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[/] [scarts/] [trunk/] [toolchain/] [scarts-gcc/] [gcc-4.1.1/] [gcc/] [tree-pass.h] - Blame information for rev 20

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1 12 jlechner
/* Definitions for describing one tree-ssa optimization pass.
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   Copyright (C) 2004, 2005 Free Software Foundation, Inc.
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   Contributed by Richard Henderson <rth@redhat.com>
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This file is part of GCC.
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GCC is free software; you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation; either version 2, or (at your option)
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any later version.
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GCC is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with GCC; see the file COPYING.  If not, write to
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the Free Software Foundation, 51 Franklin Street, Fifth Floor,
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Boston, MA 02110-1301, USA.  */
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#ifndef GCC_TREE_PASS_H
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#define GCC_TREE_PASS_H 1
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26
/* In tree-dump.c */
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/* Different tree dump places.  When you add new tree dump places,
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   extend the DUMP_FILES array in tree-dump.c.  */
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enum tree_dump_index
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{
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  TDI_none,                     /* No dump */
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  TDI_tu,                       /* dump the whole translation unit.  */
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  TDI_class,                    /* dump class hierarchy.  */
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  TDI_original,                 /* dump each function before optimizing it */
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  TDI_generic,                  /* dump each function after genericizing it */
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  TDI_nested,                   /* dump each function after unnesting it */
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  TDI_inlined,                  /* dump each function after inlining
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                                   within it.  */
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  TDI_vcg,                      /* create a VCG graph file for each
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                                   function's flowgraph.  */
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  TDI_tree_all,                 /* enable all the GENERIC/GIMPLE dumps.  */
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  TDI_rtl_all,                  /* enable all the RTL dumps.  */
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  TDI_ipa_all,                  /* enable all the IPA dumps.  */
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  TDI_cgraph,                   /* dump function call graph.  */
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  TDI_end
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};
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/* Bit masks to control dumping. Not all values are applicable to
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   all dumps. Add new ones at the end. When you define new
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   values, extend the DUMP_OPTIONS array in tree-dump.c */
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#define TDF_ADDRESS     (1 << 0)        /* dump node addresses */
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#define TDF_SLIM        (1 << 1)        /* don't go wild following links */
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#define TDF_RAW         (1 << 2)        /* don't unparse the function */
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#define TDF_DETAILS     (1 << 3)        /* show more detailed info about
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                                           each pass */
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#define TDF_STATS       (1 << 4)        /* dump various statistics about
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                                           each pass */
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#define TDF_BLOCKS      (1 << 5)        /* display basic block boundaries */
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#define TDF_VOPS        (1 << 6)        /* display virtual operands */
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#define TDF_LINENO      (1 << 7)        /* display statement line numbers */
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#define TDF_UID         (1 << 8)        /* display decl UIDs */
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#define TDF_TREE        (1 << 9)        /* is a tree dump */
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#define TDF_RTL         (1 << 10)       /* is a RTL dump */
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#define TDF_IPA         (1 << 11)       /* is an IPA dump */
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#define TDF_STMTADDR    (1 << 12)       /* Address of stmt.  */
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#define TDF_GRAPH       (1 << 13)       /* a graph dump is being emitted */
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extern char *get_dump_file_name (enum tree_dump_index);
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extern int dump_enabled_p (enum tree_dump_index);
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extern int dump_initialized_p (enum tree_dump_index);
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extern FILE *dump_begin (enum tree_dump_index, int *);
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extern void dump_end (enum tree_dump_index, FILE *);
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extern void dump_node (tree, int, FILE *);
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extern int dump_switch_p (const char *);
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extern const char *dump_flag_name (enum tree_dump_index);
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81
/* Global variables used to communicate with passes.  */
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extern FILE *dump_file;
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extern int dump_flags;
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extern const char *dump_file_name;
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86
/* Return the dump_file_info for the given phase.  */
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extern struct dump_file_info *get_dump_file_info (enum tree_dump_index);
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89
/* Describe one pass.  */
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struct tree_opt_pass
91
{
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  /* Terse name of the pass used as a fragment of the dump file name.  */
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  const char *name;
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95
  /* If non-null, this pass and all sub-passes are executed only if
96
     the function returns true.  */
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  bool (*gate) (void);
98
 
