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0f9cdef4 1/* Description of pass structure
a945c346 2 Copyright (C) 1987-2024 Free Software Foundation, Inc.
0f9cdef4
DM
3
4This file is part of GCC.
5
6GCC is free software; you can redistribute it and/or modify it under
7the terms of the GNU General Public License as published by the Free
8Software Foundation; either version 3, or (at your option) any later
9version.
10
11GCC is distributed in the hope that it will be useful, but WITHOUT ANY
12WARRANTY; without even the implied warranty of MERCHANTABILITY or
13FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
14for more details.
15
16You should have received a copy of the GNU General Public License
17along with GCC; see the file COPYING3. If not see
18<http://www.gnu.org/licenses/>. */
19
38500484
TS
20/* Note that this file is processed by a simple parser:
21 'gen-pass-instances.awk', so carefully verify the generated
22 'pass-instances.def' if you deviate from the syntax otherwise used in
23 here. */
24
0f9cdef4
DM
25
26 /* All passes needed to lower the function into shape optimizers can
27 operate on. These passes are always run first on the function, but
28 backend might produce already lowered functions that are not processed
29 by these passes. */
30 INSERT_PASSES_AFTER (all_lowering_passes)
31 NEXT_PASS (pass_warn_unused_result);
32 NEXT_PASS (pass_diagnose_omp_blocks);
33 NEXT_PASS (pass_diagnose_tm_blocks);
e898ce79 34 NEXT_PASS (pass_omp_oacc_kernels_decompose);
0f9cdef4
DM
35 NEXT_PASS (pass_lower_omp);
36 NEXT_PASS (pass_lower_cf);
37 NEXT_PASS (pass_lower_tm);
38 NEXT_PASS (pass_refactor_eh);
39 NEXT_PASS (pass_lower_eh);
49789fd0 40 NEXT_PASS (pass_coroutine_lower_builtins);
0f9cdef4
DM
41 NEXT_PASS (pass_build_cfg);
42 NEXT_PASS (pass_warn_function_return);
49789fd0 43 NEXT_PASS (pass_coroutine_early_expand_ifns);
0f9cdef4 44 NEXT_PASS (pass_expand_omp);
6ba856d4 45 NEXT_PASS (pass_build_cgraph_edges);
17e7ab87 46 TERMINATE_PASS_LIST (all_lowering_passes)
0f9cdef4
DM
47
48 /* Interprocedural optimization passes. */
49 INSERT_PASSES_AFTER (all_small_ipa_passes)
50 NEXT_PASS (pass_ipa_free_lang_data);
51 NEXT_PASS (pass_ipa_function_and_variable_visibility);
f0a90c7d 52 NEXT_PASS (pass_ipa_strub_mode);
d5e254e1
IE
53 NEXT_PASS (pass_build_ssa_passes);
54 PUSH_INSERT_PASSES_WITHIN (pass_build_ssa_passes)
0f9cdef4 55 NEXT_PASS (pass_fixup_cfg);
0f9cdef4 56 NEXT_PASS (pass_build_ssa);
e68f5c90 57 NEXT_PASS (pass_walloca, /*strict_mode_p=*/true);
2254b323 58 NEXT_PASS (pass_warn_printf);
bf14eba2 59 NEXT_PASS (pass_warn_nonnull_compare);
0f9cdef4 60 NEXT_PASS (pass_early_warn_uninitialized);
5a668ec0 61 NEXT_PASS (pass_warn_access, /*early=*/true);
31de5e4d 62 NEXT_PASS (pass_ubsan);
38147a2a 63 NEXT_PASS (pass_nothrow);
8a87dced 64 NEXT_PASS (pass_rebuild_cgraph_edges);
d5e254e1
IE
65 POP_INSERT_PASSES ()
66
d5e254e1
IE
67 NEXT_PASS (pass_local_optimization_passes);
68 PUSH_INSERT_PASSES_WITHIN (pass_local_optimization_passes)
69 NEXT_PASS (pass_fixup_cfg);
0f9cdef4 70 NEXT_PASS (pass_rebuild_cgraph_edges);
