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Commit | Line | Data |
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d7b42618 | 1 | ; Options for the language- and target-independent parts of the compiler. |
50431bc4 | 2 | |
5460e1fc | 3 | ; Copyright (C) 2003, 2004, 2005, 2006, 2007, 2008, 2009, 2010, 2011, 2012 |
28a08168 | 4 | ; Free Software Foundation, Inc. |
d7b42618 NB |
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 | |
9dcd6f09 | 10 | ; Software Foundation; either version 3, or (at your option) any later |
d7b42618 | 11 | ; version. |
c22cacf3 | 12 | ; |
d7b42618 NB |
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. | |
c22cacf3 | 17 | ; |
d7b42618 | 18 | ; You should have received a copy of the GNU General Public License |
9dcd6f09 NC |
19 | ; along with GCC; see the file COPYING3. If not see |
20 | ; <http://www.gnu.org/licenses/>. | |
d7b42618 | 21 | |
71733172 | 22 | ; See the GCC internals manual (options.texi) for a description of this file's format. |
d7b42618 NB |
23 | |
24 | ; Please try to keep this file in ASCII collating order. | |
25 | ||
e90afde6 JM |
26 | Variable |
27 | int target_flags | |
28 | ||
46625112 JM |
29 | Variable |
30 | int optimize | |
31 | ||
32 | Variable | |
33 | int optimize_size | |
34 | ||
0a8134ca JM |
35 | ; Not used directly to control optimizations, only to save -Ofast |
36 | ; setting for "optimize" attributes. | |
37 | Variable | |
38 | int optimize_fast | |
39 | ||
a7d0d30f JM |
40 | ; True if this is the lto front end. This is used to disable gimple |
41 | ; generation and lowering passes that are normally run on the output | |
42 | ; of a front end. These passes must be bypassed for lto since they | |
43 | ; have already been done before the gimple was written. | |
44 | Variable | |
45 | bool in_lto_p = false | |
46 | ||
a75bfaa6 JM |
47 | ; 0 means straightforward implementation of complex divide acceptable. |
48 | ; 1 means wide ranges of inputs must work for complex divide. | |
49 | ; 2 means C99-like requirements for complex multiply and divide. | |
50 | Variable | |
51 | int flag_complex_method = 1 | |
52 | ||
53 | ; Nonzero if subexpressions must be evaluated from left-to-right. | |
54 | Variable | |
55 | int flag_evaluation_order = 0 | |
56 | ||
a75bfaa6 JM |
57 | ; Language specific warning pass for unused results. |
58 | Variable | |
59 | bool flag_warn_unused_result = false | |
60 | ||
48476d13 JM |
61 | Variable |
62 | int *param_values | |
63 | ||
d5478783 JM |
64 | ; Nonzero if we should write GIMPLE bytecode for link-time optimization. |
65 | Variable | |
66 | int flag_generate_lto | |
67 | ||
68 | ; True to warn about any objects definitions whose size is larger | |
69 | ; than N bytes. Also want about function definitions whose returned | |
70 | ; values are larger than N bytes, where N is 'larger_than_size'. | |
71 | Variable | |
72 | bool warn_larger_than | |
73 | ||
74 | Variable | |
75 | HOST_WIDE_INT larger_than_size | |
76 | ||
77 | ; True to warn about any function whose frame size is larger | |
78 | ; than N bytes. | |
79 | Variable | |
80 | bool warn_frame_larger_than | |
81 | ||
82 | Variable | |
83 | HOST_WIDE_INT frame_larger_than_size | |
84 | ||
85 | ; Nonzero means we should be saving declaration info into a .X file. | |
86 | Variable | |
87 | int flag_gen_aux_info = 0 | |
88 | ||
89 | ; Nonzero if we are compiling code for a shared library, zero for | |
90 | ; executable. | |
91 | Variable | |
92 | int flag_shlib | |
93 | ||
6a1f6c9c JM |
94 | ; These two are really VEC(char_p,heap) *. |
95 | ||
96 | Variable | |
97 | void *flag_instrument_functions_exclude_functions | |
98 | ||
99 | Variable | |
100 | void *flag_instrument_functions_exclude_files | |
101 | ||
69ccdddb JM |
102 | ; Generic structs (e.g. templates not explicitly specialized) |
103 | ; may not have a compilation unit associated with them, and so | |
104 | ; may need to be treated differently from ordinary structs. | |
105 | ; | |
106 | ; Structs only handled by reference (indirectly), will also usually | |
107 | ; not need as much debugging information. | |
108 | ||
109 | Variable | |
110 | enum debug_struct_file debug_struct_ordinary[DINFO_USAGE_NUM_ENUMS] = { DINFO_STRUCT_FILE_ANY, DINFO_STRUCT_FILE_ANY, DINFO_STRUCT_FILE_ANY } | |
111 | ||
112 | Variable | |
113 | enum debug_struct_file debug_struct_generic[DINFO_USAGE_NUM_ENUMS] = { DINFO_STRUCT_FILE_ANY, DINFO_STRUCT_FILE_ANY, DINFO_STRUCT_FILE_ANY } | |
114 | ||
0576d21f JM |
115 | ; True if we should exit after parsing options. |
116 | Variable | |
117 | bool exit_after_options | |
118 | ||
119 | ; Type(s) of debugging information we are producing (if any). See | |
120 | ; flag-types.h for the definitions of the different possible types of | |
121 | ; debugging information. | |
122 | Variable | |
123 | enum debug_info_type write_symbols = NO_DEBUG | |
124 | ||
125 | ; Level of debugging information we are producing. See flag-types.h | |
126 | ; for the definitions of the different possible levels. | |
127 | Variable | |
128 | enum debug_info_levels debug_info_level = DINFO_LEVEL_NONE | |
129 | ||
130 | ; Nonzero means use GNU-only extensions in the generated symbolic | |
131 | ; debugging information. Currently, this only has an effect when | |
132 | ; write_symbols is set to DBX_DEBUG, XCOFF_DEBUG, or DWARF_DEBUG. | |
133 | Variable | |
134 | bool use_gnu_debug_info_extensions | |
135 | ||
299404a1 JM |
136 | ; Original value of maximum field alignment in bytes, specified via |
137 | ; -fpack-struct=<value>. | |
138 | Variable | |
139 | unsigned int initial_max_fld_align = TARGET_DEFAULT_PACK_STRUCT | |
140 | ||
7cd23050 JM |
141 | Variable |
142 | enum vect_verbosity_levels user_vect_verbosity_level = MAX_VERBOSITY_LEVEL | |
143 | ||
5e471ea6 JM |
144 | ; Type of stack check. |
145 | Variable | |
146 | enum stack_check_type flag_stack_check = NO_STACK_CHECK | |
147 | ||
a11e0df4 EB |
148 | ; True if stack usage information needs to be computed. |
149 | Variable | |
150 | bool flag_stack_usage_info = false | |
151 | ||
299404a1 JM |
152 | ; -dA causes debug commentary information to be produced in |
153 | ; the generated assembly code (to make it more readable). This option | |
154 | ; is generally only of use to those who actually need to read the | |
155 | ; generated assembly code (perhaps while debugging the compiler itself). | |
156 | ; Currently, this switch is only used by dwarf2out.c; however, it is intended | |
157 | ; to be a catchall for printing debug information in the assembler file. | |
158 | Variable | |
159 | int flag_debug_asm | |
160 | ||
161 | ; -dP causes the rtl to be emitted as a comment in assembly. | |
162 | Variable | |
163 | int flag_dump_rtl_in_asm | |
164 | ||
165 | ; Whether -da was passed (used only in handle_common_deferred_options). | |
166 | Variable | |
167 | bool flag_dump_all_passed | |
168 | ||
169 | ; Other flags saying which kinds of debugging dump have been requested. | |
170 | ||
171 | Variable | |
172 | int rtl_dump_and_exit | |
173 | ||
174 | Variable | |
175 | int flag_print_asm_name | |
176 | ||
177 | Variable | |
178 | enum graph_dump_types graph_dump_format = no_graph | |
179 | ||
a803773f JM |
180 | ; Name of top-level original source file (what was input to cpp). |
181 | ; This comes from the #-command at the beginning of the actual input. | |
182 | ; If there isn't any there, then this is the cc1 input file name. | |
183 | Variable | |
184 | const char *main_input_filename | |
185 | ||
186 | ; Pointer to base name in main_input_filename, with directories and a | |
187 | ; single final extension removed, and the length of this base | |
188 | ; name. | |
189 | ||
190 | Variable | |
191 | const char *main_input_basename | |
192 | ||
193 | Variable | |
194 | int main_input_baselength | |
195 | ||
299404a1 JM |
196 | ; Which options have been printed by --help. |
197 | Variable | |
198 | char *help_printed | |
199 | ||
e6d4b984 JM |
200 | ; Which enums have been printed by --help. 0 = not printed, no |
201 | ; relevant options seen, 1 = relevant option seen, not yet printed, 2 | |
202 | ; = printed. | |
203 | Variable | |
204 | char *help_enum_printed | |
205 | ||
299404a1 JM |
206 | ; The number of columns for --help output. |
207 | Variable | |
208 | unsigned int help_columns | |
209 | ||
210 | ; Whether this options structure has been through finish_options | |
211 | Variable | |
212 | bool flag_opts_finished | |
213 | ||
603349bf JM |
214 | ### |
215 | Driver | |
216 | ||
e200444e JM |
217 | -assemble |
218 | Driver Alias(S) | |
219 | ||
220 | -compile | |
221 | Driver Alias(c) | |
222 | ||
223 | -coverage | |
224 | Driver Alias(coverage) | |
225 | ||
226 | -debug | |
227 | Common Alias(g) | |
228 | ||
229 | -dump | |
230 | Common Separate Alias(d) | |
231 | ||
232 | -dump= | |
233 | Common Joined Alias(d) | |
234 | ||
235 | -dumpbase | |
236 | Common Separate Alias(dumpbase) | |
237 | ||
238 | -dumpdir | |
239 | Common Separate Alias(dumpdir) | |
240 | ||
241 | -entry | |
242 | Driver Separate Alias(e) | |
243 | ||
244 | -entry= | |
245 | Driver Joined Alias(e) | |
246 | ||
247 | -extra-warnings | |
248 | Common Warning Alias(Wextra) | |
249 | ||
250 | -for-assembler | |
251 | Driver Separate Alias(Xassembler) | |
252 | ||
253 | -for-assembler= | |
254 | Driver JoinedOrMissing Alias(Xassembler) | |
255 | ||
256 | -for-linker | |
257 | Driver Separate Alias(Xlinker) | |
258 | ||
259 | -for-linker= | |
260 | Driver JoinedOrMissing Alias(Xlinker) | |
261 | ||
262 | -force-link | |
263 | Driver Separate Alias(u) | |
264 | ||
265 | -force-link= | |
266 | Driver Joined Alias(u) | |
267 | ||
d185d268 | 268 | -help |
e200444e | 269 | Common Driver Var(help_flag) |
cf03fd63 | 270 | Display this information |
d185d268 | 271 | |
c662432e | 272 | -help= |
603349bf | 273 | Common Driver Report Joined |
c662432e | 274 | --help=<class> Display descriptions of a specific class of options. <class> is one or more of optimizers, target, warnings, undocumented, params |
903caebf | 275 | |
e200444e JM |
276 | -language |
277 | Driver Separate Alias(x) | |
278 | ||
279 | -language= | |
280 | Driver Joined Alias(x) | |
281 | ||
282 | -library-directory | |
283 | Driver Separate Alias(L) | |
284 | ||
285 | -library-directory= | |
286 | Driver Joined Alias(L) | |
287 | ||
288 | -no-canonical-prefixes | |
289 | Driver Alias(no-canonical-prefixes) | |
290 | ||
291 | -no-standard-libraries | |
292 | Driver Alias(nostdlib) | |
293 | ||
294 | -no-warnings | |
295 | Common Alias(w) | |
296 | ||
297 | -optimize | |
298 | Common Alias(O) | |
299 | ||
300 | -output | |
301 | Common Driver Separate Alias(o) MissingArgError(missing filename after %qs) | |
302 | ||
303 | -output= | |
304 | Common Driver Joined Alias(o) MissingArgError(missing filename after %qs) | |
305 | ||
306 | -pass-exit-codes | |
307 | Driver Alias(pass-exit-codes) | |
308 | ||
309 | -pedantic | |
c1771a20 | 310 | Common Alias(Wpedantic) |
e200444e JM |
311 | |
312 | -pedantic-errors | |
313 | Common Alias(pedantic-errors) | |
314 | ||
315 | -pie | |
5460e1fc | 316 | Driver Alias(pie) |
e200444e JM |
317 | |
318 | -pipe | |
319 | Driver Alias(pipe) | |
320 | ||
321 | -prefix | |
322 | Driver Separate Alias(B) | |
323 | ||
324 | -prefix= | |
325 | Driver JoinedOrMissing Alias(B) | |
326 | ||
327 | -preprocess | |
328 | Driver Alias(E) | |
329 | ||
330 | -print-file-name | |
331 | Driver Separate Alias(print-file-name=) | |
332 | ||
333 | -print-file-name= | |
334 | Driver JoinedOrMissing Alias(print-file-name=) | |
335 | ||
336 | -print-libgcc-file-name | |
337 | Driver Alias(print-libgcc-file-name) | |
338 | ||
339 | -print-multi-directory | |
340 | Driver Alias(print-multi-directory) | |
341 | ||
342 | -print-multi-lib | |
343 | Driver Alias(print-multi-lib) | |
344 | ||
345 | -print-multi-os-directory | |
346 | Driver Alias(print-multi-os-directory) | |
347 | ||
348 | -print-prog-name | |
349 | Driver Separate Alias(print-prog-name=) | |
350 | ||
351 | -print-prog-name= | |
352 | Driver JoinedOrMissing Alias(print-prog-name=) | |
353 | ||
354 | -print-search-dirs | |
355 | Driver Alias(print-search-dirs) | |
356 | ||
357 | -print-sysroot | |
358 | Driver Alias(print-sysroot) | |
359 | ||
360 | -print-sysroot-headers-suffix | |
361 | Driver Alias(print-sysroot-headers-suffix) | |
362 | ||
363 | -profile | |
364 | Common Alias(p) | |
365 | ||
366 | -save-temps | |
367 | Driver Alias(save-temps) | |
368 | ||
369 | -shared | |
5460e1fc | 370 | Driver Alias(shared) |
e200444e JM |
371 | |
372 | -specs | |
373 | Driver Separate Alias(specs=) | |
374 | ||
375 | -specs= | |
376 | Driver Joined Alias(specs=) | |
377 | ||
378 | -static | |
379 | Driver Alias(static) | |
380 | ||
381 | -symbolic | |
382 | Driver Alias(symbolic) | |
383 | ||
d185d268 | 384 | -target-help |
603349bf | 385 | Common Driver |
c662432e NC |
386 | Alias for --help=target |
387 | ||
e200444e JM |
388 | -time |
389 | Driver Alias(time) | |
390 | ||
391 | -verbose | |
392 | Driver Alias(v) | |
393 | ||
394 | ;; The driver used to convert options such as --help into forms such | |
395 | ;; as -fhelp; the following four entries are for compatibility with | |
396 | ;; any direct uses of those (undocumented) -f forms | |
c662432e | 397 | fhelp |
