1/* Prints out tree in human readable form - GCC
2   Copyright (C) 1990-2015 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
21#include "config.h"
22#include "system.h"
23#include "coretypes.h"
24#include "tm.h"
25#include "hash-set.h"
26#include "machmode.h"
27#include "vec.h"
28#include "double-int.h"
29#include "input.h"
30#include "alias.h"
31#include "symtab.h"
32#include "wide-int.h"
33#include "inchash.h"
34#include "real.h"
35#include "fixed-value.h"
36#include "tree.h"
37#include "varasm.h"
38#include "print-rtl.h"
39#include "stor-layout.h"
40#include "ggc.h"
41#include "langhooks.h"
42#include "tree-iterator.h"
43#include "diagnostic.h"
44#include "gimple-pretty-print.h" /* FIXME */
45#include "hash-map.h"
46#include "is-a.h"
47#include "plugin-api.h"
48#include "hard-reg-set.h"
49#include "input.h"
50#include "function.h"
51#include "ipa-ref.h"
52#include "cgraph.h"
53#include "tree-cfg.h"
54#include "tree-dump.h"
55#include "dumpfile.h"
56#include "wide-int-print.h"
57
58/* Define the hash table of nodes already seen.
59   Such nodes are not repeated; brief cross-references are used.  */
60
61#define HASH_SIZE 37
62
63struct bucket
64{
65  tree node;
66  struct bucket *next;
67};
68
69static struct bucket **table;
70
71/* Print PREFIX and ADDR to FILE.  */
72void
73dump_addr (FILE *file, const char *prefix, const void *addr)
74{
75  if (flag_dump_noaddr || flag_dump_unnumbered)
76    fprintf (file, "%s#", prefix);
77  else
78    fprintf (file, "%s" HOST_PTR_PRINTF, prefix, addr);
79}
80
81/* Print a node in brief fashion, with just the code, address and name.  */
82
83void
84print_node_brief (FILE *file, const char *prefix, const_tree node, int indent)
85{
86  enum tree_code_class tclass;
87
88  if (node == 0)
89    return;
90
91  tclass = TREE_CODE_CLASS (TREE_CODE (node));
92
93  /* Always print the slot this node is in, and its code, address and
94     name if any.  */
95  if (indent > 0)
96    fprintf (file, " ");
97  fprintf (file, "%s <%s", prefix, get_tree_code_name (TREE_CODE (node)));
98  dump_addr (file, " ", node);
99
100  if (tclass == tcc_declaration)
101    {
102      if (DECL_NAME (node))
103	fprintf (file, " %s", IDENTIFIER_POINTER (DECL_NAME (node)));
104      else if (TREE_CODE (node) == LABEL_DECL
105	       && LABEL_DECL_UID (node) != -1)
106	{
107	  if (dump_flags & TDF_NOUID)
108	    fprintf (file, " L.xxxx");
109	  else
110	    fprintf (file, " L.%d", (int) LABEL_DECL_UID (node));
111	}
112      else
113	{
114	  if (dump_flags & TDF_NOUID)
115	    fprintf (file, " %c.xxxx",
116		     TREE_CODE (node) == CONST_DECL ? 'C' : 'D');
117	  else
118	    fprintf (file, " %c.%u",
119		     TREE_CODE (node) == CONST_DECL ? 'C' : 'D',
120		     DECL_UID (node));
121	}
122    }
123  else if (tclass == tcc_type)
124    {
125      if (TYPE_NAME (node))
126	{
127	  if (TREE_CODE (TYPE_NAME (node)) == IDENTIFIER_NODE)
128	    fprintf (file, " %s", IDENTIFIER_POINTER (TYPE_NAME (node)));
129	  else if (TREE_CODE (TYPE_NAME (node)) == TYPE_DECL
130		   && DECL_NAME (TYPE_NAME (node)))
131	    fprintf (file, " %s",
132		     IDENTIFIER_POINTER (DECL_NAME (TYPE_NAME (node))));
133	}
134      if (!ADDR_SPACE_GENERIC_P (TYPE_ADDR_SPACE (node)))
135	fprintf (file, " address-space-%d", TYPE_ADDR_SPACE (node));
136    }
137  if (TREE_CODE (node) == IDENTIFIER_NODE)
138    fprintf (file, " %s", IDENTIFIER_POINTER (node));
139
140  /* We might as well always print the value of an integer or real.  */
141  if (TREE_CODE (node) == INTEGER_CST)
142    {
143      if (TREE_OVERFLOW (node))
144	fprintf (file, " overflow");
145
146      fprintf (file, " ");
147      print_dec (node, file, TYPE_SIGN (TREE_TYPE (node)));
148    }
149  if (TREE_CODE (node) == REAL_CST)
150    {
151      REAL_VALUE_TYPE d;
152
153      if (TREE_OVERFLOW (node))
154	fprintf (file, " overflow");
155
156      d = TREE_REAL_CST (node);
157      if (REAL_VALUE_ISINF (d))
158	fprintf (file,  REAL_VALUE_NEGATIVE (d) ? " -Inf" : " Inf");
159      else if (REAL_VALUE_ISNAN (d))
160	fprintf (file, " Nan");
161      else
162	{
163	  char string[60];
