1 /* Definitions for describing one tree-ssa optimization pass.
2 Copyright (C) 2004-2014 Free Software Foundation, Inc.
3 Contributed by Richard Henderson <rth@redhat.com>
5 This file is part of GCC.
7 GCC is free software; you can redistribute it and/or modify
8 it under the terms of the GNU General Public License as published by
9 the Free Software Foundation; either version 3, or (at your option)
12 GCC is distributed in the hope that it will be useful,
13 but WITHOUT ANY WARRANTY; without even the implied warranty of
14 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
15 GNU General Public License for more details.
17 You should have received a copy of the GNU General Public License
18 along with GCC; see the file COPYING3. If not see
19 <http://www.gnu.org/licenses/>. */
22 #ifndef GCC_TREE_PASS_H
23 #define GCC_TREE_PASS_H 1
30 /* Optimization pass type. */
39 /* Metadata for a pass, non-varying across all instances of a pass. */
42 /* Optimization pass type. */
43 enum opt_pass_type type
;
45 /* Terse name of the pass used as a fragment of the dump file
46 name. If the name starts with a star, no dump happens. */
49 /* The -fopt-info optimization group flags as defined in dumpfile.h. */
50 unsigned int optinfo_flags
;
52 /* The timevar id associated with this pass. */
53 /* ??? Ideally would be dynamically assigned. */
56 /* Sets of properties input and output from this pass. */
57 unsigned int properties_required
;
58 unsigned int properties_provided
;
59 unsigned int properties_destroyed
;
61 /* Flags indicating common sets things to do before and after. */
62 unsigned int todo_flags_start
;
63 unsigned int todo_flags_finish
;
71 /* An instance of a pass. This is also "pass_data" to minimize the
72 changes in existing code. */
73 class opt_pass
: public pass_data
76 virtual ~opt_pass () { }
78 /* Create a copy of this pass.
80 Passes that can have multiple instances must provide their own
81 implementation of this, to ensure that any sharing of state between
82 this instance and the copy is "wired up" correctly.
84 The default implementation prints an error message and aborts. */
85 virtual opt_pass
*clone ();
87 /* This pass and all sub-passes are executed only if the function returns
88 true. The default implementation returns true. */
89 virtual bool gate (function
*fun
);
91 /* This is the code to run. If this is not overridden, then there should
92 be sub-passes otherwise this pass does nothing.
93 The return value contains TODOs to execute in addition to those in
95 virtual unsigned int execute (function
*fun
);
98 opt_pass (const pass_data
&, gcc::context
*);
101 /* A list of sub-passes to run, dependent on gate predicate. */
104 /* Next in the list of passes to run, independent of gate predicate. */
107 /* Static pass number, used as a fragment of the dump file name. */
108 int static_pass_number
;
110 /* When a given dump file is being initialized, this flag is set to
111 true if the corresponding TDF_graph dump file has also been
113 bool graph_dump_initialized
;
116 gcc::context
*m_ctxt
;
119 /* Description of GIMPLE pass. */
120 class gimple_opt_pass
: public opt_pass
123 gimple_opt_pass (const pass_data
& data
, gcc::context
*ctxt
)
124 : opt_pass (data
, ctxt
)
129 /* Description of RTL pass. */
130 class rtl_opt_pass
: public opt_pass
133 rtl_opt_pass (const pass_data
& data
, gcc::context
*ctxt
)
134 : opt_pass (data
, ctxt
)
141 struct lto_symtab_encoder_d
;
143 /* Description of IPA pass with generate summary, write, execute, read and
145 class ipa_opt_pass_d
: public opt_pass
148 /* IPA passes can analyze function body and variable initializers
149 using this hook and produce summary. */
150 void (*generate_summary
) (void);
152 /* This hook is used to serialize IPA summaries on disk. */
153 void (*write_summary
) (void);
155 /* This hook is used to deserialize IPA summaries from disk. */
156 void (*read_summary
) (void);
