|
111
|
1 /* Common hooks for DEC Alpha.
|
|
131
|
2 Copyright (C) 1992-2018 Free Software Foundation, Inc.
|
|
111
|
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 {
|
|
|
33 /* Enable redundant extension instructions removal at -O2 and higher. */
|
|
|
34 { OPT_LEVELS_2_PLUS, OPT_free, NULL, 1 },
|
|
|
35 { OPT_LEVELS_NONE, 0, NULL, 0 }
|
|
|
36 };
|
|
|
37
|
|
|
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
|
|
|
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)
|
|
|
75 error_at (loc, "bad value %qs for -mtls-size switch", arg);
|
|
|
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
|
|
|
88 #undef TARGET_OPTION_INIT_STRUCT
|
|
|
89 #define TARGET_OPTION_INIT_STRUCT alpha_option_init_struct
|
|
|
90
|
|
|
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;
|
