Mercurial > hg > CbC > CbC_gcc
annotate gcc/tree-ssa-loop.c @ 59:5b5b9ea5b220
fix
| author | Shinji KONO <kono@ie.u-ryukyu.ac.jp> |
|---|---|
| date | Mon, 15 Feb 2010 17:22:24 +0900 |
| parents | 77e2b8dfacca |
| children | b7f97abdc517 |
| rev | line source |
|---|---|
| 0 | 1 /* Loop optimizations over tree-ssa. |
| 2 Copyright (C) 2003, 2005, 2006, 2007, 2008 Free Software Foundation, Inc. | |
|
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3 |
| 0 | 4 This file is part of GCC. |
|
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5 |
| 0 | 6 GCC is free software; you can redistribute it and/or modify it |
| 7 under the terms of the GNU General Public License as published by the | |
| 8 Free Software Foundation; either version 3, or (at your option) any | |
| 9 later version. | |
|
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10 |
| 0 | 11 GCC is distributed in the hope that it will be useful, but WITHOUT |
| 12 ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or | |
| 13 FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License | |
| 14 for more details. | |
|
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15 |
| 0 | 16 You should have received a copy of the GNU General Public License |
| 17 along with GCC; see the file COPYING3. If not see | |
| 18 <http://www.gnu.org/licenses/>. */ | |
| 19 | |
| 20 #include "config.h" | |
| 21 #include "system.h" | |
| 22 #include "coretypes.h" | |
| 23 #include "tm.h" | |
| 24 #include "tree.h" | |
| 25 #include "rtl.h" | |
| 26 #include "tm_p.h" | |
| 27 #include "hard-reg-set.h" | |
| 28 #include "basic-block.h" | |
| 29 #include "output.h" | |
| 30 #include "diagnostic.h" | |
| 31 #include "tree-flow.h" | |
| 32 #include "tree-dump.h" | |
| 33 #include "tree-pass.h" | |
| 34 #include "timevar.h" | |
| 35 #include "cfgloop.h" | |
| 36 #include "flags.h" | |
| 37 #include "tree-inline.h" | |
| 38 #include "tree-scalar-evolution.h" | |
|
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39 #include "toplev.h" |
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40 #include "tree-vectorizer.h" |
| 0 | 41 |
| 42 /* The loop superpass. */ | |
| 43 | |
| 44 static bool | |
| 45 gate_tree_loop (void) | |
| 46 { | |
| 47 return flag_tree_loop_optimize != 0; | |
| 48 } | |
| 49 | |
|
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50 struct gimple_opt_pass pass_tree_loop = |
| 0 | 51 { |
| 52 { | |
| 53 GIMPLE_PASS, | |
| 54 "loop", /* name */ | |
| 55 gate_tree_loop, /* gate */ | |
| 56 NULL, /* execute */ | |
| 57 NULL, /* sub */ | |
| 58 NULL, /* next */ | |
| 59 0, /* static_pass_number */ | |
| 60 TV_TREE_LOOP, /* tv_id */ | |
| 61 PROP_cfg, /* properties_required */ | |
| 62 0, /* properties_provided */ | |
| 63 0, /* properties_destroyed */ | |
| 64 TODO_ggc_collect, /* todo_flags_start */ | |
| 65 TODO_dump_func | TODO_verify_ssa | TODO_ggc_collect /* todo_flags_finish */ | |
| 66 } | |
| 67 }; | |
| 68 | |
| 69 /* Loop optimizer initialization. */ | |
| 70 | |
| 71 static unsigned int | |
| 72 tree_ssa_loop_init (void) | |
| 73 { | |
| 74 loop_optimizer_init (LOOPS_NORMAL | |
