xref: /dragonfly/contrib/gcc-8.0/gcc/print-tree.c (revision e6d22e9b)
1 /* Prints out tree in human readable form - GCC
2    Copyright (C) 1990-2018 Free Software Foundation, Inc.
3 
4 This file is part of GCC.
5 
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.
10 
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.
15 
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/>.  */
19 
20 
21 #include "config.h"
22 #include "system.h"
23 #include "coretypes.h"
24 #include "tm.h"
25 #include "tree.h"
26 #include "cgraph.h"
27 #include "diagnostic.h"
28 #include "varasm.h"
29 #include "print-rtl.h"
30 #include "stor-layout.h"
31 #include "langhooks.h"
32 #include "tree-iterator.h"
33 #include "gimple-pretty-print.h" /* FIXME */
34 #include "tree-cfg.h"
35 #include "dumpfile.h"
36 #include "print-tree.h"
37 
38 /* Define the hash table of nodes already seen.
39    Such nodes are not repeated; brief cross-references are used.  */
40 
41 #define HASH_SIZE 37
42 
43 static hash_set<tree> *table = NULL;
44 
45 /* Print PREFIX and ADDR to FILE.  */
46 void
47 dump_addr (FILE *file, const char *prefix, const void *addr)
48 {
49   if (flag_dump_noaddr || flag_dump_unnumbered)
50     fprintf (file, "%s#", prefix);
51   else
52     fprintf (file, "%s" HOST_PTR_PRINTF, prefix, addr);
53 }
54 
55 /* Print a node in brief fashion, with just the code, address and name.  */
56 
57 void
58 print_node_brief (FILE *file, const char *prefix, const_tree node, int indent)
59 {
60   enum tree_code_class tclass;
61 
62   if (node == 0)
63     return;
64 
65   tclass = TREE_CODE_CLASS (TREE_CODE (node));
66 
67   /* Always print the slot this node is in, and its code, address and
68      name if any.  */
69   if (indent > 0)
70     fprintf (file, " ");
71   fprintf (file, "%s <%s", prefix, get_tree_code_name (TREE_CODE (node)));
72   dump_addr (file, " ", node);
73 
74   if (tclass == tcc_declaration)
75     {
76       if (DECL_NAME (node))
77 	fprintf (file, " %s", IDENTIFIER_POINTER (DECL_NAME (node)));
78       else if (TREE_CODE (node) == LABEL_DECL
79 	       && LABEL_DECL_UID (node) != -1)
80 	{
81 	  if (dump_flags & TDF_NOUID)
82 	    fprintf (file, " L.xxxx");
83 	  else
84 	    fprintf (file, " L.%d", (int) LABEL_DECL_UID (node));
85 	}
86       else
87 	{
88 	  if (dump_flags & TDF_NOUID)
89 	    fprintf (file, " %c.xxxx",
90 		     TREE_CODE (node) == CONST_DECL ? 'C' : 'D');
91 	  else
92 	    fprintf (file, " %c.%u",
93 		     TREE_CODE (node) == CONST_DECL ? 'C' : 'D',
94 		     DECL_UID (node));
95 	}
96     }
97   else if (tclass == tcc_type)
98     {
99       if (TYPE_NAME (node))
100 	{
101 	  if (TREE_CODE (TYPE_NAME (node)) == IDENTIFIER_NODE)
102 	    fprintf (file, " %s", IDENTIFIER_POINTER (TYPE_NAME (node)));
103 	  else if (TREE_CODE (TYPE_NAME (node)) == TYPE_DECL
104 		   && DECL_NAME (TYPE_NAME (node)))
105 	    fprintf (file, " %s",
106 		     IDENTIFIER_POINTER (DECL_NAME (TYPE_NAME (node))));
107 	}
108       if (!ADDR_SPACE_GENERIC_P (TYPE_ADDR_SPACE (node)))
109 	fprintf (file, " address-space-%d", TYPE_ADDR_SPACE (node));
110     }
111   if (TREE_CODE (node) == IDENTIFIER_NODE)
112     fprintf (file, " %s", IDENTIFIER_POINTER (node));
113 
114   /* We might as well always print the value of an integer or real.  */
115   if (TREE_CODE (node) == INTEGER_CST)
116     {
117       if (TREE_OVERFLOW (node))
118 	fprintf (file, " overflow");
119 
120       fprintf (file, " ");
121       print_dec (wi::to_wide (node), file, TYPE_SIGN (TREE_TYPE (node)));
122     }
123   if (TREE_CODE (node) == REAL_CST)
124     {
125       REAL_VALUE_TYPE d;
126 
127       if (TREE_OVERFLOW (node))
128 	fprintf (file, " overflow");
129 
130       d = TREE_REAL_CST (node);
131       if (REAL_VALUE_ISINF (d))
132 	fprintf (file,  REAL_VALUE_NEGATIVE (d) ? " -Inf" : " Inf");
133       else if (REAL_VALUE_ISNAN (d))
134 	fprintf (file, " Nan");
135       else
136 	{
137 	  char string[60];
138 	  real_to_decimal (string, &d, sizeof (string), 0, 1);
139 	  fprintf (file, " %s", string);
140 	}
141     }
142   if (TREE_CODE (node) == FIXED_CST)
143     {
144       FIXED_VALUE_TYPE f;
145       char string[60];
146 
147       if (TREE_OVERFLOW (node))
148 	fprintf (file, " overflow");
149 
150       f = TREE_FIXED_CST (node);
151       fixed_to_decimal (string, &f, sizeof (string));
152       fprintf (file, " %s", string);
153     }
154 
155   fprintf (file, ">");
156 }
157 
158 void
159 indent_to (FILE *file, int column)
160 {
161   int i;
162 
163   /* Since this is the long way, indent to desired column.  */
