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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 | |
d7fb0a6d | 3 | ; Copyright (C) 2003, 2004, 2005, 2006, 2007, 2008, 2009, 2010 |
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 | ||
a75bfaa6 JM |
35 | ; 0 means straightforward implementation of complex divide acceptable. |
36 | ; 1 means wide ranges of inputs must work for complex divide. | |
37 | ; 2 means C99-like requirements for complex multiply and divide. | |
38 | Variable | |
39 | int flag_complex_method = 1 | |
40 | ||
41 | ; Nonzero if subexpressions must be evaluated from left-to-right. | |
42 | Variable | |
43 | int flag_evaluation_order = 0 | |
44 | ||
45 | ; Set the default region and algorithm for the integrated register | |
46 | ; allocator. | |
47 | ||
48 | Variable | |
49 | enum ira_algorithm flag_ira_algorithm = IRA_ALGORITHM_CB | |
50 | ||
51 | Variable | |
52 | enum ira_region flag_ira_region = IRA_REGION_MIXED | |
53 | ||
54 | ; Language specific warning pass for unused results. | |
55 | Variable | |
56 | bool flag_warn_unused_result = false | |
57 | ||
48476d13 JM |
58 | Variable |
59 | int *param_values | |
60 | ||
16949072 RG |
61 | ; Floating-point contraction mode, fast by default. |
62 | Variable | |
63 | enum fp_contract_mode flag_fp_contract_mode = FP_CONTRACT_FAST | |
64 | ||
d5478783 JM |
65 | ; The excess precision specified on the command line, or defaulted by |
66 | ; the front end. | |
67 | Variable | |
68 | enum excess_precision flag_excess_precision_cmdline = EXCESS_PRECISION_DEFAULT | |
69 | ||
70 | ; Nonzero if we should write GIMPLE bytecode for link-time optimization. | |
71 | Variable | |
72 | int flag_generate_lto | |
73 | ||
74 | ; True to warn about any objects definitions whose size is larger | |
75 | ; than N bytes. Also want about function definitions whose returned | |
76 | ; values are larger than N bytes, where N is 'larger_than_size'. | |
77 | Variable | |
78 | bool warn_larger_than | |
79 | ||
80 | Variable | |
81 | HOST_WIDE_INT larger_than_size | |
82 | ||
83 | ; True to warn about any function whose frame size is larger | |
84 | ; than N bytes. | |
85 | Variable | |
86 | bool warn_frame_larger_than | |
87 | ||
88 | Variable | |
89 | HOST_WIDE_INT frame_larger_than_size | |
90 | ||
91 | ; Nonzero means we should be saving declaration info into a .X file. | |
92 | Variable | |
93 | int flag_gen_aux_info = 0 | |
94 | ||
95 | ; Nonzero if we are compiling code for a shared library, zero for | |
96 | ; executable. | |
97 | Variable | |
98 | int flag_shlib | |
99 | ||
100 | ; The default visibility for all symbols (unless overridden). | |
101 | Variable | |
102 | enum symbol_visibility default_visibility = VISIBILITY_DEFAULT | |
103 | ||
104 | ; Set to the default thread-local storage (tls) model to use. | |
105 | Variable | |
106 | enum tls_model flag_tls_default = TLS_MODEL_GLOBAL_DYNAMIC | |
107 | ||
603349bf JM |
108 | ### |
109 | Driver | |
110 | ||
e200444e JM |
111 | -assemble |
112 | Driver Alias(S) | |
113 | ||
114 | -compile | |
115 | Driver Alias(c) | |
116 | ||
117 | -coverage | |
118 | Driver Alias(coverage) | |
119 | ||
120 | -debug | |
121 | Common Alias(g) | |
122 | ||
123 | -dump | |
124 | Common Separate Alias(d) | |
125 | ||
126 | -dump= | |
127 | Common Joined Alias(d) | |
128 | ||
129 | -dumpbase | |
130 | Common Separate Alias(dumpbase) | |
131 | ||
132 | -dumpdir | |
133 | Common Separate Alias(dumpdir) | |
134 | ||
135 | -entry | |
136 | Driver Separate Alias(e) | |
137 | ||
138 | -entry= | |
139 | Driver Joined Alias(e) | |
140 | ||
141 | -extra-warnings | |
142 | Common Warning Alias(Wextra) | |
143 | ||
144 | -for-assembler | |
145 | Driver Separate Alias(Xassembler) | |
146 | ||
147 | -for-assembler= | |
148 | Driver JoinedOrMissing Alias(Xassembler) | |
149 | ||
150 | -for-linker | |
151 | Driver Separate Alias(Xlinker) | |
152 | ||
153 | -for-linker= | |
154 | Driver JoinedOrMissing Alias(Xlinker) | |
155 | ||
156 | -force-link | |
157 | Driver Separate Alias(u) | |
158 | ||
159 | -force-link= | |
160 | Driver Joined Alias(u) | |
161 | ||
d185d268 | 162 | -help |
e200444e | 163 | Common Driver Var(help_flag) |
cf03fd63 | 164 | Display this information |
d185d268 | 165 | |
c662432e | 166 | -help= |
603349bf | 167 | Common Driver Report Joined |
c662432e | 168 | --help=<class> Display descriptions of a specific class of options. <class> is one or more of optimizers, target, warnings, undocumented, params |
903caebf | 169 | |
e200444e JM |
170 | -language |
171 | Driver Separate Alias(x) | |
172 | ||
173 | -language= | |
174 | Driver Joined Alias(x) | |
175 | ||
176 | -library-directory | |
177 | Driver Separate Alias(L) | |
178 | ||
179 | -library-directory= | |
180 | Driver Joined Alias(L) | |
181 | ||
182 | -no-canonical-prefixes | |
183 | Driver Alias(no-canonical-prefixes) | |
184 | ||
185 | -no-standard-libraries | |
186 | Driver Alias(nostdlib) | |
187 | ||
188 | -no-warnings | |
189 | Common Alias(w) | |
190 | ||
191 | -optimize | |
192 | Common Alias(O) | |
193 | ||
194 | -output | |
195 | Common Driver Separate Alias(o) MissingArgError(missing filename after %qs) | |
196 | ||
197 | -output= | |
198 | Common Driver Joined Alias(o) MissingArgError(missing filename after %qs) | |
199 | ||
200 | -pass-exit-codes | |
201 | Driver Alias(pass-exit-codes) | |
202 | ||
203 | -pedantic | |
204 | Common Alias(pedantic) | |
205 | ||
206 | -pedantic-errors | |
207 | Common Alias(pedantic-errors) | |
208 | ||
209 | -pie | |
210 | Common Alias(pie) | |
211 | ||
212 | -pipe | |
213 | Driver Alias(pipe) | |
214 | ||
215 | -prefix | |
216 | Driver Separate Alias(B) | |
217 | ||
218 | -prefix= | |
219 | Driver JoinedOrMissing Alias(B) | |
220 | ||
221 | -preprocess | |
222 | Driver Alias(E) | |
223 | ||
224 | -print-file-name | |
225 | Driver Separate Alias(print-file-name=) | |
226 | ||
227 | -print-file-name= | |
228 | Driver JoinedOrMissing Alias(print-file-name=) | |
229 | ||
230 | -print-libgcc-file-name | |
231 | Driver Alias(print-libgcc-file-name) | |
232 | ||
233 | -print-multi-directory | |
234 | Driver Alias(print-multi-directory) | |
235 | ||
236 | -print-multi-lib | |
237 | Driver Alias(print-multi-lib) | |
238 | ||
239 | -print-multi-os-directory | |
240 | Driver Alias(print-multi-os-directory) | |
241 | ||
242 | -print-prog-name | |
243 | Driver Separate Alias(print-prog-name=) | |
244 | ||
245 | -print-prog-name= | |
246 | Driver JoinedOrMissing Alias(print-prog-name=) | |
247 | ||
248 | -print-search-dirs | |
249 | Driver Alias(print-search-dirs) | |
250 | ||
251 | -print-sysroot | |
252 | Driver Alias(print-sysroot) | |
253 | ||
254 | -print-sysroot-headers-suffix | |
255 | Driver Alias(print-sysroot-headers-suffix) | |
256 | ||
257 | -profile | |
258 | Common Alias(p) | |
259 | ||
260 | -save-temps | |
261 | Driver Alias(save-temps) | |
262 | ||
263 | -shared | |
264 | Common Alias(shared) | |
265 | ||
266 | -specs | |
267 | Driver Separate Alias(specs=) | |
268 | ||
269 | -specs= | |
270 | Driver Joined Alias(specs=) | |
271 | ||