d2db2e6b 71 NEXT_PASS (pass_local_fn_summary);
0f9cdef4 72 NEXT_PASS (pass_early_inline);
30ba058f 73 NEXT_PASS (pass_warn_recursion);
0f9cdef4
DM
74 NEXT_PASS (pass_all_early_optimizations);
75 PUSH_INSERT_PASSES_WITHIN (pass_all_early_optimizations)
76 NEXT_PASS (pass_remove_cgraph_callee_edges);
dddb6ffd 77 NEXT_PASS (pass_early_object_sizes);
c06883ac
TV
78 /* Don't record nonzero bits before IPA to avoid
79 using too much memory. */
80 NEXT_PASS (pass_ccp, false /* nonzero_p */);
0f9cdef4
DM
81 /* After CCP we rewrite no longer addressed locals into SSA
82 form if possible. */
83 NEXT_PASS (pass_forwprop);
bc5baac5 84 NEXT_PASS (pass_early_thread_jumps, /*first=*/true);
a9e4c82f 85 NEXT_PASS (pass_sra_early);
0f9cdef4
DM
86 /* pass_build_ealias is a dummy pass that ensures that we
87 execute TODO_rebuild_alias at this point. */
88 NEXT_PASS (pass_build_ealias);
7b34cacc
JH
89 /* Do phiprop before FRE so we optimize std::min and std::max well. */
90 NEXT_PASS (pass_phiprop);
744fd446 91 NEXT_PASS (pass_fre, true /* may_iterate */);
973625a0 92 NEXT_PASS (pass_early_vrp);
0f9cdef4 93 NEXT_PASS (pass_merge_phi);
5a33401e 94 NEXT_PASS (pass_dse);
b673e754 95 NEXT_PASS (pass_cd_dce, false /* update_address_taken_p */);
1cab645d 96 NEXT_PASS (pass_phiopt, true /* early_p */);
0f9cdef4 97 NEXT_PASS (pass_tail_recursion);
03eb0929 98 NEXT_PASS (pass_if_to_switch);
0f9cdef4 99 NEXT_PASS (pass_convert_switch);
d5e254e1 100 NEXT_PASS (pass_cleanup_eh);
cd794c39 101 NEXT_PASS (pass_sccopy);
d5e254e1
IE
102 NEXT_PASS (pass_profile);
103 NEXT_PASS (pass_local_pure_const);
494bdadf 104 NEXT_PASS (pass_modref);
0f9cdef4
DM
105 /* Split functions creates parts that are not run through
106 early optimizations again. It is thus good idea to do this
d5e254e1
IE
107 late. */
108 NEXT_PASS (pass_split_functions);
7a096965 109 NEXT_PASS (pass_strip_predict_hints, true /* early_p */);
0f9cdef4
DM
110 POP_INSERT_PASSES ()
111 NEXT_PASS (pass_release_ssa_names);
112 NEXT_PASS (pass_rebuild_cgraph_edges);
d2db2e6b 113 NEXT_PASS (pass_local_fn_summary);
0f9cdef4 114 POP_INSERT_PASSES ()
597a8ab9 115
12485662 116 NEXT_PASS (pass_ipa_remove_symbols);
f0a90c7d 117 NEXT_PASS (pass_ipa_strub);
597a8ab9
TV
118 NEXT_PASS (pass_ipa_oacc);
119 PUSH_INSERT_PASSES_WITHIN (pass_ipa_oacc)
120 NEXT_PASS (pass_ipa_pta);
121 /* Pass group that runs when the function is an offloaded function
122 containing oacc kernels loops. */
123 NEXT_PASS (pass_ipa_oacc_kernels);
124 PUSH_INSERT_PASSES_WITHIN (pass_ipa_oacc_kernels)
125 NEXT_PASS (pass_oacc_kernels);
126 PUSH_INSERT_PASSES_WITHIN (pass_oacc_kernels)
127 NEXT_PASS (pass_ch);
744fd446 128 NEXT_PASS (pass_fre, true /* may_iterate */);
597a8ab9
TV
129 /* We use pass_lim to rewrite in-memory iteration and reduction
130 variable accesses in loops into local variables accesses. */
131 NEXT_PASS (pass_lim);
132 NEXT_PASS (pass_dominator, false /* may_peel_loop_headers_p */);
133 NEXT_PASS (pass_dce);
a98d4647 134 NEXT_PASS (pass_parallelize_loops, true /* oacc_kernels_p */);
597a8ab9
TV