164   if (column > 0)
165     fprintf (file, "\n");
166   for (i = 0; i < column; i++)
167     fprintf (file, " ");
168 }
169 
170 /* Print the node NODE in full on file FILE, preceded by PREFIX,
171    starting in column INDENT.  */
172 
173 void
174 print_node (FILE *file, const char *prefix, tree node, int indent,
175 	    bool brief_for_visited)
176 {
177   machine_mode mode;
178   enum tree_code_class tclass;
179   int len;
180   int i;
181   expanded_location xloc;
182   enum tree_code code;
183 
184   if (node == 0)
185     return;
186 
187   code = TREE_CODE (node);
188   tclass = TREE_CODE_CLASS (code);
189 
190   /* Don't get too deep in nesting.  If the user wants to see deeper,
191      it is easy to use the address of a lowest-level node
192      as an argument in another call to debug_tree.  */
193 
194   if (indent > 24)
195     {
196       print_node_brief (file, prefix, node, indent);
197       return;
198     }
199 
200   if (indent > 8 && (tclass == tcc_type || tclass == tcc_declaration))
201     {
202       print_node_brief (file, prefix, node, indent);
203       return;
204     }
205 
206   /* It is unsafe to look at any other fields of an ERROR_MARK node.  */
207   if (code == ERROR_MARK)
208     {
209       print_node_brief (file, prefix, node, indent);
210       return;
211     }
212 
213   /* Allow this function to be called if the table is not there.  */
214   if (table)
215     {
216       /* If node is in the table, just mention its address.  */
217       if (table->contains (node) && brief_for_visited)
218 	{
219 	  print_node_brief (file, prefix, node, indent);
220 	  return;
221 	}
222 
223       table->add (node);
224     }
225 
226   /* Indent to the specified column, since this is the long form.  */
227   indent_to (file, indent);
228 
229   /* Print the slot this node is in, and its code, and address.  */
230   fprintf (file, "%s <%s", prefix, get_tree_code_name (code));
231   dump_addr (file, " ", node);
232 
233   /* Print the name, if any.  */
234   if (tclass == tcc_declaration)
235     {
236       if (DECL_NAME (node))
237 	fprintf (file, " %s", IDENTIFIER_POINTER (DECL_NAME (node)));
238       else if (code == LABEL_DECL
239 	       && LABEL_DECL_UID (node) != -1)
240 	{
241 	  if (dump_flags & TDF_NOUID)
242 	    fprintf (file, " L.xxxx");
243 	  else
244 	    fprintf (file, " L.%d", (int) LABEL_DECL_UID (node));
245 	}
246       else
247 	{
248 	  if (dump_flags & TDF_NOUID)
249 	    fprintf (file, " %c.xxxx", code == CONST_DECL ? 'C' : 'D');
250 	  else
251 	    fprintf (file, " %c.%u", code == CONST_DECL ? 'C' : 'D',
252 		     DECL_UID (node));
253 	}
254     }
255   else if (tclass == tcc_type)
256     {
257       if (TYPE_NAME (node))
258 	{
259 	  if (TREE_CODE (TYPE_NAME (node)) == IDENTIFIER_NODE)
260 	    fprintf (file, " %s", IDENTIFIER_POINTER (TYPE_NAME (node)));
261 	  else if (TREE_CODE (TYPE_NAME (node)) == TYPE_DECL
262 		   && DECL_NAME (TYPE_NAME (node)))
263 	    fprintf (file, " %s",
264 		     IDENTIFIER_POINTER (DECL_NAME (TYPE_NAME (node))));
265 	}
266     }
267   if (code == IDENTIFIER_NODE)
268     fprintf (file, " %s", IDENTIFIER_POINTER (node));
269 
270   if (code == INTEGER_CST)
271     {
272       if (indent <= 4)
273 	print_node_brief (file, "type", TREE_TYPE (node), indent + 4);
274     }
275   else if (CODE_CONTAINS_STRUCT (code, TS_TYPED))
276     {
277       print_node (file, "type", TREE_TYPE (node), indent + 4);
278       if (TREE_TYPE (node))
279 	indent_to (file, indent + 3);
280     }
281 
282   if (!TYPE_P (node) && TREE_SIDE_EFFECTS (node))
283     fputs (" side-effects", file);
284 
285   if (TYPE_P (node) ? TYPE_READONLY (node) : TREE_READONLY (node))
286     fputs (" readonly", file);
287   if (TYPE_P (node) && TYPE_ATOMIC (node))
288     fputs (" atomic", file);
289   if (!TYPE_P (node) && TREE_CONSTANT (node))
290     fputs (" constant", file);
291   else if (TYPE_P (node) && TYPE_SIZES_GIMPLIFIED (node))
292     fputs (" sizes-gimplified", file);
293 
294   if (TYPE_P (node) && !ADDR_SPACE_GENERIC_P (TYPE_ADDR_SPACE (node)))
295     fprintf (file, " address-space-%d", TYPE_ADDR_SPACE (node));
296 
297   if (TREE_ADDRESSABLE (node))
298     fputs (" addressable", file);
299   if (TREE_THIS_VOLATILE (node))
300     fputs (" volatile", file);
301   if (TREE_ASM_WRITTEN (node))
302     fputs (" asm_written", file);
303   if (TREE_USED (node))
304     fputs (" used", file);
305   if (TREE_NOTHROW (node))
306     fputs (" nothrow", file);
307   if (TREE_PUBLIC (node))