| 75 | LOOPS_HAVE_RECORDED_EXITS); | |
| 76 rewrite_into_loop_closed_ssa (NULL, TODO_update_ssa); | |
| 77 | |
| 78 if (number_of_loops () <= 1) | |
| 79 return 0; | |
| 80 | |
| 81 scev_initialize (); | |
| 82 return 0; | |
| 83 } | |
|
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84 |
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85 struct gimple_opt_pass pass_tree_loop_init = |
| 0 | 86 { |
| 87 { | |
| 88 GIMPLE_PASS, | |
| 89 "loopinit", /* name */ | |
| 90 NULL, /* gate */ | |
| 91 tree_ssa_loop_init, /* execute */ | |
| 92 NULL, /* sub */ | |
| 93 NULL, /* next */ | |
| 94 0, /* static_pass_number */ | |
| 95 TV_TREE_LOOP_INIT, /* tv_id */ | |
| 96 PROP_cfg, /* properties_required */ | |
| 97 0, /* properties_provided */ | |
| 98 0, /* properties_destroyed */ | |
| 99 0, /* todo_flags_start */ | |
| 100 TODO_dump_func | TODO_verify_loops /* todo_flags_finish */ | |
| 101 } | |
| 102 }; | |
| 103 | |
| 104 /* Loop invariant motion pass. */ | |
| 105 | |
| 106 static unsigned int | |
| 107 tree_ssa_loop_im (void) | |
| 108 { | |
| 109 if (number_of_loops () <= 1) | |
| 110 return 0; | |
| 111 | |
| 112 tree_ssa_lim (); | |
| 113 return 0; | |
| 114 } | |
| 115 | |
| 116 static bool | |
| 117 gate_tree_ssa_loop_im (void) | |
| 118 { | |
| 119 return flag_tree_loop_im != 0; | |
| 120 } | |
| 121 | |
|
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122 struct gimple_opt_pass pass_lim = |
| 0 | 123 { |
| 124 { | |
| 125 GIMPLE_PASS, | |
| 126 "lim", /* name */ | |
| 127 gate_tree_ssa_loop_im, /* gate */ | |
| 128 tree_ssa_loop_im, /* execute */ | |
| 129 NULL, /* sub */ | |
| 130 NULL, /* next */ | |
| 131 0, /* static_pass_number */ | |
| 132 TV_LIM, /* tv_id */ | |
| 133 PROP_cfg, /* properties_required */ | |
| 134 0, /* properties_provided */ | |
| 135 0, /* properties_destroyed */ | |
| 136 0, /* todo_flags_start */ | |
| 137 TODO_dump_func | TODO_verify_loops /* todo_flags_finish */ | |
| 138 } | |
| 139 }; | |
| 140 | |
| 141 /* Loop unswitching pass. */ | |
| 142 | |
| 143 static unsigned int | |
| 144 tree_ssa_loop_unswitch (void) | |
| 145 { | |
| 146 if (number_of_loops () <= 1) | |
| 147 return 0; | |
| 148 | |
| 149 return tree_ssa_unswitch_loops (); | |
| 150 } | |
| 151 | |
| 152 static bool | |
| 153 gate_tree_ssa_loop_unswitch (void) | |
| 154 { | |
| 155 return flag_unswitch_loops != 0; | |
| 156 } | |
| 157 | |
|
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158 struct gimple_opt_pass pass_tree_unswitch = |
| 0 | 159 { |
| 160 { | |
| 161 GIMPLE_PASS, | |
| 162 "unswitch", /* name */ | |
| 163 gate_tree_ssa_loop_unswitch, /* gate */ | |
| 164 tree_ssa_loop_unswitch, /* execute */ | |
| 165 NULL, /* sub */ | |
| 166 NULL, /* next */ | |
| 167 0, /* static_pass_number */ | |
| 168 TV_TREE_LOOP_UNSWITCH, /* tv_id */ | |
| 169 PROP_cfg, /* properties_required */ | |
| 170 0, /* properties_provided */ | |
| 171 0, /* properties_destroyed */ | |
| 172 0, /* todo_flags_start */ | |
| 173 TODO_ggc_collect | TODO_dump_func | |
| 174 | TODO_verify_loops /* todo_flags_finish */ | |
| 175 } | |
| 176 }; | |
| 177 | |
| 178 /* Predictive commoning. */ | |
