -1);
369 set_irn_visited(start_block, -1);
370 set_irn_visited(bad, -1);
371 set_irn_visited(no_mem, -1);
373 res->phase_state = phase_high;
379 * Pre-Walker: Copies blocks and nodes from the original method graph
380 * to the copied graph.
382 * @param n A node from the original method graph.
383 * @param env The copied graph.
385 static void copy_all_nodes(ir_node *n, void *env) {
387 ir_op *op = get_irn_op(n);
390 nn = new_ir_node(get_irn_dbg_info(n),
392 NULL, /* no block yet, will be set later */
399 /* Copy the attributes. These might point to additional data. If this
400 was allocated on the old obstack the pointers now are dangling. This
401 frees e.g. the memory of the graph_arr allocated in new_immBlock. */
402 copy_node_attr(n, nn);
403 new_backedge_info(nn);
406 /* fix the irg for Blocks: as Bad nodes are NOT copied, no
409 nn->attr.block.irg.irg = irg;
411 /* fix access to entities on the stack frame */
413 ir_entity *ent = get_Sel_entity(nn);
414 ir_type *tp = get_entity_owner(ent);
416 if (is_frame_type(tp)) {
417 /* replace by the copied entity */
418 ent = get_entity_link(ent);
420 assert(is_entity(ent));
421 assert(get_entity_owner(ent) == get_irg_frame_type(irg));
422 set_Sel_entity(nn, ent);
428 * Post-walker: Set the predecessors of the copied nodes.
429 * The copied nodes are set as link of their original nodes. The links of
430 * "irn" predecessors are the predecessors of copied node.
432 static void set_all_preds(ir_node *irn, void *env) {
437 nn = get_irn_link(irn);
440 ir_node *mbh = get_Block_MacroBlock(irn);
441 set_Block_MacroBlock(nn, get_irn_link(mbh));
442 for (i = get_Block_n_cfgpreds(irn) - 1; i >= 0; i--) {
443 pred = get_Block_cfgpred(irn, i);
444 set_Block_cfgpred(nn, i, get_irn_link(pred));
447 /* First we set the block our copy if it is not a block.*/
448 set_nodes_block(nn, get_irn_link(get_nodes_block(irn)));
449 for (i = get_irn_arity(irn) - 1; i >= 0; i--) {
450 pred = get_irn_n(irn, i);
451 set_irn_n(nn, i, get_irn_link(pred));
456 #define NN(irn) get_irn_link(irn)
459 * Create a new graph that is a copy of a given one.
461 ir_graph *create_irg_copy(ir_graph *irg) {
467 res->visited = 0; /* visited flag, for the ir walker */
468 res->block_visited = 0; /* visited flag, for the 'block'-walker */
469 res->obst = XMALLOC(struct obstack);
470 obstack_init(res->obst);
471 res->extbb_obst = NULL;
473 res->last_node_idx = 0;
475 res->phase_state = irg->phase_state;
476 res->irg_pinned_state = irg->irg_pinned_state;
477 res->extblk_state = ir_extblk_info_none;
478 res->fp_model = irg->fp_model;
480 res->value_table = new_identities();
482 /* clone the frame type here for safety */
483 irp_reserve_resources(irp, IR_RESOURCE_ENTITY_LINK);
484 res->frame_type = clone_frame_type(irg->frame_type);
486 res->phase_state = irg->phase_state;
488 ir_reserve_resources(irg, IR_RESOURCE_IRN_LINK);
490 /* copy all nodes from the graph irg to the new graph res */
491 irg_walk_anchors(irg, copy_all_nodes, set_all_preds, res);
493 /* copy the Anchor node */
494 res->anchor = NN(irg->anchor);
496 /* -- The end block -- */
497 set_irg_end_block (res, NN(get_irg_end_block(irg)));
498 set_irg_end (res, NN(get_irg_end(irg)));
499 set_irg_end_reg (res, NN(get_irg_end_reg(irg)));
500 set_irg_end_except(res, NN(get_irg_end_except(irg)));
502 /* -- The start block -- */
503 set_irg_start_block(res, NN(get_irg_start_block(irg)));
504 set_irg_bad (res, NN(get_irg_bad(irg)));
505 set_irg_no_mem (res, NN(get_irg_no_mem(irg)));
506 set_irg_start (res, NN(get_irg_start(irg)));
508 /* Proj results of start node */
509 set_irg_initial_mem(res, NN(get_irg_initial_mem(irg)));
511 /* Copy the node count estimation. Would be strange if this
512 is different from the original one. */
513 res->estimated_node_count = irg->estimated_node_count;
515 ir_free_resources(irg, IR_RESOURCE_IRN_LINK);
516 irp_free_resources(irp, IR_RESOURCE_ENTITY_LINK);
523 /* Frees the passed irgraph.
