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1322177d | 1 | /* Compilation switch flag definitions for GCC. |
85ec4feb | 2 | Copyright (C) 1987-2018 Free Software Foundation, Inc. |
f7a29665 | 3 | |
1322177d | 4 | This file is part of GCC. |
f7a29665 | 5 | |
1322177d LB |
6 | GCC is free software; you can redistribute it and/or modify it under |
7 | the terms of the GNU General Public License as published by the Free | |
9dcd6f09 | 8 | Software Foundation; either version 3, or (at your option) any later |
1322177d | 9 | version. |
f7a29665 | 10 | |
1322177d LB |
11 | GCC is distributed in the hope that it will be useful, but WITHOUT ANY |
12 | WARRANTY; without even the implied warranty of MERCHANTABILITY or | |
13 | FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License | |
14 | for more details. | |
f7a29665 RS |
15 | |
16 | You should have received a copy of the GNU General Public License | |
9dcd6f09 NC |
17 | along with GCC; see the file COPYING3. If not see |
18 | <http://www.gnu.org/licenses/>. */ | |
f7a29665 | 19 | |
0e5921e8 ZW |
20 | #ifndef GCC_FLAGS_H |
21 | #define GCC_FLAGS_H | |
22 | ||
a75bfaa6 | 23 | #if !defined(IN_LIBGCC2) && !defined(IN_TARGET_LIBS) && !defined(IN_RTS) |
50431bc4 | 24 | |
df026186 GK |
25 | /* Names of debug_info_type, for error messages. */ |
26 | extern const char *const debug_type_names[]; | |
27 | ||
c98cd5bf | 28 | extern void strip_off_ending (char *, int); |
69ccdddb | 29 | extern int base_of_path (const char *path, const char **base_out); |
39ef6592 | 30 | |
c98cd5bf JM |
31 | /* Return true iff flags are set as if -ffast-math. */ |
32 | extern bool fast_math_flags_set_p (const struct gcc_options *); | |
33 | extern bool fast_math_flags_struct_set_p (struct cl_optimization *); | |
34 | ||
f7a29665 RS |
35 | \f |
36 | /* Now the symbols that are set with `-f' switches. */ | |
37 | ||
6ca5d1f6 JJ |
38 | /* True if printing into -fdump-final-insns= dump. */ |
39 | ||
40 | extern bool final_insns_dump_p; | |
41 | ||
f7a29665 RS |
42 | \f |
43 | /* Other basic status info about current function. */ | |
44 | ||
c518c102 ML |
45 | /* Align flags tuple with alignment in log form and with a maximum skip. */ |
46 | ||
47 | struct align_flags_tuple | |
48 | { | |
3bd36029 | 49 | /* Values of the -falign-* flags: how much to align labels in code. |
c518c102 ML |
50 | log is "align to 2^log" (so 0 means no alignment). |
51 | maxskip is the maximum allowed amount of padding to insert. */ | |
52 | int log; | |
53 | int maxskip; | |
54 | }; | |
55 | ||
56 | /* Target-dependent global state. */ | |
57 | ||
58 | struct align_flags | |
59 | { | |
60 | align_flags_tuple levels[2]; | |
61 | }; | |
62 | ||
63 | struct target_flag_state | |
64 | { | |
65 | /* Each falign-foo can generate up to two levels of alignment: | |
66 | -falign-foo=N:M[:N2:M2] */ | |
67 | align_flags x_align_loops; | |
68 | align_flags x_align_jumps; | |
69 | align_flags x_align_labels; | |
70 | align_flags x_align_functions; | |
b6609375 RS |
71 | |
72 | /* The excess precision currently in effect. */ | |
73 | enum excess_precision x_flag_excess_precision; | |
3bd36029 RS |
74 | }; |
75 | ||
76 | extern struct target_flag_state default_target_flag_state; | |
77 | #if SWITCHABLE_TARGET | |
78 | extern struct target_flag_state *this_target_flag_state; | |
79 | #else | |
80 | #define this_target_flag_state (&default_target_flag_state) | |
81 | #endif | |
82 | ||
c518c102 ML |
83 | #define state_align_loops (this_target_flag_state->x_align_loops) |
84 | #define state_align_jumps (this_target_flag_state->x_align_jumps) | |
85 | #define state_align_labels (this_target_flag_state->x_align_labels) | |
86 | #define state_align_functions (this_target_flag_state->x_align_functions) | |
87 | #define align_loops_log (state_align_loops.levels[0].log) | |
88 | #define align_jumps_log (state_align_jumps.levels[0].log) | |
89 | #define align_labels_log (state_align_labels.levels[0].log) | |
90 | #define align_functions_log (state_align_functions.levels[0].log) | |
91 | #define align_loops_max_skip (state_align_loops.levels[0].maxskip) | |
92 | #define align_jumps_max_skip (state_align_jumps.levels[0].maxskip) | |
93 | #define align_labels_max_skip (state_align_labels.levels[0].maxskip) | |
94 | #define align_functions_max_skip (state_align_functions.levels[0].maxskip) | |
95 | #define align_loops_value (align_loops_max_skip + 1) | |
96 | #define align_jumps_value (align_jumps_max_skip + 1) | |
97 | #define align_labels_value (align_labels_max_skip + 1) | |
98 | #define align_functions_value (align_functions_max_skip + 1) | |
99 | ||
100 | /* String representaions of the above options are available in | |
101 | const char *str_align_foo. NULL if not set. */ | |
102 | ||
b6609375 RS |
103 | #define flag_excess_precision \ |
104 | (this_target_flag_state->x_flag_excess_precision) | |
3bd36029 | 105 | |
57782ad8 MM |
106 | /* Returns TRUE if generated code should match ABI version N or |
107 | greater is in use. */ | |
108 | ||
109 | #define abi_version_at_least(N) \ | |
110 | (flag_abi_version == 0 || flag_abi_version >= (N)) | |
111 | ||
6ac01510 | 112 | /* Whether to emit an overflow warning whose code is C. */ |
c4e74b1a | 113 | #define issue_strict_overflow_warning(c) (warn_strict_overflow >= (int) (c)) |
6ac01510 | 114 | |
a75bfaa6 JM |
115 | #endif |
116 | ||
88657302 | 117 | #endif /* ! GCC_FLAGS_H */ |