1 /* Print RTL for GCC.
2 Copyright (C) 1987, 1988, 1992, 1997, 1998, 1999, 2000, 2002, 2003,
3 2004, 2005
4 Free Software Foundation, Inc.
5
6 This file is part of GCC.
7
8 GCC is free software; you can redistribute it and/or modify it under
9 the terms of the GNU General Public License as published by the Free
10 Software Foundation; either version 2, or (at your option) any later
11 version.
12
13 GCC is distributed in the hope that it will be useful, but WITHOUT ANY
14 WARRANTY; without even the implied warranty of MERCHANTABILITY or
15 FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
16 for more details.
17
18 You should have received a copy of the GNU General Public License
19 along with GCC; see the file COPYING. If not, write to the Free
20 Software Foundation, 51 Franklin Street, Fifth Floor, Boston, MA
21 02110-1301, USA. */
22
23 /* This file is compiled twice: once for the generator programs,
24 once for the compiler. */
25 #ifdef GENERATOR_FILE
26 #include "bconfig.h"
27 #else
28 #include "config.h"
29 #endif
30
31 #include "system.h"
32 #include "coretypes.h"
33 #include "tm.h"
34 #include "rtl.h"
35
36 /* These headers all define things which are not available in
37 generator programs. */
38 #ifndef GENERATOR_FILE
39 #include "tree.h"
40 #include "real.h"
41 #include "flags.h"
42 #include "hard-reg-set.h"
43 #include "basic-block.h"
44 #endif
45
46 static FILE *outfile;
47
48 static int sawclose = 0;
49
50 static int indent;
51
52 static void print_rtx (rtx);
53
54 /* String printed at beginning of each RTL when it is dumped.
55 This string is set to ASM_COMMENT_START when the RTL is dumped in
56 the assembly output file. */
57 const char *print_rtx_head = "";
58
59 /* Nonzero means suppress output of instruction numbers and line number
60 notes in debugging dumps.
61 This must be defined here so that programs like gencodes can be linked. */
62 int flag_dump_unnumbered = 0;
63
64 /* Nonzero means use simplified format without flags, modes, etc. */
65 int flag_simple = 0;
66
67 /* Nonzero if we are dumping graphical description. */
68 int dump_for_graph;
69
70 #ifndef GENERATOR_FILE
71 static void
print_decl_name(FILE * outfile,tree node)72 print_decl_name (FILE *outfile, tree node)
73 {
74 if (DECL_NAME (node))
75 fputs (IDENTIFIER_POINTER (DECL_NAME (node)), outfile);
76 else
77 {
78 if (TREE_CODE (node) == LABEL_DECL && LABEL_DECL_UID (node) != -1)
79 fprintf (outfile, "L." HOST_WIDE_INT_PRINT_DEC, LABEL_DECL_UID (node));
80 else
81 {
82 char c = TREE_CODE (node) == CONST_DECL ? 'C' : 'D';
83 fprintf (outfile, "%c.%u", c, DECL_UID (node));
84 }
85 }
86 }
87
88 void
print_mem_expr(FILE * outfile,tree expr)89 print_mem_expr (FILE *outfile, tree expr)
90 {
91 if (TREE_CODE (expr) == COMPONENT_REF)
92 {
93 if (TREE_OPERAND (expr, 0))
94 print_mem_expr (outfile, TREE_OPERAND (expr, 0));
95 else
96 fputs (" <variable>", outfile);
97 fputc ('.', outfile);
98 print_decl_name (outfile, TREE_OPERAND (expr, 1));
99 }
100 else if (TREE_CODE (expr) == INDIRECT_REF)
101 {
102 fputs (" (*", outfile);
103 print_mem_expr (outfile, TREE_OPERAND (expr, 0));
104 fputs (")", outfile);
105 }
106 else if (TREE_CODE (expr) == ALIGN_INDIRECT_REF)
107 {
108 fputs (" (A*", outfile);
109 print_mem_expr (outfile, TREE_OPERAND (expr, 0));
110 fputs (")", outfile);
111 }
