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1 684 jeremybenn
/* Definitions for describing one tree-ssa optimization pass.
2
   Copyright (C) 2004, 2005, 2006, 2007, 2008, 2009, 2010, 2011
3
   Free Software Foundation, Inc.
4
   Contributed by Richard Henderson <rth@redhat.com>
5
 
6
This file is part of GCC.
7
 
8
GCC is free software; you can redistribute it and/or modify
9
it under the terms of the GNU General Public License as published by
10
the Free Software Foundation; either version 3, or (at your option)
11
any later version.
12
 
13
GCC is distributed in the hope that it will be useful,
14
but WITHOUT ANY WARRANTY; without even the implied warranty of
15
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
16
GNU General Public License for more details.
17
 
18
You should have received a copy of the GNU General Public License
19
along with GCC; see the file COPYING3.  If not see
20
<http://www.gnu.org/licenses/>.  */
21
 
22
 
23
#ifndef GCC_TREE_PASS_H
24
#define GCC_TREE_PASS_H 1
25
 
26
#include "timevar.h"
27
 
28
/* Different tree dump places.  When you add new tree dump places,
29
   extend the DUMP_FILES array in tree-dump.c.  */
30
enum tree_dump_index
31
{
32
  TDI_none,                     /* No dump */
33
  TDI_cgraph,                   /* dump function call graph.  */
34
  TDI_tu,                       /* dump the whole translation unit.  */
35
  TDI_class,                    /* dump class hierarchy.  */
36
  TDI_original,                 /* dump each function before optimizing it */
37
  TDI_generic,                  /* dump each function after genericizing it */
38
  TDI_nested,                   /* dump each function after unnesting it */
39
  TDI_vcg,                      /* create a VCG graph file for each
40
                                   function's flowgraph.  */
41
  TDI_ada,                      /* dump declarations in Ada syntax.  */
42
  TDI_tree_all,                 /* enable all the GENERIC/GIMPLE dumps.  */
43
  TDI_rtl_all,                  /* enable all the RTL dumps.  */
44
  TDI_ipa_all,                  /* enable all the IPA dumps.  */
45
 
46
  TDI_end
47
};
48
 
49
/* Bit masks to control dumping. Not all values are applicable to
50
   all dumps. Add new ones at the end. When you define new
51
   values, extend the DUMP_OPTIONS array in tree-dump.c */
52
#define TDF_ADDRESS     (1 << 0)        /* dump node addresses */
53
#define TDF_SLIM        (1 << 1)        /* don't go wild following links */
54
#define TDF_RAW         (1 << 2)        /* don't unparse the function */
55
#define TDF_DETAILS     (1 << 3)        /* show more detailed info about
56
                                           each pass */
57
#define TDF_STATS       (1 << 4)        /* dump various statistics about
58
                                           each pass */
59
#define TDF_BLOCKS      (1 << 5)        /* display basic block boundaries */
60
#define TDF_VOPS        (1 << 6)        /* display virtual operands */
61
#define TDF_LINENO      (1 << 7)        /* display statement line numbers */
62
#define TDF_UID         (1 << 8)        /* display decl UIDs */
63
 
64
#define TDF_TREE        (1 << 9)        /* is a tree dump */
65
#define TDF_RTL         (1 << 10)       /* is a RTL dump */
66
#define TDF_IPA         (1 << 11)       /* is an IPA dump */
67
#define TDF_STMTADDR    (1 << 12)       /* Address of stmt.  */
68
 
69
#define TDF_GRAPH       (1 << 13)       /* a graph dump is being emitted */
70
#define TDF_MEMSYMS     (1 << 14)       /* display memory symbols in expr.
71
                                           Implies TDF_VOPS.  */
72
 
73
#define TDF_DIAGNOSTIC  (1 << 15)       /* A dump to be put in a diagnostic
74
                                           message.  */
75
#define TDF_VERBOSE     (1 << 16)       /* A dump that uses the full tree
76
                                           dumper to print stmts.  */
77
#define TDF_RHS_ONLY    (1 << 17)       /* a flag to only print the RHS of
78
                                           a gimple stmt.  */
79
#define TDF_ASMNAME     (1 << 18)       /* display asm names of decls  */
80
#define TDF_EH          (1 << 19)       /* display EH region number
81
                                           holding this gimple statement.  */
82
#define TDF_NOUID       (1 << 20)       /* omit UIDs from dumps.  */
83
#define TDF_ALIAS       (1 << 21)       /* display alias information  */
84
#define TDF_ENUMERATE_LOCALS (1 << 22)  /* Enumerate locals by uid.  */
85
#define TDF_CSELIB      (1 << 23)       /* Dump cselib details.  */
86
#define TDF_SCEV        (1 << 24)       /* Dump SCEV details.  */
87
 