99
  /* This is the code to run.  If null, then there should be sub-passes
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     otherwise this pass does nothing.  */
101
  void (*execute) (void);
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103
  /* A list of sub-passes to run, dependent on gate predicate.  */
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  struct tree_opt_pass *sub;
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106
  /* Next in the list of passes to run, independent of gate predicate.  */
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  struct tree_opt_pass *next;
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109
  /* Static pass number, used as a fragment of the dump file name.  */
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  int static_pass_number;
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112
  /* The timevar id associated with this pass.  */
113
  /* ??? Ideally would be dynamically assigned.  */
114
  unsigned int tv_id;
115
 
116
  /* Sets of properties input and output from this pass.  */
117
  unsigned int properties_required;
118
  unsigned int properties_provided;
119
  unsigned int properties_destroyed;
120
 
121
  /* Flags indicating common sets things to do before and after.  */
122
  unsigned int todo_flags_start;
123
  unsigned int todo_flags_finish;
124
 
125
  /* Letter for RTL dumps.  */
126
  char letter;
127
};
128
 
129
/* Define a tree dump switch.  */
130
struct dump_file_info
131
{
132
  const char *suffix;           /* suffix to give output file.  */
133
  const char *swtch;            /* command line switch */
134
  const char *glob;             /* command line glob  */
135
  int flags;                    /* user flags */
136
  int state;                    /* state of play */
137
  int num;                      /* dump file number */
138
  int letter;                   /* enabling letter for RTL dumps */
139
};
140
 
141
/* Pass properties.  */
142
#define PROP_gimple_any         (1 << 0)        /* entire gimple grammar */
143
#define PROP_gimple_lcf         (1 << 1)        /* lowered control flow */
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#define PROP_gimple_leh         (1 << 2)        /* lowered eh */
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#define PROP_cfg                (1 << 3)
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#define PROP_referenced_vars    (1 << 4)
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#define PROP_pta                (1 << 5)
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#define PROP_ssa                (1 << 6)
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#define PROP_no_crit_edges      (1 << 7)
150
#define PROP_rtl                (1 << 8)
151
#define PROP_alias              (1 << 9)
152
 
153
#define PROP_trees \
154
  (PROP_gimple_any | PROP_gimple_lcf | PROP_gimple_leh)
155
 
156
/* To-do flags.  */
157
#define TODO_dump_func                  (1 << 0)
158
#define TODO_ggc_collect                (1 << 1)
159
#define TODO_verify_ssa                 (1 << 2) 
160
#define TODO_verify_flow                (1 << 3)
161
#define TODO_verify_stmts               (1 << 4)
162
#define TODO_cleanup_cfg                (1 << 5)
163
#define TODO_verify_loops               (1 << 6)
164
#define TODO_dump_cgraph                (1 << 7)
165
 
166
/* To-do flags for calls to update_ssa.  */
167
 
168
/* Update the SSA form inserting PHI nodes for newly exposed symbols
169
   and virtual names marked for updating.  When updating real names,
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   only insert PHI nodes for a real name O_j in blocks reached by all
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   the new and old definitions for O_j.  If the iterated dominance
172
   frontier for O_j is not pruned, we may end up inserting PHI nodes
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   in blocks that have one or more edges with no incoming definition
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   for O_j.  This would lead to uninitialized warnings for O_j's
175
   symbol.  */
176
#define TODO_update_ssa                 (1 << 7)
177
 
178
/* Update the SSA form without inserting any new PHI nodes at all.
179
   This is used by passes that have either inserted all the PHI nodes
180
   themselves or passes that need only to patch use-def and def-def
181
   chains for virtuals (e.g., DCE).  */
182
#define TODO_update_ssa_no_phi          (1 << 8)
183
 
