diff options
Diffstat (limited to 'gcc/target.h')
| -rw-r--r-- | gcc/target.h | 35 |
1 files changed, 35 insertions, 0 deletions
diff --git a/gcc/target.h b/gcc/target.h index 99dd1eea998..f93699ffb1b 100644 --- a/gcc/target.h +++ b/gcc/target.h @@ -128,6 +128,41 @@ enum vect_cost_for_stmt vec_perm }; +/* Sets of optimization levels at which an option may be enabled by + default_options_optimization. */ +enum opt_levels +{ + OPT_LEVELS_NONE, /* No levels (mark end of array). */ + OPT_LEVELS_ALL, /* All levels (used by targets to disable options + enabled in target-independent code). */ + OPT_LEVELS_0_ONLY, /* -O0 only. */ + OPT_LEVELS_1_PLUS, /* -O1 and above, including -Os. */ + OPT_LEVELS_1_PLUS_SPEED_ONLY, /* -O1 and above, but not -Os. */ + OPT_LEVELS_2_PLUS, /* -O2 and above, including -Os. */ + OPT_LEVELS_2_PLUS_SPEED_ONLY, /* -O2 and above, but not -Os. */ + OPT_LEVELS_3_PLUS, /* -O3 and above. */ + OPT_LEVELS_3_PLUS_AND_SIZE, /* -O3 and above and -Os. */ + OPT_LEVELS_SIZE, /* -Os only. */ + OPT_LEVELS_FAST /* -Ofast only. */ +}; + +/* Description of options to enable by default at given levels. */ +struct default_options +{ + /* The levels at which to enable the option. */ + enum opt_levels levels; + + /* The option index and argument or enabled/disabled sense of the + option, as passed to handle_generated_option. If ARG is NULL and + the option allows a negative form, the option is considered to be + passed in negative form when the optimization level is not one of + those in LEVELS (in order to handle changes to the optimization + level with the "optimize" attribute). */ + size_t opt_index; + const char *arg; + int value; +}; + /* The target structure. This holds all the backend hooks. */ #define DEFHOOKPOD(NAME, DOC, TYPE, INIT) TYPE NAME; #define DEFHOOK(NAME, DOC, TYPE, PARAMS, INIT) TYPE (* NAME) PARAMS; |