112 else if (TREE_CODE (expr) == MISALIGNED_INDIRECT_REF)
113 {
114 fputs (" (M*", outfile);
115 print_mem_expr (outfile, TREE_OPERAND (expr, 0));
116 fputs (")", outfile);
117 }
118 else if (TREE_CODE (expr) == RESULT_DECL)
119 fputs (" <result>", outfile);
120 else
121 {
122 fputc (' ', outfile);
123 print_decl_name (outfile, expr);
124 }
125 }
126 #endif
127
128 /* Print IN_RTX onto OUTFILE. This is the recursive part of printing. */
129
130 static void
print_rtx(rtx in_rtx)131 print_rtx (rtx in_rtx)
132 {
133 int i = 0;
134 int j;
135 const char *format_ptr;
136 int is_insn;
137
138 if (sawclose)
139 {
140 if (flag_simple)
141 fputc (' ', outfile);
142 else
143 fprintf (outfile, "\n%s%*s", print_rtx_head, indent * 2, "");
144 sawclose = 0;
145 }
146
147 if (in_rtx == 0)
148 {
149 fputs ("(nil)", outfile);
150 sawclose = 1;
151 return;
152 }
153 else if (GET_CODE (in_rtx) > NUM_RTX_CODE)
154 {
155 fprintf (outfile, "(??? bad code %d\n)", GET_CODE (in_rtx));
156 sawclose = 1;
157 return;
158 }
159
160 is_insn = INSN_P (in_rtx);
161
162 /* When printing in VCG format we write INSNs, NOTE, LABEL, and BARRIER
163 in separate nodes and therefore have to handle them special here. */
164 if (dump_for_graph
165 && (is_insn || NOTE_P (in_rtx)
166 || LABEL_P (in_rtx) || BARRIER_P (in_rtx)))
167 {
168 i = 3;
169 indent = 0;
170 }
171 else
172 {
173 /* Print name of expression code. */
174 if (flag_simple && GET_CODE (in_rtx) == CONST_INT)
175 fputc ('(', outfile);
176 else
177 fprintf (outfile, "(%s", GET_RTX_NAME (GET_CODE (in_rtx)));
178
179 if (! flag_simple)
180 {
181 if (RTX_FLAG (in_rtx, in_struct))
182 fputs ("/s", outfile);
183
184 if (RTX_FLAG (in_rtx, volatil))
185 fputs ("/v", outfile);
186
187 if (RTX_FLAG (in_rtx, unchanging))
188 fputs ("/u", outfile);
189
190 if (RTX_FLAG (in_rtx, frame_related))
191 fputs ("/f", outfile);
192
193 if (RTX_FLAG (in_rtx, jump))
194 fputs ("/j", outfile);
195
196 if (RTX_FLAG (in_rtx, call))
197 fputs ("/c", outfile);
198
199 if (RTX_FLAG (in_rtx, return_val))
200 fputs ("/i", outfile);
201
202 /* Print REG_NOTE names for EXPR_LIST and INSN_LIST. */
203 if (GET_CODE (in_rtx) == EXPR_LIST
204 || GET_CODE (in_rtx) == INSN_LIST)
205 fprintf (outfile, ":%s",
206 GET_REG_NOTE_NAME (GET_MODE (in_rtx)));
207
208 /* For other rtl, print the mode if it's not VOID. */
209 else if (GET_MODE (in_rtx) != VOIDmode)
210 fprintf (outfile, ":%s", GET_MODE_NAME (GET_MODE (in_rtx)));
211 }
212 }
213
214 #ifndef GENERATOR_FILE
215 if (GET_CODE (in_rtx) == CONST_DOUBLE && FLOAT_MODE_P (GET_MODE (in_rtx)))
216 i = 5;
217 #endif
218
219 /* Get the format string and skip the first elements if we have handled
220 them already. */
221 format_ptr = GET_RTX_FORMAT (GET_CODE (in_rtx)) + i;
222 for (; i < GET_RTX_LENGTH (GET_CODE (in_rtx)); i++)
223 switch (*format_ptr++)
224 {
225 const char *str;
226
227 case 'T':
228 str = XTMPL (in_rtx, i);
229 goto string;
230
231 case 'S':
232 case 's':
233 str = XSTR (in_rtx, i);
234 string:
235
236 if (str == 0)
237 fputs (dump_for_graph ? " \\\"\\\"" : " \"\"", outfile);
238 else
239 {
240 if (dump_for_graph)
241 fprintf (outfile, " (\\\"%s\\\")", str);
242 else
243 fprintf (outfile, " (\"%s\")", str);
244 }
245 sawclose = 1;
246 break;
247
248 /* 0 indicates a field for internal use that should not be printed.
