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6de9cd9a 1/* Definitions for describing one tree-ssa optimization pass.
e53a16e7 2 Copyright (C) 2004, 2005, 2006, 2007 Free Software Foundation, Inc.
6de9cd9a
DN		 3 Contributed by Richard Henderson <rth@redhat.com>
4
5This file is part of GCC.
6
7GCC is free software; you can redistribute it and/or modify
8it under the terms of the GNU General Public License as published by
9dcd6f09 9the Free Software Foundation; either version 3, or (at your option)
6de9cd9a
DN		 10any later version.
11
12GCC is distributed in the hope that it will be useful,
13but WITHOUT ANY WARRANTY; without even the implied warranty of
14MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
15GNU General Public License for more details.
16
17You should have received a copy of the GNU General Public License
9dcd6f09
NC		 18along with GCC; see the file COPYING3. If not see
19<http://www.gnu.org/licenses/>. */
6de9cd9a
DN		 20
21
22#ifndef GCC_TREE_PASS_H
23#define GCC_TREE_PASS_H 1
24
ef330312
PB		 25/* In tree-dump.c */
26
27/* Different tree dump places. When you add new tree dump places,
28 extend the DUMP_FILES array in tree-dump.c. */
29enum tree_dump_index
30{
31 TDI_none, /* No dump */
bbbe4e7b 32 TDI_cgraph, /* dump function call graph. */
ef330312
PB		 33 TDI_tu, /* dump the whole translation unit. */
34 TDI_class, /* dump class hierarchy. */
35 TDI_original, /* dump each function before optimizing it */
36 TDI_generic, /* dump each function after genericizing it */
37 TDI_nested, /* dump each function after unnesting it */
38 TDI_inlined, /* dump each function after inlining
39 within it. */
40 TDI_vcg, /* create a VCG graph file for each
41 function's flowgraph. */
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
ef330312
PB		 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
5e34206b 69#define TDF_GRAPH (1 << 13) /* a graph dump is being emitted */
38635499
DN		 70#define TDF_MEMSYMS (1 << 14) /* display memory symbols in expr.
71 Implies TDF_VOPS. */
5e34206b 72
438d798f
SM		 73#define TDF_DIAGNOSTIC (1 << 15) /* A dump to be put in a diagnostic
74 message. */
75
ef330312
PB		 76extern char *get_dump_file_name (enum tree_dump_index);
77extern int dump_enabled_p (enum tree_dump_index);
78extern int dump_initialized_p (enum tree_dump_index);
79extern FILE *dump_begin (enum tree_dump_index, int *);
80extern void dump_end (enum tree_dump_index, FILE *);
81extern void dump_node (tree, int, FILE *);
82extern int dump_switch_p (const char *);
83extern const char *dump_flag_name (enum tree_dump_index);
84
6de9cd9a
DN		 85/* Global variables used to communicate with passes. */
86extern FILE *dump_file;
87extern int dump_flags;
9f8628ba 88extern const char *dump_file_name;
6de9cd9a 89
9f8628ba
PB		 90/* Return the dump_file_info for the given phase. */
91extern struct dump_file_info *get_dump_file_info (enum tree_dump_index);
92
6de9cd9a
DN		 93/* Describe one pass. */
94struct tree_opt_pass
95{
96 /* Terse name of the pass used as a fragment of the dump file name. */
97 const char *name;
98
99 /* If non-null, this pass and all sub-passes are executed only if
100 the function returns true. */
101 bool (*gate) (void);
102
103 /* This is the code to run. If null, then there should be sub-passes
c2924966
DB		 104 otherwise this pass does nothing. The return value contains
105 TODOs to execute in addition to those in TODO_flags_finish. */
106 unsigned int (*execute) (void);
6de9cd9a
DN		 107
108 /* A list of sub-passes to run, dependent on gate predicate. */
109 struct tree_opt_pass *sub;