158 /* This hook is used to serialize IPA optimization summaries on disk. */
159 void (*write_optimization_summary
) (void);
161 /* This hook is used to deserialize IPA summaries from disk. */
162 void (*read_optimization_summary
) (void);
164 /* Hook to convert gimple stmt uids into true gimple statements. The second
165 parameter is an array of statements indexed by their uid. */
166 void (*stmt_fixup
) (struct cgraph_node
*, gimple
*);
168 /* Results of interprocedural propagation of an IPA pass is applied to
169 function body via this hook. */
170 unsigned int function_transform_todo_flags_start
;
171 unsigned int (*function_transform
) (struct cgraph_node
*);
172 void (*variable_transform
) (varpool_node
*);
175 ipa_opt_pass_d (const pass_data
& data
, gcc::context
*ctxt
,
176 void (*generate_summary
) (void),
177 void (*write_summary
) (void),
178 void (*read_summary
) (void),
179 void (*write_optimization_summary
) (void),
180 void (*read_optimization_summary
) (void),
181 void (*stmt_fixup
) (struct cgraph_node
*, gimple
*),
182 unsigned int function_transform_todo_flags_start
,
183 unsigned int (*function_transform
) (struct cgraph_node
*),
184 void (*variable_transform
) (varpool_node
*))
185 : opt_pass (data
, ctxt
),
186 generate_summary (generate_summary
),
187 write_summary (write_summary
),
188 read_summary (read_summary
),
189 write_optimization_summary (write_optimization_summary
),
190 read_optimization_summary (read_optimization_summary
),
191 stmt_fixup (stmt_fixup
),
192 function_transform_todo_flags_start (function_transform_todo_flags_start
),
193 function_transform (function_transform
),
194 variable_transform (variable_transform
)
199 /* Description of simple IPA pass. Simple IPA passes have just one execute
201 class simple_ipa_opt_pass
: public opt_pass
204 simple_ipa_opt_pass (const pass_data
& data
, gcc::context
*ctxt
)
205 : opt_pass (data
, ctxt
)
210 /* Pass properties. */
211 #define PROP_gimple_any (1 << 0) /* entire gimple grammar */
212 #define PROP_gimple_lcf (1 << 1) /* lowered control flow */
213 #define PROP_gimple_leh (1 << 2) /* lowered eh */
214 #define PROP_cfg (1 << 3)
215 #define PROP_ssa (1 << 5)
216 #define PROP_no_crit_edges (1 << 6)
217 #define PROP_rtl (1 << 7)
218 #define PROP_gimple_lomp (1 << 8) /* lowered OpenMP directives */
219 #define PROP_cfglayout (1 << 9) /* cfglayout mode on RTL */
220 #define PROP_gimple_lcx (1 << 10) /* lowered complex */
221 #define PROP_loops (1 << 11) /* preserve loop structures */
222 #define PROP_gimple_lvec (1 << 12) /* lowered vector */
225 (PROP_gimple_any | PROP_gimple_lcf | PROP_gimple_leh | PROP_gimple_lomp)
228 #define TODO_do_not_ggc_collect (1 << 1)
229 #define TODO_cleanup_cfg (1 << 5)
230 #define TODO_verify_il (1 << 6)
231 #define TODO_dump_symtab (1 << 7)
232 #define TODO_remove_functions (1 << 8)
233 #define TODO_rebuild_frequencies (1 << 9)
235 /* To-do flags for calls to update_ssa. */
237 /* Update the SSA form inserting PHI nodes for newly exposed symbols
238 and virtual names marked for updating. When updating real names,
239 only insert PHI nodes for a real name O_j in blocks reached by all
240 the new and old definitions for O_j. If the iterated dominance
241 frontier for O_j is not pruned, we may end up inserting PHI nodes
242 in blocks that have one or more edges with no incoming definition
243 for O_j. This would lead to uninitialized warnings for O_j's
245 #define TODO_update_ssa (1 << 11)
247 /* Update the SSA form without inserting any new PHI nodes at all.
248 This is used by passes that have either inserted all the PHI nodes
249 themselves or passes that need only to patch use-def and def-def
250 chains for virtuals (e.g., DCE). */
251 #define TODO_update_ssa_no_phi (1 << 12)
253 /* Insert PHI nodes everywhere they are needed. No pruning of the
254 IDF is done. This is used by passes that need the PHI nodes for
255 O_j even if it means that some arguments will come from the default
256 definition of O_j's symbol.
