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[/] [openrisc/] [trunk/] [gnu-stable/] [gcc-4.5.1/] [gcc/] [tree-pass.h] - Blame information for rev 843

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

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