88
 
89
/* In tree-dump.c */
90
 
91
extern char *get_dump_file_name (int);
92
extern int dump_enabled_p (int);
93
extern int dump_initialized_p (int);
94
extern FILE *dump_begin (int, int *);
95
extern void dump_end (int, FILE *);
96
extern void dump_node (const_tree, int, FILE *);
97
extern int dump_switch_p (const char *);
98
extern const char *dump_flag_name (int);
99
 
100
/* Global variables used to communicate with passes.  */
101
extern FILE *dump_file;
102
extern int dump_flags;
103
extern const char *dump_file_name;
104
 
105
/* Return the dump_file_info for the given phase.  */
106
extern struct dump_file_info *get_dump_file_info (int);
107
 
108
/* Optimization pass type.  */
109
enum opt_pass_type
110
{
111
  GIMPLE_PASS,
112
  RTL_PASS,
113
  SIMPLE_IPA_PASS,
114
  IPA_PASS
115
};
116
 
117
/* Describe one pass; this is the common part shared across different pass
118
   types.  */
119
struct opt_pass
120
{
121
  /* Optimization pass type.  */
122
  enum opt_pass_type type;
123
 
124
  /* Terse name of the pass used as a fragment of the dump file
125
     name.  If the name starts with a star, no dump happens. */
126
  const char *name;
127
 
128
  /* If non-null, this pass and all sub-passes are executed only if
129
     the function returns true.  */
130
  bool (*gate) (void);
131
 
132
  /* This is the code to run.  If null, then there should be sub-passes
133
     otherwise this pass does nothing.  The return value contains
134
     TODOs to execute in addition to those in TODO_flags_finish.   */
135
  unsigned int (*execute) (void);
136
 
137
  /* A list of sub-passes to run, dependent on gate predicate.  */
138
  struct opt_pass *sub;
139
 
140
  /* Next in the list of passes to run, independent of gate predicate.  */
141
  struct opt_pass *next;
142
 
143
  /* Static pass number, used as a fragment of the dump file name.  */
144
  int static_pass_number;
145
 
146
  /* The timevar id associated with this pass.  */
147
  /* ??? Ideally would be dynamically assigned.  */
148
  timevar_id_t tv_id;
149
 
150
  /* Sets of properties input and output from this pass.  */
151
  unsigned int properties_required;
152
  unsigned int properties_provided;
153
  unsigned int properties_destroyed;
154
 
155
  /* Flags indicating common sets things to do before and after.  */
156
  unsigned int todo_flags_start;
157
  unsigned int todo_flags_finish;
158
};
159
 
160
/* Description of GIMPLE pass.  */
161
struct gimple_opt_pass
162
{
163
  struct opt_pass pass;
164
};
165
 
166
/* Description of RTL pass.  */
167
struct rtl_opt_pass
168
{
169
  struct opt_pass pass;
170
};
171
 
172
struct varpool_node;
173
struct cgraph_node;
174
struct cgraph_node_set_def;
175
struct varpool_node_set_def;
176
 
177
/* Description of IPA pass with generate summary, write, execute, read and
178
   transform stages.  */
179
struct ipa_opt_pass_d
180
{
181
  struct opt_pass pass;
182
 
183
  /* IPA passes can analyze function body and variable initializers
184
      using this hook and produce summary.  */
185
  void (*generate_summary) (void);
186
 
187
  /* This hook is used to serialize IPA summaries on disk.  */
188
  void (*write_summary) (struct cgraph_node_set_def *,
189
                         struct varpool_node_set_def *);
190
 
191
  /* This hook is used to deserialize IPA summaries from disk.  */
192
  void (*read_summary) (void);
193
 
194
  /* This hook is used to serialize IPA optimization summaries on disk.  */
195
  void (*write_optimization_summary) (struct cgraph_node_set_def *,
196
                                      struct varpool_node_set_def *);
197
 