249 An exception is the third field of a NOTE, where it indicates
250 that the field has several different valid contents. */
251 case '0':
252 if (i == 1 && REG_P (in_rtx))
253 {
254 if (REGNO (in_rtx) != ORIGINAL_REGNO (in_rtx))
255 fprintf (outfile, " [%d]", ORIGINAL_REGNO (in_rtx));
256 }
257 #ifndef GENERATOR_FILE
258 else if (i == 1 && GET_CODE (in_rtx) == SYMBOL_REF)
259 {
260 int flags = SYMBOL_REF_FLAGS (in_rtx);
261 if (flags)
262 fprintf (outfile, " [flags 0x%x]", flags);
263 }
264 else if (i == 2 && GET_CODE (in_rtx) == SYMBOL_REF)
265 {
266 tree decl = SYMBOL_REF_DECL (in_rtx);
267 if (decl)
268 print_node_brief (outfile, "", decl, 0);
269 }
270 #endif
271 else if (i == 4 && NOTE_P (in_rtx))
272 {
273 switch (NOTE_LINE_NUMBER (in_rtx))
274 {
275 case NOTE_INSN_EH_REGION_BEG:
276 case NOTE_INSN_EH_REGION_END:
277 if (flag_dump_unnumbered)
278 fprintf (outfile, " #");
279 else
280 fprintf (outfile, " %d", NOTE_EH_HANDLER (in_rtx));
281 sawclose = 1;
282 break;
283
284 case NOTE_INSN_BLOCK_BEG:
285 case NOTE_INSN_BLOCK_END:
286 #ifndef GENERATOR_FILE
287 dump_addr (outfile, " ", NOTE_BLOCK (in_rtx));
288 #endif
289 sawclose = 1;
290 break;
291
292 case NOTE_INSN_BASIC_BLOCK:
293 {
294 #ifndef GENERATOR_FILE
295 basic_block bb = NOTE_BASIC_BLOCK (in_rtx);
296 if (bb != 0)
297 fprintf (outfile, " [bb %d]", bb->index);
298 #endif
299 break;
300 }
301
302 case NOTE_INSN_EXPECTED_VALUE:
303 indent += 2;
304 if (!sawclose)
305 fprintf (outfile, " ");
306 print_rtx (NOTE_EXPECTED_VALUE (in_rtx));
307 indent -= 2;
308 break;
309
310 case NOTE_INSN_DELETED_LABEL:
311 {
312 const char *label = NOTE_DELETED_LABEL_NAME (in_rtx);
313 if (label)
314 fprintf (outfile, " (\"%s\")", label);
315 else
316 fprintf (outfile, " \"\"");
317 }
318 break;
319
320 case NOTE_INSN_SWITCH_TEXT_SECTIONS:
321 {
322 #ifndef GENERATOR_FILE
323 basic_block bb = NOTE_BASIC_BLOCK (in_rtx);
324 if (bb != 0)
325 fprintf (outfile, " [bb %d]", bb->index);
326 #endif
327 break;
328 }
329
330 case NOTE_INSN_VAR_LOCATION:
331 #ifndef GENERATOR_FILE
332 fprintf (outfile, " (");
333 print_mem_expr (outfile, NOTE_VAR_LOCATION_DECL (in_rtx));
334 fprintf (outfile, " ");
335 print_rtx (NOTE_VAR_LOCATION_LOC (in_rtx));
336 fprintf (outfile, ")");
337 #endif
338 break;
339
340 default:
341 {
342 const char * const str = X0STR (in_rtx, i);
343
344 if (NOTE_LINE_NUMBER (in_rtx) < 0)
345 ;
346 else if (str == 0)
347 fputs (dump_for_graph ? " \\\"\\\"" : " \"\"", outfile);
348 else
349 {
350 if (dump_for_graph)
351 fprintf (outfile, " (\\\"%s\\\")", str);
352 else
353 fprintf (outfile, " (\"%s\")", str);
354 }
355 break;
356 }
357 }
358 }
359 break;
