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[official-gcc.git] / gcc / sel-sched-dump.c
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1 /* Instruction scheduling pass. Log dumping infrastructure.
2 Copyright (C) 2006-2021 Free Software Foundation, Inc.
4 This file is part of GCC.
6 GCC is free software; you can redistribute it and/or modify it under
7 the terms of the GNU General Public License as published by the Free
8 Software Foundation; either version 3, or (at your option) any later
9 version.
11 GCC is distributed in the hope that it will be useful, but WITHOUT ANY
12 WARRANTY; without even the implied warranty of MERCHANTABILITY or
13 FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
14 for more details.
16 You should have received a copy of the GNU General Public License
17 along with GCC; see the file COPYING3. If not see
18 <http://www.gnu.org/licenses/>. */
20 #include "config.h"
21 #include "system.h"
22 #include "coretypes.h"
23 #include "backend.h"
24 #include "rtl.h"
25 #include "df.h"
26 #include "insn-attr.h"
27 #include "cselib.h"
29 #ifdef INSN_SCHEDULING
30 #include "regset.h"
31 #include "sched-int.h"
32 #include "cfgloop.h"
33 #include "sel-sched-ir.h"
34 #include "sel-sched-dump.h"
35 #include "print-rtl.h"
38 /* These variables control high-level pretty printing. */
39 static int sel_dump_cfg_flags = SEL_DUMP_CFG_FLAGS;
40 static int sel_debug_cfg_flags = SEL_DUMP_CFG_FLAGS;
42 /* True when a cfg should be dumped. */
43 static bool sel_dump_cfg_p;
45 /* Variables that are used to build the cfg dump file name. */
46 static const char * const sel_debug_cfg_root = "./";
47 static const char * const sel_debug_cfg_root_postfix_default = "";
48 static const char *sel_debug_cfg_root_postfix = "";
49 static int sel_dump_cfg_fileno = -1;
50 static int sel_debug_cfg_fileno = -1;
52 /* When this flag is on, we are dumping to the .dot file.
53 When it is off, we are dumping to log.
54 This is useful to differentiate formatting between log and .dot
55 files. */
56 bool sched_dump_to_dot_p = false;
58 /* Controls how insns from a fence list should be dumped. */
59 static int dump_flist_insn_flags = (DUMP_INSN_UID | DUMP_INSN_BBN
60 | DUMP_INSN_SEQNO);
63 /* The variable used to hold the value of sched_dump when temporarily
64 switching dump output to the other source, e.g. the .dot file. */
65 static FILE *saved_sched_dump = NULL;
67 /* Switch sched_dump to TO. It must not be called twice. */
68 static void
69 switch_dump (FILE *to)
71 gcc_assert (saved_sched_dump == NULL);
73 saved_sched_dump = sched_dump;
74 sched_dump = to;
77 /* Restore previously switched dump. */
78 static void
79 restore_dump (void)
81 sched_dump = saved_sched_dump;
82 saved_sched_dump = NULL;
86 /* Functions for dumping instructions, av sets, and exprs. */
88 /* Default flags for dumping insns. */
89 static int dump_insn_rtx_flags = DUMP_INSN_RTX_UID | DUMP_INSN_RTX_PATTERN;
91 /* Default flags for dumping vinsns. */
92 static int dump_vinsn_flags = (DUMP_VINSN_INSN_RTX | DUMP_VINSN_TYPE
93 | DUMP_VINSN_COUNT);
95 /* Default flags for dumping expressions. */
96 static int dump_expr_flags = DUMP_EXPR_ALL;