308     fputs (" public", file);
309   if (TREE_PRIVATE (node))
310     fputs (" private", file);
311   if (TREE_PROTECTED (node))
312     fputs (" protected", file);
313   if (TREE_STATIC (node))
314     fputs (code == CALL_EXPR ? " must-tail-call" : " static", file);
315   if (TREE_DEPRECATED (node))
316     fputs (" deprecated", file);
317   if (TREE_VISITED (node))
318     fputs (" visited", file);
319 
320   if (code != TREE_VEC && code != INTEGER_CST && code != SSA_NAME)
321     {
322       if (TREE_LANG_FLAG_0 (node))
323 	fputs (" tree_0", file);
324       if (TREE_LANG_FLAG_1 (node))
325 	fputs (" tree_1", file);
326       if (TREE_LANG_FLAG_2 (node))
327 	fputs (" tree_2", file);
328       if (TREE_LANG_FLAG_3 (node))
329 	fputs (" tree_3", file);
330       if (TREE_LANG_FLAG_4 (node))
331 	fputs (" tree_4", file);
332       if (TREE_LANG_FLAG_5 (node))
333 	fputs (" tree_5", file);
334       if (TREE_LANG_FLAG_6 (node))
335 	fputs (" tree_6", file);
336     }
337 
338   /* DECL_ nodes have additional attributes.  */
339 
340   switch (TREE_CODE_CLASS (code))
341     {
342     case tcc_declaration:
343       if (CODE_CONTAINS_STRUCT (code, TS_DECL_COMMON))
344 	{
345 	  if (DECL_UNSIGNED (node))
346 	    fputs (" unsigned", file);
347 	  if (DECL_IGNORED_P (node))
348 	    fputs (" ignored", file);
349 	  if (DECL_ABSTRACT_P (node))
350 	    fputs (" abstract", file);
351 	  if (DECL_EXTERNAL (node))
352 	    fputs (" external", file);
353 	  if (DECL_NONLOCAL (node))
354 	    fputs (" nonlocal", file);
355 	}
356       if (CODE_CONTAINS_STRUCT (code, TS_DECL_WITH_VIS))
357 	{
358 	  if (DECL_WEAK (node))
359 	    fputs (" weak", file);
360 	  if (DECL_IN_SYSTEM_HEADER (node))
361 	    fputs (" in_system_header", file);
362 	}
363       if (CODE_CONTAINS_STRUCT (code, TS_DECL_WRTL)
364 	  && code != LABEL_DECL
365 	  && code != FUNCTION_DECL
366 	  && DECL_REGISTER (node))
367 	fputs (" regdecl", file);
368 
369       if (code == TYPE_DECL && TYPE_DECL_SUPPRESS_DEBUG (node))
370 	fputs (" suppress-debug", file);
371 
372       if (code == FUNCTION_DECL
373 	  && DECL_FUNCTION_SPECIFIC_TARGET (node))
374 	fputs (" function-specific-target", file);
375       if (code == FUNCTION_DECL
376 	  && DECL_FUNCTION_SPECIFIC_OPTIMIZATION (node))
377 	fputs (" function-specific-opt", file);
378       if (code == FUNCTION_DECL && DECL_DECLARED_INLINE_P (node))
379 	fputs (" autoinline", file);
380       if (code == FUNCTION_DECL && DECL_UNINLINABLE (node))
381 	fputs (" uninlinable", file);
382       if (code == FUNCTION_DECL && DECL_BUILT_IN (node))
383 	fputs (" built-in", file);
384       if (code == FUNCTION_DECL && DECL_STATIC_CHAIN (node))
385 	fputs (" static-chain", file);
386       if (TREE_CODE (node) == FUNCTION_DECL && decl_is_tm_clone (node))
387 	fputs (" tm-clone", file);
388 
389       if (code == FIELD_DECL && DECL_PACKED (node))
390 	fputs (" packed", file);
391       if (code == FIELD_DECL && DECL_BIT_FIELD (node))
392 	fputs (" bit-field", file);
393       if (code == FIELD_DECL && DECL_NONADDRESSABLE_P (node))
394 	fputs (" nonaddressable", file);
395 
396       if (code == LABEL_DECL && EH_LANDING_PAD_NR (node))
397 	fprintf (file, " landing-pad:%d", EH_LANDING_PAD_NR (node));
398 
399       if (code == VAR_DECL && DECL_IN_TEXT_SECTION (node))
400 	fputs (" in-text-section", file);
401       if (code == VAR_DECL && DECL_IN_CONSTANT_POOL (node))
402 	fputs (" in-constant-pool", file);
403       if (code == VAR_DECL && DECL_COMMON (node))
404 	fputs (" common", file);
405       if ((code == VAR_DECL || code == PARM_DECL) && DECL_READ_P (node))
406 	fputs (" read", file);
407       if (code == VAR_DECL && DECL_THREAD_LOCAL_P (node))
408 	{
409 	  fputs (" ", file);
410 	  fputs (tls_model_names[DECL_TLS_MODEL (node)], file);
411 	}
412 
413       if (CODE_CONTAINS_STRUCT (code, TS_DECL_COMMON))
414 	{
415 	  if (DECL_VIRTUAL_P (node))
416 	    fputs (" virtual", file);
417 	  if (DECL_PRESERVE_P (node))
418 	    fputs (" preserve", file);
419 	  if (DECL_LANG_FLAG_0 (node))
420 	    fputs (" decl_0", file);
421 	  if (DECL_LANG_FLAG_1 (node))
422 	    fputs (" decl_1", file);
423 	  if (DECL_LANG_FLAG_2 (node))
424 	    fputs (" decl_2", file);
425 	  if (DECL_LANG_FLAG_3 (node))
426 	    fputs (" decl_3", file);
427 	  if (DECL_LANG_FLAG_4 (node))
428 	    fputs (" decl_4", file);
429 	  if (DECL_LANG_FLAG_5 (node))
430 	    fputs (" decl_5", file);
431 	  if (DECL_LANG_FLAG_6 (node))
432 	    fputs (" decl_6", file);
433 	  if (DECL_LANG_FLAG_7 (node))