110
111 /* Next in the list of passes to run, independent of gate predicate. */
112 struct tree_opt_pass *next;
113
114 /* Static pass number, used as a fragment of the dump file name. */
b3fade83 115 int static_pass_number;
6de9cd9a
DN		 116
117 /* The timevar id associated with this pass. */
118 /* ??? Ideally would be dynamically assigned. */
119 unsigned int tv_id;
120
121 /* Sets of properties input and output from this pass. */
122 unsigned int properties_required;
123 unsigned int properties_provided;
124 unsigned int properties_destroyed;
125
126 /* Flags indicating common sets things to do before and after. */
127 unsigned int todo_flags_start;
128 unsigned int todo_flags_finish;
9f8628ba
PB		 129
130 /* Letter for RTL dumps. */
131 char letter;
132};
133
134/* Define a tree dump switch. */
135struct dump_file_info
136{
137 const char *suffix; /* suffix to give output file. */
138 const char *swtch; /* command line switch */
f46fe224 139 const char *glob; /* command line glob */
9f8628ba
PB		 140 int flags; /* user flags */
141 int state; /* state of play */
142 int num; /* dump file number */
143 int letter; /* enabling letter for RTL dumps */
6de9cd9a
DN		 144};
145
146/* Pass properties. */
147#define PROP_gimple_any (1 << 0) /* entire gimple grammar */
148#define PROP_gimple_lcf (1 << 1) /* lowered control flow */
149#define PROP_gimple_leh (1 << 2) /* lowered eh */
150#define PROP_cfg (1 << 3)
151#define PROP_referenced_vars (1 << 4)
152#define PROP_pta (1 << 5)
153#define PROP_ssa (1 << 6)
154#define PROP_no_crit_edges (1 << 7)
2f8e398b 155#define PROP_rtl (1 << 8)
c1b763fa 156#define PROP_alias (1 << 9)
953ff289 157#define PROP_gimple_lomp (1 << 10) /* lowered OpenMP directives */
2f8e398b
PB		 158
159#define PROP_trees \
bbbe4e7b 160 (PROP_gimple_any | PROP_gimple_lcf | PROP_gimple_leh | PROP_gimple_lomp)
6de9cd9a
DN		 161
162/* To-do flags. */
0bca51f0
DN		 163#define TODO_dump_func (1 << 0)
164#define TODO_ggc_collect (1 << 1)
165#define TODO_verify_ssa (1 << 2)
166#define TODO_verify_flow (1 << 3)
167#define TODO_verify_stmts (1 << 4)
168#define TODO_cleanup_cfg (1 << 5)
169#define TODO_verify_loops (1 << 6)
b4861090 170#define TODO_dump_cgraph (1 << 7)
f4b3ca72 171#define TODO_remove_functions (1 << 8)
45a80bb9 172#define TODO_rebuild_frequencies (1 << 9)
0bca51f0
DN		 173
174/* To-do flags for calls to update_ssa. */
175
176/* Update the SSA form inserting PHI nodes for newly exposed symbols
177 and virtual names marked for updating. When updating real names,
178 only insert PHI nodes for a real name O_j in blocks reached by all
179 the new and old definitions for O_j. If the iterated dominance
180 frontier for O_j is not pruned, we may end up inserting PHI nodes
181 in blocks that have one or more edges with no incoming definition
182 for O_j. This would lead to uninitialized warnings for O_j's
183 symbol. */
45a80bb9 184#define TODO_update_ssa (1 << 10)
0bca51f0
DN		 185
186/* Update the SSA form without inserting any new PHI nodes at all.
187 This is used by passes that have either inserted all the PHI nodes
188 themselves or passes that need only to patch use-def and def-def
189 chains for virtuals (e.g., DCE). */
45a80bb9 190#define TODO_update_ssa_no_phi (1 << 11)
0bca51f0 191
0fa2e4df 192/* Insert PHI nodes everywhere they are needed. No pruning of the
0bca51f0
DN		 193 IDF is done. This is used by passes that need the PHI nodes for
194 O_j even if it means that some arguments will come from the default
195 definition of O_j's symbol (e.g., pass_linear_transform).