198
  /* This hook is used to deserialize IPA summaries from disk.  */
199
  void (*read_optimization_summary) (void);
200
 
201
  /* Hook to convert gimple stmt uids into true gimple statements.  The second
202
     parameter is an array of statements indexed by their uid. */
203
  void (*stmt_fixup) (struct cgraph_node *, gimple *);
204
 
205
  /* Results of interprocedural propagation of an IPA pass is applied to
206
     function body via this hook.  */
207
  unsigned int function_transform_todo_flags_start;
208
  unsigned int (*function_transform) (struct cgraph_node *);
209
  void (*variable_transform) (struct varpool_node *);
210
};
211
 
212
/* Description of simple IPA pass.  Simple IPA passes have just one execute
213
   hook.  */
214
struct simple_ipa_opt_pass
215
{
216
  struct opt_pass pass;
217
};
218
 
219
/* Define a tree dump switch.  */
220
struct dump_file_info
221
{
222
  const char *suffix;           /* suffix to give output file.  */
223
  const char *swtch;            /* command line switch */
224
  const char *glob;             /* command line glob  */
225
  int flags;                    /* user flags */
226
  int state;                    /* state of play */
227
  int num;                      /* dump file number */
228
};
229
 
230
/* Pass properties.  */
231
#define PROP_gimple_any         (1 << 0)        /* entire gimple grammar */
232
#define PROP_gimple_lcf         (1 << 1)        /* lowered control flow */
233
#define PROP_gimple_leh         (1 << 2)        /* lowered eh */
234
#define PROP_cfg                (1 << 3)
235
#define PROP_referenced_vars    (1 << 4)
236
#define PROP_ssa                (1 << 5)
237
#define PROP_no_crit_edges      (1 << 6)
238
#define PROP_rtl                (1 << 7)
239
#define PROP_gimple_lomp        (1 << 8)        /* lowered OpenMP directives */
240
#define PROP_cfglayout          (1 << 9)        /* cfglayout mode on RTL */
241
#define PROP_gimple_lcx         (1 << 10)       /* lowered complex */
242
 
243
#define PROP_trees \
244
  (PROP_gimple_any | PROP_gimple_lcf | PROP_gimple_leh | PROP_gimple_lomp)
245
 
246
/* To-do flags.  */
247
#define TODO_dump_func                  (1 << 0)
248
#define TODO_ggc_collect                (1 << 1)
249
#define TODO_verify_ssa                 (1 << 2)
250
#define TODO_verify_flow                (1 << 3)
251
#define TODO_verify_stmts               (1 << 4)
252
#define TODO_cleanup_cfg                (1 << 5)
253
#define TODO_dump_cgraph                (1 << 7)
254
#define TODO_remove_functions           (1 << 8)
255
#define TODO_rebuild_frequencies        (1 << 9)
256
#define TODO_verify_rtl_sharing         (1 << 10)
257
 
258
/* To-do flags for calls to update_ssa.  */
259
 
260
/* Update the SSA form inserting PHI nodes for newly exposed symbols
261
   and virtual names marked for updating.  When updating real names,
262
   only insert PHI nodes for a real name O_j in blocks reached by all
263
   the new and old definitions for O_j.  If the iterated dominance
264
   frontier for O_j is not pruned, we may end up inserting PHI nodes
265
   in blocks that have one or more edges with no incoming definition
266
   for O_j.  This would lead to uninitialized warnings for O_j's
267
   symbol.  */
268
#define TODO_update_ssa                 (1 << 11)
269
 
270
/* Update the SSA form without inserting any new PHI nodes at all.
271
   This is used by passes that have either inserted all the PHI nodes
272
   themselves or passes that need only to patch use-def and def-def
273
   chains for virtuals (e.g., DCE).  */
274
#define TODO_update_ssa_no_phi          (1 << 12)
275
 
276
/* Insert PHI nodes everywhere they are needed.  No pruning of the
277
   IDF is done.  This is used by passes that need the PHI nodes for
278
   O_j even if it means that some arguments will come from the default
279
   definition of O_j's symbol.
280
 
281
   WARNING: If you need to use this flag, chances are that your pass
282
   may be doing something wrong.  Inserting PHI nodes for an old name
283
   where not all edges carry a new replacement may lead to silent
284
   codegen errors or spurious uninitialized warnings.  */
285
#define TODO_update_ssa_full_phi        (1 << 13)
286
 