272 | -static | |
273 | Driver Alias(static) | |
274 | ||
275 | -symbolic | |
276 | Driver Alias(symbolic) | |
277 | ||
d185d268 | 278 | -target-help |
603349bf | 279 | Common Driver |
c662432e NC |
280 | Alias for --help=target |
281 | ||
e200444e JM |
282 | -time |
283 | Driver Alias(time) | |
284 | ||
285 | -verbose | |
286 | Driver Alias(v) | |
287 | ||
288 | ;; The driver used to convert options such as --help into forms such | |
289 | ;; as -fhelp; the following four entries are for compatibility with | |
290 | ;; any direct uses of those (undocumented) -f forms | |
c662432e | 291 | fhelp |
e200444e | 292 | Common Driver Alias(-help) |
c662432e NC |
293 | |
294 | fhelp= | |
e200444e | 295 | Common Driver Joined Alias(-help=) |
c662432e NC |
296 | |
297 | ftarget-help | |
e200444e | 298 | Common Driver Alias(-target-help) |
c662432e | 299 | |
41fd0f9b | 300 | fversion |
e200444e | 301 | Common Driver Alias(-version) |
41fd0f9b | 302 | |
c662432e NC |
303 | -param |
304 | Common Separate | |
305 | --param <param>=<value> Set parameter <param> to value. See below for a complete list of parameters | |
d185d268 | 306 | |
e200444e JM |
307 | -param= |
308 | Common Joined Alias(-param) | |
309 | ||
310 | -sysroot | |
311 | Driver Separate Alias(-sysroot=) | |
312 | ||
603349bf JM |
313 | -sysroot= |
314 | Driver JoinedOrMissing | |
315 | ||
d185d268 | 316 | -version |
603349bf JM |
317 | Common Driver |
318 | ||
319 | B | |
320 | Driver Joined Separate | |
321 | ||
322 | E | |
323 | Driver | |
d185d268 | 324 | |
d9d16a19 JM |
325 | L |
326 | Driver Joined Separate | |
327 | ||
903caebf | 328 | O |
ab442df7 | 329 | Common JoinedOrMissing Optimization |
cf03fd63 | 330 | -O<number> Set optimization level to <number> |
903caebf NB |
331 | |
332 | Os | |
ab442df7 | 333 | Common Optimization |
cf03fd63 | 334 | Optimize for space rather than speed |
903caebf | 335 | |
be6d3f0e RG |
336 | Ofast |
337 | Common Optimization | |
338 | Optimize for speed disregarding exact standards compliance | |
339 | ||
6d721f67 JM |
340 | R |
341 | Driver Joined Separate | |
342 | ||
603349bf JM |
343 | S |
344 | Driver | |
345 | ||
6d721f67 JM |
346 | T |
347 | Driver Joined Separate | |
348 | ||
349 | Tbss | |
350 | Driver Separate | |
351 | ||
352 | Tdata | |
353 | Driver Separate | |
354 | ||
355 | Ttext | |
356 | Driver Separate | |
357 | ||
903caebf | 358 | W |
5de8299c | 359 | Common RejectNegative Warning Alias(Wextra) |
28786366 | 360 | This switch is deprecated; use -Wextra instead |
903caebf | 361 | |
603349bf JM |
362 | Wa, |
363 | Driver JoinedOrMissing | |
364 | ||
365 | Wl, | |
366 | Driver JoinedOrMissing | |
367 | ||
368 | Wp, | |
369 | Driver JoinedOrMissing | |
370 | ||
e01cc6dc | 371 | Waggregate-return |
c662432e | 372 | Common Var(warn_aggregate_return) Warning |
28786366 | 373 | Warn about returning structures, unions or arrays |
e01cc6dc | 374 | |
590b1f2d | 375 | Warray-bounds |
21af5cdf | 376 | Common Var(warn_array_bounds) Warning |
590b1f2d DM |
377 | Warn if an array is accessed out of bounds |
378 | ||
5c498b10 | 379 | Wattributes |
c662432e | 380 | Common Var(warn_attributes) Init(1) Warning |
5c498b10 DD |
381 | Warn about inappropriate attribute usage |
382 | ||
e01cc6dc | 383 | Wcast-align |
c662432e | 384 | Common Var(warn_cast_align) Warning |
28786366 | 385 | Warn about pointer casts which increase alignment |
e01cc6dc | 386 | |
87cf0651 SB |
387 | Wcpp |
388 | Common Var(warn_cpp) Init(1) Warning | |
389 | Warn when a #warning directive is encountered | |
390 | ||
e01cc6dc | 391 | Wdeprecated-declarations |
c662432e | 392 | Common Var(warn_deprecated_decl) Init(1) Warning |
28786366 | 393 | Warn about uses of __attribute__((deprecated)) declarations |
e01cc6dc NB |
394 | |
395 | Wdisabled-optimization | |
c662432e | 396 | Common Var(warn_disabled_optimization) Warning |
28786366 | 397 | Warn when an optimization pass is disabled |
e01cc6dc NB |
398 | |
399 | Werror | |
50431bc4 | 400 | Common Var(warnings_are_errors) |
28786366 | 401 | Treat all warnings as errors |
e01cc6dc | 402 | |
79cf5994 DD |
403 | Werror= |
404 | Common Joined | |
405 | Treat specified warning as error | |
406 | ||
903caebf | 407 | Wextra |
62a67c94 | 408 | Common Var(extra_warnings) Warning |
cf03fd63 | 409 | Print extra (possibly unwanted) warnings |
903caebf | 410 | |
c65a01af | 411 | Wfatal-errors |
50431bc4 | 412 | Common Var(flag_fatal_errors) |
c65a01af RG |
413 | Exit on the first error occurred |
414 | ||
a214518f SP |
415 | Wframe-larger-than= |
416 | Common RejectNegative Joined UInteger | |
f94e1d66 | 417 | -Wframe-larger-than=<number> Warn if a function's stack frame requires more than <number> bytes |
a214518f | 418 | |
e01cc6dc | 419 | Winline |
c662432e | 420 | Common Var(warn_inline) Warning |
28786366 | 421 | Warn when an inlined function cannot be inlined |
e01cc6dc NB |
422 | |
423 | Wlarger-than- | |
5de8299c | 424 | Common RejectNegative Joined Warning Undocumented Alias(Wlarger-than=) |
e8fc888d MLI |
425 | |
426 | Wlarger-than= | |
427 | Common RejectNegative Joined UInteger Warning | |
428 | -Wlarger-than=<number> Warn if an object is larger than <number> bytes | |
e01cc6dc | 429 | |
f9cc1a70 | 430 | Wunsafe-loop-optimizations |
c662432e | 431 | Common Var(warn_unsafe_loop_optimizations) Warning |
f9cc1a70 PB |
432 | Warn if the loop cannot be optimized due to nontrivial assumptions. |
433 | ||
e01cc6dc | 434 | Wmissing-noreturn |
c662432e | 435 | Common Var(warn_missing_noreturn) Warning |
28786366 | 436 | Warn about functions which might be candidates for __attribute__((noreturn)) |
e01cc6dc | 437 | |
7621f5d5 VR |
438 | Wmudflap |
439 | Common Var(warn_mudflap) Init(1) Warning | |
440 | Warn about constructs not instrumented by -fmudflap | |
441 | ||
71834ad3 | 442 | Woverflow |
c662432e | 443 | Common Var(warn_overflow) Init(1) Warning |
71834ad3 RS |
444 | Warn about overflow in arithmetic expressions |
445 | ||
e01cc6dc | 446 | Wpacked |
c662432e | 447 | Common Var(warn_packed) Warning |
28786366 | 448 | Warn when the packed attribute has no effect on struct layout |
e01cc6dc NB |
449 | |
450 | Wpadded | |
c662432e | 451 | Common Var(warn_padded) Warning |
28786366 | 452 | Warn when padding is required to align structure members |
e01cc6dc NB |
453 | |
454 | Wshadow | |
c662432e | 455 | Common Var(warn_shadow) Warning |
28786366 | 456 | Warn when one local variable shadows another |
e01cc6dc | 457 | |
7d69de61 | 458 | Wstack-protector |
c662432e | 459 | Common Var(warn_stack_protect) Warning |
7d69de61 RH |
460 | Warn when not issuing stack smashing protection for some reason |
461 | ||
e01cc6dc | 462 | Wstrict-aliasing |
c662432e | 463 | Common Warning |
28786366 | 464 | Warn about code which might break strict aliasing rules |
e01cc6dc | 465 | |
5399d643 | 466 | Wstrict-aliasing= |
fcfbd84e | 467 | Common Joined RejectNegative UInteger Var(warn_strict_aliasing) Init(-1) Warning |
5399d643 JW |
468 | Warn about code which might break strict aliasing rules |
469 | ||
6ac01510 | 470 | Wstrict-overflow |