196
197 WARNING: If you need to use this flag, chances are that your pass
198 may be doing something wrong. Inserting PHI nodes for an old name
199 where not all edges carry a new replacement may lead to silent
200 codegen errors or spurious uninitialized warnings. */
45a80bb9 201#define TODO_update_ssa_full_phi (1 << 12)
0bca51f0
DN		 202
203/* Passes that update the SSA form on their own may want to delegate
204 the updating of virtual names to the generic updater. Since FUD
205 chains are easier to maintain, this simplifies the work they need
206 to do. NOTE: If this flag is used, any OLD->NEW mappings for real
207 names are explicitly destroyed and only the symbols marked for
208 renaming are processed. */
45a80bb9 209#define TODO_update_ssa_only_virtuals (1 << 13)
0bca51f0 210
3f519b35
RG		 211/* Some passes leave unused local variables that can be removed from
212 cfun->unexpanded_var_list. This reduces the size of dump files and
213 the memory footprint for VAR_DECLs. */
45a80bb9 214#define TODO_remove_unused_locals (1 << 14)
3f519b35 215
bbbe4e7b
PB		 216/* Internally used for the first in a sequence of passes. It is set
217 for the passes that are handed to register_dump_files. */
45a80bb9 218#define TODO_set_props (1 << 15)
bbbe4e7b 219
6fb5fa3c
DB		 220/* Call df_finish at the end of the pass. This is done after all of
221 the dumpers have been allowed to run so that they have access to
222 the instance before it is destroyed. */
223#define TODO_df_finish (1 << 16)
224
b02b9b53 225/* Internally used for the first instance of a pass. */
6fb5fa3c 226#define TODO_mark_first_instance (1 << 17)
b02b9b53 227
0bca51f0
DN		 228#define TODO_update_ssa_any \
229 (TODO_update_ssa \
230 | TODO_update_ssa_no_phi \
231 | TODO_update_ssa_full_phi \
232 | TODO_update_ssa_only_virtuals)
6de9cd9a
DN		 233
234#define TODO_verify_all \
235 (TODO_verify_ssa | TODO_verify_flow | TODO_verify_stmts)
236
e21aff8a 237extern void tree_lowering_passes (tree decl);
b4861090 238
6de9cd9a
DN		 239extern struct tree_opt_pass pass_mudflap_1;
240extern struct tree_opt_pass pass_mudflap_2;
241extern struct tree_opt_pass pass_remove_useless_stmts;
242extern struct tree_opt_pass pass_lower_cf;
243extern struct tree_opt_pass pass_lower_eh;
244extern struct tree_opt_pass pass_build_cfg;
245extern struct tree_opt_pass pass_tree_profile;
d63db217 246extern struct tree_opt_pass pass_early_tree_profile;
ef330312 247extern struct tree_opt_pass pass_cleanup_cfg;
6de9cd9a 248extern struct tree_opt_pass pass_referenced_vars;
6de9cd9a 249extern struct tree_opt_pass pass_sra;
029f45bd 250extern struct tree_opt_pass pass_sra_early;
6de9cd9a
DN		 251extern struct tree_opt_pass pass_tail_recursion;
252extern struct tree_opt_pass pass_tail_calls;
9fa26457
SB		 253extern struct tree_opt_pass pass_tree_loop;
254extern struct tree_opt_pass pass_tree_loop_init;
a7e5372d 255extern struct tree_opt_pass pass_lim;
9fa26457 256extern struct tree_opt_pass pass_tree_unswitch;
bbc8a8dc 257extern struct tree_opt_pass pass_predcom;
82b85a85 258extern struct tree_opt_pass pass_iv_canon;
684aaf29 259extern struct tree_opt_pass pass_scev_cprop;
b7eae7b8 260extern struct tree_opt_pass pass_empty_loop;
f3cd574f 261extern struct tree_opt_pass pass_record_bounds;
40923b20 262extern struct tree_opt_pass pass_if_conversion;
79fe1b3b 263extern struct tree_opt_pass pass_vectorize;
82b85a85 264extern struct tree_opt_pass pass_complete_unroll;
17684618 265extern struct tree_opt_pass pass_loop_prefetch;
8b11a64c 266extern struct tree_opt_pass pass_iv_optimize;