524 Deallocates all nodes in this graph and the ir_graph structure.
525 Sets the field irgraph in the corresponding entity to NULL.
526 Does not remove the irgraph from the list in irprog (requires
527 inefficient search, call remove_irp_irg by hand).
528 Does not free types, entities or modes that are used only by this
529 graph, nor the entity standing for this graph. */
530 void free_ir_graph(ir_graph *irg)
532 assert(is_ir_graph(irg));
534 edges_deactivate(irg);
536 hook_free_graph(irg);
537 if (irg->outs_state != outs_none)
540 free_type(irg->frame_type);
541 if (irg->value_table)
542 del_identities(irg->value_table);
544 set_entity_irg(irg->ent, NULL); /* not set in const code irg */
547 free_End(get_irg_end(irg));
548 obstack_free(irg->obst,NULL);
550 if (irg->loc_descriptions)
551 free(irg->loc_descriptions);
556 /* access routines for all ir_graph attributes:
558 {attr type} get_irg_{attribute name} (ir_graph *irg);
559 void set_irg_{attr name} (ir_graph *irg, {attr type} {attr}); */
562 (is_ir_graph)(const void *thing) {
563 return _is_ir_graph(thing);
567 /* Outputs a unique number for this node */
568 long get_irg_graph_nr(const ir_graph *irg) {
569 return irg->graph_nr;
572 long get_irg_graph_nr(const ir_graph *irg) {
573 return PTR_TO_INT(irg);
577 int get_irg_idx(const ir_graph *irg) {
581 ir_node *(get_idx_irn)(ir_graph *irg, unsigned idx) {
582 return _get_idx_irn(irg, idx);
586 (get_irg_start_block)(const ir_graph *irg) {
587 return _get_irg_start_block(irg);
591 (set_irg_start_block)(ir_graph *irg, ir_node *node) {
592 _set_irg_start_block(irg, node);
596 (get_irg_start)(const ir_graph *irg) {
597 return _get_irg_start(irg);
601 (set_irg_start)(ir_graph *irg, ir_node *node) {
602 _set_irg_start(irg, node);
606 (get_irg_end_block)(const ir_graph *irg) {
607 return _get_irg_end_block(irg);
611 (set_irg_end_block)(ir_graph *irg, ir_node *node) {
612 _set_irg_end_block(irg, node);
616 (get_irg_end)(const ir_graph *irg) {
617 return _get_irg_end(irg);
621 (set_irg_end)(ir_graph *irg, ir_node *node) {
622 _set_irg_end(irg, node);
626 (get_irg_end_reg)(const ir_graph *irg) {
627 return _get_irg_end_reg(irg);
631 (set_irg_end_reg)(ir_graph *irg, ir_node *node) {
632 _set_irg_end_reg(irg, node);
636 (get_irg_end_except)(const ir_graph *irg) {
637 return _get_irg_end_except(irg);
641 (set_irg_end_except)(ir_graph *irg, ir_node *node) {
642 assert(get_irn_op(node) == op_EndExcept || is_End(node));
643 _set_irg_end_except(irg, node);
647 (get_irg_initial_exec)(const ir_graph *irg) {
648 return _get_irg_initial_exec(irg);
652 (set_irg_initial_exec)(ir_graph *irg, ir_node *node) {
653 _set_irg_initial_exec(irg, node);
657 (get_irg_frame)(const ir_graph *irg) {
658 return _get_irg_frame(irg);
662 (set_irg_frame)(ir_graph *irg, ir_node *node) {
663 _set_irg_frame(irg, node);
667 (get_irg_tls)(const ir_graph *irg) {
668 return _get_irg_tls(irg);
672 (set_irg_tls)(ir_graph *irg, ir_node *node) {
673 _set_irg_tls(irg, node);
677 (get_irg_initial_mem)(const ir_graph *irg) {
678 return _get_irg_initial_mem(irg);
682 (set_irg_initial_mem)(ir_graph *irg, ir_node *node) {
683 _set_irg_initial_mem(irg, node);
687 (get_irg_args)(const ir_graph *irg) {
688 return _get_irg_args(irg);
692 (set_irg_args)(ir_graph *irg, ir_node *node) {
693 _set_irg_args(irg, node);
697 (get_irg_bad)(const ir_graph *irg) {
698 return _get_irg_bad(irg);
702 (set_irg_bad)(ir_graph *irg, ir_node *node) {
703 _set_irg_bad(irg, node);
707 (get_irg_no_mem)(const ir_graph *irg) {
708 return _get_irg_no_mem(irg);
712 (set_irg_no_mem)(ir_graph *irg, ir_node *node) {
713 _set_irg_no_mem(irg, node);
717 (get_irg_current_block)(const ir_graph *irg) {
718 return _get_irg_current_block(irg);
722 (set_irg_current_block)(ir_graph *irg, ir_node *node) {
723 _set_irg_current_block(irg, node);