21af5cdf | 471 | Common Warning |
6ac01510 ILT |
472 | Warn about optimizations that assume that signed overflow is undefined |
473 | ||
474 | Wstrict-overflow= | |
fcfbd84e | 475 | Common Joined RejectNegative UInteger Var(warn_strict_overflow) Init(-1) Warning |
6ac01510 ILT |
476 | Warn about optimizations that assume that signed overflow is undefined |
477 | ||
5dc16b19 MLI |
478 | Wsuggest-attribute=const |
479 | Common Var(warn_suggest_attribute_const) Warning | |
480 | Warn about functions which might be candidates for __attribute__((const)) | |
481 | ||
482 | Wsuggest-attribute=pure | |
483 | Common Var(warn_suggest_attribute_pure) Warning | |
484 | Warn about functions which might be candidates for __attribute__((pure)) | |
485 | ||
7ea6b6cf JH |
486 | Wsuggest-attribute=noreturn |
487 | Common Var(warn_suggest_attribute_noreturn) Warning | |
488 | Warn about functions which might be candidates for __attribute__((noreturn)) | |
489 | ||
e01cc6dc | 490 | Wswitch |
c662432e | 491 | Common Var(warn_switch) Warning |
28786366 | 492 | Warn about enumerated switches, with no default, missing a case |
e01cc6dc NB |
493 | |
494 | Wswitch-default | |
c662432e | 495 | Common Var(warn_switch_default) Warning |
28786366 | 496 | Warn about enumerated switches missing a \"default:\" statement |
e01cc6dc NB |
497 | |
498 | Wswitch-enum | |
c662432e | 499 | Common Var(warn_switch_enum) Warning |
28786366 | 500 | Warn about all enumerated switches missing a specific case |
e01cc6dc NB |
501 | |
502 | Wsystem-headers | |
c662432e | 503 | Common Var(warn_system_headers) Warning |
f3fdaec4 | 504 | Do not suppress warnings from system headers |
e01cc6dc | 505 | |
8ffadef9 MG |
506 | Wtrampolines |
507 | Common Var(warn_trampolines) Warning | |
508 | Warn whenever a trampoline is generated | |
509 | ||
faebccf9 DN |
510 | Wtype-limits |
511 | Common Var(warn_type_limits) Init(-1) Warning | |
512 | Warn if a comparison is always true or always false due to the limited range of the data type | |
513 | ||
e01cc6dc | 514 | Wuninitialized |
62a67c94 | 515 | Common Var(warn_uninitialized) Init(-1) Warning |
28786366 | 516 | Warn about uninitialized automatic variables |
e01cc6dc NB |
517 | |
518 | Wunreachable-code | |
2d2bd949 | 519 | Common Ignore |
bc3c12a2 | 520 | Does nothing. Preserved for backward compatibility. |
e01cc6dc | 521 | |
903caebf | 522 | Wunused |
e73f7547 | 523 | Common Var(warn_unused) Init(0) Warning |
cf03fd63 | 524 | Enable all -Wunused- warnings |
903caebf | 525 | |
ebfbbdc5 JJ |
526 | Wunused-but-set-parameter |
527 | Common Var(warn_unused_but_set_parameter) Init(-1) Warning | |
528 | Warn when a function parameter is only set, otherwise unused | |
529 | ||
530 | Wunused-but-set-variable | |
531 | Common Var(warn_unused_but_set_variable) Init(-1) Warning | |
532 | Warn when a variable is only set, otherwise unused | |
533 | ||
e01cc6dc | 534 | Wunused-function |
e73f7547 | 535 | Common Var(warn_unused_function) Init(-1) Warning |
28786366 | 536 | Warn when a function is unused |
e01cc6dc NB |
537 | |
538 | Wunused-label | |
e73f7547 | 539 | Common Var(warn_unused_label) Init(-1) Warning |
28786366 | 540 | Warn when a label is unused |
e01cc6dc NB |
541 | |
542 | Wunused-parameter | |
e73f7547 | 543 | Common Var(warn_unused_parameter) Init(-1) Warning |
28786366 | 544 | Warn when a function parameter is unused |
e01cc6dc NB |
545 | |
546 | Wunused-value | |
e73f7547 | 547 | Common Var(warn_unused_value) Init(-1) Warning |
28786366 | 548 | Warn when an expression value is unused |
e01cc6dc NB |
549 | |
550 | Wunused-variable | |
e73f7547 | 551 | Common Var(warn_unused_variable) Init(-1) Warning |
28786366 | 552 | Warn when a variable is unused |
e01cc6dc | 553 | |
16c1c158 | 554 | Wcoverage-mismatch |
650cfcab NV |
555 | Common Var(warn_coverage_mismatch) Init(1) Warning |
556 | Warn in case profiles in -fprofile-use do not match | |
16c1c158 | 557 | |
603349bf JM |
558 | Xassembler |
559 | Driver Separate | |
560 | ||
561 | Xlinker | |
562 | Driver Separate | |
563 | ||
564 | Xpreprocessor | |
565 | Driver Separate | |
566 | ||
d185d268 | 567 | aux-info |
d5478783 | 568 | Common Separate Var(aux_info_file_name) |
cf03fd63 | 569 | -aux-info <file> Emit declaration information into <file> |
d185d268 NB |
570 | |
571 | aux-info= | |
5de8299c | 572 | Common Joined Alias(aux-info) |
d185d268 NB |
573 | |
574 | auxbase | |
d5478783 | 575 | Common Separate RejectDriver Var(aux_base_name) |
d185d268 NB |
576 | |
577 | auxbase-strip | |
603349bf JM |
578 | Common Separate RejectDriver |
579 | ||
e200444e JM |
580 | coverage |
581 | Driver | |
582 | ||
603349bf JM |
583 | c |
584 | Driver | |
d185d268 NB |
585 | |
586 | d | |
587 | Common Joined | |
cf03fd63 | 588 | -d<letters> Enable dumps from specific passes of the compiler |
d185d268 NB |
589 | |
590 | dumpbase | |
d5478783 | 591 | Common Separate Var(dump_base_name) |
cf03fd63 | 592 | -dumpbase <file> Set the file basename to be used for dumps |
d185d268 | 593 | |
d7fb0a6d | 594 | dumpdir |
d5478783 | 595 | Common Separate Var(dump_dir_name) |
316fc112 | 596 | -dumpdir <dir> Set the directory name to be used for dumps |
d7fb0a6d | 597 | |
603349bf JM |
598 | dumpmachine |
599 | Driver | |
600 | ||
601 | dumpspecs | |
602 | Driver | |
603 | ||
604 | dumpversion | |
605 | Driver | |
606 | ||
e200444e JM |
607 | e |
608 | Driver Joined Separate | |
609 | ||
31b66477 KC |
610 | ; The version of the C++ ABI in use. The following values are allowed: |
611 | ; | |
612 | ; 0: The version of the ABI believed most conformant with the C++ ABI | |
613 | ; specification. This ABI may change as bugs are discovered and fixed. | |
614 | ; Therefore, 0 will not necessarily indicate the same ABI in different | |
615 | ; versions of G++. | |
616 | ; | |
617 | ; 1: The version of the ABI first used in G++ 3.2. | |
618 | ; | |
abfe01ce JM |
619 | ; 2: The version of the ABI first used in G++ 3.4 (and current default). |
620 | ; | |
621 | ; 3: The version of the ABI that fixes the missing underscore | |
622 | ; in template non-type arguments of pointer type. | |
623 | ; | |
624 | ; 4: The version of the ABI that introduces unambiguous mangling of | |
625 | ; vector types. | |
99a8d35b | 626 | ; |
31b66477 KC |
627 | ; Additional positive integers will be assigned as new versions of |
628 | ; the ABI become the default version of the ABI. | |
57782ad8 | 629 | fabi-version= |
fcfbd84e | 630 | Common Joined RejectNegative UInteger Var(flag_abi_version) Init(2) |
57782ad8 | 631 | |
6ff3a151 | 632 | falign-functions |
ab442df7 | 633 | Common Report Var(align_functions,0) Optimization UInteger |
f3fdaec4 | 634 | Align the start of functions |
6ff3a151 | 635 | |
058de654 | 636 | falign-functions= |
d5478783 | 637 | Common RejectNegative Joined UInteger Var(align_functions) |
058de654 | 638 | |
6ff3a151 | 639 | falign-jumps |
ab442df7 | 640 | Common Report Var(align_jumps,0) Optimization UInteger |
f3fdaec4 | 641 | Align labels which are only reached by jumping |
6ff3a151 | 642 | |
058de654 | 643 | falign-jumps= |
