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 /* This value means that there were no options -fira-region on the 123 command line and that we should choose a value depending on the 124 used -O option. */ 125 IRA_REGION_AUTODETECT 126 }; 127 128 /* The options for excess precision. */ 129 enum excess_precision 130 { 131 EXCESS_PRECISION_DEFAULT, 132 EXCESS_PRECISION_FAST, 133 EXCESS_PRECISION_STANDARD 134 }; 135 136 /* Selection of the graph form. */ 137 enum graph_dump_types 138 { 139 no_graph = 0, 140 vcg 141 }; 142 143 /* Type of stack check. */ 144 enum stack_check_type 145 { 146 /* Do not check the stack. */ 147 NO_STACK_CHECK = 0, 148 149 /* Check the stack generically, i.e. assume no specific support 150 from the target configuration files. */ 151 GENERIC_STACK_CHECK, 152 153 /* Check the stack and rely on the target configuration files to 154 check the static frame of functions, i.e. use the generic 155 mechanism only for dynamic stack allocations. */ 156 STATIC_BUILTIN_STACK_CHECK, 157 158 /* Check the stack and entirely rely on the target configuration 159 files, i.e. do not use the generic mechanism at all. */ 160 FULL_BUILTIN_STACK_CHECK 161 }; 162 163 /* Names for the different levels of -Wstrict-overflow=N. The numeric 164 values here correspond to N. */ 165 166 enum warn_strict_overflow_code 167 { 168 /* Overflow warning that should be issued with -Wall: a questionable 169 construct that is easy to avoid even when using macros. Example: 170 folding (x + CONSTANT > x) to 1. */ 171 WARN_STRICT_OVERFLOW_ALL = 1, 172 /* Overflow warning about folding a comparison to a constant because 173 of undefined signed overflow, other than cases covered by 174 WARN_STRICT_OVERFLOW_ALL. Example: folding (abs (x) >= 0) to 1 175 (this is false when x == INT_MIN). */ 176 WARN_STRICT_OVERFLOW_CONDITIONAL = 2, 177 /* Overflow warning about changes to comparisons other than folding 178 them to a constant. Example: folding (x + 1 > 1) to (x > 0). */ 179 WARN_STRICT_OVERFLOW_COMPARISON = 3, 180 /* Overflow warnings not covered by the above cases. Example: 181 folding ((x * 10) / 5) to (x * 2). */ 182 WARN_STRICT_OVERFLOW_MISC = 4, 183 /* Overflow warnings about reducing magnitude of constants in 184 comparison. Example: folding (x + 2 > y) to (x + 1 >= y). */ 185 WARN_STRICT_OVERFLOW_MAGNITUDE = 5 186 }; 187 188 /* Floating-point contraction mode. */ 189 enum fp_contract_mode { 190 FP_CONTRACT_OFF = 0, 191 FP_CONTRACT_ON = 1, 192 FP_CONTRACT_FAST = 2 193 }; 194 195 /* Vectorizer verbosity levels. */ 196 enum vect_verbosity_levels { 197 REPORT_NONE, 198 REPORT_VECTORIZED_LOCATIONS, 199 REPORT_UNVECTORIZED_LOCATIONS, 200 REPORT_COST, 201 REPORT_ALIGNMENT, 202 REPORT_DR_DETAILS, 203 REPORT_BAD_FORM_LOOPS, 204 REPORT_OUTER_LOOPS, 205 REPORT_SLP, 206 REPORT_DETAILS, 207 /* New verbosity levels should be added before this one. */ 208 MAX_VERBOSITY_LEVEL 209 }; 210 211 #endif /* ! GCC_FLAG_TYPES_H */ 212