164	  real_to_decimal (string, &d, sizeof (string), 0, 1);
165	  fprintf (file, " %s", string);
166	}
167    }
168  if (TREE_CODE (node) == FIXED_CST)
169    {
170      FIXED_VALUE_TYPE f;
171      char string[60];
172
173      if (TREE_OVERFLOW (node))
174	fprintf (file, " overflow");
175
176      f = TREE_FIXED_CST (node);
177      fixed_to_decimal (string, &f, sizeof (string));
178      fprintf (file, " %s", string);
179    }
180
181  fprintf (file, ">");
182}
183
184void
185indent_to (FILE *file, int column)
186{
187  int i;
188
189  /* Since this is the long way, indent to desired column.  */
190  if (column > 0)
191    fprintf (file, "\n");
192  for (i = 0; i < column; i++)
193    fprintf (file, " ");
194}
195
196/* Print the node NODE in full on file FILE, preceded by PREFIX,
197   starting in column INDENT.  */
198
199void
200print_node (FILE *file, const char *prefix, tree node, int indent)
201{
202  int hash;
203  struct bucket *b;
204  machine_mode mode;
205  enum tree_code_class tclass;
206  int len;
207  int i;
208  expanded_location xloc;
209  enum tree_code code;
210
211  if (node == 0)
212    return;
213
214  code = TREE_CODE (node);
215  tclass = TREE_CODE_CLASS (code);
216
217  /* Don't get too deep in nesting.  If the user wants to see deeper,
218     it is easy to use the address of a lowest-level node
219     as an argument in another call to debug_tree.  */
220
221  if (indent > 24)
222    {
223      print_node_brief (file, prefix, node, indent);
224      return;
225    }
226
227  if (indent > 8 && (tclass == tcc_type || tclass == tcc_declaration))
228    {
229      print_node_brief (file, prefix, node, indent);
230      return;
231    }
232
233  /* It is unsafe to look at any other fields of an ERROR_MARK node.  */
234  if (code == ERROR_MARK)
235    {
236      print_node_brief (file, prefix, node, indent);
237      return;
238    }
239
240  /* Allow this function to be called if the table is not there.  */
241  if (table)
242    {
243      hash = ((uintptr_t) node) % HASH_SIZE;
244
245      /* If node is in the table, just mention its address.  */
246      for (b = table[hash]; b; b = b->next)
247	if (b->node == node)
248	  {
249	    print_node_brief (file, prefix, node, indent);
250	    return;
251	  }
252
253      /* Add this node to the table.  */
254      b = XNEW (struct bucket);
255      b->node = node;
256      b->next = table[hash];
257      table[hash] = b;
258    }
259
260  /* Indent to the specified column, since this is the long form.  */
261  indent_to (file, indent);
262
263  /* Print the slot this node is in, and its code, and address.  */
264  fprintf (file, "%s <%s", prefix, get_tree_code_name (code));
265  dump_addr (file, " ", node);
266
267  /* Print the name, if any.  */
268  if (tclass == tcc_declaration)
269    {
270      if (DECL_NAME (node))
271	fprintf (file, " %s", IDENTIFIER_POINTER (DECL_NAME (node)));
272      else if (code == LABEL_DECL
273	       && LABEL_DECL_UID (node) != -1)
274	{
275	  if (dump_flags & TDF_NOUID)
276	    fprintf (file, " L.xxxx");
277	  else
278	    fprintf (file, " L.%d", (int) LABEL_DECL_UID (node));
279	}
280      else
281	{
282	  if (dump_flags & TDF_NOUID)
283	    fprintf (file, " %c.xxxx", code == CONST_DECL ? 'C' : 'D');
284	  else
285	    fprintf (file, " %c.%u", code == CONST_DECL ? 'C' : 'D',
286		     DECL_UID (node));
287	}
288    }
289  else if (tclass == tcc_type)
290    {
291      if (TYPE_NAME (node))
292	{
293	  if (TREE_CODE (TYPE_NAME (node)) == IDENTIFIER_NODE)
294	    fprintf (file, " %s", IDENTIFIER_POINTER (TYPE_NAME (node)));
295	  else if (TREE_CODE (TYPE_NAME (node)) == TYPE_DECL
296		   && DECL_NAME (TYPE_NAME (node)))
297	    fprintf (file, " %s",
298		     IDENTIFIER_POINTER (DECL_NAME (TYPE_NAME (node))));
299	}
300    }
301  if (code == IDENTIFIER_NODE)
302    fprintf (file, " %s", IDENTIFIER_POINTER (node));
303
304  if (code == INTEGER_CST)
305    {
306      if (indent <= 4)
307	print_node_brief (file, "type", TREE_TYPE (node), indent + 4);
308    }
309  else if (CODE_CONTAINS_STRUCT (code, TS_TYPED))
310    {
