gcc/flag-types.h

   1 /* Compilation switch flag type definitions for GCC.
   2    Copyright (C) 1987, 1988, 1994, 1995, 1996, 1997, 1998, 1999, 2000, 2002,
   3    2003, 2004, 2005, 2006, 2007, 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_FLAG_TYPES_H
  23 #define GCC_FLAG_TYPES_H
  24
  25 enum debug_info_type
  26 {
  27   NO_DEBUG,         /* Write no debug info.  */
  28   DBX_DEBUG,        /* Write BSD .stabs for DBX (using dbxout.c).  */
  29   SDB_DEBUG,        /* Write COFF for (old) SDB (using sdbout.c).  */
  30   DWARF2_DEBUG,     /* Write Dwarf v2 debug info (using dwarf2out.c).  */
  31   XCOFF_DEBUG,      /* Write IBM/Xcoff debug info (using dbxout.c).  */
  32   VMS_DEBUG,        /* Write VMS debug info (using vmsdbgout.c).  */
  33   VMS_AND_DWARF2_DEBUG /* Write VMS debug info (using vmsdbgout.c).
  34                           and DWARF v2 debug info (using dwarf2out.c).  */
  35 };
  36
  37 enum debug_info_levels
  38 {
  39   DINFO_LEVEL_NONE,     /* Write no debugging info.  */
  40   DINFO_LEVEL_TERSE,    /* Write minimal info to support tracebacks only.  */
  41   DINFO_LEVEL_NORMAL,   /* Write info for all declarations (and line table).  */
  42   DINFO_LEVEL_VERBOSE   /* Write normal info plus #define/#undef info.  */
  43 };
  44
  45 /* A major contribution to object and executable size is debug
  46    information size.  A major contribution to debug information
  47    size is struct descriptions replicated in several object files.
  48    The following function determines whether or not debug information
  49    should be generated for a given struct.  The indirect parameter
  50    indicates that the struct is being handled indirectly, via
  51    a pointer.  See opts.c for the implementation. */
  52
  53 enum debug_info_usage
  54 {
  55   DINFO_USAGE_DFN,      /* A struct definition. */
  56   DINFO_USAGE_DIR_USE,  /* A direct use, such as the type of a variable. */
  57   DINFO_USAGE_IND_USE,  /* An indirect use, such as through a pointer. */
  58   DINFO_USAGE_NUM_ENUMS /* The number of enumerators. */
  59 };
  60
  61 /* A major contribution to object and executable size is debug
  62    information size.  A major contribution to debug information size
  63    is struct descriptions replicated in several object files. The
  64    following flags attempt to reduce this information.  The basic
  65    idea is to not emit struct debugging information in the current
  66    compilation unit when that information will be generated by
  67    another compilation unit.
  68
  69    Debug information for a struct defined in the current source
  70    file should be generated in the object file.  Likewise the
  71    debug information for a struct defined in a header should be
  72    generated in the object file of the corresponding source file.
  73    Both of these case are handled when the base name of the file of
  74    the struct definition matches the base name of the source file
  75    of the current compilation unit.  This matching emits minimal
  76    struct debugging information.
  77
  78    The base file name matching rule above will fail to emit debug
  79    information for structs defined in system headers.  So a second
  80    category of files includes system headers in addition to files
  81    with matching bases.