98 /* Default flags for dumping insns when debugging. */
99 static int debug_insn_rtx_flags = DUMP_INSN_RTX_ALL;
101 /* Default flags for dumping vinsns when debugging. */
102 static int debug_vinsn_flags = DUMP_VINSN_ALL;
104 /* Default flags for dumping expressions when debugging. */
105 static int debug_expr_flags = DUMP_EXPR_ALL;
107 /* Controls how an insn from stream should be dumped when debugging. */
108 static int debug_insn_flags = DUMP_INSN_ALL;
110 /* Print an rtx X. */
111 void
112 sel_print_rtl (rtx x)
114 print_rtl_single (sched_dump, x);
117 /* Dump insn INSN honoring FLAGS. */
118 void
119 dump_insn_rtx_1 (rtx insn, int flags)
121 int all;
123 /* flags == -1 also means dumping all. */
124 all = (flags & 1);
125 if (all)
126 flags |= DUMP_INSN_RTX_ALL;
128 sel_print ("(");
130 if (flags & DUMP_INSN_RTX_UID)
131 sel_print ("%d;", INSN_UID (insn));
133 if (flags & DUMP_INSN_RTX_PATTERN)
134 sel_print ("%s;", str_pattern_slim (PATTERN (insn)));
136 if (flags & DUMP_INSN_RTX_BBN)
138 basic_block bb = BLOCK_FOR_INSN (insn);
140 sel_print ("bb:%d;", bb != NULL ? bb->index : -1);
143 sel_print (")");
147 /* Dump INSN with default flags. */
148 void
149 dump_insn_rtx (rtx insn)
151 dump_insn_rtx_1 (insn, dump_insn_rtx_flags);
155 /* Dump INSN to stderr. */
156 DEBUG_FUNCTION void
157 debug_insn_rtx (rtx insn)
159 switch_dump (stderr);
160 dump_insn_rtx_1 (insn, debug_insn_rtx_flags);
161 sel_print ("\n");
162 restore_dump ();
165 /* Dump vinsn VI honoring flags. */
166 void
167 dump_vinsn_1 (vinsn_t vi, int flags)
169 int all;
171 /* flags == -1 also means dumping all. */
172 all = flags & 1;
173 if (all)
174 flags |= DUMP_VINSN_ALL;
176 sel_print ("(");
178 if (flags & DUMP_VINSN_INSN_RTX)
179 dump_insn_rtx_1 (VINSN_INSN_RTX (vi), dump_insn_rtx_flags | all);
181 if (flags & DUMP_VINSN_TYPE)
182 sel_print ("type:%s;", GET_RTX_NAME (VINSN_TYPE (vi)));
184 if (flags & DUMP_VINSN_COUNT)
185 sel_print ("count:%d;", VINSN_COUNT (vi));
187 if (flags & DUMP_VINSN_COST)
189 int cost = vi->cost;
191 if (cost != -1)
192 sel_print ("cost:%d;", cost);
195 sel_print (")");
198 /* Dump vinsn VI with default flags. */
199 void
200 dump_vinsn (vinsn_t vi)
202 dump_vinsn_1 (vi, dump_vinsn_flags);
205 DEBUG_FUNCTION void
206 debug (vinsn_def &ref)
208 switch_dump (stderr);
209 dump_vinsn_1 (&ref, dump_vinsn_flags);
210 sel_print ("\n");
211 restore_dump ();
214 DEBUG_FUNCTION void
215 debug (vinsn_def *ptr)
217 if (ptr)
218 debug (*ptr);
219 else
220 fprintf (stderr, "<nil>\n");
223 DEBUG_FUNCTION void
224 debug_verbose (vinsn_def &ref)
226 switch_dump (stderr);
227 dump_vinsn_1 (&ref, debug_vinsn_flags);
228 sel_print ("\n");
229 restore_dump ();
232 DEBUG_FUNCTION void
233 debug_verbose (vinsn_def *ptr)
235 if (ptr)
236 debug (*ptr);
237 else
238 fprintf (stderr, "<nil>\n");
241 /* Dump vinsn VI to stderr. */
242 DEBUG_FUNCTION void
243 debug_vinsn (vinsn_t vi)
245 switch_dump (stderr);
246 dump_vinsn_1 (vi, debug_vinsn_flags);
247 sel_print ("\n");
248 restore_dump ();
251 /* Dump EXPR honoring flags. */
252 void
253 dump_expr_1 (expr_t expr, int flags)
255 int all;
257 /* flags == -1 also means dumping all. */