135 NEXT_PASS (pass_expand_omp_ssa);
136 NEXT_PASS (pass_rebuild_cgraph_edges);
137 POP_INSERT_PASSES ()
138 POP_INSERT_PASSES ()
139 POP_INSERT_PASSES ()
140
46a2ab58 141 NEXT_PASS (pass_target_clone);
be3c16c4 142 NEXT_PASS (pass_ipa_auto_profile);
0f9cdef4
DM
143 NEXT_PASS (pass_ipa_tree_profile);
144 PUSH_INSERT_PASSES_WITHIN (pass_ipa_tree_profile)
145 NEXT_PASS (pass_feedback_split_functions);
146 POP_INSERT_PASSES ()
442db276 147 NEXT_PASS (pass_ipa_free_fn_summary, true /* small_p */);
0f9cdef4
DM
148 NEXT_PASS (pass_ipa_increase_alignment);
149 NEXT_PASS (pass_ipa_tm);
150 NEXT_PASS (pass_ipa_lower_emutls);
17e7ab87 151 TERMINATE_PASS_LIST (all_small_ipa_passes)
0f9cdef4
DM
152
153 INSERT_PASSES_AFTER (all_regular_ipa_passes)
757bf1df 154 NEXT_PASS (pass_analyzer);
3fb68f2e 155 NEXT_PASS (pass_ipa_odr);
0f9cdef4
DM
156 NEXT_PASS (pass_ipa_whole_program_visibility);
157 NEXT_PASS (pass_ipa_profile);
b84d4347 158 NEXT_PASS (pass_ipa_icf);
bbc9396b 159 NEXT_PASS (pass_ipa_devirt);
db0fa0b3 160 NEXT_PASS (pass_ipa_cdtor_merge);
0f9cdef4 161 NEXT_PASS (pass_ipa_cp);
ff6686d2 162 NEXT_PASS (pass_ipa_sra);
d2db2e6b 163 NEXT_PASS (pass_ipa_fn_summary);
0f9cdef4
DM
164 NEXT_PASS (pass_ipa_inline);
165 NEXT_PASS (pass_ipa_pure_const);
d119f34c 166 NEXT_PASS (pass_ipa_modref);
442db276 167 NEXT_PASS (pass_ipa_free_fn_summary, false /* small_p */);
0f9cdef4 168 NEXT_PASS (pass_ipa_reference);
eb6a09a7
JH
169 /* This pass needs to be scheduled after any IP code duplication. */
170 NEXT_PASS (pass_ipa_single_use);
a04d9035
JH
171 /* Comdat privatization come last, as direct references to comdat local
172 symbols are not allowed outside of the comdat group. Privatizing early
173 would result in missed optimizations due to this restriction. */
174 NEXT_PASS (pass_ipa_comdats);
17e7ab87 175 TERMINATE_PASS_LIST (all_regular_ipa_passes)
0f9cdef4 176
0f9cdef4
DM
177 /* Simple IPA passes executed after the regular passes. In WHOPR mode the
178 passes are executed after partitioning and thus see just parts of the
179 compiled unit. */
180 INSERT_PASSES_AFTER (all_late_ipa_passes)
181 NEXT_PASS (pass_ipa_pta);
0136f8f0 182 NEXT_PASS (pass_omp_simd_clone);
17e7ab87 183 TERMINATE_PASS_LIST (all_late_ipa_passes)
0f9cdef4
DM
184
185 /* These passes are run after IPA passes on every function that is being
186 output to the assembler file. */
187 INSERT_PASSES_AFTER (all_passes)
9c39fca1 188 NEXT_PASS (pass_fixup_cfg);
0f9cdef4 189 NEXT_PASS (pass_lower_eh_dispatch);
0829ab79 190 NEXT_PASS (pass_oacc_loop_designation);
e2a58ed6 191 NEXT_PASS (pass_omp_oacc_neuter_broadcast);
94829f87 192 NEXT_PASS (pass_oacc_device_lower);
9669b00b 193 NEXT_PASS (pass_omp_device_lower);
4a38b02b 194 NEXT_PASS (pass_omp_target_link);
dfa4fcdb 195 NEXT_PASS (pass_adjust_alignment);
551935d1 196 NEXT_PASS (pass_harden_control_flow_redundancy);
0f9cdef4
DM
197 NEXT_PASS (pass_all_optimizations);
198 PUSH_INSERT_PASSES_WITHIN (pass_all_optimizations)
199 NEXT_PASS (pass_remove_cgraph_callee_edges);
200 /* Initial scalar cleanups before alias computation.
