1/* Instruction scheduling pass. Log dumping infrastructure.
2 Copyright (C) 2006-2017 Free Software Foundation, Inc.
3
4This file is part of GCC.
5
6GCC is free software; you can redistribute it and/or modify it under
7the terms of the GNU General Public License as published by the Free
8Software Foundation; either version 3, or (at your option) any later
9version.
10
11GCC is distributed in the hope that it will be useful, but WITHOUT ANY
12WARRANTY; without even the implied warranty of MERCHANTABILITY or
13FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
14for more details.
15
16You should have received a copy of the GNU General Public License
17along with GCC; see the file COPYING3. If not see
18<http://www.gnu.org/licenses/>. */
19
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"
28
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"
36
37
38/* These variables control high-level pretty printing. */
39static int sel_dump_cfg_flags = SEL_DUMP_CFG_FLAGS;
40static int sel_debug_cfg_flags = SEL_DUMP_CFG_FLAGS;
41
42/* True when a cfg should be dumped. */
43static bool sel_dump_cfg_p;
44
45/* Variables that are used to build the cfg dump file name. */
46static const char * const sel_debug_cfg_root = "./";
47static const char * const sel_debug_cfg_root_postfix_default = "";
48static const char *sel_debug_cfg_root_postfix = "";
49static int sel_dump_cfg_fileno = -1;
50static int sel_debug_cfg_fileno = -1;
51
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. */
56bool sched_dump_to_dot_p = false;
57
58/* Controls how insns from a fence list should be dumped. */
59static int dump_flist_insn_flags = (DUMP_INSN_UID | DUMP_INSN_BBN
60 | DUMP_INSN_SEQNO);
61
62
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. */
65static FILE *saved_sched_dump = NULL;
66
67/* Switch sched_dump to TO. It must not be called twice. */
68static void
69switch_dump (FILE *to)
70{
71 gcc_assert (saved_sched_dump == NULL);
72
73 saved_sched_dump = sched_dump;
74 sched_dump = to;
75}
76
77/* Restore previously switched dump. */
78static void
79restore_dump (void)
80{
81 sched_dump = saved_sched_dump;
82 saved_sched_dump = NULL;
83}
84
85
86/* Functions for dumping instructions, av sets, and exprs. */
87
88/* Default flags for dumping insns. */
89static int dump_insn_rtx_flags = DUMP_INSN_RTX_UID | DUMP_INSN_RTX_PATTERN;
90
91/* Default flags for dumping vinsns. */
92static int dump_vinsn_flags = (DUMP_VINSN_INSN_RTX | DUMP_VINSN_TYPE
93 | DUMP_VINSN_COUNT);
94
95/* Default flags for dumping expressions. */
96static int dump_expr_flags = DUMP_EXPR_ALL;
97
98/* Default flags for dumping insns when debugging. */
99static int debug_insn_rtx_flags = DUMP_INSN_RTX_ALL;
100
101/* Default flags for dumping vinsns when debugging. */
102static int debug_vinsn_flags = DUMP_VINSN_ALL;
103
104/* Default flags for dumping expressions when debugging. */