258 WARNING: If you need to use this flag, chances are that your pass
259 may be doing something wrong. Inserting PHI nodes for an old name
260 where not all edges carry a new replacement may lead to silent
261 codegen errors or spurious uninitialized warnings. */
262 #define TODO_update_ssa_full_phi (1 << 13)
264 /* Passes that update the SSA form on their own may want to delegate
265 the updating of virtual names to the generic updater. Since FUD
266 chains are easier to maintain, this simplifies the work they need
267 to do. NOTE: If this flag is used, any OLD->NEW mappings for real
268 names are explicitly destroyed and only the symbols marked for
269 renaming are processed. */
270 #define TODO_update_ssa_only_virtuals (1 << 14)
272 /* Some passes leave unused local variables that can be removed from
273 cfun->local_decls. This reduces the size of dump files
274 and the memory footprint for VAR_DECLs. */
275 #define TODO_remove_unused_locals (1 << 15)
277 /* Call df_finish at the end of the pass. This is done after all of
278 the dumpers have been allowed to run so that they have access to
279 the instance before it is destroyed. */
280 #define TODO_df_finish (1 << 17)
282 /* Call df_verify at the end of the pass if checking is enabled. */
283 #define TODO_df_verify (1 << 18)
285 /* Internally used for the first instance of a pass. */
286 #define TODO_mark_first_instance (1 << 19)
288 /* Rebuild aliasing info. */
289 #define TODO_rebuild_alias (1 << 20)
291 /* Rebuild the addressable-vars bitmap and do register promotion. */
292 #define TODO_update_address_taken (1 << 21)
294 /* Rebuild the callgraph edges. */
295 #define TODO_rebuild_cgraph_edges (1 << 22)
297 /* Internally used in execute_function_todo(). */
298 #define TODO_update_ssa_any \
300 | TODO_update_ssa_no_phi \
301 | TODO_update_ssa_full_phi \
302 | TODO_update_ssa_only_virtuals)
304 #define TODO_verify_all TODO_verify_il
307 /* Register pass info. */
309 enum pass_positioning_ops
311 PASS_POS_INSERT_AFTER
, /* Insert after the reference pass. */
312 PASS_POS_INSERT_BEFORE
, /* Insert before the reference pass. */
313 PASS_POS_REPLACE
/* Replace the reference pass. */
316 struct register_pass_info
318 opt_pass
*pass
; /* New pass to register. */
319 const char *reference_pass_name
; /* Name of the reference pass for hooking
321 int ref_pass_instance_number
; /* Insert the pass at the specified
322 instance number of the reference pass.
323 Do it for every instance if it is 0. */
324 enum pass_positioning_ops pos_op
; /* how to insert the new pass. */
327 /* Registers a new pass. Either fill out the register_pass_info or specify
328 the individual parameters. The pass object is expected to have been
329 allocated using operator new and the pass manager takes the ownership of
331 extern void register_pass (register_pass_info
*);
332 extern void register_pass (opt_pass
* pass
, pass_positioning_ops pos
,
333 const char* ref_pass_name
, int ref_pass_inst_number
);
335 extern gimple_opt_pass
*make_pass_asan (gcc::context
*ctxt
);
336 extern gimple_opt_pass
*make_pass_asan_O0 (gcc::context
*ctxt
);
337 extern gimple_opt_pass
*make_pass_tsan (gcc::context
*ctxt
);
338 extern gimple_opt_pass
*make_pass_tsan_O0 (gcc::context
*ctxt
);
339 extern gimple_opt_pass
*make_pass_lower_cf (gcc::context
*ctxt
);
340 extern gimple_opt_pass
*make_pass_refactor_eh (gcc::context
*ctxt
);
341 extern gimple_opt_pass
*make_pass_lower_eh (gcc::context
*ctxt
);
342 extern gimple_opt_pass
*make_pass_lower_eh_dispatch (gcc::context
*ctxt
);
