gcc/toplev.h

   1 /* toplev.h - Various declarations for functions found in toplev.c
   2    Copyright (C) 1998, 1999, 2000, 2001, 2003, 2004, 2005
   3    Free Software Foundation, Inc.
   4
   5 This file is part of GCC.
   6
   7 GCC is free software; you can redistribute it and/or modify it under
   8 the terms of the GNU General Public License as published by the Free
   9 Software Foundation; either version 2, or (at your option) any later
  10 version.
  11
  12 GCC is distributed in the hope that it will be useful, but WITHOUT ANY
  13 WARRANTY; without even the implied warranty of MERCHANTABILITY or
  14 FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
  15 for more details.
  16
  17 You should have received a copy of the GNU General Public License
  18 along with GCC; see the file COPYING.  If not, write to the Free
  19 Software Foundation, 59 Temple Place - Suite 330, Boston, MA
  20 02111-1307, USA.  */
  21
  22 #ifndef GCC_TOPLEV_H
  23 #define GCC_TOPLEV_H
  24
  25 /* If non-NULL, return one past-the-end of the matching SUBPART of
  26    the WHOLE string.  */
  27 #define skip_leading_substring(whole,  part) \
  28    (strncmp (whole, part, strlen (part)) ? NULL : whole + strlen (part))
  29
  30 extern int toplev_main (unsigned int, const char **);
  31 extern int read_integral_parameter (const char *, const char *, const int);
  32 extern void strip_off_ending (char *, int);
  33 extern const char *trim_filename (const char *);
  34 extern void _fatal_insn_not_found (rtx, const char *, int, const char *)
  35      ATTRIBUTE_NORETURN;
  36 extern void _fatal_insn (const char *, rtx, const char *, int, const char *)
  37      ATTRIBUTE_NORETURN;
  38
  39 #define fatal_insn(msgid, insn) \
  40         _fatal_insn (msgid, insn, __FILE__, __LINE__, __FUNCTION__)
  41 #define fatal_insn_not_found(insn) \
  42         _fatal_insn_not_found (insn, __FILE__, __LINE__, __FUNCTION__)
  43
  44 /* If we haven't already defined a frontend specific diagnostics
  45    style, use the generic one.  */
  46 #ifndef GCC_DIAG_STYLE
  47 #define GCC_DIAG_STYLE __gcc_diag__
  48 #define NO_FRONT_END_DIAG
  49 #endif
  50 /* None of these functions are suitable for ATTRIBUTE_PRINTF, because
  51    each language front end can extend them with its own set of format
  52    specifiers.  We must use custom format checks.  Note that at present
  53    the front-end %D specifier is used in non-front-end code with some
  54    functions, and those formats can only be checked in front-end code.  */
  55 #if GCC_VERSION >= 3005
  56 #define ATTRIBUTE_GCC_DIAG(m, n) __attribute__ ((__format__ (GCC_DIAG_STYLE, m, n))) ATTRIBUTE_NONNULL(m)
  57 #ifdef NO_FRONT_END_DIAG
  58 #define ATTRIBUTE_GCC_FE_DIAG(m, n) ATTRIBUTE_NONNULL(m)
  59 #else
  60 #define ATTRIBUTE_GCC_FE_DIAG(m, n) __attribute__ ((__format__ (GCC_DIAG_STYLE, m, n))) ATTRIBUTE_NONNULL(m)
  61 #endif
  62 #else
  63 #define ATTRIBUTE_GCC_DIAG(m, n) ATTRIBUTE_NONNULL(m)
  64 #define ATTRIBUTE_GCC_FE_DIAG(m, n) ATTRIBUTE_NONNULL(m)
  65 #endif
  66 extern void internal_error (const char *, ...) ATTRIBUTE_GCC_DIAG(1,2)
  67      ATTRIBUTE_NORETURN;
  68 extern void warning0 (const char *, ...) ATTRIBUTE_GCC_FE_DIAG(1,2);
  69 extern void warning (int, const char *, ...) ATTRIBUTE_GCC_FE_DIAG(2,3);
  70 extern void error (const char *, ...) ATTRIBUTE_GCC_FE_DIAG(1,2);
  71 extern void fatal_error (const char *, ...) ATTRIBUTE_GCC_DIAG(1,2)
  72      ATTRIBUTE_NORETURN;
  73 extern void pedwarn (const char *, ...) ATTRIBUTE_GCC_FE_DIAG(1,2);
  74 extern void sorry (const char *, ...) ATTRIBUTE_GCC_FE_DIAG(1,2);
  75 extern void inform (const char *, ...) ATTRIBUTE_GCC_DIAG(1,2);
  76
  77 extern void rest_of_decl_compilation (tree, int, int);
  78 extern void rest_of_type_compilation (tree, int);
  79 extern void tree_rest_of_compilation (tree);
  80 extern void init_tree_optimization_passes (void);
  81 extern void finish_optimization_passes (void);
  82 extern bool enable_rtl_dump_file (int);
  83
  84 extern void announce_function (tree);
  85
  86 extern void error_for_asm (rtx, const char *, ...) ATTRIBUTE_GCC_DIAG(2,3);
  87 extern void warning_for_asm (rtx, const char *, ...) ATTRIBUTE_GCC_DIAG(2,3);
  88 extern void warn_deprecated_use (tree);
  89
  90 #ifdef BUFSIZ
  91 extern void output_quoted_string        (FILE *, const char *);
  92 extern void output_file_directive       (FILE *, const char *);
  93 #endif
  94
  95 #ifdef BUFSIZ
  96   /* N.B. Unlike all the others, fnotice is just gettext+fprintf, and
  97      therefore it can have ATTRIBUTE_PRINTF.  */
  98 extern void fnotice                     (FILE *, const char *, ...)