434 	    fputs (" decl_7", file);
435 
436 	  mode = DECL_MODE (node);
437 	  fprintf (file, " %s", GET_MODE_NAME (mode));
438 	}
439 
440       if ((code == VAR_DECL || code == PARM_DECL || code == RESULT_DECL)
441 	  && DECL_BY_REFERENCE (node))
442 	fputs (" passed-by-reference", file);
443 
444       if (CODE_CONTAINS_STRUCT (code, TS_DECL_WITH_VIS)  && DECL_DEFER_OUTPUT (node))
445 	fputs (" defer-output", file);
446 
447 
448       xloc = expand_location (DECL_SOURCE_LOCATION (node));
449       fprintf (file, " %s:%d:%d", xloc.file, xloc.line,
450 	       xloc.column);
451 
452       if (CODE_CONTAINS_STRUCT (code, TS_DECL_COMMON))
453 	{
454 	  print_node (file, "size", DECL_SIZE (node), indent + 4);
455 	  print_node (file, "unit-size", DECL_SIZE_UNIT (node), indent + 4);
456 
457 	  if (code != FUNCTION_DECL || DECL_BUILT_IN (node))
458 	    indent_to (file, indent + 3);
459 
460 	  if (DECL_USER_ALIGN (node))
461 	    fprintf (file, " user");
462 
463 	  fprintf (file, " align:%d warn_if_not_align:%d",
464 		   DECL_ALIGN (node), DECL_WARN_IF_NOT_ALIGN (node));
465 	  if (code == FIELD_DECL)
466 	    fprintf (file, " offset_align " HOST_WIDE_INT_PRINT_UNSIGNED,
467 		     DECL_OFFSET_ALIGN (node));
468 
469 	  if (code == FUNCTION_DECL && DECL_BUILT_IN (node))
470 	    {
471 	      if (DECL_BUILT_IN_CLASS (node) == BUILT_IN_MD)
472 		fprintf (file, " built-in: BUILT_IN_MD:%d", DECL_FUNCTION_CODE (node));
473 	      else
474 		fprintf (file, " built-in: %s:%s",
475 			 built_in_class_names[(int) DECL_BUILT_IN_CLASS (node)],
476 			 built_in_names[(int) DECL_FUNCTION_CODE (node)]);
477 	    }
478 	}
479       if (code == FIELD_DECL)
480 	{
481 	  print_node (file, "offset", DECL_FIELD_OFFSET (node), indent + 4);
482 	  print_node (file, "bit-offset", DECL_FIELD_BIT_OFFSET (node),
483 		      indent + 4);
484 	  if (DECL_BIT_FIELD_TYPE (node))
485 	    print_node (file, "bit_field_type", DECL_BIT_FIELD_TYPE (node),
486 			indent + 4);
487 	}
488 
489       print_node_brief (file, "context", DECL_CONTEXT (node), indent + 4);
490 
491       if (CODE_CONTAINS_STRUCT (code, TS_DECL_COMMON))
492 	{
493 	  print_node (file, "attributes",
494 			    DECL_ATTRIBUTES (node), indent + 4);
495 	  if (code != PARM_DECL)
496 	    print_node_brief (file, "initial", DECL_INITIAL (node),
497 			      indent + 4);
498 	}
499       if (CODE_CONTAINS_STRUCT (code, TS_DECL_WRTL))
500 	{
501 	  print_node_brief (file, "abstract_origin",
502 			    DECL_ABSTRACT_ORIGIN (node), indent + 4);
503 	}
504       if (CODE_CONTAINS_STRUCT (code, TS_DECL_NON_COMMON))
505 	{
506 	  print_node (file, "result", DECL_RESULT_FLD (node), indent + 4);
507 	}
508 
509       lang_hooks.print_decl (file, node, indent);
510 
511       if (DECL_RTL_SET_P (node))
512 	{
513 	  indent_to (file, indent + 4);
514 	  print_rtl (file, DECL_RTL (node));
515 	}
516 
517       if (code == PARM_DECL)
518 	{
519 	  print_node (file, "arg-type", DECL_ARG_TYPE (node), indent + 4);
520 
521 	  if (DECL_INCOMING_RTL (node) != 0)
522 	    {
523 	      indent_to (file, indent + 4);
524 	      fprintf (file, "incoming-rtl ");
525 	      print_rtl (file, DECL_INCOMING_RTL (node));
526 	    }
527 	}
528       else if (code == FUNCTION_DECL
529 	       && DECL_STRUCT_FUNCTION (node) != 0)
530 	{
531 	  print_node (file, "arguments", DECL_ARGUMENTS (node), indent + 4);
532 	  indent_to (file, indent + 4);
533 	  dump_addr (file, "struct-function ", DECL_STRUCT_FUNCTION (node));
534 	}
535 
536       if ((code == VAR_DECL || code == PARM_DECL)
537 	  && DECL_HAS_VALUE_EXPR_P (node))
538 	print_node (file, "value-expr", DECL_VALUE_EXPR (node), indent + 4);
539 
540       /* Print the decl chain only if decl is at second level.  */
541       if (indent == 4)
542 	print_node (file, "chain", TREE_CHAIN (node), indent + 4);
543       else
544 	print_node_brief (file, "chain", TREE_CHAIN (node), indent + 4);
545       break;
546 
547     case tcc_type:
548       if (TYPE_UNSIGNED (node))
549 	fputs (" unsigned", file);
550 
551       if (TYPE_NO_FORCE_BLK (node))
552 	fputs (" no-force-blk", file);
553 
554       if (TYPE_STRING_FLAG (node))
555 	fputs (" string-flag", file);
556 
557       if (TYPE_NEEDS_CONSTRUCTING (node))
558 	fputs (" needs-constructing", file);
559 
560       if ((code == RECORD_TYPE
561 	   || code == UNION_TYPE
562 	   || code == QUAL_UNION_TYPE
563 	   || code == ARRAY_TYPE)
564 	  && TYPE_REVERSE_STORAGE_ORDER (node))
565 	fputs (" reverse-storage-order", file);
566 