d5478783 | 644 | Common RejectNegative Joined UInteger Var(align_jumps) |
058de654 | 645 | |
6ff3a151 | 646 | falign-labels |
ab442df7 | 647 | Common Report Var(align_labels,0) Optimization UInteger |
f3fdaec4 | 648 | Align all labels |
6ff3a151 | 649 | |
058de654 | 650 | falign-labels= |
d5478783 | 651 | Common RejectNegative Joined UInteger Var(align_labels) |
058de654 | 652 | |
6ff3a151 | 653 | falign-loops |
3020190e | 654 | Common Report Var(align_loops,0) Optimization UInteger |
f3fdaec4 | 655 | Align the start of loops |
6ff3a151 | 656 | |
058de654 | 657 | falign-loops= |
d5478783 | 658 | Common RejectNegative Joined UInteger Var(align_loops) |
058de654 | 659 | |
6ff3a151 | 660 | fargument-alias |
2d2bd949 | 661 | Common Ignore |
0d3c82d6 | 662 | Does nothing. Preserved for backward compatibility. |
6ff3a151 NB |
663 | |
664 | fargument-noalias | |
2d2bd949 | 665 | Common Ignore |
0d3c82d6 | 666 | Does nothing. Preserved for backward compatibility. |
6ff3a151 NB |
667 | |
668 | fargument-noalias-global | |
2d2bd949 | 669 | Common Ignore |
0d3c82d6 | 670 | Does nothing. Preserved for backward compatibility. |
6ff3a151 | 671 | |
0698a1d2 | 672 | fargument-noalias-anything |
2d2bd949 | 673 | Common Ignore |
0d3c82d6 | 674 | Does nothing. Preserved for backward compatibility. |
0698a1d2 | 675 | |
6ff3a151 | 676 | fasynchronous-unwind-tables |
c662432e | 677 | Common Report Var(flag_asynchronous_unwind_tables) Optimization |
f3fdaec4 | 678 | Generate unwind tables that are exact at each instruction boundary |
6ff3a151 | 679 | |
6fb5fa3c DB |
680 | fauto-inc-dec |
681 | Common Report Var(flag_auto_inc_dec) Init(1) | |
682 | Generate auto-inc/dec instructions | |
683 | ||
31b66477 KC |
684 | ; -fcheck-bounds causes gcc to generate array bounds checks. |
685 | ; For C, C++ and ObjC: defaults off. | |
686 | ; For Java: defaults to on. | |
687 | ; For Fortran: defaults to off. | |
6ff3a151 | 688 | fbounds-check |
50431bc4 | 689 | Common Report Var(flag_bounds_check) |
f3fdaec4 | 690 | Generate code to check bounds before indexing arrays |
6ff3a151 NB |
691 | |
692 | fbranch-count-reg | |
c662432e | 693 | Common Report Var(flag_branch_on_count_reg) Init(1) Optimization |
f3fdaec4 | 694 | Replace add, compare, branch with branch on count register |
6ff3a151 NB |
695 | |
696 | fbranch-probabilities | |
c662432e | 697 | Common Report Var(flag_branch_probabilities) Optimization |
f3fdaec4 | 698 | Use profiling information for branch probabilities |
6ff3a151 | 699 | |
de32c0cb | 700 | fbranch-target-load-optimize |
c662432e | 701 | Common Report Var(flag_branch_target_load_optimize) Optimization |
f3fdaec4 | 702 | Perform branch target load optimization before prologue / epilogue threading |
de32c0cb NB |
703 | |
704 | fbranch-target-load-optimize2 | |
c662432e | 705 | Common Report Var(flag_branch_target_load_optimize2) Optimization |
f3fdaec4 | 706 | Perform branch target load optimization after prologue / epilogue threading |
de32c0cb | 707 | |
1194fc79 | 708 | fbtr-bb-exclusive |
c662432e | 709 | Common Report Var(flag_btr_bb_exclusive) Optimization |
1194fc79 R |
710 | Restrict target load migration not to re-use registers in any basic block |
711 | ||
058de654 NB |
712 | fcall-saved- |
713 | Common Joined RejectNegative | |
cf03fd63 | 714 | -fcall-saved-<register> Mark <register> as being preserved across functions |
058de654 NB |
715 | |
716 | fcall-used- | |
717 | Common Joined RejectNegative | |
cf03fd63 | 718 | -fcall-used-<register> Mark <register> as being corrupted by function calls |
058de654 | 719 | |
31b66477 KC |
720 | ; Nonzero for -fcaller-saves: allocate values in regs that need to |
721 | ; be saved across function calls, if that produces overall better code. | |
722 | ; Optional now, so people can test it. | |
de32c0cb | 723 | fcaller-saves |
c662432e | 724 | Common Report Var(flag_caller_saves) Optimization |
f3fdaec4 | 725 | Save registers around function calls |
de32c0cb | 726 | |
3d8864c0 SP |
727 | fcheck-data-deps |
728 | Common Report Var(flag_check_data_deps) | |
729 | Compare the results of several data dependence analyzers. | |
730 | ||
ccaeeafe NC |
731 | fcombine-stack-adjustments |
732 | Common Report Var(flag_combine_stack_adjustments) Optimization | |
733 | Looks for opportunities to reduce stack adjustments and stack references. | |
734 | ||
6ff3a151 | 735 | fcommon |
c662432e | 736 | Common Report Var(flag_no_common,0) Optimization |
f3fdaec4 | 737 | Do not put uninitialized globals in the common section |
6ff3a151 | 738 | |
603349bf JM |
739 | fcompare-debug |
740 | Driver | |
741 | ; Converted by the driver to -fcompare-debug= options. | |
742 | ||
2153915d | 743 | fcompare-debug= |
603349bf | 744 | Common Driver JoinedOrMissing RejectNegative Var(flag_compare_debug_opt) |
f94e1d66 | 745 | -fcompare-debug[=<opts>] Compile with and without e.g. -gtoggle, and compare the final-insns dump |
2153915d AO |
746 | |
747 | fcompare-debug-second | |
e3339d0f | 748 | Common Driver RejectNegative |
2153915d AO |
749 | Run only the second compilation of -fcompare-debug |
750 | ||
b5b8b0ac AO |
751 | fconserve-stack |
752 | Common Var(flag_conserve_stack) Optimization | |
753 | Do not perform optimizations increasing noticeably stack usage | |
754 | ||
6ff3a151 | 755 | fcprop-registers |
c662432e | 756 | Common Report Var(flag_cprop_registers) Optimization |
f3fdaec4 | 757 | Perform a register copy-propagation optimization pass |
6ff3a151 | 758 | |
de32c0cb | 759 | fcrossjumping |
c662432e | 760 | Common Report Var(flag_crossjumping) Optimization |
f3fdaec4 | 761 | Perform cross-jumping optimization |
de32c0cb NB |
762 | |
763 | fcse-follow-jumps | |
c662432e | 764 | Common Report Var(flag_cse_follow_jumps) Optimization |
f3fdaec4 | 765 | When running CSE, follow jumps to their targets |
de32c0cb NB |
766 | |
767 | fcse-skip-blocks | |
2d2bd949 | 768 | Common Ignore |
5f39ad47 | 769 | Does nothing. Preserved for backward compatibility. |
de32c0cb | 770 | |
c7463669 | 771 | fcx-limited-range |
c662432e | 772 | Common Report Var(flag_cx_limited_range) Optimization |
c7463669 RH |
773 | Omit range reduction step when performing complex division |
774 | ||
35085f76 JB |
775 | fcx-fortran-rules |
776 | Common Report Var(flag_cx_fortran_rules) Optimization | |
777 | Complex multiplication and division follow Fortran rules | |
778 | ||
6ff3a151 | 779 | fdata-sections |
c662432e | 780 | Common Report Var(flag_data_sections) Optimization |
f3fdaec4 | 781 | Place data items into their own section |
6ff3a151 | 782 | |
0a090f42 SP |
783 | fdbg-cnt-list |
784 | Common Report | |
785 | List all available debugging counters with their limits and counts. | |
786 | ||
6fb5fa3c DB |
787 | fdbg-cnt= |
788 | Common RejectNegative Joined | |
f94e1d66 | 789 | -fdbg-cnt=<counter>:<limit>[,<counter>:<limit>,...] Set the debug counter limit. |
6fb5fa3c | 790 | |
c8aea42c PB |
791 | fdebug-prefix-map= |
792 | Common Joined RejectNegative | |
793 | Map one directory name to another in debug information | |
794 | ||
31b66477 KC |