287
/* Passes that update the SSA form on their own may want to delegate
288
   the updating of virtual names to the generic updater.  Since FUD
289
   chains are easier to maintain, this simplifies the work they need
290
   to do.  NOTE: If this flag is used, any OLD->NEW mappings for real
291
   names are explicitly destroyed and only the symbols marked for
292
   renaming are processed.  */
293
#define TODO_update_ssa_only_virtuals   (1 << 14)
294
 
295
/* Some passes leave unused local variables that can be removed from
296
   cfun->local_decls.  This reduces the size of dump files
297
   and the memory footprint for VAR_DECLs.  */
298
#define TODO_remove_unused_locals       (1 << 15)
299
 
300
/* Call df_finish at the end of the pass.  This is done after all of
301
   the dumpers have been allowed to run so that they have access to
302
   the instance before it is destroyed.  */
303
#define TODO_df_finish                  (1 << 17)
304
 
305
/* Call df_verify at the end of the pass if checking is enabled.  */
306
#define TODO_df_verify                  (1 << 18)
307
 
308
/* Internally used for the first instance of a pass.  */
309
#define TODO_mark_first_instance        (1 << 19)
310
 
311
/* Rebuild aliasing info.  */
312
#define TODO_rebuild_alias              (1 << 20)
313
 
314
/* Rebuild the addressable-vars bitmap and do register promotion.  */
315
#define TODO_update_address_taken       (1 << 21)
316
 
317
/* Rebuild the callgraph edges.  */
318
#define TODO_rebuild_cgraph_edges       (1 << 22)
319
 
320
/* Internally used in execute_function_todo().  */
321
#define TODO_update_ssa_any             \
322
    (TODO_update_ssa                    \
323
     | TODO_update_ssa_no_phi           \
324
     | TODO_update_ssa_full_phi         \
325
     | TODO_update_ssa_only_virtuals)
326
 
327
#define TODO_verify_all \
328
  (TODO_verify_ssa | TODO_verify_flow | TODO_verify_stmts)
329
 
330
 
331
/* Register pass info. */
332
 
333
enum pass_positioning_ops
334
{
335
  PASS_POS_INSERT_AFTER,  /* Insert after the reference pass.  */
336
  PASS_POS_INSERT_BEFORE, /* Insert before the reference pass.  */
337
  PASS_POS_REPLACE        /* Replace the reference pass.  */
338
};
339
 
340
struct register_pass_info
341
{
342
  struct opt_pass *pass;            /* New pass to register.  */
343
  const char *reference_pass_name;  /* Name of the reference pass for hooking
344
                                       up the new pass.  */
345
  int ref_pass_instance_number;     /* Insert the pass at the specified
346
                                       instance number of the reference pass.
347
                                       Do it for every instance if it is 0.  */
348
  enum pass_positioning_ops pos_op; /* how to insert the new pass.  */
349
};
350
 