258 all = flags & 1;
259 if (all)
260 flags |= DUMP_EXPR_ALL;
262 sel_print ("[");
264 if (flags & DUMP_EXPR_VINSN)
265 dump_vinsn_1 (EXPR_VINSN (expr), dump_vinsn_flags | all);
267 if (flags & DUMP_EXPR_SPEC)
269 int spec = EXPR_SPEC (expr);
271 if (spec != 0)
272 sel_print ("spec:%d;", spec);
275 if (flags & DUMP_EXPR_USEFULNESS)
277 int use = EXPR_USEFULNESS (expr);
279 if (use != REG_BR_PROB_BASE)
280 sel_print ("use:%d;", use);
283 if (flags & DUMP_EXPR_PRIORITY)
284 sel_print ("prio:%d;", EXPR_PRIORITY (expr));
286 if (flags & DUMP_EXPR_SCHED_TIMES)
288 int times = EXPR_SCHED_TIMES (expr);
290 if (times != 0)
291 sel_print ("times:%d;", times);
294 if (flags & DUMP_EXPR_SPEC_DONE_DS)
296 ds_t spec_done_ds = EXPR_SPEC_DONE_DS (expr);
298 if (spec_done_ds != 0)
299 sel_print ("ds:%d;", spec_done_ds);
302 if (flags & DUMP_EXPR_ORIG_BB)
304 int orig_bb = EXPR_ORIG_BB_INDEX (expr);
306 if (orig_bb != 0)
307 sel_print ("orig_bb:%d;", orig_bb);
310 if (EXPR_TARGET_AVAILABLE (expr) < 1)
311 sel_print ("target:%d;", EXPR_TARGET_AVAILABLE (expr));
312 sel_print ("]");
315 /* Dump expression EXPR with default flags. */
316 void
317 dump_expr (expr_t expr)
319 dump_expr_1 (expr, dump_expr_flags);
322 /* Dump expression EXPR to stderr. */
323 DEBUG_FUNCTION void
324 debug_expr (expr_t expr)
326 switch_dump (stderr);
327 dump_expr_1 (expr, debug_expr_flags);
328 sel_print ("\n");
329 restore_dump ();
332 /* Dump expression REF. */
334 DEBUG_FUNCTION void
335 debug (expr_def &ref)
337 switch_dump (stderr);
338 dump_expr_1 (&ref, 0);
339 sel_print ("\n");
340 restore_dump ();
343 DEBUG_FUNCTION void
344 debug (expr_def *ptr)
346 if (ptr)
347 debug (*ptr);
348 else
349 fprintf (stderr, "<nil>\n");
352 /* Dump expression REF verbosely. */
354 DEBUG_FUNCTION void
355 debug_verbose (expr_def &ref)
357 switch_dump (stderr);
358 dump_expr_1 (&ref, DUMP_EXPR_ALL);
359 sel_print ("\n");
360 restore_dump ();
363 DEBUG_FUNCTION void
364 debug_verbose (expr_def *ptr)
366 if (ptr)
367 debug_verbose (*ptr);
368 else
369 fprintf (stderr, "<nil>\n");
372 /* Dump insn I honoring FLAGS. */
373 void
374 dump_insn_1 (insn_t i, int flags)
376 int all;
378 all = flags & 1;
379 if (all)
380 flags |= DUMP_INSN_ALL;
382 if (!sched_dump_to_dot_p)
383 sel_print ("(");
385 if (flags & DUMP_INSN_EXPR)
387 dump_expr_1 (INSN_EXPR (i), dump_expr_flags | all);
388 sel_print (";");
390 else if (flags & DUMP_INSN_PATTERN)
392 dump_insn_rtx_1 (i, DUMP_INSN_RTX_PATTERN | all);
393 sel_print (";");
395 else if (flags & DUMP_INSN_UID)
396 sel_print ("uid:%d;", INSN_UID (i));
398 if (flags & DUMP_INSN_SEQNO)
399 sel_print ("seqno:%d;", INSN_SEQNO (i));
401 if (flags & DUMP_INSN_SCHED_CYCLE)
403 int cycle = INSN_SCHED_CYCLE (i);
405 if (cycle != 0)
406 sel_print ("cycle:%d;", cycle);
409 if (!sched_dump_to_dot_p)
410 sel_print (")");
413 /* Dump insn I with default flags. */
414 void
415 dump_insn (insn_t i)
417 dump_insn_1 (i, DUMP_INSN_EXPR | DUMP_INSN_SCHED_CYCLE);
420 /* Dump INSN to stderr. */
421 DEBUG_FUNCTION void
422 debug_insn (insn_t insn)
424 switch_dump (stderr);
425 dump_insn_1 (insn, debug_insn_flags);
426 sel_print ("\n");