795 | ; Nonzero for -fdefer-pop: don't pop args after each function call |
796 | ; instead save them up to pop many calls' args with one insns. | |
de32c0cb | 797 | fdefer-pop |
c662432e | 798 | Common Report Var(flag_defer_pop) Optimization |
f3fdaec4 | 799 | Defer popping functions args from stack until later |
de32c0cb NB |
800 | |
801 | fdelayed-branch | |
c662432e | 802 | Common Report Var(flag_delayed_branch) Optimization |
f3fdaec4 | 803 | Attempt to fill delay slots of branch instructions |
de32c0cb NB |
804 | |
805 | fdelete-null-pointer-checks | |
1ad2f450 | 806 | Common Report Var(flag_delete_null_pointer_checks) Init(1) Optimization |
f3fdaec4 | 807 | Delete useless null pointer checks |
de32c0cb NB |
808 | |
809 | fdiagnostics-show-location= | |
810 | Common Joined RejectNegative | |
cf03fd63 | 811 | -fdiagnostics-show-location=[once|every-line] How often to emit source location at the beginning of line-wrapped diagnostics |
de32c0cb | 812 | |
ccf08a6e | 813 | fdiagnostics-show-option |
c7d0de89 | 814 | Common Var(flag_diagnostics_show_option) Init(1) |
c85ce869 | 815 | Amend appropriate diagnostic messages with the command line option that controls them |
ccf08a6e | 816 | |
6de9cd9a DN |
817 | fdump- |
818 | Common Joined RejectNegative | |
819 | -fdump-<type> Dump various compiler internals to a file | |
820 | ||
d1583032 JM |
821 | fdump-final-insns |
822 | Driver RejectNegative | |
823 | ||
2153915d AO |
824 | fdump-final-insns= |
825 | Common RejectNegative Joined Var(flag_dump_final_insns) | |
826 | -fdump-final-insns=filename Dump to filename the insns at the end of translation | |
827 | ||
24a7799e R |
828 | fdump-noaddr |
829 | Common Report Var(flag_dump_noaddr) | |
830 | Suppress output of addresses in debugging dumps | |
831 | ||
6ff3a151 | 832 | fdump-unnumbered |
e90afde6 | 833 | Common Report Var(flag_dump_unnumbered) |
24a7799e | 834 | Suppress output of instruction numbers, line number notes and addresses in debugging dumps |
6ff3a151 | 835 | |
2aa7c49b | 836 | fdump-unnumbered-links |
e90afde6 | 837 | Common Report Var(flag_dump_unnumbered_links) |
2aa7c49b AO |
838 | Suppress output of previous and next insn numbers in debugging dumps |
839 | ||
b5b8b0ac AO |
840 | fdwarf2-cfi-asm |
841 | Common Report Var(flag_dwarf2_cfi_asm) Init(HAVE_GAS_CFI_DIRECTIVE) | |
842 | Enable CFI tables via GAS assembler directives. | |
843 | ||
355866de | 844 | fearly-inlining |
c662432e | 845 | Common Report Var(flag_early_inlining) Init(1) Optimization |
355866de RG |
846 | Perform early inlining |
847 | ||
de32c0cb | 848 | feliminate-dwarf2-dups |
50431bc4 | 849 | Common Report Var(flag_eliminate_dwarf2_dups) |
f3fdaec4 | 850 | Perform DWARF2 duplicate elimination |
de32c0cb | 851 | |
07ffa034 MJ |
852 | fipa-sra |
853 | Common Report Var(flag_ipa_sra) Init(0) Optimization | |
854 | Perform interprocedural reduction of aggregates | |
855 | ||
6a08f7b3 | 856 | feliminate-unused-debug-symbols |
50431bc4 | 857 | Common Report Var(flag_debug_only_used_symbols) |
f3fdaec4 | 858 | Perform unused type elimination in debug info |
6a08f7b3 | 859 | |
de32c0cb | 860 | feliminate-unused-debug-types |
50431bc4 | 861 | Common Report Var(flag_eliminate_unused_debug_types) Init(1) |
f3fdaec4 | 862 | Perform unused type elimination in debug info |
de32c0cb | 863 | |
e713adf6 | 864 | femit-class-debug-always |
eae8e474 | 865 | Common Report Var(flag_emit_class_debug_always) Init(0) |
e713adf6 CD |
866 | Do not suppress C++ class debug information. |
867 | ||
77831620 CC |
868 | fenable-icf-debug |
869 | Common Report Var(flag_enable_icf_debug) | |
870 | Generate debug information to support Identical Code Folding (ICF) | |
871 | ||
6ff3a151 | 872 | fexceptions |
c662432e | 873 | Common Report Var(flag_exceptions) Optimization |
f3fdaec4 | 874 | Enable exception handling |
6ff3a151 | 875 | |
de32c0cb | 876 | fexpensive-optimizations |
c662432e | 877 | Common Report Var(flag_expensive_optimizations) Optimization |
f3fdaec4 | 878 | Perform a number of minor, expensive optimizations |
de32c0cb | 879 | |
8ce94e44 JM |
880 | fexcess-precision= |
881 | Common Joined RejectNegative | |
882 | -fexcess-precision=[fast|standard] Specify handling of excess floating-point precision | |
883 | ||
058de654 NB |
884 | ffast-math |
885 | Common | |
886 | ||
6ff3a151 | 887 | ffinite-math-only |
c662432e | 888 | Common Report Var(flag_finite_math_only) Optimization |
f3fdaec4 | 889 | Assume no NaNs or infinities are generated |
6ff3a151 | 890 | |
058de654 NB |
891 | ffixed- |
892 | Common Joined RejectNegative | |
cf03fd63 | 893 | -ffixed-<register> Mark <register> as being unavailable to the compiler |
058de654 | 894 | |
de32c0cb | 895 | ffloat-store |
c662432e | 896 | Common Report Var(flag_float_store) Optimization |
31b66477 | 897 | Don't allocate floats and doubles in extended-precision registers |
de32c0cb NB |
898 | |
899 | fforce-addr | |
2d2bd949 | 900 | Common Ignore |
3de5e93a | 901 | Does nothing. Preserved for backward compatibility. |
de32c0cb | 902 | |
2ca2b607 SB |
903 | fforward-propagate |
904 | Common Report Var(flag_forward_propagate) Optimization | |
a52b023a PB |
905 | Perform a forward propagation pass on RTL |
906 | ||
16949072 RG |
907 | ffp-contract= |
908 | Common Joined RejectNegative | |
909 | -ffp-contract=[off|on|fast] Perform floating-point expression contraction. | |
910 | ||
31b66477 KC |
911 | ; Nonzero means don't put addresses of constant functions in registers. |
912 | ; Used for compiling the Unix kernel, where strange substitutions are | |
913 | ; done on the assembly output. | |
de32c0cb | 914 | ffunction-cse |
50431bc4 | 915 | Common Report Var(flag_no_function_cse,0) |
f3fdaec4 | 916 | Allow function addresses to be held in registers |
de32c0cb | 917 | |
6ff3a151 | 918 | ffunction-sections |
50431bc4 | 919 | Common Report Var(flag_function_sections) |
f3fdaec4 | 920 | Place each function into its own section |
6ff3a151 | 921 | |
de32c0cb | 922 | fgcse |
c662432e | 923 | Common Report Var(flag_gcse) Optimization |
f3fdaec4 | 924 | Perform global common subexpression elimination |
de32c0cb NB |
925 | |
926 | fgcse-lm | |
c662432e | 927 | Common Report Var(flag_gcse_lm) Init(1) Optimization |
f3fdaec4 | 928 | Perform enhanced load motion during global common subexpression elimination |
de32c0cb NB |
929 | |
930 | fgcse-sm | |
c662432e | 931 | Common Report Var(flag_gcse_sm) Init(0) Optimization |
f3fdaec4 | 932 | Perform store motion after global common subexpression elimination |
de32c0cb | 933 | |
f5f2e3cd | 934 | fgcse-las |
c662432e | 935 | Common Report Var(flag_gcse_las) Init(0) Optimization |
f9957958 MH |
936 | Perform redundant load after store elimination in global common subexpression |
937 | elimination | |
938 | ||
939 | fgcse-after-reload | |
c662432e | 940 | Common Report Var(flag_gcse_after_reload) Optimization |
f9957958 | 941 | Perform global common subexpression elimination after register allocation |
c85ce869 | 942 | has finished |
f5f2e3cd | 943 | |
d0a58904 | 944 | ; This option is not documented yet as its semantics will change. |