567       /* The transparent-union flag is used for different things in
568 	 different nodes.  */
569       if ((code == UNION_TYPE || code == RECORD_TYPE)
570 	  && TYPE_TRANSPARENT_AGGR (node))
571 	fputs (" transparent-aggr", file);
572       else if (code == ARRAY_TYPE
573 	       && TYPE_NONALIASED_COMPONENT (node))
574 	fputs (" nonaliased-component", file);
575 
576       if (TYPE_PACKED (node))
577 	fputs (" packed", file);
578 
579       if (TYPE_RESTRICT (node))
580 	fputs (" restrict", file);
581 
582       if (TYPE_LANG_FLAG_0 (node))
583 	fputs (" type_0", file);
584       if (TYPE_LANG_FLAG_1 (node))
585 	fputs (" type_1", file);
586       if (TYPE_LANG_FLAG_2 (node))
587 	fputs (" type_2", file);
588       if (TYPE_LANG_FLAG_3 (node))
589 	fputs (" type_3", file);
590       if (TYPE_LANG_FLAG_4 (node))
591 	fputs (" type_4", file);
592       if (TYPE_LANG_FLAG_5 (node))
593 	fputs (" type_5", file);
594       if (TYPE_LANG_FLAG_6 (node))
595 	fputs (" type_6", file);
596       if (TYPE_LANG_FLAG_7 (node))
597 	fputs (" type_7", file);
598 
599       mode = TYPE_MODE (node);
600       fprintf (file, " %s", GET_MODE_NAME (mode));
601 
602       print_node (file, "size", TYPE_SIZE (node), indent + 4);
603       print_node (file, "unit-size", TYPE_SIZE_UNIT (node), indent + 4);
604       indent_to (file, indent + 3);
605 
606       if (TYPE_USER_ALIGN (node))
607 	fprintf (file, " user");
608 
609       fprintf (file, " align:%d warn_if_not_align:%d symtab:%d alias-set "
610 	       HOST_WIDE_INT_PRINT_DEC,
611 	       TYPE_ALIGN (node), TYPE_WARN_IF_NOT_ALIGN (node),
612 	       TYPE_SYMTAB_ADDRESS (node),
613 	       (HOST_WIDE_INT) TYPE_ALIAS_SET (node));
614 
615       if (TYPE_STRUCTURAL_EQUALITY_P (node))
616 	fprintf (file, " structural-equality");
617       else
618 	dump_addr (file, " canonical-type ", TYPE_CANONICAL (node));
619 
620       print_node (file, "attributes", TYPE_ATTRIBUTES (node), indent + 4);
621 
622       if (INTEGRAL_TYPE_P (node) || code == REAL_TYPE
623 	  || code == FIXED_POINT_TYPE)
624 	{
625 	  fprintf (file, " precision:%d", TYPE_PRECISION (node));
626 	  print_node_brief (file, "min", TYPE_MIN_VALUE (node), indent + 4);
627 	  print_node_brief (file, "max", TYPE_MAX_VALUE (node), indent + 4);
628 	}
629 
630       if (code == ENUMERAL_TYPE)
631 	print_node (file, "values", TYPE_VALUES (node), indent + 4);
632       else if (code == ARRAY_TYPE)
633 	print_node (file, "domain", TYPE_DOMAIN (node), indent + 4);
634       else if (code == VECTOR_TYPE)
635 	{
636 	  fprintf (file, " nunits:");
637 	  print_dec (TYPE_VECTOR_SUBPARTS (node), file);
638 	}
639       else if (code == RECORD_TYPE
640 	       || code == UNION_TYPE
641 	       || code == QUAL_UNION_TYPE)
642 	print_node (file, "fields", TYPE_FIELDS (node), indent + 4);
643       else if (code == FUNCTION_TYPE
644 	       || code == METHOD_TYPE)
645 	{
646 	  if (TYPE_METHOD_BASETYPE (node))
647 	    print_node_brief (file, "method basetype",
648 			      TYPE_METHOD_BASETYPE (node), indent + 4);
649 	  print_node (file, "arg-types", TYPE_ARG_TYPES (node), indent + 4);
650 	}
651       else if (code == OFFSET_TYPE)
652 	print_node_brief (file, "basetype", TYPE_OFFSET_BASETYPE (node),
653 			  indent + 4);
654 
655       if (TYPE_CONTEXT (node))
656 	print_node_brief (file, "context", TYPE_CONTEXT (node), indent + 4);
657 
658       lang_hooks.print_type (file, node, indent);
659 
660       if (TYPE_POINTER_TO (node) || TREE_CHAIN (node))
661 	indent_to (file, indent + 3);
662 
663       print_node_brief (file, "pointer_to_this", TYPE_POINTER_TO (node),
664 			indent + 4);
665       print_node_brief (file, "reference_to_this", TYPE_REFERENCE_TO (node),
666 			indent + 4);
667       print_node_brief (file, "chain", TREE_CHAIN (node), indent + 4);
668       break;
669 
670     case tcc_expression:
671     case tcc_comparison:
672     case tcc_unary:
673     case tcc_binary:
674     case tcc_reference:
675     case tcc_statement:
676     case tcc_vl_exp:
677       if (code == BIND_EXPR)
678 	{
679 	  print_node (file, "vars", TREE_OPERAND (node, 0), indent + 4);
680 	  print_node (file, "body", TREE_OPERAND (node, 1), indent + 4);
681 	  print_node (file, "block", TREE_OPERAND (node, 2), indent + 4);
682 	  break;
683 	}
684       if (code == CALL_EXPR)
685 	{
686 	  call_expr_arg_iterator iter;
687 	  tree arg;
688 	  print_node (file, "fn", CALL_EXPR_FN (node), indent + 4);
689 	  print_node (file, "static_chain", CALL_EXPR_STATIC_CHAIN (node),
690 		      indent + 4);
691 	  i = 0;