105static int debug_expr_flags = DUMP_EXPR_ALL;
106
107/* Controls how an insn from stream should be dumped when debugging. */
108static int debug_insn_flags = DUMP_INSN_ALL;
109
110/* Print an rtx X. */
111void
112sel_print_rtl (rtx x)
113{
114 print_rtl_single (sched_dump, x);
115}
116
117/* Dump insn INSN honoring FLAGS. */
118void
119dump_insn_rtx_1 (rtx insn, int flags)
120{
121 int all;
122
123 /* flags == -1 also means dumping all. */
124 all = (flags & 1);
125 if (all)
126 flags |= DUMP_INSN_RTX_ALL;
127
128 sel_print ("(");
129
130 if (flags & DUMP_INSN_RTX_UID)
131 sel_print ("%d;", INSN_UID (insn));
132
133 if (flags & DUMP_INSN_RTX_PATTERN)
134 sel_print ("%s;", str_pattern_slim (PATTERN (insn)));
135
136 if (flags & DUMP_INSN_RTX_BBN)
137 {
138 basic_block bb = BLOCK_FOR_INSN (insn);
139
140 sel_print ("bb:%d;", bb != NULL ? bb->index : -1);
141 }
142
143 sel_print (")");
144}
145
146
147/* Dump INSN with default flags. */
148void
149dump_insn_rtx (rtx insn)
150{
151 dump_insn_rtx_1 (insn, dump_insn_rtx_flags);
152}
153
154
155/* Dump INSN to stderr. */
156DEBUG_FUNCTION void
157debug_insn_rtx (rtx insn)
158{
159 switch_dump (stderr);
160 dump_insn_rtx_1 (insn, debug_insn_rtx_flags);
161 sel_print ("\n");
162 restore_dump ();
163}
164
165/* Dump vinsn VI honoring flags. */
166void
167dump_vinsn_1 (vinsn_t vi, int flags)
168{
169 int all;
170
171 /* flags == -1 also means dumping all. */
172 all = flags & 1;
173 if (all)
174 flags |= DUMP_VINSN_ALL;
175
176 sel_print ("(");
177
178 if (flags & DUMP_VINSN_INSN_RTX)
179 dump_insn_rtx_1 (VINSN_INSN_RTX (vi), dump_insn_rtx_flags | all);
180
181 if (flags & DUMP_VINSN_TYPE)
182 sel_print ("type:%s;", GET_RTX_NAME (VINSN_TYPE (vi)));
183
184 if (flags & DUMP_VINSN_COUNT)
185 sel_print ("count:%d;", VINSN_COUNT (vi));
186
187 if (flags & DUMP_VINSN_COST)
188 {
189 int cost = vi->cost;
190
191 if (cost != -1)
192 sel_print ("cost:%d;", cost);
193 }
194
195 sel_print (")");
196}
197
198/* Dump vinsn VI with default flags. */
199void
200dump_vinsn (vinsn_t vi)
201{
202 dump_vinsn_1 (vi, dump_vinsn_flags);
203}
204
205DEBUG_FUNCTION void
206debug (vinsn_def &ref)
207{
208 switch_dump (stderr);
209 dump_vinsn_1 (&ref, dump_vinsn_flags);
210 sel_print ("\n");
211 restore_dump ();
212}
213
214DEBUG_FUNCTION void
215debug (vinsn_def *ptr)
216{
217 if (ptr)
218 debug (*ptr);
219 else
220 fprintf (stderr, "<nil>\n");
221}
222
223DEBUG_FUNCTION void
224debug_verbose (vinsn_def &ref)
225{
226 switch_dump (stderr);
227 dump_vinsn_1 (&ref, debug_vinsn_flags);
228 sel_print ("\n");
229 restore_dump ();
230}
231
232DEBUG_FUNCTION void
233debug_verbose (vinsn_def *ptr)
234{
235 if (ptr)
236 debug (*ptr);
237 else
238 fprintf (stderr, "<nil>\n");
239}
240
241/* Dump vinsn VI to stderr. */
242DEBUG_FUNCTION void
243debug_vinsn (vinsn_t vi)
244{
245 switch_dump (stderr);
