1/* Compilation switch flag definitions for GCC.
2 Copyright (C) 1987-2017 Free Software Foundation, Inc.
3
4This file is part of GCC.
5
6GCC is free software; you can redistribute it and/or modify it under
7the terms of the GNU General Public License as published by the Free
8Software Foundation; either version 3, or (at your option) any later
9version.
10
11GCC is distributed in the hope that it will be useful, but WITHOUT ANY
12WARRANTY; without even the implied warranty of MERCHANTABILITY or
13FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
14for more details.
15
16You should have received a copy of the GNU General Public License
17along with GCC; see the file COPYING3. If not see
18<http://www.gnu.org/licenses/>. */
19
20#ifndef GCC_FLAGS_H
21#define GCC_FLAGS_H
22
23#if !defined(IN_LIBGCC2) && !defined(IN_TARGET_LIBS) && !defined(IN_RTS)
24
25/* Names of debug_info_type, for error messages. */
26extern const char *const debug_type_names[];
27
28extern void strip_off_ending (char *, int);
29extern int base_of_path (const char *path, const char **base_out);
30
31/* Return true iff flags are set as if -ffast-math. */
32extern bool fast_math_flags_set_p (const struct gcc_options *);
33extern bool fast_math_flags_struct_set_p (struct cl_optimization *);
34
35
36/* Now the symbols that are set with `-f' switches. */
37
38/* True if printing into -fdump-final-insns= dump. */
39
40extern bool final_insns_dump_p;
41
42
43/* Other basic status info about current function. */
44
45/* Target-dependent global state. */
46struct target_flag_state {
47 /* Values of the -falign-* flags: how much to align labels in code.
48 0 means `use default', 1 means `don't align'.
49 For each variable, there is an _log variant which is the power
50 of two not less than the variable, for .align output. */
51 int x_align_loops_log;
52 int x_align_loops_max_skip;
53 int x_align_jumps_log;
54 int x_align_jumps_max_skip;
55 int x_align_labels_log;
56 int x_align_labels_max_skip;
57 int x_align_functions_log;
58
59 /* The excess precision currently in effect. */
60 enum excess_precision x_flag_excess_precision;
61};
62
63extern struct target_flag_state default_target_flag_state;
64#if SWITCHABLE_TARGET
65extern struct target_flag_state *this_target_flag_state;
66#else
67#define this_target_flag_state (&default_target_flag_state)
68#endif
69
70#define align_loops_log \
71 (this_target_flag_state->x_align_loops_log)
72#define align_loops_max_skip \
73 (this_target_flag_state->x_align_loops_max_skip)
74#define align_jumps_log \
75 (this_target_flag_state->x_align_jumps_log)
76#define align_jumps_max_skip \
77 (this_target_flag_state->x_align_jumps_max_skip)
78#define align_labels_log \
79 (this_target_flag_state->x_align_labels_log)
80#define align_labels_max_skip \
81 (this_target_flag_state->x_align_labels_max_skip)
82#define align_functions_log \
83 (this_target_flag_state->x_align_functions_log)
84#define flag_excess_precision \
85 (this_target_flag_state->x_flag_excess_precision)
86
87/* Returns TRUE if generated code should match ABI version N or
88 greater is in use. */
89
90#define abi_version_at_least(N) \
91 (flag_abi_version == 0 || flag_abi_version >= (N))
92
93/* Whether to emit an overflow warning whose code is C. */
94#define issue_strict_overflow_warning(c) (warn_strict_overflow >= (int) (c))
95
96#endif
97
98#endif /* ! GCC_FLAGS_H */
99