692 	  FOR_EACH_CALL_EXPR_ARG (arg, iter, node)
693 	    {
694 	      /* Buffer big enough to format a 32-bit UINT_MAX into, plus
695 		 the text.  */
696 	      char temp[15];
697 	      sprintf (temp, "arg:%u", i);
698 	      print_node (file, temp, arg, indent + 4);
699 	      i++;
700 	    }
701 	}
702       else
703 	{
704 	  len = TREE_OPERAND_LENGTH (node);
705 
706 	  for (i = 0; i < len; i++)
707 	    {
708 	      /* Buffer big enough to format a 32-bit UINT_MAX into, plus
709 		 the text.  */
710 	      char temp[15];
711 
712 	      sprintf (temp, "arg:%d", i);
713 	      print_node (file, temp, TREE_OPERAND (node, i), indent + 4);
714 	    }
715 	}
716       if (CODE_CONTAINS_STRUCT (code, TS_COMMON))
717 	print_node (file, "chain", TREE_CHAIN (node), indent + 4);
718       break;
719 
720     case tcc_constant:
721     case tcc_exceptional:
722       switch (code)
723 	{
724 	case INTEGER_CST:
725 	  if (TREE_OVERFLOW (node))
726 	    fprintf (file, " overflow");
727 
728 	  fprintf (file, " ");
729 	  print_dec (wi::to_wide (node), file, TYPE_SIGN (TREE_TYPE (node)));
730 	  break;
731 
732 	case REAL_CST:
733 	  {
734 	    REAL_VALUE_TYPE d;
735 
736 	    if (TREE_OVERFLOW (node))
737 	      fprintf (file, " overflow");
738 
739 	    d = TREE_REAL_CST (node);
740 	    if (REAL_VALUE_ISINF (d))
741 	      fprintf (file,  REAL_VALUE_NEGATIVE (d) ? " -Inf" : " Inf");
742 	    else if (REAL_VALUE_ISNAN (d))
743 	      fprintf (file, " Nan");
744 	    else
745 	      {
746 		char string[64];
747 		real_to_decimal (string, &d, sizeof (string), 0, 1);
748 		fprintf (file, " %s", string);
749 	      }
750 	  }
751 	  break;
752 
753 	case FIXED_CST:
754 	  {
755 	    FIXED_VALUE_TYPE f;
756 	    char string[64];
757 
758 	    if (TREE_OVERFLOW (node))
759 	      fprintf (file, " overflow");
760 
761 	    f = TREE_FIXED_CST (node);
762 	    fixed_to_decimal (string, &f, sizeof (string));
763 	    fprintf (file, " %s", string);
764 	  }
765 	  break;
766 
767 	case VECTOR_CST:
768 	  {
769 	    /* Big enough for UINT_MAX plus the string below.  */
770 	    char buf[32];
771 
772 	    fprintf (file, " npatterns:%u nelts-per-pattern:%u",
773 		     VECTOR_CST_NPATTERNS (node),
774 		     VECTOR_CST_NELTS_PER_PATTERN (node));
775 	    unsigned int count = vector_cst_encoded_nelts (node);
776 	    for (unsigned int i = 0; i < count; ++i)
777 	      {
778 		sprintf (buf, "elt:%u: ", i);
779 		print_node (file, buf, VECTOR_CST_ENCODED_ELT (node, i),
780 			    indent + 4);
781 	      }
782 	  }
783 	  break;
784 
785 	case COMPLEX_CST:
786 	  print_node (file, "real", TREE_REALPART (node), indent + 4);
787 	  print_node (file, "imag", TREE_IMAGPART (node), indent + 4);
788 	  break;
789 
790 	case STRING_CST:
791 	  {
792 	    const char *p = TREE_STRING_POINTER (node);
793 	    int i = TREE_STRING_LENGTH (node);
794 	    fputs (" \"", file);
795 	    while (--i >= 0)
796 	      {
797 		char ch = *p++;
798 		if (ch >= ' ' && ch < 127)
799 		  putc (ch, file);
800 		else
801 		  fprintf (file, "\\%03o", ch & 0xFF);
802 	      }
803 	    fputc ('\"', file);
804 	  }
805 	  break;
806 
807 	case POLY_INT_CST:
808 	  {
809 	    char buf[10];
810 	    for (unsigned int i = 0; i < NUM_POLY_INT_COEFFS; ++i)
811 	      {
812 		snprintf (buf, sizeof (buf), "elt%u: ", i);
813 		print_node (file, buf, POLY_INT_CST_COEFF (node, i),
814 			    indent + 4);
815 	      }
816 	  }
817 	  break;
818 
819 	case IDENTIFIER_NODE:
820 	  lang_hooks.print_identifier (file, node, indent);
821 	  break;
822 
823 	case TREE_LIST:
824 	  print_node (file, "purpose", TREE_PURPOSE (node), indent + 4);
825 	  print_node (file, "value", TREE_VALUE (node), indent + 4);
826 	  print_node (file, "chain", TREE_CHAIN (node), indent + 4);
827 	  break;
828 
829 	case TREE_VEC:
830 	  len = TREE_VEC_LENGTH (node);
831 	  fprintf (file, " length:%d", len);
832 	  for (i = 0; i < len; i++)
833 	    if (TREE_VEC_ELT (node, i))
834 	      {
835 	      /* Buffer big enough to format a 32-bit UINT_MAX into, plus
836 		 the text.  */
837 		char temp[15];
838 		sprintf (temp, "elt:%d", i);
839 		print_node (file, temp, TREE_VEC_ELT (node, i), indent + 4);
840 	      }
841 	  break;
842 
843 	case CONSTRUCTOR:
844 	  {
845 	    unsigned HOST_WIDE_INT cnt;
846 	    tree index, value;
847 	    len = CONSTRUCTOR_NELTS (node);
848 	    fprintf (file, " length:%d", len);
849 	    FOR_EACH_CONSTRUCTOR_ELT (CONSTRUCTOR_ELTS (node),
850 				      cnt, index, value)
851 	      {
852 		print_node (file, "idx", index, indent + 4, false);