201 They ensure memory accesses are not indirect wherever possible. */
7a096965 202 NEXT_PASS (pass_strip_predict_hints, false /* early_p */);
c06883ac 203 NEXT_PASS (pass_ccp, true /* nonzero_p */);
0f9cdef4
DM
204 /* After CCP we rewrite no longer addressed locals into SSA
205 form if possible. */
dddb6ffd
JJ
206 NEXT_PASS (pass_object_sizes);
207 NEXT_PASS (pass_post_ipa_warn);
9d6a0f38
MS
208 /* Must run before loop unrolling. */
209 NEXT_PASS (pass_warn_access, /*early=*/true);
aa6741ef
JH
210 /* Profile count may overflow as a result of inlinining very large
211 loop nests. This pass should run before any late pass that makes
212 use of profile. */
213 NEXT_PASS (pass_rebuild_frequencies);
4ee5c752 214 NEXT_PASS (pass_complete_unrolli);
6a75d560 215 NEXT_PASS (pass_backprop);
0f9cdef4
DM
216 NEXT_PASS (pass_phiprop);
217 NEXT_PASS (pass_forwprop);
218 /* pass_build_alias is a dummy pass that ensures that we
219 execute TODO_rebuild_alias at this point. */
220 NEXT_PASS (pass_build_alias);
221 NEXT_PASS (pass_return_slot);
744fd446 222 NEXT_PASS (pass_fre, true /* may_iterate */);
0f9cdef4 223 NEXT_PASS (pass_merge_phi);
bc5baac5 224 NEXT_PASS (pass_thread_jumps_full, /*first=*/true);
7eb5ce7f 225 NEXT_PASS (pass_vrp, false /* final_p*/);
74ee12ff 226 NEXT_PASS (pass_array_bounds);
d8e1f1d2 227 NEXT_PASS (pass_dse);
0f9cdef4 228 NEXT_PASS (pass_dce);
8d4c374c
RB
229 /* pass_stdarg is always run and at this point we execute
230 TODO_remove_unused_locals to prune CLOBBERs of dead
231 variables which are otherwise a churn on alias walkings. */
32966af8 232 NEXT_PASS (pass_stdarg);
0f9cdef4
DM
233 NEXT_PASS (pass_call_cdce);
234 NEXT_PASS (pass_cselim);
9e4f27ef 235 NEXT_PASS (pass_copy_prop);
0f9cdef4 236 NEXT_PASS (pass_tree_ifcombine);
465770e4 237 NEXT_PASS (pass_merge_phi);
1cab645d 238 NEXT_PASS (pass_phiopt, false /* early_p */);
0f9cdef4
DM
239 NEXT_PASS (pass_tail_recursion);
240 NEXT_PASS (pass_ch);
0f9cdef4 241 NEXT_PASS (pass_lower_complex);
a9d6c7fb 242 NEXT_PASS (pass_lower_bitint);
0f9cdef4 243 NEXT_PASS (pass_sra);
0f9cdef4
DM
244 /* The dom pass will also resolve all __builtin_constant_p calls
245 that are still there to 0. This has to be done after some
246 propagations have already run, but before some more dead code
247 is removed, and this place fits nicely. Remember this when
248 trying to move or duplicate pass_dominator somewhere earlier. */
bc5baac5 249 NEXT_PASS (pass_thread_jumps, /*first=*/true);
5ce8d99a 250 NEXT_PASS (pass_dominator, true /* may_peel_loop_headers_p */);
33579b59
JL
251 /* Threading can leave many const/copy propagations in the IL.
252 Clean them up. Failure to do so well can lead to false
253 positives from warnings for erroneous code. */
254 NEXT_PASS (pass_copy_prop);
255 /* Identify paths that should never be executed in a conforming
256 program and isolate those paths. */
8fdc414d 257 NEXT_PASS (pass_isolate_erroneous_paths);
99c106e6 258 NEXT_PASS (pass_reassoc, true /* early_p */);
0f9cdef4
DM
259 NEXT_PASS (pass_dce);
260 NEXT_PASS (pass_forwprop);
1cab645d 261 NEXT_PASS (pass_phiopt, false /* early_p */);
c06883ac 262 NEXT_PASS (pass_ccp, true /* nonzero_p */);
0f9cdef4
DM
263 /* After CCP we rewrite no longer addressed locals into SSA
264 form if possible. */
36852a18 265 NEXT_PASS (pass_expand_pow);
0f9cdef4 266 NEXT_PASS (pass_optimize_bswap);
ca87c493 267 NEXT_PASS (pass_laddress);
43c0068e 268 NEXT_PASS (pass_lim);
adc577c5 269 NEXT_PASS (pass_walloca, false);
0f9cdef4 270 NEXT_PASS (pass_pre);
3a7ba8fd 271 NEXT_PASS (pass_sink_code, false /* unsplit edges */);
95e7bbb8 272 NEXT_PASS (pass_sancov);
0f9cdef4
DM
273 NEXT_PASS (pass_asan);
274 NEXT_PASS (pass_tsan);
4bdf739f 275 NEXT_PASS (pass_dse, true /* use DR analysis */);
43c0068e 276 NEXT_PASS (pass_dce);
e5d8bd8c 277 /* Pass group that runs when 1) enabled, 2) there are loops
7d39012c
RB
278 in the function. Make sure to run pass_fix_loops before
279 to discover/remove loops before running the gate function
280 of pass_tree_loop. */
281 NEXT_PASS (pass_fix_loops);
0f9cdef4
DM
282 NEXT_PASS (pass_tree_loop);
283 PUSH_INSERT_PASSES_WITHIN (pass_tree_loop)