311      print_node (file, "type", TREE_TYPE (node), indent + 4);
312      if (TREE_TYPE (node))
313	indent_to (file, indent + 3);
314    }
315
316  if (!TYPE_P (node) && TREE_SIDE_EFFECTS (node))
317    fputs (" side-effects", file);
318
319  if (TYPE_P (node) ? TYPE_READONLY (node) : TREE_READONLY (node))
320    fputs (" readonly", file);
321  if (TYPE_P (node) && TYPE_ATOMIC (node))
322    fputs (" atomic", file);
323  if (!TYPE_P (node) && TREE_CONSTANT (node))
324    fputs (" constant", file);
325  else if (TYPE_P (node) && TYPE_SIZES_GIMPLIFIED (node))
326    fputs (" sizes-gimplified", file);
327
328  if (TYPE_P (node) && !ADDR_SPACE_GENERIC_P (TYPE_ADDR_SPACE (node)))
329    fprintf (file, " address-space-%d", TYPE_ADDR_SPACE (node));
330
331  if (TREE_ADDRESSABLE (node))
332    fputs (" addressable", file);
333  if (TREE_THIS_VOLATILE (node))
334    fputs (" volatile", file);
335  if (TREE_ASM_WRITTEN (node))
336    fputs (" asm_written", file);
337  if (TREE_USED (node))
338    fputs (" used", file);
339  if (TREE_NOTHROW (node))
340    fputs (TYPE_P (node) ? " align-ok" : " nothrow", file);
341  if (TREE_PUBLIC (node))
342    fputs (" public", file);
343  if (TREE_PRIVATE (node))
344    fputs (" private", file);
345  if (TREE_PROTECTED (node))
346    fputs (" protected", file);
347  if (TREE_STATIC (node))
348    fputs (" static", file);
349  if (TREE_DEPRECATED (node))
350    fputs (" deprecated", file);
351  if (TREE_VISITED (node))
352    fputs (" visited", file);
353
354  if (code != TREE_VEC && code != INTEGER_CST && code != SSA_NAME)
355    {
356      if (TREE_LANG_FLAG_0 (node))
357	fputs (" tree_0", file);
358      if (TREE_LANG_FLAG_1 (node))
359	fputs (" tree_1", file);
360      if (TREE_LANG_FLAG_2 (node))
361	fputs (" tree_2", file);
362      if (TREE_LANG_FLAG_3 (node))
363	fputs (" tree_3", file);
364      if (TREE_LANG_FLAG_4 (node))
365	fputs (" tree_4", file);
366      if (TREE_LANG_FLAG_5 (node))
367	fputs (" tree_5", file);
368      if (TREE_LANG_FLAG_6 (node))
369	fputs (" tree_6", file);
370    }
371
372  /* DECL_ nodes have additional attributes.  */
373
374  switch (TREE_CODE_CLASS (code))
375    {
376    case tcc_declaration:
377      if (CODE_CONTAINS_STRUCT (code, TS_DECL_COMMON))
378	{
379	  if (DECL_UNSIGNED (node))
380	    fputs (" unsigned", file);
381	  if (DECL_IGNORED_P (node))
382	    fputs (" ignored", file);
383	  if (DECL_ABSTRACT_P (node))
384	    fputs (" abstract", file);
385	  if (DECL_EXTERNAL (node))
386	    fputs (" external", file);
387	  if (DECL_NONLOCAL (node))
388	    fputs (" nonlocal", file);
389	}
390      if (CODE_CONTAINS_STRUCT (code, TS_DECL_WITH_VIS))
391	{
392	  if (DECL_WEAK (node))
393	    fputs (" weak", file);
394	  if (DECL_IN_SYSTEM_HEADER (node))
395	    fputs (" in_system_header", file);
396	}
397      if (CODE_CONTAINS_STRUCT (code, TS_DECL_WRTL)
398	  && code != LABEL_DECL
399	  && code != FUNCTION_DECL
400	  && DECL_REGISTER (node))
401	fputs (" regdecl", file);
402
403      if (code == TYPE_DECL && TYPE_DECL_SUPPRESS_DEBUG (node))
404	fputs (" suppress-debug", file);
405
406      if (code == FUNCTION_DECL
407	  && DECL_FUNCTION_SPECIFIC_TARGET (node))
408	fputs (" function-specific-target", file);
409      if (code == FUNCTION_DECL
410	  && DECL_FUNCTION_SPECIFIC_OPTIMIZATION (node))
411	fputs (" function-specific-opt", file);
412      if (code == FUNCTION_DECL && DECL_DECLARED_INLINE_P (node))
413	fputs (" autoinline", file);
414      if (code == FUNCTION_DECL && DECL_BUILT_IN (node))
415	fputs (" built-in", file);
416      if (code == FUNCTION_DECL && DECL_STATIC_CHAIN (node))
417	fputs (" static-chain", file);
418      if (TREE_CODE (node) == FUNCTION_DECL && decl_is_tm_clone (node))
419	fputs (" tm-clone", file);
420
421      if (code == FIELD_DECL && DECL_PACKED (node))
422	fputs (" packed", file);
423      if (code == FIELD_DECL && DECL_BIT_FIELD (node))
424	fputs (" bit-field", file);
425      if (code == FIELD_DECL && DECL_NONADDRESSABLE_P (node))
426	fputs (" nonaddressable", file);
427
428      if (code == LABEL_DECL && EH_LANDING_PAD_NR (node))