360
361 case 'e':
362 do_e:
363 indent += 2;
364 if (!sawclose)
365 fprintf (outfile, " ");
366 print_rtx (XEXP (in_rtx, i));
367 indent -= 2;
368 break;
369
370 case 'E':
371 case 'V':
372 indent += 2;
373 if (sawclose)
374 {
375 fprintf (outfile, "\n%s%*s",
376 print_rtx_head, indent * 2, "");
377 sawclose = 0;
378 }
379 fputs (" [", outfile);
380 if (NULL != XVEC (in_rtx, i))
381 {
382 indent += 2;
383 if (XVECLEN (in_rtx, i))
384 sawclose = 1;
385
386 for (j = 0; j < XVECLEN (in_rtx, i); j++)
387 print_rtx (XVECEXP (in_rtx, i, j));
388
389 indent -= 2;
390 }
391 if (sawclose)
392 fprintf (outfile, "\n%s%*s", print_rtx_head, indent * 2, "");
393
394 fputs ("]", outfile);
395 sawclose = 1;
396 indent -= 2;
397 break;
398
399 case 'w':
400 if (! flag_simple)
401 fprintf (outfile, " ");
402 fprintf (outfile, HOST_WIDE_INT_PRINT_DEC, XWINT (in_rtx, i));
403 if (! flag_simple)
404 fprintf (outfile, " [" HOST_WIDE_INT_PRINT_HEX "]",
405 XWINT (in_rtx, i));
406 break;
407
408 case 'i':
409 if (i == 4 && INSN_P (in_rtx))
410 {
411 #ifndef GENERATOR_FILE
412 /* Pretty-print insn locators. Ignore scoping as it is mostly
413 redundant with line number information and do not print anything
414 when there is no location information available. */
415 if (INSN_LOCATOR (in_rtx) && insn_file (in_rtx))
416 fprintf(outfile, " %s:%i", insn_file (in_rtx), insn_line (in_rtx));
417 #endif
418 }
419 else if (i == 6 && NOTE_P (in_rtx))
420 {
421 /* This field is only used for NOTE_INSN_DELETED_LABEL, and
422 other times often contains garbage from INSN->NOTE death. */
423 if (NOTE_LINE_NUMBER (in_rtx) == NOTE_INSN_DELETED_LABEL)
424 fprintf (outfile, " %d", XINT (in_rtx, i));
425 }
426 else
427 {
428 int value = XINT (in_rtx, i);
429 const char *name;
430
431 #ifndef GENERATOR_FILE
432 if (REG_P (in_rtx) && value < FIRST_PSEUDO_REGISTER)
433 fprintf (outfile, " %d %s", REGNO (in_rtx),
434 reg_names[REGNO (in_rtx)]);
435 else if (REG_P (in_rtx)
436 && value <= LAST_VIRTUAL_REGISTER)
437 {
438 if (value == VIRTUAL_INCOMING_ARGS_REGNUM)
439 fprintf (outfile, " %d virtual-incoming-args", value);
440 else if (value == VIRTUAL_STACK_VARS_REGNUM)
441 fprintf (outfile, " %d virtual-stack-vars", value);
442 else if (value == VIRTUAL_STACK_DYNAMIC_REGNUM)
443 fprintf (outfile, " %d virtual-stack-dynamic", value);
444 else if (value == VIRTUAL_OUTGOING_ARGS_REGNUM)
445 fprintf (outfile, " %d virtual-outgoing-args", value);
446 else if (value == VIRTUAL_CFA_REGNUM)
447 fprintf (outfile, " %d virtual-cfa", value);
448 else
449 fprintf (outfile, " %d virtual-reg-%d", value,
450 value-FIRST_VIRTUAL_REGISTER);
451 }
452 else
453 #endif
