* Makefile.in (GCC_OBJS): Remove opts-common.o and options.o.

[pf3gnuchains/gcc-fork.git] / gcc / target.h

diff --git a/gcc/target.h b/gcc/target.h
index f160e97..eae0b76 100644 (file)
--- a/gcc/target.h
+++ b/gcc/target.h
@@ -100,6 +100,9 @@ struct ddg;
 /* This is defined in cfgloop.h .  */
 struct loop;
 
+/* This is defined in tree-ssa-alias.h.  */
+struct ao_ref_s;
+
 /* Assembler instructions for creating various kinds of integer object.  */
 
 struct asm_int_op
@@ -128,14 +131,39 @@ enum vect_cost_for_stmt
   vec_perm
 };
 
-/* Types of unwind/exception handling info that can be generated.  */
+/* 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.  */
+};
 
-enum unwind_info_type
+/* Description of options to enable by default at given levels.  */
+struct default_options
 {
-  UI_NONE,
-  UI_SJLJ,
-  UI_DWARF2,
-  UI_TARGET
+  /* 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.  */
@@ -148,7 +176,4 @@ enum unwind_info_type
 
 extern struct gcc_target targetm;
 
-/* Each target can provide their own.  */
-extern struct gcc_targetcm targetcm;
-
 #endif /* GCC_TARGET_H */