gcc/flag-types.h

   1 /* Compilation switch flag type definitions for GCC.
   2    Copyright (C) 1987-2015 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_FLAG_TYPES_H
  21 #define GCC_FLAG_TYPES_H
  22
  23 enum debug_info_type
  24 {
  25   NO_DEBUG,         /* Write no debug info.  */
  26   DBX_DEBUG,        /* Write BSD .stabs for DBX (using dbxout.c).  */
  27   SDB_DEBUG,        /* Write COFF for (old) SDB (using sdbout.c).  */
  28   DWARF2_DEBUG,     /* Write Dwarf v2 debug info (using dwarf2out.c).  */
  29   XCOFF_DEBUG,      /* Write IBM/Xcoff debug info (using dbxout.c).  */
  30   VMS_DEBUG,        /* Write VMS debug info (using vmsdbgout.c).  */
  31   VMS_AND_DWARF2_DEBUG /* Write VMS debug info (using vmsdbgout.c).
  32                           and DWARF v2 debug info (using dwarf2out.c).  */
  33 };
  34
  35 enum debug_info_levels
  36 {
  37   DINFO_LEVEL_NONE,     /* Write no debugging info.  */
  38   DINFO_LEVEL_TERSE,    /* Write minimal info to support tracebacks only.  */
  39   DINFO_LEVEL_NORMAL,   /* Write info for all declarations (and line table).  */
  40   DINFO_LEVEL_VERBOSE   /* Write normal info plus #define/#undef info.  */
  41 };
  42
  43 /* A major contribution to object and executable size is debug
  44    information size.  A major contribution to debug information
  45    size is struct descriptions replicated in several object files.
  46    The following function determines whether or not debug information
  47    should be generated for a given struct.  The indirect parameter
  48    indicates that the struct is being handled indirectly, via
  49    a pointer.  See opts.c for the implementation. */
  50
  51 enum debug_info_usage
  52 {
  53   DINFO_USAGE_DFN,      /* A struct definition. */
  54   DINFO_USAGE_DIR_USE,  /* A direct use, such as the type of a variable. */
  55   DINFO_USAGE_IND_USE,  /* An indirect use, such as through a pointer. */
  56   DINFO_USAGE_NUM_ENUMS /* The number of enumerators. */
  57 };
  58
  59 /* A major contribution to object and executable size is debug
  60    information size.  A major contribution to debug information size
  61    is struct descriptions replicated in several object files. The
  62    following flags attempt to reduce this information.  The basic
  63    idea is to not emit struct debugging information in the current
  64    compilation unit when that information will be generated by
  65    another compilation unit.
  66
  67    Debug information for a struct defined in the current source
  68    file should be generated in the object file.  Likewise the
  69    debug information for a struct defined in a header should be
  70    generated in the object file of the corresponding source file.
  71    Both of these case are handled when the base name of the file of
  72    the struct definition matches the base name of the source file
  73    of the current compilation unit.  This matching emits minimal
  74    struct debugging information.
  75
  76    The base file name matching rule above will fail to emit debug
  77    information for structs defined in system headers.  So a second
  78    category of files includes system headers in addition to files
  79    with matching bases.
  80
  81    The remaining types of files are library headers and application
  82    headers.  We cannot currently distinguish these two types.  */
  83
  84 enum debug_struct_file
  85 {
  86   DINFO_STRUCT_FILE_NONE,   /* Debug no structs. */
  87   DINFO_STRUCT_FILE_BASE,   /* Debug structs defined in files with the
  88                                same base name as the compilation unit. */
  89   DINFO_STRUCT_FILE_SYS,    /* Also debug structs defined in system
  90                                header files.  */
  91   DINFO_STRUCT_FILE_ANY     /* Debug structs defined in all files. */
  92 };
  93
  94 /* Enumerate Objective-c instance variable visibility settings. */
  95
  96 enum ivar_visibility
  97 {
  98   IVAR_VISIBILITY_PRIVATE,
  99   IVAR_VISIBILITY_PROTECTED,
 100   IVAR_VISIBILITY_PUBLIC,
 101   IVAR_VISIBILITY_PACKAGE
 102 };
 103
