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    2008, 2009, 2010
   4    Free Software Foundation, Inc.
   5
   6 This file is part of GCC.
   7
   8 GCC is free software; you can redistribute it and/or modify it under
   9 the terms of the GNU General Public License as published by the Free
  10 Software Foundation; either version 3, or (at your option) any later
  11 version.
  12
  13 GCC is distributed in the hope that it will be useful, but WITHOUT ANY
  14 WARRANTY; without even the implied warranty of MERCHANTABILITY or
  15 FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
  16 for more details.
  17
  18 You should have received a copy of the GNU General Public License
  19 along with GCC; see the file COPYING3.  If not see
  20 <http://www.gnu.org/licenses/>.  */
  21
  22 #ifndef GCC_TOPLEV_H
  23 #define GCC_TOPLEV_H
  24 #include "input.h"
  25 #include "bversion.h"
  26 #include "diagnostic-core.h"
  27
  28 /* If non-NULL, return one past-the-end of the matching SUBPART of
  29    the WHOLE string.  */
  30 #define skip_leading_substring(whole,  part) \
  31    (strncmp (whole, part, strlen (part)) ? NULL : whole + strlen (part))
  32
  33 extern int toplev_main (int, char **);
  34 extern int read_integral_parameter (const char *, const char *, const int);
  35 extern void strip_off_ending (char *, int);
  36 extern void _fatal_insn_not_found (const_rtx, const char *, int, const char *)
  37      ATTRIBUTE_NORETURN;
  38 extern void _fatal_insn (const char *, const_rtx, const char *, int, const char *)
  39      ATTRIBUTE_NORETURN;
  40
  41 #define fatal_insn(msgid, insn) \
  42         _fatal_insn (msgid, insn, __FILE__, __LINE__, __FUNCTION__)
  43 #define fatal_insn_not_found(insn) \
  44         _fatal_insn_not_found (insn, __FILE__, __LINE__, __FUNCTION__)
  45
  46 extern void rest_of_decl_compilation (tree, int, int);
  47 extern void rest_of_type_compilation (tree, int);
  48 extern void tree_rest_of_compilation (tree);
  49 extern void init_optimization_passes (void);
  50 extern void finish_optimization_passes (void);
  51 extern bool enable_rtl_dump_file (void);
  52
  53 extern void announce_function (tree);
  54
  55 extern void error_for_asm (const_rtx, const char *, ...) ATTRIBUTE_GCC_DIAG(2,3);
  56 extern void warning_for_asm (const_rtx, const char *, ...) ATTRIBUTE_GCC_DIAG(2,3);
  57 extern void warn_deprecated_use (tree, tree);
  58 extern bool parse_optimize_options (tree, bool);
  59
  60 #ifdef BUFSIZ
  61 extern void output_quoted_string        (FILE *, const char *);
  62 extern void output_file_directive       (FILE *, const char *);
  63 #endif
  64
  65 extern void wrapup_global_declaration_1 (tree);
  66 extern bool wrapup_global_declaration_2 (tree);
  67 extern bool wrapup_global_declarations (tree *, int);
  68 extern void check_global_declaration_1 (tree);
  69 extern void check_global_declarations (tree *, int);
  70 extern void emit_debug_global_declarations (tree *, int);
  71 extern void write_global_declarations (void);
  72
  73 extern void dump_memory_report (bool);
  74
  75 extern void target_reinit (void);
  76
  77 /* A unique local time stamp, might be zero if none is available.  */
  78 extern unsigned local_tick;
  79
  80 /* Top-level source file.  */
  81 extern const char *main_input_filename;
  82
  83 extern const char *dump_base_name;
  84 extern const char *dump_dir_name;
  85 extern const char *aux_base_name;
  86 extern const char *aux_info_file_name;
  87 extern const char *profile_data_prefix;
  88 extern const char *asm_file_name;
  89 extern bool exit_after_options;
  90
  91 /* True if the user has tagged the function with the 'section'
  92    attribute.  */
  93
  94 extern bool user_defined_section_attribute;
  95
  96 /* See toplev.c.  */
  97 extern int flag_rerun_cse_after_global_opts;
  98
  99 /* Things to do with target switches.  */
 100 extern void print_version (FILE *, const char *);
 101 extern void * default_get_pch_validity (size_t *);
 102 extern const char * default_pch_valid_p (const void *, size_t);
 103
 104 /* The hashtable, so that the C front ends can pass it to cpplib.  */
 105 extern struct ht *ident_hash;
 106
 107 /* This function can be used by targets to set the flags originally
 108     implied by -ffast-math and -fno-fast-math.  */
 109
 110 extern void set_fast_math_flags         (int);
 111
 112 extern void set_unsafe_math_optimizations_flags (int);
 113
 114 /* Handle -d switch.  */
 115 extern void decode_d_option             (const char *);
 116
 117 /* Return true iff flags are set as if -ffast-math.  */
 118 extern bool fast_math_flags_set_p       (void);
 119 extern bool fast_math_flags_struct_set_p (struct cl_optimization *);
 120
 121 /* Inline versions of the above for speed.  */
 122 #if GCC_VERSION < 3004
 123
 124 /* Return log2, or -1 if not exact.  */
 125 extern int exact_log2                  (unsigned HOST_WIDE_INT);
 126
 127 /* Return floor of log2, with -1 for zero.  */
 128 extern int floor_log2                  (unsigned HOST_WIDE_INT);
 129
 130 #else /* GCC_VERSION >= 3004 */
 131
 132 # if HOST_BITS_PER_WIDE_INT == HOST_BITS_PER_LONG
 133 #  define CLZ_HWI __builtin_clzl
 134 #  define CTZ_HWI __builtin_ctzl
 135 # elif HOST_BITS_PER_WIDE_INT == HOST_BITS_PER_LONGLONG
 136 #  define CLZ_HWI __builtin_clzll
 137 #  define CTZ_HWI __builtin_ctzll
 138 # else
 139 #  define CLZ_HWI __builtin_clz
 140 #  define CTZ_HWI __builtin_ctz
 141 # endif
 142
 143 static inline int
 144 floor_log2 (unsigned HOST_WIDE_INT x)
 145 {
 146   return x ? HOST_BITS_PER_WIDE_INT - 1 - (int) CLZ_HWI (x) : -1;
 147 }
 148
 149 static inline int
 150 exact_log2 (unsigned HOST_WIDE_INT x)
 151 {
 152   return x == (x & -x) && x ? (int) CTZ_HWI (x) : -1;
 153 }
 154
 155 #endif /* GCC_VERSION >= 3004 */
 156
 157 /* Functions used to get and set GCC's notion of in what directory
 158    compilation was started.  */
 159
 160 extern const char *get_src_pwd         (void);
 161 extern bool set_src_pwd                (const char *);
 162
 163 /* Functions used to manipulate the random seed.  */
 164
 165 extern const char *get_random_seed (bool);
 166 extern const char *set_random_seed (const char *);
 167
 168 #endif /* ! GCC_TOPLEV_H */