mn10300-common.c revision 1.4 
1/* Common hooks for Matsushita MN10300 series.
2   Copyright (C) 1996-2016 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.  */
30static const struct default_options mn10300_option_optimization_table[] =
31  {
32    { OPT_LEVELS_1_PLUS, OPT_fomit_frame_pointer, NULL, 1 },
33    /* The STC algorithm produces the smallest code at -Os.  */
34    { OPT_LEVELS_2_PLUS, OPT_freorder_blocks_algorithm_, NULL,
35      REORDER_BLOCKS_ALGORITHM_STC },
36    { OPT_LEVELS_NONE, 0, NULL, 0 }
37  };
38
39/* Implement TARGET_HANDLE_OPTION.  */
40
41static bool
42mn10300_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  int value = decoded->value;
49
50  switch (code)
51    {
52    case OPT_mam33:
53      opts->x_mn10300_processor = value ? PROCESSOR_AM33 : PROCESSOR_MN10300;
54      return true;
55
56    case OPT_mam33_2:
57      opts->x_mn10300_processor = (value
58				   ? PROCESSOR_AM33_2
59				   : MIN (PROCESSOR_AM33, PROCESSOR_DEFAULT));
60      return true;
61
62    case OPT_mam34:
63      opts->x_mn10300_processor = (value ? PROCESSOR_AM34 : PROCESSOR_DEFAULT);
64      return true;
65
66    default:
67      return true;
68    }
69}
70
71#undef  TARGET_EXCEPT_UNWIND_INFO
72#define TARGET_EXCEPT_UNWIND_INFO sjlj_except_unwind_info
73
74#undef  TARGET_DEFAULT_TARGET_FLAGS
75#define TARGET_DEFAULT_TARGET_FLAGS MASK_MULT_BUG | MASK_PTR_A0D0 | MASK_ALLOW_LIW | MASK_ALLOW_SETLB
76#undef  TARGET_HANDLE_OPTION
77#define TARGET_HANDLE_OPTION mn10300_handle_option
78#undef  TARGET_OPTION_OPTIMIZATION_TABLE
79#define TARGET_OPTION_OPTIMIZATION_TABLE mn10300_option_optimization_table
80
81struct gcc_targetm_common targetm_common = TARGETM_COMMON_INITIALIZER;
82