184
/* Insert PHI nodes everywhere they are needed.  No pruning of the
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   IDF is done.  This is used by passes that need the PHI nodes for
186
   O_j even if it means that some arguments will come from the default
187
   definition of O_j's symbol (e.g., pass_linear_transform).
188
 
189
   WARNING: If you need to use this flag, chances are that your pass
190
   may be doing something wrong.  Inserting PHI nodes for an old name
191
   where not all edges carry a new replacement may lead to silent
192
   codegen errors or spurious uninitialized warnings.  */
193
#define TODO_update_ssa_full_phi        (1 << 9)
194
 
195
/* Passes that update the SSA form on their own may want to delegate
196
   the updating of virtual names to the generic updater.  Since FUD
197
   chains are easier to maintain, this simplifies the work they need
198
   to do.  NOTE: If this flag is used, any OLD->NEW mappings for real
199
   names are explicitly destroyed and only the symbols marked for
200
   renaming are processed.  */
201
#define TODO_update_ssa_only_virtuals   (1 << 10)
202
 
203
#define TODO_update_ssa_any             \
204
    (TODO_update_ssa                    \
205
     | TODO_update_ssa_no_phi           \
206
     | TODO_update_ssa_full_phi         \
207
     | TODO_update_ssa_only_virtuals)
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209
#define TODO_verify_all \
210
  (TODO_verify_ssa | TODO_verify_flow | TODO_verify_stmts)
211
 
212
extern void tree_lowering_passes (tree decl);
213
 
214
extern struct tree_opt_pass pass_mudflap_1;
215
extern struct tree_opt_pass pass_mudflap_2;
216
extern struct tree_opt_pass pass_remove_useless_stmts;
217
extern struct tree_opt_pass pass_lower_cf;
218
extern struct tree_opt_pass pass_lower_eh;
219
extern struct tree_opt_pass pass_build_cfg;
220
extern struct tree_opt_pass pass_tree_profile;
221
extern struct tree_opt_pass pass_early_tree_profile;
222
extern struct tree_opt_pass pass_cleanup_cfg;
223
extern struct tree_opt_pass pass_referenced_vars;
224
extern struct tree_opt_pass pass_sra;
225
extern struct tree_opt_pass pass_tail_recursion;
226
extern struct tree_opt_pass pass_tail_calls;
227
extern struct tree_opt_pass pass_tree_loop;
228
extern struct tree_opt_pass pass_tree_loop_init;
229
extern struct tree_opt_pass pass_lim;
230
extern struct tree_opt_pass pass_tree_unswitch;
231
extern struct tree_opt_pass pass_iv_canon;
232
extern struct tree_opt_pass pass_scev_cprop;
233
extern struct tree_opt_pass pass_empty_loop;
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extern struct tree_opt_pass pass_record_bounds;
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extern struct tree_opt_pass pass_if_conversion;
236
extern struct tree_opt_pass pass_vectorize;
237
extern struct tree_opt_pass pass_complete_unroll;
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extern struct tree_opt_pass pass_iv_optimize;
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extern struct tree_opt_pass pass_tree_loop_done;
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extern struct tree_opt_pass pass_ch;
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extern struct tree_opt_pass pass_ccp;
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extern struct tree_opt_pass pass_build_ssa;
243
extern struct tree_opt_pass pass_del_ssa;
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extern struct tree_opt_pass pass_dominator;
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extern struct tree_opt_pass pass_dce;
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extern struct tree_opt_pass pass_dce_loop;
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extern struct tree_opt_pass pass_cd_dce;
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extern struct tree_opt_pass pass_merge_phi;
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extern struct tree_opt_pass pass_may_alias;
250
extern struct tree_opt_pass pass_split_crit_edges;
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extern struct tree_opt_pass pass_pre;
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extern struct tree_opt_pass pass_profile;
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extern struct tree_opt_pass pass_lower_complex_O0;
254
extern struct tree_opt_pass pass_lower_complex;
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extern struct tree_opt_pass pass_lower_vector;
256
extern struct tree_opt_pass pass_lower_vector_ssa;
257
extern struct tree_opt_pass pass_object_sizes;
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extern struct tree_opt_pass pass_fold_builtins;
259
extern struct tree_opt_pass pass_stdarg;
260
extern struct tree_opt_pass pass_early_warn_uninitialized;
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extern struct tree_opt_pass pass_late_warn_uninitialized;
262
extern struct tree_opt_pass pass_cse_reciprocals;
263
extern struct tree_opt_pass pass_warn_function_return;
264
extern struct tree_opt_pass pass_warn_function_noreturn;
265
extern struct tree_opt_pass pass_phiopt;
266
extern struct tree_opt_pass pass_forwprop;
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extern struct tree_opt_pass pass_redundant_phi;
268
extern struct tree_opt_pass pass_dse;
269
extern struct tree_opt_pass pass_nrv;
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extern struct tree_opt_pass pass_remove_useless_vars;
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extern struct tree_opt_pass pass_mark_used_blocks;
272
extern struct tree_opt_pass pass_rename_ssa_copies;
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extern struct tree_opt_pass pass_expand;
274
extern struct tree_opt_pass pass_rest_of_compilation;
275
extern struct tree_opt_pass pass_sink_code;
276
extern struct tree_opt_pass pass_fre;
277
extern struct tree_opt_pass pass_linear_transform;
278
extern struct tree_opt_pass pass_copy_prop;
279
extern struct tree_opt_pass pass_phi_only_copy_prop;
280
extern struct tree_opt_pass pass_store_ccp;
281
extern struct tree_opt_pass pass_store_copy_prop;
282
extern struct tree_opt_pass pass_vrp;
283
extern struct tree_opt_pass pass_create_structure_vars;
284
extern struct tree_opt_pass pass_uncprop;
285
extern struct tree_opt_pass pass_return_slot;
286
extern struct tree_opt_pass pass_reassoc;
287
extern struct tree_opt_pass pass_rebuild_cgraph_edges;
288
extern struct tree_opt_pass pass_eliminate_useless_stores;
289
 