9fa26457 267extern struct tree_opt_pass pass_tree_loop_done;
6de9cd9a
DN		 268extern struct tree_opt_pass pass_ch;
269extern struct tree_opt_pass pass_ccp;
e67c25c7 270extern struct tree_opt_pass pass_phi_only_cprop;
6de9cd9a
DN		 271extern struct tree_opt_pass pass_build_ssa;
272extern struct tree_opt_pass pass_del_ssa;
273extern struct tree_opt_pass pass_dominator;
274extern struct tree_opt_pass pass_dce;
49896738 275extern struct tree_opt_pass pass_dce_loop;
6de9cd9a 276extern struct tree_opt_pass pass_cd_dce;
23ab2e4e 277extern struct tree_opt_pass pass_merge_phi;
6de9cd9a
DN		 278extern struct tree_opt_pass pass_may_alias;
279extern struct tree_opt_pass pass_split_crit_edges;
280extern struct tree_opt_pass pass_pre;
281extern struct tree_opt_pass pass_profile;
e41d82f5 282extern struct tree_opt_pass pass_lower_complex_O0;
2b725155
RH		 283extern struct tree_opt_pass pass_lower_complex;
284extern struct tree_opt_pass pass_lower_vector;
26277d41 285extern struct tree_opt_pass pass_lower_vector_ssa;
953ff289 286extern struct tree_opt_pass pass_lower_omp;
50674e96 287extern struct tree_opt_pass pass_expand_omp;
10a0d495 288extern struct tree_opt_pass pass_object_sizes;
6de9cd9a 289extern struct tree_opt_pass pass_fold_builtins;
9d30f3c1 290extern struct tree_opt_pass pass_stdarg;
6de9cd9a
DN		 291extern struct tree_opt_pass pass_early_warn_uninitialized;
292extern struct tree_opt_pass pass_late_warn_uninitialized;
f8912a55 293extern struct tree_opt_pass pass_cse_reciprocals;
2f397a93 294extern struct tree_opt_pass pass_cse_sincos;
6b889d89 295extern struct tree_opt_pass pass_convert_to_rsqrt;
6de9cd9a 296extern struct tree_opt_pass pass_warn_function_return;
aa313ed4 297extern struct tree_opt_pass pass_warn_function_noreturn;
6de9cd9a
DN		 298extern struct tree_opt_pass pass_phiopt;
299extern struct tree_opt_pass pass_forwprop;
3b48ccbc 300extern struct tree_opt_pass pass_phiprop;
18d08014 301extern struct tree_opt_pass pass_tree_ifcombine;
6de9cd9a
DN		 302extern struct tree_opt_pass pass_dse;
303extern struct tree_opt_pass pass_nrv;
1eb3331e 304extern struct tree_opt_pass pass_mark_used_blocks;
6de9cd9a 305extern struct tree_opt_pass pass_rename_ssa_copies;
2f8e398b
PB		 306extern struct tree_opt_pass pass_expand;
307extern struct tree_opt_pass pass_rest_of_compilation;
fa555252 308extern struct tree_opt_pass pass_sink_code;
ff2ad0f7 309extern struct tree_opt_pass pass_fre;
599eabdb 310extern struct tree_opt_pass pass_linear_transform;
3d8864c0 311extern struct tree_opt_pass pass_check_data_deps;
0bca51f0
DN		 312extern struct tree_opt_pass pass_copy_prop;
313extern struct tree_opt_pass pass_store_ccp;
314extern struct tree_opt_pass pass_store_copy_prop;
315extern struct tree_opt_pass pass_vrp;
c75ab022 316extern struct tree_opt_pass pass_create_structure_vars;
fef0657c 317extern struct tree_opt_pass pass_uncprop;
fa47911c 318extern struct tree_opt_pass pass_return_slot;
012309e6 319extern struct tree_opt_pass pass_reassoc;
d63db217 320extern struct tree_opt_pass pass_rebuild_cgraph_edges;
2dee695b 321extern struct tree_opt_pass pass_build_cgraph_edges;
fe1f8f44 322extern struct tree_opt_pass pass_reset_cc_flags;
6de9cd9a 323
012309e6 324/* IPA Passes */
43d861a5 325extern struct tree_opt_pass pass_ipa_matrix_reorg;
19734dd8 326extern struct tree_opt_pass pass_ipa_cp;
b4861090 327extern struct tree_opt_pass pass_ipa_inline;
873aa8f5 328extern struct tree_opt_pass pass_ipa_early_inline;
ea900239
DB		 329extern struct tree_opt_pass pass_ipa_reference;
330extern struct tree_opt_pass pass_ipa_pure_const;