429	fprintf (file, " landing-pad:%d", EH_LANDING_PAD_NR (node));
430
431      if (code == VAR_DECL && DECL_IN_TEXT_SECTION (node))
432	fputs (" in-text-section", file);
433      if (code == VAR_DECL && DECL_IN_CONSTANT_POOL (node))
434	fputs (" in-constant-pool", file);
435      if (code == VAR_DECL && DECL_COMMON (node))
436	fputs (" common", file);
437      if (code == VAR_DECL && DECL_THREAD_LOCAL_P (node))
438	{
439	  fputs (" ", file);
440	  fputs (tls_model_names[DECL_TLS_MODEL (node)], file);
441	}
442
443      if (CODE_CONTAINS_STRUCT (code, TS_DECL_COMMON))
444	{
445	  if (DECL_VIRTUAL_P (node))
446	    fputs (" virtual", file);
447	  if (DECL_PRESERVE_P (node))
448	    fputs (" preserve", file);
449	  if (DECL_LANG_FLAG_0 (node))
450	    fputs (" decl_0", file);
451	  if (DECL_LANG_FLAG_1 (node))
452	    fputs (" decl_1", file);
453	  if (DECL_LANG_FLAG_2 (node))
454	    fputs (" decl_2", file);
455	  if (DECL_LANG_FLAG_3 (node))
456	    fputs (" decl_3", file);
457	  if (DECL_LANG_FLAG_4 (node))
458	    fputs (" decl_4", file);
459	  if (DECL_LANG_FLAG_5 (node))
460	    fputs (" decl_5", file);
461	  if (DECL_LANG_FLAG_6 (node))
462	    fputs (" decl_6", file);
463	  if (DECL_LANG_FLAG_7 (node))
464	    fputs (" decl_7", file);
465
466	  mode = DECL_MODE (node);
467	  fprintf (file, " %s", GET_MODE_NAME (mode));
468	}
469
470      if ((code == VAR_DECL || code == PARM_DECL || code == RESULT_DECL)
471	  && DECL_BY_REFERENCE (node))
472	fputs (" passed-by-reference", file);
473
474      if (CODE_CONTAINS_STRUCT (code, TS_DECL_WITH_VIS)  && DECL_DEFER_OUTPUT (node))
475	fputs (" defer-output", file);
476
477
478      xloc = expand_location (DECL_SOURCE_LOCATION (node));
479      fprintf (file, " file %s line %d col %d", xloc.file, xloc.line,
480	       xloc.column);
481
482      if (CODE_CONTAINS_STRUCT (code, TS_DECL_COMMON))
483	{
484	  print_node (file, "size", DECL_SIZE (node), indent + 4);
485	  print_node (file, "unit size", DECL_SIZE_UNIT (node), indent + 4);
486
487	  if (code != FUNCTION_DECL || DECL_BUILT_IN (node))
488	    indent_to (file, indent + 3);
489
490	  if (DECL_USER_ALIGN (node))
491	    fprintf (file, " user");
492
493	  fprintf (file, " align %d", DECL_ALIGN (node));
494	  if (code == FIELD_DECL)
495	    fprintf (file, " offset_align " HOST_WIDE_INT_PRINT_UNSIGNED,
496		     DECL_OFFSET_ALIGN (node));
497
498	  if (code == FUNCTION_DECL && DECL_BUILT_IN (node))
499	    {
500	      if (DECL_BUILT_IN_CLASS (node) == BUILT_IN_MD)
501		fprintf (file, " built-in BUILT_IN_MD %d", DECL_FUNCTION_CODE (node));
502	      else
503		fprintf (file, " built-in %s:%s",
504			 built_in_class_names[(int) DECL_BUILT_IN_CLASS (node)],
505			 built_in_names[(int) DECL_FUNCTION_CODE (node)]);
506	    }
507	}
508      if (code == FIELD_DECL)
509	{
510	  print_node (file, "offset", DECL_FIELD_OFFSET (node), indent + 4);
511	  print_node (file, "bit offset", DECL_FIELD_BIT_OFFSET (node),
512		      indent + 4);
513	  if (DECL_BIT_FIELD_TYPE (node))
514	    print_node (file, "bit_field_type", DECL_BIT_FIELD_TYPE (node),
515			indent + 4);
516	}
517
518      print_node_brief (file, "context", DECL_CONTEXT (node), indent + 4);
519
520      if (CODE_CONTAINS_STRUCT (code, TS_DECL_COMMON))
521	{
522	  print_node_brief (file, "attributes",
523			    DECL_ATTRIBUTES (node), indent + 4);
524	  if (code != PARM_DECL)
525	    print_node_brief (file, "initial", DECL_INITIAL (node),
526			      indent + 4);
527	}
528      if (CODE_CONTAINS_STRUCT (code, TS_DECL_WRTL))
529	{
530	  print_node_brief (file, "abstract_origin",
531			    DECL_ABSTRACT_ORIGIN (node), indent + 4);
532	}
533      if (CODE_CONTAINS_STRUCT (code, TS_DECL_NON_COMMON))
534	{
535	  print_node (file, "result", DECL_RESULT_FLD (node), indent + 4);
536	}
537
538      lang_hooks.print_decl (file, node, indent);
539
540      if (DECL_RTL_SET_P (node))
541	{
542	  indent_to (file, indent + 4);
543	  print_rtl (file, DECL_RTL (node));
544	}
545
546      if (code == PARM_DECL)
547	{
548	  print_node (file, "arg-type", DECL_ARG_TYPE (node), indent + 4);
549
550	  if (DECL_INCOMING_RTL (node) != 0)