f8bf9252 SP |
945 | fgraphite |
946 | Common Report Var(flag_graphite) | |
947 | Enable in and out of Graphite representation | |
948 | ||
204b560f SP |
949 | fgraphite-identity |
950 | Common Report Var(flag_graphite_identity) Optimization | |
951 | Enable Graphite Identity transformation | |
952 | ||
3cf0e270 SP |
953 | floop-parallelize-all |
954 | Common Report Var(flag_loop_parallelize_all) Optimization | |
204b560f SP |
955 | Mark all loops as parallel |
956 | ||
f8bf9252 SP |
957 | floop-strip-mine |
958 | Common Report Var(flag_loop_strip_mine) Optimization | |
959 | Enable Loop Strip Mining transformation | |
960 | ||
961 | floop-interchange | |
962 | Common Report Var(flag_loop_interchange) Optimization | |
963 | Enable Loop Interchange transformation | |
964 | ||
965 | floop-block | |
966 | Common Report Var(flag_loop_block) Optimization | |
967 | Enable Loop Blocking transformation | |
968 | ||
98af4c9f SP |
969 | floop-flatten |
970 | Common Report Var(flag_loop_flatten) Optimization | |
971 | Enable Loop Flattening transformation | |
972 | ||
6a78b724 DD |
973 | fstrict-volatile-bitfields |
974 | Common Report Var(flag_strict_volatile_bitfields) Init(-1) | |
975 | Force bitfield accesses to match their type width | |
976 | ||
6ff3a151 | 977 | fguess-branch-probability |
c662432e | 978 | Common Report Var(flag_guess_branch_prob) Optimization |
f3fdaec4 | 979 | Enable guessing of branch probabilities |
6ff3a151 | 980 | |
31b66477 KC |
981 | ; Nonzero means ignore `#ident' directives. 0 means handle them. |
982 | ; Generate position-independent code for executables if possible | |
983 | ; On SVR4 targets, it also controls whether or not to emit a | |
984 | ; string identifying the compiler. | |
6ff3a151 | 985 | fident |
50431bc4 | 986 | Common Report Var(flag_no_ident,0) |
f3fdaec4 | 987 | Process #ident directives |
6ff3a151 | 988 | |
de32c0cb | 989 | fif-conversion |
c662432e | 990 | Common Report Var(flag_if_conversion) Optimization |
f3fdaec4 | 991 | Perform conversion of conditional jumps to branchless equivalents |
de32c0cb NB |
992 | |
993 | fif-conversion2 | |
c662432e | 994 | Common Report Var(flag_if_conversion2) Optimization |
f3fdaec4 | 995 | Perform conversion of conditional jumps to conditional execution |
de32c0cb | 996 | |
384a5197 SP |
997 | ftree-loop-if-convert |
998 | Common Report Var(flag_tree_loop_if_convert) Init(-1) Optimization | |
999 | Convert conditional jumps in innermost loops to branchless equivalents | |
1000 | ||
bd544141 SP |
1001 | ftree-loop-if-convert-stores |
1002 | Common Report Var(flag_tree_loop_if_convert_stores) Optimization | |
1003 | Also if-convert conditional jumps containing memory writes | |
1004 | ||
31b66477 KC |
1005 | ; -finhibit-size-directive inhibits output of .size for ELF. |
1006 | ; This is used only for compiling crtstuff.c, | |
1007 | ; and it may be extended to other effects | |
1008 | ; needed for crtstuff.c on other systems. | |
6ff3a151 | 1009 | finhibit-size-directive |
50431bc4 | 1010 | Common Report Var(flag_inhibit_size_directive) |
f3fdaec4 | 1011 | Do not generate .size directives |
6ff3a151 | 1012 | |
3e293154 MJ |
1013 | findirect-inlining |
1014 | Common Report Var(flag_indirect_inlining) | |
1015 | Perform indirect inlining | |
1016 | ||
31b66477 KC |
1017 | ; Nonzero means that functions declared `inline' will be treated |
1018 | ; as `static'. Prevents generation of zillions of copies of unused | |
1019 | ; static inline functions; instead, `inlines' are written out | |
1020 | ; only when actually used. Used in conjunction with -g. Also | |
1021 | ; does the right thing with #pragma interface. | |
de32c0cb | 1022 | finline |
e90acd93 | 1023 | Common Report Var(flag_no_inline,0) Init(0) |
f3fdaec4 | 1024 | Pay attention to the \"inline\" keyword |
de32c0cb | 1025 | |
4d4b8cb9 JH |
1026 | finline-small-functions |
1027 | Common Report Var(flag_inline_small_functions) Optimization | |
1028 | Integrate simple functions into their callers when code size is known to not growth | |
1029 | ||
de32c0cb | 1030 | finline-functions |
c662432e | 1031 | Common Report Var(flag_inline_functions) Optimization |
f3fdaec4 | 1032 | Integrate simple functions into their callers |
de32c0cb | 1033 | |
355866de | 1034 | finline-functions-called-once |
c662432e | 1035 | Common Report Var(flag_inline_functions_called_once) Init(1) Optimization |
355866de | 1036 | Integrate functions called once into their callers |
d63db217 | 1037 | |
d302c9d6 | 1038 | finline-limit- |
5de8299c | 1039 | Common RejectNegative Joined Alias(finline-limit=) |
d302c9d6 NB |
1040 | |
1041 | finline-limit= | |
1042 | Common RejectNegative Joined UInteger | |
cf03fd63 | 1043 | -finline-limit=<number> Limit the size of inlined functions to <number> |
d302c9d6 | 1044 | |
6ff3a151 | 1045 | finstrument-functions |
50431bc4 | 1046 | Common Report Var(flag_instrument_function_entry_exit) |
f3fdaec4 | 1047 | Instrument function entry and exit with profiling calls |
6ff3a151 | 1048 | |
8d5a7d1f ILT |
1049 | finstrument-functions-exclude-function-list= |
1050 | Common RejectNegative Joined | |
1051 | -finstrument-functions-exclude-function-list=name,... Do not instrument listed functions | |
1052 | ||
1053 | finstrument-functions-exclude-file-list= | |
1054 | Common RejectNegative Joined | |
1055 | -finstrument-functions-exclude-file-list=filename,... Do not instrument functions listed in files | |
1056 | ||
d6e14e8f | 1057 | fipa-cp |
c662432e | 1058 | Common Report Var(flag_ipa_cp) Optimization |
d6e14e8f SB |
1059 | Perform Interprocedural constant propagation |
1060 | ||
5e45130d JH |
1061 | fipa-cp-clone |
1062 | Common Report Var(flag_ipa_cp_clone) Optimization | |
1063 | Perform cloning to make Interprocedural constant propagation stronger | |
1064 | ||
e65bb9be JH |
1065 | fipa-profile |
1066 | Common Report Var(flag_ipa_profile) Init(0) Optimization | |
1067 | Perform interprocedural profile propagation | |
ea900239 | 1068 | |
4cf4d6a3 | 1069 | fipa-pta |
c662432e | 1070 | Common Report Var(flag_ipa_pta) Init(0) Optimization |
4cf4d6a3 DB |
1071 | Perform interprocedural points-to analysis |
1072 | ||
e65bb9be JH |
1073 | fipa-pure-const |
1074 | Common Report Var(flag_ipa_pure_const) Init(0) Optimization | |
1075 | Discover pure and const functions | |
1076 | ||
ea900239 | 1077 | fipa-reference |
c662432e | 1078 | Common Report Var(flag_ipa_reference) Init(0) Optimization |
ea900239 DB |
1079 | Discover readonly and non addressable static variables |
1080 | ||
43d861a5 | 1081 | fipa-matrix-reorg |
6ae4be32 | 1082 | Common Report Var(flag_ipa_matrix_reorg) Optimization |
43d861a5 RL |
1083 | Perform matrix layout flattening and transposing based |
1084 | on profiling information. | |
1085 | ||
e1dc98b2 OG |
1086 | fipa-struct-reorg |
1087 | Common Report Var(flag_ipa_struct_reorg) | |
1088 | Perform structure layout optimizations based | |
1089 | on profiling information. | |
1090 | ||
058e97ec VM |
1091 | fira-algorithm= |
1092 | Common Joined RejectNegative | |