  99      ATTRIBUTE_PRINTF_2;
 100 #endif
 101
 102 extern int wrapup_global_declarations (tree *, int);
 103 extern void check_global_declarations (tree *, int);
 104 extern void write_global_declarations (void);
 105
 106 /* A unique local time stamp, might be zero if none is available.  */
 107 extern unsigned local_tick;
 108
 109 extern const char *progname;
 110 extern const char *dump_base_name;
 111 extern const char *aux_base_name;
 112 extern const char *aux_info_file_name;
 113 extern const char *asm_file_name;
 114 extern bool exit_after_options;
 115
 116 extern int target_flags_explicit;
 117
 118 /* True if the user has tagged the function with the 'section'
 119    attribute.  */
 120
 121 extern bool user_defined_section_attribute;
 122
 123 /* See toplev.c.  */
 124 extern int flag_loop_optimize;
 125 extern int flag_crossjumping;
 126 extern int flag_if_conversion;
 127 extern int flag_if_conversion2;
 128 extern int flag_keep_static_consts;
 129 extern int flag_peel_loops;
 130 extern int flag_rerun_cse_after_loop;
 131 extern int flag_thread_jumps;
 132 extern int flag_tracer;
 133 extern int flag_unroll_loops;
 134 extern int flag_unroll_all_loops;
 135 extern int flag_unswitch_loops;
 136 extern int flag_cprop_registers;
 137 extern int time_report;
 138 extern int flag_tree_based_profiling;
 139
 140 /* Things to do with target switches.  */
 141 extern void display_target_options (void);
 142 extern void print_version (FILE *, const char *);
 143 extern void set_target_switch (const char *);
 144 extern void * default_get_pch_validity (size_t *);
 145 extern const char * default_pch_valid_p (const void *, size_t);
 146
 147 /* The hashtable, so that the C front ends can pass it to cpplib.  */
 148 extern struct ht *ident_hash;
 149
 150 /* This function can be used by targets to set the flags originally
 151     implied by -ffast-math and -fno-fast-math.  */
 152
 153 extern void set_fast_math_flags         (int);
 154
 155 /* Handle -d switch.  */
 156 extern void decode_d_option             (const char *);
 157
 158 /* Return true iff flags are set as if -ffast-math.  */
 159 extern bool fast_math_flags_set_p       (void);
 160
 161 /* Return log2, or -1 if not exact.  */
 162 extern int exact_log2                  (unsigned HOST_WIDE_INT);
 163
 164 /* Return floor of log2, with -1 for zero.  */
 165 extern int floor_log2                  (unsigned HOST_WIDE_INT);
 166
 167 /* Inline versions of the above for speed.  */
 168 #if GCC_VERSION >= 3004
 169 # if HOST_BITS_PER_WIDE_INT == HOST_BITS_PER_LONG
 170 #  define CLZ_HWI __builtin_clzl
 171 #  define CTZ_HWI __builtin_ctzl
 172 # elif HOST_BITS_PER_WIDE_INT == HOST_BITS_PER_LONGLONG
 173 #  define CLZ_HWI __builtin_clzll
 174 #  define CTZ_HWI __builtin_ctzll
 175 # else
 176 #  define CLZ_HWI __builtin_clz
 177 #  define CTZ_HWI __builtin_ctz
 178 # endif
 179
 180 extern inline int
 181 floor_log2 (unsigned HOST_WIDE_INT x)
 182 {
 183   return x ? HOST_BITS_PER_WIDE_INT - 1 - (int) CLZ_HWI (x) : -1;
 184 }
 185
 186 extern inline int
 187 exact_log2 (unsigned HOST_WIDE_INT x)
 188 {
 189   return x == (x & -x) && x ? (int) CTZ_HWI (x) : -1;
 190 }
 191 #endif /* GCC_VERSION >= 3004 */
 192
 193 /* Functions used to get and set GCC's notion of in what directory
 194    compilation was started.  */
 195
 196 extern const char *get_src_pwd         (void);
 197 extern bool set_src_pwd                (const char *);
 198
 199 #endif /* ! GCC_TOPLEV_H */