| 179 | |
| 180 static unsigned | |
| 181 run_tree_predictive_commoning (void) | |
| 182 { | |
| 183 if (!current_loops) | |
| 184 return 0; | |
| 185 | |
| 186 tree_predictive_commoning (); | |
| 187 return 0; | |
| 188 } | |
| 189 | |
| 190 static bool | |
| 191 gate_tree_predictive_commoning (void) | |
| 192 { | |
| 193 return flag_predictive_commoning != 0; | |
| 194 } | |
| 195 | |
|
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196 struct gimple_opt_pass pass_predcom = |
| 0 | 197 { |
| 198 { | |
| 199 GIMPLE_PASS, | |
| 200 "pcom", /* name */ | |
| 201 gate_tree_predictive_commoning, /* gate */ | |
| 202 run_tree_predictive_commoning, /* execute */ | |
| 203 NULL, /* sub */ | |
| 204 NULL, /* next */ | |
| 205 0, /* static_pass_number */ | |
| 206 TV_PREDCOM, /* tv_id */ | |
| 207 PROP_cfg, /* properties_required */ | |
| 208 0, /* properties_provided */ | |
| 209 0, /* properties_destroyed */ | |
| 210 0, /* todo_flags_start */ | |
| 211 TODO_dump_func | TODO_verify_loops | |
| 212 | TODO_update_ssa_only_virtuals /* todo_flags_finish */ | |
| 213 } | |
| 214 }; | |
| 215 | |
| 216 /* Loop autovectorization. */ | |
| 217 | |
| 218 static unsigned int | |
| 219 tree_vectorize (void) | |
| 220 { | |
| 221 if (number_of_loops () <= 1) | |
| 222 return 0; | |
| 223 | |
| 224 return vectorize_loops (); | |
| 225 } | |
| 226 | |
| 227 static bool | |
| 228 gate_tree_vectorize (void) | |
| 229 { | |
| 230 return flag_tree_vectorize; | |
| 231 } | |
| 232 | |
| 233 struct gimple_opt_pass pass_vectorize = | |
| 234 { | |
| 235 { | |
| 236 GIMPLE_PASS, | |
| 237 "vect", /* name */ | |
| 238 gate_tree_vectorize, /* gate */ | |
| 239 tree_vectorize, /* execute */ | |
| 240 NULL, /* sub */ | |
| 241 NULL, /* next */ | |
| 242 0, /* static_pass_number */ | |
| 243 TV_TREE_VECTORIZATION, /* tv_id */ | |
| 244 PROP_cfg | PROP_ssa, /* properties_required */ | |
| 245 0, /* properties_provided */ | |
| 246 0, /* properties_destroyed */ | |
| 247 TODO_verify_loops, /* todo_flags_start */ | |
| 248 TODO_dump_func | TODO_update_ssa | |
| 249 | TODO_ggc_collect /* todo_flags_finish */ | |
| 250 } | |
| 251 }; | |
| 252 | |
| 253 /* Loop nest optimizations. */ | |
| 254 | |
| 255 static unsigned int | |
| 256 tree_linear_transform (void) | |
| 257 { | |
| 258 if (number_of_loops () <= 1) | |
| 259 return 0; | |
| 260 | |
| 261 linear_transform_loops (); | |
| 262 return 0; | |
| 263 } | |
| 264 | |
| 265 static bool | |
| 266 gate_tree_linear_transform (void) | |
| 267 { | |
| 268 return flag_tree_loop_linear != 0; | |
| 269 } | |
| 270 | |
| 271 struct gimple_opt_pass pass_linear_transform = | |
| 272 { | |
| 273 { | |
| 274 GIMPLE_PASS, | |
| 275 "ltrans", /* name */ | |
| 276 gate_tree_linear_transform, /* gate */ | |
| 277 tree_linear_transform, /* execute */ | |
| 278 NULL, /* sub */ | |
| 279 NULL, /* next */ | |
| 280 0, /* static_pass_number */ | |
| 281 TV_TREE_LINEAR_TRANSFORM, /* tv_id */ | |
| 282 PROP_cfg | PROP_ssa, /* properties_required */ | |
| 283 0, /* properties_provided */ | |
| 284 0, /* properties_destroyed */ | |
| 285 0, /* todo_flags_start */ | |
