gcc/common/config/c6x/c6x-common.c

   1 /* TI C6X common hooks.
   2    Copyright (C) 2011-2022 Free Software Foundation, Inc.
   3
   4 This file is part of GCC.
   5
   6 GCC is free software; you can redistribute it and/or modify
   7 it under the terms of the GNU General Public License as published by
   8 the Free Software Foundation; either version 3, or (at your option)
   9 any later version.
  10
  11 GCC is distributed in the hope that it will be useful,
  12 but WITHOUT ANY WARRANTY; without even the implied warranty of
  13 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  14 GNU General Public License for more details.
  15
  16 You should have received a copy of the GNU General Public License
  17 along with GCC; see the file COPYING3.  If not see
  18 <http://www.gnu.org/licenses/>.  */
  19
  20 #include "config.h"
  21 #include "system.h"
  22 #include "coretypes.h"
  23 #include "diagnostic-core.h"
  24 #include "tm.h"
  25 #include "memmodel.h"
  26 #include "tm_p.h"
  27 #include "common/common-target.h"
  28 #include "common/common-target-def.h"
  29 #include "opts.h"
  30 #include "flags.h"
  31
  32 /* Implement overriding of the optimization options.  */
  33 static const struct default_options c6x_option_optimization_table[] =
  34   {
  35     { OPT_LEVELS_1_PLUS, OPT_frename_registers, NULL, 1 },
  36     { OPT_LEVELS_2_PLUS, OPT_fmodulo_sched, NULL, 1 },
  37     { OPT_LEVELS_ALL, OPT_freciprocal_math, NULL, 1 },
  38     { OPT_LEVELS_NONE, 0, NULL, 0 }
  39   };
  40
  41 /* Implement TARGET_EXCEPT_UNWIND_INFO.  */
  42
  43 static enum unwind_info_type
  44 c6x_except_unwind_info (struct gcc_options *opts ATTRIBUTE_UNUSED)
  45 {
  46   /* Honor the --enable-sjlj-exceptions configure switch.  */
  47 #ifdef CONFIG_SJLJ_EXCEPTIONS
  48   if (CONFIG_SJLJ_EXCEPTIONS)
  49     return UI_SJLJ;
  50 #endif
  51
  52   return UI_TARGET;
  53 }
  54
  55 #undef TARGET_DEFAULT_TARGET_FLAGS
  56 #define TARGET_DEFAULT_TARGET_FLAGS TARGET_DEFAULT
  57
  58 #undef TARGET_OPTION_OPTIMIZATION_TABLE
  59 #define TARGET_OPTION_OPTIMIZATION_TABLE c6x_option_optimization_table
  60
  61 #undef TARGET_EXCEPT_UNWIND_INFO
  62 #define TARGET_EXCEPT_UNWIND_INFO  c6x_except_unwind_info
  63
  64 struct gcc_targetm_common targetm_common = TARGETM_COMMON_INITIALIZER;