727 (get_irg_entity)(const ir_graph *irg) {
728 return _get_irg_entity(irg);
732 (set_irg_entity)(ir_graph *irg, ir_entity *ent) {
733 _set_irg_entity(irg, ent);
737 (get_irg_frame_type)(ir_graph *irg) {
738 return _get_irg_frame_type(irg);
742 (set_irg_frame_type)(ir_graph *irg, ir_type *ftp) {
743 _set_irg_frame_type(irg, ftp);
746 /* Returns the value parameter type of an IR graph. */
747 ir_type *get_irg_value_param_type(ir_graph *irg) {
748 ir_entity *ent = get_irg_entity(irg);
749 ir_type *mtp = get_entity_type(ent);
750 return get_method_value_param_type(mtp);
754 get_irg_n_locs(ir_graph *irg) {
755 if (get_opt_precise_exc_context())
756 return irg->n_loc - 1 - 1;
758 return irg->n_loc - 1;
762 set_irg_n_loc(ir_graph *irg, int n_loc) {
763 if (get_opt_precise_exc_context())
764 irg->n_loc = n_loc + 1 + 1;
766 irg->n_loc = n_loc + 1;
771 /* Returns the obstack associated with the graph. */
773 (get_irg_obstack)(const ir_graph *irg) {
774 return _get_irg_obstack(irg);
778 * Returns true if the node n is allocated on the storage of graph irg.
780 * Implementation is GLIBC specific as is uses the internal _obstack_chunk implementation.
782 int node_is_in_irgs_storage(ir_graph *irg, ir_node *n) {
783 struct _obstack_chunk *p;
786 * checks weather the ir_node pointer is on the obstack.
787 * A more sophisticated check would test the "whole" ir_node
789 for (p = irg->obst->chunk; p; p = p->prev) {
790 if (((char *)p->contents <= (char *)n) && ((char *)n < (char *)p->limit))
798 (get_irg_phase_state)(const ir_graph *irg) {
799 return _get_irg_phase_state(irg);
803 (set_irg_phase_state)(ir_graph *irg, irg_phase_state state) {
804 _set_irg_phase_state(irg, state);
808 (get_irg_pinned)(const ir_graph *irg) {
809 return _get_irg_pinned(irg);
813 (get_irg_outs_state)(const ir_graph *irg) {
814 return _get_irg_outs_state(irg);
818 (set_irg_outs_inconsistent)(ir_graph *irg) {
819 _set_irg_outs_inconsistent(irg);
823 (get_irg_extblk_state)(const ir_graph *irg) {
824 return _get_irg_extblk_state(irg);
828 (set_irg_extblk_inconsistent)(ir_graph *irg) {
829 _set_irg_extblk_inconsistent(irg);
833 (get_irg_dom_state)(const ir_graph *irg) {
834 return _get_irg_dom_state(irg);
838 (get_irg_postdom_state)(const ir_graph *irg) {
839 return _get_irg_postdom_state(irg);
843 (set_irg_doms_inconsistent)(ir_graph *irg) {
844 _set_irg_doms_inconsistent(irg);
848 (get_irg_loopinfo_state)(const ir_graph *irg) {
849 return _get_irg_loopinfo_state(irg);
853 (set_irg_loopinfo_state)(ir_graph *irg, irg_loopinfo_state s) {
854 _set_irg_loopinfo_state(irg, s);
858 (set_irg_loopinfo_inconsistent)(ir_graph *irg) {
859 _set_irg_loopinfo_inconsistent(irg);
862 void set_irp_loopinfo_inconsistent(void) {
864 for (i = get_irp_n_irgs() - 1; i >= 0; --i) {
865 set_irg_loopinfo_inconsistent(get_irp_irg(i));
872 (set_irg_pinned)(ir_graph *irg, op_pin_state p) {
873 _set_irg_pinned(irg, p);
876 irg_callee_info_state
877 (get_irg_callee_info_state)(const ir_graph *irg) {
878 return _get_irg_callee_info_state(irg);
882 (set_irg_callee_info_state)(ir_graph *irg, irg_callee_info_state s) {
883 _set_irg_callee_info_state(irg, s);
887 (get_irg_inline_property)(const ir_graph *irg) {
888 return _get_irg_inline_property(irg);
892 (set_irg_inline_property)(ir_graph *irg, irg_inline_property s) {
893 _set_irg_inline_property(irg, s);
897 (get_irg_additional_properties)(const ir_graph *irg) {
898 return _get_irg_additional_properties(irg);
902 (set_irg_additional_properties)(ir_graph *irg, unsigned property_mask) {
903 _set_irg_additional_properties(irg, property_mask);
907 (set_irg_additional_property)(ir_graph *irg, mtp_additional_property flag) {
908 _set_irg_additional_property(irg, flag);
912 (set_irg_link)(ir_graph *irg, void *thing) {
913 _set_irg_link(irg, thing);