| 286 TODO_dump_func | TODO_verify_loops | |
| 287 | TODO_update_ssa_only_virtuals | |
| 288 | TODO_ggc_collect /* todo_flags_finish */ | |
| 289 } | |
| 290 }; | |
| 291 | |
| 292 /* GRAPHITE optimizations. */ | |
| 293 | |
| 294 static unsigned int | |
| 295 graphite_transforms (void) | |
| 296 { | |
| 297 if (!current_loops) | |
| 298 return 0; | |
| 299 | |
| 300 graphite_transform_loops (); | |
| 301 | |
| 302 return 0; | |
| 303 } | |
| 304 | |
| 305 static bool | |
| 306 gate_graphite_transforms (void) | |
| 307 { | |
|
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308 /* Enable -fgraphite pass if any one of the graphite optimization flags |
| 0 | 309 is turned on. */ |
| 310 if (flag_loop_block || flag_loop_interchange || flag_loop_strip_mine | |
|
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311 || flag_graphite_identity || flag_loop_parallelize_all) |
| 0 | 312 flag_graphite = 1; |
| 313 | |
| 314 return flag_graphite != 0; | |
| 315 } | |
| 316 | |
| 317 struct gimple_opt_pass pass_graphite_transforms = | |
| 318 { | |
| 319 { | |
| 320 GIMPLE_PASS, | |
| 321 "graphite", /* name */ | |
| 322 gate_graphite_transforms, /* gate */ | |
| 323 graphite_transforms, /* execute */ | |
| 324 NULL, /* sub */ | |
| 325 NULL, /* next */ | |
| 326 0, /* static_pass_number */ | |
| 327 TV_GRAPHITE_TRANSFORMS, /* tv_id */ | |
| 328 PROP_cfg | PROP_ssa, /* properties_required */ | |
| 329 0, /* properties_provided */ | |
| 330 0, /* properties_destroyed */ | |
| 331 0, /* todo_flags_start */ | |
| 332 TODO_verify_loops /* todo_flags_finish */ | |
| 333 } | |
| 334 }; | |
| 335 | |
| 336 /* Check the correctness of the data dependence analyzers. */ | |
| 337 | |
| 338 static unsigned int | |
| 339 check_data_deps (void) | |
| 340 { | |
| 341 if (number_of_loops () <= 1) | |
| 342 return 0; | |
| 343 | |
| 344 tree_check_data_deps (); | |
| 345 return 0; | |
| 346 } | |
| 347 | |
| 348 static bool | |
| 349 gate_check_data_deps (void) | |
| 350 { | |
| 351 return flag_check_data_deps != 0; | |
| 352 } | |
| 353 | |
| 354 struct gimple_opt_pass pass_check_data_deps = | |
| 355 { | |
| 356 { | |
| 357 GIMPLE_PASS, | |
| 358 "ckdd", /* name */ | |
| 359 gate_check_data_deps, /* gate */ | |
| 360 check_data_deps, /* execute */ | |
| 361 NULL, /* sub */ | |
| 362 NULL, /* next */ | |
| 363 0, /* static_pass_number */ | |
| 364 TV_CHECK_DATA_DEPS, /* tv_id */ | |
| 365 PROP_cfg | PROP_ssa, /* properties_required */ | |
| 366 0, /* properties_provided */ | |
| 367 0, /* properties_destroyed */ | |
| 368 0, /* todo_flags_start */ | |
| 369 TODO_dump_func /* todo_flags_finish */ | |
| 370 } | |
| 371 }; | |
| 372 | |
| 373 /* Canonical induction variable creation pass. */ | |
| 374 | |
| 375 static unsigned int | |
| 376 tree_ssa_loop_ivcanon (void) | |
| 377 { | |
| 378 if (number_of_loops () <= 1) | |
| 379 return 0; | |
| 380 | |
| 381 return canonicalize_induction_variables (); | |
| 382 } | |
| 383 | |
| 384 static bool | |
| 385 gate_tree_ssa_loop_ivcanon (void) | |
| 386 { | |
| 387 return flag_tree_loop_ivcanon != 0; | |
| 388 } | |
| 389 | |
