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author | Dan Albert <danalbert@google.com> | 2015-06-17 11:09:54 -0700 |
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committer | Dan Albert <danalbert@google.com> | 2015-06-17 14:15:22 -0700 |
commit | f378ebf14df0952eae870c9865bab8326aa8f137 (patch) | |
tree | 31794503eb2a8c64ea5f313b93100f1163afcffb /gcc-4.4.3/gcc/tree-ssa-loop.c | |
parent | 2c58169824949d3a597d9fa81931e001ef9b1bd0 (diff) | |
download | toolchain_gcc-f378ebf14df0952eae870c9865bab8326aa8f137.tar.gz toolchain_gcc-f378ebf14df0952eae870c9865bab8326aa8f137.tar.bz2 toolchain_gcc-f378ebf14df0952eae870c9865bab8326aa8f137.zip |
Delete old versions of GCC.
Change-Id: I710f125d905290e1024cbd67f48299861790c66c
Diffstat (limited to 'gcc-4.4.3/gcc/tree-ssa-loop.c')
-rw-r--r-- | gcc-4.4.3/gcc/tree-ssa-loop.c | 727 |
1 files changed, 0 insertions, 727 deletions
diff --git a/gcc-4.4.3/gcc/tree-ssa-loop.c b/gcc-4.4.3/gcc/tree-ssa-loop.c deleted file mode 100644 index ca842acd0..000000000 --- a/gcc-4.4.3/gcc/tree-ssa-loop.c +++ /dev/null @@ -1,727 +0,0 @@ -/* Loop optimizations over tree-ssa. - Copyright (C) 2003, 2005, 2006, 2007, 2008 Free Software Foundation, Inc. - -This file is part of GCC. - -GCC is free software; you can redistribute it and/or modify it -under the terms of the GNU General Public License as published by the -Free Software Foundation; either version 3, or (at your option) any -later version. - -GCC is distributed in the hope that it will be useful, but WITHOUT -ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or -FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License -for more details. - -You should have received a copy of the GNU General Public License -along with GCC; see the file COPYING3. If not see -<http://www.gnu.org/licenses/>. */ - -#include "config.h" -#include "system.h" -#include "coretypes.h" -#include "tm.h" -#include "tree.h" -#include "rtl.h" -#include "tm_p.h" -#include "hard-reg-set.h" -#include "basic-block.h" -#include "output.h" -#include "diagnostic.h" -#include "tree-flow.h" -#include "tree-dump.h" -#include "tree-pass.h" -#include "timevar.h" -#include "cfgloop.h" -#include "flags.h" -#include "tree-inline.h" -#include "tree-scalar-evolution.h" - -/* The loop superpass. */ - -static bool -gate_tree_loop (void) -{ - return flag_tree_loop_optimize != 0; -} - -struct gimple_opt_pass pass_tree_loop = -{ - { - GIMPLE_PASS, - "loop", /* name */ - gate_tree_loop, /* gate */ - NULL, /* execute */ - NULL, /* sub */ - NULL, /* next */ - 0, /* static_pass_number */ - TV_TREE_LOOP, /* tv_id */ - PROP_cfg, /* properties_required */ - 0, /* properties_provided */ - 0, /* properties_destroyed */ - TODO_ggc_collect, /* todo_flags_start */ - TODO_dump_func | TODO_verify_ssa | TODO_ggc_collect /* todo_flags_finish */ - } -}; - -/* Loop optimizer initialization. */ - -static unsigned int -tree_ssa_loop_init (void) -{ - loop_optimizer_init (LOOPS_NORMAL - | LOOPS_HAVE_RECORDED_EXITS); - rewrite_into_loop_closed_ssa (NULL, TODO_update_ssa); - - if (number_of_loops () <= 1) - return 0; - - scev_initialize (); - return 0; -} - -struct gimple_opt_pass pass_tree_loop_init = -{ - { - GIMPLE_PASS, - "loopinit", /* name */ - NULL, /* gate */ - tree_ssa_loop_init, /* execute */ - NULL, /* sub */ - NULL, /* next */ - 0, /* static_pass_number */ - TV_TREE_LOOP_INIT, /* tv_id */ - PROP_cfg, /* properties_required */ - 0, /* properties_provided */ - 0, /* properties_destroyed */ - 0, /* todo_flags_start */ - TODO_dump_func | TODO_verify_loops /* todo_flags_finish */ - } -}; - -/* Loop invariant motion pass. */ - -static unsigned int -tree_ssa_loop_im (void) -{ - if (number_of_loops () <= 1) - return 0; - - tree_ssa_lim (); - return 0; -} - -static bool -gate_tree_ssa_loop_im (void) -{ - return flag_tree_loop_im != 0; -} - -struct gimple_opt_pass pass_lim = -{ - { - GIMPLE_PASS, - "lim", /* name */ - gate_tree_ssa_loop_im, /* gate */ - tree_ssa_loop_im, /* execute */ - NULL, /* sub */ - NULL, /* next */ - 0, /* static_pass_number */ - TV_LIM, /* tv_id */ - PROP_cfg, /* properties_required */ - 0, /* properties_provided */ - 0, /* properties_destroyed */ - 0, /* todo_flags_start */ - TODO_dump_func | TODO_verify_loops /* todo_flags_finish */ - } -}; - -/* Loop unswitching pass. */ - -static unsigned int -tree_ssa_loop_unswitch (void) -{ - if (number_of_loops () <= 1) - return 0; - - return tree_ssa_unswitch_loops (); -} - -static bool -gate_tree_ssa_loop_unswitch (void) -{ - return flag_unswitch_loops != 0; -} - -struct gimple_opt_pass pass_tree_unswitch = -{ - { - GIMPLE_PASS, - "unswitch", /* name */ - gate_tree_ssa_loop_unswitch, /* gate */ - tree_ssa_loop_unswitch, /* execute */ - NULL, /* sub */ - NULL, /* next */ - 0, /* static_pass_number */ - TV_TREE_LOOP_UNSWITCH, /* tv_id */ - PROP_cfg, /* properties_required */ - 0, /* properties_provided */ - 0, /* properties_destroyed */ - 0, /* todo_flags_start */ - TODO_ggc_collect | TODO_dump_func - | TODO_verify_loops /* todo_flags_finish */ - } -}; - -/* Predictive commoning. */ - -static unsigned -run_tree_predictive_commoning (void) -{ - if (!current_loops) - return 0; - - tree_predictive_commoning (); - return 0; -} - -static bool -gate_tree_predictive_commoning (void) -{ - return flag_predictive_commoning != 0; -} - -struct gimple_opt_pass pass_predcom = -{ - { - GIMPLE_PASS, - "pcom", /* name */ - gate_tree_predictive_commoning, /* gate */ - run_tree_predictive_commoning, /* execute */ - NULL, /* sub */ - NULL, /* next */ - 0, /* static_pass_number */ - TV_PREDCOM, /* tv_id */ - PROP_cfg, /* properties_required */ - 0, /* properties_provided */ - 0, /* properties_destroyed */ - 0, /* todo_flags_start */ - TODO_dump_func | TODO_verify_loops - | TODO_update_ssa_only_virtuals /* todo_flags_finish */ - } -}; - -/* Loop autovectorization. */ - -static unsigned int -tree_vectorize (void) -{ - if (number_of_loops () <= 1) - return 0; - - return vectorize_loops (); -} - -static bool -gate_tree_vectorize (void) -{ - return flag_tree_vectorize; -} - -struct gimple_opt_pass pass_vectorize = -{ - { - GIMPLE_PASS, - "vect", /* name */ - gate_tree_vectorize, /* gate */ - tree_vectorize, /* execute */ - NULL, /* sub */ - NULL, /* next */ - 0, /* static_pass_number */ - TV_TREE_VECTORIZATION, /* tv_id */ - PROP_cfg | PROP_ssa, /* properties_required */ - 0, /* properties_provided */ - 0, /* properties_destroyed */ - TODO_verify_loops, /* todo_flags_start */ - TODO_dump_func | TODO_update_ssa - | TODO_ggc_collect /* todo_flags_finish */ - } -}; - -/* Loop nest optimizations. */ - -static unsigned int -tree_linear_transform (void) -{ - if (number_of_loops () <= 1) - return 