diff options
Diffstat (limited to 'gcc/opts.c')
| -rw-r--r-- | gcc/opts.c | 16 |
1 files changed, 13 insertions, 3 deletions
@@ -634,7 +634,8 @@ static const struct default_options default_options_table[] = { OPT_LEVELS_2_PLUS, OPT_ftree_switch_conversion, NULL, 1 }, { OPT_LEVELS_2_PLUS, OPT_ftree_tail_merge, NULL, 1 }, { OPT_LEVELS_2_PLUS, OPT_ftree_vrp, NULL, 1 }, - { OPT_LEVELS_2_PLUS, OPT_fvect_cost_model_, NULL, VECT_COST_MODEL_CHEAP }, + { OPT_LEVELS_2_PLUS, OPT_fvect_cost_model_, NULL, + VECT_COST_MODEL_VERY_CHEAP }, { OPT_LEVELS_2_PLUS, OPT_finline_functions, NULL, 1 }, { OPT_LEVELS_2_PLUS, OPT_ftree_loop_distribute_patterns, NULL, 1 }, @@ -646,6 +647,8 @@ static const struct default_options default_options_table[] = { OPT_LEVELS_2_PLUS_SPEED_ONLY, OPT_foptimize_strlen, NULL, 1 }, { OPT_LEVELS_2_PLUS_SPEED_ONLY, OPT_freorder_blocks_algorithm_, NULL, REORDER_BLOCKS_ALGORITHM_STC }, + { OPT_LEVELS_2_PLUS_SPEED_ONLY, OPT_ftree_loop_vectorize, NULL, 1 }, + { OPT_LEVELS_2_PLUS_SPEED_ONLY, OPT_ftree_slp_vectorize, NULL, 1 }, #ifdef INSN_SCHEDULING /* Only run the pre-regalloc scheduling pass if optimizing for speed. */ { OPT_LEVELS_2_PLUS_SPEED_ONLY, OPT_fschedule_insns, NULL, 1 }, @@ -663,9 +666,7 @@ static const struct default_options default_options_table[] = { OPT_LEVELS_3_PLUS, OPT_fsplit_loops, NULL, 1 }, { OPT_LEVELS_3_PLUS, OPT_fsplit_paths, NULL, 1 }, { OPT_LEVELS_3_PLUS, OPT_ftree_loop_distribution, NULL, 1 }, - { OPT_LEVELS_3_PLUS, OPT_ftree_loop_vectorize, NULL, 1 }, { OPT_LEVELS_3_PLUS, OPT_ftree_partial_pre, NULL, 1 }, - { OPT_LEVELS_3_PLUS, OPT_ftree_slp_vectorize, NULL, 1 }, { OPT_LEVELS_3_PLUS, OPT_funswitch_loops, NULL, 1 }, { OPT_LEVELS_3_PLUS, OPT_fvect_cost_model_, NULL, VECT_COST_MODEL_DYNAMIC }, { OPT_LEVELS_3_PLUS, OPT_fversion_loops_for_strides, NULL, 1 }, @@ -1343,6 +1344,15 @@ finish_options (struct gcc_options *opts, struct gcc_options *opts_set, opts->x_flag_complex_method = 1; else if (opts_set->x_flag_cx_fortran_rules) opts->x_flag_complex_method = opts->x_flag_default_complex_method; + + /* Use -fvect-cost-model=cheap instead of -fvect-cost-mode=very-cheap + by default with explicit -ftree-{loop,slp}-vectorize. */ + if (opts->x_optimize == 2 + && (opts_set->x_flag_tree_loop_vectorize + || opts_set->x_flag_tree_vectorize)) + SET_OPTION_IF_UNSET (opts, opts_set, flag_vect_cost_model, + VECT_COST_MODEL_CHEAP); + } #define LEFT_COLUMN 27 |