454 if (flag_dump_unnumbered
455 && (is_insn || NOTE_P (in_rtx)))
456 fputc ('#', outfile);
457 else
458 fprintf (outfile, " %d", value);
459
460 #ifndef GENERATOR_FILE
461 if (REG_P (in_rtx) && REG_ATTRS (in_rtx))
462 {
463 fputs (" [", outfile);
464 if (ORIGINAL_REGNO (in_rtx) != REGNO (in_rtx))
465 fprintf (outfile, "orig:%i", ORIGINAL_REGNO (in_rtx));
466 if (REG_EXPR (in_rtx))
467 print_mem_expr (outfile, REG_EXPR (in_rtx));
468
469 if (REG_OFFSET (in_rtx))
470 fprintf (outfile, "+" HOST_WIDE_INT_PRINT_DEC,
471 REG_OFFSET (in_rtx));
472 fputs (" ]", outfile);
473 }
474 #endif
475
476 if (is_insn && &INSN_CODE (in_rtx) == &XINT (in_rtx, i)
477 && XINT (in_rtx, i) >= 0
478 && (name = get_insn_name (XINT (in_rtx, i))) != NULL)
479 fprintf (outfile, " {%s}", name);
480 sawclose = 0;
481 }
482 break;
483
484 /* Print NOTE_INSN names rather than integer codes. */
485
486 case 'n':
487 if (XINT (in_rtx, i) >= (int) NOTE_INSN_BIAS
488 && XINT (in_rtx, i) < (int) NOTE_INSN_MAX)
489 fprintf (outfile, " %s", GET_NOTE_INSN_NAME (XINT (in_rtx, i)));
490 else
491 fprintf (outfile, " %d", XINT (in_rtx, i));
492 sawclose = 0;
493 break;
494
495 case 'u':
496 if (XEXP (in_rtx, i) != NULL)
497 {
498 rtx sub = XEXP (in_rtx, i);
499 enum rtx_code subc = GET_CODE (sub);
500
501 if (GET_CODE (in_rtx) == LABEL_REF)
502 {
503 if (subc == NOTE
504 && NOTE_LINE_NUMBER (sub) == NOTE_INSN_DELETED_LABEL)
505 {
506 if (flag_dump_unnumbered)
507 fprintf (outfile, " [# deleted]");
508 else
509 fprintf (outfile, " [%d deleted]", INSN_UID (sub));
510 sawclose = 0;
511 break;
512 }
513
514 if (subc != CODE_LABEL)
515 goto do_e;
516 }
517
518 if (flag_dump_unnumbered)
519 fputs (" #", outfile);
520 else
521 fprintf (outfile, " %d", INSN_UID (sub));
522 }
523 else
524 fputs (" 0", outfile);
525 sawclose = 0;
526 break;
527
528 case 'b':
529 #ifndef GENERATOR_FILE
530 if (XBITMAP (in_rtx, i) == NULL)
531 fputs (" {null}", outfile);
532 else
533 bitmap_print (outfile, XBITMAP (in_rtx, i), " {", "}");
534 #endif
535 sawclose = 0;
536 break;
537
538 case 't':
539 #ifndef GENERATOR_FILE
540 dump_addr (outfile, " ", XTREE (in_rtx, i));
541 #endif
542 break;
543
544 case '*':
545 fputs (" Unknown", outfile);
546 sawclose = 0;
547 break;
548
549 case 'B':
550 #ifndef GENERATOR_FILE
551 if (XBBDEF (in_rtx, i))
552 fprintf (outfile, " %i", XBBDEF (in_rtx, i)->index);
553 #endif
554 break;
555
556 default:
557 gcc_unreachable ();
558 }
559
560 switch (GET_CODE (in_rtx))
561 {
562 #ifndef GENERATOR_FILE
563 case MEM:
564 fprintf (outfile, " [" HOST_WIDE_INT_PRINT_DEC, MEM_ALIAS_SET (in_rtx));
565
566 if (MEM_EXPR (in_rtx))
567 print_mem_expr (outfile, MEM_EXPR (in_rtx));
