gcc/flags.h

   1 /* Compilation switch flag definitions for GCC.
   2    Copyright (C) 1987-2019 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 \f
  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 \f
  43 /* Other basic status info about current function.  */
  44
  45 struct target_flag_state
  46 {
  47   /* Each falign-foo can generate up to two levels of alignment:
  48      -falign-foo=N:M[:N2:M2] */
  49   align_flags x_align_loops;
  50   align_flags x_align_jumps;
  51   align_flags x_align_labels;
  52   align_flags x_align_functions;
  53
  54   /* The excess precision currently in effect.  */
  55   enum excess_precision x_flag_excess_precision;
  56 };
  57
  58 extern struct target_flag_state default_target_flag_state;
  59 #if SWITCHABLE_TARGET
  60 extern struct target_flag_state *this_target_flag_state;
  61 #else
  62 #define this_target_flag_state (&default_target_flag_state)
  63 #endif
  64
  65 #define align_loops      (this_target_flag_state->x_align_loops)
  66 #define align_jumps      (this_target_flag_state->x_align_jumps)
  67 #define align_labels     (this_target_flag_state->x_align_labels)
  68 #define align_functions  (this_target_flag_state->x_align_functions)
  69
  70 /* String representaions of the above options are available in
  71    const char *str_align_foo.  NULL if not set.  */
  72
  73 #define flag_excess_precision \
  74   (this_target_flag_state->x_flag_excess_precision)
  75
  76 /* Returns TRUE if generated code should match ABI version N or
  77    greater is in use.  */
  78
  79 #define abi_version_at_least(N) \
  80   (flag_abi_version == 0 || flag_abi_version >= (N))
  81
  82 /* Whether to emit an overflow warning whose code is C.  */
  83 #define issue_strict_overflow_warning(c) (warn_strict_overflow >= (int) (c))
  84
  85 #endif
  86
  87 #endif /* ! GCC_FLAGS_H */