| 390 struct gimple_opt_pass pass_iv_canon = | |
| 391 { | |
| 392 { | |
| 393 GIMPLE_PASS, | |
| 394 "ivcanon", /* name */ | |
| 395 gate_tree_ssa_loop_ivcanon, /* gate */ | |
| 396 tree_ssa_loop_ivcanon, /* execute */ | |
| 397 NULL, /* sub */ | |
| 398 NULL, /* next */ | |
| 399 0, /* static_pass_number */ | |
| 400 TV_TREE_LOOP_IVCANON, /* tv_id */ | |
| 401 PROP_cfg | PROP_ssa, /* properties_required */ | |
| 402 0, /* properties_provided */ | |
| 403 0, /* properties_destroyed */ | |
| 404 0, /* todo_flags_start */ | |
| 405 TODO_dump_func | TODO_verify_loops /* todo_flags_finish */ | |
| 406 } | |
| 407 }; | |
| 408 | |
| 409 /* Propagation of constants using scev. */ | |
| 410 | |
| 411 static bool | |
| 412 gate_scev_const_prop (void) | |
| 413 { | |
| 414 return flag_tree_scev_cprop; | |
| 415 } | |
| 416 | |
| 417 struct gimple_opt_pass pass_scev_cprop = | |
| 418 { | |
| 419 { | |
| 420 GIMPLE_PASS, | |
| 421 "sccp", /* name */ | |
| 422 gate_scev_const_prop, /* gate */ | |
| 423 scev_const_prop, /* execute */ | |
| 424 NULL, /* sub */ | |
| 425 NULL, /* next */ | |
| 426 0, /* static_pass_number */ | |
| 427 TV_SCEV_CONST, /* tv_id */ | |
| 428 PROP_cfg | PROP_ssa, /* properties_required */ | |
| 429 0, /* properties_provided */ | |
| 430 0, /* properties_destroyed */ | |
| 431 0, /* todo_flags_start */ | |
| 432 TODO_dump_func | TODO_cleanup_cfg | |
| 433 | TODO_update_ssa_only_virtuals | |
| 434 /* todo_flags_finish */ | |
| 435 } | |
| 436 }; | |
| 437 | |
| 438 /* Record bounds on numbers of iterations of loops. */ | |
| 439 | |
| 440 static unsigned int | |
| 441 tree_ssa_loop_bounds (void) | |
| 442 { | |
| 443 if (number_of_loops () <= 1) | |
| 444 return 0; | |
| 445 | |
| 446 estimate_numbers_of_iterations (); | |
| 447 scev_reset (); | |
| 448 return 0; | |
| 449 } | |
| 450 | |
| 451 struct gimple_opt_pass pass_record_bounds = | |
| 452 { | |
| 453 { | |
| 454 GIMPLE_PASS, | |
|
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455 "*record_bounds", /* name */ |
| 0 | 456 NULL, /* gate */ |
| 457 tree_ssa_loop_bounds, /* execute */ | |
| 458 NULL, /* sub */ | |
| 459 NULL, /* next */ | |
| 460 0, /* static_pass_number */ | |
| 461 TV_TREE_LOOP_BOUNDS, /* tv_id */ | |
| 462 PROP_cfg | PROP_ssa, /* properties_required */ | |
| 463 0, /* properties_provided */ | |
| 464 0, /* properties_destroyed */ | |
| 465 0, /* todo_flags_start */ | |
| 466 0 /* todo_flags_finish */ | |
| 467 } | |
| 468 }; | |
| 469 | |
| 470 /* Complete unrolling of loops. */ | |
| 471 | |
| 472 static unsigned int | |
| 473 tree_complete_unroll (void) | |
| 474 { | |
| 475 if (number_of_loops () <= 1) | |
| 476 return 0; | |
| 477 | |
| 478 return tree_unroll_loops_completely (flag_unroll_loops | |
| 479 || flag_peel_loops | |
| 480 || optimize >= 3, true); | |
| 481 } | |
| 482 | |
| 483 static bool | |
| 484 gate_tree_complete_unroll (void) | |
| 485 { | |
| 486 return true; | |
| 487 } | |
| 488 | |
| 489 struct gimple_opt_pass pass_complete_unroll = | |
| 490 { | |
| 491 { | |
| 492 GIMPLE_PASS, | |
| 493 "cunroll", /* name */ | |
| 494 gate_tree_complete_unroll, /* gate */ | |
