Mercurial > hg > CbC > CbC_gcc
comparison gcc/flags.h @ 111:04ced10e8804
gcc 7
author | kono |
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date | Fri, 27 Oct 2017 22:46:09 +0900 |
parents | f6334be47118 |
children | 84e7813d76e9 |
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68:561a7518be6b | 111:04ced10e8804 |
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1 /* Compilation switch flag definitions for GCC. | 1 /* Compilation switch flag definitions for GCC. |
2 Copyright (C) 1987, 1988, 1994, 1995, 1996, 1997, 1998, 1999, 2000, 2002, | 2 Copyright (C) 1987-2017 Free Software Foundation, Inc. |
3 2003, 2004, 2005, 2006, 2007, 2008, 2009, 2010 | |
4 Free Software Foundation, Inc. | |
5 | 3 |
6 This file is part of GCC. | 4 This file is part of GCC. |
7 | 5 |
8 GCC is free software; you can redistribute it and/or modify it under | 6 GCC is free software; you can redistribute it and/or modify it under |
9 the terms of the GNU General Public License as published by the Free | 7 the terms of the GNU General Public License as published by the Free |
20 <http://www.gnu.org/licenses/>. */ | 18 <http://www.gnu.org/licenses/>. */ |
21 | 19 |
22 #ifndef GCC_FLAGS_H | 20 #ifndef GCC_FLAGS_H |
23 #define GCC_FLAGS_H | 21 #define GCC_FLAGS_H |
24 | 22 |
25 #include "coretypes.h" | |
26 #include "flag-types.h" | |
27 #include "options.h" | |
28 | |
29 #if !defined(IN_LIBGCC2) && !defined(IN_TARGET_LIBS) && !defined(IN_RTS) | 23 #if !defined(IN_LIBGCC2) && !defined(IN_TARGET_LIBS) && !defined(IN_RTS) |
30 | 24 |
31 /* Names of debug_info_type, for error messages. */ | 25 /* Names of debug_info_type, for error messages. */ |
32 extern const char *const debug_type_names[]; | 26 extern const char *const debug_type_names[]; |
33 | 27 |
34 extern void strip_off_ending (char *, int); | 28 extern void strip_off_ending (char *, int); |
35 extern int base_of_path (const char *path, const char **base_out); | 29 extern int base_of_path (const char *path, const char **base_out); |
36 | 30 |
37 /* True if this is the LTO front end (lto1). This is used to disable | |
38 gimple generation and lowering passes that are normally run on the | |
39 output of a front end. These passes must be bypassed for lto since | |
40 they have already been done before the gimple was written. */ | |
41 | |
42 extern bool in_lto_p; | |
43 | |
44 /* Return true iff flags are set as if -ffast-math. */ | 31 /* Return true iff flags are set as if -ffast-math. */ |
45 extern bool fast_math_flags_set_p (const struct gcc_options *); | 32 extern bool fast_math_flags_set_p (const struct gcc_options *); |
46 extern bool fast_math_flags_struct_set_p (struct cl_optimization *); | 33 extern bool fast_math_flags_struct_set_p (struct cl_optimization *); |
47 | 34 |
48 /* Used to set the level of -Wstrict-aliasing in OPTS, when no level | |
49 is specified. The external way to set the default level is to use | |
50 -Wstrict-aliasing=level. | |
51 ONOFF is assumed to take value 1 when -Wstrict-aliasing is specified, | |
52 and 0 otherwise. After calling this function, wstrict_aliasing will be | |
53 set to the default value of -Wstrict_aliasing=level. */ | |
54 | |
55 extern void set_Wstrict_aliasing (struct gcc_options *opts, int onoff); | |
56 | 35 |
57 /* Now the symbols that are set with `-f' switches. */ | 36 /* Now the symbols that are set with `-f' switches. */ |
58 | 37 |
59 /* True if printing into -fdump-final-insns= dump. */ | 38 /* True if printing into -fdump-final-insns= dump. */ |
60 | 39 |
61 extern bool final_insns_dump_p; | 40 extern bool final_insns_dump_p; |
62 | 41 |
63 /* Nonzero means make permerror produce warnings instead of errors. */ | |
64 | |
65 extern int flag_permissive; | |
66 | |
67 /* Generate code for GNU or NeXT Objective-C runtime environment. */ | |
68 | |
69 extern int flag_next_runtime; | |
70 | 42 |
71 /* Other basic status info about current function. */ | 43 /* Other basic status info about current function. */ |
72 | 44 |
73 /* Target-dependent global state. */ | 45 /* Target-dependent global state. */ |
74 struct target_flag_state { | 46 struct target_flag_state { |
110 #define align_functions_log \ | 82 #define align_functions_log \ |
111 (this_target_flag_state->x_align_functions_log) | 83 (this_target_flag_state->x_align_functions_log) |
112 #define flag_excess_precision \ | 84 #define flag_excess_precision \ |
113 (this_target_flag_state->x_flag_excess_precision) | 85 (this_target_flag_state->x_flag_excess_precision) |
114 | 86 |
115 /* Nonzero if we dump in VCG format, not plain text. */ | |
116 extern int dump_for_graph; | |
117 | |
118 /* Returns TRUE if generated code should match ABI version N or | 87 /* Returns TRUE if generated code should match ABI version N or |
119 greater is in use. */ | 88 greater is in use. */ |
120 | 89 |
121 #define abi_version_at_least(N) \ | 90 #define abi_version_at_least(N) \ |
122 (flag_abi_version == 0 || flag_abi_version >= (N)) | 91 (flag_abi_version == 0 || flag_abi_version >= (N)) |
123 | |
124 /* True if overflow wraps around for the given integral type. That | |
125 is, TYPE_MAX + 1 == TYPE_MIN. */ | |
126 #define TYPE_OVERFLOW_WRAPS(TYPE) \ | |
127 (TYPE_UNSIGNED (TYPE) || flag_wrapv) | |
128 | |
129 /* True if overflow is undefined for the given integral type. We may | |
130 optimize on the assumption that values in the type never overflow. | |
131 | |
132 IMPORTANT NOTE: Any optimization based on TYPE_OVERFLOW_UNDEFINED | |
133 must issue a warning based on warn_strict_overflow. In some cases | |
134 it will be appropriate to issue the warning immediately, and in | |
135 other cases it will be appropriate to simply set a flag and let the | |
136 caller decide whether a warning is appropriate or not. */ | |
137 #define TYPE_OVERFLOW_UNDEFINED(TYPE) \ | |
138 (!TYPE_UNSIGNED (TYPE) && !flag_wrapv && !flag_trapv && flag_strict_overflow) | |
139 | |
140 /* True if overflow for the given integral type should issue a | |
141 trap. */ | |
142 #define TYPE_OVERFLOW_TRAPS(TYPE) \ | |
143 (!TYPE_UNSIGNED (TYPE) && flag_trapv) | |
144 | |
145 /* True if pointer types have undefined overflow. */ | |
146 #define POINTER_TYPE_OVERFLOW_UNDEFINED (flag_strict_overflow) | |
147 | 92 |
148 /* Whether to emit an overflow warning whose code is C. */ | 93 /* Whether to emit an overflow warning whose code is C. */ |
149 #define issue_strict_overflow_warning(c) (warn_strict_overflow >= (int) (c)) | 94 #define issue_strict_overflow_warning(c) (warn_strict_overflow >= (int) (c)) |
150 | 95 |
151 #endif | 96 #endif |