551	    {
552	      indent_to (file, indent + 4);
553	      fprintf (file, "incoming-rtl ");
554	      print_rtl (file, DECL_INCOMING_RTL (node));
555	    }
556	}
557      else if (code == FUNCTION_DECL
558	       && DECL_STRUCT_FUNCTION (node) != 0)
559	{
560	  print_node (file, "arguments", DECL_ARGUMENTS (node), indent + 4);
561	  indent_to (file, indent + 4);
562	  dump_addr (file, "struct-function ", DECL_STRUCT_FUNCTION (node));
563	}
564
565      if ((code == VAR_DECL || code == PARM_DECL)
566	  && DECL_HAS_VALUE_EXPR_P (node))
567	print_node (file, "value-expr", DECL_VALUE_EXPR (node), indent + 4);
568
569      /* Print the decl chain only if decl is at second level.  */
570      if (indent == 4)
571	print_node (file, "chain", TREE_CHAIN (node), indent + 4);
572      else
573	print_node_brief (file, "chain", TREE_CHAIN (node), indent + 4);
574      break;
575
576    case tcc_type:
577      if (TYPE_UNSIGNED (node))
578	fputs (" unsigned", file);
579
580      if (TYPE_NO_FORCE_BLK (node))
581	fputs (" no-force-blk", file);
582
583      if (TYPE_STRING_FLAG (node))
584	fputs (" string-flag", file);
585
586      if (TYPE_NEEDS_CONSTRUCTING (node))
587	fputs (" needs-constructing", file);
588
589      /* The transparent-union flag is used for different things in
590	 different nodes.  */
591      if ((code == UNION_TYPE || code == RECORD_TYPE)
592	  && TYPE_TRANSPARENT_AGGR (node))
593	fputs (" transparent-aggr", file);
594      else if (code == ARRAY_TYPE
595	       && TYPE_NONALIASED_COMPONENT (node))
596	fputs (" nonaliased-component", file);
597
598      if (TYPE_PACKED (node))
599	fputs (" packed", file);
600
601      if (TYPE_RESTRICT (node))
602	fputs (" restrict", file);
603
604      if (TYPE_LANG_FLAG_0 (node))
605	fputs (" type_0", file);
606      if (TYPE_LANG_FLAG_1 (node))
607	fputs (" type_1", file);
608      if (TYPE_LANG_FLAG_2 (node))
609	fputs (" type_2", file);
610      if (TYPE_LANG_FLAG_3 (node))
611	fputs (" type_3", file);
612      if (TYPE_LANG_FLAG_4 (node))
613	fputs (" type_4", file);
614      if (TYPE_LANG_FLAG_5 (node))
615	fputs (" type_5", file);
616      if (TYPE_LANG_FLAG_6 (node))
617	fputs (" type_6", file);
618
619      mode = TYPE_MODE (node);
620      fprintf (file, " %s", GET_MODE_NAME (mode));
621
622      print_node (file, "size", TYPE_SIZE (node), indent + 4);
623      print_node (file, "unit size", TYPE_SIZE_UNIT (node), indent + 4);
624      indent_to (file, indent + 3);
625
626      if (TYPE_USER_ALIGN (node))
627	fprintf (file, " user");
628
629      fprintf (file, " align %d symtab %d alias set " HOST_WIDE_INT_PRINT_DEC,
630	       TYPE_ALIGN (node), TYPE_SYMTAB_ADDRESS (node),
631	       (HOST_WIDE_INT) TYPE_ALIAS_SET (node));
632
633      if (TYPE_STRUCTURAL_EQUALITY_P (node))
634	fprintf (file, " structural equality");
635      else
636	dump_addr (file, " canonical type ", TYPE_CANONICAL (node));
637
638      print_node (file, "attributes", TYPE_ATTRIBUTES (node), indent + 4);
639
640      if (INTEGRAL_TYPE_P (node) || code == REAL_TYPE
641	  || code == FIXED_POINT_TYPE)
642	{
643	  fprintf (file, " precision %d", TYPE_PRECISION (node));
644	  print_node_brief (file, "min", TYPE_MIN_VALUE (node), indent + 4);
645	  print_node_brief (file, "max", TYPE_MAX_VALUE (node), indent + 4);
646	}
647
648      if (code == ENUMERAL_TYPE)
649	print_node (file, "values", TYPE_VALUES (node), indent + 4);
650      else if (code == ARRAY_TYPE)
651	print_node (file, "domain", TYPE_DOMAIN (node), indent + 4);
652      else if (code == VECTOR_TYPE)
653	fprintf (file, " nunits %d", (int) TYPE_VECTOR_SUBPARTS (node));
654      else if (code == RECORD_TYPE
655	       || code == UNION_TYPE
656	       || code == QUAL_UNION_TYPE)
657	print_node (file, "fields", TYPE_FIELDS (node), indent + 4);
658      else if (code == FUNCTION_TYPE
659	       || code == METHOD_TYPE)
660	{
661	  if (TYPE_METHOD_BASETYPE (node))
662	    print_node_brief (file, "method basetype",
663			      TYPE_METHOD_BASETYPE (node), indent + 4);
664	  print_node (file, "arg-types", TYPE_ARG_TYPES (node), indent + 4);
665	}