246 dump_vinsn_1 (vi, debug_vinsn_flags);
247 sel_print ("\n");
248 restore_dump ();
249}
250
251/* Dump EXPR honoring flags. */
252void
253dump_expr_1 (expr_t expr, int flags)
254{
255 int all;
256
257 /* flags == -1 also means dumping all. */
258 all = flags & 1;
259 if (all)
260 flags |= DUMP_EXPR_ALL;
261
262 sel_print ("[");
263
264 if (flags & DUMP_EXPR_VINSN)
265 dump_vinsn_1 (EXPR_VINSN (expr), dump_vinsn_flags | all);
266
267 if (flags & DUMP_EXPR_SPEC)
268 {
269 int spec = EXPR_SPEC (expr);
270
271 if (spec != 0)
272 sel_print ("spec:%d;", spec);
273 }
274
275 if (flags & DUMP_EXPR_USEFULNESS)
276 {
277 int use = EXPR_USEFULNESS (expr);
278
279 if (use != REG_BR_PROB_BASE)
280 sel_print ("use:%d;", use);
281 }
282
283 if (flags & DUMP_EXPR_PRIORITY)
284 sel_print ("prio:%d;", EXPR_PRIORITY (expr));
285
286 if (flags & DUMP_EXPR_SCHED_TIMES)
287 {
288 int times = EXPR_SCHED_TIMES (expr);
289
290 if (times != 0)
291 sel_print ("times:%d;", times);
292 }
293
294 if (flags & DUMP_EXPR_SPEC_DONE_DS)
295 {
296 ds_t spec_done_ds = EXPR_SPEC_DONE_DS (expr);
297
298 if (spec_done_ds != 0)
299 sel_print ("ds:%d;", spec_done_ds);
300 }
301
302 if (flags & DUMP_EXPR_ORIG_BB)
303 {
304 int orig_bb = EXPR_ORIG_BB_INDEX (expr);
305
306 if (orig_bb != 0)
307 sel_print ("orig_bb:%d;", orig_bb);
308 }
309
310 if (EXPR_TARGET_AVAILABLE (expr) < 1)
311 sel_print ("target:%d;", EXPR_TARGET_AVAILABLE (expr));
312 sel_print ("]");
313}
314
315/* Dump expression EXPR with default flags. */
316void
317dump_expr (expr_t expr)
318{
319 dump_expr_1 (expr, dump_expr_flags);
320}
321
322/* Dump expression EXPR to stderr. */
323DEBUG_FUNCTION void
324debug_expr (expr_t expr)
325{
326 switch_dump (stderr);
327 dump_expr_1 (expr, debug_expr_flags);
328 sel_print ("\n");
329 restore_dump ();
330}
331
332/* Dump expression REF. */
333
334DEBUG_FUNCTION void
335debug (expr_def &ref)
336{
337 switch_dump (stderr);
338 dump_expr_1 (&ref, 0);
339 sel_print ("\n");
340 restore_dump ();
341}
342
343DEBUG_FUNCTION void
344debug (expr_def *ptr)
345{
346 if (ptr)
347 debug (*ptr);
348 else
349 fprintf (stderr, "<nil>\n");
350}
351
352/* Dump expression REF verbosely. */
353
354DEBUG_FUNCTION void
355debug_verbose (expr_def &ref)
356{
357 switch_dump (stderr);
358 dump_expr_1 (&ref, DUMP_EXPR_ALL);
359 sel_print ("\n");
360 restore_dump ();
361}
362
363DEBUG_FUNCTION void
364debug_verbose (expr_def *ptr)
365{
366 if (ptr)
367 debug_verbose (*ptr);
368 else
369 fprintf (stderr, "<nil>\n");
370}
371
372/* Dump insn I honoring FLAGS. */
373void
374dump_insn_1 (insn_t i, int flags)
375{
376 int all;
377
378 all = flags & 1;
379 if (all)
380 flags |= DUMP_INSN_ALL;
381
382 if (!sched_dump_to_dot_p)
383 sel_print ("(");
384
385 if (flags & DUMP_INSN_EXPR)
386 {
387 dump_expr_1 (INSN_EXPR (i), dump_expr_flags | all);
388 sel_print (";");
389 }