427 restore_dump ();
430 /* Dumps av_set AV. */
431 void
432 dump_av_set (av_set_t av)
434 av_set_iterator i;
435 expr_t expr;
437 if (!sched_dump_to_dot_p)
438 sel_print ("{");
440 FOR_EACH_EXPR (expr, i, av)
442 dump_expr (expr);
443 if (!sched_dump_to_dot_p)
444 sel_print (" ");
445 else
446 sel_print ("\n");
449 if (!sched_dump_to_dot_p)
450 sel_print ("}");
453 /* Dumps lvset LV. */
454 void
455 dump_lv_set (regset lv)
457 sel_print ("{");
459 /* This code was adapted from cfg.c: dump_regset (). */
460 if (lv == NULL)
461 sel_print ("nil");
462 else
464 unsigned i;
465 reg_set_iterator rsi;
466 int count = 0;
468 EXECUTE_IF_SET_IN_REG_SET (lv, 0, i, rsi)
470 sel_print (" %d", i);
471 if (i < FIRST_PSEUDO_REGISTER)
473 sel_print (" [%s]", reg_names[i]);
474 ++count;
477 ++count;
479 if (sched_dump_to_dot_p && count == 12)
481 count = 0;
482 sel_print ("\n");
487 sel_print ("}\n");
490 /* Dumps a list of instructions pointed to by P. */
491 static void
492 dump_ilist (ilist_t p)
494 while (p)
496 dump_insn (ILIST_INSN (p));
497 p = ILIST_NEXT (p);
501 /* Dumps a list of boundaries pointed to by BNDS. */
502 void
503 dump_blist (blist_t bnds)
505 for (; bnds; bnds = BLIST_NEXT (bnds))
507 bnd_t bnd = BLIST_BND (bnds);
509 sel_print ("[to: %d; ptr: ", INSN_UID (BND_TO (bnd)));
510 dump_ilist (BND_PTR (bnd));
511 sel_print ("] ");
515 /* Dumps a list of fences pointed to by L. */
516 void
517 dump_flist (flist_t l)
519 while (l)
521 dump_insn_1 (FENCE_INSN (FLIST_FENCE (l)), dump_flist_insn_flags);
522 sel_print (" ");
523 l = FLIST_NEXT (l);
527 /* Dumps an insn vector SUCCS. */
528 void
529 dump_insn_vector (rtx_vec_t succs)
531 for (rtx_insn *succ : succs)
532 if (succ)
533 dump_insn (succ);
534 else
535 sel_print ("NULL ");
538 /* Dumps a hard reg set SET to FILE using PREFIX. */
539 static void
540 print_hard_reg_set (FILE *file, const char *prefix, HARD_REG_SET set)
542 int i;
544 fprintf (file, "%s{ ", prefix);
545 for (i = 0; i < FIRST_PSEUDO_REGISTER; i++)
547 if (TEST_HARD_REG_BIT (set, i))
548 fprintf (file, "%d ", i);
550 fprintf (file, "}\n");
553 /* Dumps a hard reg set SET using PREFIX. */
554 void
555 dump_hard_reg_set (const char *prefix, HARD_REG_SET set)
557 print_hard_reg_set (sched_dump, prefix, set);
560 /* Pretty print INSN. This is used as a hook. */
561 const char *
562 sel_print_insn (const rtx_insn *insn, int aligned ATTRIBUTE_UNUSED)
564 static char buf[80];
566 /* '+' before insn means it is a new cycle start and it's not been
567 scheduled yet. '>' - has been scheduled. */
568 if (s_i_d.exists () && INSN_LUID (insn) > 0)
569 if (GET_MODE (insn) == TImode)
570 sprintf (buf, "%s %4d",
571 INSN_SCHED_TIMES (insn) > 0 ? "> " : "< ",
572 INSN_UID (insn));
573 else
574 sprintf (buf, "%s %4d",
575 INSN_SCHED_TIMES (insn) > 0 ? "! " : " ",
576 INSN_UID (insn));
577 else
578 if (GET_MODE (insn) == TImode)
579 sprintf (buf, "+ %4d", INSN_UID (insn));
580 else
581 sprintf (buf, " %4d", INSN_UID (insn));
583 return buf;
587 /* Functions for pretty printing of CFG. */
588 /* FIXME: Using pretty-print here could simplify this stuff. */
590 /* Replace all occurencies of STR1 to STR2 in BUF.