8964432a
RB
284 /* Before loop_init we rewrite no longer addressed locals into SSA
285 form if possible. */
0f9cdef4 286 NEXT_PASS (pass_tree_loop_init);
0f9cdef4 287 NEXT_PASS (pass_tree_unswitch);
28df8730 288 NEXT_PASS (pass_loop_split);
3d48c11a 289 NEXT_PASS (pass_scev_cprop);
13e08dc9 290 NEXT_PASS (pass_loop_versioning);
1cc521f1 291 NEXT_PASS (pass_loop_jam);
59ec925b
RB
292 /* All unswitching, final value replacement and splitting can expose
293 empty loops. Remove them now. */
b673e754 294 NEXT_PASS (pass_cd_dce, false /* update_address_taken_p */);
09a939a0 295 NEXT_PASS (pass_iv_canon);
0f9cdef4 296 NEXT_PASS (pass_loop_distribution);
fbdec14e 297 NEXT_PASS (pass_linterchange);
0f9cdef4
DM
298 NEXT_PASS (pass_copy_prop);
299 NEXT_PASS (pass_graphite);
300 PUSH_INSERT_PASSES_WITHIN (pass_graphite)
301 NEXT_PASS (pass_graphite_transforms);
302 NEXT_PASS (pass_lim);
303 NEXT_PASS (pass_copy_prop);
30866dc9 304 NEXT_PASS (pass_dce);
0f9cdef4 305 POP_INSERT_PASSES ()
61d9c527 306 NEXT_PASS (pass_parallelize_loops, false /* oacc_kernels_p */);
2d73a9d2 307 NEXT_PASS (pass_expand_omp_ssa);
4f9a2b4e 308 NEXT_PASS (pass_ch_vect);
0f9cdef4 309 NEXT_PASS (pass_if_conversion);
5ce9450f
JJ
310 /* pass_vectorize must immediately follow pass_if_conversion.
311 Please do not add any other passes in between. */
0f9cdef4 312 NEXT_PASS (pass_vectorize);
f5e18dd9 313 PUSH_INSERT_PASSES_WITHIN (pass_vectorize)
30866dc9 314 NEXT_PASS (pass_dce);
f5e18dd9
KL
315 POP_INSERT_PASSES ()
316 NEXT_PASS (pass_predcom);
0f9cdef4 317 NEXT_PASS (pass_complete_unroll);
f5e18dd9
KL
318 NEXT_PASS (pass_pre_slp_scalar_cleanup);
319 PUSH_INSERT_PASSES_WITHIN (pass_pre_slp_scalar_cleanup)
320 NEXT_PASS (pass_fre, false /* may_iterate */);
321 NEXT_PASS (pass_dse);
322 POP_INSERT_PASSES ()
0f9cdef4
DM
323 NEXT_PASS (pass_slp_vectorize);
324 NEXT_PASS (pass_loop_prefetch);
e5d8bd8c
RB
325 /* Run IVOPTs after the last pass that uses data-reference analysis
326 as that doesn't handle TARGET_MEM_REFs. */
0f9cdef4
DM
327 NEXT_PASS (pass_iv_optimize);
328 NEXT_PASS (pass_lim);
329 NEXT_PASS (pass_tree_loop_done);
330 POP_INSERT_PASSES ()
e5d8bd8c
RB
331 /* Pass group that runs when pass_tree_loop is disabled or there
332 are no loops in the function. */
333 NEXT_PASS (pass_tree_no_loop);
334 PUSH_INSERT_PASSES_WITHIN (pass_tree_no_loop)
335 NEXT_PASS (pass_slp_vectorize);
336 POP_INSERT_PASSES ()
8c8b9f32 337 NEXT_PASS (pass_simduid_cleanup);
0f9cdef4 338 NEXT_PASS (pass_lower_vector_ssa);
eb63c01f 339 NEXT_PASS (pass_lower_switch);
78d5e125 340 NEXT_PASS (pass_cse_sincos);
0f9cdef4 341 NEXT_PASS (pass_cse_reciprocals);
99c106e6 342 NEXT_PASS (pass_reassoc, false /* early_p */);
0f9cdef4 343 NEXT_PASS (pass_strength_reduction);
45fbe8e9 344 NEXT_PASS (pass_split_paths);
8cce4dbf 345 NEXT_PASS (pass_tracer);
744fd446 346 NEXT_PASS (pass_fre, false /* may_iterate */);
bf05a3bb
RB
347 /* After late FRE we rewrite no longer addressed locals into SSA
348 form if possible. */
bc5baac5 349 NEXT_PASS (pass_thread_jumps, /*first=*/false);
5ce8d99a 350 NEXT_PASS (pass_dominator, false /* may_peel_loop_headers_p */);
24314386 351 NEXT_PASS (pass_strlen);
bc5baac5 352 NEXT_PASS (pass_thread_jumps_full, /*first=*/false);
7eb5ce7f 353 NEXT_PASS (pass_vrp, true /* final_p */);
d2161caf 354 /* Run CCP to compute alignment and nonzero bits. */
da9e6e63 355 NEXT_PASS (pass_ccp, true /* nonzero_p */);
7fb1d021 356 NEXT_PASS (pass_warn_restrict);
154c9188 357 NEXT_PASS (pass_dse);
be2c74fd
RB
358 NEXT_PASS (pass_dce, true /* update_address_taken_p */);
359 /* After late DCE we rewrite no longer addressed locals into SSA
b673e754 360 form if possible. */
154c9188 361 NEXT_PASS (pass_forwprop);
3a7ba8fd 362 NEXT_PASS (pass_sink_code, true /* unsplit edges */);
1cab645d 363 NEXT_PASS (pass_phiopt, false /* early_p */);
154c9188
RB
364 NEXT_PASS (pass_fold_builtins);
365 NEXT_PASS (pass_optimize_widening_mul);
f663d9ad 366 NEXT_PASS (pass_store_merging);
24a179f8 367 /* If DCE is not run before checking for uninitialized uses,
0f9cdef4
DM
368 we may get false warnings (e.g., testsuite/gcc.dg/uninit-5.c).