343 extern gimple_opt_pass
*make_pass_lower_resx (gcc::context
*ctxt
);
344 extern gimple_opt_pass
*make_pass_build_cfg (gcc::context
*ctxt
);
345 extern gimple_opt_pass
*make_pass_early_tree_profile (gcc::context
*ctxt
);
346 extern gimple_opt_pass
*make_pass_cleanup_eh (gcc::context
*ctxt
);
347 extern gimple_opt_pass
*make_pass_sra (gcc::context
*ctxt
);
348 extern gimple_opt_pass
*make_pass_sra_early (gcc::context
*ctxt
);
349 extern gimple_opt_pass
*make_pass_early_ipa_sra (gcc::context
*ctxt
);
350 extern gimple_opt_pass
*make_pass_tail_recursion (gcc::context
*ctxt
);
351 extern gimple_opt_pass
*make_pass_tail_calls (gcc::context
*ctxt
);
352 extern gimple_opt_pass
*make_pass_fix_loops (gcc::context
*ctxt
);
353 extern gimple_opt_pass
*make_pass_tree_loop (gcc::context
*ctxt
);
354 extern gimple_opt_pass
*make_pass_tree_no_loop (gcc::context
*ctxt
);
355 extern gimple_opt_pass
*make_pass_tree_loop_init (gcc::context
*ctxt
);
356 extern gimple_opt_pass
*make_pass_lim (gcc::context
*ctxt
);
357 extern gimple_opt_pass
*make_pass_tree_unswitch (gcc::context
*ctxt
);
358 extern gimple_opt_pass
*make_pass_predcom (gcc::context
*ctxt
);
359 extern gimple_opt_pass
*make_pass_iv_canon (gcc::context
*ctxt
);
360 extern gimple_opt_pass
*make_pass_scev_cprop (gcc::context
*ctxt
);
361 extern gimple_opt_pass
*make_pass_empty_loop (gcc::context
*ctxt
);
362 extern gimple_opt_pass
*make_pass_record_bounds (gcc::context
*ctxt
);
363 extern gimple_opt_pass
*make_pass_graphite (gcc::context
*ctxt
);
364 extern gimple_opt_pass
*make_pass_graphite_transforms (gcc::context
*ctxt
);
365 extern gimple_opt_pass
*make_pass_if_conversion (gcc::context
*ctxt
);
366 extern gimple_opt_pass
*make_pass_loop_distribution (gcc::context
*ctxt
);
367 extern gimple_opt_pass
*make_pass_vectorize (gcc::context
*ctxt
);
368 extern gimple_opt_pass
*make_pass_slp_vectorize (gcc::context
*ctxt
);
369 extern gimple_opt_pass
*make_pass_complete_unroll (gcc::context
*ctxt
);
370 extern gimple_opt_pass
*make_pass_complete_unrolli (gcc::context
*ctxt
);
371 extern gimple_opt_pass
*make_pass_parallelize_loops (gcc::context
*ctxt
);
372 extern gimple_opt_pass
*make_pass_loop_prefetch (gcc::context
*ctxt
);
373 extern gimple_opt_pass
*make_pass_iv_optimize (gcc::context
*ctxt
);
374 extern gimple_opt_pass
*make_pass_tree_loop_done (gcc::context
*ctxt
);
375 extern gimple_opt_pass
*make_pass_ch (gcc::context
*ctxt
);
376 extern gimple_opt_pass
*make_pass_ccp (gcc::context
*ctxt
);
377 extern gimple_opt_pass
*make_pass_phi_only_cprop (gcc::context
*ctxt
);
378 extern gimple_opt_pass
*make_pass_build_ssa (gcc::context
*ctxt
);
379 extern gimple_opt_pass
*make_pass_build_alias (gcc::context
*ctxt
);
380 extern gimple_opt_pass
*make_pass_build_ealias (gcc::context
*ctxt
);
381 extern gimple_opt_pass
*make_pass_dominator (gcc::context
*ctxt
);
382 extern gimple_opt_pass
*make_pass_dce (gcc::context
*ctxt
);
383 extern gimple_opt_pass
*make_pass_cd_dce (gcc::context
*ctxt
);
384 extern gimple_opt_pass
*make_pass_call_cdce (gcc::context
*ctxt
);
385 extern gimple_opt_pass
*make_pass_merge_phi (gcc::context
*ctxt
);
386 extern gimple_opt_pass
*make_pass_split_crit_edges (gcc::context
*ctxt
);
387 extern gimple_opt_pass
*make_pass_pre (gcc::context
*ctxt
);
388 extern unsigned int tail_merge_optimize (unsigned int);
389 extern gimple_opt_pass
*make_pass_profile (gcc::context
*ctxt
);
390 extern gimple_opt_pass
*make_pass_strip_predict_hints (gcc::context
*ctxt
);
391 extern gimple_opt_pass
*make_pass_lower_complex_O0 (gcc::context
*ctxt
);
392 extern gimple_opt_pass
