gcc/common/config/mep/mep-common.c

   1 /* Common hooks for Toshiba Media Processor.
   2    Copyright (C) 2001-2013 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 it under
   7 the terms of the GNU General Public License as published by the Free
   8 Software Foundation; either version 3, or (at your option) any later
   9 version.
  10
  11 GCC is distributed in the hope that it will be useful, but WITHOUT ANY
  12 WARRANTY; without even the implied warranty of MERCHANTABILITY or
  13 FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
  14 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 "tm.h"
  24 #include "common/common-target.h"
  25 #include "common/common-target-def.h"
  26 #include "opts.h"
  27 #include "flags.h"
  28
  29 static const struct default_options mep_option_optimization_table[] =
  30   {
  31     /* The first scheduling pass often increases register pressure and
  32        tends to result in more spill code.  Only run it when
  33        specifically asked.  */
  34     { OPT_LEVELS_ALL, OPT_fschedule_insns, NULL, 0 },
  35
  36     /* Using $fp doesn't gain us much, even when debugging is
  37        important.  */
  38     { OPT_LEVELS_ALL, OPT_fomit_frame_pointer, NULL, 1 },
  39
  40     { OPT_LEVELS_NONE, 0, NULL, 0 }
  41   };
  42
  43 static bool
  44 mep_handle_option (struct gcc_options *opts,
  45                    struct gcc_options *opts_set ATTRIBUTE_UNUSED,
  46                    const struct cl_decoded_option *decoded,
  47                    location_t loc ATTRIBUTE_UNUSED)
  48 {
  49   size_t code = decoded->opt_index;
  50
  51   switch (code)
  52     {
  53     case OPT_mall_opts:
  54       opts->x_target_flags |= MEP_ALL_OPTS;
  55       break;
  56
  57     case OPT_mno_opts:
  58       opts->x_target_flags &= ~ MEP_ALL_OPTS;
  59       break;
  60
  61     case OPT_mcop64:
  62       opts->x_target_flags |= MASK_COP;
  63       opts->x_target_flags |= MASK_64BIT_CR_REGS;
  64       break;
  65
  66     case OPT_mivc2:
  67       opts->x_target_flags |= MASK_COP;
  68       opts->x_target_flags |= MASK_64BIT_CR_REGS;
  69       opts->x_target_flags |= MASK_VLIW;
  70       opts->x_target_flags |= MASK_OPT_VL64;
  71       opts->x_target_flags |= MASK_IVC2;
  72
  73       /* Remaining handling of this option deferred.  */
  74       break;
  75
  76     default:
  77       break;
  78     }
  79   return TRUE;
  80 }
  81
  82 #undef  TARGET_HANDLE_OPTION
  83 #define TARGET_HANDLE_OPTION            mep_handle_option
  84 #undef  TARGET_OPTION_OPTIMIZATION_TABLE
  85 #define TARGET_OPTION_OPTIMIZATION_TABLE        mep_option_optimization_table
  86 #undef  TARGET_DEFAULT_TARGET_FLAGS
  87 #define TARGET_DEFAULT_TARGET_FLAGS     TARGET_DEFAULT
  88
  89 struct gcc_targetm_common targetm_common = TARGETM_COMMON_INITIALIZER;