290
/* IPA Passes */
291
extern struct tree_opt_pass pass_ipa_cp;
292
extern struct tree_opt_pass pass_ipa_inline;
293
extern struct tree_opt_pass pass_early_ipa_inline;
294
extern struct tree_opt_pass pass_ipa_reference;
295
extern struct tree_opt_pass pass_ipa_pure_const;
296
extern struct tree_opt_pass pass_ipa_type_escape;
297
extern struct tree_opt_pass pass_early_local_passes;
298
 
299
extern struct tree_opt_pass pass_all_optimizations;
300
extern struct tree_opt_pass pass_cleanup_cfg_post_optimizing;
301
extern struct tree_opt_pass pass_free_cfg_annotations;
302
extern struct tree_opt_pass pass_free_datastructures;
303
extern struct tree_opt_pass pass_init_datastructures;
304
extern struct tree_opt_pass pass_fixup_cfg;
305
 
306
extern struct tree_opt_pass pass_remove_unnecessary_notes;
307
extern struct tree_opt_pass pass_init_function;
308
extern struct tree_opt_pass pass_jump;
309
extern struct tree_opt_pass pass_insn_locators_initialize;
310
extern struct tree_opt_pass pass_rtl_eh;
311
extern struct tree_opt_pass pass_initial_value_sets;
312
extern struct tree_opt_pass pass_unshare_all_rtl;
313
extern struct tree_opt_pass pass_instantiate_virtual_regs;
314
extern struct tree_opt_pass pass_jump2;
315
extern struct tree_opt_pass pass_cse;
316
extern struct tree_opt_pass pass_gcse;
317
extern struct tree_opt_pass pass_loop_optimize;
318
extern struct tree_opt_pass pass_jump_bypass;
319
extern struct tree_opt_pass pass_cfg;
320
extern struct tree_opt_pass pass_profiling;
321
extern struct tree_opt_pass pass_rtl_ifcvt;
322
extern struct tree_opt_pass pass_tracer;
323
 