853 		print_node (file, "val", value, indent + 4, false);
854 	      }
855 	  }
856 	  break;
857 
858     	case STATEMENT_LIST:
859 	  dump_addr (file, " head ", node->stmt_list.head);
860 	  dump_addr (file, " tail ", node->stmt_list.tail);
861 	  fprintf (file, " stmts");
862 	  {
863 	    tree_stmt_iterator i;
864 	    for (i = tsi_start (node); !tsi_end_p (i); tsi_next (&i))
865 	      {
866 		/* Not printing the addresses of the (not-a-tree)
867 		   'struct tree_stmt_list_node's.  */
868 		dump_addr (file, " ", tsi_stmt (i));
869 	      }
870 	    fprintf (file, "\n");
871 	    for (i = tsi_start (node); !tsi_end_p (i); tsi_next (&i))
872 	      {
873 		/* Not printing the addresses of the (not-a-tree)
874 		   'struct tree_stmt_list_node's.  */
875 		print_node (file, "stmt", tsi_stmt (i), indent + 4);
876 	      }
877 	  }
878 	  break;
879 
880 	case BLOCK:
881 	  print_node (file, "vars", BLOCK_VARS (node), indent + 4);
882 	  print_node (file, "supercontext", BLOCK_SUPERCONTEXT (node),
883 		      indent + 4);
884 	  print_node (file, "subblocks", BLOCK_SUBBLOCKS (node), indent + 4);
885 	  print_node (file, "chain", BLOCK_CHAIN (node), indent + 4);
886 	  print_node (file, "abstract_origin",
887 		      BLOCK_ABSTRACT_ORIGIN (node), indent + 4);
888 	  break;
889 
890 	case SSA_NAME:
891 	  print_node_brief (file, "var", SSA_NAME_VAR (node), indent + 4);
892 	  indent_to (file, indent + 4);
893 	  fprintf (file, "def_stmt ");
894 	  {
895 	    pretty_printer buffer;
896 	    buffer.buffer->stream = file;
897 	    pp_gimple_stmt_1 (&buffer, SSA_NAME_DEF_STMT (node), indent + 4, 0);
898 	    pp_flush (&buffer);
899 	  }
900 
901 	  indent_to (file, indent + 4);
902 	  fprintf (file, "version:%u", SSA_NAME_VERSION (node));
903 	  if (SSA_NAME_OCCURS_IN_ABNORMAL_PHI (node))
904 	    fprintf (file, " in-abnormal-phi");
905 	  if (SSA_NAME_IN_FREE_LIST (node))
906 	    fprintf (file, " in-free-list");
907 
908 	  if (SSA_NAME_PTR_INFO (node))
909 	    {
910 	      indent_to (file, indent + 3);
911 	      if (SSA_NAME_PTR_INFO (node))
912 		dump_addr (file, " ptr-info ", SSA_NAME_PTR_INFO (node));
913 	    }
914 	  break;
915 
916 	case OMP_CLAUSE:
917 	    {
918 	      int i;
919 	      fprintf (file, " %s",
920 		       omp_clause_code_name[OMP_CLAUSE_CODE (node)]);
921 	      for (i = 0; i < omp_clause_num_ops[OMP_CLAUSE_CODE (node)]; i++)
922 		{
923 		  indent_to (file, indent + 4);
924 		  fprintf (file, "op-%d:", i);
925 		  print_node_brief (file, "", OMP_CLAUSE_OPERAND (node, i), 0);
926 		}
927 	    }
928 	  break;
929 
930 	case OPTIMIZATION_NODE:
931 	  cl_optimization_print (file, indent + 4, TREE_OPTIMIZATION (node));
932 	  break;
933 
934 	case TARGET_OPTION_NODE:
935 	  cl_target_option_print (file, indent + 4, TREE_TARGET_OPTION (node));
936 	  break;
937 	case IMPORTED_DECL:
938 	  fprintf (file, " imported-declaration");
939 	  print_node_brief (file, "associated-declaration",
940 			    IMPORTED_DECL_ASSOCIATED_DECL (node),
941 			    indent + 4);
942 	  break;
943 
944 	case TREE_BINFO:
945 	  fprintf (file, " bases:%d",
946 		   vec_safe_length (BINFO_BASE_BINFOS (node)));
947 	  print_node_brief (file, "offset", BINFO_OFFSET (node), indent + 4);
948 	  print_node_brief (file, "virtuals", BINFO_VIRTUALS (node),
949 			    indent + 4);
950 	  print_node_brief (file, "inheritance-chain",
951 			    BINFO_INHERITANCE_CHAIN (node),
952 			    indent + 4);
953 	  break;
954 
955 	default:
956 	  if (EXCEPTIONAL_CLASS_P (node))
957 	    lang_hooks.print_xnode (file, node, indent);
958 	  break;
959 	}
960 
961       break;
962     }
963 
964   if (EXPR_HAS_LOCATION (node))
965     {
966       expanded_location xloc = expand_location (EXPR_LOCATION (node));
967       indent_to (file, indent+4);
968       fprintf (file, "%s:%d:%d", xloc.file, xloc.line, xloc.column);
969 
970       /* Print the range, if any */
971       source_range r = EXPR_LOCATION_RANGE (node);
972       if (r.m_start)
973 	{
974 	  xloc = expand_location (r.m_start);
975 	  fprintf (file, " start: %s:%d:%d", xloc.file, xloc.line, xloc.column);
976 	}
977       else
978 	{
979 	  fprintf (file, " start: unknown");
980 	}
981       if (r.m_finish)
982 	{
983 	  xloc = expand_location (r.m_finish);
984 	  fprintf (file, " finish: %s:%d:%d", xloc.file, xloc.line, xloc.column);
985 	}
986       else
987 	{
988 	  fprintf (file, " finish: unknown");
989 	}
990     }
991 
992   fprintf (file, ">");
993 }
994 
995 
996 /* Print the node NODE on standard error, for debugging.
