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218e3e4e | 1 | /* Common hooks for IA64. |
f1717362 | 2 | Copyright (C) 1999-2016 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 "tm_p.h" | |
26 | #include "common/common-target.h" | |
27 | #include "common/common-target-def.h" | |
28 | #include "opts.h" | |
29 | #include "flags.h" | |
6a2fc14e | 30 | #include "params.h" |
218e3e4e | 31 | |
32 | /* Implement overriding of the optimization options. */ | |
33 | static const struct default_options ia64_option_optimization_table[] = | |
34 | { | |
35 | { OPT_LEVELS_1_PLUS, OPT_fomit_frame_pointer, NULL, 1 }, | |
36 | #ifdef SUBTARGET_OPTIMIZATION_OPTIONS | |
37 | SUBTARGET_OPTIMIZATION_OPTIONS, | |
38 | #endif | |
39 | { OPT_LEVELS_NONE, 0, NULL, 0 } | |
40 | }; | |
41 | ||
42 | /* Implement TARGET_HANDLE_OPTION. */ | |
43 | ||
44 | static bool | |
45 | ia64_handle_option (struct gcc_options *opts ATTRIBUTE_UNUSED, | |
46 | struct gcc_options *opts_set ATTRIBUTE_UNUSED, | |
47 | const struct cl_decoded_option *decoded, | |
48 | location_t loc) | |
49 | { | |
50 | size_t code = decoded->opt_index; | |
51 | const char *arg = decoded->arg; | |
52 | int value = decoded->value; | |
53 | ||
54 | switch (code) | |
55 | { | |
56 | case OPT_mtls_size_: | |
57 | if (value != 14 && value != 22 && value != 64) | |
58 | error_at (loc, "bad value %<%s%> for -mtls-size= switch", arg); | |
59 | return true; | |
60 | ||
61 | default: | |
62 | return true; | |
63 | } | |
64 | } | |
65 | ||
66 | /* Implement TARGET_EXCEPT_UNWIND_INFO. */ | |
67 | ||
68 | enum unwind_info_type | |
69 | ia64_except_unwind_info (struct gcc_options *opts) | |
70 | { | |
71 | /* Honor the --enable-sjlj-exceptions configure switch. */ | |
bfde030e | 72 | #ifdef CONFIG_SJLJ_EXCEPTIONS |
73 | if (CONFIG_SJLJ_EXCEPTIONS) | |
218e3e4e | 74 | return UI_SJLJ; |
75 | #endif | |
76 | ||
77 | /* For simplicity elsewhere in this file, indicate that all unwind | |
78 | info is disabled if we're not emitting unwind tables. */ | |
79 | if (!opts->x_flag_exceptions && !opts->x_flag_unwind_tables) | |
80 | return UI_NONE; | |
81 | ||
82 | return UI_TARGET; | |
83 | } | |
84 | ||
6a2fc14e | 85 | /* Implement TARGET_OPTION_DEFAULT_PARAMS. */ |
86 | ||
87 | static void | |
88 | ia64_option_default_params (void) | |
89 | { | |
90 | /* Let the scheduler form additional regions. */ | |
91 | set_default_param_value (PARAM_MAX_SCHED_EXTEND_REGIONS_ITERS, 2); | |
92 | ||
93 | /* Set the default values for cache-related parameters. */ | |
94 | set_default_param_value (PARAM_SIMULTANEOUS_PREFETCHES, 6); | |
95 | set_default_param_value (PARAM_L1_CACHE_LINE_SIZE, 32); | |
96 | ||
97 | set_default_param_value (PARAM_SCHED_MEM_TRUE_DEP_COST, 4); | |
98 | } | |
99 | ||
218e3e4e | 100 | #undef TARGET_OPTION_OPTIMIZATION_TABLE |
101 | #define TARGET_OPTION_OPTIMIZATION_TABLE ia64_option_optimization_table | |
6a2fc14e | 102 | #undef TARGET_OPTION_DEFAULT_PARAMS |
103 | #define TARGET_OPTION_DEFAULT_PARAMS ia64_option_default_params | |
218e3e4e | 104 | |
105 | #undef TARGET_EXCEPT_UNWIND_INFO | |
106 | #define TARGET_EXCEPT_UNWIND_INFO ia64_except_unwind_info | |
107 | ||
108 | #undef TARGET_DEFAULT_TARGET_FLAGS | |
109 | #define TARGET_DEFAULT_TARGET_FLAGS (TARGET_DEFAULT | TARGET_CPU_DEFAULT) | |
110 | #undef TARGET_HANDLE_OPTION | |
111 | #define TARGET_HANDLE_OPTION ia64_handle_option | |
112 | ||
113 | struct gcc_targetm_common targetm_common = TARGETM_COMMON_INITIALIZER; |