351
extern void tree_lowering_passes (tree decl);
352
 
353
extern struct gimple_opt_pass pass_mudflap_1;
354
extern struct gimple_opt_pass pass_mudflap_2;
355
extern struct gimple_opt_pass pass_lower_cf;
356
extern struct gimple_opt_pass pass_refactor_eh;
357
extern struct gimple_opt_pass pass_lower_eh;
358
extern struct gimple_opt_pass pass_lower_eh_dispatch;
359
extern struct gimple_opt_pass pass_lower_resx;
360
extern struct gimple_opt_pass pass_build_cfg;
361
extern struct gimple_opt_pass pass_early_tree_profile;
362
extern struct gimple_opt_pass pass_referenced_vars;
363
extern struct gimple_opt_pass pass_cleanup_eh;
364
extern struct gimple_opt_pass pass_sra;
365
extern struct gimple_opt_pass pass_sra_early;
366
extern struct gimple_opt_pass pass_early_ipa_sra;
367
extern struct gimple_opt_pass pass_tail_recursion;
368
extern struct gimple_opt_pass pass_tail_calls;
369
extern struct gimple_opt_pass pass_tree_loop;
370
extern struct gimple_opt_pass pass_tree_loop_init;
371
extern struct gimple_opt_pass pass_lim;
372
extern struct gimple_opt_pass pass_tree_unswitch;
373
extern struct gimple_opt_pass pass_predcom;
374
extern struct gimple_opt_pass pass_iv_canon;
375
extern struct gimple_opt_pass pass_scev_cprop;
376
extern struct gimple_opt_pass pass_empty_loop;
377
extern struct gimple_opt_pass pass_record_bounds;
378
extern struct gimple_opt_pass pass_graphite;
379
extern struct gimple_opt_pass pass_graphite_transforms;
380
extern struct gimple_opt_pass pass_if_conversion;
381
extern struct gimple_opt_pass pass_loop_distribution;
382
extern struct gimple_opt_pass pass_vectorize;
383
extern struct gimple_opt_pass pass_slp_vectorize;
384
extern struct gimple_opt_pass pass_complete_unroll;
385
extern struct gimple_opt_pass pass_complete_unrolli;
386
extern struct gimple_opt_pass pass_parallelize_loops;
387
extern struct gimple_opt_pass pass_loop_prefetch;
388
extern struct gimple_opt_pass pass_iv_optimize;
389
extern struct gimple_opt_pass pass_tree_loop_done;
390
extern struct gimple_opt_pass pass_ch;
391
extern struct gimple_opt_pass pass_ccp;
392
extern struct gimple_opt_pass pass_phi_only_cprop;
393
extern struct gimple_opt_pass pass_build_ssa;
394
extern struct gimple_opt_pass pass_build_alias;
395
extern struct gimple_opt_pass pass_build_ealias;
396
extern struct gimple_opt_pass pass_dominator;
397
extern struct gimple_opt_pass pass_dce;
398
extern struct gimple_opt_pass pass_dce_loop;
399
extern struct gimple_opt_pass pass_cd_dce;
400
extern struct gimple_opt_pass pass_call_cdce;
401
extern struct gimple_opt_pass pass_merge_phi;
402
extern struct gimple_opt_pass pass_split_crit_edges;
403
extern struct gimple_opt_pass pass_pre;
404
extern unsigned int tail_merge_optimize (unsigned int);
405
extern struct gimple_opt_pass pass_profile;
406
extern struct gimple_opt_pass pass_strip_predict_hints;
407
extern struct gimple_opt_pass pass_lower_complex_O0;
408
extern struct gimple_opt_pass pass_lower_complex;
409
extern struct gimple_opt_pass pass_lower_vector;
410
extern struct gimple_opt_pass pass_lower_vector_ssa;
411
extern struct gimple_opt_pass pass_lower_omp;
412
extern struct gimple_opt_pass pass_diagnose_omp_blocks;
413
extern struct gimple_opt_pass pass_expand_omp;
414
extern struct gimple_opt_pass pass_expand_omp_ssa;
415
extern struct gimple_opt_pass pass_object_sizes;
416
extern struct gimple_opt_pass pass_strlen;
417
extern struct gimple_opt_pass pass_fold_builtins;
418
extern struct gimple_opt_pass pass_stdarg;
419
extern struct gimple_opt_pass pass_early_warn_uninitialized;
420
extern struct gimple_opt_pass pass_late_warn_uninitialized;
421
extern struct gimple_opt_pass pass_cse_reciprocals;
422
extern struct gimple_opt_pass pass_cse_sincos;
423
extern struct gimple_opt_pass pass_optimize_bswap;
424
extern struct gimple_opt_pass pass_optimize_widening_mul;
425
extern struct gimple_opt_pass pass_warn_function_return;
426
extern struct gimple_opt_pass pass_warn_function_noreturn;
427
extern struct gimple_opt_pass pass_cselim;
428
extern struct gimple_opt_pass pass_phiopt;
429
extern struct gimple_opt_pass pass_forwprop;
430
extern struct gimple_opt_pass pass_phiprop;
431
extern struct gimple_opt_pass pass_tree_ifcombine;
432
extern struct gimple_opt_pass pass_dse;
433
extern struct gimple_opt_pass pass_nrv;
434
extern struct gimple_opt_pass pass_rename_ssa_copies;
435
extern struct gimple_opt_pass pass_rest_of_compilation;
436
extern struct gimple_opt_pass pass_sink_code;
437
extern struct gimple_opt_pass pass_fre;
438
extern struct gimple_opt_pass pass_check_data_deps;
439
extern struct gimple_opt_pass pass_copy_prop;
440
extern struct gimple_opt_pass pass_vrp;
441
extern struct gimple_opt_pass pass_uncprop;
442
extern struct gimple_opt_pass pass_return_slot;
443
extern struct gimple_opt_pass pass_reassoc;
444
extern struct gimple_opt_pass pass_rebuild_cgraph_edges;
445
extern struct gimple_opt_pass pass_remove_cgraph_callee_edges;
446
extern struct gimple_opt_pass pass_build_cgraph_edges;
447
extern struct gimple_opt_pass pass_local_pure_const;
448
extern struct gimple_opt_pass pass_tracer;
449
extern struct gimple_opt_pass pass_warn_unused_result;
450
extern struct gimple_opt_pass pass_diagnose_tm_blocks;
451
extern struct gimple_opt_pass pass_lower_tm;
452
extern struct gimple_opt_pass pass_tm_init;
453
extern struct gimple_opt_pass pass_tm_mark;
454
extern struct gimple_opt_pass pass_tm_memopt;
455
extern struct gimple_opt_pass pass_tm_edges;
456
extern struct gimple_opt_pass pass_split_functions;
457
extern struct gimple_opt_pass pass_feedback_split_functions;
458
 