997    Most nodes referred to by this one are printed recursively
998    down to a depth of six.  */
999 
1000 DEBUG_FUNCTION void
1001 debug_tree (tree node)
1002 {
1003   table = new hash_set<tree> (HASH_SIZE);
1004   print_node (stderr, "", node, 0);
1005   delete table;
1006   table = NULL;
1007   putc ('\n', stderr);
1008 }
1009 
1010 DEBUG_FUNCTION void
1011 debug_raw (const tree_node &ref)
1012 {
1013   debug_tree (const_cast <tree> (&ref));
1014 }
1015 
1016 DEBUG_FUNCTION void
1017 debug_raw (const tree_node *ptr)
1018 {
1019   if (ptr)
1020     debug_raw (*ptr);
1021   else
1022     fprintf (stderr, "<nil>\n");
1023 }
1024 
1025 static void
1026 dump_tree_via_hooks (const tree_node *ptr, dump_flags_t options)
1027 {
1028   if (DECL_P (ptr))
1029     lang_hooks.print_decl (stderr, const_cast <tree_node*> (ptr), 0);
1030   else if (TYPE_P (ptr))
1031     lang_hooks.print_type (stderr, const_cast <tree_node*> (ptr), 0);
1032   else if (TREE_CODE (ptr) == IDENTIFIER_NODE)
1033     lang_hooks.print_identifier (stderr, const_cast <tree_node*> (ptr), 0);
1034   else
1035     print_generic_expr (stderr, const_cast <tree_node*> (ptr), options);
1036   fprintf (stderr, "\n");
1037 }
1038 
1039 DEBUG_FUNCTION void
1040 debug (const tree_node &ref)
1041 {
1042   dump_tree_via_hooks (&ref, 0);
1043 }
1044 
1045 DEBUG_FUNCTION void
1046 debug (const tree_node *ptr)
1047 {
1048   if (ptr)
1049     debug (*ptr);
1050   else
1051     fprintf (stderr, "<nil>\n");
1052 }
1053 
1054 DEBUG_FUNCTION void
1055 debug_head (const tree_node &ref)
1056 {
1057   debug (ref);
1058 }
1059 
1060 DEBUG_FUNCTION void
1061 debug_head (const tree_node *ptr)
1062 {
1063   if (ptr)
1064     debug_head (*ptr);
1065   else
1066     fprintf (stderr, "<nil>\n");
1067 }
1068 
1069 DEBUG_FUNCTION void
1070 debug_body (const tree_node &ref)
1071 {
1072   if (TREE_CODE (&ref) == FUNCTION_DECL)
1073     dump_function_to_file (const_cast <tree_node*> (&ref), stderr, 0);
1074   else
1075     debug (ref);
1076 }
1077 
1078 DEBUG_FUNCTION void
1079 debug_body (const tree_node *ptr)
1080 {
1081   if (ptr)
1082     debug_body (*ptr);
1083   else
1084     fprintf (stderr, "<nil>\n");
1085 }
1086 
1087 /* Print the vector of trees VEC on standard error, for debugging.
1088    Most nodes referred to by this one are printed recursively
1089    down to a depth of six.  */
1090 
1091 DEBUG_FUNCTION void
1092 debug_raw (vec<tree, va_gc> &ref)
1093 {
1094   tree elt;
1095   unsigned ix;
1096 
1097   /* Print the slot this node is in, and its code, and address.  */
1098   fprintf (stderr, "<VEC");
1099   dump_addr (stderr, " ", ref.address ());
1100 
1101   FOR_EACH_VEC_ELT (ref, ix, elt)
1102     {
1103       fprintf (stderr, "elt:%d ", ix);
1104       debug_raw (elt);
1105     }
1106 }
1107 
1108 DEBUG_FUNCTION void
1109 debug_raw (vec<tree, va_gc> *ptr)
1110 {
1111   if (ptr)
1112     debug_raw (*ptr);
1113   else
1114     fprintf (stderr, "<nil>\n");
1115 }
1116 
1117 static void
1118 debug_slim (tree t)
1119 {
1120   print_node_brief (stderr, "", t, 0);
1121 }
1122 
1123 DEFINE_DEBUG_VEC (tree)
1124 DEFINE_DEBUG_HASH_SET (tree)
1125