| 495 tree_complete_unroll, /* execute */ | |
| 496 NULL, /* sub */ | |
| 497 NULL, /* next */ | |
| 498 0, /* static_pass_number */ | |
| 499 TV_COMPLETE_UNROLL, /* tv_id */ | |
| 500 PROP_cfg | PROP_ssa, /* properties_required */ | |
| 501 0, /* properties_provided */ | |
| 502 0, /* properties_destroyed */ | |
| 503 0, /* todo_flags_start */ | |
| 504 TODO_dump_func | TODO_verify_loops | |
| 505 | TODO_ggc_collect /* todo_flags_finish */ | |
| 506 } | |
| 507 }; | |
| 508 | |
| 509 /* Complete unrolling of inner loops. */ | |
| 510 | |
| 511 static unsigned int | |
| 512 tree_complete_unroll_inner (void) | |
| 513 { | |
| 514 unsigned ret = 0; | |
| 515 | |
| 516 loop_optimizer_init (LOOPS_NORMAL | |
| 517 | LOOPS_HAVE_RECORDED_EXITS); | |
| 518 if (number_of_loops () > 1) | |
| 519 { | |
| 520 scev_initialize (); | |
| 521 ret = tree_unroll_loops_completely (optimize >= 3, false); | |
| 522 free_numbers_of_iterations_estimates (); | |
| 523 scev_finalize (); | |
| 524 } | |
| 525 loop_optimizer_finalize (); | |
| 526 | |
| 527 return ret; | |
| 528 } | |
| 529 | |
| 530 static bool | |
| 531 gate_tree_complete_unroll_inner (void) | |
| 532 { | |
| 533 return optimize >= 2; | |
| 534 } | |
| 535 | |
| 536 struct gimple_opt_pass pass_complete_unrolli = | |
| 537 { | |
| 538 { | |
| 539 GIMPLE_PASS, | |
| 540 "cunrolli", /* name */ | |
| 541 gate_tree_complete_unroll_inner, /* gate */ | |
| 542 tree_complete_unroll_inner, /* execute */ | |
| 543 NULL, /* sub */ | |
| 544 NULL, /* next */ | |
| 545 0, /* static_pass_number */ | |
| 546 TV_COMPLETE_UNROLL, /* tv_id */ | |
| 547 PROP_cfg | PROP_ssa, /* properties_required */ | |
| 548 0, /* properties_provided */ | |
| 549 0, /* properties_destroyed */ | |
| 550 0, /* todo_flags_start */ | |
| 551 TODO_dump_func | TODO_verify_loops | |
| 552 | TODO_ggc_collect /* todo_flags_finish */ | |
| 553 } | |
| 554 }; | |
| 555 | |
| 556 /* Parallelization. */ | |
| 557 | |
| 558 static bool | |
| 559 gate_tree_parallelize_loops (void) | |
| 560 { | |
| 561 return flag_tree_parallelize_loops > 1; | |
| 562 } | |
| 563 | |
| 564 static unsigned | |
| 565 tree_parallelize_loops (void) | |
| 566 { | |
| 567 if (number_of_loops () <= 1) | |
| 568 return 0; | |
| 569 | |
| 570 if (parallelize_loops ()) | |
| 571 return TODO_cleanup_cfg | TODO_rebuild_alias; | |
| 572 return 0; | |
| 573 } | |
| 574 | |
| 575 struct gimple_opt_pass pass_parallelize_loops = | |
| 576 { | |
| 577 { | |
| 578 GIMPLE_PASS, | |
| 579 "parloops", /* name */ | |
| 580 gate_tree_parallelize_loops, /* gate */ | |
| 581 tree_parallelize_loops, /* execute */ | |
| 582 NULL, /* sub */ | |
| 583 NULL, /* next */ | |
| 584 0, /* static_pass_number */ | |
| 585 TV_TREE_PARALLELIZE_LOOPS, /* tv_id */ | |
| 586 PROP_cfg | PROP_ssa, /* properties_required */ | |
| 587 0, /* properties_provided */ | |
| 588 0, /* properties_destroyed */ | |
| 589 0, /* todo_flags_start */ | |
| 590 TODO_dump_func | TODO_verify_loops /* todo_flags_finish */ | |
| 591 } | |
| 592 }; | |
| 593 | |
| 594 /* Prefetching. */ | |
| 595 | |
| 596 static unsigned int | |
| 597 tree_ssa_loop_prefetch (void) | |
