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677f3fa8 JM |
1 | /* Common hooks for DEC Alpha. |
2 | Copyright (C) 1992, 1993, 1994, 1995, 1996, 1997, 1998, 1999, 2000, 2001, | |
3 | 2002, 2003, 2004, 2005, 2006, 2007, 2008, 2009, 2010, 2011 | |
4 | Free Software Foundation, Inc. | |
5 | ||
6 | This file is part of GCC. | |
7 | ||
8 | GCC is free software; you can redistribute it and/or modify | |
9 | it under the terms of the GNU General Public License as published by | |
10 | the Free Software Foundation; either version 3, or (at your option) | |
11 | any later version. | |
12 | ||
13 | GCC is distributed in the hope that it will be useful, | |
14 | but WITHOUT ANY WARRANTY; without even the implied warranty of | |
15 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
16 | GNU General Public License for more details. | |
17 | ||
18 | You should have received a copy of the GNU General Public License | |
19 | along with GCC; see the file COPYING3. If not see | |
20 | <http://www.gnu.org/licenses/>. */ | |
21 | ||
22 | #include "config.h" | |
23 | #include "system.h" | |
24 | #include "coretypes.h" | |
25 | #include "diagnostic-core.h" | |
26 | #include "tm.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 TARGET_OPTION_OPTIMIZATION_TABLE. */ | |
33 | static const struct default_options alpha_option_optimization_table[] = | |
34 | { | |
35 | { OPT_LEVELS_1_PLUS, OPT_fomit_frame_pointer, NULL, 1 }, | |
36 | { OPT_LEVELS_NONE, 0, NULL, 0 } | |
37 | }; | |
38 | ||
f7a57cdc TG |
39 | /* Implement TARGET_OPTION_INIT_STRUCT. */ |
40 | ||
41 | static void | |
42 | alpha_option_init_struct (struct gcc_options *opts ATTRIBUTE_UNUSED) | |
43 | { | |
44 | #if TARGET_ABI_OPEN_VMS | |
45 | /* Enable section anchors by default. */ | |
46 | opts->x_flag_section_anchors = 1; | |
47 | #endif | |
48 | } | |
49 | ||
677f3fa8 JM |
50 | /* Implement TARGET_HANDLE_OPTION. */ |
51 | ||
52 | static bool | |
53 | alpha_handle_option (struct gcc_options *opts, | |
54 | struct gcc_options *opts_set ATTRIBUTE_UNUSED, | |
55 | const struct cl_decoded_option *decoded, | |
56 | location_t loc) | |
57 | { | |
58 | size_t code = decoded->opt_index; | |
59 | const char *arg = decoded->arg; | |
60 | int value = decoded->value; | |
61 | ||
62 | switch (code) | |
63 | { | |
64 | case OPT_mfp_regs: | |
65 | if (value == 0) | |
66 | opts->x_target_flags |= MASK_SOFT_FP; | |
67 | break; | |
68 | ||
69 | case OPT_mieee: | |
70 | case OPT_mieee_with_inexact: | |
71 | opts->x_target_flags |= MASK_IEEE_CONFORMANT; | |
72 | break; | |
73 | ||
74 | case OPT_mtls_size_: | |
75 | if (value != 16 && value != 32 && value != 64) | |
76 | error_at (loc, "bad value %qs for -mtls-size switch", arg); | |
77 | break; | |
78 | } | |
79 | ||
80 | return true; | |
81 | } | |
82 | ||
83 | #undef TARGET_DEFAULT_TARGET_FLAGS | |
84 | #define TARGET_DEFAULT_TARGET_FLAGS \ | |
85 | (TARGET_DEFAULT | TARGET_CPU_DEFAULT | TARGET_DEFAULT_EXPLICIT_RELOCS) | |
86 | #undef TARGET_HANDLE_OPTION | |
87 | #define TARGET_HANDLE_OPTION alpha_handle_option | |
88 | ||
f7a57cdc TG |
89 | #undef TARGET_OPTION_INIT_STRUCT |
90 | #define TARGET_OPTION_INIT_STRUCT alpha_option_init_struct | |
91 | ||
677f3fa8 JM |
92 | #undef TARGET_OPTION_OPTIMIZATION_TABLE |
93 | #define TARGET_OPTION_OPTIMIZATION_TABLE alpha_option_optimization_table | |
94 | ||
95 | struct gcc_targetm_common targetm_common = TARGETM_COMMON_INITIALIZER; |