591 The BUF must be large enough to hold the result. */
592 static void
593 replace_str_in_buf (char *buf, const char *str1, const char *str2)
595 int buf_len = strlen (buf);
596 int str1_len = strlen (str1);
597 int str2_len = strlen (str2);
598 int diff = str2_len - str1_len;
600 char *p = buf;
603 p = strstr (p, str1);
604 if (p)
606 char *p1 = p + str1_len;
607 /* Copy the rest of buf and '\0'. */
608 int n = buf + buf_len - p1;
609 int i;
611 /* Shift str by DIFF chars. */
612 if (diff > 0)
613 for (i = n; i >= 0; i--)
614 p1[i + diff] = p1[i];
615 else
616 for (i = 0; i <= n; i++)
617 p1[i + diff] = p1[i];
619 /* Copy str2. */
620 for (i = 0; i < str2_len; i++)
621 p[i] = str2[i];
623 p += str2_len;
624 buf_len += diff;
628 while (p);
631 /* Replace characters in BUF that have special meaning in .dot file.
632 Similar to pp_write_text_as_dot_label_to_stream. */
633 static void
634 sel_prepare_string_for_dot_label (char *buf)
636 static char specials_from[7][2] = { "<", ">", "{", "|", "}", "\"",
637 "\n" };
638 static char specials_to[7][3] = { "\\<", "\\>", "\\{", "\\|", "\\}",
639 "\\\"", "\\l" };
640 unsigned i;
642 for (i = 0; i < 7; i++)
643 replace_str_in_buf (buf, specials_from[i], specials_to[i]);
646 /* This function acts like printf but dumps to the sched_dump file. */
647 void
648 sel_print (const char *fmt, ...)
650 va_list ap;
651 va_start (ap, fmt);
652 if (sched_dump_to_dot_p)
654 char *message;
655 if (vasprintf (&message, fmt, ap) >= 0 && message != NULL)
657 message = (char *) xrealloc (message, 2 * strlen (message) + 1);
658 sel_prepare_string_for_dot_label (message);
659 fprintf (sched_dump, "%s", message);
660 free (message);
663 else
664 vfprintf (sched_dump, fmt, ap);
665 va_end (ap);
668 /* Dump INSN with FLAGS. */
669 static void
670 sel_dump_cfg_insn (insn_t insn, int flags)
672 int insn_flags = DUMP_INSN_UID | DUMP_INSN_PATTERN;
674 if (sched_luids.exists () && INSN_LUID (insn) > 0)
676 if (flags & SEL_DUMP_CFG_INSN_SEQNO)
677 insn_flags |= DUMP_INSN_SEQNO | DUMP_INSN_SCHED_CYCLE | DUMP_INSN_EXPR;
680 dump_insn_1 (insn, insn_flags);
683 /* Dump E to the dot file F. */
684 static void
685 sel_dump_cfg_edge (FILE *f, edge e)
687 int w;
688 const char *color;
690 if (e->flags & EDGE_FALLTHRU)
692 w = 10;
693 color = ", color = red";
695 else if (e->src->next_bb == e->dest)
697 w = 3;
698 color = ", color = blue";
700 else
702 w = 1;
703 color = "";
706 fprintf (f, "\tbb%d -> bb%d [weight = %d%s];\n",
707 e->src->index, e->dest->index, w, color);
711 /* Return true if BB has a predesessor from current region.