568
569 if (MEM_OFFSET (in_rtx))
570 fprintf (outfile, "+" HOST_WIDE_INT_PRINT_DEC,
571 INTVAL (MEM_OFFSET (in_rtx)));
572
573 if (MEM_SIZE (in_rtx))
574 fprintf (outfile, " S" HOST_WIDE_INT_PRINT_DEC,
575 INTVAL (MEM_SIZE (in_rtx)));
576
577 if (MEM_ALIGN (in_rtx) != 1)
578 fprintf (outfile, " A%u", MEM_ALIGN (in_rtx));
579
580 fputc (']', outfile);
581 break;
582
583 case CONST_DOUBLE:
584 if (FLOAT_MODE_P (GET_MODE (in_rtx)))
585 {
586 char s[60];
587
588 real_to_decimal (s, CONST_DOUBLE_REAL_VALUE (in_rtx),
589 sizeof (s), 0, 1);
590 fprintf (outfile, " %s", s);
591
592 real_to_hexadecimal (s, CONST_DOUBLE_REAL_VALUE (in_rtx),
593 sizeof (s), 0, 1);
594 fprintf (outfile, " [%s]", s);
595 }
596 break;
597 #endif
598
599 case CODE_LABEL:
600 fprintf (outfile, " [%d uses]", LABEL_NUSES (in_rtx));
601 switch (LABEL_KIND (in_rtx))
602 {
603 case LABEL_NORMAL: break;
604 case LABEL_STATIC_ENTRY: fputs (" [entry]", outfile); break;
605 case LABEL_GLOBAL_ENTRY: fputs (" [global entry]", outfile); break;
606 case LABEL_WEAK_ENTRY: fputs (" [weak entry]", outfile); break;
607 default: gcc_unreachable ();
608 }
609 /* APPLE LOCAL begin for-fsf-4_4 3274130 5295549 */ \
610 if (LABEL_ALIGN_LOG (in_rtx) > 0)
611 fprintf (outfile, " [log_align %u skip %u]", LABEL_ALIGN_LOG (in_rtx),
612 LABEL_MAX_SKIP (in_rtx));
613 /* APPLE LOCAL end for-fsf-4_4 3274130 5295549 */ \
614 break;
615
616 default:
617 break;
618 }
619
620 if (dump_for_graph
621 && (is_insn || NOTE_P (in_rtx)
622 || LABEL_P (in_rtx) || BARRIER_P (in_rtx)))
623 sawclose = 0;
624 else
625 {
626 fputc (')', outfile);
627 sawclose = 1;
628 }
629 }
630
631 /* Print an rtx on the current line of FILE. Initially indent IND
632 characters. */
633
634 void
print_inline_rtx(FILE * outf,rtx x,int ind)635 print_inline_rtx (FILE *outf, rtx x, int ind)
636 {
637 int oldsaw = sawclose;
638 int oldindent = indent;
639
640 sawclose = 0;
641 indent = ind;
642 outfile = outf;
643 print_rtx (x);
644 sawclose = oldsaw;
645 indent = oldindent;
646 }
647
648 /* Call this function from the debugger to see what X looks like. */
649
650 void
debug_rtx(rtx x)651 debug_rtx (rtx x)
652 {
653 outfile = stderr;
654 sawclose = 0;
655 print_rtx (x);
656 fprintf (stderr, "\n");
657 }
658
659 /* Count of rtx's to print with debug_rtx_list.
660 This global exists because gdb user defined commands have no arguments. */
661
662 int debug_rtx_count = 0; /* 0 is treated as equivalent to 1 */
663
664 /* Call this function to print list from X on.
665
666 N is a count of the rtx's to print. Positive values print from the specified
667 rtx on. Negative values print a window around the rtx.