666      else if (code == OFFSET_TYPE)
667	print_node_brief (file, "basetype", TYPE_OFFSET_BASETYPE (node),
668			  indent + 4);
669
670      if (TYPE_CONTEXT (node))
671	print_node_brief (file, "context", TYPE_CONTEXT (node), indent + 4);
672
673      lang_hooks.print_type (file, node, indent);
674
675      if (TYPE_POINTER_TO (node) || TREE_CHAIN (node))
676	indent_to (file, indent + 3);
677
678      print_node_brief (file, "pointer_to_this", TYPE_POINTER_TO (node),
679			indent + 4);
680      print_node_brief (file, "reference_to_this", TYPE_REFERENCE_TO (node),
681			indent + 4);
682      print_node_brief (file, "chain", TREE_CHAIN (node), indent + 4);
683      break;
684
685    case tcc_expression:
686    case tcc_comparison:
687    case tcc_unary:
688    case tcc_binary:
689    case tcc_reference:
690    case tcc_statement:
691    case tcc_vl_exp:
692      if (code == BIND_EXPR)
693	{
694	  print_node (file, "vars", TREE_OPERAND (node, 0), indent + 4);
695	  print_node (file, "body", TREE_OPERAND (node, 1), indent + 4);
696	  print_node (file, "block", TREE_OPERAND (node, 2), indent + 4);
697	  break;
698	}
699      if (code == CALL_EXPR)
700	{
701	  call_expr_arg_iterator iter;
702	  tree arg;
703	  print_node (file, "fn", CALL_EXPR_FN (node), indent + 4);
704	  print_node (file, "static_chain", CALL_EXPR_STATIC_CHAIN (node),
705		      indent + 4);
706	  i = 0;
707	  FOR_EACH_CALL_EXPR_ARG (arg, iter, node)
708	    {
709	      char temp[10];
710	      sprintf (temp, "arg %d", i);
711	      print_node (file, temp, arg, indent + 4);
712	      i++;
713	    }
714	}
715      else
716	{
717	  len = TREE_OPERAND_LENGTH (node);
718
719	  for (i = 0; i < len; i++)
720	    {
721	      char temp[10];
722
723	      sprintf (temp, "arg %d", i);
724	      print_node (file, temp, TREE_OPERAND (node, i), indent + 4);
725	    }
726	}
727      if (CODE_CONTAINS_STRUCT (code, TS_COMMON))
728	print_node (file, "chain", TREE_CHAIN (node), indent + 4);
729      break;
730
731    case tcc_constant:
732    case tcc_exceptional:
733      switch (code)
734	{
735	case INTEGER_CST:
736	  if (TREE_OVERFLOW (node))
737	    fprintf (file, " overflow");
738
739	  fprintf (file, " ");
740	  print_dec (node, file, TYPE_SIGN (TREE_TYPE (node)));
741	  break;
742
743	case REAL_CST:
744	  {
745	    REAL_VALUE_TYPE d;
746
747	    if (TREE_OVERFLOW (node))
748	      fprintf (file, " overflow");
749
750	    d = TREE_REAL_CST (node);
751	    if (REAL_VALUE_ISINF (d))
752	      fprintf (file,  REAL_VALUE_NEGATIVE (d) ? " -Inf" : " Inf");
753	    else if (REAL_VALUE_ISNAN (d))
754	      fprintf (file, " Nan");
755	    else
756	      {
757		char string[64];
758		real_to_decimal (string, &d, sizeof (string), 0, 1);
759		fprintf (file, " %s", string);
760	      }
761	  }
762	  break;
763
764	case FIXED_CST:
765	  {
766	    FIXED_VALUE_TYPE f;
767	    char string[64];
768
769	    if (TREE_OVERFLOW (node))
770	      fprintf (file, " overflow");
771
772	    f = TREE_FIXED_CST (node);
773	    fixed_to_decimal (string, &f, sizeof (string));
774	    fprintf (file, " %s", string);
775	  }
776	  break;
777
778	case VECTOR_CST:
779	  {
780	    char buf[10];
781	    unsigned i;
782
783	    for (i = 0; i < VECTOR_CST_NELTS (node); ++i)
784	      {
785		sprintf (buf, "elt%u: ", i);
786		print_node (file, buf, VECTOR_CST_ELT (node, i), indent + 4);
787	      }
788	  }
789	  break;
790
791	case COMPLEX_CST:
792	  print_node (file, "real", TREE_REALPART (node), indent + 4);
793	  print_node (file, "imag", TREE_IMAGPART (node), indent + 4);
794	  break;
795
796	case STRING_CST:
797	  {
798	    const char *p = TREE_STRING_POINTER (node);
799	    int i = TREE_STRING_LENGTH (node);
800	    fputs (" \"", file);
801	    while (--i >= 0)
802	      {
803		char ch = *p++;
804		if (ch >= ' ' && ch < 127)
805		  putc (ch, file);
806		else
807		  fprintf (file, "\\%03o", ch & 0xFF);
808	      }
809	    fputc ('\"', file);
810	  }
811	  break;
812
813	case IDENTIFIER_NODE:
814	  lang_hooks.print_identifier (file, node, indent);
815	  break;
816
817	case TREE_LIST:
818	  print_node (file, "purpose", TREE_PURPOSE (node), indent + 4);
819	  print_node (file, "value", TREE_VALUE (node), indent + 4);
820	  print_node (file, "chain", TREE_CHAIN (node), indent + 4);
821	  break;
822
823	case TREE_VEC:
824	  len = TREE_VEC_LENGTH (node);
825	  for (i = 0; i < len; i++)
826	    if (TREE_VEC_ELT (node, i))
827	      {
828		char temp[10];
829		sprintf (temp, "elt %d", i);
830		print_node (file, temp, TREE_VEC_ELT (node, i), indent + 4);
831	      }
832	  break;
833
834	case CONSTRUCTOR:
835	  {
836	    unsigned HOST_WIDE_INT cnt;
837	    tree index, value;
838	    len = vec_safe_length (CONSTRUCTOR_ELTS (node));
839	    fprintf (file, " lngt %d", len);
840	    FOR_EACH_CONSTRUCTOR_ELT (CONSTRUCTOR_ELTS (node),
841				      cnt, index, value)
842	      {
843		print_node (file, "idx", index, indent + 4);
844		print_node (file, "val", value, indent + 4);
845	      }
846	  }
847	  break;
848
849    	case STATEMENT_LIST:
850	  dump_addr (file, " head ", node->stmt_list.head);
851	  dump_addr (file, " tail ", node->stmt_list.tail);
852	  fprintf (file, " stmts");
853	  {
854	    tree_stmt_iterator i;
855	    for (i = tsi_start (node); !tsi_end_p (i); tsi_next (&i))
856	      {
857		/* Not printing the addresses of the (not-a-tree)
858		   'struct tree_stmt_list_node's.  */
859		dump_addr (file, " ", tsi_stmt (i));
860	      }
861	    fprintf (file, "\n");
862	    for (i = tsi_start (node); !tsi_end_p (i); tsi_next (&i))
863	      {
864		/* Not printing the addresses of the (not-a-tree)
865		   'struct tree_stmt_list_node's.  */
866		print_node (file, "stmt", tsi_stmt (i), indent + 4);
867	      }
868	  }
869	  break;
870
871	case BLOCK:
872	  print_node (file, "vars", BLOCK_VARS (node), indent + 4);
873	  print_node (file, "supercontext", BLOCK_SUPERCONTEXT (node),
874		      indent + 4);
875	  print_node (file, "subblocks", BLOCK_SUBBLOCKS (node), indent + 4);
876	  print_node (file, "chain", BLOCK_CHAIN (node), indent + 4);
877	  print_node (file, "abstract_origin",
878		      BLOCK_ABSTRACT_ORIGIN (node), indent + 4);
879	  break;
880
881	case SSA_NAME:
882	  print_node_brief (file, "var", SSA_NAME_VAR (node), indent + 4);
883	  fprintf (file, "def_stmt ");
884	  print_gimple_stmt (file, SSA_NAME_DEF_STMT (node), indent + 4, 0);
885
886	  indent_to (file, indent + 4);
887	  fprintf (file, "version %u", SSA_NAME_VERSION (node));
888	  if (SSA_NAME_OCCURS_IN_ABNORMAL_PHI (node))
889	    fprintf (file, " in-abnormal-phi");
890	  if (SSA_NAME_IN_FREE_LIST (node))
891	    fprintf (file, " in-free-list");
892
893	  if (SSA_NAME_PTR_INFO (node))
894	    {
895	      indent_to (file, indent + 3);
896	      if (SSA_NAME_PTR_INFO (node))
897		dump_addr (file, " ptr-info ", SSA_NAME_PTR_INFO (node));
898	    }
899	  break;
900
901	case OMP_CLAUSE:
902	    {
903	      int i;
904	      fprintf (file, " %s",
905		       omp_clause_code_name[OMP_CLAUSE_CODE (node)]);
906	      for (i = 0; i < omp_clause_num_ops[OMP_CLAUSE_CODE (node)]; i++)
907		{
908		  indent_to (file, indent + 4);
909		  fprintf (file, "op %d:", i);
910		  print_node_brief (file, "", OMP_CLAUSE_OPERAND (node, i), 0);
911		}
912	    }
913	  break;
914
915	case OPTIMIZATION_NODE:
916	  cl_optimization_print (file, indent + 4, TREE_OPTIMIZATION (node));
917	  break;
918
919	case TARGET_OPTION_NODE:
920	  cl_target_option_print (file, indent + 4, TREE_TARGET_OPTION (node));
921	  break;
922	case IMPORTED_DECL:
923	  fprintf (file, " imported declaration");
924	  print_node_brief (file, "associated declaration",
925			    IMPORTED_DECL_ASSOCIATED_DECL (node),
926			    indent + 4);
927	  break;
928
929	default:
930	  if (EXCEPTIONAL_CLASS_P (node))
931	    lang_hooks.print_xnode (file, node, indent);
932	  break;
933	}
934
935      break;
936    }
937
938  if (EXPR_HAS_LOCATION (node))
939    {
940      expanded_location xloc = expand_location (EXPR_LOCATION (node));
941      indent_to (file, indent+4);
942      fprintf (file, "%s:%d:%d", xloc.file, xloc.line, xloc.column);
943    }
944
945  fprintf (file, ">");
946}
947
948
949/* Print the node NODE on standard error, for debugging.