459
/* IPA Passes */
460
extern struct simple_ipa_opt_pass pass_ipa_lower_emutls;
461
extern struct simple_ipa_opt_pass pass_ipa_function_and_variable_visibility;
462
extern struct simple_ipa_opt_pass pass_ipa_tree_profile;
463
 
464
extern struct simple_ipa_opt_pass pass_early_local_passes;
465
 
466
extern struct ipa_opt_pass_d pass_ipa_whole_program_visibility;
467
extern struct ipa_opt_pass_d pass_ipa_lto_gimple_out;
468
extern struct simple_ipa_opt_pass pass_ipa_increase_alignment;
469
extern struct simple_ipa_opt_pass pass_ipa_matrix_reorg;
470
extern struct ipa_opt_pass_d pass_ipa_inline;
471
extern struct simple_ipa_opt_pass pass_ipa_free_lang_data;
472
extern struct ipa_opt_pass_d pass_ipa_cp;
473
extern struct ipa_opt_pass_d pass_ipa_reference;
474
extern struct ipa_opt_pass_d pass_ipa_pure_const;
475
extern struct simple_ipa_opt_pass pass_ipa_pta;
476
extern struct ipa_opt_pass_d pass_ipa_lto_wpa_fixup;
477
extern struct ipa_opt_pass_d pass_ipa_lto_finish_out;
478
extern struct simple_ipa_opt_pass pass_ipa_tm;
479
extern struct ipa_opt_pass_d pass_ipa_profile;
480
extern struct ipa_opt_pass_d pass_ipa_cdtor_merge;
481
 
482
extern struct gimple_opt_pass pass_all_optimizations;
483
extern struct gimple_opt_pass pass_cleanup_cfg_post_optimizing;
484
extern struct gimple_opt_pass pass_init_datastructures;
485
extern struct gimple_opt_pass pass_fixup_cfg;
486
 
487
extern struct rtl_opt_pass pass_expand;
488
extern struct rtl_opt_pass pass_init_function;
489
extern struct rtl_opt_pass pass_jump;
490
extern struct rtl_opt_pass pass_rtl_eh;
491
extern struct rtl_opt_pass pass_initial_value_sets;
492
extern struct rtl_opt_pass pass_unshare_all_rtl;
493
extern struct rtl_opt_pass pass_instantiate_virtual_regs;
494
extern struct rtl_opt_pass pass_rtl_fwprop;
495
extern struct rtl_opt_pass pass_rtl_fwprop_addr;
496
extern struct rtl_opt_pass pass_jump2;
497
extern struct rtl_opt_pass pass_lower_subreg;
498
extern struct rtl_opt_pass pass_cse;
499
extern struct rtl_opt_pass pass_fast_rtl_dce;
500
extern struct rtl_opt_pass pass_ud_rtl_dce;
501
extern struct rtl_opt_pass pass_rtl_dce;
502
extern struct rtl_opt_pass pass_rtl_dse1;
503
extern struct rtl_opt_pass pass_rtl_dse2;
504
extern struct rtl_opt_pass pass_rtl_dse3;
505
extern struct rtl_opt_pass pass_rtl_cprop;
506
extern struct rtl_opt_pass pass_rtl_pre;
507
extern struct rtl_opt_pass pass_rtl_hoist;
508
extern struct rtl_opt_pass pass_rtl_store_motion;
509
extern struct rtl_opt_pass pass_cse_after_global_opts;
510
extern struct rtl_opt_pass pass_rtl_ifcvt;
511
 
