1 /* Compilation switch flag definitions for GCC. 2 Copyright (C) 1987-2018 Free Software Foundation, Inc. 3 4 This file is part of GCC. 5 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 8 Software Foundation; either version 3, or (at your option) any later 9 version. 10 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. 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 #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. */ 26 extern const char *const debug_type_names[]; 27 28 extern void strip_off_ending (char *, int); 29 extern int base_of_path (const char *path, const char **base_out); 30 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 35 36 /* Now the symbols that are set with `-f' switches. */ 37 38 /* True if printing into -fdump-final-insns= dump. */ 39 40 extern bool final_insns_dump_p; 41 42 43 /* Other basic status info about current function. */ 44 45 /* Target-dependent global state. */ 46 struct 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 63 extern struct target_flag_state default_target_flag_state; 64 #if SWITCHABLE_TARGET 65 extern 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