gcc/common/config/cris/cris-common.c

   1 /* Common hooks for CRIS.
   2    Copyright (C) 1998-2016 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 "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 /* Implement TARGET_OPTION_OPTIMIZATION_TABLE.  */
  30
  31 static const struct default_options cris_option_optimization_table[] =
  32   {
  33     { OPT_LEVELS_2_PLUS, OPT_fomit_frame_pointer, NULL, 1 },
  34     { OPT_LEVELS_NONE, 0, NULL, 0 }
  35   };
  36
  37 /* TARGET_HANDLE_OPTION worker.  We just store the values into local
  38    variables here.  Checks for correct semantics are in
  39    cris_option_override.  */
  40
  41 static bool
  42 cris_handle_option (struct gcc_options *opts,
  43                     struct gcc_options *opts_set ATTRIBUTE_UNUSED,
  44                     const struct cl_decoded_option *decoded,
  45                     location_t loc ATTRIBUTE_UNUSED)
  46 {
  47   size_t code = decoded->opt_index;
  48
  49   switch (code)
  50     {
  51     case OPT_metrax100:
  52       opts->x_target_flags
  53         |= (MASK_SVINTO
  54             + MASK_ETRAX4_ADD
  55             + MASK_ALIGN_BY_32);
  56       break;
  57
  58     case OPT_mno_etrax100:
  59       opts->x_target_flags
  60         &= ~(MASK_SVINTO
  61              + MASK_ETRAX4_ADD
  62              + MASK_ALIGN_BY_32);
  63       break;
  64
  65     case OPT_m32_bit:
  66     case OPT_m32bit:
  67       opts->x_target_flags
  68         |= (MASK_STACK_ALIGN
  69             + MASK_CONST_ALIGN
  70             + MASK_DATA_ALIGN
  71             + MASK_ALIGN_BY_32);
  72       break;
  73
  74     case OPT_m16_bit:
  75     case OPT_m16bit:
  76       opts->x_target_flags
  77         |= (MASK_STACK_ALIGN
  78             + MASK_CONST_ALIGN
  79             + MASK_DATA_ALIGN);
  80       break;
  81
  82     case OPT_m8_bit:
  83     case OPT_m8bit:
  84       opts->x_target_flags
  85         &= ~(MASK_STACK_ALIGN
  86              + MASK_CONST_ALIGN
  87              + MASK_DATA_ALIGN);
  88       break;
  89
  90     default:
  91       break;
  92     }
  93
  94   return true;
  95 }
  96
  97 #undef TARGET_DEFAULT_TARGET_FLAGS
  98 #define TARGET_DEFAULT_TARGET_FLAGS (TARGET_DEFAULT | CRIS_SUBTARGET_DEFAULT)
  99 #undef TARGET_HANDLE_OPTION
 100 #define TARGET_HANDLE_OPTION cris_handle_option
 101 #undef TARGET_OPTION_OPTIMIZATION_TABLE
 102 #define TARGET_OPTION_OPTIMIZATION_TABLE cris_option_optimization_table
 103
 104 struct gcc_targetm_common targetm_common = TARGETM_COMMON_INITIALIZER;