*make_pass_lower_complex (gcc::context
*ctxt
);
393 extern gimple_opt_pass
*make_pass_lower_vector (gcc::context
*ctxt
);
394 extern gimple_opt_pass
*make_pass_lower_vector_ssa (gcc::context
*ctxt
);
395 extern gimple_opt_pass
*make_pass_lower_omp (gcc::context
*ctxt
);
396 extern gimple_opt_pass
*make_pass_diagnose_omp_blocks (gcc::context
*ctxt
);
397 extern gimple_opt_pass
*make_pass_expand_omp (gcc::context
*ctxt
);
398 extern gimple_opt_pass
*make_pass_object_sizes (gcc::context
*ctxt
);
399 extern gimple_opt_pass
*make_pass_strlen (gcc::context
*ctxt
);
400 extern gimple_opt_pass
*make_pass_fold_builtins (gcc::context
*ctxt
);
401 extern gimple_opt_pass
*make_pass_stdarg (gcc::context
*ctxt
);
402 extern gimple_opt_pass
*make_pass_early_warn_uninitialized (gcc::context
*ctxt
);
403 extern gimple_opt_pass
*make_pass_late_warn_uninitialized (gcc::context
*ctxt
);
404 extern gimple_opt_pass
*make_pass_cse_reciprocals (gcc::context
*ctxt
);
405 extern gimple_opt_pass
*make_pass_cse_sincos (gcc::context
*ctxt
);
406 extern gimple_opt_pass
*make_pass_optimize_bswap (gcc::context
*ctxt
);
407 extern gimple_opt_pass
*make_pass_optimize_widening_mul (gcc::context
*ctxt
);
408 extern gimple_opt_pass
*make_pass_warn_function_return (gcc::context
*ctxt
);
409 extern gimple_opt_pass
*make_pass_warn_function_noreturn (gcc::context
*ctxt
);
410 extern gimple_opt_pass
*make_pass_cselim (gcc::context
*ctxt
);
411 extern gimple_opt_pass
*make_pass_phiopt (gcc::context
*ctxt
);
412 extern gimple_opt_pass
*make_pass_forwprop (gcc::context
*ctxt
);
413 extern gimple_opt_pass
*make_pass_phiprop (gcc::context
*ctxt
);
414 extern gimple_opt_pass
*make_pass_tree_ifcombine (gcc::context
*ctxt
);
415 extern gimple_opt_pass
*make_pass_dse (gcc::context
*ctxt
);
416 extern gimple_opt_pass
*make_pass_nrv (gcc::context
*ctxt
);
417 extern gimple_opt_pass
*make_pass_rename_ssa_copies (gcc::context
*ctxt
);
418 extern gimple_opt_pass
*make_pass_sink_code (gcc::context
*ctxt
);
419 extern gimple_opt_pass
*make_pass_fre (gcc::context
*ctxt
);
420 extern gimple_opt_pass
*make_pass_check_data_deps (gcc::context
*ctxt
);
421 extern gimple_opt_pass
*make_pass_copy_prop (gcc::context
*ctxt
);
422 extern gimple_opt_pass
*make_pass_isolate_erroneous_paths (gcc::context
*ctxt
);
423 extern gimple_opt_pass
*make_pass_vrp (gcc::context
*ctxt
);
424 extern gimple_opt_pass
*make_pass_uncprop (gcc::context
*ctxt
);
425 extern gimple_opt_pass
*make_pass_return_slot (gcc::context
*ctxt
);
426 extern gimple_opt_pass
*make_pass_reassoc (gcc::context
*ctxt
);
427 extern gimple_opt_pass
*make_pass_rebuild_cgraph_edges (gcc::context
*ctxt
);
428 extern gimple_opt_pass
*make_pass_remove_cgraph_callee_edges (gcc::context
430 extern gimple_opt_pass
*make_pass_build_cgraph_edges (gcc::context
*ctxt
);
431 extern gimple_opt_pass
*make_pass_local_pure_const (gcc::context
*ctxt
);
432 extern gimple_opt_pass
*make_pass_tracer (gcc::context
*ctxt
);
433 extern gimple_opt_pass
*make_pass_warn_unused_result (gcc::context
*ctxt
);
434 extern gimple_opt_pass
*make_pass_diagnose_tm_blocks (gcc::context
*ctxt
);
435 extern gimple_opt_pass
*make_pass_lower_tm (gcc::context
*ctxt
);
436 extern gimple_opt_pass
*make_pass_tm_init (gcc::context
*ctxt
);
437 extern gimple_opt_pass
*make_pass_tm_mark (gcc::context
*ctxt
);
438 extern gimple_opt_pass
*make_pass_tm_memopt (gcc::context
*ctxt
);
439 extern gimple_opt_pass
*make_pass_tm_edges (gcc::context
*ctxt
);
440 extern gimple_opt_pass
*make_pass_split_functions (gcc::context
*ctxt
);