331extern struct tree_opt_pass pass_ipa_type_escape;
4ee00913 332extern struct tree_opt_pass pass_ipa_pta;
ef330312 333extern struct tree_opt_pass pass_early_local_passes;
f4b3ca72
JH		 334extern struct tree_opt_pass pass_ipa_increase_alignment;
335extern struct tree_opt_pass pass_ipa_function_and_variable_visibility;
ef330312
PB		 336
337extern struct tree_opt_pass pass_all_optimizations;
338extern struct tree_opt_pass pass_cleanup_cfg_post_optimizing;
339extern struct tree_opt_pass pass_free_cfg_annotations;
340extern struct tree_opt_pass pass_free_datastructures;
341extern struct tree_opt_pass pass_init_datastructures;
342extern struct tree_opt_pass pass_fixup_cfg;
343
ef330312
PB		 344extern struct tree_opt_pass pass_init_function;
345extern struct tree_opt_pass pass_jump;
ef330312
PB		 346extern struct tree_opt_pass pass_rtl_eh;
347extern struct tree_opt_pass pass_initial_value_sets;
348extern struct tree_opt_pass pass_unshare_all_rtl;
349extern struct tree_opt_pass pass_instantiate_virtual_regs;
a52b023a
PB		 350extern struct tree_opt_pass pass_rtl_fwprop;
351extern struct tree_opt_pass pass_rtl_fwprop_addr;
ef330312 352extern struct tree_opt_pass pass_jump2;
e53a16e7 353extern struct tree_opt_pass pass_lower_subreg;
ef330312 354extern struct tree_opt_pass pass_cse;
6fb5fa3c
DB		 355extern struct tree_opt_pass pass_fast_rtl_dce;
356extern struct tree_opt_pass pass_ud_rtl_dce;
357extern struct tree_opt_pass pass_rtl_dce;
358extern struct tree_opt_pass pass_rtl_dse1;
359extern struct tree_opt_pass pass_rtl_dse2;
360extern struct tree_opt_pass pass_rtl_dse3;
ef330312 361extern struct tree_opt_pass pass_gcse;
ef330312 362extern struct tree_opt_pass pass_jump_bypass;
ef330312
PB		 363extern struct tree_opt_pass pass_profiling;
364extern struct tree_opt_pass pass_rtl_ifcvt;
365extern struct tree_opt_pass pass_tracer;
9fa26457 366
dacb3cda
SB		 367extern struct tree_opt_pass pass_into_cfg_layout_mode;
368extern struct tree_opt_pass pass_outof_cfg_layout_mode;
369
ef330312 370extern struct tree_opt_pass pass_loop2;
9fa26457
SB		 371extern struct tree_opt_pass pass_rtl_loop_init;
372extern struct tree_opt_pass pass_rtl_move_loop_invariants;
373extern struct tree_opt_pass pass_rtl_unswitch;
374extern struct tree_opt_pass pass_rtl_unroll_and_peel_loops;
375extern struct tree_opt_pass pass_rtl_doloop;
376extern struct tree_opt_pass pass_rtl_loop_done;
377
ef330312
PB		 378extern struct tree_opt_pass pass_web;
379extern struct tree_opt_pass pass_cse2;
6fb5fa3c
DB		 380extern struct tree_opt_pass pass_df_initialize_opt;
381extern struct tree_opt_pass pass_df_initialize_no_opt;
382extern struct tree_opt_pass pass_regclass_init;
383extern struct tree_opt_pass pass_subregs_of_mode_init;
384extern struct tree_opt_pass pass_subregs_of_mode_finish;
385extern struct tree_opt_pass pass_inc_dec;
6fb5fa3c
DB		 386extern struct tree_opt_pass pass_stack_ptr_mod;
387extern struct tree_opt_pass pass_initialize_regs;
ef330312
PB		 388extern struct tree_opt_pass pass_combine;
389extern struct tree_opt_pass pass_if_after_combine;
390extern struct tree_opt_pass pass_partition_blocks;
d8d72314 391extern struct tree_opt_pass pass_match_asm_constraints;
ef330312
PB		 392extern struct tree_opt_pass pass_regmove;
393extern struct tree_opt_pass pass_split_all_insns;
e53a16e7 394extern struct tree_opt_pass pass_lower_subreg2;
ef330312 395extern struct tree_opt_pass pass_mode_switching;
8cd37d0b 396extern struct tree_opt_pass pass_see;
ef330312
PB		 397extern struct tree_opt_pass pass_sms;
398extern struct tree_opt_pass pass_sched;