0; - - linear_transform_loops (); - return 0; -} - -static bool -gate_tree_linear_transform (void) -{ - return flag_tree_loop_linear != 0; -} - -struct gimple_opt_pass pass_linear_transform = -{ - { - GIMPLE_PASS, - "ltrans", /* name */ - gate_tree_linear_transform, /* gate */ - tree_linear_transform, /* execute */ - NULL, /* sub */ - NULL, /* next */ - 0, /* static_pass_number */ - TV_TREE_LINEAR_TRANSFORM, /* tv_id */ - PROP_cfg | PROP_ssa, /* properties_required */ - 0, /* properties_provided */ - 0, /* properties_destroyed */ - 0, /* todo_flags_start */ - TODO_dump_func | TODO_verify_loops - | TODO_update_ssa_only_virtuals - | TODO_ggc_collect /* todo_flags_finish */ - } -}; - -/* GRAPHITE optimizations. */ - -static unsigned int -graphite_transforms (void) -{ - if (!current_loops) - return 0; - - graphite_transform_loops (); - - return 0; -} - -static bool -gate_graphite_transforms (void) -{ - /* Enable -fgraphite pass if any one of the graphite optimization flags - is turned on. */ - if (flag_loop_block || flag_loop_interchange || flag_loop_strip_mine - || flag_graphite_identity) - flag_graphite = 1; - - return flag_graphite != 0; -} - -struct gimple_opt_pass pass_graphite_transforms = -{ - { - GIMPLE_PASS, - "graphite", /* name */ - gate_graphite_transforms, /* gate */ - graphite_transforms, /* execute */ - NULL, /* sub */ - NULL, /* next */ - 0, /* static_pass_number */ - TV_GRAPHITE_TRANSFORMS, /* tv_id */ - PROP_cfg | PROP_ssa, /* properties_required */ - 0, /* properties_provided */ - 0, /* properties_destroyed */ - 0, /* todo_flags_start */ - TODO_verify_loops /* todo_flags_finish */ - } -}; - -/* Check the correctness of the data dependence analyzers. */ - -static unsigned int -check_data_deps (void) -{ - if (number_of_loops () <= 1) - return 0; - - tree_check_data_deps (); - return 0; -} - -static bool -gate_check_data_deps (void) -{ - return flag_check_data_deps != 0; -} - -struct gimple_opt_pass pass_check_data_deps = -{ - { - GIMPLE_PASS, - "ckdd", /* name */ - gate_check_data_deps, /* gate */ - check_data_deps, /* execute */ - NULL, /* sub */ - NULL, /* next */ - 0, /* static_pass_number */ - TV_CHECK_DATA_DEPS, /* tv_id */ - PROP_cfg | PROP_ssa, /* properties_required */ - 0, /* properties_provided */ - 0, /* properties_destroyed */ - 0, /* todo_flags_start */ - TODO_dump_func /* todo_flags_finish */ - } -}; - -/* Canonical induction variable creation pass. */ - -static unsigned int -tree_ssa_loop_ivcanon (void) -{ - if (number_of_loops () <= 1) - return 0; - - return canonicalize_induction_variables (); -} - -static bool -gate_tree_ssa_loop_ivcanon (void) -{ - return flag_tree_loop_ivcanon != 0; -} - -struct gimple_opt_pass pass_iv_canon = -{ - { - GIMPLE_PASS, - "ivcanon", /* name */ - gate_tree_ssa_loop_ivcanon, /* gate */ - tree_ssa_loop_ivcanon, /* execute */ - NULL, /* sub */ - NULL, /* next */ - 0, /* static_pass_number */ - TV_TREE_LOOP_IVCANON, /* tv_id */ - PROP_cfg | PROP_ssa, /* properties_required */ - 0, /* properties_provided */ - 0, /* properties_destroyed */ - 0, /* todo_flags_start */ - TODO_dump_func | TODO_verify_loops /* todo_flags_finish */ - } -}; - -/* Propagation of constants using scev. */ - -static bool -gate_scev_const_prop (void) -{ - return flag_tree_scev_cprop; -} - -struct gimple_opt_pass pass_scev_cprop = -{ - { - GIMPLE_PASS, - "sccp", /* name */ - gate_scev_const_prop, /* gate */ - scev_const_prop, /* execute */ - NULL, /* sub */ - NULL, /* next */ - 0, /* static_pass_number */ - TV_SCEV_CONST, /* tv_id */ - PROP_cfg | PROP_ssa, /* properties_required */ - 0, /* properties_provided */ - 0, /* properties_destroyed */ - 0, /* todo_flags_start */ - TODO_dump_func | TODO_cleanup_cfg - | TODO_update_ssa_only_virtuals - /* todo_flags_finish */ - } -}; - -/* Remove empty loops. */ - -static unsigned int -tree_ssa_empty_loop (void) -{ - if (number_of_loops () <= 1) - return 0; - - return remove_empty_loops (); -} - -struct gimple_opt_pass pass_empty_loop = -{ - { - GIMPLE_PASS, - "empty", /* name */ - NULL, /* gate */ - tree_ssa_empty_loop, /* execute */ - NULL, /* sub */ - NULL, /* next */ - 0, /* static_pass_number */ - TV_COMPLETE_UNROLL, /* tv_id */ - PROP_cfg | PROP_ssa, /* properties_required */ - 0, /* properties_provided */ - 0, /* properties_destroyed */ - 0, /* todo_flags_start */ - TODO_dump_func | TODO_verify_loops - | TODO_ggc_collect /* todo_flags_finish */ - } -}; - -/* Record bounds on numbers of iterations of loops. */ - -static unsigned int -tree_ssa_loop_bounds (void) -{ - if (number_of_loops () <= 1) - return 0; - - estimate_numbers_of_iterations (); - scev_reset (); - return 0; -} - -struct gimple_opt_pass pass_record_bounds = -{ - { - GIMPLE_PASS, - NULL, /* name */ - NULL, /* gate */ - tree_ssa_loop_bounds, /* execute */ - NULL, /* sub */ - NULL, /* next */ - 0, /* static_pass_number */ - TV_TREE_LOOP_BOUNDS, /* tv_id */ - PROP_cfg | PROP_ssa, /* properties_required */ - 0, /* properties_provided */ - 0, /* properties_destroyed */ - 0, /* todo_flags_start */ - 0 /* todo_flags_finish */ - } -}; - -/* Complete unrolling of loops. */ - -static unsigned int -tree_complete_unroll (void) -{ - if (number_of_loops () <= 1) - return 0; - - return tree_unroll_loops_completely (flag_unroll_loops - || flag_peel_loops - || optimize >= 3, true); -} - -static bool -gate_tree_complete_unroll (void) -{ - return true; -} - -struct gimple_opt_pass pass_complete_unroll = -{ - { - GIMPLE_PASS, - "cunroll", /* name */ - gate_tree_complete_unroll, /* gate */ - tree_complete_unroll, /* execute */ - NULL, /* sub */ - NULL, /* next */ - 0, /* static_pass_number */ - TV_COMPLETE_UNROLL, /* tv_id */ - PROP_cfg | PROP_ssa, /* properties_required */ - 0, /* properties_provided */ - 0, /* properties_destroyed */ - 0, /* todo_flags_start */ - TODO_dump_func | TODO_verify_loops - | TODO_ggc_collect /* todo_flags_finish */ - } -}; - -/* Complete unrolling of inner loops. */ - -static unsigned int -tree_complete_unroll_inner (void) -{ - unsigned ret = 0; - - loop_optimizer_init (LOOPS_NORMAL - | LOOPS_HAVE_RECORDED_EXITS); - if (number_of_loops () > 1) - { - scev_initialize (); - ret = tree_unroll_loops_completely (flag_unroll_loops - || flag_peel_loops - || optimize >= 3, false); - free_numbers_of_iterations_estimates (); - scev_finalize (); - } - loop_optimizer_finalize (); - - return ret; -} - -static bool -gate_tree_complete_unroll_inner (void) -{ - return optimize >= 2; -} - -struct gimple_opt_pass pass_complete_unrolli = -{ - { - GIMPLE_PASS, - "cunrolli", /* name */ - gate_tree_complete_unroll_inner, /* gate */ - tree_complete_unroll_inner, /* execute */ - NULL, /* sub */ - NULL, /* next */ - 