441 extern gimple_opt_pass
*make_pass_feedback_split_functions (gcc::context
*ctxt
);
442 extern gimple_opt_pass
*make_pass_strength_reduction (gcc::context
*ctxt
);
443 extern gimple_opt_pass
*make_pass_vtable_verify (gcc::context
*ctxt
);
444 extern gimple_opt_pass
*make_pass_ubsan (gcc::context
*ctxt
);
445 extern gimple_opt_pass
*make_pass_sanopt (gcc::context
*ctxt
);
448 extern simple_ipa_opt_pass
*make_pass_ipa_lower_emutls (gcc::context
*ctxt
);
449 extern simple_ipa_opt_pass
450 *make_pass_ipa_function_and_variable_visibility (gcc::context
*ctxt
);
451 extern simple_ipa_opt_pass
*make_pass_ipa_tree_profile (gcc::context
*ctxt
);
453 extern simple_ipa_opt_pass
*make_pass_early_local_passes (gcc::context
*ctxt
);
455 extern ipa_opt_pass_d
*make_pass_ipa_whole_program_visibility (gcc::context
457 extern simple_ipa_opt_pass
*make_pass_ipa_increase_alignment (gcc::context
459 extern ipa_opt_pass_d
*make_pass_ipa_inline (gcc::context
*ctxt
);
460 extern simple_ipa_opt_pass
*make_pass_ipa_free_lang_data (gcc::context
*ctxt
);
461 extern simple_ipa_opt_pass
*make_pass_ipa_free_inline_summary (gcc::context
463 extern ipa_opt_pass_d
*make_pass_ipa_cp (gcc::context
*ctxt
);
464 extern ipa_opt_pass_d
*make_pass_ipa_devirt (gcc::context
*ctxt
);
465 extern ipa_opt_pass_d
*make_pass_ipa_reference (gcc::context
*ctxt
);
466 extern ipa_opt_pass_d
*make_pass_ipa_pure_const (gcc::context
*ctxt
);
467 extern simple_ipa_opt_pass
*make_pass_ipa_pta (gcc::context
*ctxt
);
468 extern simple_ipa_opt_pass
*make_pass_ipa_tm (gcc::context
*ctxt
);
469 extern simple_ipa_opt_pass
*make_pass_omp_simd_clone (gcc::context
*ctxt
);
470 extern ipa_opt_pass_d
*make_pass_ipa_profile (gcc::context
*ctxt
);
471 extern ipa_opt_pass_d
*make_pass_ipa_cdtor_merge (gcc::context
*ctxt
);
472 extern ipa_opt_pass_d
*make_pass_ipa_single_use (gcc::context
*ctxt
);
473 extern ipa_opt_pass_d
*make_pass_ipa_comdats (gcc::context
*ctxt
);
475 extern gimple_opt_pass
*make_pass_cleanup_cfg_post_optimizing (gcc::context
477 extern gimple_opt_pass
*make_pass_init_datastructures (gcc::context
*ctxt
);
478 extern gimple_opt_pass
*make_pass_fixup_cfg (gcc::context
*ctxt
);
480 extern rtl_opt_pass
*make_pass_expand (gcc::context
*ctxt
);
481 extern rtl_opt_pass
*make_pass_instantiate_virtual_regs (gcc::context
*ctxt
);
482 extern rtl_opt_pass
*make_pass_rtl_fwprop (gcc::context
*ctxt
);
483 extern rtl_opt_pass
*make_pass_rtl_fwprop_addr (gcc::context
*ctxt
);
484 extern rtl_opt_pass
*make_pass_jump (gcc::context
*ctxt
);
485 extern rtl_opt_pass
*make_pass_jump2 (gcc::context
*ctxt
);
486 extern rtl_opt_pass
*make_pass_lower_subreg (gcc::context
*ctxt
);
487 extern rtl_opt_pass
*make_pass_cse (gcc::context
*ctxt
);
488 extern rtl_opt_pass
*make_pass_fast_rtl_dce (gcc::context
*ctxt
);
489 extern rtl_opt_pass
*make_pass_ud_rtl_dce (gcc::context
*ctxt
);
490 extern rtl_opt_pass
*make_pass_rtl_dce (gcc::context
*ctxt
);
491 extern rtl_opt_pass
*make_pass_rtl_dse1 (gcc::context
*ctxt
);
492 extern rtl_opt_pass
*make_pass_rtl_dse2 (gcc::context
*ctxt
);
493 extern rtl_opt_pass
*make_pass_rtl_dse3 (gcc::context
*ctxt
);
494 extern rtl_opt_pass
*make_pass_rtl_cprop (gcc::context
*ctxt
);
495 extern rtl_opt_pass
*make_pass_rtl_pre (gcc::context
*ctxt
);
496 extern rtl_opt_pass
*make_pass_rtl_hoist (gcc::context
*ctxt
);
497 extern rtl_opt_pass
*make_pass_rtl_store_motion (gcc::context
*ctxt
);
498 extern rtl_opt_pass
*make_pass_cse_after_global_opts (gcc::context
*ctxt
);
499 extern rtl_opt_pass
*make_pass_rtl_ifcvt (gcc::context
*ctxt
);
501 extern rtl_opt_pass