e200444e | 398 | Common Driver Alias(-help) |
c662432e NC |
399 | |
400 | fhelp= | |
e200444e | 401 | Common Driver Joined Alias(-help=) |
c662432e NC |
402 | |
403 | ftarget-help | |
e200444e | 404 | Common Driver Alias(-target-help) |
c662432e | 405 | |
41fd0f9b | 406 | fversion |
e200444e | 407 | Common Driver Alias(-version) |
41fd0f9b | 408 | |
c662432e NC |
409 | -param |
410 | Common Separate | |
411 | --param <param>=<value> Set parameter <param> to value. See below for a complete list of parameters | |
d185d268 | 412 | |
e200444e JM |
413 | -param= |
414 | Common Joined Alias(-param) | |
415 | ||
416 | -sysroot | |
417 | Driver Separate Alias(-sysroot=) | |
418 | ||
603349bf JM |
419 | -sysroot= |
420 | Driver JoinedOrMissing | |
421 | ||
d185d268 | 422 | -version |
603349bf JM |
423 | Common Driver |
424 | ||
425 | B | |
426 | Driver Joined Separate | |
427 | ||
428 | E | |
429 | Driver | |
d185d268 | 430 | |
d9d16a19 JM |
431 | L |
432 | Driver Joined Separate | |
433 | ||
dd9f93dc JM |
434 | N |
435 | Driver | |
436 | ||
903caebf | 437 | O |
ab442df7 | 438 | Common JoinedOrMissing Optimization |
cf03fd63 | 439 | -O<number> Set optimization level to <number> |
903caebf NB |
440 | |
441 | Os | |
ab442df7 | 442 | Common Optimization |
cf03fd63 | 443 | Optimize for space rather than speed |
903caebf | 444 | |
be6d3f0e RG |
445 | Ofast |
446 | Common Optimization | |
447 | Optimize for speed disregarding exact standards compliance | |
448 | ||
dd9f93dc JM |
449 | Q |
450 | Driver | |
451 | ||
452 | Qn | |
453 | Driver Negative(Qy) | |
454 | ||
455 | Qy | |
456 | Driver Negative(Qn) | |
457 | ||
6d721f67 JM |
458 | R |
459 | Driver Joined Separate | |
460 | ||
603349bf JM |
461 | S |
462 | Driver | |
463 | ||
6d721f67 JM |
464 | T |
465 | Driver Joined Separate | |
466 | ||
467 | Tbss | |
468 | Driver Separate | |
469 | ||
e69d7376 JM |
470 | Tbss= |
471 | Driver Joined | |
472 | ||
6d721f67 JM |
473 | Tdata |
474 | Driver Separate | |
475 | ||
e69d7376 JM |
476 | Tdata= |
477 | Driver Joined | |
478 | ||
6d721f67 JM |
479 | Ttext |
480 | Driver Separate | |
481 | ||
e69d7376 JM |
482 | Ttext= |
483 | Driver Joined | |
484 | ||
903caebf | 485 | W |
5de8299c | 486 | Common RejectNegative Warning Alias(Wextra) |
28786366 | 487 | This switch is deprecated; use -Wextra instead |
903caebf | 488 | |
603349bf JM |
489 | Wa, |
490 | Driver JoinedOrMissing | |
491 | ||
492 | Wl, | |
493 | Driver JoinedOrMissing | |
494 | ||
495 | Wp, | |
496 | Driver JoinedOrMissing | |
497 | ||
e01cc6dc | 498 | Waggregate-return |
c662432e | 499 | Common Var(warn_aggregate_return) Warning |
28786366 | 500 | Warn about returning structures, unions or arrays |
e01cc6dc | 501 | |
590b1f2d | 502 | Warray-bounds |
21af5cdf | 503 | Common Var(warn_array_bounds) Warning |
590b1f2d DM |
504 | Warn if an array is accessed out of bounds |
505 | ||
5c498b10 | 506 | Wattributes |
c662432e | 507 | Common Var(warn_attributes) Init(1) Warning |
5c498b10 DD |
508 | Warn about inappropriate attribute usage |
509 | ||
e01cc6dc | 510 | Wcast-align |
c662432e | 511 | Common Var(warn_cast_align) Warning |
28786366 | 512 | Warn about pointer casts which increase alignment |
e01cc6dc | 513 | |
87cf0651 SB |
514 | Wcpp |
515 | Common Var(warn_cpp) Init(1) Warning | |
516 | Warn when a #warning directive is encountered | |
517 | ||
e01cc6dc | 518 | Wdeprecated-declarations |
c662432e | 519 | Common Var(warn_deprecated_decl) Init(1) Warning |
28786366 | 520 | Warn about uses of __attribute__((deprecated)) declarations |
e01cc6dc NB |
521 | |
522 | Wdisabled-optimization | |
c662432e | 523 | Common Var(warn_disabled_optimization) Warning |
28786366 | 524 | Warn when an optimization pass is disabled |
e01cc6dc NB |
525 | |
526 | Werror | |
50431bc4 | 527 | Common Var(warnings_are_errors) |
28786366 | 528 | Treat all warnings as errors |
e01cc6dc | 529 | |
79cf5994 DD |
530 | Werror= |
531 | Common Joined | |
532 | Treat specified warning as error | |
533 | ||
903caebf | 534 | Wextra |
62a67c94 | 535 | Common Var(extra_warnings) Warning |
cf03fd63 | 536 | Print extra (possibly unwanted) warnings |
903caebf | 537 | |
c65a01af | 538 | Wfatal-errors |
50431bc4 | 539 | Common Var(flag_fatal_errors) |
c65a01af RG |
540 | Exit on the first error occurred |
541 | ||
a214518f SP |
542 | Wframe-larger-than= |
543 | Common RejectNegative Joined UInteger | |
f94e1d66 | 544 | -Wframe-larger-than=<number> Warn if a function's stack frame requires more than <number> bytes |
a214518f | 545 | |
a3a704a4 MH |
546 | Wfree-nonheap-object |
547 | Common Var(warn_free_nonheap_object) Init(1) Warning | |
548 | Warn when attempting to free a non-heap object | |
549 | ||
e01cc6dc | 550 | Winline |
c662432e | 551 | Common Var(warn_inline) Warning |
28786366 | 552 | Warn when an inlined function cannot be inlined |
e01cc6dc | 553 | |
86951993 AM |
554 | Winvalid-memory-model |
555 | Common Var(warn_invalid_memory_model) Init(1) Warning | |
556 | Warn when an atomic memory model parameter is known to be outside the valid range. | |
557 | ||
e01cc6dc | 558 | Wlarger-than- |
5de8299c | 559 | Common RejectNegative Joined Warning Undocumented Alias(Wlarger-than=) |
e8fc888d MLI |
560 | |
561 | Wlarger-than= | |
562 | Common RejectNegative Joined UInteger Warning | |
563 | -Wlarger-than=<number> Warn if an object is larger than <number> bytes | |
e01cc6dc | 564 | |
f9cc1a70 | 565 | Wunsafe-loop-optimizations |
c662432e | 566 | Common Var(warn_unsafe_loop_optimizations) Warning |
f9cc1a70 PB |
567 | Warn if the loop cannot be optimized due to nontrivial assumptions. |
568 | ||
e01cc6dc | 569 | Wmissing-noreturn |
94ee6979 | 570 | Common Alias(Wsuggest-attribute=noreturn) |
e01cc6dc | 571 | |
71834ad3 | 572 | Woverflow |
c662432e | 573 | Common Var(warn_overflow) Init(1) Warning |
71834ad3 RS |
574 | Warn about overflow in arithmetic expressions |
575 | ||
e01cc6dc | 576 | Wpacked |
c662432e | 577 | Common Var(warn_packed) Warning |
28786366 | 578 | Warn when the packed attribute has no effect on struct layout |
e01cc6dc NB |
579 | |
580 | Wpadded | |
c662432e | 581 | Common Var(warn_padded) Warning |
28786366 | 582 | Warn when padding is required to align structure members |
e01cc6dc | 583 | |
c1771a20 MLI |
584 | Wpedantic |
585 | Common Var(pedantic) Warning | |
586 | Issue warnings needed for strict compliance to the standard | |
587 | ||
e01cc6dc | 588 | Wshadow |
c662432e | 589 | Common Var(warn_shadow) Warning |
28786366 | 590 | Warn when one local variable shadows another |
e01cc6dc | 591 | |
7d69de61 | 592 | Wstack-protector |
c662432e | 593 | Common Var(warn_stack_protect) Warning |
7d69de61 RH |
594 | Warn when not issuing stack smashing protection for some reason |
595 | ||
a11e0df4 EB |
596 | Wstack-usage= |
597 | Common Joined RejectNegative UInteger Var(warn_stack_usage) Init(-1) Warning | |
598 | Warn if stack usage might be larger than specified amount | |
599 | ||
e01cc6dc | 600 | Wstrict-aliasing |
c662432e | 601 | Common Warning |
28786366 | 602 | Warn about code which might break strict aliasing rules |
e01cc6dc | 603 | |
5399d643 | 604 | Wstrict-aliasing= |
fcfbd84e | 605 | Common Joined RejectNegative UInteger Var(warn_strict_aliasing) Init(-1) Warning |
5399d643 JW |
606 | Warn about code which might break strict aliasing rules |
607 | ||
6ac01510 | 608 | Wstrict-overflow |
21af5cdf | 609 | Common Warning |
6ac01510 ILT |
610 | Warn about optimizations that assume that signed overflow is undefined |
611 | ||
612 | Wstrict-overflow= | |
fcfbd84e | 613 | Common Joined RejectNegative UInteger Var(warn_strict_overflow) Init(-1) Warning |
6ac01510 ILT |
614 | Warn about optimizations that assume that signed overflow is undefined |
615 | ||
5dc16b19 MLI |
616 | Wsuggest-attribute=const |
617 | Common Var(warn_suggest_attribute_const) Warning | |
618 | Warn about functions which might be candidates for __attribute__((const)) | |
619 | ||
620 | Wsuggest-attribute=pure | |
621 | Common Var(warn_suggest_attribute_pure) Warning | |
622 | Warn about functions which might be candidates for __attribute__((pure)) | |
623 | ||
7ea6b6cf JH |
624 | Wsuggest-attribute=noreturn |
625 | Common Var(warn_suggest_attribute_noreturn) Warning | |
626 | Warn about functions which might be candidates for __attribute__((noreturn)) | |
627 | ||
e01cc6dc | 628 | Wswitch |
c662432e | 629 | Common Var(warn_switch) Warning |
28786366 | 630 | Warn about enumerated switches, with no default, missing a case |
e01cc6dc NB |
631 | |
632 | Wswitch-default | |
c662432e | 633 | Common Var(warn_switch_default) Warning |
28786366 | 634 | Warn about enumerated switches missing a \"default:\" statement |
e01cc6dc NB |
635 | |
636 | Wswitch-enum | |
c662432e | 637 | Common Var(warn_switch_enum) Warning |
28786366 | 638 | Warn about all enumerated switches missing a specific case |
e01cc6dc NB |
639 | |
640 | Wsystem-headers | |
c662432e | 641 | Common Var(warn_system_headers) Warning |
f3fdaec4 | 642 | Do not suppress warnings from system headers |
e01cc6dc | 643 | |
8ffadef9 MG |
644 | Wtrampolines |
645 | Common Var(warn_trampolines) Warning | |
646 | Warn whenever a trampoline is generated | |
647 | ||
faebccf9 | 648 | Wtype-limits |
95744782 | 649 | Common Var(warn_type_limits) Warning EnabledBy(Wextra) |
faebccf9 DN |
650 | Warn if a comparison is always true or always false due to the limited range of the data type |
651 | ||
e01cc6dc | 652 | Wuninitialized |
7d5a5747 | 653 | Common Var(warn_uninitialized) Warning EnabledBy(Wextra) |
28786366 | 654 | Warn about uninitialized automatic variables |
e01cc6dc | 655 | |
2f964ad6 | 656 | Wmaybe-uninitialized |
7d5a5747 | 657 | Common Var(warn_maybe_uninitialized) Warning EnabledBy(Wuninitialized) |
2f964ad6 XDL |
658 | Warn about maybe uninitialized automatic variables |
659 | ||
e01cc6dc | 660 | Wunreachable-code |
2d2bd949 | 661 | Common Ignore |
bc3c12a2 | 662 | Does nothing. Preserved for backward compatibility. |
e01cc6dc | 663 | |
903caebf | 664 | Wunused |
e73f7547 | 665 | Common Var(warn_unused) Init(0) Warning |
cf03fd63 | 666 | Enable all -Wunused- warnings |
903caebf | 667 | |
ebfbbdc5 JJ |
668 | Wunused-but-set-parameter |
669 | Common Var(warn_unused_but_set_parameter) Init(-1) Warning | |
670 | Warn when a function parameter is only set, otherwise unused | |
671 | ||
672 | Wunused-but-set-variable | |
7d5a5747 | 673 | Common Var(warn_unused_but_set_variable) Warning EnabledBy(Wunused) |
ebfbbdc5 JJ |
674 | Warn when a variable is only set, otherwise unused |
675 | ||
e01cc6dc | 676 | Wunused-function |
7d5a5747 | 677 | Common Var(warn_unused_function) Warning EnabledBy(Wunused) |
28786366 | 678 | Warn when a function is unused |
e01cc6dc NB |
679 | |
680 | Wunused-label | |
7d5a5747 | 681 | Common Var(warn_unused_label) Warning EnabledBy(Wunused) |
28786366 | 682 | Warn when a label is unused |
e01cc6dc NB |
683 | |
684 | Wunused-parameter | |
e73f7547 | 685 | Common Var(warn_unused_parameter) Init(-1) Warning |
28786366 | 686 | Warn when a function parameter is unused |
e01cc6dc NB |
687 | |
688 | Wunused-value | |
7d5a5747 | 689 | Common Var(warn_unused_value) Warning EnabledBy(Wunused) |
28786366 | 690 | Warn when an expression value is unused |
e01cc6dc NB |
691 | |
692 | Wunused-variable | |
7d5a5747 | 693 | Common Var(warn_unused_variable) Warning EnabledBy(Wunused) |
28786366 | 694 | Warn when a variable is unused |
e01cc6dc | 695 | |
16c1c158 | 696 | Wcoverage-mismatch |
650cfcab NV |
697 | Common Var(warn_coverage_mismatch) Init(1) Warning |
698 | Warn in case profiles in -fprofile-use do not match | |
16c1c158 | 699 | |
cdbb5ba3 AS |
700 | Wvector-operation-performance |
701 | Common Var(warn_vector_operation_performance) Warning | |
702 | Warn when a vector operation is compiled outside the SIMD | |
703 | ||
603349bf JM |
704 | Xassembler |
705 | Driver Separate | |
706 | ||
707 | Xlinker | |
708 | Driver Separate | |
709 | ||
710 | Xpreprocessor | |
711 | Driver Separate | |
712 | ||
dd9f93dc JM |
713 | Z |
714 | Driver | |
715 | ||
d185d268 | 716 | aux-info |
d5478783 | 717 | Common Separate Var(aux_info_file_name) |
cf03fd63 | 718 | -aux-info <file> Emit declaration information into <file> |
d185d268 NB |
719 | |
720 | aux-info= | |
5de8299c | 721 | Common Joined Alias(aux-info) |
d185d268 NB |
722 | |
723 | auxbase | |
d5478783 | 724 | Common Separate RejectDriver Var(aux_base_name) |
d185d268 NB |
725 | |
726 | auxbase-strip | |
603349bf JM |
727 | Common Separate RejectDriver |
728 | ||
e200444e JM |
729 | coverage |
730 | Driver | |
731 | ||
603349bf JM |
732 | c |
733 | Driver | |
d185d268 NB |
734 | |
735 | d | |
736 | Common Joined | |
cf03fd63 | 737 | -d<letters> Enable dumps from specific passes of the compiler |
d185d268 NB |
738 | |
739 | dumpbase | |
d5478783 | 740 | Common Separate Var(dump_base_name) |
cf03fd63 | 741 | -dumpbase <file> Set the file basename to be used for dumps |
d185d268 | 742 | |
d7fb0a6d | 743 | dumpdir |
d5478783 | 744 | Common Separate Var(dump_dir_name) |
316fc112 | 745 | -dumpdir <dir> Set the directory name to be used for dumps |
d7fb0a6d | 746 | |
603349bf JM |
747 | dumpmachine |
748 | Driver | |
749 | ||
750 | dumpspecs | |
751 | Driver | |
752 | ||
753 | dumpversion | |
754 | Driver | |
755 | ||
e200444e JM |
756 | e |