712 TODO: Either make this function to trace back through empty block
713 or just remove those empty blocks. */
714 static bool
715 has_preds_in_current_region_p (basic_block bb)
717 edge e;
718 edge_iterator ei;
720 gcc_assert (!in_current_region_p (bb));
722 FOR_EACH_EDGE (e, ei, bb->preds)
723 if (in_current_region_p (e->src))
724 return true;
726 return false;
729 /* Dump a cfg region to the dot file F honoring FLAGS. */
730 static void
731 sel_dump_cfg_2 (FILE *f, int flags)
733 basic_block bb;
735 sched_dump_to_dot_p = true;
736 switch_dump (f);
738 fprintf (f, "digraph G {\n"
739 "\tratio = 2.25;\n"
740 "\tnode [shape = record, fontsize = 9];\n");
742 if (flags & SEL_DUMP_CFG_FUNCTION_NAME)
743 fprintf (f, "function [label = \"%s\"];\n", current_function_name ());
745 FOR_EACH_BB_FN (bb, cfun)
747 insn_t insn = BB_HEAD (bb);
748 insn_t next_tail = NEXT_INSN (BB_END (bb));
749 edge e;
750 edge_iterator ei;
751 bool in_region_p = ((flags & SEL_DUMP_CFG_CURRENT_REGION)
752 && in_current_region_p (bb));
753 bool full_p = (!(flags & SEL_DUMP_CFG_CURRENT_REGION)
754 || in_region_p);
755 bool some_p = full_p || has_preds_in_current_region_p (bb);
756 const char *color;
757 const char *style;
759 if (!some_p)
760 continue;
762 if ((flags & SEL_DUMP_CFG_CURRENT_REGION)
763 && in_current_region_p (bb)
764 && BLOCK_TO_BB (bb->index) == 0)
765 color = "color = green, ";
766 else
767 color = "";
769 if ((flags & SEL_DUMP_CFG_FENCES)
770 && in_region_p)
772 style = "";
774 if (!sel_bb_empty_p (bb))
776 bool first_p = true;
777 insn_t tail = BB_END (bb);
778 insn_t cur_insn;
780 cur_insn = bb_note (bb);
784 fence_t fence;
786 cur_insn = NEXT_INSN (cur_insn);
787 fence = flist_lookup (fences, cur_insn);
789 if (fence != NULL)
791 if (!FENCE_SCHEDULED_P (fence))
793 if (first_p)
794 color = "color = red, ";
795 else
796 color = "color = yellow, ";
798 else
799 color = "color = blue, ";
802 first_p = false;
804 while (cur_insn != tail);
807 else if (!full_p)
808 style = "style = dashed, ";
809 else
810 style = "";
812 fprintf (f, "\tbb%d [%s%slabel = \"{Basic block %d", bb->index,
813 style, color, bb->index);
815 if ((flags & SEL_DUMP_CFG_BB_LOOP)
816 && bb->loop_father != NULL)
817 fprintf (f, ", loop %d", bb->loop_father->num);
819 if (full_p
820 && (flags & SEL_DUMP_CFG_BB_NOTES_LIST))
822 insn_t notes = BB_NOTE_LIST (bb);
824 if (notes != NULL_RTX)
826 fprintf (f, "|");
828 /* For simplicity, we dump notes from note_list in reversed order
829 to that what they will appear in the code. */
830 while (notes != NULL_RTX)
832 sel_dump_cfg_insn (notes, flags);
833 fprintf (f, "\\l");
835 notes = PREV_INSN (notes);
840 if (full_p
841 && (flags & SEL_DUMP_CFG_AV_SET)
842 && in_current_region_p (bb)
843 && !sel_bb_empty_p (bb))
845 fprintf (f, "|");
847 if (BB_AV_SET_VALID_P (bb))
848 dump_av_set (BB_AV_SET (bb));
849 else if (BB_AV_LEVEL (bb) == -1)
850 fprintf (f, "AV_SET needs update");
853 if ((flags & SEL_DUMP_CFG_LV_SET)
854 && !sel_bb_empty_p (bb))
856 fprintf (f, "|");
858 if (BB_LV_SET_VALID_P (bb))
859 dump_lv_set (BB_LV_SET (bb));
860 else
861 fprintf (f, "LV_SET needs update");
864 if (full_p
865 && (flags & SEL_DUMP_CFG_BB_INSNS))
867 fprintf (f, "|");
868 while (insn != next_tail)
870 sel_dump_cfg_insn (insn, flags);
871 fprintf (f, "\\l");
873 insn = NEXT_INSN (insn);
877 fprintf (f, "}\"];\n");
879 FOR_EACH_EDGE (e, ei, bb->succs)
880 if (full_p || in_current_region_p (e->dest))
881 sel_dump_cfg_edge (f, e);
884 fprintf (f, "}");
886 restore_dump ();
887 sched_dump_to_dot_p = false;
890 /* Dump a cfg region to the file specified by TAG honoring flags.
