| flags.h (38510) | flags.h (50506) |
|---|---|
| 1/* Compilation switch flag definitions for GNU CC. | 1/* Compilation switch flag definitions for GNU CC. |
| 2 Copyright (C) 1987, 1988, 1994, 1995 Free Software Foundation, Inc. | 2 Copyright (C) 1987, 88, 94, 95, 96, 97, 1998 Free Software Foundation, Inc. |
| 3 4This file is part of GNU CC. 5 6GNU CC is free software; you can redistribute it and/or modify 7it under the terms of the GNU General Public License as published by 8the Free Software Foundation; either version 2, or (at your option) 9any later version. 10 --- 11 unchanged lines hidden (view full) --- 22extern char *main_input_filename; 23 24enum debug_info_type 25{ 26 NO_DEBUG, /* Write no debug info. */ 27 DBX_DEBUG, /* Write BSD .stabs for DBX (using dbxout.c). */ 28 SDB_DEBUG, /* Write COFF for (old) SDB (using sdbout.c). */ 29 DWARF_DEBUG, /* Write Dwarf debug info (using dwarfout.c). */ | 3 4This file is part of GNU CC. 5 6GNU CC is free software; you can redistribute it and/or modify 7it under the terms of the GNU General Public License as published by 8the Free Software Foundation; either version 2, or (at your option) 9any later version. 10 --- 11 unchanged lines hidden (view full) --- 22extern char *main_input_filename; 23 24enum debug_info_type 25{ 26 NO_DEBUG, /* Write no debug info. */ 27 DBX_DEBUG, /* Write BSD .stabs for DBX (using dbxout.c). */ 28 SDB_DEBUG, /* Write COFF for (old) SDB (using sdbout.c). */ 29 DWARF_DEBUG, /* Write Dwarf debug info (using dwarfout.c). */ |
| 30 DWARF2_DEBUG, /* Write Dwarf v2 debug info (using dwarf2out.c). */ |
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| 30 XCOFF_DEBUG /* Write IBM/Xcoff debug info (using dbxout.c). */ 31}; 32 33/* Specify which kind of debugging info to generate. */ 34extern enum debug_info_type write_symbols; 35 36enum debug_info_level 37{ --- 9 unchanged lines hidden (view full) --- 47/* Nonzero means use GNU-only extensions in the generated symbolic 48 debugging information. */ 49extern int use_gnu_debug_info_extensions; 50 51/* Nonzero means do optimizations. -opt. */ 52 53extern int optimize; 54 | 31 XCOFF_DEBUG /* Write IBM/Xcoff debug info (using dbxout.c). */ 32}; 33 34/* Specify which kind of debugging info to generate. */ 35extern enum debug_info_type write_symbols; 36 37enum debug_info_level 38{ --- 9 unchanged lines hidden (view full) --- 48/* Nonzero means use GNU-only extensions in the generated symbolic 49 debugging information. */ 50extern int use_gnu_debug_info_extensions; 51 52/* Nonzero means do optimizations. -opt. */ 53 54extern int optimize; 55 |
| 56/* Nonzero means optimize for size. -Os. */ 57 58extern int optimize_size; 59 |
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| 55/* Nonzero means do stupid register allocation. -noreg. 56 Currently, this is 1 if `optimize' is 0. */ 57 58extern int obey_regdecls; 59 60/* Don't print functions as they are compiled and don't print 61 times taken by the various passes. -quiet. */ 62 --- 14 unchanged lines hidden (view full) --- 77/* Nonzero means warn if inline function is too large. */ 78 79extern int warn_inline; 80 81/* Nonzero to warn about variables used before they are initialized. */ 82 83extern int warn_uninitialized; 84 | 60/* Nonzero means do stupid register allocation. -noreg. 61 Currently, this is 1 if `optimize' is 0. */ 62 63extern int obey_regdecls; 64 65/* Don't print functions as they are compiled and don't print 66 times taken by the various passes. -quiet. */ 67 --- 14 unchanged lines hidden (view full) --- 82/* Nonzero means warn if inline function is too large. */ 83 84extern int warn_inline; 85 86/* Nonzero to warn about variables used before they are initialized. */ 87 88extern int warn_uninitialized; 89 |
| 90/* Zero if unknown pragmas are ignored 91 One if the compiler should warn about an unknown pragma not in 92 a system include file. 93 Greater than one if the compiler should warn for all unknown 94 pragmas. */ 95 96extern int warn_unknown_pragmas; 97 |
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| 85/* Nonzero means warn about all declarations which shadow others. */ 86 87extern int warn_shadow; 88 89/* Warn if a switch on an enum fails to have a case for every enum value. */ 90 91extern int warn_switch; 92 --- 26 unchanged lines hidden (view full) --- 119extern int warn_larger_than; 120extern unsigned larger_than_size; 121 122/* Warn if a function returns an aggregate, 123 since there are often incompatible calling conventions for doing this. */ 124 125extern int warn_aggregate_return; 126 | 98/* Nonzero means warn about all declarations which shadow others. */ 99 100extern int warn_shadow; 101 102/* Warn if a switch on an enum fails to have a case for every enum value. */ 103 104extern int warn_switch; 105 --- 26 unchanged lines hidden (view full) --- 132extern int warn_larger_than; 133extern unsigned larger_than_size; 134 135/* Warn if a function returns an aggregate, 136 since there are often incompatible calling conventions for doing this. */ 137 138extern int warn_aggregate_return; 139 |
