gcc/common/common-target.h

   1 /* Data structure definitions for common hooks.
   2    Copyright (C) 2010-2017 Free Software Foundation, Inc.
   3
   4    This program is free software; you can redistribute it and/or modify it
   5    under the terms of the GNU General Public License as published by the
   6    Free Software Foundation; either version 3, or (at your option) any
   7    later version.
   8
   9    This program is distributed in the hope that it will be useful,
  10    but WITHOUT ANY WARRANTY; without even the implied warranty of
  11    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  12    GNU General Public License for more details.
  13
  14    You should have received a copy of the GNU General Public License
  15    along with this program; see the file COPYING3.  If not see
  16    <http://www.gnu.org/licenses/>.
  17
  18    In other words, you are welcome to use, share and improve this program.
  19    You are forbidden to forbid anyone else to use, share and improve
  20    what you give them.   Help stamp out software-hoarding!  */
  21
  22 #ifndef GCC_COMMON_TARGET_H
  23 #define GCC_COMMON_TARGET_H
  24
  25
  26 /* Sets of optimization levels at which an option may be enabled by
  27    default_options_optimization.  */
  28 enum opt_levels
  29 {
  30   OPT_LEVELS_NONE, /* No levels (mark end of array).  */
  31   OPT_LEVELS_ALL, /* All levels (used by targets to disable options
  32                      enabled in target-independent code).  */
  33   OPT_LEVELS_0_ONLY, /* -O0 only.  */
  34   OPT_LEVELS_1_PLUS, /* -O1 and above, including -Os and -Og.  */
  35   OPT_LEVELS_1_PLUS_SPEED_ONLY, /* -O1 and above, but not -Os or -Og.  */
  36   OPT_LEVELS_1_PLUS_NOT_DEBUG, /* -O1 and above, but not -Og.  */
  37   OPT_LEVELS_2_PLUS, /* -O2 and above, including -Os.  */
  38   OPT_LEVELS_2_PLUS_SPEED_ONLY, /* -O2 and above, but not -Os or -Og.  */
  39   OPT_LEVELS_3_PLUS, /* -O3 and above.  */
  40   OPT_LEVELS_3_PLUS_AND_SIZE, /* -O3 and above and -Os.  */
  41   OPT_LEVELS_SIZE, /* -Os only.  */
  42   OPT_LEVELS_FAST /* -Ofast only.  */
  43 };
  44
  45 /* Description of options to enable by default at given levels.  */
  46 struct default_options
  47 {
  48   /* The levels at which to enable the option.  */
  49   enum opt_levels levels;
  50
  51   /* The option index and argument or enabled/disabled sense of the
  52      option, as passed to handle_generated_option.  If ARG is NULL and
  53      the option allows a negative form, the option is considered to be
  54      passed in negative form when the optimization level is not one of
  55      those in LEVELS (in order to handle changes to the optimization
  56      level with the "optimize" attribute).  */
  57   size_t opt_index;
  58   const char *arg;
  59   int value;
  60 };
  61
  62 #define DEFHOOKPOD(NAME, DOC, TYPE, INIT) TYPE NAME;
  63 #define DEFHOOK(NAME, DOC, TYPE, PARAMS, INIT) TYPE (* NAME) PARAMS;
  64 #define DEFHOOK_UNDOC DEFHOOK
  65 #define HOOKSTRUCT(FRAGMENT) FRAGMENT
  66
  67 #include "common-target.def"
  68
  69 extern struct gcc_targetm_common targetm_common;
  70
  71 #endif /* GCC_C_TARGET_H */