891 The file is created by the function. */
892 static void
893 sel_dump_cfg_1 (const char *tag, int flags)
895 char *buf;
896 int i;
897 FILE *f;
899 ++sel_dump_cfg_fileno;
901 if (!sel_dump_cfg_p)
902 return;
904 i = 1 + snprintf (NULL, 0, "%s/%s%05d-%s.dot", sel_debug_cfg_root,
905 sel_debug_cfg_root_postfix, sel_dump_cfg_fileno, tag);
906 buf = XNEWVEC (char, i);
907 snprintf (buf, i, "%s/%s%05d-%s.dot", sel_debug_cfg_root,
908 sel_debug_cfg_root_postfix, sel_dump_cfg_fileno, tag);
910 f = fopen (buf, "w");
912 if (f == NULL)
913 fprintf (stderr, "Can't create file: %s.\n", buf);
914 else
916 sel_dump_cfg_2 (f, flags);
918 fclose (f);
921 free (buf);
924 /* Setup cfg dumping flags. Used for debugging. */
925 void
926 setup_dump_cfg_params (void)
928 sel_dump_cfg_flags = SEL_DUMP_CFG_FLAGS;
929 sel_dump_cfg_p = 0;
930 sel_debug_cfg_root_postfix = sel_debug_cfg_root_postfix_default;
933 /* Debug a cfg region with FLAGS. */
934 void
935 sel_debug_cfg_1 (int flags)
937 bool t1 = sel_dump_cfg_p;
938 int t2 = sel_dump_cfg_fileno;
940 sel_dump_cfg_p = true;
941 sel_dump_cfg_fileno = ++sel_debug_cfg_fileno;
943 sel_dump_cfg_1 ("sel-debug-cfg", flags);
945 sel_dump_cfg_fileno = t2;
946 sel_dump_cfg_p = t1;
949 /* Dumps av_set AV to stderr. */
950 DEBUG_FUNCTION void
951 debug_av_set (av_set_t av)
953 switch_dump (stderr);
954 dump_av_set (av);
955 sel_print ("\n");
956 restore_dump ();
959 /* Dump LV to stderr. */
960 DEBUG_FUNCTION void
961 debug_lv_set (regset lv)
963 switch_dump (stderr);
964 dump_lv_set (lv);
965 sel_print ("\n");
966 restore_dump ();
969 /* Dump an instruction list P to stderr. */
970 DEBUG_FUNCTION void
971 debug_ilist (ilist_t p)
973 switch_dump (stderr);
974 dump_ilist (p);
975 sel_print ("\n");
976 restore_dump ();
979 /* Dump a boundary list BNDS to stderr. */
980 DEBUG_FUNCTION void
981 debug_blist (blist_t bnds)
983 switch_dump (stderr);
984 dump_blist (bnds);
985 sel_print ("\n");
986 restore_dump ();
989 /* Dump a hard reg set SET to stderr. */
990 DEBUG_FUNCTION void
991 debug_hard_reg_set (HARD_REG_SET set)
993 switch_dump (stderr);
994 dump_hard_reg_set ("", set);
995 sel_print ("\n");
996 restore_dump ();
999 /* Debug a cfg region with default flags. */
1000 void
1001 sel_debug_cfg (void)
1003 sel_debug_cfg_1 (sel_debug_cfg_flags);
1006 /* Print a current cselib value for X's address to stderr. */
1007 DEBUG_FUNCTION rtx
1008 debug_mem_addr_value (rtx x)
1010 rtx t, addr;
1011 machine_mode address_mode;
1013 gcc_assert (MEM_P (x));
1014 address_mode = get_address_mode (x);
1016 t = shallow_copy_rtx (x);
1017 if (cselib_lookup (XEXP (t, 0), address_mode, 0, GET_MODE (t)))
1018 XEXP (t, 0) = cselib_subst_to_values (XEXP (t, 0), GET_MODE (t));
1020 t = canon_rtx (t);
1021 addr = get_addr (XEXP (t, 0));
1022 debug_rtx (t);
1023 debug_rtx (addr);
1024 return t;
1026 #endif