390 else if (flags & DUMP_INSN_PATTERN)
391 {
392 dump_insn_rtx_1 (i, DUMP_INSN_RTX_PATTERN | all);
393 sel_print (";");
394 }
395 else if (flags & DUMP_INSN_UID)
396 sel_print ("uid:%d;", INSN_UID (i));
397
398 if (flags & DUMP_INSN_SEQNO)
399 sel_print ("seqno:%d;", INSN_SEQNO (i));
400
401 if (flags & DUMP_INSN_SCHED_CYCLE)
402 {
403 int cycle = INSN_SCHED_CYCLE (i);
404
405 if (cycle != 0)
406 sel_print ("cycle:%d;", cycle);
407 }
408
409 if (!sched_dump_to_dot_p)
410 sel_print (")");
411}
412
413/* Dump insn I with default flags. */
414void
415dump_insn (insn_t i)
416{
417 dump_insn_1 (i, DUMP_INSN_EXPR | DUMP_INSN_SCHED_CYCLE);
418}
419
420/* Dump INSN to stderr. */
421DEBUG_FUNCTION void
422debug_insn (insn_t insn)
423{
424 switch_dump (stderr);
425 dump_insn_1 (insn, debug_insn_flags);
426 sel_print ("\n");
427 restore_dump ();
428}
429
430/* Dumps av_set AV. */
431void
432dump_av_set (av_set_t av)
433{
434 av_set_iterator i;
435 expr_t expr;
436
437 if (!sched_dump_to_dot_p)
438 sel_print ("{");
439
440 FOR_EACH_EXPR (expr, i, av)
441 {
442 dump_expr (expr);
443 if (!sched_dump_to_dot_p)
444 sel_print (" ");
445 else
446 sel_print ("\n");
447 }
448
449 if (!sched_dump_to_dot_p)
450 sel_print ("}");
451}
452
453/* Dumps lvset LV. */
454void
455dump_lv_set (regset lv)
456{
457 sel_print ("{");
458
459 /* This code was adapted from cfg.c: dump_regset (). */
460 if (lv == NULL)
461 sel_print ("nil");
462 else
463 {
464 unsigned i;
465 reg_set_iterator rsi;
466 int count = 0;
467
468 EXECUTE_IF_SET_IN_REG_SET (lv, 0, i, rsi)
469 {
470 sel_print (" %d", i);
471 if (i < FIRST_PSEUDO_REGISTER)
472 {
473 sel_print (" [%s]", reg_names[i]);
474 ++count;
475 }
476
477 ++count;
478
479 if (sched_dump_to_dot_p && count == 12)
480 {
481 count = 0;
482 sel_print ("\n");
483 }
484 }
485 }
486
487 sel_print ("}\n");
488}
489
490/* Dumps a list of instructions pointed to by P. */
491static void
492dump_ilist (ilist_t p)
493{
494 while (p)
495 {
496 dump_insn (ILIST_INSN (p));
497 p = ILIST_NEXT (p);
498 }
499}
500
501/* Dumps a list of boundaries pointed to by BNDS. */
502void
503dump_blist (blist_t bnds)
504{
505 for (; bnds; bnds = BLIST_NEXT (bnds))
506 {
507 bnd_t bnd = BLIST_BND (bnds);
508
509 sel_print ("[to: %d; ptr: ", INSN_UID (BND_TO (bnd)));
510 dump_ilist (BND_PTR (bnd));
511 sel_print ("] ");
512 }
513}
514
515/* Dumps a list of fences pointed to by L. */
516void
517dump_flist (flist_t l)
518{
519 while (l)
520 {
521 dump_insn_1 (FENCE_INSN (FLIST_FENCE (l)), dump_flist_insn_flags);
522 sel_print (" ");
523 l = FLIST_NEXT (l);
524 }
525}
526
527/* Dumps an insn vector SUCCS. */
528void
529dump_insn_vector (rtx_vec_t succs)
530{
531 int i;
532 rtx_insn *succ;
533
534 FOR_EACH_VEC_ELT (succs, i, succ)
535 if (succ)
536 dump_insn (succ);
537 else
538 sel_print ("NULL ");
539}
540
541/* Dumps a hard reg set SET to FILE using PREFIX. */