  82
  83    The remaining types of files are library headers and application
  84    headers.  We cannot currently distinguish these two types.  */
  85
  86 enum debug_struct_file
  87 {
  88   DINFO_STRUCT_FILE_NONE,   /* Debug no structs. */
  89   DINFO_STRUCT_FILE_BASE,   /* Debug structs defined in files with the
  90                                same base name as the compilation unit. */
  91   DINFO_STRUCT_FILE_SYS,    /* Also debug structs defined in system
  92                                header files.  */
  93   DINFO_STRUCT_FILE_ANY     /* Debug structs defined in all files. */
  94 };
  95
  96 /* Enumerate visibility settings.  This is deliberately ordered from most
  97    to least visibility.  */
  98 #ifndef SYMBOL_VISIBILITY_DEFINED
  99 #define SYMBOL_VISIBILITY_DEFINED
 100 enum symbol_visibility
 101 {
 102   VISIBILITY_DEFAULT,
 103   VISIBILITY_PROTECTED,
 104   VISIBILITY_HIDDEN,
 105   VISIBILITY_INTERNAL
 106 };
 107 #endif
 108
 109 /* The algorithm used for the integrated register allocator (IRA).  */
 110 enum ira_algorithm
 111 {
 112   IRA_ALGORITHM_CB,
 113   IRA_ALGORITHM_PRIORITY
 114 };
 115
 116 /* The regions used for the integrated register allocator (IRA).  */
 117 enum ira_region
 118 {
 119   IRA_REGION_ONE,
 120   IRA_REGION_ALL,
 121   IRA_REGION_MIXED
 122 };
 123
 124 /* The options for excess precision.  */
 125 enum excess_precision
 126 {
 127   EXCESS_PRECISION_DEFAULT,
 128   EXCESS_PRECISION_FAST,
 129   EXCESS_PRECISION_STANDARD
 130 };
 131
 132 /* Selection of the graph form.  */
 133 enum graph_dump_types
 134 {
 135   no_graph = 0,
 136   vcg
 137 };
 138
 139 /* Type of stack check.  */
 140 enum stack_check_type
 141 {
 142   /* Do not check the stack.  */
 143   NO_STACK_CHECK = 0,
 144
 145   /* Check the stack generically, i.e. assume no specific support
 146      from the target configuration files.  */
 147   GENERIC_STACK_CHECK,
 148
 149   /* Check the stack and rely on the target configuration files to
 150      check the static frame of functions, i.e. use the generic
 151      mechanism only for dynamic stack allocations.  */
 152   STATIC_BUILTIN_STACK_CHECK,
 153
 154   /* Check the stack and entirely rely on the target configuration
 155      files, i.e. do not use the generic mechanism at all.  */
 156   FULL_BUILTIN_STACK_CHECK
 157 };
 158
 159 /* Names for the different levels of -Wstrict-overflow=N.  The numeric
 160    values here correspond to N.  */
 161
 162 enum warn_strict_overflow_code
 163 {
 164   /* Overflow warning that should be issued with -Wall: a questionable
 165      construct that is easy to avoid even when using macros.  Example:
 166      folding (x + CONSTANT > x) to 1.  */
 167   WARN_STRICT_OVERFLOW_ALL = 1,
 168   /* Overflow warning about folding a comparison to a constant because
 169      of undefined signed overflow, other than cases covered by
 170      WARN_STRICT_OVERFLOW_ALL.  Example: folding (abs (x) >= 0) to 1
 171      (this is false when x == INT_MIN).  */
 172   WARN_STRICT_OVERFLOW_CONDITIONAL = 2,
 173   /* Overflow warning about changes to comparisons other than folding
 174      them to a constant.  Example: folding (x + 1 > 1) to (x > 0).  */
 175   WARN_STRICT_OVERFLOW_COMPARISON = 3,
 176   /* Overflow warnings not covered by the above cases.  Example:
 177      folding ((x * 10) / 5) to (x * 2).  */
 178   WARN_STRICT_OVERFLOW_MISC = 4,
 179   /* Overflow warnings about reducing magnitude of constants in
 180      comparison.  Example: folding (x + 2 > y) to (x + 1 >= y).  */
 181   WARN_STRICT_OVERFLOW_MAGNITUDE = 5
 182 };
 183
 184 /* Floating-point contraction mode.  */
 185 enum fp_contract_mode {
 186   FP_CONTRACT_OFF = 0,
 187   FP_CONTRACT_ON = 1,
 188   FP_CONTRACT_FAST = 2
 189 };
 190
 191 /* Vectorizer verbosity levels.  */
 192 enum vect_verbosity_levels {
 193   REPORT_NONE,
 194   REPORT_VECTORIZED_LOCATIONS,
 195   REPORT_UNVECTORIZED_LOCATIONS,
 196   REPORT_COST,
 197   REPORT_ALIGNMENT,
 198   REPORT_DR_DETAILS,
 199   REPORT_BAD_FORM_LOOPS,
 200   REPORT_OUTER_LOOPS,
 201   REPORT_SLP,
 202   REPORT_DETAILS,
 203   /* New verbosity levels should be added before this one.  */
 204   MAX_VERBOSITY_LEVEL
 205 };
 206
 207 #endif /* ! GCC_FLAG_TYPES_H */