7db7ed3c VM |
1093 | -fira-algorithm=[CB|priority] Set the used IRA algorithm |
1094 | ||
1095 | fira-region= | |
1096 | Common Joined RejectNegative | |
1097 | -fira-region=[one|all|mixed] Set regions for IRA | |
058e97ec | 1098 | |
1833192f VM |
1099 | fira-loop-pressure |
1100 | Common Report Var(flag_ira_loop_pressure) | |
1101 | Use IRA based register pressure calculation | |
1102 | in RTL loop optimizations. | |
1103 | ||
058e97ec VM |
1104 | fira-share-save-slots |
1105 | Common Report Var(flag_ira_share_save_slots) Init(1) | |
1106 | Share slots for saving different hard registers. | |
1107 | ||
1108 | fira-share-spill-slots | |
1109 | Common Report Var(flag_ira_share_spill_slots) Init(1) | |
1110 | Share stack slots for spilled pseudo-registers. | |
1111 | ||
1112 | fira-verbose= | |
5498f011 | 1113 | Common RejectNegative Joined UInteger Var(flag_ira_verbose) Init(5) |
f94e1d66 | 1114 | -fira-verbose=<number> Control IRA's level of diagnostic messages. |
058e97ec | 1115 | |
8b11a64c | 1116 | fivopts |
c662432e | 1117 | Common Report Var(flag_ivopts) Init(1) Optimization |
8b11a64c ZD |
1118 | Optimize induction variables on trees |
1119 | ||
82c0180d | 1120 | fjump-tables |
c662432e | 1121 | Common Var(flag_jump_tables) Init(1) Optimization |
82c0180d JM |
1122 | Use jump tables for sufficiently large switch statements |
1123 | ||
de32c0cb | 1124 | fkeep-inline-functions |
50431bc4 | 1125 | Common Report Var(flag_keep_inline_functions) |
f3fdaec4 | 1126 | Generate code for functions even if they are fully inlined |
de32c0cb NB |
1127 | |
1128 | fkeep-static-consts | |
50431bc4 | 1129 | Common Report Var(flag_keep_static_consts) Init(1) |
f3fdaec4 | 1130 | Emit static const variables even if they are not used |
de32c0cb | 1131 | |
6ff3a151 | 1132 | fleading-underscore |
50431bc4 | 1133 | Common Report Var(flag_leading_underscore) Init(-1) |
f3fdaec4 | 1134 | Give external symbols a leading underscore |
6ff3a151 | 1135 | |
efa1cdf0 | 1136 | floop-optimize |
2d2bd949 | 1137 | Common Ignore |
c0220ea4 | 1138 | Does nothing. Preserved for backward compatibility. |
efa1cdf0 | 1139 | |
d7f09764 DN |
1140 | flto |
1141 | Common Var(flag_lto) | |
1142 | Enable link-time optimization. | |
1143 | ||
852e4bd2 JH |
1144 | flto-partition=1to1 |
1145 | Common Var(flag_lto_partition_1to1) | |
1146 | Partition functions and vars at linktime based on object files they originate from | |
1147 | ||
1148 | flto-partition=balanced | |
1149 | Common Var(flag_lto_partition_balanced) | |
1150 | Partition functions and vars at linktime into approximately same sized buckets | |
1151 | ||
d7f09764 DN |
1152 | ; The initial value of -1 comes from Z_DEFAULT_COMPRESSION in zlib.h. |
1153 | flto-compression-level= | |
fcfbd84e | 1154 | Common Joined RejectNegative UInteger Var(flag_lto_compression_level) Init(-1) |
f94e1d66 | 1155 | -flto-compression-level=<number> Use zlib compression level <number> for IL |
d7f09764 DN |
1156 | |
1157 | flto-report | |
1158 | Common Report Var(flag_lto_report) Init(0) Optimization | |
1159 | Report various link-time optimization statistics | |
1160 | ||
6ff3a151 | 1161 | fmath-errno |
ab442df7 | 1162 | Common Report Var(flag_errno_math) Init(1) Optimization |
f3fdaec4 | 1163 | Set errno after built-in math functions |
6ff3a151 NB |
1164 | |
1165 | fmem-report | |
50431bc4 | 1166 | Common Report Var(mem_report) |
f3fdaec4 | 1167 | Report on permanent memory allocation |
6ff3a151 | 1168 | |
31b66477 KC |
1169 | ; This will attempt to merge constant section constants, if 1 only |
1170 | ; string constants and constants from constant pool, if 2 also constant | |
1171 | ; variables. | |
6ff3a151 | 1172 | fmerge-all-constants |
c662432e | 1173 | Common Report Var(flag_merge_constants,2) Init(1) Optimization |
f3fdaec4 | 1174 | Attempt to merge identical constants and constant variables |
6ff3a151 NB |
1175 | |
1176 | fmerge-constants | |
f0036cca | 1177 | Common Report Var(flag_merge_constants,1) Optimization |
f3fdaec4 | 1178 | Attempt to merge identical constants across compilation units |
6ff3a151 | 1179 | |
28a08168 ILT |
1180 | fmerge-debug-strings |
1181 | Common Report Var(flag_merge_debug_strings) Init(1) | |
1182 | Attempt to merge identical debug strings across compilation units | |
1183 | ||
de32c0cb NB |
1184 | fmessage-length= |
1185 | Common RejectNegative Joined UInteger | |
cf03fd63 | 1186 | -fmessage-length=<number> Limit diagnostics to <number> characters per line. 0 suppresses line-wrapping |
de32c0cb | 1187 | |
e5626198 | 1188 | fmodulo-sched |
c662432e | 1189 | Common Report Var(flag_modulo_sched) Optimization |
e5626198 AZ |
1190 | Perform SMS based modulo scheduling before the first scheduling pass |
1191 | ||
517d76fa VY |
1192 | fmodulo-sched-allow-regmoves |
1193 | Common Report Var(flag_modulo_sched_allow_regmoves) | |
1194 | Perform SMS based modulo scheduling with register moves allowed | |
1195 | ||
5e962776 | 1196 | fmove-loop-invariants |
c662432e | 1197 | Common Report Var(flag_move_loop_invariants) Init(1) Optimization |
5e962776 ZD |
1198 | Move loop invariant computations out of loops |
1199 | ||
6de9cd9a | 1200 | fmudflap |
50431bc4 | 1201 | Common RejectNegative Report Var(flag_mudflap) |
c85ce869 | 1202 | Add mudflap bounds-checking instrumentation for single-threaded program |
6de9cd9a DN |
1203 | |
1204 | fmudflapth | |
f0036cca | 1205 | Common RejectNegative Report Var(flag_mudflap,2) |
c85ce869 | 1206 | Add mudflap bounds-checking instrumentation for multi-threaded program |
6de9cd9a DN |
1207 | |
1208 | fmudflapir | |
50431bc4 | 1209 | Common RejectNegative Report Var(flag_mudflap_ignore_reads) |
c85ce869 | 1210 | Ignore read operations when inserting mudflap instrumentation |
6de9cd9a | 1211 | |
6fb5fa3c | 1212 | fdce |
6ae4be32 | 1213 | Common Var(flag_dce) Init(1) Optimization |
6fb5fa3c DB |
1214 | Use the RTL dead code elimination pass |
1215 | ||
1216 | fdse | |
6ae4be32 | 1217 | Common Var(flag_dse) Init(1) Optimization |
6fb5fa3c DB |
1218 | Use the RTL dead store elimination pass |
1219 | ||
d72372e4 | 1220 | freschedule-modulo-scheduled-loops |
c662432e | 1221 | Common Report Var(flag_resched_modulo_sched) Optimization |
d72372e4 MH |
1222 | Enable/Disable the traditional scheduling in loops that already passed modulo scheduling |
1223 | ||
6ff3a151 | 1224 | fnon-call-exceptions |
c662432e | 1225 | Common Report Var(flag_non_call_exceptions) Optimization |
f3fdaec4 | 1226 | Support synchronous non-call exceptions |
6ff3a151 | 1227 | |
de32c0cb | 1228 | fomit-frame-pointer |
c662432e | 1229 | Common Report Var(flag_omit_frame_pointer) Optimization |
f3fdaec4 | 1230 | When possible do not generate stack frames |
de32c0cb | 1231 | |
6ff3a151 | 1232 | foptimize-register-move |
c662432e | 1233 | Common Report Var(flag_regmove) Optimization |
f3fdaec4 | 1234 | Do the full register move optimization pass |
6ff3a151 | 1235 | |
de32c0cb | 1236 | foptimize-sibling-calls |
c662432e | 1237 | Common Report Var(flag_optimize_sibling_calls) Optimization |