757 | Driver Joined Separate | |
758 | ||
fa381cb2 JM |
759 | ; This option has historically been passed down to the linker by an |
760 | ; accident of a %{e*} spec, so ensure it continues to be passed down | |
761 | ; as a single option. The supported option for this purpose is | |
762 | ; -rdynamic. See PR 47390. | |
763 | export-dynamic | |
764 | Driver Undocumented | |
765 | ||
31b66477 KC |
766 | ; The version of the C++ ABI in use. The following values are allowed: |
767 | ; | |
768 | ; 0: The version of the ABI believed most conformant with the C++ ABI | |
769 | ; specification. This ABI may change as bugs are discovered and fixed. | |
770 | ; Therefore, 0 will not necessarily indicate the same ABI in different | |
771 | ; versions of G++. | |
772 | ; | |
773 | ; 1: The version of the ABI first used in G++ 3.2. | |
774 | ; | |
abfe01ce JM |
775 | ; 2: The version of the ABI first used in G++ 3.4 (and current default). |
776 | ; | |
777 | ; 3: The version of the ABI that fixes the missing underscore | |
778 | ; in template non-type arguments of pointer type. | |
779 | ; | |
780 | ; 4: The version of the ABI that introduces unambiguous mangling of | |
55af847f | 781 | ; vector types. First selectable in G++ 4.5. |
99a8d35b | 782 | ; |
67e18edb | 783 | ; 5: The version of the ABI that ignores attribute const/noreturn |
55af847f | 784 | ; in function pointer mangling, and corrects mangling of decltype and |
67e18edb | 785 | ; function parameters used in other parameters and the return type. |
55af847f | 786 | ; First selectable in G++ 4.6. |
67e18edb | 787 | ; |
4b6aaa99 JM |
788 | ; 6: The version of the ABI that doesn't promote scoped enums to int and |
789 | ; changes the mangling of template argument packs, const/static_cast, | |
790 | ; prefix ++ and --, and a class scope function used as a template | |
791 | ; argument. | |
967444bb JM |
792 | ; First selectable in G++ 4.7. |
793 | ; | |
a3ddb738 JM |
794 | ; 7: The version of the ABI that treats nullptr_t as a builtin type. |
795 | ; First selectable in G++ 4.8. | |
31b66477 KC |
796 | ; Additional positive integers will be assigned as new versions of |
797 | ; the ABI become the default version of the ABI. | |
57782ad8 | 798 | fabi-version= |
fcfbd84e | 799 | Common Joined RejectNegative UInteger Var(flag_abi_version) Init(2) |
57782ad8 | 800 | |
6ff3a151 | 801 | falign-functions |
ab442df7 | 802 | Common Report Var(align_functions,0) Optimization UInteger |
f3fdaec4 | 803 | Align the start of functions |
6ff3a151 | 804 | |
058de654 | 805 | falign-functions= |
d5478783 | 806 | Common RejectNegative Joined UInteger Var(align_functions) |
058de654 | 807 | |
6ff3a151 | 808 | falign-jumps |
ab442df7 | 809 | Common Report Var(align_jumps,0) Optimization UInteger |
f3fdaec4 | 810 | Align labels which are only reached by jumping |
6ff3a151 | 811 | |
058de654 | 812 | falign-jumps= |
d5478783 | 813 | Common RejectNegative Joined UInteger Var(align_jumps) |
058de654 | 814 | |
6ff3a151 | 815 | falign-labels |
ab442df7 | 816 | Common Report Var(align_labels,0) Optimization UInteger |
f3fdaec4 | 817 | Align all labels |
6ff3a151 | 818 | |
058de654 | 819 | falign-labels= |
d5478783 | 820 | Common RejectNegative Joined UInteger Var(align_labels) |
058de654 | 821 | |
6ff3a151 | 822 | falign-loops |
3020190e | 823 | Common Report Var(align_loops,0) Optimization UInteger |
f3fdaec4 | 824 | Align the start of loops |
6ff3a151 | 825 | |
058de654 | 826 | falign-loops= |
d5478783 | 827 | Common RejectNegative Joined UInteger Var(align_loops) |
058de654 | 828 | |
6ff3a151 | 829 | fargument-alias |
2d2bd949 | 830 | Common Ignore |
0d3c82d6 | 831 | Does nothing. Preserved for backward compatibility. |
6ff3a151 NB |
832 | |
833 | fargument-noalias | |
2d2bd949 | 834 | Common Ignore |
0d3c82d6 | 835 | Does nothing. Preserved for backward compatibility. |
6ff3a151 NB |
836 | |
837 | fargument-noalias-global | |
2d2bd949 | 838 | Common Ignore |
0d3c82d6 | 839 | Does nothing. Preserved for backward compatibility. |
6ff3a151 | 840 | |
0698a1d2 | 841 | fargument-noalias-anything |
2d2bd949 | 842 | Common Ignore |
0d3c82d6 | 843 | Does nothing. Preserved for backward compatibility. |
0698a1d2 | 844 | |
6ff3a151 | 845 | fasynchronous-unwind-tables |
c662432e | 846 | Common Report Var(flag_asynchronous_unwind_tables) Optimization |
f3fdaec4 | 847 | Generate unwind tables that are exact at each instruction boundary |
6ff3a151 | 848 | |
6fb5fa3c DB |
849 | fauto-inc-dec |
850 | Common Report Var(flag_auto_inc_dec) Init(1) | |
851 | Generate auto-inc/dec instructions | |
852 | ||
31b66477 KC |
853 | ; -fcheck-bounds causes gcc to generate array bounds checks. |
854 | ; For C, C++ and ObjC: defaults off. | |
855 | ; For Java: defaults to on. | |
856 | ; For Fortran: defaults to off. | |
6ff3a151 | 857 | fbounds-check |
50431bc4 | 858 | Common Report Var(flag_bounds_check) |
f3fdaec4 | 859 | Generate code to check bounds before indexing arrays |
6ff3a151 NB |
860 | |
861 | fbranch-count-reg | |
c662432e | 862 | Common Report Var(flag_branch_on_count_reg) Init(1) Optimization |
f3fdaec4 | 863 | Replace add, compare, branch with branch on count register |
6ff3a151 NB |
864 | |
865 | fbranch-probabilities | |
c662432e | 866 | Common Report Var(flag_branch_probabilities) Optimization |
f3fdaec4 | 867 | Use profiling information for branch probabilities |
6ff3a151 | 868 | |
de32c0cb | 869 | fbranch-target-load-optimize |
c662432e | 870 | Common Report Var(flag_branch_target_load_optimize) Optimization |
f3fdaec4 | 871 | Perform branch target load optimization before prologue / epilogue threading |
de32c0cb NB |
872 | |
873 | fbranch-target-load-optimize2 | |
c662432e | 874 | Common Report Var(flag_branch_target_load_optimize2) Optimization |
f3fdaec4 | 875 | Perform branch target load optimization after prologue / epilogue threading |
de32c0cb | 876 | |
1194fc79 | 877 | fbtr-bb-exclusive |
c662432e | 878 | Common Report Var(flag_btr_bb_exclusive) Optimization |
1194fc79 R |
879 | Restrict target load migration not to re-use registers in any basic block |
880 | ||
058de654 | 881 | fcall-saved- |
21bf1558 | 882 | Common Joined RejectNegative Var(common_deferred_options) Defer |
cf03fd63 | 883 | -fcall-saved-<register> Mark <register> as being preserved across functions |
058de654 NB |
884 | |
885 | fcall-used- | |
21bf1558 | 886 | Common Joined RejectNegative Var(common_deferred_options) Defer |
cf03fd63 | 887 | -fcall-used-<register> Mark <register> as being corrupted by function calls |
058de654 | 888 | |
31b66477 KC |
889 | ; Nonzero for -fcaller-saves: allocate values in regs that need to |
890 | ; be saved across function calls, if that produces overall better code. | |
891 | ; Optional now, so people can test it. | |
de32c0cb | 892 | fcaller-saves |
c662432e | 893 | Common Report Var(flag_caller_saves) Optimization |
f3fdaec4 | 894 | Save registers around function calls |
de32c0cb | 895 | |
3d8864c0 SP |
896 | fcheck-data-deps |
897 | Common Report Var(flag_check_data_deps) | |
898 | Compare the results of several data dependence analyzers. | |
899 | ||
ccaeeafe NC |
900 | fcombine-stack-adjustments |
901 | Common Report Var(flag_combine_stack_adjustments) Optimization | |
902 | Looks for opportunities to reduce stack adjustments and stack references. | |
903 | ||
6ff3a151 | 904 | fcommon |
c662432e | 905 | Common Report Var(flag_no_common,0) Optimization |
f3fdaec4 | 906 | Do not put uninitialized globals in the common section |
6ff3a151 | 907 | |
603349bf JM |
908 | fcompare-debug |
909 | Driver | |
910 | ; Converted by the driver to -fcompare-debug= options. | |
911 | ||
2153915d | 912 | fcompare-debug= |
603349bf | 913 | Common Driver JoinedOrMissing RejectNegative Var(flag_compare_debug_opt) |
f94e1d66 | 914 | -fcompare-debug[=<opts>] Compile with and without e.g. -gtoggle, and compare the final-insns dump |
2153915d AO |
915 | |
916 | fcompare-debug-second | |
5e471ea6 | 917 | Common Driver RejectNegative Var(flag_compare_debug) |
2153915d AO |
918 | Run only the second compilation of -fcompare-debug |
919 | ||
e692f276 RH |
920 | fcompare-elim |
921 | Common Report Var(flag_compare_elim_after_reload) Optimization | |
922 | Perform comparison elimination after register allocation has finished | |
923 | ||
b5b8b0ac AO |
924 | fconserve-stack |
925 | Common Var(flag_conserve_stack) Optimization | |
926 | Do not perform optimizations increasing noticeably stack usage | |
927 | ||
6ff3a151 | 928 | fcprop-registers |
c662432e | 929 | Common Report Var(flag_cprop_registers) Optimization |
f3fdaec4 | 930 | Perform a register copy-propagation optimization pass |
6ff3a151 | 931 | |
de32c0cb | 932 | fcrossjumping |
c662432e | 933 | Common Report Var(flag_crossjumping) Optimization |
f3fdaec4 | 934 | Perform cross-jumping optimization |
de32c0cb NB |
935 | |
936 | fcse-follow-jumps | |
c662432e | 937 | Common Report Var(flag_cse_follow_jumps) Optimization |
f3fdaec4 | 938 | When running CSE, follow jumps to their targets |
de32c0cb NB |
939 | |
940 | fcse-skip-blocks | |
2d2bd949 | 941 | Common Ignore |
5f39ad47 | 942 | Does nothing. Preserved for backward compatibility. |
de32c0cb | 943 | |
c7463669 | 944 | fcx-limited-range |
5e46b0c6 | 945 | Common Report Var(flag_cx_limited_range) Optimization SetByCombined |
c7463669 RH |
946 | Omit range reduction step when performing complex division |
947 | ||
35085f76 JB |
948 | fcx-fortran-rules |
949 | Common Report Var(flag_cx_fortran_rules) Optimization | |
950 | Complex multiplication and division follow Fortran rules | |
951 | ||
6ff3a151 | 952 | fdata-sections |
c662432e | 953 | Common Report Var(flag_data_sections) Optimization |
f3fdaec4 | 954 | Place data items into their own section |
6ff3a151 | 955 | |
0a090f42 | 956 | fdbg-cnt-list |
299404a1 | 957 | Common Report Var(common_deferred_options) Defer |
0a090f42 SP |
958 | List all available debugging counters with their limits and counts. |
959 | ||
6fb5fa3c | 960 | fdbg-cnt= |
299404a1 | 961 | Common RejectNegative Joined Var(common_deferred_options) Defer |
f94e1d66 | 962 | -fdbg-cnt=<counter>:<limit>[,<counter>:<limit>,...] Set the debug counter limit. |
6fb5fa3c | 963 | |
c8aea42c | 964 | fdebug-prefix-map= |
299404a1 | 965 | Common Joined RejectNegative Var(common_deferred_options) Defer |
c8aea42c PB |
966 | Map one directory name to another in debug information |
967 | ||
76f9db36 | 968 | fdebug-types-section |
98095aa3 | 969 | Common Report Var(flag_debug_types_section) Init(0) |
76f9db36 JJ |
970 | Output .debug_types section when using DWARF v4 debuginfo. |
971 | ||
31b66477 KC |
972 | ; Nonzero for -fdefer-pop: don't pop args after each function call |
973 | ; instead save them up to pop many calls' args with one insns. | |
de32c0cb | 974 | fdefer-pop |
c662432e | 975 | Common Report Var(flag_defer_pop) Optimization |
f3fdaec4 | 976 | Defer popping functions args from stack until later |
de32c0cb NB |
977 | |
978 | fdelayed-branch | |
c662432e | 979 | Common Report Var(flag_delayed_branch) Optimization |
f3fdaec4 | 980 | Attempt to fill delay slots of branch instructions |
de32c0cb | 981 | |
2da02156 EB |
982 | fdelete-dead-exceptions |
983 | Common Report Var(flag_delete_dead_exceptions) Init(0) | |
984 | Delete dead instructions that may throw exceptions | |
985 | ||
de32c0cb | 986 | fdelete-null-pointer-checks |
1ad2f450 | 987 | Common Report Var(flag_delete_null_pointer_checks) Init(1) Optimization |
f3fdaec4 | 988 | Delete useless null pointer checks |
de32c0cb | 989 | |
05842ff5 MJ |
990 | fdevirtualize |
991 | Common Report Var(flag_devirtualize) Optimization | |
992 | Try to convert virtual calls to direct ones. | |
993 | ||
de32c0cb | 994 | fdiagnostics-show-location= |
e6d4b984 | 995 | Common Joined RejectNegative Enum(diagnostic_prefixing_rule) |
cf03fd63 | 996 | -fdiagnostics-show-location=[once|every-line] How often to emit source location at the beginning of line-wrapped diagnostics |
de32c0cb | 997 | |
e6d4b984 JM |
998 | ; Required for these enum values. |
999 | SourceInclude | |
1000 | pretty-print.h | |
1001 | ||
1002 | Enum | |
1003 | Name(diagnostic_prefixing_rule) Type(int) | |
1004 | ||
1005 | EnumValue | |
1006 | Enum(diagnostic_prefixing_rule) String(once) Value(DIAGNOSTICS_SHOW_PREFIX_ONCE) | |
1007 | ||
1008 | EnumValue | |
1009 | Enum(diagnostic_prefixing_rule) String(every-line) Value(DIAGNOSTICS_SHOW_PREFIX_EVERY_LINE) | |
1010 | ||
9fec0042 MLI |
1011 | fdiagnostics-show-caret |
1012 | Common Var(flag_diagnostics_show_caret) Init(1) | |
1013 | Show the source line with a caret indicating the column | |
1014 | ||
ccf08a6e | 1015 | fdiagnostics-show-option |
c7d0de89 | 1016 | Common Var(flag_diagnostics_show_option) Init(1) |
c85ce869 | 1017 | Amend appropriate diagnostic messages with the command line option that controls them |
ccf08a6e | 1018 | |
226c52aa XDL |
1019 | fdisable- |
1020 | Common Joined RejectNegative Var(common_deferred_options) Defer | |
1021 | -fdisable-[tree|rtl|ipa]-<pass>=range1+range2 disables an optimization pass | |
1022 | ||
1023 | fenable- | |
1024 | Common Joined RejectNegative Var(common_deferred_options) Defer | |
1025 | -fenable-[tree|rtl|ipa]-<pass>=range1+range2 enables an optimization pass | |
1026 | ||
6de9cd9a | 1027 | fdump- |
