From afb4cc68530e7f07ae580639910ea9197daf7b88 Mon Sep 17 00:00:00 2001 From: Jakub Jelinek Date: Thu, 12 Dec 2019 00:59:14 +0100 Subject: [PATCH] opts.c (default_options_table): Move -ftree-loop-distribute-patterns entry from -O3 or later section to -O2 or... * 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. From-SVN: r279267 --- gcc/ChangeLog | 5 +++++ gcc/doc/invoke.texi | 4 ++-- gcc/opts.c | 2 +- 3 files changed, 8 insertions(+), 3 deletions(-) diff --git a/gcc/ChangeLog b/gcc/ChangeLog index 4be2b9681c8..99ba387f28c 100644 --- a/gcc/ChangeLog +++ b/gcc/ChangeLog @@ -1,5 +1,10 @@ 2019-12-11 Jakub Jelinek + * 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 236bed92724..157dc907eec 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 diff --git a/gcc/opts.c b/gcc/opts.c index 3ddad551e6f..df6cc6495db 100644 --- a/gcc/opts.c +++ b/gcc/opts.c @@ -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 }, -- 2.30.2