diff options
Diffstat (limited to 'gcc')
| -rw-r--r-- | gcc/ChangeLog | 5 | ||||
| -rw-r--r-- | gcc/doc/invoke.texi | 4 | ||||
| -rw-r--r-- | gcc/opts.c | 2 |
3 files changed, 8 insertions, 3 deletions
diff --git a/gcc/ChangeLog b/gcc/ChangeLog index 4be2b96..99ba387 100644 --- a/gcc/ChangeLog +++ b/gcc/ChangeLog @@ -1,5 +1,10 @@ 2019-12-11 Jakub Jelinek <jakub@redhat.com> + * opts.c (default_options_table): Move -ftree-loop-distribute-patterns + entry from -O3 or later section to -O2 or later section. + * doc/invoke.texi (-ftree-loop-distribute-patterns): Mention the + option is enabled by default at -O2+ rather than just at -O3. + PR target/92723 * tree-vect-patterns.c (vect_recog_rotate_pattern): If dt is not vect_internal_def, use oprnd1 as is, without trying to cast it. diff --git a/gcc/doc/invoke.texi b/gcc/doc/invoke.texi index 236bed9..157dc90 100644 --- a/gcc/doc/invoke.texi +++ b/gcc/doc/invoke.texi @@ -9782,8 +9782,8 @@ It is also enabled by @option{-fprofile-use} and @option{-fauto-profile}. @item -ftree-loop-distribute-patterns @opindex ftree-loop-distribute-patterns Perform loop distribution of patterns that can be code generated with -calls to a library. This flag is enabled by default at @option{-O3}, and -by @option{-fprofile-use} and @option{-fauto-profile}. +calls to a library. This flag is enabled by default at @option{-O2} and +higher, and by @option{-fprofile-use} and @option{-fauto-profile}. This pass distributes the initialization loops and generates a call to memset zero. For example, the loop @@ -508,6 +508,7 @@ static const struct default_options default_options_table[] = { 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_finline_functions, NULL, 1 }, + { OPT_LEVELS_2_PLUS, OPT_ftree_loop_distribute_patterns, NULL, 1 }, /* -O2 and above optimizations, but not -Os or -Og. */ { OPT_LEVELS_2_PLUS_SPEED_ONLY, OPT_falign_functions, NULL, 1 }, @@ -533,7 +534,6 @@ static const struct default_options default_options_table[] = { OPT_LEVELS_3_PLUS, OPT_fpredictive_commoning, NULL, 1 }, { OPT_LEVELS_3_PLUS, OPT_fsplit_loops, NULL, 1 }, { OPT_LEVELS_3_PLUS, OPT_fsplit_paths, NULL, 1 }, - { OPT_LEVELS_2_PLUS, OPT_ftree_loop_distribute_patterns, 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 }, |