gcc/toplev.h

   1 /* toplev.h - Various declarations for functions found in toplev.c
   2    Copyright (C) 1998, 1999, 2000, 2001, 2003, 2004, 2005, 2006, 2007
   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 3, 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 COPYING3.  If not see
  19 <http://www.gnu.org/licenses/>.  */
  20
  21 #ifndef GCC_TOPLEV_H
  22 #define GCC_TOPLEV_H
  23
  24 /* If non-NULL, return one past-the-end of the matching SUBPART of
  25    the WHOLE string.  */
  26 #define skip_leading_substring(whole,  part) \
  27    (strncmp (whole, part, strlen (part)) ? NULL : whole + strlen (part))
  28
  29 extern int toplev_main (unsigned int, const char **);
  30 extern int read_integral_parameter (const char *, const char *, const int);
  31 extern void strip_off_ending (char *, int);
  32 extern const char *trim_filename (const char *);
  33 extern void _fatal_insn_not_found (const_rtx, const char *, int, const char *)
  34      ATTRIBUTE_NORETURN;
  35 extern void _fatal_insn (const char *, const_rtx, const char *, int, const char *)
  36      ATTRIBUTE_NORETURN;
  37
  38 #define fatal_insn(msgid, insn) \
  39         _fatal_insn (msgid, insn, __FILE__, __LINE__, __FUNCTION__)
  40 #define fatal_insn_not_found(insn) \
  41         _fatal_insn_not_found (insn, __FILE__, __LINE__, __FUNCTION__)
  42
  43 /* If we haven't already defined a frontend specific diagnostics
  44    style, use the generic one.  */
  45 #ifndef GCC_DIAG_STYLE
  46 #define GCC_DIAG_STYLE __gcc_tdiag__
  47 #endif
  48 /* None of these functions are suitable for ATTRIBUTE_PRINTF, because
  49    each language front end can extend them with its own set of format
  50    specifiers.  We must use custom format checks.  */
  51 #if GCC_VERSION >= 4001
  52 #define ATTRIBUTE_GCC_DIAG(m, n) __attribute__ ((__format__ (GCC_DIAG_STYLE, m, n))) ATTRIBUTE_NONNULL(m)
  53 #else
  54 #define ATTRIBUTE_GCC_DIAG(m, n) ATTRIBUTE_NONNULL(m)
  55 #endif
  56 extern void internal_error (const char *, ...) ATTRIBUTE_GCC_DIAG(1,2)
  57      ATTRIBUTE_NORETURN;
  58 extern void warning0 (const char *, ...) ATTRIBUTE_GCC_DIAG(1,2);
  59 /* Pass one of the OPT_W* from options.h as the first parameter.  */
  60 extern void warning (int, const char *, ...) ATTRIBUTE_GCC_DIAG(2,3);
  61 extern void error (const char *, ...) ATTRIBUTE_GCC_DIAG(1,2);
  62 extern void fatal_error (const char *, ...) ATTRIBUTE_GCC_DIAG(1,2)
  63      ATTRIBUTE_NORETURN;
  64 extern void pedwarn (const char *, ...) ATTRIBUTE_GCC_DIAG(1,2);
  65 extern void sorry (const char *, ...) ATTRIBUTE_GCC_DIAG(1,2);
  66 extern void inform (const char *, ...) ATTRIBUTE_GCC_DIAG(1,2);
  67 extern void verbatim (const char *, ...) ATTRIBUTE_GCC_DIAG(1,2);
  68
  69 extern void rest_of_decl_compilation (tree, int, int);
  70 extern void rest_of_type_compilation (tree, int);
  71 extern void tree_rest_of_compilation (tree);
  72 extern void init_optimization_passes (void);
  73 extern void finish_optimization_passes (void);
  74 extern bool enable_rtl_dump_file (int);
  75
  76 extern void announce_function (tree);
  77
  78 extern void error_for_asm (const_rtx, const char *, ...) ATTRIBUTE_GCC_DIAG(2,3);
  79 extern void warning_for_asm (const_rtx, const char *, ...) ATTRIBUTE_GCC_DIAG(2,3);
  80 extern void warn_deprecated_use (tree);
  81
  82 #ifdef BUFSIZ
  83 extern void output_quoted_string        (FILE *, const char *);
  84 extern void output_file_directive       (FILE *, const char *);
  85 #endif
  86
  87 #ifdef BUFSIZ
  88   /* N.B. Unlike all the others, fnotice is just gettext+fprintf, and
  89      therefore it can have ATTRIBUTE_PRINTF.  */
  90 extern void fnotice                     (FILE *, const char *, ...)