21bf1558 | 1028 | Common Joined RejectNegative Var(common_deferred_options) Defer |
6de9cd9a DN |
1029 | -fdump-<type> Dump various compiler internals to a file |
1030 | ||
d1583032 JM |
1031 | fdump-final-insns |
1032 | Driver RejectNegative | |
1033 | ||
2153915d AO |
1034 | fdump-final-insns= |
1035 | Common RejectNegative Joined Var(flag_dump_final_insns) | |
1036 | -fdump-final-insns=filename Dump to filename the insns at the end of translation | |
1037 | ||
c6a13190 ILT |
1038 | fdump-go-spec= |
1039 | Common RejectNegative Joined Var(flag_dump_go_spec) | |
1040 | -fdump-go-spec=filename Write all declarations to file as Go code | |
1041 | ||
24a7799e R |
1042 | fdump-noaddr |
1043 | Common Report Var(flag_dump_noaddr) | |
1044 | Suppress output of addresses in debugging dumps | |
1045 | ||
deced1e2 XDL |
1046 | fdump-passes |
1047 | Common Var(flag_dump_passes) Init(0) | |
1048 | Dump optimization passes | |
1049 | ||
6ff3a151 | 1050 | fdump-unnumbered |
e90afde6 | 1051 | Common Report Var(flag_dump_unnumbered) |
24a7799e | 1052 | Suppress output of instruction numbers, line number notes and addresses in debugging dumps |
6ff3a151 | 1053 | |
2aa7c49b | 1054 | fdump-unnumbered-links |
e90afde6 | 1055 | Common Report Var(flag_dump_unnumbered_links) |
2aa7c49b AO |
1056 | Suppress output of previous and next insn numbers in debugging dumps |
1057 | ||
b5b8b0ac AO |
1058 | fdwarf2-cfi-asm |
1059 | Common Report Var(flag_dwarf2_cfi_asm) Init(HAVE_GAS_CFI_DIRECTIVE) | |
1060 | Enable CFI tables via GAS assembler directives. | |
1061 | ||
355866de | 1062 | fearly-inlining |
c662432e | 1063 | Common Report Var(flag_early_inlining) Init(1) Optimization |
355866de RG |
1064 | Perform early inlining |
1065 | ||
de32c0cb | 1066 | feliminate-dwarf2-dups |
50431bc4 | 1067 | Common Report Var(flag_eliminate_dwarf2_dups) |
f3fdaec4 | 1068 | Perform DWARF2 duplicate elimination |
de32c0cb | 1069 | |
07ffa034 MJ |
1070 | fipa-sra |
1071 | Common Report Var(flag_ipa_sra) Init(0) Optimization | |
1072 | Perform interprocedural reduction of aggregates | |
1073 | ||
6a08f7b3 | 1074 | feliminate-unused-debug-symbols |
50431bc4 | 1075 | Common Report Var(flag_debug_only_used_symbols) |
f3fdaec4 | 1076 | Perform unused type elimination in debug info |
6a08f7b3 | 1077 | |
de32c0cb | 1078 | feliminate-unused-debug-types |
50431bc4 | 1079 | Common Report Var(flag_eliminate_unused_debug_types) Init(1) |
f3fdaec4 | 1080 | Perform unused type elimination in debug info |
de32c0cb | 1081 | |
e713adf6 | 1082 | femit-class-debug-always |
eae8e474 | 1083 | Common Report Var(flag_emit_class_debug_always) Init(0) |
e713adf6 CD |
1084 | Do not suppress C++ class debug information. |
1085 | ||
6ff3a151 | 1086 | fexceptions |
c662432e | 1087 | Common Report Var(flag_exceptions) Optimization |
f3fdaec4 | 1088 | Enable exception handling |
6ff3a151 | 1089 | |
de32c0cb | 1090 | fexpensive-optimizations |
c662432e | 1091 | Common Report Var(flag_expensive_optimizations) Optimization |
f3fdaec4 | 1092 | Perform a number of minor, expensive optimizations |
de32c0cb | 1093 | |
8ce94e44 | 1094 | fexcess-precision= |
e6d4b984 | 1095 | Common Joined RejectNegative Enum(excess_precision) Var(flag_excess_precision_cmdline) Init(EXCESS_PRECISION_DEFAULT) |
8ce94e44 JM |
1096 | -fexcess-precision=[fast|standard] Specify handling of excess floating-point precision |
1097 | ||
e6d4b984 JM |
1098 | Enum |
1099 | Name(excess_precision) Type(enum excess_precision) UnknownError(unknown excess precision style %qs) | |
1100 | ||
1101 | EnumValue | |
1102 | Enum(excess_precision) String(fast) Value(EXCESS_PRECISION_FAST) | |
1103 | ||
1104 | EnumValue | |
1105 | Enum(excess_precision) String(standard) Value(EXCESS_PRECISION_STANDARD) | |
1106 | ||
058de654 NB |
1107 | ffast-math |
1108 | Common | |
1109 | ||
cc8547a7 AK |
1110 | ffat-lto-objects |
1111 | Common Var(flag_fat_lto_objects) Init(1) | |
1112 | Output lto objects containing both the intermediate language and binary output. | |
1113 | ||
6ff3a151 | 1114 | ffinite-math-only |
5e46b0c6 | 1115 | Common Report Var(flag_finite_math_only) Optimization SetByCombined |
f3fdaec4 | 1116 | Assume no NaNs or infinities are generated |
6ff3a151 | 1117 | |
058de654 | 1118 | ffixed- |
21bf1558 | 1119 | Common Joined RejectNegative Var(common_deferred_options) Defer |
cf03fd63 | 1120 | -ffixed-<register> Mark <register> as being unavailable to the compiler |
058de654 | 1121 | |
de32c0cb | 1122 | ffloat-store |
c662432e | 1123 | Common Report Var(flag_float_store) Optimization |
31b66477 | 1124 | Don't allocate floats and doubles in extended-precision registers |
de32c0cb NB |
1125 | |
1126 | fforce-addr | |
2d2bd949 | 1127 | Common Ignore |
3de5e93a | 1128 | Does nothing. Preserved for backward compatibility. |
de32c0cb | 1129 | |
2ca2b607 SB |
1130 | fforward-propagate |
1131 | Common Report Var(flag_forward_propagate) Optimization | |
a52b023a PB |
1132 | Perform a forward propagation pass on RTL |
1133 | ||
16949072 | 1134 | ffp-contract= |
e6d4b984 | 1135 | Common Joined RejectNegative Enum(fp_contract_mode) Var(flag_fp_contract_mode) Init(FP_CONTRACT_FAST) |
16949072 RG |
1136 | -ffp-contract=[off|on|fast] Perform floating-point expression contraction. |
1137 | ||
e6d4b984 JM |
1138 | Enum |
1139 | Name(fp_contract_mode) Type(enum fp_contract_mode) UnknownError(unknown floating point contraction style %qs) | |
1140 | ||
1141 | EnumValue | |
1142 | Enum(fp_contract_mode) String(off) Value(FP_CONTRACT_OFF) | |
1143 | ||
1144 | ; Not implemented, fall back to conservative FP_CONTRACT_OFF. | |
1145 | EnumValue | |
1146 | Enum(fp_contract_mode) String(on) Value(FP_CONTRACT_OFF) | |
1147 | ||
1148 | EnumValue | |
1149 | Enum(fp_contract_mode) String(fast) Value(FP_CONTRACT_FAST) | |
1150 | ||
31b66477 KC |
1151 | ; Nonzero means don't put addresses of constant functions in registers. |
1152 | ; Used for compiling the Unix kernel, where strange substitutions are | |
1153 | ; done on the assembly output. | |
de32c0cb | 1154 | ffunction-cse |
50431bc4 | 1155 | Common Report Var(flag_no_function_cse,0) |
f3fdaec4 | 1156 | Allow function addresses to be held in registers |
de32c0cb | 1157 | |
6ff3a151 | 1158 | ffunction-sections |
50431bc4 | 1159 | Common Report Var(flag_function_sections) |
f3fdaec4 | 1160 | Place each function into its own section |
6ff3a151 | 1161 | |
de32c0cb | 1162 | fgcse |
c662432e | 1163 | Common Report Var(flag_gcse) Optimization |
f3fdaec4 | 1164 | Perform global common subexpression elimination |
de32c0cb NB |
1165 | |
1166 | fgcse-lm | |
c662432e | 1167 | Common Report Var(flag_gcse_lm) Init(1) Optimization |
f3fdaec4 | 1168 | Perform enhanced load motion during global common subexpression elimination |
de32c0cb NB |
1169 | |
1170 | fgcse-sm | |
c662432e | 1171 | Common Report Var(flag_gcse_sm) Init(0) Optimization |
f3fdaec4 | 1172 | Perform store motion after global common subexpression elimination |
de32c0cb | 1173 | |
f5f2e3cd | 1174 | fgcse-las |
c662432e | 1175 | Common Report Var(flag_gcse_las) Init(0) Optimization |
f9957958 MH |
1176 | Perform redundant load after store elimination in global common subexpression |
1177 | elimination | |
1178 | ||
1179 | fgcse-after-reload | |
c662432e | 1180 | Common Report Var(flag_gcse_after_reload) Optimization |
f9957958 | 1181 | Perform global common subexpression elimination after register allocation |
c85ce869 | 1182 | has finished |
f5f2e3cd | 1183 | |
d0a58904 | 1184 | ; This option is not documented yet as its semantics will change. |
f8bf9252 SP |
1185 | fgraphite |
1186 | Common Report Var(flag_graphite) | |
1187 | Enable in and out of Graphite representation | |
1188 | ||
204b560f SP |
1189 | fgraphite-identity |
1190 | Common Report Var(flag_graphite_identity) Optimization | |
1191 | Enable Graphite Identity transformation | |
1192 | ||
372a6eb8 BS |
1193 | fhoist-adjacent-loads |
1194 | Common Report Var(flag_hoist_adjacent_loads) Optimization | |
1195 | Enable hoisting adjacent loads to encourage generating conditional move | |
1196 | instructions | |
1197 | ||
3cf0e270 SP |
1198 | floop-parallelize-all |
1199 | Common Report Var(flag_loop_parallelize_all) Optimization | |
204b560f SP |
1200 | Mark all loops as parallel |
1201 | ||
f8bf9252 SP |
1202 | floop-strip-mine |
1203 | Common Report Var(flag_loop_strip_mine) Optimization | |
1204 | Enable Loop Strip Mining transformation | |
1205 | ||
1206 | floop-interchange | |
1207 | Common Report Var(flag_loop_interchange) Optimization | |
1208 | Enable Loop Interchange transformation | |
1209 | ||
1210 | floop-block | |
1211 | Common Report Var(flag_loop_block) Optimization | |
1212 | Enable Loop Blocking transformation | |
1213 | ||
0a35513e AH |
1214 | fgnu-tm |
1215 | Common Report Var(flag_tm) | |
1216 | Enable support for GNU transactional memory | |
1217 | ||
98af4c9f | 1218 | floop-flatten |
093193be MK |
1219 | Common Ignore |
1220 | Does nothing. Preserved for backward compatibility. | |
98af4c9f | 1221 | |
b60cc080 TG |
1222 | floop-nest-optimize |
1223 | Common Report Var(flag_loop_optimize_isl) Optimization | |
1224 | Enable the ISL based loop nest optimizer | |
1225 | ||
6a78b724 DD |
1226 | fstrict-volatile-bitfields |
1227 | Common Report Var(flag_strict_volatile_bitfields) Init(-1) | |
1228 | Force bitfield accesses to match their type width | |
1229 | ||
6ff3a151 | 1230 | fguess-branch-probability |
c662432e | 1231 | Common Report Var(flag_guess_branch_prob) Optimization |
f3fdaec4 | 1232 | Enable guessing of branch probabilities |
6ff3a151 | 1233 | |
31b66477 KC |
1234 | ; Nonzero means ignore `#ident' directives. 0 means handle them. |
1235 | ; Generate position-independent code for executables if possible | |
1236 | ; On SVR4 targets, it also controls whether or not to emit a | |
1237 | ; string identifying the compiler. | |
6ff3a151 | 1238 | fident |
50431bc4 | 1239 | Common Report Var(flag_no_ident,0) |
f3fdaec4 | 1240 | Process #ident directives |
6ff3a151 | 1241 | |
de32c0cb | 1242 | fif-conversion |
c662432e | 1243 | Common Report Var(flag_if_conversion) Optimization |
f3fdaec4 | 1244 | Perform conversion of conditional jumps to branchless equivalents |
de32c0cb NB |
1245 | |
1246 | fif-conversion2 | |
c662432e | 1247 | Common Report Var(flag_if_conversion2) Optimization |
f3fdaec4 | 1248 | Perform conversion of conditional jumps to conditional execution |
de32c0cb | 1249 | |
87e2a8fd XDL |
1250 | fstack-reuse= |
1251 | Common Joined RejectNegative Enum(stack_reuse_level) Var(flag_stack_reuse) Init(SR_ALL) | |
1252 | -fstack-reuse=[all|named_vars|none] Set stack reuse level for local variables. | |
1253 | ||
1254 | Enum | |
1255 | Name(stack_reuse_level) Type(enum stack_reuse_level) UnknownError(unknown Stack Reuse Level %qs) | |
1256 | ||
1257 | EnumValue | |
1258 | Enum(stack_reuse_level) String(all) Value(SR_ALL) | |
1259 | ||
1260 | EnumValue | |
1261 | Enum(stack_reuse_level) String(named_vars) Value(SR_NAMED_VARS) | |
1262 | ||
1263 | EnumValue | |
1264 | Enum(stack_reuse_level) String(none) Value(SR_NONE) | |
1265 | ||
384a5197 SP |
1266 | ftree-loop-if-convert |
1267 | Common Report Var(flag_tree_loop_if_convert) Init(-1) Optimization | |
1268 | Convert conditional jumps in innermost loops to branchless equivalents | |
1269 | ||
bd544141 SP |
1270 | ftree-loop-if-convert-stores |
1271 | Common Report Var(flag_tree_loop_if_convert_stores) Optimization | |
1272 | Also if-convert conditional jumps containing memory writes | |
1273 | ||
31b66477 KC |
1274 | ; -finhibit-size-directive inhibits output of .size for ELF. |
1275 | ; This is used only for compiling crtstuff.c, | |
1276 | ; and it may be extended to other effects | |
1277 | ; needed for crtstuff.c on other systems. | |
6ff3a151 | 1278 | finhibit-size-directive |
50431bc4 | 1279 | Common Report Var(flag_inhibit_size_directive) |
f3fdaec4 | 1280 | Do not generate .size directives |
6ff3a151 | 1281 | |
3e293154 MJ |
1282 | findirect-inlining |
1283 | Common Report Var(flag_indirect_inlining) | |
1284 | Perform indirect inlining | |
1285 | ||
99ea07f8 RG |
1286 | ; General flag to enable inlining. Specifying -fno-inline will disable |
1287 | ; all inlining apart from always-inline functions. | |
de32c0cb | 1288 | finline |
e90acd93 | 1289 | Common Report Var(flag_no_inline,0) Init(0) |
99ea07f8 | 1290 | Enable inlining of function declared \"inline\", disabling disables all inlining |
de32c0cb | 1291 | |
4d4b8cb9 JH |
1292 | finline-small-functions |
1293 | Common Report Var(flag_inline_small_functions) Optimization | |
99ea07f8 | 1294 | Integrate functions into their callers when code size is known not to grow |
4d4b8cb9 | 1295 | |
de32c0cb | 1296 | finline-functions |
c662432e | 1297 | Common Report Var(flag_inline_functions) Optimization |
99ea07f8 | 1298 | Integrate functions not declared \"inline\" into their callers when profitable |
de32c0cb | 1299 | |
355866de | 1300 | finline-functions-called-once |
fb37c1de | 1301 | Common Report Var(flag_inline_functions_called_once) Optimization |
99ea07f8 | 1302 | Integrate functions only required by their single caller |
d63db217 | 1303 | |
d302c9d6 | 1304 | finline-limit- |
5de8299c | 1305 | Common RejectNegative Joined Alias(finline-limit=) |
d302c9d6 NB |
1306 | |
1307 | finline-limit= | |
