Backport from mainline:

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

diff --git a/gcc/common/common-target.h b/gcc/common/common-target.h
index 615ac08..cd2d47c 100644 (file)
--- a/gcc/common/common-target.h
+++ b/gcc/common/common-target.h
@@ -1,5 +1,5 @@
 /* Data structure definitions for common hooks.
-   Copyright (C) 2011
+   Copyright (C) 2010, 2011
    Free Software Foundation, Inc.
 
    This program is free software; you can redistribute it and/or modify it
@@ -23,6 +23,43 @@
 #ifndef GCC_COMMON_TARGET_H
 #define GCC_COMMON_TARGET_H
 
+#include "input.h"
+
+/* 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;
+};
+
 #define DEFHOOKPOD(NAME, DOC, TYPE, INIT) TYPE NAME;
 #define DEFHOOK(NAME, DOC, TYPE, PARAMS, INIT) TYPE (* NAME) PARAMS;
 #define DEFHOOK_UNDOC DEFHOOK