| 140/* Nonzero means that -Wformat accepts certain non-ANSI formats. */ 141 142extern int flag_format_extensions; 143 |
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| 127/* Nonzero if generating code to do profiling. */ 128 129extern int profile_flag; 130 131/* Nonzero if generating code to do profiling on the basis of basic blocks. */ 132 133extern int profile_block_flag; 134 | 144/* Nonzero if generating code to do profiling. */ 145 146extern int profile_flag; 147 148/* Nonzero if generating code to do profiling on the basis of basic blocks. */ 149 150extern int profile_block_flag; 151 |
| 152/* Nonzero if generating code to profile program flow graph arcs. */ 153 154extern int profile_arc_flag; 155 156/* Nonzero if generating info for gcov to calculate line test coverage. */ 157 158extern int flag_test_coverage; 159 160/* Nonzero indicates that branch taken probabilities should be calculated. */ 161 162extern int flag_branch_probabilities; 163 |
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| 135/* Nonzero for -pedantic switch: warn about anything 136 that standard C forbids. */ 137 138extern int pedantic; 139 140/* Temporarily suppress certain warnings. 141 This is set while reading code from a system header file. */ 142 --- 55 unchanged lines hidden (view full) --- 198 199extern int flag_unroll_loops; 200 201/* Nonzero enables loop unrolling in unroll.c. All loops are unrolled. 202 This is generally not a win. */ 203 204extern int flag_unroll_all_loops; 205 | 164/* Nonzero for -pedantic switch: warn about anything 165 that standard C forbids. */ 166 167extern int pedantic; 168 169/* Temporarily suppress certain warnings. 170 This is set while reading code from a system header file. */ 171 --- 55 unchanged lines hidden (view full) --- 227 228extern int flag_unroll_loops; 229 230/* Nonzero enables loop unrolling in unroll.c. All loops are unrolled. 231 This is generally not a win. */ 232 233extern int flag_unroll_all_loops; 234 |
| 235/* Nonzero forces all invariant computations in loops to be moved 236 outside the loop. */ 237 238extern int flag_move_all_movables; 239 240/* Nonzero forces all general induction variables in loops to be 241 strength reduced. */ 242 243extern int flag_reduce_all_givs; 244 |
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| 206/* Nonzero for -fcse-follow-jumps: 207 have cse follow jumps to do a more extensive job. */ 208 209extern int flag_cse_follow_jumps; 210 211/* Nonzero for -fcse-skip-blocks: 212 have cse follow a branch around a block. */ 213 --- 33 unchanged lines hidden (view full) --- 247 248/* Nonzero allows GCC to violate some IEEE or ANSI rules regarding math 249 operations in the interest of optimization. For example it allows 250 GCC to assume arguments to sqrt are nonnegative numbers, allowing 251 faster code for sqrt to be generated. */ 252 253extern int flag_fast_math; 254 | 245/* Nonzero for -fcse-follow-jumps: 246 have cse follow jumps to do a more extensive job. */ 247 248extern int flag_cse_follow_jumps; 249 250/* Nonzero for -fcse-skip-blocks: 251 have cse follow a branch around a block. */ 252 --- 33 unchanged lines hidden (view full) --- 286 287/* Nonzero allows GCC to violate some IEEE or ANSI rules regarding math 288 operations in the interest of optimization. For example it allows 289 GCC to assume arguments to sqrt are nonnegative numbers, allowing 290 faster code for sqrt to be generated. */ 291 292extern int flag_fast_math; 293 |
| 294/* Nonzero means to run loop optimizations twice. */ 295 296extern int flag_rerun_loop_opt; 297 298/* Nonzero means to assume that a structure or an array reference at 299 a varying address cannot alias a scalar at a fixed address. */ 300 301extern int flag_structure_noalias; 302 |