0, /* static_pass_number */ - TV_COMPLETE_UNROLL, /* tv_id */ - PROP_cfg | PROP_ssa, /* properties_required */ - 0, /* properties_provided */ - 0, /* properties_destroyed */ - 0, /* todo_flags_start */ - TODO_dump_func | TODO_verify_loops - | TODO_ggc_collect /* todo_flags_finish */ - } -}; - -/* Parallelization. */ - -static bool -gate_tree_parallelize_loops (void) -{ - return flag_tree_parallelize_loops > 1; -} - -static unsigned -tree_parallelize_loops (void) -{ - if (number_of_loops () <= 1) - return 0; - - if (parallelize_loops ()) - return TODO_cleanup_cfg | TODO_rebuild_alias; - return 0; -} - -struct gimple_opt_pass pass_parallelize_loops = -{ - { - GIMPLE_PASS, - "parloops", /* name */ - gate_tree_parallelize_loops, /* gate */ - tree_parallelize_loops, /* execute */ - NULL, /* sub */ - NULL, /* next */ - 0, /* static_pass_number */ - TV_TREE_PARALLELIZE_LOOPS, /* tv_id */ - PROP_cfg | PROP_ssa, /* properties_required */ - 0, /* properties_provided */ - 0, /* properties_destroyed */ - 0, /* todo_flags_start */ - TODO_dump_func | TODO_verify_loops /* todo_flags_finish */ - } -}; - -/* Prefetching. */ - -static unsigned int -tree_ssa_loop_prefetch (void) -{ - if (number_of_loops () <= 1) - return 0; - - return tree_ssa_prefetch_arrays (); -} - -static bool -gate_tree_ssa_loop_prefetch (void) -{ - return flag_prefetch_loop_arrays != 0; -} - -struct gimple_opt_pass pass_loop_prefetch = -{ - { - GIMPLE_PASS, - "aprefetch", /* name */ - gate_tree_ssa_loop_prefetch, /* gate */ - tree_ssa_loop_prefetch, /* execute */ - NULL, /* sub */ - NULL, /* next */ - 0, /* static_pass_number */ - TV_TREE_PREFETCH, /* tv_id */ - PROP_cfg | PROP_ssa, /* properties_required */ - 0, /* properties_provided */ - 0, /* properties_destroyed */ - 0, /* todo_flags_start */ - TODO_dump_func | TODO_verify_loops /* todo_flags_finish */ - } -}; - -/* Induction variable optimizations. */ - -static unsigned int -tree_ssa_loop_ivopts (void) -{ - if (number_of_loops () <= 1) - return 0; - - tree_ssa_iv_optimize (); - return 0; -} - -static bool -gate_tree_ssa_loop_ivopts (void) -{ - return flag_ivopts != 0; -} - -struct gimple_opt_pass pass_iv_optimize = -{ - { - GIMPLE_PASS, - "ivopts", /* name */ - gate_tree_ssa_loop_ivopts, /* gate */ - tree_ssa_loop_ivopts, /* execute */ - NULL, /* sub */ - NULL, /* next */ - 0, /* static_pass_number */ - TV_TREE_LOOP_IVOPTS, /* tv_id */ - PROP_cfg | PROP_ssa, /* properties_required */ - 0, /* properties_provided */ - 0, /* properties_destroyed */ - 0, /* todo_flags_start */ - TODO_dump_func | TODO_verify_loops - | TODO_update_ssa | TODO_ggc_collect /* todo_flags_finish */ - } -}; - -/* Loop optimizer finalization. */ - -static unsigned int -tree_ssa_loop_done (void) -{ - free_numbers_of_iterations_estimates (); - scev_finalize (); - loop_optimizer_finalize (); - return 0; -} - -struct gimple_opt_pass pass_tree_loop_done = -{ - { - GIMPLE_PASS, - "loopdone", /* name */ - NULL, /* gate */ - tree_ssa_loop_done, /* execute */ - NULL, /* sub */ - NULL, /* next */ - 0, /* static_pass_number */ - TV_TREE_LOOP_FINI, /* tv_id */ - PROP_cfg, /* properties_required */ - 0, /* properties_provided */ - 0, /* properties_destroyed */ - 0, /* todo_flags_start */ - TODO_cleanup_cfg | TODO_dump_func /* todo_flags_finish */ - } -}; 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