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218e3e4e | 1 | /* Common hooks for DEC Alpha. |
fbd26352 | 2 | Copyright (C) 1992-2019 Free Software Foundation, Inc. |
218e3e4e | 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 "common/common-target.h" | |
26 | #include "common/common-target-def.h" | |
27 | #include "opts.h" | |
28 | #include "flags.h" | |
29 | ||
30 | /* Implement TARGET_OPTION_OPTIMIZATION_TABLE. */ | |
31 | static const struct default_options alpha_option_optimization_table[] = | |
32 | { | |
79202d0a | 33 | /* Enable redundant extension instructions removal at -O2 and higher. */ |
34 | { OPT_LEVELS_2_PLUS, OPT_free, NULL, 1 }, | |
218e3e4e | 35 | { OPT_LEVELS_NONE, 0, NULL, 0 } |
36 | }; | |
37 | ||
c2ec39b5 | 38 | /* Implement TARGET_OPTION_INIT_STRUCT. */ |
39 | ||
40 | static void | |
41 | alpha_option_init_struct (struct gcc_options *opts ATTRIBUTE_UNUSED) | |
42 | { | |
43 | #if TARGET_ABI_OPEN_VMS | |
44 | /* Enable section anchors by default. */ | |
45 | opts->x_flag_section_anchors = 1; | |
46 | #endif | |
47 | } | |
48 | ||
218e3e4e | 49 | /* Implement TARGET_HANDLE_OPTION. */ |
50 | ||
51 | static bool | |
52 | alpha_handle_option (struct gcc_options *opts, | |
53 | struct gcc_options *opts_set ATTRIBUTE_UNUSED, | |
54 | const struct cl_decoded_option *decoded, | |
55 | location_t loc) | |
56 | { | |
57 | size_t code = decoded->opt_index; | |
58 | const char *arg = decoded->arg; | |
59 | int value = decoded->value; | |
60 | ||
61 | switch (code) | |
62 | { | |
63 | case OPT_mfp_regs: | |
64 | if (value == 0) | |
65 | opts->x_target_flags |= MASK_SOFT_FP; | |
66 | break; | |
67 | ||
68 | case OPT_mieee: | |
69 | case OPT_mieee_with_inexact: | |
70 | opts->x_target_flags |= MASK_IEEE_CONFORMANT; | |
71 | break; | |
72 | ||
73 | case OPT_mtls_size_: | |
74 | if (value != 16 && value != 32 && value != 64) | |
2f6d557f | 75 | error_at (loc, "bad value %qs for %<-mtls-size%> switch", arg); |
218e3e4e | 76 | break; |
77 | } | |
78 | ||
79 | return true; | |
80 | } | |
81 | ||
82 | #undef TARGET_DEFAULT_TARGET_FLAGS | |
83 | #define TARGET_DEFAULT_TARGET_FLAGS \ | |
84 | (TARGET_DEFAULT | TARGET_CPU_DEFAULT | TARGET_DEFAULT_EXPLICIT_RELOCS) | |
85 | #undef TARGET_HANDLE_OPTION | |
86 | #define TARGET_HANDLE_OPTION alpha_handle_option | |
87 | ||
c2ec39b5 | 88 | #undef TARGET_OPTION_INIT_STRUCT |
89 | #define TARGET_OPTION_INIT_STRUCT alpha_option_init_struct | |
90 | ||
218e3e4e | 91 | #undef TARGET_OPTION_OPTIMIZATION_TABLE |
92 | #define TARGET_OPTION_OPTIMIZATION_TABLE alpha_option_optimization_table | |
93 | ||
94 | struct gcc_targetm_common targetm_common = TARGETM_COMMON_INITIALIZER; |