369 However, this also causes us to misdiagnose cases that should be
24a179f8 370 real warnings (e.g., testsuite/gcc.dg/pr18501.c). */
be2c74fd 371 NEXT_PASS (pass_cd_dce, false /* update_address_taken_p */);
cd794c39 372 NEXT_PASS (pass_sccopy);
be2c74fd 373 NEXT_PASS (pass_tail_calls);
5c2961cf
RB
374 /* Split critical edges before late uninit warning to reduce the
375 number of false positives from it. */
376 NEXT_PASS (pass_split_crit_edges);
0f9cdef4 377 NEXT_PASS (pass_late_warn_uninitialized);
0f9cdef4 378 NEXT_PASS (pass_local_pure_const);
d119f34c 379 NEXT_PASS (pass_modref);
666d7804
JH
380 /* uncprop replaces constants by SSA names. This makes analysis harder
381 and thus it should be run last. */
382 NEXT_PASS (pass_uncprop);
0f9cdef4
DM
383 POP_INSERT_PASSES ()
384 NEXT_PASS (pass_all_optimizations_g);
385 PUSH_INSERT_PASSES_WITHIN (pass_all_optimizations_g)
e89b2a27
RB
386 /* The idea is that with -Og we do not perform any IPA optimization
387 so post-IPA work should be restricted to semantically required
388 passes and all optimization work is done early. */
0f9cdef4 389 NEXT_PASS (pass_remove_cgraph_callee_edges);
7a096965 390 NEXT_PASS (pass_strip_predict_hints, false /* early_p */);
0f9cdef4
DM
391 /* Lower remaining pieces of GIMPLE. */
392 NEXT_PASS (pass_lower_complex);
a9d6c7fb 393 NEXT_PASS (pass_lower_bitint);
0f9cdef4 394 NEXT_PASS (pass_lower_vector_ssa);
eb63c01f 395 NEXT_PASS (pass_lower_switch);
0f9cdef4 396 /* Perform simple scalar cleanup which is constant/copy propagation. */
c06883ac 397 NEXT_PASS (pass_ccp, true /* nonzero_p */);
0dba7960 398 NEXT_PASS (pass_post_ipa_warn);
0f9cdef4
DM
399 NEXT_PASS (pass_object_sizes);
400 /* Fold remaining builtins. */
401 NEXT_PASS (pass_fold_builtins);
22fca489 402 NEXT_PASS (pass_strlen);
0f9cdef4
DM
403 /* Copy propagation also copy-propagates constants, this is necessary
404 to forward object-size and builtin folding results properly. */
405 NEXT_PASS (pass_copy_prop);
406 NEXT_PASS (pass_dce);
aa6741ef
JH
407 /* Profile count may overflow as a result of inlinining very large
408 loop nests. This pass should run before any late pass that makes
409 use of profile. */
410 NEXT_PASS (pass_rebuild_frequencies);
95e7bbb8 411 NEXT_PASS (pass_sancov);
0f9cdef4
DM
412 NEXT_PASS (pass_asan);
413 NEXT_PASS (pass_tsan);
0f9cdef4
DM
414 /* ??? We do want some kind of loop invariant motion, but we possibly
415 need to adjust LIM to be more friendly towards preserving accurate
416 debug information here. */
5c2961cf
RB
417 /* Split critical edges before late uninit warning to reduce the
418 number of false positives from it. */
419 NEXT_PASS (pass_split_crit_edges);
0f9cdef4 420 NEXT_PASS (pass_late_warn_uninitialized);
666d7804
JH
421 /* uncprop replaces constants by SSA names. This makes analysis harder
422 and thus it should be run last. */
423 NEXT_PASS (pass_uncprop);
0f9cdef4 424 POP_INSERT_PASSES ()