399extern struct tree_opt_pass pass_local_alloc;
400extern struct tree_opt_pass pass_global_alloc;
401extern struct tree_opt_pass pass_postreload;
402extern struct tree_opt_pass pass_clean_state;
403extern struct tree_opt_pass pass_branch_prob;
404extern struct tree_opt_pass pass_value_profile_transformations;
ef330312
PB		 405extern struct tree_opt_pass pass_postreload_cse;
406extern struct tree_opt_pass pass_gcse2;
6fb5fa3c
DB		 407extern struct tree_opt_pass pass_split_after_reload;
408extern struct tree_opt_pass pass_branch_target_load_optimize1;
409extern struct tree_opt_pass pass_thread_prologue_and_epilogue;
ef330312
PB		 410extern struct tree_opt_pass pass_stack_adjustments;
411extern struct tree_opt_pass pass_peephole2;
412extern struct tree_opt_pass pass_if_after_reload;
413extern struct tree_opt_pass pass_regrename;
6fb5fa3c 414extern struct tree_opt_pass pass_cprop_hardreg;
ef330312 415extern struct tree_opt_pass pass_reorder_blocks;
6fb5fa3c 416extern struct tree_opt_pass pass_branch_target_load_optimize2;
ef330312 417extern struct tree_opt_pass pass_leaf_regs;
6fb5fa3c 418extern struct tree_opt_pass pass_split_before_sched2;
ef330312
PB		 419extern struct tree_opt_pass pass_sched2;
420extern struct tree_opt_pass pass_stack_regs;
6fb5fa3c
DB		 421extern struct tree_opt_pass pass_stack_regs_run;
422extern struct tree_opt_pass pass_df_finish;
ef330312
PB		 423extern struct tree_opt_pass pass_compute_alignments;
424extern struct tree_opt_pass pass_duplicate_computed_gotos;
425extern struct tree_opt_pass pass_variable_tracking;
426extern struct tree_opt_pass pass_free_cfg;
427extern struct tree_opt_pass pass_machine_reorg;
ef330312
PB		 428extern struct tree_opt_pass pass_cleanup_barriers;
429extern struct tree_opt_pass pass_delay_slots;
430extern struct tree_opt_pass pass_split_for_shorten_branches;
431extern struct tree_opt_pass pass_split_before_regstack;
432extern struct tree_opt_pass pass_convert_to_eh_region_ranges;
433extern struct tree_opt_pass pass_shorten_branches;
434extern struct tree_opt_pass pass_set_nothrow_function_flags;
435extern struct tree_opt_pass pass_final;
38109dab 436extern struct tree_opt_pass pass_rtl_seqabstr;
7faade0f 437extern struct tree_opt_pass pass_release_ssa_names;
873aa8f5
JH		 438extern struct tree_opt_pass pass_early_inline;
439extern struct tree_opt_pass pass_inline_parameters;
440extern struct tree_opt_pass pass_apply_inline;
441extern struct tree_opt_pass pass_all_early_optimizations;
ef330312
PB		 442
443/* The root of the compilation pass tree, once constructed. */
444extern struct tree_opt_pass *all_passes, *all_ipa_passes, *all_lowering_passes;
445
446extern void execute_pass_list (struct tree_opt_pass *);
447extern void execute_ipa_pass_list (struct tree_opt_pass *);
6fb5fa3c
DB		 448extern void print_current_pass (FILE *);
449extern void debug_pass (void);
b4861090 450
b02b9b53
ZD		 451/* Set to true if the pass is called the first time during compilation of the
452 current function. Note that using this information in the optimization
453 passes is considered not to be clean, and it should be avoided if possible.
454 This flag is currently used to prevent loops from being peeled repeatedly
455 in jump threading; it will be removed once we preserve loop structures
456 throughout the compilation -- we will be able to mark the affected loops
457 directly in jump threading, and avoid peeling them next time. */
458extern bool first_pass_instance;
459
6de9cd9a 460#endif /* GCC_TREE_PASS_H */
Mirror of https://gcc.gnu.org/git/gcc.git