1308 | Common RejectNegative Joined UInteger | |
cf03fd63 | 1309 | -finline-limit=<number> Limit the size of inlined functions to <number> |
d302c9d6 | 1310 | |
86951993 AM |
1311 | finline-atomics |
1312 | Common Report Var(flag_inline_atomics) Init(1) Optimization | |
1313 | Inline __atomic operations when a lock free instruction sequence is available. | |
1314 | ||
6ff3a151 | 1315 | finstrument-functions |
50431bc4 | 1316 | Common Report Var(flag_instrument_function_entry_exit) |
f3fdaec4 | 1317 | Instrument function entry and exit with profiling calls |
6ff3a151 | 1318 | |
8d5a7d1f ILT |
1319 | finstrument-functions-exclude-function-list= |
1320 | Common RejectNegative Joined | |
1321 | -finstrument-functions-exclude-function-list=name,... Do not instrument listed functions | |
1322 | ||
1323 | finstrument-functions-exclude-file-list= | |
1324 | Common RejectNegative Joined | |
1325 | -finstrument-functions-exclude-file-list=filename,... Do not instrument functions listed in files | |
1326 | ||
d6e14e8f | 1327 | fipa-cp |
c662432e | 1328 | Common Report Var(flag_ipa_cp) Optimization |
d6e14e8f SB |
1329 | Perform Interprocedural constant propagation |
1330 | ||
5e45130d JH |
1331 | fipa-cp-clone |
1332 | Common Report Var(flag_ipa_cp_clone) Optimization | |
1333 | Perform cloning to make Interprocedural constant propagation stronger | |
1334 | ||
e65bb9be JH |
1335 | fipa-profile |
1336 | Common Report Var(flag_ipa_profile) Init(0) Optimization | |
1337 | Perform interprocedural profile propagation | |
ea900239 | 1338 | |
4cf4d6a3 | 1339 | fipa-pta |
c662432e | 1340 | Common Report Var(flag_ipa_pta) Init(0) Optimization |
4cf4d6a3 DB |
1341 | Perform interprocedural points-to analysis |
1342 | ||
e65bb9be JH |
1343 | fipa-pure-const |
1344 | Common Report Var(flag_ipa_pure_const) Init(0) Optimization | |
1345 | Discover pure and const functions | |
1346 | ||
ea900239 | 1347 | fipa-reference |
c662432e | 1348 | Common Report Var(flag_ipa_reference) Init(0) Optimization |
ea900239 DB |
1349 | Discover readonly and non addressable static variables |
1350 | ||
43d861a5 | 1351 | fipa-matrix-reorg |
6ae4be32 | 1352 | Common Report Var(flag_ipa_matrix_reorg) Optimization |
43d861a5 RL |
1353 | Perform matrix layout flattening and transposing based |
1354 | on profiling information. | |
1355 | ||
e1dc98b2 | 1356 | fipa-struct-reorg |
b8beb4d1 RG |
1357 | Common Ignore |
1358 | Does nothing. Preserved for backward compatibility. | |
e1dc98b2 | 1359 | |
058e97ec | 1360 | fira-algorithm= |
e6d4b984 | 1361 | Common Joined RejectNegative Enum(ira_algorithm) Var(flag_ira_algorithm) Init(IRA_ALGORITHM_CB) |
7db7ed3c VM |
1362 | -fira-algorithm=[CB|priority] Set the used IRA algorithm |
1363 | ||
e6d4b984 JM |
1364 | Enum |
1365 | Name(ira_algorithm) Type(enum ira_algorithm) UnknownError(unknown IRA algorithm %qs) | |
1366 | ||
1367 | EnumValue | |
1368 | Enum(ira_algorithm) String(CB) Value(IRA_ALGORITHM_CB) | |
1369 | ||
1370 | EnumValue | |
1371 | Enum(ira_algorithm) String(priority) Value(IRA_ALGORITHM_PRIORITY) | |
1372 | ||
7db7ed3c | 1373 | fira-region= |
ffe8727f | 1374 | Common Joined RejectNegative Enum(ira_region) Var(flag_ira_region) Init(IRA_REGION_AUTODETECT) |
7db7ed3c | 1375 | -fira-region=[one|all|mixed] Set regions for IRA |
058e97ec | 1376 | |
e6d4b984 JM |
1377 | Enum |
1378 | Name(ira_region) Type(enum ira_region) UnknownError(unknown IRA region %qs) | |
1379 | ||
1380 | EnumValue | |
1381 | Enum(ira_region) String(one) Value(IRA_REGION_ONE) | |
1382 | ||
1383 | EnumValue | |
1384 | Enum(ira_region) String(all) Value(IRA_REGION_ALL) | |
1385 | ||
1386 | EnumValue | |
1387 | Enum(ira_region) String(mixed) Value(IRA_REGION_MIXED) | |
1388 | ||
1833192f VM |
1389 | fira-loop-pressure |
1390 | Common Report Var(flag_ira_loop_pressure) | |
1391 | Use IRA based register pressure calculation | |
1392 | in RTL loop optimizations. | |
1393 | ||
058e97ec VM |
1394 | fira-share-save-slots |
1395 | Common Report Var(flag_ira_share_save_slots) Init(1) | |
1396 | Share slots for saving different hard registers. | |
1397 | ||
1398 | fira-share-spill-slots | |
1399 | Common Report Var(flag_ira_share_spill_slots) Init(1) | |
1400 | Share stack slots for spilled pseudo-registers. | |
1401 | ||
1402 | fira-verbose= | |
5498f011 | 1403 | Common RejectNegative Joined UInteger Var(flag_ira_verbose) Init(5) |
f94e1d66 | 1404 | -fira-verbose=<number> Control IRA's level of diagnostic messages. |
058e97ec | 1405 | |
8b11a64c | 1406 | fivopts |
c662432e | 1407 | Common Report Var(flag_ivopts) Init(1) Optimization |
8b11a64c ZD |
1408 | Optimize induction variables on trees |
1409 | ||
82c0180d | 1410 | fjump-tables |
c662432e | 1411 | Common Var(flag_jump_tables) Init(1) Optimization |
82c0180d JM |
1412 | Use jump tables for sufficiently large switch statements |
1413 | ||
de32c0cb | 1414 | fkeep-inline-functions |
50431bc4 | 1415 | Common Report Var(flag_keep_inline_functions) |
f3fdaec4 | 1416 | Generate code for functions even if they are fully inlined |
de32c0cb NB |
1417 | |
1418 | fkeep-static-consts | |
50431bc4 | 1419 | Common Report Var(flag_keep_static_consts) Init(1) |
f3fdaec4 | 1420 | Emit static const variables even if they are not used |
de32c0cb | 1421 | |
6ff3a151 | 1422 | fleading-underscore |
50431bc4 | 1423 | Common Report Var(flag_leading_underscore) Init(-1) |
f3fdaec4 | 1424 | Give external symbols a leading underscore |
6ff3a151 | 1425 | |
efa1cdf0 | 1426 | floop-optimize |
2d2bd949 | 1427 | Common Ignore |
c0220ea4 | 1428 | Does nothing. Preserved for backward compatibility. |
efa1cdf0 | 1429 | |
d7f09764 | 1430 | flto |
014d92e1 | 1431 | Common |
d7f09764 DN |
1432 | Enable link-time optimization. |
1433 | ||
014d92e1 JH |
1434 | flto= |
1435 | Common RejectNegative Joined Var(flag_lto) | |
1436 | Link-time optimization with number of parallel jobs or jobserver. | |
1437 | ||
852e4bd2 JH |
1438 | flto-partition=1to1 |
1439 | Common Var(flag_lto_partition_1to1) | |
1440 | Partition functions and vars at linktime based on object files they originate from | |
1441 | ||
1442 | flto-partition=balanced | |
1443 | Common Var(flag_lto_partition_balanced) | |
1444 | Partition functions and vars at linktime into approximately same sized buckets | |
1445 | ||
014d92e1 JH |
1446 | flto-partition=none |
1447 | Common Var(flag_lto_partition_none) | |
1448 | Disable partioning and streaming | |
1449 | ||
d7f09764 DN |
1450 | ; The initial value of -1 comes from Z_DEFAULT_COMPRESSION in zlib.h. |
1451 | flto-compression-level= | |
fcfbd84e | 1452 | Common Joined RejectNegative UInteger Var(flag_lto_compression_level) Init(-1) |
f94e1d66 | 1453 | -flto-compression-level=<number> Use zlib compression level <number> for IL |
d7f09764 DN |
1454 | |
1455 | flto-report | |
1d67dde8 | 1456 | Common Report Var(flag_lto_report) Init(0) |
d7f09764 DN |
1457 | Report various link-time optimization statistics |
1458 | ||
6ff3a151 | 1459 | fmath-errno |
5e46b0c6 | 1460 | Common Report Var(flag_errno_math) Init(1) Optimization SetByCombined |
f3fdaec4 | 1461 | Set errno after built-in math functions |
6ff3a151 | 1462 | |
3a789837 NF |
1463 | fmax-errors= |
1464 | Common Joined RejectNegative UInteger Var(flag_max_errors) | |
1465 | -fmax-errors=<number> Maximum number of errors to report | |
1466 | ||
6ff3a151 | 1467 | fmem-report |
50431bc4 | 1468 | Common Report Var(mem_report) |
f3fdaec4 | 1469 | Report on permanent memory allocation |
6ff3a151 | 1470 | |
31b66477 KC |
1471 | ; This will attempt to merge constant section constants, if 1 only |
1472 | ; string constants and constants from constant pool, if 2 also constant | |
1473 | ; variables. | |
6ff3a151 | 1474 | fmerge-all-constants |
c662432e | 1475 | Common Report Var(flag_merge_constants,2) Init(1) Optimization |
f3fdaec4 | 1476 | Attempt to merge identical constants and constant variables |
6ff3a151 NB |
1477 | |
1478 | fmerge-constants | |
f0036cca | 1479 | Common Report Var(flag_merge_constants,1) Optimization |
f3fdaec4 | 1480 | Attempt to merge identical constants across compilation units |
6ff3a151 | 1481 | |
28a08168 ILT |
1482 | fmerge-debug-strings |
1483 | Common Report Var(flag_merge_debug_strings) Init(1) | |
1484 | Attempt to merge identical debug strings across compilation units | |
1485 | ||
de32c0cb NB |
1486 | fmessage-length= |
1487 | Common RejectNegative Joined UInteger | |
cf03fd63 | 1488 | -fmessage-length=<number> Limit diagnostics to <number> characters per line. 0 suppresses line-wrapping |
de32c0cb | 1489 | |
e5626198 | 1490 | fmodulo-sched |
c662432e | 1491 | Common Report Var(flag_modulo_sched) Optimization |
e5626198 AZ |
1492 | Perform SMS based modulo scheduling before the first scheduling pass |
1493 | ||
517d76fa VY |
1494 | fmodulo-sched-allow-regmoves |
1495 | Common Report Var(flag_modulo_sched_allow_regmoves) | |
1496 | Perform SMS based modulo scheduling with register moves allowed | |
1497 | ||
5e962776 | 1498 | fmove-loop-invariants |
c662432e | 1499 | Common Report Var(flag_move_loop_invariants) Init(1) Optimization |
5e962776 ZD |
1500 | Move loop invariant computations out of loops |
1501 | ||
6fb5fa3c | 1502 | fdce |
6ae4be32 | 1503 | Common Var(flag_dce) Init(1) Optimization |
6fb5fa3c DB |
1504 | Use the RTL dead code elimination pass |
1505 | ||
1506 | fdse | |
6ae4be32 | 1507 | Common Var(flag_dse) Init(1) Optimization |
6fb5fa3c DB |
1508 | Use the RTL dead store elimination pass |
1509 | ||
d72372e4 | 1510 | freschedule-modulo-scheduled-loops |
c662432e | 1511 | Common Report Var(flag_resched_modulo_sched) Optimization |
d72372e4 MH |
1512 | Enable/Disable the traditional scheduling in loops that already passed modulo scheduling |
1513 | ||
6ff3a151 | 1514 | fnon-call-exceptions |
c662432e | 1515 | Common Report Var(flag_non_call_exceptions) Optimization |
f3fdaec4 | 1516 | Support synchronous non-call exceptions |
6ff3a151 | 1517 | |
de32c0cb | 1518 | fomit-frame-pointer |
c662432e | 1519 | Common Report Var(flag_omit_frame_pointer) Optimization |
f3fdaec4 | 1520 | When possible do not generate stack frames |
de32c0cb | 1521 | |
6ff3a151 | 1522 | foptimize-register-move |
c662432e | 1523 | Common Report Var(flag_regmove) Optimization |
f3fdaec4 | 1524 | Do the full register move optimization pass |
6ff3a151 | 1525 | |
de32c0cb | 1526 | foptimize-sibling-calls |
c662432e | 1527 | Common Report Var(flag_optimize_sibling_calls) Optimization |
f3fdaec4 | 1528 | Optimize sibling and tail recursive calls |
de32c0cb | 1529 | |
3e485f62 JH |
1530 | fpartial-inlining |
1531 | Common Report Var(flag_partial_inlining) | |
1532 | Perform partial inlining | |
1533 | ||
a5573239 JH |
1534 | fpre-ipa-mem-report |
1535 | Common Report Var(pre_ipa_mem_report) | |
1536 | Report on memory allocation before interprocedural optimization | |
1537 | ||
1538 | fpost-ipa-mem-report | |
1539 | Common Report Var(post_ipa_mem_report) | |
1540 | Report on memory allocation before interprocedural optimization | |
1541 | ||
6ff3a151 | 1542 | fpack-struct |
c662432e | 1543 | Common Report Var(flag_pack_struct) Optimization |
f3fdaec4 | 1544 | Pack structure members together without holes |
6ff3a151 | 1545 | |
467cecf3 | 1546 | fpack-struct= |
c662432e | 1547 | Common RejectNegative Joined UInteger Optimization |
467cecf3 JB |
1548 | -fpack-struct=<number> Set initial maximum structure member alignment |
1549 | ||
de32c0cb | 1550 | fpcc-struct-return |
5498f011 | 1551 | Common Report Var(flag_pcc_struct_return,1) Init(DEFAULT_PCC_STRUCT_RETURN) |
f3fdaec4 | 1552 | Return small aggregates in memory, not registers |
de32c0cb NB |
1553 | |
1554 | fpeel-loops | |
c662432e | 1555 | Common Report Var(flag_peel_loops) Optimization |
f3fdaec4 | 1556 | Perform loop peeling |
de32c0cb NB |
1557 | |
1558 | fpeephole | |
c662432e | 1559 | Common Report Var(flag_no_peephole,0) Optimization |
f3fdaec4 | 1560 | Enable machine specific peephole optimizations |
de32c0cb | 1561 | |
6ff3a151 | 1562 | fpeephole2 |
c662432e | 1563 | Common Report Var(flag_peephole2) Optimization |
f3fdaec4 | 1564 | Enable an RTL peephole pass before sched2 |
6ff3a151 | 1565 | |
31b66477 KC |
1566 | fPIC |
1567 | Common Report Var(flag_pic,2) | |
1568 | Generate position-independent code if possible (large mode) | |
1569 | ||
1570 | fPIE | |
1571 | Common Report Var(flag_pie,2) | |
1572 | Generate position-independent code for executables if possible (large mode) | |
1573 | ||
6ff3a151 | 1574 | fpic |
f0036cca | 1575 | Common Report Var(flag_pic,1) |
31b66477 | 1576 | Generate position-independent code if possible (small mode) |
6ff3a151 NB |
1577 | |
1578 | fpie | |
f0036cca | 1579 | Common Report Var(flag_pie,1) |
31b66477 | 1580 | Generate position-independent code for executables if possible (small mode) |
6ff3a151 | 1581 | |
68a607d8 | 1582 | fplugin= |
21bf1558 | 1583 | Common Joined RejectNegative Var(common_deferred_options) Defer |
68a607d8 DN |
1584 | Specify a plugin to load |
1585 | ||
1586 | fplugin-arg- | |
21bf1558 | 1587 | Common Joined RejectNegative Var(common_deferred_options) Defer |
f94e1d66 | 1588 | -fplugin-arg-<name>-<key>[=<value>] Specify argument <key>=<value> for plugin <name> |
68a607d8 | 1589 | |
bbc8a8dc | 1590 | fpredictive-commoning |
6ae4be32 | 1591 | Common Report Var(flag_predictive_commoning) Optimization |