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| 255/* Nonzero means make functions that look like good inline candidates 256 go inline. */ 257 258extern int flag_inline_functions; 259 260/* Nonzero for -fkeep-inline-functions: even if we make a function 261 go inline everywhere, keep its definition around for debugging 262 purposes. */ --- 23 unchanged lines hidden (view full) --- 286/* flag_schedule_insns means schedule insns within basic blocks (before 287 local_alloc). 288 flag_schedule_insns_after_reload means schedule insns after 289 global_alloc. */ 290 291extern int flag_schedule_insns; 292extern int flag_schedule_insns_after_reload; 293 | 303/* Nonzero means make functions that look like good inline candidates 304 go inline. */ 305 306extern int flag_inline_functions; 307 308/* Nonzero for -fkeep-inline-functions: even if we make a function 309 go inline everywhere, keep its definition around for debugging 310 purposes. */ --- 23 unchanged lines hidden (view full) --- 334/* flag_schedule_insns means schedule insns within basic blocks (before 335 local_alloc). 336 flag_schedule_insns_after_reload means schedule insns after 337 global_alloc. */ 338 339extern int flag_schedule_insns; 340extern int flag_schedule_insns_after_reload; 341 |
| 294/* Nonzero means put things in delayed-branch slots if supported. */ | 342#ifdef HAIFA 343/* The following flags have effect only for scheduling before register 344 allocation: |
| 295 | 345 |
| 296extern int flag_delayed_branch; | 346 flag_schedule_interblock means schedule insns accross basic blocks. 347 flag_schedule_speculative means allow speculative motion of non-load insns. 348 flag_schedule_speculative_load means allow speculative motion of some 349 load insns. 350 flag_schedule_speculative_load_dangerous allows speculative motion of more 351 load insns. */ |
| 297 | 352 |
| 298/* Nonzero means to run cleanups after CALL_EXPRs. */ | 353extern int flag_schedule_interblock; 354extern int flag_schedule_speculative; 355extern int flag_schedule_speculative_load; 356extern int flag_schedule_speculative_load_dangerous; |
| 299 | 357 |
| 300extern int flag_short_temps; | 358/* flag_on_branch_count_reg means try to replace add-1,compare,branch tupple 359 by a cheaper branch, on a count register. */ 360extern int flag_branch_on_count_reg; 361#endif /* HAIFA */ |
| 301 | 362 |
| 363 364/* Nonzero means put things in delayed-branch slots if supported. */ 365 366extern int flag_delayed_branch; 367 |
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| 302/* Nonzero means pretend it is OK to examine bits of target floats, 303 even if that isn't true. The resulting code will have incorrect constants, 304 but the same series of instructions that the native compiler would make. */ 305 306extern int flag_pretend_float; 307 308/* Nonzero means change certain warnings into errors. 309 Usually these are warnings about failure to conform to some standard. */ 310 311extern int flag_pedantic_errors; 312 313/* Nonzero means generate position-independent code. 314 This is not fully implemented yet. */ 315 316extern int flag_pic; 317 | 368/* Nonzero means pretend it is OK to examine bits of target floats, 369 even if that isn't true. The resulting code will have incorrect constants, 370 but the same series of instructions that the native compiler would make. */ 371 372extern int flag_pretend_float; 373 374/* Nonzero means change certain warnings into errors. 375 Usually these are warnings about failure to conform to some standard. */ 376 377extern int flag_pedantic_errors; 378 379/* Nonzero means generate position-independent code. 380 This is not fully implemented yet. */ 381 382extern int flag_pic; 383 |
| 318/* Nonzero means place uninitialized global data in the bss section. */ | 384/* Nonzero means generate extra code for exception handling and enable 385 exception handling. */ |
| 319 | 386 |
| 387extern int flag_exceptions; 388 389/* Nonzero means use the new model for exception handling. Replaces 390 -DNEW_EH_MODEL as a compile option. */ 391 392extern int flag_new_exceptions; 393 394/* Nonzero means don't place uninitialized global data in common storage 395 by default. */ 396 |
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| 320extern int flag_no_common; 321 322/* -finhibit-size-directive inhibits output of .size for ELF. 323 This is used only for compiling crtstuff.c, 324 and it may be extended to other effects 325 needed for crtstuff.c on other systems. */ 326extern int flag_inhibit_size_directive; 327 | 397extern int flag_no_common; 398 399/* -finhibit-size-directive inhibits output of .size for ELF. 400 This is used only for compiling crtstuff.c, 401 and it may be extended to other effects 402 needed for crtstuff.c on other systems. */ 403extern int flag_inhibit_size_directive; 404 |
| 405/* Nonzero means place each function into its own section on those platforms 406 which support arbitrary section names and unlimited numbers of sections. */ 407 408extern int flag_function_sections; 409 |