950   Most nodes referred to by this one are printed recursively
951   down to a depth of six.  */
952
953DEBUG_FUNCTION void
954debug_tree (tree node)
955{
956  table = XCNEWVEC (struct bucket *, HASH_SIZE);
957  print_node (stderr, "", node, 0);
958  free (table);
959  table = 0;
960  putc ('\n', stderr);
961}
962
963DEBUG_FUNCTION void
964debug_raw (const tree_node &ref)
965{
966  debug_tree (const_cast <tree> (&ref));
967}
968
969DEBUG_FUNCTION void
970debug_raw (const tree_node *ptr)
971{
972  if (ptr)
973    debug_raw (*ptr);
974  else
975    fprintf (stderr, "<nil>\n");
976}
977
978static void
979dump_tree_via_hooks (const tree_node *ptr, int options)
980{
981  if (DECL_P (ptr))
982    lang_hooks.print_decl (stderr, const_cast <tree_node*> (ptr), 0);
983  else if (TYPE_P (ptr))
984    lang_hooks.print_type (stderr, const_cast <tree_node*> (ptr), 0);
985  else if (TREE_CODE (ptr) == IDENTIFIER_NODE)
986    lang_hooks.print_identifier (stderr, const_cast <tree_node*> (ptr), 0);
987  else
988    print_generic_expr (stderr, const_cast <tree_node*> (ptr), options);
989  fprintf (stderr, "\n");
990}
991
992DEBUG_FUNCTION void
993debug (const tree_node &ref)
994{
995  dump_tree_via_hooks (&ref, 0);
996}
997
998DEBUG_FUNCTION void
999debug (const tree_node *ptr)
1000{
1001  if (ptr)
1002    debug (*ptr);
1003  else
1004    fprintf (stderr, "<nil>\n");
1005}
1006
1007DEBUG_FUNCTION void
1008debug_verbose (const tree_node &ref)
1009{
1010  dump_tree_via_hooks (&ref, TDF_VERBOSE);
1011}
1012
1013DEBUG_FUNCTION void
1014debug_verbose (const tree_node *ptr)
1015{
1016  if (ptr)
1017    debug_verbose (*ptr);
1018  else
1019    fprintf (stderr, "<nil>\n");
1020}
1021
1022DEBUG_FUNCTION void
1023debug_head (const tree_node &ref)
1024{
1025  debug (ref);
1026}
1027
1028DEBUG_FUNCTION void
1029debug_head (const tree_node *ptr)
1030{
1031  if (ptr)
1032    debug_head (*ptr);
1033  else
1034    fprintf (stderr, "<nil>\n");
1035}
1036
1037DEBUG_FUNCTION void
1038debug_body (const tree_node &ref)
1039{
1040  if (TREE_CODE (&ref) == FUNCTION_DECL)
1041    dump_function_to_file (const_cast <tree_node*> (&ref), stderr, 0);
1042  else
1043    debug (ref);
1044}
1045
1046DEBUG_FUNCTION void
1047debug_body (const tree_node *ptr)
1048{
1049  if (ptr)
1050    debug_body (*ptr);
1051  else
1052    fprintf (stderr, "<nil>\n");
1053}
1054
1055/* Print the vector of trees VEC on standard error, for debugging.
1056   Most nodes referred to by this one are printed recursively
1057   down to a depth of six.  */
1058
1059DEBUG_FUNCTION void
1060debug_raw (vec<tree, va_gc> &ref)
1061{
1062  tree elt;
1063  unsigned ix;
1064
1065  /* Print the slot this node is in, and its code, and address.  */
1066  fprintf (stderr, "<VEC");
1067  dump_addr (stderr, " ", ref.address ());
1068
1069  FOR_EACH_VEC_ELT (ref, ix, elt)
1070    {
1071      fprintf (stderr, "elt %d ", ix);
1072      debug_raw (elt);
1073    }
1074}
1075
1076DEBUG_FUNCTION void
1077debug (vec<tree, va_gc> &ref)
1078{
1079  tree elt;
1080  unsigned ix;
1081
1082  /* Print the slot this node is in, and its code, and address.  */
1083  fprintf (stderr, "<VEC");
1084  dump_addr (stderr, " ", ref.address ());
1085
1086  FOR_EACH_VEC_ELT (ref, ix, elt)
1087    {
1088      fprintf (stderr, "elt %d ", ix);
1089      debug (elt);
1090    }
1091}
1092
1093DEBUG_FUNCTION void
1094debug (vec<tree, va_gc> *ptr)
1095{
1096  if (ptr)
1097    debug (*ptr);
1098  else
1099    fprintf (stderr, "<nil>\n");
1100}
1101
1102DEBUG_FUNCTION void
1103debug_raw (vec<tree, va_gc> *ptr)
1104{
1105  if (ptr)
1106    debug_raw (*ptr);
1107  else
1108    fprintf (stderr, "<nil>\n");
1109}
1110
1111DEBUG_FUNCTION void
1112debug_vec_tree (vec<tree, va_gc> *vec)
1113{
1114  debug_raw (vec);
1115}
1116