*make_pass_into_cfg_layout_mode (gcc::context
*ctxt
);
502 extern rtl_opt_pass
*make_pass_outof_cfg_layout_mode (gcc::context
*ctxt
);
504 extern rtl_opt_pass
*make_pass_loop2 (gcc::context
*ctxt
);
505 extern rtl_opt_pass
*make_pass_rtl_loop_init (gcc::context
*ctxt
);
506 extern rtl_opt_pass
*make_pass_rtl_move_loop_invariants (gcc::context
*ctxt
);
507 extern rtl_opt_pass
*make_pass_rtl_unroll_and_peel_loops (gcc::context
*ctxt
);
508 extern rtl_opt_pass
*make_pass_rtl_doloop (gcc::context
*ctxt
);
509 extern rtl_opt_pass
*make_pass_rtl_loop_done (gcc::context
*ctxt
);
511 extern rtl_opt_pass
*make_pass_web (gcc::context
*ctxt
);
512 extern rtl_opt_pass
*make_pass_cse2 (gcc::context
*ctxt
);
513 extern rtl_opt_pass
*make_pass_df_initialize_opt (gcc::context
*ctxt
);
514 extern rtl_opt_pass
*make_pass_df_initialize_no_opt (gcc::context
*ctxt
);
515 extern rtl_opt_pass
*make_pass_reginfo_init (gcc::context
*ctxt
);
516 extern rtl_opt_pass
*make_pass_inc_dec (gcc::context
*ctxt
);
517 extern rtl_opt_pass
*make_pass_stack_ptr_mod (gcc::context
*ctxt
);
518 extern rtl_opt_pass
*make_pass_initialize_regs (gcc::context
*ctxt
);
519 extern rtl_opt_pass
*make_pass_combine (gcc::context
*ctxt
);
520 extern rtl_opt_pass
*make_pass_if_after_combine (gcc::context
*ctxt
);
521 extern rtl_opt_pass
*make_pass_ree (gcc::context
*ctxt
);
522 extern rtl_opt_pass
*make_pass_partition_blocks (gcc::context
*ctxt
);
523 extern rtl_opt_pass
*make_pass_match_asm_constraints (gcc::context
*ctxt
);
524 extern rtl_opt_pass
*make_pass_split_all_insns (gcc::context
*ctxt
);
525 extern rtl_opt_pass
*make_pass_fast_rtl_byte_dce (gcc::context
*ctxt
);
526 extern rtl_opt_pass
*make_pass_lower_subreg2 (gcc::context
*ctxt
);
527 extern rtl_opt_pass
*make_pass_mode_switching (gcc::context
*ctxt
);
528 extern rtl_opt_pass
*make_pass_sms (gcc::context
*ctxt
);
529 extern rtl_opt_pass
*make_pass_sched (gcc::context
*ctxt
);
530 extern rtl_opt_pass
*make_pass_live_range_shrinkage (gcc::context
*ctxt
);
531 extern rtl_opt_pass
*make_pass_ira (gcc::context
*ctxt
);
532 extern rtl_opt_pass
*make_pass_reload (gcc::context
*ctxt
);
533 extern rtl_opt_pass
*make_pass_clean_state (gcc::context
*ctxt
);
534 extern rtl_opt_pass
*make_pass_branch_prob (gcc::context
*ctxt
);
535 extern rtl_opt_pass
*make_pass_value_profile_transformations (gcc::context
537 extern rtl_opt_pass
*make_pass_postreload_cse (gcc::context
*ctxt
);
538 extern rtl_opt_pass
*make_pass_gcse2 (gcc::context
*ctxt
);
539 extern rtl_opt_pass
*make_pass_split_after_reload (gcc::context
*ctxt
);
540 extern rtl_opt_pass
*make_pass_branch_target_load_optimize1 (gcc::context
542 extern rtl_opt_pass
*make_pass_thread_prologue_and_epilogue (gcc::context
544 extern rtl_opt_pass
*make_pass_stack_adjustments (gcc::context
*ctxt
);
545 extern rtl_opt_pass
*make_pass_peephole2 (gcc::context
*ctxt
);
546 extern rtl_opt_pass
*make_pass_if_after_reload (gcc::context
*ctxt
);
547 extern rtl_opt_pass
*make_pass_regrename (gcc::context
*ctxt
);
548 extern rtl_opt_pass
*make_pass_cprop_hardreg (gcc::context
*ctxt
);
549 extern rtl_opt_pass
*make_pass_reorder_blocks (gcc::context
*ctxt
);
550 extern rtl_opt_pass
*make_pass_branch_target_load_optimize2 (gcc::context
552 extern rtl_opt_pass
*make_pass_leaf_regs (gcc::context
*ctxt
);
553 extern rtl_opt_pass
*make_pass_split_before_sched2 (gcc::context
*ctxt
);
554 extern rtl_opt_pass
*make_pass_compare_elim_after_reload (gcc::context
*ctxt
);
555 extern rtl_opt_pass
*make_pass_sched2 (gcc::context
*ctxt
);
556 extern rtl_opt_pass