bbc8a8dc ZD |
1592 | Run predictive commoning optimization. |
1593 | ||
de32c0cb | 1594 | fprefetch-loop-arrays |
1fbb509a | 1595 | Common Report Var(flag_prefetch_loop_arrays) Init(-1) Optimization |
f3fdaec4 | 1596 | Generate prefetch instructions, if available, for arrays in loops |
de32c0cb | 1597 | |
6ff3a151 | 1598 | fprofile |
50431bc4 | 1599 | Common Report Var(profile_flag) |
f3fdaec4 | 1600 | Enable basic program profiling code |
6ff3a151 NB |
1601 | |
1602 | fprofile-arcs | |
50431bc4 | 1603 | Common Report Var(profile_arc_flag) |
f3fdaec4 | 1604 | Insert arc-based program profiling code |
6ff3a151 | 1605 | |
2f908293 | 1606 | fprofile-dir= |
0576d21f | 1607 | Common Joined RejectNegative Var(profile_data_prefix) |
2f908293 SP |
1608 | Set the top-level directory for storing the profile data. |
1609 | The default is 'pwd'. | |
1610 | ||
52c76998 PY |
1611 | fprofile-correction |
1612 | Common Report Var(flag_profile_correction) | |
1613 | Enable correction of flow inconsistent profile data input | |
1614 | ||
a8a5f53a JH |
1615 | fprofile-generate |
1616 | Common | |
1617 | Enable common options for generating profile info for profile feedback directed optimizations | |
1618 | ||
2f908293 SP |
1619 | fprofile-generate= |
1620 | Common Joined RejectNegative | |
1621 | Enable common options for generating profile info for profile feedback directed optimizations, and set -fprofile-dir= | |
1622 | ||
a8a5f53a | 1623 | fprofile-use |
2f908293 | 1624 | Common Var(flag_profile_use) |
a8a5f53a JH |
1625 | Enable common options for performing profile feedback directed optimizations |
1626 | ||
2f908293 SP |
1627 | fprofile-use= |
1628 | Common Joined RejectNegative | |
1629 | Enable common options for performing profile feedback directed optimizations, and set -fprofile-dir= | |
1630 | ||
fca9dc00 | 1631 | fprofile-values |
50431bc4 | 1632 | Common Report Var(flag_profile_values) |
fca9dc00 ZD |
1633 | Insert code to profile values of expressions |
1634 | ||
de32c0cb | 1635 | frandom-seed |
299404a1 | 1636 | Common Var(common_deferred_options) Defer |
de32c0cb NB |
1637 | |
1638 | frandom-seed= | |
299404a1 | 1639 | Common Joined RejectNegative Var(common_deferred_options) Defer |
cf03fd63 | 1640 | -frandom-seed=<string> Make compile reproducible using <string> |
de32c0cb | 1641 | |
e0d9d0dd NC |
1642 | ; This switch causes the command line that was used to create an |
1643 | ; object file to be recorded into the object file. The exact format | |
1644 | ; of this recording is target and binary file format dependent. | |
1645 | ; It is related to the -fverbose-asm switch, but that switch only | |
1646 | ; records information in the assembler output file as comments, so | |
1647 | ; they never reach the object file. | |
1648 | frecord-gcc-switches | |
1649 | Common Report Var(flag_record_gcc_switches) | |
1650 | Record gcc command line switches in the object file. | |
1651 | ||
de32c0cb | 1652 | freg-struct-return |
f0036cca | 1653 | Common Report Var(flag_pcc_struct_return,0) Optimization |
f3fdaec4 | 1654 | Return small aggregates in registers |
de32c0cb | 1655 | |
6ff3a151 | 1656 | fregmove |
c662432e | 1657 | Common Report Var(flag_regmove) Optimization |
f3fdaec4 | 1658 | Enables a register move optimization |
6ff3a151 NB |
1659 | |
1660 | frename-registers | |
c662432e | 1661 | Common Report Var(flag_rename_registers) Init(2) Optimization |
f3fdaec4 | 1662 | Perform a register renaming optimization pass |
6ff3a151 NB |
1663 | |
1664 | freorder-blocks | |
c662432e | 1665 | Common Report Var(flag_reorder_blocks) Optimization |
f3fdaec4 | 1666 | Reorder basic blocks to improve code placement |
6ff3a151 | 1667 | |
750054a2 | 1668 | freorder-blocks-and-partition |
c662432e | 1669 | Common Report Var(flag_reorder_blocks_and_partition) Optimization |
750054a2 CT |
1670 | Reorder basic blocks and partition into hot and cold sections |
1671 | ||
6ff3a151 | 1672 | freorder-functions |
c662432e | 1673 | Common Report Var(flag_reorder_functions) Optimization |
f3fdaec4 | 1674 | Reorder functions to improve code placement |
6ff3a151 | 1675 | |
de32c0cb | 1676 | frerun-cse-after-loop |
3020190e | 1677 | Common Report Var(flag_rerun_cse_after_loop) Optimization |
f3fdaec4 | 1678 | Add a common subexpression elimination pass after loop optimizations |
de32c0cb | 1679 | |
efa1cdf0 | 1680 | frerun-loop-opt |
2d2bd949 | 1681 | Common Ignore |
c0220ea4 | 1682 | Does nothing. Preserved for backward compatibility. |
efa1cdf0 | 1683 | |
039c3d42 | 1684 | frounding-math |
5e46b0c6 | 1685 | Common Report Var(flag_rounding_math) Optimization SetByCombined |
039c3d42 RS |
1686 | Disable optimizations that assume default FP rounding behavior |
1687 | ||
6ff3a151 | 1688 | fsched-interblock |
c662432e | 1689 | Common Report Var(flag_schedule_interblock) Init(1) Optimization |
f3fdaec4 | 1690 | Enable scheduling across basic blocks |
6ff3a151 | 1691 | |
ce18efcb VM |
1692 | fsched-pressure |
1693 | Common Report Var(flag_sched_pressure) Init(0) Optimization | |
1694 | Enable register pressure sensitive insn scheduling | |
1695 | ||
6ff3a151 | 1696 | fsched-spec |
c662432e | 1697 | Common Report Var(flag_schedule_speculative) Init(1) Optimization |
f3fdaec4 | 1698 | Allow speculative motion of non-loads |
6ff3a151 NB |
1699 | |
1700 | fsched-spec-load | |
c662432e | 1701 | Common Report Var(flag_schedule_speculative_load) Optimization |
f3fdaec4 | 1702 | Allow speculative motion of some loads |
6ff3a151 NB |
1703 | |
1704 | fsched-spec-load-dangerous | |
c662432e | 1705 | Common Report Var(flag_schedule_speculative_load_dangerous) Optimization |
f3fdaec4 | 1706 | Allow speculative motion of more loads |
6ff3a151 | 1707 | |
de32c0cb | 1708 | fsched-verbose= |
299404a1 | 1709 | Common RejectNegative Joined UInteger Var(sched_verbose_param) |
cf03fd63 | 1710 | -fsched-verbose=<number> Set the verbosity level of the scheduler |
de32c0cb | 1711 | |
6ff3a151 | 1712 | fsched2-use-superblocks |
c662432e | 1713 | Common Report Var(flag_sched2_use_superblocks) Optimization |
f3fdaec4 | 1714 | If scheduling post reload, do superblock scheduling |
6ff3a151 NB |
1715 | |
1716 | fsched2-use-traces | |
2d2bd949 | 1717 | Common Ignore |
57257f0d | 1718 | Does nothing. Preserved for backward compatibility. |
6ff3a151 | 1719 | |
de32c0cb | 1720 | fschedule-insns |
c662432e | 1721 | Common Report Var(flag_schedule_insns) Optimization |
f3fdaec4 | 1722 | Reschedule instructions before register allocation |
de32c0cb NB |
1723 | |
1724 | fschedule-insns2 | |
c662432e | 1725 | Common Report Var(flag_schedule_insns_after_reload) Optimization |
f3fdaec4 | 1726 | Reschedule instructions after register allocation |
de32c0cb | 1727 | |
e855c69d AB |
1728 | ; This flag should be on when a target implements non-trivial |
1729 | ; scheduling hooks, maybe saving some information for its own sake. | |
1730 | ; On IA64, for example, this is used for correct bundling. | |
1731 | fselective-scheduling | |
1732 | Common Report Var(flag_selective_scheduling) Optimization | |
1733 | Schedule instructions using selective scheduling algorithm | |
1734 | ||
1735 | fselective-scheduling2 | |
1736 | Common Report Var(flag_selective_scheduling2) Optimization | |
1737 | Run selective scheduling after reload | |
1738 | ||
1739 | fsel-sched-pipelining | |
1740 | Common Report Var(flag_sel_sched_pipelining) Init(0) Optimization | |
1741 | Perform software pipelining of inner loops during selective scheduling | |
1742 | ||
1743 | fsel-sched-pipelining-outer-loops | |
1744 | Common Report Var(flag_sel_sched_pipelining_outer_loops) Init(0) Optimization | |
1745 | Perform software pipelining of outer loops during selective scheduling | |
1746 | ||
1747 | fsel-sched-reschedule-pipelined | |
1748 | Common Report Var(flag_sel_sched_reschedule_pipelined) Init(0) Optimization | |
1749 | Reschedule pipelined regions without pipelining | |
1750 | ||
31b66477 KC |
1751 | ; sched_stalled_insns means that insns can be moved prematurely from the queue |
1752 | ; of stalled insns into the ready list. | |
569fa502 | 1753 | fsched-stalled-insns |
ab442df7 | 1754 | Common Report Var(flag_sched_stalled_insns) Optimization UInteger |
569fa502 DN |
1755 | Allow premature scheduling of queued insns |
1756 | ||
1757 | fsched-stalled-insns= | |
c22cacf3 | 1758 | Common RejectNegative Joined UInteger |
4e994432 | 1759 | -fsched-stalled-insns=<number> Set number of queued insns that can be prematurely scheduled |
569fa502 | 1760 | |
31b66477 KC |
1761 | ; sched_stalled_insns_dep controls how many recently scheduled cycles will |
1762 | ; be examined for a dependency on a stalled insn that is candidate for | |
1763 | ; premature removal from the queue of stalled insns into the ready list (has | |
1764 | ; an effect only if the flag 'sched_stalled_insns' is set). | |
569fa502 | 1765 | fsched-stalled-insns-dep |
ab442df7 | 1766 | Common Report Var(flag_sched_stalled_insns_dep,1) Init(1) Optimization UInteger |
569fa502 DN |
1767 | Set dependence distance checking in premature scheduling of queued insns |
1768 | ||
1769 | fsched-stalled-insns-dep= | |
1770 | Common RejectNegative Joined UInteger | |
4e994432 | 1771 | -fsched-stalled-insns-dep=<number> Set dependence distance checking in premature scheduling of queued insns |
569fa502 | 1772 | |
ee4764a8 GS |
1773 | fsched-group-heuristic |
1774 | Common Report Var(flag_sched_group_heuristic) Init(1) Optimization | |
1775 | Enable the group heuristic in the scheduler | |
1776 | ||
1777 | fsched-critical-path-heuristic | |
1778 | Common Report Var(flag_sched_critical_path_heuristic) Init(1) Optimization | |
1779 | Enable the critical path heuristic in the scheduler | |
1780 | ||
1781 | fsched-spec-insn-heuristic | |
1782 | Common Report Var(flag_sched_spec_insn_heuristic) Init(1) Optimization | |
1783 | Enable the speculative instruction heuristic in the scheduler | |
1784 | ||
ee4764a8 GS |
1785 | fsched-rank-heuristic |
1786 | Common Report Var(flag_sched_rank_heuristic) Init(1) Optimization | |
1787 | Enable the rank heuristic in the scheduler | |
1788 | ||
1789 | fsched-last-insn-heuristic | |
1790 | Common Report Var(flag_sched_last_insn_heuristic) Init(1) Optimization | |
1791 | Enable the last instruction heuristic in the scheduler | |
1792 | ||
1793 | fsched-dep-count-heuristic | |
1794 | Common Report Var(flag_sched_dep_count_heuristic) Init(1) Optimization | |
1795 | Enable the dependent count heuristic in the scheduler | |
1796 | ||
aacd3885 | 1797 | fsection-anchors |
c662432e | 1798 | Common Report Var(flag_section_anchors) Optimization |
aacd3885 RS |
1799 | Access data in the same section from shared anchor points |
1800 | ||
8cd37d0b | 1801 | fsee |
2d2bd949 | 1802 | Common Ignore |
8393a9c8 | 1803 | Does nothing. Preserved for backward compatibility. |
8cd37d0b | 1804 | |
87a0ebfd | 1805 | fzee |
26cd9add EI |
1806 | Common Ignore |
1807 | Does nothing. Preserved for backward compatibility. | |
1808 | ||
1809 | free | |
1810 | Common Report Var(flag_ree) Init(0) | |
1811 | Turn on Redundant Extensions Elimination pass. | |
87a0ebfd | 1812 | |
8abb6b22 | 1813 | fshow-column |
1cb42611 | 1814 | Common Report Var(flag_show_column) Init(1) |
e74fe492 | 1815 | Show column numbers in diagnostics, when available. Default on |
8abb6b22 | 1816 | |
484db665 BS |
1817 | fshrink-wrap |
1818 | Common Report Var(flag_shrink_wrap) Optimization | |
1819 | Emit function prologues only before parts of the function that need it, | |
1820 | rather than at the top of the function. | |
1821 | ||
6ff3a151 | 1822 | fsignaling-nans |
5e46b0c6 | 1823 | Common Report Var(flag_signaling_nans) Optimization SetByCombined |
f3fdaec4 | 1824 | Disable optimizations observable by IEEE signaling NaNs |
6ff3a151 | 1825 | |
db02da79 | 1826 | fsigned-zeros |
5e46b0c6 | 1827 | Common Report Var(flag_signed_zeros) Init(1) Optimization SetByCombined |
db02da79 RS |
1828 | Disable floating point optimizations that ignore the IEEE signedness of zero |
1829 | ||
6ff3a151 | 1830 | fsingle-precision-constant |
c662432e | 1831 | Common Report Var(flag_single_precision_constant) Optimization |
f3fdaec4 | 1832 | Convert floating point constants to single precision constants |
6ff3a151 | 1833 | |
113d659a | 1834 | fsplit-ivs-in-unroller |
c662432e | 1835 | Common Report Var(flag_split_ivs_in_unroller) Init(1) Optimization |
c85ce869 | 1836 | Split lifetimes of induction variables when loops are unrolled |
113d659a | 1837 | |
7458026b ILT |
1838 | fsplit-stack |
1839 | Common Report Var(flag_split_stack) Init(-1) | |
1840 | Generate discontiguous stack frames | |
1841 | ||
e53a16e7 | 1842 | fsplit-wide-types |
21af5cdf | 1843 | Common Report Var(flag_split_wide_types) Optimization |
e53a16e7 ILT |
1844 | Split wide types into independent registers |
1845 | ||
f37a4f14 | 1846 | fvariable-expansion-in-unroller |
c662432e | 1847 | Common Report Var(flag_variable_expansion_in_unroller) Optimization |
c85ce869 | 1848 | Apply variable expansion when loops are unrolled |
f37a4f14 | 1849 | |
b38f3813 EB |
1850 | fstack-check= |
1851 | Common Report RejectNegative Joined | |
1852 | -fstack-check=[no|generic|specific] Insert stack checking code into the program | |
1853 | ||