542static void
543print_hard_reg_set (FILE *file, const char *prefix, HARD_REG_SET set)
544{
545 int i;
546
547 fprintf (file, "%s{ ", prefix);
548 for (i = 0; i < FIRST_PSEUDO_REGISTER; i++)
549 {
550 if (TEST_HARD_REG_BIT (set, i))
551 fprintf (file, "%d ", i);
552 }
553 fprintf (file, "}\n");
554}
555
556/* Dumps a hard reg set SET using PREFIX. */
557void
558dump_hard_reg_set (const char *prefix, HARD_REG_SET set)
559{
560 print_hard_reg_set (sched_dump, prefix, set);
561}
562
563/* Pretty print INSN. This is used as a hook. */
564const char *
565sel_print_insn (const rtx_insn *insn, int aligned ATTRIBUTE_UNUSED)
566{
567 static char buf[80];
568
569 /* '+' before insn means it is a new cycle start and it's not been
570 scheduled yet. '>' - has been scheduled. */
571 if (s_i_d.exists () && INSN_LUID (insn) > 0)
572 if (GET_MODE (insn) == TImode)
573 sprintf (buf, "%s %4d",
574 INSN_SCHED_TIMES (insn) > 0 ? "> " : "< ",
575 INSN_UID (insn));
576 else
577 sprintf (buf, "%s %4d",
578 INSN_SCHED_TIMES (insn) > 0 ? "! " : " ",
579 INSN_UID (insn));
580 else
581 if (GET_MODE (insn) == TImode)
582 sprintf (buf, "+ %4d", INSN_UID (insn));
583 else
584 sprintf (buf, " %4d", INSN_UID (insn));
585
586 return buf;
587}
588
589
590/* Functions for pretty printing of CFG. */
591/* FIXME: Using pretty-print here could simplify this stuff. */
592
593/* Replace all occurencies of STR1 to STR2 in BUF.
594 The BUF must be large enough to hold the result. */
595static void
596replace_str_in_buf (char *buf, const char *str1, const char *str2)
597{
598 int buf_len = strlen (buf);
599 int str1_len = strlen (str1);
600 int str2_len = strlen (str2);
601 int diff = str2_len - str1_len;
602
603 char *p = buf;
604 do
605 {
606 p = strstr (p, str1);
607 if (p)
608 {
609 char *p1 = p + str1_len;
610 /* Copy the rest of buf and '\0'. */
611 int n = buf + buf_len - p1;
612 int i;
613
614 /* Shift str by DIFF chars. */
615 if (diff > 0)
616 for (i = n; i >= 0; i--)
617 p1[i + diff] = p1[i];
618 else
619 for (i = 0; i <= n; i++)
620 p1[i + diff] = p1[i];
621
622 /* Copy str2. */
623 for (i = 0; i < str2_len; i++)
624 p[i] = str2[i];
625
626 p += str2_len;
627 buf_len += diff;
628 }
629
630 }
631 while (p);
632}
633
634/* Replace characters in BUF that have special meaning in .dot file.
635 Similar to pp_write_text_as_dot_label_to_stream. */
636static void
637sel_prepare_string_for_dot_label (char *buf)
638{
639 static char specials_from[7][2] = { "<", ">", "{", "|", "}", "\"",
640 "\n" };
641 static char specials_to[7][3] = { "\\<", "\\>", "\\{", "\\|", "\\}",
642 "\\\"", "\\l" };
643 unsigned i;
644
645 for (i = 0; i < 7; i++)
646 replace_str_in_buf (buf, specials_from[i], specials_to[i]);
647}
648
649/* This function acts like printf but dumps to the sched_dump file. */
650void
651sel_print (const char *fmt, ...)