512
extern struct rtl_opt_pass pass_into_cfg_layout_mode;
513
extern struct rtl_opt_pass pass_outof_cfg_layout_mode;
514
 
515
extern struct rtl_opt_pass pass_loop2;
516
extern struct rtl_opt_pass pass_rtl_loop_init;
517
extern struct rtl_opt_pass pass_rtl_move_loop_invariants;
518
extern struct rtl_opt_pass pass_rtl_unswitch;
519
extern struct rtl_opt_pass pass_rtl_unroll_and_peel_loops;
520
extern struct rtl_opt_pass pass_rtl_doloop;
521
extern struct rtl_opt_pass pass_rtl_loop_done;
522
 
523
extern struct rtl_opt_pass pass_web;
524
extern struct rtl_opt_pass pass_cse2;
525
extern struct rtl_opt_pass pass_df_initialize_opt;
526
extern struct rtl_opt_pass pass_df_initialize_no_opt;
527
extern struct rtl_opt_pass pass_reginfo_init;
528
extern struct rtl_opt_pass pass_inc_dec;
529
extern struct rtl_opt_pass pass_stack_ptr_mod;
530
extern struct rtl_opt_pass pass_initialize_regs;
531
extern struct rtl_opt_pass pass_combine;
532
extern struct rtl_opt_pass pass_if_after_combine;
533
extern struct rtl_opt_pass pass_ree;
534
extern struct rtl_opt_pass pass_partition_blocks;
535
extern struct rtl_opt_pass pass_match_asm_constraints;
536
extern struct rtl_opt_pass pass_regmove;
537
extern struct rtl_opt_pass pass_split_all_insns;
538
extern struct rtl_opt_pass pass_fast_rtl_byte_dce;
539
extern struct rtl_opt_pass pass_lower_subreg2;
540
extern struct rtl_opt_pass pass_mode_switching;
541
extern struct rtl_opt_pass pass_sms;
542
extern struct rtl_opt_pass pass_sched;
543
extern struct rtl_opt_pass pass_ira;
544
extern struct rtl_opt_pass pass_reload;
545
extern struct rtl_opt_pass pass_postreload;
546
extern struct rtl_opt_pass pass_clean_state;
547
extern struct rtl_opt_pass pass_branch_prob;
548
extern struct rtl_opt_pass pass_value_profile_transformations;
549
extern struct rtl_opt_pass pass_postreload_cse;
550
extern struct rtl_opt_pass pass_gcse2;
551
extern struct rtl_opt_pass pass_split_after_reload;
552
extern struct rtl_opt_pass pass_branch_target_load_optimize1;
553
extern struct rtl_opt_pass pass_thread_prologue_and_epilogue;
554
extern struct rtl_opt_pass pass_stack_adjustments;
555
extern struct rtl_opt_pass pass_peephole2;
556
extern struct rtl_opt_pass pass_if_after_reload;
557
extern struct rtl_opt_pass pass_regrename;
558
extern struct rtl_opt_pass pass_cprop_hardreg;
559
extern struct rtl_opt_pass pass_reorder_blocks;
560
extern struct rtl_opt_pass pass_branch_target_load_optimize2;
561
extern struct rtl_opt_pass pass_leaf_regs;
562
extern struct rtl_opt_pass pass_split_before_sched2;
563
extern struct rtl_opt_pass pass_compare_elim_after_reload;
564
extern struct rtl_opt_pass pass_sched2;
565
extern struct rtl_opt_pass pass_stack_regs;
566
extern struct rtl_opt_pass pass_stack_regs_run;
567
extern struct rtl_opt_pass pass_df_finish;
568
extern struct rtl_opt_pass pass_compute_alignments;
569
extern struct rtl_opt_pass pass_duplicate_computed_gotos;
570
extern struct rtl_opt_pass pass_variable_tracking;
571
extern struct rtl_opt_pass pass_free_cfg;
572
extern struct rtl_opt_pass pass_machine_reorg;
573
extern struct rtl_opt_pass pass_cleanup_barriers;
574
extern struct rtl_opt_pass pass_delay_slots;
575
extern struct rtl_opt_pass pass_split_for_shorten_branches;
576
extern struct rtl_opt_pass pass_split_before_regstack;
577
extern struct rtl_opt_pass pass_convert_to_eh_region_ranges;
578
extern struct rtl_opt_pass pass_shorten_branches;
579
extern struct rtl_opt_pass pass_set_nothrow_function_flags;
580
extern struct rtl_opt_pass pass_dwarf2_frame;
581
extern struct rtl_opt_pass pass_final;
582
extern struct rtl_opt_pass pass_rtl_seqabstr;
583
extern struct gimple_opt_pass pass_release_ssa_names;
584
extern struct gimple_opt_pass pass_early_inline;
585
extern struct gimple_opt_pass pass_inline_parameters;
586
extern struct gimple_opt_pass pass_all_early_optimizations;
587
extern struct gimple_opt_pass pass_update_address_taken;
588
extern struct gimple_opt_pass pass_convert_switch;
589
 