917 (get_irg_link)(const ir_graph *irg) {
918 return _get_irg_link(irg);
922 (get_irg_visited)(const ir_graph *irg) {
923 return _get_irg_visited(irg);
926 /** maximum visited flag content of all ir_graph visited fields. */
927 static ir_visited_t max_irg_visited = 0;
929 void set_irg_visited(ir_graph *irg, ir_visited_t visited)
931 irg->visited = visited;
932 if (irg->visited > max_irg_visited) {
933 max_irg_visited = irg->visited;
937 void inc_irg_visited(ir_graph *irg)
940 if (irg->visited > max_irg_visited) {
941 max_irg_visited = irg->visited;
945 ir_visited_t get_max_irg_visited(void)
947 return max_irg_visited;
950 void set_max_irg_visited(int val)
952 max_irg_visited = val;
955 ir_visited_t inc_max_irg_visited(void)
959 for(i = 0; i < get_irp_n_irgs(); i++)
960 assert(max_irg_visited >= get_irg_visited(get_irp_irg(i)));
962 return ++max_irg_visited;
966 (get_irg_block_visited)(const ir_graph *irg) {
967 return _get_irg_block_visited(irg);
971 (set_irg_block_visited)(ir_graph *irg, ir_visited_t visited) {
972 _set_irg_block_visited(irg, visited);
976 (inc_irg_block_visited)(ir_graph *irg) {
977 _inc_irg_block_visited(irg);
980 /* Return the floating point model of this graph. */
981 unsigned (get_irg_fp_model)(const ir_graph *irg) {
982 return _get_irg_fp_model(irg);
985 /* Sets the floating point model for this graph. */
986 void set_irg_fp_model(ir_graph *irg, unsigned model) {
987 irg->fp_model = model;
991 * walker Start->End: places Proj nodes into the same block
992 * as it's predecessors
997 static void normalize_proj_walker(ir_node *n, void *env) {
1000 ir_node *pred = get_Proj_pred(n);
1001 ir_node *block = get_nodes_block(pred);
1003 set_nodes_block(n, block);
1007 /* move Proj nodes into the same block as its predecessors */
1008 void normalize_proj_nodes(ir_graph *irg) {
1009 irg_walk_graph(irg, NULL, normalize_proj_walker, NULL);
1010 set_irg_outs_inconsistent(irg);
1013 /* set a description for local value n */
1014 void set_irg_loc_description(ir_graph *irg, int n, void *description) {
1015 assert(0 <= n && n < irg->n_loc);
1017 if (! irg->loc_descriptions)
1018 irg->loc_descriptions = XMALLOCNZ(void*, irg->n_loc);
1020 irg->loc_descriptions[n] = description;
1023 /* get the description for local value n */
1024 void *get_irg_loc_description(ir_graph *irg, int n) {
1025 assert(0 <= n && n < irg->n_loc);
1026 return irg->loc_descriptions ? irg->loc_descriptions[n] : NULL;
1030 void ir_reserve_resources(ir_graph *irg, ir_resources_t resources) {
1031 assert((resources & ~IR_RESOURCE_LOCAL_MASK) == 0);
1032 assert((irg->reserved_resources & resources) == 0);
1033 irg->reserved_resources |= resources;
1036 void ir_free_resources(ir_graph *irg, ir_resources_t resources) {
1037 assert((irg->reserved_resources & resources) == resources);
1038 irg->reserved_resources &= ~resources;
1041 ir_resources_t ir_resources_reserved(const ir_graph *irg) {
1042 return irg->reserved_resources;
1046 /* Returns a estimated node count of the irg. */
1047 unsigned (get_irg_estimated_node_cnt)(const ir_graph *irg) {
1048 return _get_irg_estimated_node_cnt(irg);
1051 /* Returns the last irn index for this graph. */
1052 unsigned get_irg_last_idx(const ir_graph *irg) {
1053 return irg->last_node_idx;
1056 /* register additional space in an IR graph */
1057 size_t register_additional_graph_data(size_t size) {
1058 assert(!forbid_new_data && "Too late to register additional node data");
1060 if (forbid_new_data)
1063 return additional_graph_data_size += size;
1066 void (set_irg_state)(ir_graph *irg, ir_graph_state_t state)
1068 _set_irg_state(irg, state);
1071 void (clear_irg_state)(ir_graph *irg, ir_graph_state_t state)
1073 _clear_irg_state(irg, state);
1076 int (is_irg_state)(const ir_graph *irg, ir_graph_state_t state)
1078 return _is_irg_state(irg, state);