6ff3a151 | 1854 | fstack-check |
5de8299c | 1855 | Common Alias(fstack-check=, specific, no) |
b38f3813 | 1856 | Insert stack checking code into the program. Same as -fstack-check=specific |
6ff3a151 | 1857 | |
de32c0cb | 1858 | fstack-limit |
21bf1558 | 1859 | Common Var(common_deferred_options) Defer |
de32c0cb | 1860 | |
058de654 | 1861 | fstack-limit-register= |
21bf1558 | 1862 | Common RejectNegative Joined Var(common_deferred_options) Defer |
cf03fd63 | 1863 | -fstack-limit-register=<register> Trap if the stack goes past <register> |
058de654 NB |
1864 | |
1865 | fstack-limit-symbol= | |
21bf1558 | 1866 | Common RejectNegative Joined Var(common_deferred_options) Defer |
cf03fd63 | 1867 | -fstack-limit-symbol=<name> Trap if the stack goes past symbol <name> |
058de654 | 1868 | |
7d69de61 RH |
1869 | fstack-protector |
1870 | Common Report Var(flag_stack_protect, 1) | |
1871 | Use propolice as a stack protection method | |
1872 | ||
1873 | fstack-protector-all | |
f0036cca | 1874 | Common Report RejectNegative Var(flag_stack_protect, 2) |
7d69de61 RH |
1875 | Use a stack protection method for every function |
1876 | ||
d3c12306 EB |
1877 | fstack-usage |
1878 | Common RejectNegative Var(flag_stack_usage) | |
1879 | Output stack usage information on a per-function basis | |
1880 | ||
de32c0cb | 1881 | fstrength-reduce |
2d2bd949 | 1882 | Common Ignore |
c0220ea4 | 1883 | Does nothing. Preserved for backward compatibility. |
de32c0cb | 1884 | |
31b66477 KC |
1885 | ; Nonzero if we should do (language-dependent) alias analysis. |
1886 | ; Typically, this analysis will assume that expressions of certain | |
1887 | ; types do not alias expressions of certain other types. Only used | |
1888 | ; if alias analysis (in general) is enabled. | |
6ff3a151 | 1889 | fstrict-aliasing |
c662432e | 1890 | Common Report Var(flag_strict_aliasing) Optimization |
f3fdaec4 | 1891 | Assume strict aliasing rules apply |
6ff3a151 | 1892 | |
eeef0e45 ILT |
1893 | fstrict-overflow |
1894 | Common Report Var(flag_strict_overflow) | |
1895 | Treat signed overflow as undefined | |
1896 | ||
e8053cf5 RH |
1897 | fsync-libcalls |
1898 | Common Report Var(flag_sync_libcalls) Init(1) | |
1899 | Implement __atomic operations via libcalls to legacy __sync functions | |
1900 | ||
de32c0cb | 1901 | fsyntax-only |
50431bc4 | 1902 | Common Report Var(flag_syntax_only) |
f3fdaec4 | 1903 | Check for syntax errors, then stop |
de32c0cb | 1904 | |
6ff3a151 | 1905 | ftest-coverage |
50431bc4 | 1906 | Common Report Var(flag_test_coverage) |
f3fdaec4 | 1907 | Create data files needed by \"gcov\" |
6ff3a151 | 1908 | |
de32c0cb | 1909 | fthread-jumps |
c662432e | 1910 | Common Report Var(flag_thread_jumps) Optimization |
f3fdaec4 | 1911 | Perform jump threading optimizations |
de32c0cb | 1912 | |
6ff3a151 | 1913 | ftime-report |
50431bc4 | 1914 | Common Report Var(time_report) |
f3fdaec4 | 1915 | Report the time taken by each compiler pass |
6ff3a151 | 1916 | |
058de654 | 1917 | ftls-model= |
e6d4b984 | 1918 | Common Joined RejectNegative Enum(tls_model) Var(flag_tls_default) Init(TLS_MODEL_GLOBAL_DYNAMIC) |
cf03fd63 | 1919 | -ftls-model=[global-dynamic|local-dynamic|initial-exec|local-exec] Set the default thread-local storage code generation model |
058de654 | 1920 | |
e6d4b984 JM |
1921 | Enum |
1922 | Name(tls_model) Type(enum tls_model) UnknownError(unknown TLS model %qs) | |
1923 | ||
1924 | EnumValue | |
1925 | Enum(tls_model) String(global-dynamic) Value(TLS_MODEL_GLOBAL_DYNAMIC) | |
1926 | ||
1927 | EnumValue | |
1928 | Enum(tls_model) String(local-dynamic) Value(TLS_MODEL_LOCAL_DYNAMIC) | |
1929 | ||
1930 | EnumValue | |
1931 | Enum(tls_model) String(initial-exec) Value(TLS_MODEL_INITIAL_EXEC) | |
1932 | ||
1933 | EnumValue | |
1934 | Enum(tls_model) String(local-exec) Value(TLS_MODEL_LOCAL_EXEC) | |
1935 | ||
474eccc6 | 1936 | ftoplevel-reorder |
d6cc6ec9 | 1937 | Common Report Var(flag_toplevel_reorder) Init(2) Optimization |
474eccc6 ILT |
1938 | Reorder top level functions, variables, and asms |
1939 | ||
de32c0cb | 1940 | ftracer |
50431bc4 | 1941 | Common Report Var(flag_tracer) |
f3fdaec4 | 1942 | Perform superblock formation via tail duplication |
de32c0cb | 1943 | |
31b66477 KC |
1944 | ; Zero means that floating-point math operations cannot generate a |
1945 | ; (user-visible) trap. This is the case, for example, in nonstop | |
1946 | ; IEEE 754 arithmetic. | |
6ff3a151 | 1947 | ftrapping-math |
5e46b0c6 | 1948 | Common Report Var(flag_trapping_math) Init(1) Optimization SetByCombined |
f3fdaec4 | 1949 | Assume floating-point operations can trap |
6ff3a151 NB |
1950 | |
1951 | ftrapv | |
c662432e | 1952 | Common Report Var(flag_trapv) Optimization |
f3fdaec4 | 1953 | Trap for signed overflow in addition, subtraction and multiplication |
6ff3a151 | 1954 | |
6de9cd9a | 1955 | ftree-ccp |
c662432e | 1956 | Common Report Var(flag_tree_ccp) Optimization |
6de9cd9a DN |
1957 | Enable SSA-CCP optimization on trees |
1958 | ||
0b4b14ac RG |
1959 | ftree-bit-ccp |
1960 | Common Report Var(flag_tree_bit_ccp) Optimization | |
1961 | Enable SSA-BIT-CCP optimization on trees | |
1962 | ||
0bca51f0 | 1963 | ftree-store-ccp |
2d2bd949 | 1964 | Common Ignore |
dce2b2f6 | 1965 | Does nothing. Preserved for backward compatibility. |
0bca51f0 | 1966 | |
6de9cd9a | 1967 | ftree-ch |
c662432e | 1968 | Common Report Var(flag_tree_ch) Optimization |
6de9cd9a DN |
1969 | Enable loop header copying on trees |
1970 | ||
21d01365 AO |
1971 | ftree-coalesce-inlined-vars |
1972 | Common Report Var(flag_ssa_coalesce_vars,1) Init(2) RejectNegative Optimization | |
1973 | Enable coalescing of copy-related user variables that are inlined | |
1974 | ||
1975 | ftree-coalesce-vars | |
1976 | Common Report Var(flag_ssa_coalesce_vars,2) Optimization | |
1977 | Enable coalescing of all copy-related user variables | |
1978 | ||
6de9cd9a | 1979 | ftree-copyrename |
c662432e | 1980 | Common Report Var(flag_tree_copyrename) Optimization |
c85ce869 | 1981 | Replace SSA temporaries with better names in copies |
6de9cd9a | 1982 | |
0bca51f0 | 1983 | ftree-copy-prop |
c662432e | 1984 | Common Report Var(flag_tree_copy_prop) Optimization |
0bca51f0 DN |
1985 | Enable copy propagation on trees |
1986 | ||
1987 | ftree-store-copy-prop | |
2d2bd949 | 1988 | Common Ignore |
e9033855 | 1989 | Does nothing. Preserved for backward compatibility. |
0bca51f0 | 1990 | |
a5828d1e MM |
1991 | ftree-cselim |
1992 | Common Report Var(flag_tree_cselim) Init(2) Optimization | |
1993 | Transform condition stores into unconditional ones | |
1994 | ||
b6e99746 MJ |
1995 | ftree-switch-conversion |
1996 | Common Report Var(flag_tree_switch_conversion) Optimization | |
1997 | Perform conversions of switch initializations. | |
1998 | ||
6de9cd9a | 1999 | ftree-dce |
c662432e | 2000 | Common Report Var(flag_tree_dce) Optimization |
6de9cd9a DN |
2001 | Enable SSA dead code elimination optimization on trees |
2002 | ||
2003 | ftree-dominator-opts | |
c662432e | 2004 | Common Report Var(flag_tree_dom) Optimization |
6de9cd9a DN |
2005 | Enable dominator optimizations |
2006 | ||
c9e93168 TV |
2007 | ftree-tail-merge |
2008 | Common Report Var(flag_tree_tail_merge) Optimization | |
2009 | Enable tail merging on trees | |
2010 | ||
6de9cd9a | 2011 | ftree-dse |
c662432e | 2012 | Common Report Var(flag_tree_dse) Optimization |
6de9cd9a DN |
2013 | Enable dead store elimination |
2014 | ||
248fc9f3 RG |
2015 | ftree-forwprop |
2016 | Common Report Var(flag_tree_forwprop) Init(1) Optimization | |
2017 | Enable forward propagation on trees | |
2018 | ||
ff2ad0f7 | 2019 | ftree-fre |
c662432e | 2020 | Common Report Var(flag_tree_fre) Optimization |
ff2ad0f7 DN |
2021 | Enable Full Redundancy Elimination (FRE) on trees |
2022 | ||
8b57bfeb JJ |
2023 | foptimize-strlen |
2024 | Common Report Var(flag_optimize_strlen) Optimization | |
2025 | Enable string length optimizations on trees | |
2026 | ||
dea61d92 | 2027 | ftree-loop-distribution |
53ed2f0e | 2028 | Common Report Var(flag_tree_loop_distribution) Optimization |
dea61d92 SP |
2029 | Enable loop distribution on trees |
2030 | ||
20769d5e SP |
2031 | ftree-loop-distribute-patterns |
2032 | Common Report Var(flag_tree_loop_distribute_patterns) Optimization | |
2033 | Enable loop distribution for patterns transformed into a library call | |
2034 | ||
1b08d87d | 2035 | ftree-loop-im |
c662432e | 2036 | Common Report Var(flag_tree_loop_im) Init(1) Optimization |
a7e5372d ZD |
2037 | Enable loop invariant motion on trees |
2038 | ||
599eabdb | 2039 | ftree-loop-linear |
7633415c SP |
2040 | Common Alias(floop-interchange) |
2041 | Enable loop interchange transforms. Same as -floop-interchange | |
599eabdb | 2042 | |
1b08d87d | 2043 | ftree-loop-ivcanon |
c662432e | 2044 | Common Report Var(flag_tree_loop_ivcanon) Init(1) Optimization |
1b08d87d DB |
2045 | Create canonical induction variables in loops |
2046 | ||
c66b6c66 | 2047 | ftree-loop-optimize |
c662432e | 2048 | Common Report Var(flag_tree_loop_optimize) Init(1) Optimization |
c66b6c66 ZD |
2049 | Enable loop optimizations on tree level |
2050 | ||
5f40b3cb | 2051 | ftree-parallelize-loops= |
fcfbd84e | 2052 | Common Report Joined RejectNegative UInteger Var(flag_tree_parallelize_loops) Init(1) |
5f40b3cb ZD |
2053 | Enable automatic parallelization of loops |
2054 | ||
248fc9f3 RG |
2055 | ftree-phiprop |
2056 | Common Report Var(flag_tree_phiprop) Init(1) Optimization | |
2057 | Enable hoisting loads from conditional pointers. | |
2058 | ||
6de9cd9a | 2059 | ftree-pre |
c662432e | 2060 | Common Report Var(flag_tree_pre) Optimization |
6de9cd9a DN |
2061 | Enable SSA-PRE optimization on trees |
2062 | ||
fa06ad0d JR |
2063 | ftree-partial-pre |
2064 | Common Report Var(flag_tree_partial_pre) Optimization | |
2065 | In SSA-PRE optimization on trees, enable partial-partial redundancy elimination | |
2066 | ||
248fc9f3 RG |
2067 | ftree-pta |
2068 | Common Report Var(flag_tree_pta) Init(1) Optimization | |
2069 | Perform function-local points-to analysis on trees. | |
2070 | ||
13c59415 UB |
2071 | ftree-reassoc |
2072 | Common Report Var(flag_tree_reassoc) Init(1) Optimization | |
2073 | Enable reassociation on tree level | |
2074 | ||
c75ab022 | 2075 | ftree-salias |
2d2bd949 | 2076 | Common Ignore |
1353232d | 2077 | Does nothing. Preserved for backward compatibility. |
c75ab022 | 2078 | |
fa555252 | 2079 | ftree-sink |
c662432e | 2080 | Common Report Var(flag_tree_sink) Optimization |
fa555252 DB |
2081 | Enable SSA code sinking on trees |
2082 | ||
6de9cd9a | 2083 | ftree-sra |
c662432e | 2084 | Common Report Var(flag_tree_sra) Optimization |
6de9cd9a DN |
2085 | Perform scalar replacement of aggregates |
2086 | ||
2087 | ftree-ter | |
3020190e | 2088 | Common Report Var(flag_tree_ter) Optimization |
6de9cd9a DN |
2089 | Replace temporary expressions in the SSA->normal pass |
2090 | ||
c662432e NC |
2091 | ftree-lrs |
2092 | Common Report Var(flag_tree_live_range_split) Optimization | |
2093 | Perform live range splitting during the SSA->normal pass | |
2094 | ||
0bca51f0 | 2095 | ftree-vrp |
c662432e | 2096 | Common Report Var(flag_tree_vrp) Init(0) Optimization |
0bca51f0 DN |
2097 | Perform Value Range Propagation on trees |
2098 | ||
de32c0cb | 2099 | funit-at-a-time |
d6cc6ec9 | 2100 | Common Report Var(flag_unit_at_a_time) Init(1) Optimization |
f3fdaec4 | 2101 | Compile whole compilation unit at a time |
de32c0cb NB |
2102 | |
2103 | funroll-loops | |
c662432e | 2104 | Common Report Var(flag_unroll_loops) Optimization |
f3fdaec4 | 2105 | Perform loop unrolling when iteration count is known |
de32c0cb NB |
2106 | |
2107 | funroll-all-loops | |
c662432e | 2108 | Common Report Var(flag_unroll_all_loops) Optimization |
f3fdaec4 | 2109 | Perform loop unrolling for all loops |
de32c0cb | 2110 | |
f9cc1a70 PB |
2111 | ; Nonzero means that loop optimizer may assume that the induction variables |
2112 | ; that control loops do not overflow and that the loops with nontrivial | |
2113 | ; exit condition are not infinite | |
2114 | funsafe-loop-optimizations | |
c662432e | 2115 | Common Report Var(flag_unsafe_loop_optimizations) Optimization |
f9cc1a70 PB |
2116 | Allow loop optimizations to assume that the loops behave in normal way |
2117 | ||
a1a82611 | 2118 | fassociative-math |
5e46b0c6 | 2119 | Common Report Var(flag_associative_math) SetByCombined |
a1a82611 RE |
2120 | Allow optimization for floating-point arithmetic which may change the |
2121 | result of the operation due to rounding. | |
2122 | ||
2123 | freciprocal-math | |
5e46b0c6 | 2124 | Common Report Var(flag_reciprocal_math) SetByCombined |
a1a82611 RE |
2125 | Same as -fassociative-math for expressions which include division. |
2126 | ||
31b66477 KC |
2127 | ; Nonzero means that unsafe floating-point math optimizations are allowed |
2128 | ; for the sake of speed. IEEE compliance is not guaranteed, and operations | |
2129 | ; are allowed to assume that their arguments and results are "normal" | |
2130 | ; (e.g., nonnegative for SQRT). | |
6ff3a151 | 2131 | funsafe-math-optimizations |
5e46b0c6 | 2132 | Common Report Var(flag_unsafe_math_optimizations) Optimization SetByCombined |
f3fdaec4 | 2133 | Allow math optimizations that may violate IEEE or ISO standards |
6ff3a151 | 2134 | |