| 598 { | |
| 599 if (number_of_loops () <= 1) | |
| 600 return 0; | |
| 601 | |
| 602 return tree_ssa_prefetch_arrays (); | |
| 603 } | |
| 604 | |
| 605 static bool | |
| 606 gate_tree_ssa_loop_prefetch (void) | |
| 607 { | |
| 608 return flag_prefetch_loop_arrays != 0; | |
| 609 } | |
| 610 | |
| 611 struct gimple_opt_pass pass_loop_prefetch = | |
| 612 { | |
| 613 { | |
| 614 GIMPLE_PASS, | |
| 615 "aprefetch", /* name */ | |
| 616 gate_tree_ssa_loop_prefetch, /* gate */ | |
| 617 tree_ssa_loop_prefetch, /* execute */ | |
| 618 NULL, /* sub */ | |
| 619 NULL, /* next */ | |
| 620 0, /* static_pass_number */ | |
| 621 TV_TREE_PREFETCH, /* tv_id */ | |
| 622 PROP_cfg | PROP_ssa, /* properties_required */ | |
| 623 0, /* properties_provided */ | |
| 624 0, /* properties_destroyed */ | |
| 625 0, /* todo_flags_start */ | |
| 626 TODO_dump_func | TODO_verify_loops /* todo_flags_finish */ | |
| 627 } | |
| 628 }; | |
| 629 | |
| 630 /* Induction variable optimizations. */ | |
| 631 | |
| 632 static unsigned int | |
| 633 tree_ssa_loop_ivopts (void) | |
| 634 { | |
| 635 if (number_of_loops () <= 1) | |
| 636 return 0; | |
| 637 | |
| 638 tree_ssa_iv_optimize (); | |
| 639 return 0; | |
| 640 } | |
| 641 | |
| 642 static bool | |
| 643 gate_tree_ssa_loop_ivopts (void) | |
| 644 { | |
| 645 return flag_ivopts != 0; | |
| 646 } | |
| 647 | |
| 648 struct gimple_opt_pass pass_iv_optimize = | |
| 649 { | |
| 650 { | |
| 651 GIMPLE_PASS, | |
| 652 "ivopts", /* name */ | |
| 653 gate_tree_ssa_loop_ivopts, /* gate */ | |
| 654 tree_ssa_loop_ivopts, /* execute */ | |
| 655 NULL, /* sub */ | |
| 656 NULL, /* next */ | |
| 657 0, /* static_pass_number */ | |
| 658 TV_TREE_LOOP_IVOPTS, /* tv_id */ | |
| 659 PROP_cfg | PROP_ssa, /* properties_required */ | |
| 660 0, /* properties_provided */ | |
| 661 0, /* properties_destroyed */ | |
| 662 0, /* todo_flags_start */ | |
| 663 TODO_dump_func | TODO_verify_loops | |
| 664 | TODO_update_ssa | TODO_ggc_collect /* todo_flags_finish */ | |
| 665 } | |
| 666 }; | |
| 667 | |
| 668 /* Loop optimizer finalization. */ | |
| 669 | |
| 670 static unsigned int | |
| 671 tree_ssa_loop_done (void) | |
| 672 { | |
| 673 free_numbers_of_iterations_estimates (); | |
| 674 scev_finalize (); | |
| 675 loop_optimizer_finalize (); | |
| 676 return 0; | |
| 677 } | |
|
55
77e2b8dfacca
update it from 4.4.3 to 4.5.0
ryoma <e075725@ie.u-ryukyu.ac.jp>
parents:
0
diff
changeset
|
678 |
|
77e2b8dfacca
update it from 4.4.3 to 4.5.0
ryoma <e075725@ie.u-ryukyu.ac.jp>
parents:
0
diff
changeset
|
679 struct gimple_opt_pass pass_tree_loop_done = |
| 0 | 680 { |
| 681 { | |
| 682 GIMPLE_PASS, | |
| 683 "loopdone", /* name */ | |
| 684 NULL, /* gate */ | |
| 685 tree_ssa_loop_done, /* execute */ | |
| 686 NULL, /* sub */ | |
| 687 NULL, /* next */ | |
| 688 0, /* static_pass_number */ | |
| 689 TV_TREE_LOOP_FINI, /* tv_id */ | |
| 690 PROP_cfg, /* properties_required */ | |
| 691 0, /* properties_provided */ | |
| 692 0, /* properties_destroyed */ | |
| 693 0, /* todo_flags_start */ | |
| 694 TODO_cleanup_cfg | TODO_dump_func /* todo_flags_finish */ | |
| 695 } | |
| 696 }; |