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| 328/* -fverbose-asm causes extra commentary information to be produced in 329 the generated assembly code (to make it more readable). This option 330 is generally only of use to those who actually need to read the | 410/* -fverbose-asm causes extra commentary information to be produced in 411 the generated assembly code (to make it more readable). This option 412 is generally only of use to those who actually need to read the |
| 331 generated assembly code (perhaps while debugging the compiler itself). */ | 413 generated assembly code (perhaps while debugging the compiler itself). 414 -fno-verbose-asm, the default, causes the extra information 415 to not be added and is useful when comparing two assembler files. */ |
| 332 333extern int flag_verbose_asm; 334 | 416 417extern int flag_verbose_asm; 418 |
| 419/* -dA causes debug information to be produced in 420 the generated assembly code (to make it more readable). This option 421 is generally only of use to those who actually need to read the 422 generated assembly code (perhaps while debugging the compiler itself). 423 Currently, this switch is only used by dwarfout.c; however, it is intended 424 to be a catchall for printing debug information in the assembler file. */ 425 426extern int flag_debug_asm; 427 |
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| 335/* -fgnu-linker specifies use of the GNU linker for initializations. 336 -fno-gnu-linker says that collect will be used. */ 337extern int flag_gnu_linker; 338 339/* Tag all structures with __attribute__(packed) */ 340extern int flag_pack_struct; 341 | 428/* -fgnu-linker specifies use of the GNU linker for initializations. 429 -fno-gnu-linker says that collect will be used. */ 430extern int flag_gnu_linker; 431 432/* Tag all structures with __attribute__(packed) */ 433extern int flag_pack_struct; 434 |
| 342/* Nonzero means that -Wformat accepts certain non-ANSI formats. */ | 435/* This flag is only tested if alias checking is enabled. 436 0 if pointer arguments may alias each other. True in C. 437 1 if pointer arguments may not alias each other but may alias 438 global variables. 439 2 if pointer arguments may not alias each other and may not 440 alias global variables. True in Fortran. 441 The value is ignored if flag_alias_check is 0. */ 442extern int flag_argument_noalias; |
| 343 | 443 |
| 344extern int flag_format_extensions; | 444/* Nonzero if we should do (language-dependent) alias analysis. 445 Typically, this analysis will assume that expressions of certain 446 types do not alias expressions of certain other types. Only used 447 if alias analysis (in general) is enabled. */ 448extern int flag_strict_aliasing; 449 450/* Emit code to check for stack overflow; also may cause large objects 451 to be allocated dynamically. */ 452extern int flag_stack_check; 453 454/* Do the full regmove optimization pass. */ 455extern int flag_regmove; |
| 345 346/* Other basic status info about current function. */ 347 348/* Nonzero means current function must be given a frame pointer. 349 Set in stmt.c if anything is allocated on the stack there. 350 Set in reload1.c if anything is allocated on the stack there. */ 351 352extern int frame_pointer_needed; --- 7 unchanged lines hidden (view full) --- 360 from nested functions. */ 361 362extern int current_function_has_nonlocal_label; 363 364/* Nonzero if function being compiled has nonlocal gotos to parent 365 function. */ 366 367extern int current_function_has_nonlocal_goto; | 456 457/* Other basic status info about current function. */ 458 459/* Nonzero means current function must be given a frame pointer. 460 Set in stmt.c if anything is allocated on the stack there. 461 Set in reload1.c if anything is allocated on the stack there. */ 462 463extern int frame_pointer_needed; --- 7 unchanged lines hidden (view full) --- 471 from nested functions. */ 472 473extern int current_function_has_nonlocal_label; 474 475/* Nonzero if function being compiled has nonlocal gotos to parent 476 function. */ 477 478extern int current_function_has_nonlocal_goto; |
| 479 480/* Nonzero if this function has a computed goto. 481 482 It is computed during find_basic_blocks or during stupid life 483 analysis. */ 484 485extern int current_function_has_computed_jump; 486 487/* Nonzero if GCC must add code to check memory access (used by Checker). */ 488 489extern int flag_check_memory_usage; 490 491/* Nonzero if GCC must prefix function names (used with 492 flag_check_memory_usage). */ 493 494extern int flag_prefix_function_name; 495/* Nonzero if the current function is a thunk, so we should try to cut 496 corners where we can. */ 497extern int current_function_is_thunk; 498 499/* Value of the -G xx switch, and whether it was passed or not. */ 500extern int g_switch_value; 501extern int g_switch_set; |
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