652{
653 va_list ap;
654 va_start (ap, fmt);
655 if (sched_dump_to_dot_p)
656 {
657 char *message;
658 if (vasprintf (&message, fmt, ap) >= 0 && message != NULL)
659 {
660 message = (char *) xrealloc (message, 2 * strlen (message) + 1);
661 sel_prepare_string_for_dot_label (message);
662 fprintf (sched_dump, "%s", message);
663 free (message);
664 }
665 }
666 else
667 vfprintf (sched_dump, fmt, ap);
668 va_end (ap);
669}
670
671/* Dump INSN with FLAGS. */
672static void
673sel_dump_cfg_insn (insn_t insn, int flags)
674{
675 int insn_flags = DUMP_INSN_UID | DUMP_INSN_PATTERN;
676
677 if (sched_luids.exists () && INSN_LUID (insn) > 0)
678 {
679 if (flags & SEL_DUMP_CFG_INSN_SEQNO)
680 insn_flags |= DUMP_INSN_SEQNO | DUMP_INSN_SCHED_CYCLE | DUMP_INSN_EXPR;
681 }
682
683 dump_insn_1 (insn, insn_flags);
684}
685
686/* Dump E to the dot file F. */
687static void
688sel_dump_cfg_edge (FILE *f, edge e)
689{
690 int w;
691 const char *color;
692
693 if (e->flags & EDGE_FALLTHRU)
694 {
695 w = 10;
696 color = ", color = red";
697 }
698 else if (e->src->next_bb == e->dest)
699 {
700 w = 3;
701 color = ", color = blue";
702 }
703 else
704 {
705 w = 1;
706 color = "";
707 }
708
709 fprintf (f, "\tbb%d -> bb%d [weight = %d%s];\n",
710 e->src->index, e->dest->index, w, color);
711}
712
713
714/* Return true if BB has a predesessor from current region.
715 TODO: Either make this function to trace back through empty block
716 or just remove those empty blocks. */
717static bool
718has_preds_in_current_region_p (basic_block bb)
719{
720 edge e;
721 edge_iterator ei;
722
723 gcc_assert (!in_current_region_p (bb));
724
725 FOR_EACH_EDGE (e, ei, bb->preds)
726 if (in_current_region_p (e->src))
727 return true;
728
729 return false;
730}
731
732/* Dump a cfg region to the dot file F honoring FLAGS. */
733static void
734sel_dump_cfg_2 (FILE *f, int flags)
735{
736 basic_block bb;
737
738 sched_dump_to_dot_p = true;
739 switch_dump (f);
740
741 fprintf (f, "digraph G {\n"
742 "\tratio = 2.25;\n"
743 "\tnode [shape = record, fontsize = 9];\n");
744
745 if (flags & SEL_DUMP_CFG_FUNCTION_NAME)
746 fprintf (f, "function [label = \"%s\"];\n", current_function_name ());
747
748 FOR_EACH_BB_FN (bb, cfun)
749 {
750 insn_t insn = BB_HEAD (bb);
751 insn_t next_tail = NEXT_INSN (BB_END (bb));
752 edge e;
753 edge_iterator ei;
754 bool in_region_p = ((flags & SEL_DUMP_CFG_CURRENT_REGION)
755 && in_current_region_p (bb));
756 bool full_p = (!(flags & SEL_DUMP_CFG_CURRENT_REGION)
757 || in_region_p);
758 bool some_p = full_p || has_preds_in_current_region_p (bb);
759 const char *color;
760 const char *style;
761
762 if (!some_p)