de32c0cb | 2135 | funswitch-loops |
c662432e | 2136 | Common Report Var(flag_unswitch_loops) Optimization |
f3fdaec4 | 2137 | Perform loop unswitching |
de32c0cb | 2138 | |
6ff3a151 | 2139 | funwind-tables |
c662432e | 2140 | Common Report Var(flag_unwind_tables) Optimization |
f3fdaec4 | 2141 | Just generate unwind tables for exception handling |
6ff3a151 | 2142 | |
da18ea94 RAE |
2143 | fuse-linker-plugin |
2144 | Common Undocumented | |
2145 | ||
e90afde6 JM |
2146 | ; Positive if we should track variables, negative if we should run |
2147 | ; the var-tracking pass only to discard debug annotations, zero if | |
2148 | ; we're not to run it. When flag_var_tracking == 2 (AUTODETECT_VALUE) it | |
2149 | ; will be set according to optimize, debug_info_level and debug_hooks | |
2150 | ; in process_options (). | |
014a1138 | 2151 | fvar-tracking |
e90afde6 | 2152 | Common Report Var(flag_var_tracking) Init(2) Optimization |
014a1138 JZ |
2153 | Perform variable tracking |
2154 | ||
e90afde6 JM |
2155 | ; Positive if we should track variables at assignments, negative if |
2156 | ; we should run the var-tracking pass only to discard debug | |
2157 | ; annotations. When flag_var_tracking_assignments == | |
2158 | ; AUTODETECT_VALUE it will be set according to flag_var_tracking. | |
b5b8b0ac | 2159 | fvar-tracking-assignments |
e90afde6 | 2160 | Common Report Var(flag_var_tracking_assignments) Init(2) Optimization |
b5b8b0ac AO |
2161 | Perform variable tracking by annotating assignments |
2162 | ||
e90afde6 JM |
2163 | ; Nonzero if we should toggle flag_var_tracking_assignments after |
2164 | ; processing options and computing its default. */ | |
b5b8b0ac | 2165 | fvar-tracking-assignments-toggle |
e90afde6 | 2166 | Common Report Var(flag_var_tracking_assignments_toggle) Optimization |
b5b8b0ac AO |
2167 | Toggle -fvar-tracking-assignments |
2168 | ||
62760ffd CT |
2169 | fvar-tracking-uninit |
2170 | Common Report Var(flag_var_tracking_uninit) Optimization | |
2171 | Perform variable tracking and also tag variables that are uninitialized | |
2172 | ||
79fe1b3b | 2173 | ftree-vectorize |
c662432e | 2174 | Common Report Var(flag_tree_vectorize) Optimization |
79fe1b3b DN |
2175 | Enable loop vectorization on trees |
2176 | ||
a70d6342 IR |
2177 | ftree-slp-vectorize |
2178 | Common Report Var(flag_tree_slp_vectorize) Init(2) Optimization | |
2179 | Enable basic block vectorization (SLP) on trees | |
2180 | ||
792ed98b HJ |
2181 | fvect-cost-model |
2182 | Common Report Var(flag_vect_cost_model) Optimization | |
2183 | Enable use of cost model in vectorization | |
2184 | ||
c12cc930 | 2185 | ftree-vect-loop-version |
c662432e | 2186 | Common Report Var(flag_tree_vect_loop_version) Init(1) Optimization |
c12cc930 KB |
2187 | Enable loop versioning when doing loop vectorization on trees |
2188 | ||
c866976a | 2189 | ftree-vectorizer-verbose= |
7cd23050 | 2190 | Common RejectNegative Joined UInteger |
4e994432 | 2191 | -ftree-vectorizer-verbose=<number> Set the verbosity level of the vectorizer |
c866976a | 2192 | |
fbf798fc | 2193 | ftree-scev-cprop |
21af5cdf | 2194 | Common Report Var(flag_tree_scev_cprop) Init(1) Optimization |
fbf798fc DN |
2195 | Enable copy propagation of scalar-evolution information. |
2196 | ||
31b66477 KC |
2197 | ; -fverbose-asm causes extra commentary information to be produced in |
2198 | ; the generated assembly code (to make it more readable). This option | |
2199 | ; is generally only of use to those who actually need to read the | |
2200 | ; generated assembly code (perhaps while debugging the compiler itself). | |
2201 | ; -fno-verbose-asm, the default, causes the extra information | |
2202 | ; to not be added and is useful when comparing two assembler files. | |
6ff3a151 | 2203 | fverbose-asm |
50431bc4 | 2204 | Common Report Var(flag_verbose_asm) |
f3fdaec4 | 2205 | Add extra commentary to assembler output |
6ff3a151 | 2206 | |
d7afec4b | 2207 | fvisibility= |
e6d4b984 | 2208 | Common Joined RejectNegative Enum(symbol_visibility) Var(default_visibility) Init(VISIBILITY_DEFAULT) |
d7afec4b ND |
2209 | -fvisibility=[default|internal|hidden|protected] Set the default symbol visibility |
2210 | ||
e6d4b984 JM |
2211 | Enum |
2212 | Name(symbol_visibility) Type(enum symbol_visibility) UnknownError(unrecognized visibility value %qs) | |
2213 | ||
2214 | EnumValue | |
2215 | Enum(symbol_visibility) String(default) Value(VISIBILITY_DEFAULT) | |
2216 | ||
2217 | EnumValue | |
2218 | Enum(symbol_visibility) String(internal) Value(VISIBILITY_INTERNAL) | |
2219 | ||
2220 | EnumValue | |
2221 | Enum(symbol_visibility) String(hidden) Value(VISIBILITY_HIDDEN) | |
2222 | ||
2223 | EnumValue | |
2224 | Enum(symbol_visibility) String(protected) Value(VISIBILITY_PROTECTED) | |
d7afec4b | 2225 | |
fca9dc00 | 2226 | fvpt |
c662432e | 2227 | Common Report Var(flag_value_profile_transformations) Optimization |
fca9dc00 ZD |
2228 | Use expression value profiles in optimizations |
2229 | ||
62551c66 | 2230 | fweb |
c662432e | 2231 | Common Report Var(flag_web) Init(2) Optimization |
62551c66 JH |
2232 | Construct webs and split unrelated uses of single variable |
2233 | ||
c2699190 XDL |
2234 | ftree-builtin-call-dce |
2235 | Common Report Var(flag_tree_builtin_call_dce) Init(0) Optimization | |
2236 | Enable conditional dead code elimination for builtin calls | |
2237 | ||
ce91e74c | 2238 | fwhole-program |
c662432e | 2239 | Common Report Var(flag_whole_program) Init(0) Optimization |
ce91e74c JH |
2240 | Perform whole program optimizations |
2241 | ||
6ff3a151 | 2242 | fwrapv |
c662432e | 2243 | Common Report Var(flag_wrapv) Optimization |
f3fdaec4 | 2244 | Assume signed arithmetic overflow wraps around |
6ff3a151 | 2245 | |
6ff3a151 | 2246 | fzero-initialized-in-bss |
50431bc4 | 2247 | Common Report Var(flag_zero_initialized_in_bss) Init(1) |
f3fdaec4 | 2248 | Put zero initialized data in the bss section |
6ff3a151 | 2249 | |
e01cc6dc NB |
2250 | g |
2251 | Common JoinedOrMissing | |
df38ffef NB |
2252 | Generate debug information in default format |
2253 | ||
2254 | gcoff | |
53b2323e | 2255 | Common JoinedOrMissing Negative(gdwarf-) |
df38ffef NB |
2256 | Generate debug information in COFF format |
2257 | ||
53b2323e | 2258 | gdwarf- |
98095aa3 | 2259 | Common Joined UInteger Var(dwarf_version) Init(4) Negative(gstabs) |
53b2323e | 2260 | Generate debug information in DWARF v2 (or later) format |
df38ffef NB |
2261 | |
2262 | ggdb | |
2263 | Common JoinedOrMissing | |
2264 | Generate debug information in default extended format | |
2265 | ||
5175cbaf SA |
2266 | gno-pubnames |
2267 | Common RejectNegative Var(debug_generate_pub_sections, 0) Init(-1) | |
2268 | Don't generate DWARF pubnames and pubtypes sections. | |
2269 | ||
2270 | gpubnames | |
2271 | Common RejectNegative Var(debug_generate_pub_sections, 1) | |
2272 | Generate DWARF pubnames and pubtypes sections. | |
2273 | ||
e967adf4 | 2274 | gno-record-gcc-switches |
98095aa3 | 2275 | Common RejectNegative Var(dwarf_record_gcc_switches,0) Init(1) |
e967adf4 JJ |
2276 | Don't record gcc command line switches in DWARF DW_AT_producer. |
2277 | ||
2278 | grecord-gcc-switches | |
2279 | Common RejectNegative Var(dwarf_record_gcc_switches,1) | |
2280 | Record gcc command line switches in DWARF DW_AT_producer. | |
2281 | ||
df38ffef | 2282 | gstabs |
14c7833c | 2283 | Common JoinedOrMissing Negative(gstabs+) |
df38ffef NB |
2284 | Generate debug information in STABS format |
2285 | ||
2286 | gstabs+ | |
14c7833c | 2287 | Common JoinedOrMissing Negative(gvms) |
df38ffef NB |
2288 | Generate debug information in extended STABS format |
2289 | ||
65f753a0 | 2290 | gno-strict-dwarf |
98095aa3 | 2291 | Common RejectNegative Var(dwarf_strict,0) Init(0) |
65f753a0 JJ |
2292 | Emit DWARF additions beyond selected version |
2293 | ||
2294 | gstrict-dwarf | |
f0036cca | 2295 | Common Report RejectNegative Var(dwarf_strict,1) |
65f753a0 JJ |
2296 | Don't emit DWARF additions beyond selected version |
2297 | ||
2153915d AO |
2298 | gtoggle |
2299 | Common Report Var(flag_gtoggle) | |
2300 | Toggle debug information generation | |
2301 | ||
df38ffef | 2302 | gvms |
14c7833c | 2303 | Common JoinedOrMissing Negative(gxcoff) |
df38ffef NB |
2304 | Generate debug information in VMS format |
2305 | ||
2306 | gxcoff | |
14c7833c | 2307 | Common JoinedOrMissing Negative(gxcoff+) |
df38ffef NB |
2308 | Generate debug information in XCOFF format |
2309 | ||
2310 | gxcoff+ | |
14c7833c | 2311 | Common JoinedOrMissing Negative(gcoff) |
df38ffef | 2312 | Generate debug information in extended XCOFF format |
e01cc6dc | 2313 | |
6d721f67 JM |
2314 | h |
2315 | Driver Joined Separate | |
2316 | ||
4adbd5dd MK |
2317 | iplugindir= |
2318 | Common Joined Var(plugindir_string) Init(0) | |
2319 | -iplugindir=<dir> Set <dir> to be the default plugin directory | |
2320 | ||
603349bf JM |
2321 | l |
2322 | Driver Joined Separate | |
2323 | ||
dd9f93dc JM |
2324 | n |
2325 | Driver | |
2326 | ||
603349bf JM |
2327 | no-canonical-prefixes |
2328 | Driver | |
2329 | ||
d9d16a19 JM |
2330 | nodefaultlibs |
2331 | Driver | |
2332 | ||
bab79a40 JM |
2333 | nostartfiles |
2334 | Driver | |
2335 | ||
d9d16a19 JM |
2336 | nostdlib |
2337 | Driver | |
2338 | ||
d185d268 | 2339 | o |
d5478783 | 2340 | Common Driver Joined Separate Var(asm_file_name) MissingArgError(missing filename after %qs) |
cf03fd63 | 2341 | -o <file> Place output into <file> |
d185d268 NB |
2342 | |
2343 | p | |
50431bc4 | 2344 | Common Var(profile_flag) |
cf03fd63 | 2345 | Enable function profiling |
d185d268 | 2346 | |
603349bf JM |
2347 | pass-exit-codes |
2348 | Driver Var(pass_exit_codes) | |
2349 | ||
d185d268 | 2350 | pedantic |
c1771a20 | 2351 | Common Alias(Wpedantic) |
d185d268 NB |
2352 | |
2353 | pedantic-errors | |
d5478783 | 2354 | Common Var(flag_pedantic_errors) |
cf03fd63 | 2355 | Like -pedantic but issue them as errors |
d185d268 | 2356 | |
d9d16a19 JM |
2357 | pg |
2358 | Driver | |
2359 | ||
603349bf JM |
2360 | pipe |
2361 | Driver Var(use_pipes) | |
2362 | ||
2363 | print-file-name= | |
2364 | Driver JoinedOrMissing Var(print_file_name) | |
2365 | ||
2366 | print-libgcc-file-name | |
2367 | Driver | |
2368 | ||
2369 | print-multi-directory | |
2370 | Driver Var(print_multi_directory) | |
2371 | ||
2372 | print-multi-lib | |
2373 | Driver Var(print_multi_lib) | |
2374 | ||
2375 | print-multi-os-directory | |
2376 | Driver Var(print_multi_os_directory) | |
2377 | ||
2378 | print-prog-name= | |
2379 | Driver JoinedOrMissing Var(print_prog_name) | |
2380 | ||
2381 | print-search-dirs | |
2382 | Driver Var(print_search_dirs) | |
2383 | ||
2384 | print-sysroot | |
2385 | Driver Var(print_sysroot) | |
2386 | ||
2387 | print-sysroot-headers-suffix | |
2388 | Driver Var(print_sysroot_headers_suffix) | |
2389 | ||
d7b42618 | 2390 | quiet |
603349bf | 2391 | Common Var(quiet_flag) RejectDriver |
cf03fd63 | 2392 | Do not display functions compiled or elapsed time |
d7b42618 | 2393 | |
dd9f93dc JM |
2394 | r |
2395 | Driver | |
2396 | ||
2397 | s | |
2398 | Driver | |
2399 | ||
603349bf JM |
2400 | save-temps |
2401 | Driver | |
2402 | ||
2403 | save-temps= | |
2404 | Driver Joined | |
2405 | ||
dd9f93dc JM |
2406 | t |
2407 | Driver | |
2408 | ||
603349bf JM |
2409 | time |
2410 | Driver Var(report_times) | |
2411 | ||
2412 | time= | |
2413 | Driver JoinedOrMissing | |
2414 | ||
e200444e JM |
2415 | u |
2416 | Driver Joined Separate | |
2417 | ||
5642f5d5 JM |
2418 | undef |
2419 | Driver | |
2420 | ; C option, but driver must not handle as "-u ndef". | |
2421 | ||
603349bf | 2422 | v |
d5478783 JM |
2423 | Common Driver Var(verbose_flag) |
2424 | Enable verbose output | |
603349bf | 2425 | |
d185d268 | 2426 | version |
603349bf | 2427 | Common Var(version_flag) RejectDriver |
cf03fd63 | 2428 | Display the compiler's version |
d185d268 NB |
2429 | |
2430 | w | |
50431bc4 | 2431 | Common Var(inhibit_warnings) |
cf03fd63 | 2432 | Suppress warnings |
d185d268 | 2433 | |
603349bf JM |
2434 | wrapper |
2435 | Driver Separate Var(wrapper_string) | |
2436 | ||
2437 | x | |
2438 | Driver Joined Separate | |
2439 | ||
528dc603 | 2440 | shared |
5460e1fc | 2441 | Driver RejectNegative Negative(pie) |
528dc603 L |
2442 | Create a shared library |
2443 | ||
603349bf JM |
2444 | shared-libgcc |
2445 | Driver | |
2446 | ||
2447 | specs | |
5de8299c | 2448 | Driver Separate Alias(specs=) |
603349bf JM |
2449 | |
2450 | specs= | |
2451 | Driver Joined | |
2452 | ||
d9d16a19 JM |
2453 | static |
2454 | Driver | |
2455 | ||
603349bf JM |
2456 | static-libgcc |
2457 | Driver | |
2458 | ||
2459 | static-libgfortran | |
2460 | Driver | |
2461 | ; Documented for Fortran, but always accepted by driver. | |
2462 | ||
2463 | static-libstdc++ | |
2464 | Driver | |
2465 | ||
7a938933 ILT |
2466 | static-libgo |
2467 | Driver | |
2468 | ; Documented for Go, but always accepted by driver. | |
2469 | ||
e200444e JM |
2470 | symbolic |
2471 | Driver | |
2472 | ||
528dc603 | 2473 | pie |
5460e1fc | 2474 | Driver RejectNegative Negative(shared) |
528dc603 L |
2475 | Create a position independent executable |
2476 | ||
6d721f67 JM |
2477 | z |
2478 | Driver Joined Separate | |
2479 | ||
d7b42618 | 2480 | ; This comment is to ensure we retain the blank line above. |