 104 /* The stack reuse level.  */
 105 enum stack_reuse_level
 106 {
 107   SR_NONE,
 108   SR_NAMED_VARS,
 109   SR_ALL
 110 };
 111
 112 /* The algorithm used for the integrated register allocator (IRA).  */
 113 enum ira_algorithm
 114 {
 115   IRA_ALGORITHM_CB,
 116   IRA_ALGORITHM_PRIORITY
 117 };
 118
 119 /* The regions used for the integrated register allocator (IRA).  */
 120 enum ira_region
 121 {
 122   IRA_REGION_ONE,
 123   IRA_REGION_ALL,
 124   IRA_REGION_MIXED,
 125   /* This value means that there were no options -fira-region on the
 126      command line and that we should choose a value depending on the
 127      used -O option.  */
 128   IRA_REGION_AUTODETECT
 129 };
 130
 131 /* The options for excess precision.  */
 132 enum excess_precision
 133 {
 134   EXCESS_PRECISION_DEFAULT,
 135   EXCESS_PRECISION_FAST,
 136   EXCESS_PRECISION_STANDARD
 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 cost-model.  */
 192 enum vect_cost_model {
 193   VECT_COST_MODEL_UNLIMITED = 0,
 194   VECT_COST_MODEL_CHEAP = 1,
 195   VECT_COST_MODEL_DYNAMIC = 2,
 196   VECT_COST_MODEL_DEFAULT = 3
 197 };
 198
 199
 200 /* Different instrumentation modes.  */
 201 enum sanitize_code {
 202   /* AddressSanitizer.  */
 203   SANITIZE_ADDRESS = 1 << 0,
 204   SANITIZE_USER_ADDRESS = 1 << 1,
 205   SANITIZE_KERNEL_ADDRESS = 1 << 2,
 206   /* ThreadSanitizer.  */
 207   SANITIZE_THREAD = 1 << 3,
 208   /* LeakSanitizer.  */
 209   SANITIZE_LEAK = 1 << 4,
 210   /* UndefinedBehaviorSanitizer.  */
 211   SANITIZE_SHIFT = 1 << 5,
 212   SANITIZE_DIVIDE = 1 << 6,
 213   SANITIZE_UNREACHABLE = 1 << 7,
 214   SANITIZE_VLA = 1 << 8,
 215   SANITIZE_NULL = 1 << 9,
 216   SANITIZE_RETURN = 1 << 10,
 217   SANITIZE_SI_OVERFLOW = 1 << 11,
 218   SANITIZE_BOOL = 1 << 12,
 219   SANITIZE_ENUM = 1 << 13,
 220   SANITIZE_FLOAT_DIVIDE = 1 << 14,
 221   SANITIZE_FLOAT_CAST = 1 << 15,
 222   SANITIZE_BOUNDS = 1UL << 16,
 223   SANITIZE_ALIGNMENT = 1UL << 17,
 224   SANITIZE_NONNULL_ATTRIBUTE = 1UL << 18,
 225   SANITIZE_RETURNS_NONNULL_ATTRIBUTE = 1UL << 19,
 226   SANITIZE_OBJECT_SIZE = 1UL << 20,
 227   SANITIZE_VPTR = 1UL << 21,
 228   SANITIZE_BOUNDS_STRICT = 1UL << 22,
 229   SANITIZE_UNDEFINED = SANITIZE_SHIFT | SANITIZE_DIVIDE | SANITIZE_UNREACHABLE
 230                        | SANITIZE_VLA | SANITIZE_NULL | SANITIZE_RETURN
 231                        | SANITIZE_SI_OVERFLOW | SANITIZE_BOOL | SANITIZE_ENUM
 232                        | SANITIZE_BOUNDS | SANITIZE_ALIGNMENT
 233                        | SANITIZE_NONNULL_ATTRIBUTE
 234                        | SANITIZE_RETURNS_NONNULL_ATTRIBUTE
 235                        | SANITIZE_OBJECT_SIZE | SANITIZE_VPTR,
 236   SANITIZE_NONDEFAULT = SANITIZE_FLOAT_DIVIDE | SANITIZE_FLOAT_CAST
 237                         | SANITIZE_BOUNDS_STRICT
 238 };
 239
 240 /* flag_vtable_verify initialization levels. */
 241 enum vtv_priority {
 242   VTV_NO_PRIORITY       = 0,  /* i.E. Do NOT do vtable verification. */
 243   VTV_STANDARD_PRIORITY = 1,
 244   VTV_PREINIT_PRIORITY  = 2
 245 };
 246
 247 /* flag_lto_partition initialization values.  */
 248 enum lto_partition_model {
 249   LTO_PARTITION_NONE = 0,
 250   LTO_PARTITION_ONE = 1,
 251   LTO_PARTITION_BALANCED = 2,
 252   LTO_PARTITION_1TO1 = 3,
 253   LTO_PARTITION_MAX = 4
 254 };
 255
 256
 257 /* gfortran -finit-real= values.  */
 258
 259 enum gfc_init_local_real
 260 {
 261   GFC_INIT_REAL_OFF = 0,
 262   GFC_INIT_REAL_ZERO,
 263   GFC_INIT_REAL_NAN,
 264   GFC_INIT_REAL_SNAN,
 265   GFC_INIT_REAL_INF,
 266   GFC_INIT_REAL_NEG_INF
 267 };
 268
 269 /* gfortran -fcoarray= values.  */
 270
 271 enum gfc_fcoarray
 272 {
 273   GFC_FCOARRAY_NONE = 0,
 274   GFC_FCOARRAY_SINGLE,
 275   GFC_FCOARRAY_LIB
 276 };
 277
 278
 279 /* gfortran -fconvert= values; used for unformatted I/O.
 280    Keep in sync with GFC_CONVERT_* in gcc/fortran/libgfortran.h.   */
 281 enum gfc_convert
 282 {
 283   GFC_FLAG_CONVERT_NATIVE = 0,
 284   GFC_FLAG_CONVERT_SWAP,
 285   GFC_FLAG_CONVERT_BIG,
 286   GFC_FLAG_CONVERT_LITTLE
 287 };
 288
 289
 290 #endif /* ! GCC_FLAG_TYPES_H */