4dda30e9 425 NEXT_PASS (pass_assumptions);
0f9cdef4
DM
426 NEXT_PASS (pass_tm_init);
427 PUSH_INSERT_PASSES_WITHIN (pass_tm_init)
428 NEXT_PASS (pass_tm_mark);
429 NEXT_PASS (pass_tm_memopt);
430 NEXT_PASS (pass_tm_edges);
431 POP_INSERT_PASSES ()
d9a6bd32 432 NEXT_PASS (pass_simduid_cleanup);
2077db1b 433 NEXT_PASS (pass_vtable_verify);
f8e89441 434 NEXT_PASS (pass_lower_vaarg);
0f9cdef4
DM
435 NEXT_PASS (pass_lower_vector);
436 NEXT_PASS (pass_lower_complex_O0);
a9d6c7fb 437 NEXT_PASS (pass_lower_bitint_O0);
95e7bbb8 438 NEXT_PASS (pass_sancov_O0);
b4c9a058 439 NEXT_PASS (pass_lower_switch_O0);
0f9cdef4
DM
440 NEXT_PASS (pass_asan_O0);
441 NEXT_PASS (pass_tsan_O0);
b9a55b13 442 NEXT_PASS (pass_sanopt);
0f9cdef4 443 NEXT_PASS (pass_cleanup_eh);
b738a63e 444 NEXT_PASS (pass_musttail);
0f9cdef4
DM
445 NEXT_PASS (pass_lower_resx);
446 NEXT_PASS (pass_nrv);
502d63b6 447 NEXT_PASS (pass_gimple_isel);
95bb87b2
AO
448 NEXT_PASS (pass_harden_conditional_branches);
449 NEXT_PASS (pass_harden_compares);
5a668ec0 450 NEXT_PASS (pass_warn_access, /*early=*/false);
0f9cdef4
DM
451 NEXT_PASS (pass_cleanup_cfg_post_optimizing);
452 NEXT_PASS (pass_warn_function_noreturn);
453
454 NEXT_PASS (pass_expand);
455
456 NEXT_PASS (pass_rest_of_compilation);
457 PUSH_INSERT_PASSES_WITHIN (pass_rest_of_compilation)
458 NEXT_PASS (pass_instantiate_virtual_regs);
459 NEXT_PASS (pass_into_cfg_layout_mode);
460 NEXT_PASS (pass_jump);
461 NEXT_PASS (pass_lower_subreg);
462 NEXT_PASS (pass_df_initialize_opt);
463 NEXT_PASS (pass_cse);
464 NEXT_PASS (pass_rtl_fwprop);
465 NEXT_PASS (pass_rtl_cprop);
466 NEXT_PASS (pass_rtl_pre);
467 NEXT_PASS (pass_rtl_hoist);
468 NEXT_PASS (pass_rtl_cprop);
469 NEXT_PASS (pass_rtl_store_motion);
470 NEXT_PASS (pass_cse_after_global_opts);
471 NEXT_PASS (pass_rtl_ifcvt);
472 NEXT_PASS (pass_reginfo_init);
473 /* Perform loop optimizations. It might be better to do them a bit
474 sooner, but we want the profile feedback to work more
475 efficiently. */
476 NEXT_PASS (pass_loop2);
477 PUSH_INSERT_PASSES_WITHIN (pass_loop2)
478 NEXT_PASS (pass_rtl_loop_init);
479 NEXT_PASS (pass_rtl_move_loop_invariants);
f8934be7 480 NEXT_PASS (pass_rtl_unroll_loops);
0f9cdef4
DM
481 NEXT_PASS (pass_rtl_doloop);
482 NEXT_PASS (pass_rtl_loop_done);
0f9cdef4 483 POP_INSERT_PASSES ()
b18081df 484 NEXT_PASS (pass_lower_subreg2);
0f9cdef4
DM
485 NEXT_PASS (pass_web);
486 NEXT_PASS (pass_rtl_cprop);
487 NEXT_PASS (pass_cse2);
488 NEXT_PASS (pass_rtl_dse1);
489 NEXT_PASS (pass_rtl_fwprop_addr);
490 NEXT_PASS (pass_inc_dec);
491 NEXT_PASS (pass_initialize_regs);
492 NEXT_PASS (pass_ud_rtl_dce);
98914f9e 493 NEXT_PASS (pass_ext_dce);
0f9cdef4 494 NEXT_PASS (pass_combine);
792f97b4 495 NEXT_PASS (pass_late_combine);
0f9cdef4 496 NEXT_PASS (pass_if_after_combine);
216779db 497 NEXT_PASS (pass_jump_after_combine);
0f9cdef4 498 NEXT_PASS (pass_partition_blocks);
0f9cdef4
DM
499 NEXT_PASS (pass_outof_cfg_layout_mode);