668 EG: -5 prints 2 rtx's on either side (in addition to the specified rtx). */
669
670 void
debug_rtx_list(rtx x,int n)671 debug_rtx_list (rtx x, int n)
672 {
673 int i,count;
674 rtx insn;
675
676 count = n == 0 ? 1 : n < 0 ? -n : n;
677
678 /* If we are printing a window, back up to the start. */
679
680 if (n < 0)
681 for (i = count / 2; i > 0; i--)
682 {
683 if (PREV_INSN (x) == 0)
684 break;
685 x = PREV_INSN (x);
686 }
687
688 for (i = count, insn = x; i > 0 && insn != 0; i--, insn = NEXT_INSN (insn))
689 {
690 debug_rtx (insn);
691 fprintf (stderr, "\n");
692 }
693 }
694
695 /* Call this function to print an rtx list from START to END inclusive. */
696
697 void
debug_rtx_range(rtx start,rtx end)698 debug_rtx_range (rtx start, rtx end)
699 {
700 while (1)
701 {
702 debug_rtx (start);
703 fprintf (stderr, "\n");
704 if (!start || start == end)
705 break;
706 start = NEXT_INSN (start);
707 }
708 }
709
710 /* Call this function to search an rtx list to find one with insn uid UID,
711 and then call debug_rtx_list to print it, using DEBUG_RTX_COUNT.
712 The found insn is returned to enable further debugging analysis. */
713
714 rtx
debug_rtx_find(rtx x,int uid)715 debug_rtx_find (rtx x, int uid)
716 {
717 while (x != 0 && INSN_UID (x) != uid)
718 x = NEXT_INSN (x);
719 if (x != 0)
720 {
721 debug_rtx_list (x, debug_rtx_count);
722 return x;
723 }
724 else
725 {
726 fprintf (stderr, "insn uid %d not found\n", uid);
727 return 0;
728 }
729 }
730
731 /* External entry point for printing a chain of insns
732 starting with RTX_FIRST onto file OUTF.
733 A blank line separates insns.
734
735 If RTX_FIRST is not an insn, then it alone is printed, with no newline. */
736
737 void
print_rtl(FILE * outf,rtx rtx_first)738 print_rtl (FILE *outf, rtx rtx_first)
739 {
740 rtx tmp_rtx;
741
742 outfile = outf;
743 sawclose = 0;
744
745 if (rtx_first == 0)
746 {
747 fputs (print_rtx_head, outf);
748 fputs ("(nil)\n", outf);
749 }
750 else
751 switch (GET_CODE (rtx_first))
752 {
753 case INSN:
754 case JUMP_INSN:
755 case CALL_INSN:
756 case NOTE:
757 case CODE_LABEL:
758 case BARRIER:
759 for (tmp_rtx = rtx_first; tmp_rtx != 0; tmp_rtx = NEXT_INSN (tmp_rtx))
760 if (! flag_dump_unnumbered
761 || !NOTE_P (tmp_rtx) || NOTE_LINE_NUMBER (tmp_rtx) < 0)
762 {
763 fputs (print_rtx_head, outfile);
764 print_rtx (tmp_rtx);
765 fprintf (outfile, "\n");
766 }
767 break;
768
769 default:
770 fputs (print_rtx_head, outfile);
771 print_rtx (rtx_first);
772 }
773 }
774
775 /* Like print_rtx, except specify a file. */
776 /* Return nonzero if we actually printed anything. */
777
778 int
print_rtl_single(FILE * outf,rtx x)779 print_rtl_single (FILE *outf, rtx x)
780 {
781 outfile = outf;
782 sawclose = 0;
783 if (! flag_dump_unnumbered
784 || !NOTE_P (x) || NOTE_LINE_NUMBER (x) < 0)
785 {
786 fputs (print_rtx_head, outfile);
787 print_rtx (x);
788 putc ('\n', outf);
789 return 1;
790 }
791 return 0;
792 }
793
794
795 /* Like print_rtl except without all the detail; for example,
796 if RTX is a CONST_INT then print in decimal format. */
797
798 void
print_simple_rtl(FILE * outf,rtx x)799 print_simple_rtl (FILE *outf, rtx x)
800 {
801 flag_simple = 1;
802 print_rtl (outf, x);
803 flag_simple = 0;
804 }
805