763 continue;
764
765 if ((flags & SEL_DUMP_CFG_CURRENT_REGION)
766 && in_current_region_p (bb)
767 && BLOCK_TO_BB (bb->index) == 0)
768 color = "color = green, ";
769 else
770 color = "";
771
772 if ((flags & SEL_DUMP_CFG_FENCES)
773 && in_region_p)
774 {
775 style = "";
776
777 if (!sel_bb_empty_p (bb))
778 {
779 bool first_p = true;
780 insn_t tail = BB_END (bb);
781 insn_t cur_insn;
782
783 cur_insn = bb_note (bb);
784
785 do
786 {
787 fence_t fence;
788
789 cur_insn = NEXT_INSN (cur_insn);
790 fence = flist_lookup (fences, cur_insn);
791
792 if (fence != NULL)
793 {
794 if (!FENCE_SCHEDULED_P (fence))
795 {
796 if (first_p)
797 color = "color = red, ";
798 else
799 color = "color = yellow, ";
800 }
801 else
802 color = "color = blue, ";
803 }
804
805 first_p = false;
806 }
807 while (cur_insn != tail);
808 }
809 }
810 else if (!full_p)
811 style = "style = dashed, ";
812 else
813 style = "";
814
815 fprintf (f, "\tbb%d [%s%slabel = \"{Basic block %d", bb->index,
816 style, color, bb->index);
817
818 if ((flags & SEL_DUMP_CFG_BB_LOOP)
819 && bb->loop_father != NULL)
820 fprintf (f, ", loop %d", bb->loop_father->num);
821
822 if (full_p
823 && (flags & SEL_DUMP_CFG_BB_NOTES_LIST))
824 {
825 insn_t notes = BB_NOTE_LIST (bb);
826
827 if (notes != NULL_RTX)
828 {
829 fprintf (f, "|");
830
831 /* For simplicity, we dump notes from note_list in reversed order
832 to that what they will appear in the code. */
833 while (notes != NULL_RTX)
834 {
835 sel_dump_cfg_insn (notes, flags);
836 fprintf (f, "\\l");
837
838 notes = PREV_INSN (notes);
839 }
840 }
841 }
842
843 if (full_p
844 && (flags & SEL_DUMP_CFG_AV_SET)
845 && in_current_region_p (bb)
846 && !sel_bb_empty_p (bb))
847 {
848 fprintf (f, "|");
849
850 if (BB_AV_SET_VALID_P (bb))
851 dump_av_set (BB_AV_SET (bb));
852 else if (BB_AV_LEVEL (bb) == -1)
853 fprintf (f, "AV_SET needs update");
854 }
855
856 if ((flags & SEL_DUMP_CFG_LV_SET)
857 && !sel_bb_empty_p (bb))
858 {
859 fprintf (f, "|");
860
861 if (BB_LV_SET_VALID_P (bb))
862 dump_lv_set (BB_LV_SET (bb));
863 else
864 fprintf (f, "LV_SET needs update");
865 }
866
867 if (full_p
868 && (flags & SEL_DUMP_CFG_BB_INSNS))
869 {
870 fprintf (f, "|");
871 while (insn != next_tail)
872 {
873 sel_dump_cfg_insn (insn, flags);
874 fprintf (f, "\\l");
875
876 insn = NEXT_INSN (insn);
877 }
878 }
879
880 fprintf (f, "}\"];\n");
881
882 FOR_EACH_EDGE (e, ei, bb->succs)
883 if (full_p || in_current_region_p (e->dest))
884 sel_dump_cfg_edge (f, e);
885 }
886
887 fprintf (f, "}");
888
889 restore_dump ();
890 sched_dump_to_dot_p = false;
891}
892
893/* Dump a cfg region to the file specified by TAG honoring flags.