500 NEXT_PASS (pass_split_all_insns);
b18081df 501 NEXT_PASS (pass_lower_subreg3);
0f9cdef4
DM
502 NEXT_PASS (pass_df_initialize_no_opt);
503 NEXT_PASS (pass_stack_ptr_mod);
504 NEXT_PASS (pass_mode_switching);
505 NEXT_PASS (pass_match_asm_constraints);
506 NEXT_PASS (pass_sms);
f20f2613 507 NEXT_PASS (pass_live_range_shrinkage);
0f9cdef4 508 NEXT_PASS (pass_sched);
5cce8171 509 NEXT_PASS (pass_early_remat);
0f9cdef4
DM
510 NEXT_PASS (pass_ira);
511 NEXT_PASS (pass_reload);
438381ef
TS
512 /* In the following, some passes are tied to 'pass_postreload' and others
513 to 'pass_late_compilation'. The difference is that the latter also
514 run for 'targetm.no_register_allocation' targets. */
0f9cdef4
DM
515 NEXT_PASS (pass_postreload);
516 PUSH_INSERT_PASSES_WITHIN (pass_postreload)
517 NEXT_PASS (pass_postreload_cse);
792f97b4 518 NEXT_PASS (pass_late_combine);
0f9cdef4
DM
519 NEXT_PASS (pass_gcse2);
520 NEXT_PASS (pass_split_after_reload);
521 NEXT_PASS (pass_ree);
522 NEXT_PASS (pass_compare_elim_after_reload);
0f9cdef4
DM
523 NEXT_PASS (pass_thread_prologue_and_epilogue);
524 NEXT_PASS (pass_rtl_dse2);
525 NEXT_PASS (pass_stack_adjustments);
526 NEXT_PASS (pass_jump2);
fc56f9d2 527 NEXT_PASS (pass_duplicate_computed_gotos);
b16abbcb 528 NEXT_PASS (pass_sched_fusion);
fc56f9d2 529 NEXT_PASS (pass_peephole2);
0f9cdef4
DM
530 NEXT_PASS (pass_if_after_reload);
531 NEXT_PASS (pass_regrename);
04c9cf5c 532 NEXT_PASS (pass_fold_mem_offsets);
0f9cdef4
DM
533 NEXT_PASS (pass_cprop_hardreg);
534 NEXT_PASS (pass_fast_rtl_dce);
535 NEXT_PASS (pass_reorder_blocks);
0f9cdef4
DM
536 NEXT_PASS (pass_leaf_regs);
537 NEXT_PASS (pass_split_before_sched2);
538 NEXT_PASS (pass_sched2);
539 NEXT_PASS (pass_stack_regs);
540 PUSH_INSERT_PASSES_WITHIN (pass_stack_regs)
541 NEXT_PASS (pass_split_before_regstack);
542 NEXT_PASS (pass_stack_regs_run);
543 POP_INSERT_PASSES ()
433e4164 544 POP_INSERT_PASSES ()
e9d2ae6b
RS
545 NEXT_PASS (pass_late_thread_prologue_and_epilogue);
546 /* No target-independent code motion is allowed beyond this point,
547 excepting the legacy delayed-branch pass. */
433e4164
BS
548 NEXT_PASS (pass_late_compilation);
549 PUSH_INSERT_PASSES_WITHIN (pass_late_compilation)
d10f3e90 550 NEXT_PASS (pass_zero_call_used_regs);
0f9cdef4 551 NEXT_PASS (pass_compute_alignments);
0f9cdef4
DM
552 NEXT_PASS (pass_variable_tracking);
553 NEXT_PASS (pass_free_cfg);
554 NEXT_PASS (pass_machine_reorg);
555 NEXT_PASS (pass_cleanup_barriers);
556 NEXT_PASS (pass_delay_slots);
557 NEXT_PASS (pass_split_for_shorten_branches);
558 NEXT_PASS (pass_convert_to_eh_region_ranges);
559 NEXT_PASS (pass_shorten_branches);
560 NEXT_PASS (pass_set_nothrow_function_flags);
561 NEXT_PASS (pass_dwarf2_frame);
562 NEXT_PASS (pass_final);
563 POP_INSERT_PASSES ()
564 NEXT_PASS (pass_df_finish);
565 POP_INSERT_PASSES ()
566 NEXT_PASS (pass_clean_state);
17e7ab87 567 TERMINATE_PASS_LIST (all_passes)