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;