*make_pass_stack_regs (gcc::context
*ctxt
);
557 extern rtl_opt_pass
*make_pass_stack_regs_run (gcc::context
*ctxt
);
558 extern rtl_opt_pass
*make_pass_df_finish (gcc::context
*ctxt
);
559 extern rtl_opt_pass
*make_pass_compute_alignments (gcc::context
*ctxt
);
560 extern rtl_opt_pass
*make_pass_duplicate_computed_gotos (gcc::context
*ctxt
);
561 extern rtl_opt_pass
*make_pass_variable_tracking (gcc::context
*ctxt
);
562 extern rtl_opt_pass
*make_pass_free_cfg (gcc::context
*ctxt
);
563 extern rtl_opt_pass
*make_pass_machine_reorg (gcc::context
*ctxt
);
564 extern rtl_opt_pass
*make_pass_cleanup_barriers (gcc::context
*ctxt
);
565 extern rtl_opt_pass
*make_pass_delay_slots (gcc::context
*ctxt
);
566 extern rtl_opt_pass
*make_pass_split_for_shorten_branches (gcc::context
*ctxt
);
567 extern rtl_opt_pass
*make_pass_split_before_regstack (gcc::context
*ctxt
);
568 extern rtl_opt_pass
*make_pass_convert_to_eh_region_ranges (gcc::context
*ctxt
);
569 extern rtl_opt_pass
*make_pass_shorten_branches (gcc::context
*ctxt
);
570 extern rtl_opt_pass
*make_pass_set_nothrow_function_flags (gcc::context
*ctxt
);
571 extern rtl_opt_pass
*make_pass_dwarf2_frame (gcc::context
*ctxt
);
572 extern rtl_opt_pass
*make_pass_final (gcc::context
*ctxt
);
573 extern rtl_opt_pass
*make_pass_rtl_seqabstr (gcc::context
*ctxt
);
574 extern gimple_opt_pass
*make_pass_release_ssa_names (gcc::context
*ctxt
);
575 extern gimple_opt_pass
*make_pass_early_inline (gcc::context
*ctxt
);
576 extern gimple_opt_pass
*make_pass_inline_parameters (gcc::context
*ctxt
);
577 extern gimple_opt_pass
*make_pass_update_address_taken (gcc::context
*ctxt
);
578 extern gimple_opt_pass
*make_pass_convert_switch (gcc::context
*ctxt
);
580 /* Current optimization pass. */
581 extern opt_pass
*current_pass
;
583 extern bool execute_one_pass (opt_pass
*);
584 extern void execute_pass_list (function
*, opt_pass
*);
585 extern void execute_ipa_pass_list (opt_pass
*);
586 extern void execute_ipa_summary_passes (ipa_opt_pass_d
*);
587 extern void execute_all_ipa_transforms (void);
588 extern void execute_all_ipa_stmt_fixups (struct cgraph_node
*, gimple
*);
589 extern bool pass_init_dump_file (opt_pass
*);
590 extern void pass_fini_dump_file (opt_pass
*);
592 extern const char *get_current_pass_name (void);
593 extern void print_current_pass (FILE *);
594 extern void debug_pass (void);
595 extern void ipa_write_summaries (bool is_omp
);
596 extern void ipa_write_optimization_summaries (struct lto_symtab_encoder_d
*);
597 extern void ipa_read_summaries (void);
598 extern void ipa_read_optimization_summaries (void);
599 extern void register_one_dump_file (opt_pass
*);
600 extern bool function_called_by_processed_nodes_p (void);
602 /* Set to true if the pass is called the first time during compilation of the
603 current function. Note that using this information in the optimization
604 passes is considered not to be clean, and it should be avoided if possible.
605 This flag is currently used to prevent loops from being peeled repeatedly
606 in jump threading; it will be removed once we preserve loop structures
607 throughout the compilation -- we will be able to mark the affected loops
608 directly in jump threading, and avoid peeling them next time. */
609 extern bool first_pass_instance
;
611 /* Declare for plugins. */
612 extern void do_per_function_toporder (void (*) (function
*, void *), void *);
614 extern void disable_pass (const char *);
615 extern void enable_pass (const char *);
616 extern void dump_passes (void);
618 #endif /* GCC_TREE_PASS_H */