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

   1 /* Common hooks for CRIS.
   2    Copyright (C) 1998-2019 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 /* TARGET_HANDLE_OPTION worker.  We just store the values into local
  30    variables here.  Checks for correct semantics are in
  31    cris_option_override.  */
  32
  33 static bool
  34 cris_handle_option (struct gcc_options *opts,
  35                     struct gcc_options *opts_set ATTRIBUTE_UNUSED,
  36                     const struct cl_decoded_option *decoded,
  37                     location_t loc ATTRIBUTE_UNUSED)
  38 {
  39   size_t code = decoded->opt_index;
  40
  41   switch (code)
  42     {
  43     case OPT_metrax100:
  44       opts->x_target_flags
  45         |= (MASK_SVINTO
  46             + MASK_ETRAX4_ADD
  47             + MASK_ALIGN_BY_32);
  48       break;
  49
  50     case OPT_mno_etrax100:
  51       opts->x_target_flags
  52         &= ~(MASK_SVINTO
  53              + MASK_ETRAX4_ADD
  54              + MASK_ALIGN_BY_32);
  55       break;
  56
  57     case OPT_m32_bit:
  58     case OPT_m32bit:
  59       opts->x_target_flags
  60         |= (MASK_STACK_ALIGN
  61             + MASK_CONST_ALIGN
  62             + MASK_DATA_ALIGN
  63             + MASK_ALIGN_BY_32);
  64       break;
  65
  66     case OPT_m16_bit:
  67     case OPT_m16bit:
  68       opts->x_target_flags
  69         |= (MASK_STACK_ALIGN
  70             + MASK_CONST_ALIGN
  71             + MASK_DATA_ALIGN);
  72       break;
  73
  74     case OPT_m8_bit:
  75     case OPT_m8bit:
  76       opts->x_target_flags
  77         &= ~(MASK_STACK_ALIGN
  78              + MASK_CONST_ALIGN
  79              + MASK_DATA_ALIGN);
  80       break;
  81
  82     default:
  83       break;
  84     }
  85
  86   return true;
  87 }
  88
  89 #undef TARGET_DEFAULT_TARGET_FLAGS
  90 #define TARGET_DEFAULT_TARGET_FLAGS (TARGET_DEFAULT | CRIS_SUBTARGET_DEFAULT)
  91 #undef TARGET_HANDLE_OPTION
  92 #define TARGET_HANDLE_OPTION cris_handle_option
  93
  94 struct gcc_targetm_common targetm_common = TARGETM_COMMON_INITIALIZER;