1 /* TI C6X common hooks.
2 Copyright (C) 2011-2020 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
c6x_except_unwind_info(struct gcc_options * opts ATTRIBUTE_UNUSED)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;
65