324
extern struct tree_opt_pass pass_loop2;
325
extern struct tree_opt_pass pass_rtl_loop_init;
326
extern struct tree_opt_pass pass_rtl_move_loop_invariants;
327
extern struct tree_opt_pass pass_rtl_unswitch;
328
extern struct tree_opt_pass pass_rtl_unroll_and_peel_loops;
329
extern struct tree_opt_pass pass_rtl_doloop;
330
extern struct tree_opt_pass pass_rtl_loop_done;
331
 
332
extern struct tree_opt_pass pass_web;
333
extern struct tree_opt_pass pass_cse2;
334
extern struct tree_opt_pass pass_life;
335
extern struct tree_opt_pass pass_combine;
336
extern struct tree_opt_pass pass_if_after_combine;
337
extern struct tree_opt_pass pass_partition_blocks;
338
extern struct tree_opt_pass pass_partition_blocks;
339
extern struct tree_opt_pass pass_regmove;
340
extern struct tree_opt_pass pass_split_all_insns;
341
extern struct tree_opt_pass pass_mode_switching;
342
extern struct tree_opt_pass pass_recompute_reg_usage;
343
extern struct tree_opt_pass pass_sms;
344
extern struct tree_opt_pass pass_sched;
345
extern struct tree_opt_pass pass_local_alloc;
346
extern struct tree_opt_pass pass_global_alloc;
347
extern struct tree_opt_pass pass_postreload;
348
extern struct tree_opt_pass pass_clean_state;
349
extern struct tree_opt_pass pass_branch_prob;
350
extern struct tree_opt_pass pass_value_profile_transformations;
351
extern struct tree_opt_pass pass_remove_death_notes;
352
extern struct tree_opt_pass pass_postreload_cse;
353
extern struct tree_opt_pass pass_gcse2;
354
extern struct tree_opt_pass pass_flow2;
355
extern struct tree_opt_pass pass_stack_adjustments;
356
extern struct tree_opt_pass pass_peephole2;
357
extern struct tree_opt_pass pass_if_after_reload;
358
extern struct tree_opt_pass pass_regrename;
359
extern struct tree_opt_pass pass_reorder_blocks;
360
extern struct tree_opt_pass pass_branch_target_load_optimize;
361
extern struct tree_opt_pass pass_leaf_regs;
362
extern struct tree_opt_pass pass_sched2;
363
extern struct tree_opt_pass pass_stack_regs;
364
extern struct tree_opt_pass pass_compute_alignments;
365
extern struct tree_opt_pass pass_duplicate_computed_gotos;
366
extern struct tree_opt_pass pass_variable_tracking;
367
extern struct tree_opt_pass pass_free_cfg;
368
extern struct tree_opt_pass pass_machine_reorg;
369
extern struct tree_opt_pass pass_purge_lineno_notes;
370
extern struct tree_opt_pass pass_cleanup_barriers;
371
extern struct tree_opt_pass pass_delay_slots;
372
extern struct tree_opt_pass pass_split_for_shorten_branches;
373
extern struct tree_opt_pass pass_split_before_regstack;
374
extern struct tree_opt_pass pass_convert_to_eh_region_ranges;
375
extern struct tree_opt_pass pass_shorten_branches;
376
extern struct tree_opt_pass pass_set_nothrow_function_flags;
377
extern struct tree_opt_pass pass_final;
378
 
379
/* The root of the compilation pass tree, once constructed.  */
380
extern struct tree_opt_pass *all_passes, *all_ipa_passes, *all_lowering_passes;
381
 
382
extern void execute_pass_list (struct tree_opt_pass *);
383
extern void execute_ipa_pass_list (struct tree_opt_pass *);
384
 
385
#endif /* GCC_TREE_PASS_H */

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