894 The file is created by the function. */
895static void
896sel_dump_cfg_1 (const char *tag, int flags)
897{
898 char *buf;
899 int i;
900 FILE *f;
901
902 ++sel_dump_cfg_fileno;
903
904 if (!sel_dump_cfg_p)
905 return;
906
907 i = 1 + snprintf (NULL, 0, "%s/%s%05d-%s.dot", sel_debug_cfg_root,
908 sel_debug_cfg_root_postfix, sel_dump_cfg_fileno, tag);
909 buf = XNEWVEC (char, i);
910 snprintf (buf, i, "%s/%s%05d-%s.dot", sel_debug_cfg_root,
911 sel_debug_cfg_root_postfix, sel_dump_cfg_fileno, tag);
912
913 f = fopen (buf, "w");
914
915 if (f == NULL)
916 fprintf (stderr, "Can't create file: %s.\n", buf);
917 else
918 {
919 sel_dump_cfg_2 (f, flags);
920
921 fclose (f);
922 }
923
924 free (buf);
925}
926
927/* Setup cfg dumping flags. Used for debugging. */
928void
929setup_dump_cfg_params (void)
930{
931 sel_dump_cfg_flags = SEL_DUMP_CFG_FLAGS;
932 sel_dump_cfg_p = 0;
933 sel_debug_cfg_root_postfix = sel_debug_cfg_root_postfix_default;
934}
935
936/* Debug a cfg region with FLAGS. */
937void
938sel_debug_cfg_1 (int flags)
939{
940 bool t1 = sel_dump_cfg_p;
941 int t2 = sel_dump_cfg_fileno;
942
943 sel_dump_cfg_p = true;
944 sel_dump_cfg_fileno = ++sel_debug_cfg_fileno;
945
946 sel_dump_cfg_1 ("sel-debug-cfg", flags);
947
948 sel_dump_cfg_fileno = t2;
949 sel_dump_cfg_p = t1;
950}
951
952/* Dumps av_set AV to stderr. */
953DEBUG_FUNCTION void
954debug_av_set (av_set_t av)
955{
956 switch_dump (stderr);
957 dump_av_set (av);
958 sel_print ("\n");
959 restore_dump ();
960}
961
962/* Dump LV to stderr. */
963DEBUG_FUNCTION void
964debug_lv_set (regset lv)
965{
966 switch_dump (stderr);
967 dump_lv_set (lv);
968 sel_print ("\n");
969 restore_dump ();
970}
971
972/* Dump an instruction list P to stderr. */
973DEBUG_FUNCTION void
974debug_ilist (ilist_t p)
975{
976 switch_dump (stderr);
977 dump_ilist (p);
978 sel_print ("\n");
979 restore_dump ();
980}
981
982/* Dump a boundary list BNDS to stderr. */
983DEBUG_FUNCTION void
984debug_blist (blist_t bnds)
985{
986 switch_dump (stderr);
987 dump_blist (bnds);
988 sel_print ("\n");
989 restore_dump ();
990}
991
992/* Dump a hard reg set SET to stderr. */
993DEBUG_FUNCTION void
994debug_hard_reg_set (HARD_REG_SET set)
995{
996 switch_dump (stderr);
997 dump_hard_reg_set ("", set);
998 sel_print ("\n");
999 restore_dump ();
1000}
1001
1002/* Debug a cfg region with default flags. */
1003void
1004sel_debug_cfg (void)
1005{
1006 sel_debug_cfg_1 (sel_debug_cfg_flags);
1007}
1008
1009/* Print a current cselib value for X's address to stderr. */
1010DEBUG_FUNCTION rtx
1011debug_mem_addr_value (rtx x)
1012{
1013 rtx t, addr;
1014 machine_mode address_mode;
1015
1016 gcc_assert (MEM_P (x));
1017 address_mode = get_address_mode (x);
1018
1019 t = shallow_copy_rtx (x);
1020 if (cselib_lookup (XEXP (t, 0), address_mode, 0, GET_MODE (t)))
1021 XEXP (t, 0) = cselib_subst_to_values (XEXP (t, 0), GET_MODE (t));
1022
1023 t = canon_rtx (t);
1024 addr = get_addr (XEXP (t, 0));
1025 debug_rtx (t);
1026 debug_rtx (addr);
1027 return t;
1028}
1029#endif
1030
1031