  91      ATTRIBUTE_PRINTF_2;
  92 #endif
  93
  94 extern void wrapup_global_declaration_1 (tree);
  95 extern bool wrapup_global_declaration_2 (tree);
  96 extern bool wrapup_global_declarations (tree *, int);
  97 extern void check_global_declaration_1 (tree);
  98 extern void check_global_declarations (tree *, int);
  99 extern void emit_debug_global_declarations (tree *, int);
 100 extern void write_global_declarations (void);
 101
 102 extern void dump_memory_report (bool);
 103
 104 extern void target_reinit (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 /* True if the user has tagged the function with the 'section'
 117    attribute.  */
 118
 119 extern bool user_defined_section_attribute;
 120
 121 /* See toplev.c.  */
 122 extern int flag_crossjumping;
 123 extern int flag_if_conversion;
 124 extern int flag_if_conversion2;
 125 extern int flag_keep_static_consts;
 126 extern int flag_peel_loops;
 127 extern int flag_rerun_cse_after_loop;
 128 extern int flag_thread_jumps;
 129 extern int flag_tracer;
 130 extern int flag_unroll_loops;
 131 extern int flag_unroll_all_loops;
 132 extern int flag_unswitch_loops;
 133 extern int flag_cprop_registers;
 134 extern int time_report;
 135
 136 /* Things to do with target switches.  */
 137 extern void print_version (FILE *, const char *);
 138 extern void * default_get_pch_validity (size_t *);
 139 extern const char * default_pch_valid_p (const void *, size_t);
 140
 141 /* The hashtable, so that the C front ends can pass it to cpplib.  */
 142 extern struct ht *ident_hash;
 143
 144 /* This function can be used by targets to set the flags originally
 145     implied by -ffast-math and -fno-fast-math.  */
 146
 147 extern void set_fast_math_flags         (int);
 148
 149 extern void set_unsafe_math_optimizations_flags (int);
 150
 151 /* Handle -d switch.  */
 152 extern void decode_d_option             (const char *);
 153
 154 /* Return true iff flags are set as if -ffast-math.  */
 155 extern bool fast_math_flags_set_p       (void);
 156
 157 /* Return log2, or -1 if not exact.  */
 158 extern int exact_log2                  (unsigned HOST_WIDE_INT);
 159
 160 /* Return floor of log2, with -1 for zero.  */
 161 extern int floor_log2                  (unsigned HOST_WIDE_INT);
 162
 163 /* Inline versions of the above for speed.  */
 164 #if GCC_VERSION >= 3004
 165 # if HOST_BITS_PER_WIDE_INT == HOST_BITS_PER_LONG
 166 #  define CLZ_HWI __builtin_clzl
 167 #  define CTZ_HWI __builtin_ctzl
 168 # elif HOST_BITS_PER_WIDE_INT == HOST_BITS_PER_LONGLONG
 169 #  define CLZ_HWI __builtin_clzll
 170 #  define CTZ_HWI __builtin_ctzll
 171 # else
 172 #  define CLZ_HWI __builtin_clz
 173 #  define CTZ_HWI __builtin_ctz
 174 # endif
 175
 176 extern inline int
 177 floor_log2 (unsigned HOST_WIDE_INT x)
 178 {
 179   return x ? HOST_BITS_PER_WIDE_INT - 1 - (int) CLZ_HWI (x) : -1;
 180 }
 181
 182 extern inline int
 183 exact_log2 (unsigned HOST_WIDE_INT x)
 184 {
 185   return x == (x & -x) && x ? (int) CTZ_HWI (x) : -1;
 186 }
 187 #endif /* GCC_VERSION >= 3004 */
 188
 189 /* Functions used to get and set GCC's notion of in what directory
 190    compilation was started.  */
 191
 192 extern const char *get_src_pwd         (void);
 193 extern bool set_src_pwd                (const char *);
 194
 195 /* Functions used to manipulate the random seed.  */
 196
 197 extern const char *get_random_seed (bool);
 198 extern const char *set_random_seed (const char *);
 199
 200 #endif /* ! GCC_TOPLEV_H */