590
/* The root of the compilation pass tree, once constructed.  */
591
extern struct opt_pass *all_passes, *all_small_ipa_passes, *all_lowering_passes,
592
                       *all_regular_ipa_passes, *all_lto_gen_passes, *all_late_ipa_passes;
593
 
594
/* Define a list of pass lists so that both passes.c and plugins can easily
595
   find all the pass lists.  */
596
#define GCC_PASS_LISTS \
597
  DEF_PASS_LIST (all_lowering_passes) \
598
  DEF_PASS_LIST (all_small_ipa_passes) \
599
  DEF_PASS_LIST (all_regular_ipa_passes) \
600
  DEF_PASS_LIST (all_lto_gen_passes) \
601
  DEF_PASS_LIST (all_passes)
602
 
603
#define DEF_PASS_LIST(LIST) PASS_LIST_NO_##LIST,
604
enum
605
{
606
  GCC_PASS_LISTS
607
  PASS_LIST_NUM
608
};
609
#undef DEF_PASS_LIST
610
 
611
/* This is used by plugins, and should also be used in
612
   passes.c:register_pass.  */
613
extern struct opt_pass **gcc_pass_lists[];
614
 
615
/* Current optimization pass.  */
616
extern struct opt_pass *current_pass;
617
 
618
extern struct opt_pass * get_pass_for_id (int);
619
extern bool execute_one_pass (struct opt_pass *);
620
extern void execute_pass_list (struct opt_pass *);
621
extern void execute_ipa_pass_list (struct opt_pass *);
622
extern void execute_ipa_summary_passes (struct ipa_opt_pass_d *);
623
extern void execute_all_ipa_transforms (void);
624
extern void execute_all_ipa_stmt_fixups (struct cgraph_node *, gimple *);
625
extern bool pass_init_dump_file (struct opt_pass *);
626
extern void pass_fini_dump_file (struct opt_pass *);
627
 
628
extern const char *get_current_pass_name (void);
629
extern void print_current_pass (FILE *);
630
extern void debug_pass (void);
631
extern void ipa_write_summaries (void);
632
extern void ipa_write_optimization_summaries (struct cgraph_node_set_def *,
633
                                              struct varpool_node_set_def *);
634
extern void ipa_read_summaries (void);
635
extern void ipa_read_optimization_summaries (void);
636
extern void register_one_dump_file (struct opt_pass *);
637
extern bool function_called_by_processed_nodes_p (void);
638
extern void register_pass (struct register_pass_info *);
639
 
640
/* Set to true if the pass is called the first time during compilation of the
641
   current function.  Note that using this information in the optimization
642
   passes is considered not to be clean, and it should be avoided if possible.
643
   This flag is currently used to prevent loops from being peeled repeatedly
644
   in jump threading; it will be removed once we preserve loop structures
645
   throughout the compilation -- we will be able to mark the affected loops
646
   directly in jump threading, and avoid peeling them next time.  */
647
extern bool first_pass_instance;
648
 
649
/* Declare for plugins.  */
650
extern void do_per_function_toporder (void (*) (void *), void *);
651
 
652
extern void disable_pass (const char *);
653
extern void enable_pass (const char *);
654
extern void dump_passes (void);
655
 
656
#endif /* GCC_TREE_PASS_H */

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