]>
Commit | Line | Data |
---|---|---|
677f3fa8 | 1 | /* Common hooks for NEC V850 series. |
cbe34bb5 | 2 | Copyright (C) 1996-2017 Free Software Foundation, Inc. |
677f3fa8 JM |
3 | |
4 | This file is part of GCC. | |
5 | ||
6 | GCC is free software; you can redistribute it and/or modify it | |
7 | 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, but WITHOUT | |
12 | ANY 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 "diagnostic-core.h" | |
24 | #include "tm.h" | |
25 | #include "common/common-target.h" | |
26 | #include "common/common-target-def.h" | |
27 | #include "opts.h" | |
28 | #include "flags.h" | |
29 | ||
30 | /* Information about the various small memory areas. */ | |
31 | static const int small_memory_physical_max[(int) SMALL_MEMORY_max] = | |
32 | { | |
33 | 256, | |
34 | 65536, | |
35 | 32768, | |
36 | }; | |
37 | ||
38 | /* Set the maximum size of small memory area TYPE to the value given | |
39 | by SIZE in structure OPTS (option text OPT passed at location LOC). */ | |
40 | ||
41 | static void | |
42 | v850_handle_memory_option (enum small_memory_type type, | |
43 | struct gcc_options *opts, const char *opt, | |
44 | int size, location_t loc) | |
45 | { | |
46 | if (size > small_memory_physical_max[type]) | |
47 | error_at (loc, "value passed in %qs is too large", opt); | |
48 | else | |
49 | opts->x_small_memory_max[type] = size; | |
50 | } | |
51 | ||
52 | /* Implement TARGET_HANDLE_OPTION. */ | |
53 | ||
54 | static bool | |
55 | v850_handle_option (struct gcc_options *opts, | |
56 | struct gcc_options *opts_set ATTRIBUTE_UNUSED, | |
57 | const struct cl_decoded_option *decoded, | |
58 | location_t loc) | |
59 | { | |
60 | size_t code = decoded->opt_index; | |
61 | int value = decoded->value; | |
62 | ||
63 | switch (code) | |
64 | { | |
65 | case OPT_mspace: | |
66 | opts->x_target_flags |= MASK_EP | MASK_PROLOG_FUNCTION; | |
67 | return true; | |
68 | ||
69 | case OPT_mv850: | |
70 | opts->x_target_flags &= ~(MASK_CPU ^ MASK_V850); | |
71 | return true; | |
72 | ||
73 | case OPT_mv850e: | |
74 | case OPT_mv850e1: | |
75 | case OPT_mv850es: | |
76 | opts->x_target_flags &= ~(MASK_CPU ^ MASK_V850E); | |
77 | return true; | |
78 | ||
79 | case OPT_mv850e2: | |
80 | opts->x_target_flags &= ~(MASK_CPU ^ MASK_V850E2); | |
81 | return true; | |
82 | ||
83 | case OPT_mv850e2v3: | |
84 | opts->x_target_flags &= ~(MASK_CPU ^ MASK_V850E2V3); | |
85 | return true; | |
86 | ||
87 | case OPT_mtda_: | |
88 | v850_handle_memory_option (SMALL_MEMORY_TDA, opts, | |
89 | decoded->orig_option_with_args_text, | |
90 | value, loc); | |
91 | return true; | |
92 | ||
93 | case OPT_msda_: | |
94 | v850_handle_memory_option (SMALL_MEMORY_SDA, opts, | |
95 | decoded->orig_option_with_args_text, | |
96 | value, loc); | |
97 | return true; | |
98 | ||
99 | case OPT_mzda_: | |
100 | v850_handle_memory_option (SMALL_MEMORY_ZDA, opts, | |
101 | decoded->orig_option_with_args_text, | |
102 | value, loc); | |
103 | return true; | |
104 | ||
105 | default: | |
106 | return true; | |
107 | } | |
108 | } | |
109 | ||
110 | /* Implement TARGET_OPTION_OPTIMIZATION_TABLE. */ | |
111 | ||
112 | static const struct default_options v850_option_optimization_table[] = | |
113 | { | |
677f3fa8 JM |
114 | /* Note - we no longer enable MASK_EP when optimizing. This is |
115 | because of a hardware bug which stops the SLD and SST instructions | |
116 | from correctly detecting some hazards. If the user is sure that | |
117 | their hardware is fixed or that their program will not encounter | |
118 | the conditions that trigger the bug then they can enable -mep by | |
119 | hand. */ | |
120 | { OPT_LEVELS_1_PLUS, OPT_mprolog_function, NULL, 1 }, | |
121 | { OPT_LEVELS_NONE, 0, NULL, 0 } | |
122 | }; | |
123 | ||
124 | #undef TARGET_DEFAULT_TARGET_FLAGS | |
125 | #define TARGET_DEFAULT_TARGET_FLAGS (MASK_DEFAULT | MASK_APP_REGS) | |
126 | #undef TARGET_HANDLE_OPTION | |
127 | #define TARGET_HANDLE_OPTION v850_handle_option | |
128 | #undef TARGET_OPTION_OPTIMIZATION_TABLE | |
129 | #define TARGET_OPTION_OPTIMIZATION_TABLE v850_option_optimization_table | |
130 | ||
131 | struct gcc_targetm_common targetm_common = TARGETM_COMMON_INITIALIZER; |