f3fdaec4 | 1238 | Optimize sibling and tail recursive calls |
de32c0cb | 1239 | |
3e485f62 JH |
1240 | fpartial-inlining |
1241 | Common Report Var(flag_partial_inlining) | |
1242 | Perform partial inlining | |
1243 | ||
a5573239 JH |
1244 | fpre-ipa-mem-report |
1245 | Common Report Var(pre_ipa_mem_report) | |
1246 | Report on memory allocation before interprocedural optimization | |
1247 | ||
1248 | fpost-ipa-mem-report | |
1249 | Common Report Var(post_ipa_mem_report) | |
1250 | Report on memory allocation before interprocedural optimization | |
1251 | ||
6ff3a151 | 1252 | fpack-struct |
c662432e | 1253 | Common Report Var(flag_pack_struct) Optimization |
f3fdaec4 | 1254 | Pack structure members together without holes |
6ff3a151 | 1255 | |
467cecf3 | 1256 | fpack-struct= |
c662432e | 1257 | Common RejectNegative Joined UInteger Optimization |
467cecf3 JB |
1258 | -fpack-struct=<number> Set initial maximum structure member alignment |
1259 | ||
de32c0cb | 1260 | fpcc-struct-return |
5498f011 | 1261 | Common Report Var(flag_pcc_struct_return,1) Init(DEFAULT_PCC_STRUCT_RETURN) |
f3fdaec4 | 1262 | Return small aggregates in memory, not registers |
de32c0cb NB |
1263 | |
1264 | fpeel-loops | |
c662432e | 1265 | Common Report Var(flag_peel_loops) Optimization |
f3fdaec4 | 1266 | Perform loop peeling |
de32c0cb NB |
1267 | |
1268 | fpeephole | |
c662432e | 1269 | Common Report Var(flag_no_peephole,0) Optimization |
f3fdaec4 | 1270 | Enable machine specific peephole optimizations |
de32c0cb | 1271 | |
6ff3a151 | 1272 | fpeephole2 |
c662432e | 1273 | Common Report Var(flag_peephole2) Optimization |
f3fdaec4 | 1274 | Enable an RTL peephole pass before sched2 |
6ff3a151 | 1275 | |
31b66477 KC |
1276 | fPIC |
1277 | Common Report Var(flag_pic,2) | |
1278 | Generate position-independent code if possible (large mode) | |
1279 | ||
1280 | fPIE | |
1281 | Common Report Var(flag_pie,2) | |
1282 | Generate position-independent code for executables if possible (large mode) | |
1283 | ||
6ff3a151 | 1284 | fpic |
f0036cca | 1285 | Common Report Var(flag_pic,1) |
31b66477 | 1286 | Generate position-independent code if possible (small mode) |
6ff3a151 NB |
1287 | |
1288 | fpie | |
f0036cca | 1289 | Common Report Var(flag_pie,1) |
31b66477 | 1290 | Generate position-independent code for executables if possible (small mode) |
6ff3a151 | 1291 | |
68a607d8 DN |
1292 | fplugin= |
1293 | Common Joined RejectNegative | |
1294 | Specify a plugin to load | |
1295 | ||
1296 | fplugin-arg- | |
1297 | Common Joined RejectNegative | |
f94e1d66 | 1298 | -fplugin-arg-<name>-<key>[=<value>] Specify argument <key>=<value> for plugin <name> |
68a607d8 | 1299 | |
bbc8a8dc | 1300 | fpredictive-commoning |
6ae4be32 | 1301 | Common Report Var(flag_predictive_commoning) Optimization |
bbc8a8dc ZD |
1302 | Run predictive commoning optimization. |
1303 | ||
de32c0cb | 1304 | fprefetch-loop-arrays |
1fbb509a | 1305 | Common Report Var(flag_prefetch_loop_arrays) Init(-1) Optimization |
f3fdaec4 | 1306 | Generate prefetch instructions, if available, for arrays in loops |
de32c0cb | 1307 | |
6ff3a151 | 1308 | fprofile |
50431bc4 | 1309 | Common Report Var(profile_flag) |
f3fdaec4 | 1310 | Enable basic program profiling code |
6ff3a151 NB |
1311 | |
1312 | fprofile-arcs | |
50431bc4 | 1313 | Common Report Var(profile_arc_flag) |
f3fdaec4 | 1314 | Insert arc-based program profiling code |
6ff3a151 | 1315 | |
2f908293 SP |
1316 | fprofile-dir= |
1317 | Common Joined RejectNegative | |
1318 | Set the top-level directory for storing the profile data. | |
1319 | The default is 'pwd'. | |
1320 | ||
52c76998 PY |
1321 | fprofile-correction |
1322 | Common Report Var(flag_profile_correction) | |
1323 | Enable correction of flow inconsistent profile data input | |
1324 | ||
a8a5f53a JH |
1325 | fprofile-generate |
1326 | Common | |
1327 | Enable common options for generating profile info for profile feedback directed optimizations | |
1328 | ||
2f908293 SP |
1329 | fprofile-generate= |
1330 | Common Joined RejectNegative | |
1331 | Enable common options for generating profile info for profile feedback directed optimizations, and set -fprofile-dir= | |
1332 | ||
a8a5f53a | 1333 | fprofile-use |
2f908293 | 1334 | Common Var(flag_profile_use) |
a8a5f53a JH |
1335 | Enable common options for performing profile feedback directed optimizations |
1336 | ||
2f908293 SP |
1337 | fprofile-use= |
1338 | Common Joined RejectNegative | |
1339 | Enable common options for performing profile feedback directed optimizations, and set -fprofile-dir= | |
1340 | ||
fca9dc00 | 1341 | fprofile-values |
50431bc4 | 1342 | Common Report Var(flag_profile_values) |
fca9dc00 ZD |
1343 | Insert code to profile values of expressions |
1344 | ||
de32c0cb NB |
1345 | frandom-seed |
1346 | Common | |
1347 | ||
1348 | frandom-seed= | |
1349 | Common Joined RejectNegative | |
cf03fd63 | 1350 | -frandom-seed=<string> Make compile reproducible using <string> |
de32c0cb | 1351 | |
e0d9d0dd NC |
1352 | ; This switch causes the command line that was used to create an |
1353 | ; object file to be recorded into the object file. The exact format | |
1354 | ; of this recording is target and binary file format dependent. | |
1355 | ; It is related to the -fverbose-asm switch, but that switch only | |
1356 | ; records information in the assembler output file as comments, so | |
1357 | ; they never reach the object file. | |
1358 | frecord-gcc-switches | |
1359 | Common Report Var(flag_record_gcc_switches) | |
1360 | Record gcc command line switches in the object file. | |
1361 | ||
de32c0cb | 1362 | freg-struct-return |
f0036cca | 1363 | Common Report Var(flag_pcc_struct_return,0) Optimization |
f3fdaec4 | 1364 | Return small aggregates in registers |
de32c0cb | 1365 | |
6ff3a151 | 1366 | fregmove |
c662432e | 1367 | Common Report Var(flag_regmove) Optimization |
f3fdaec4 | 1368 | Enables a register move optimization |
6ff3a151 NB |
1369 | |
1370 | frename-registers | |
c662432e | 1371 | Common Report Var(flag_rename_registers) Init(2) Optimization |
f3fdaec4 | 1372 | Perform a register renaming optimization pass |
6ff3a151 NB |
1373 | |
1374 | freorder-blocks | |
c662432e | 1375 | Common Report Var(flag_reorder_blocks) Optimization |
f3fdaec4 | 1376 | Reorder basic blocks to improve code placement |
6ff3a151 | 1377 | |
750054a2 | 1378 | freorder-blocks-and-partition |
c662432e | 1379 | Common Report Var(flag_reorder_blocks_and_partition) Optimization |
750054a2 CT |
1380 | Reorder basic blocks and partition into hot and cold sections |
1381 | ||
6ff3a151 | 1382 | freorder-functions |
c662432e | 1383 | Common Report Var(flag_reorder_functions) Optimization |
f3fdaec4 | 1384 | Reorder functions to improve code placement |
6ff3a151 | 1385 | |
de32c0cb | 1386 | frerun-cse-after-loop |
3020190e | 1387 | Common Report Var(flag_rerun_cse_after_loop) Optimization |
f3fdaec4 | 1388 | Add a common subexpression elimination pass after loop optimizations |
de32c0cb | 1389 | |
efa1cdf0 | 1390 | frerun-loop-opt |
2d2bd949 | 1391 | Common Ignore |
c0220ea4 | 1392 | Does nothing. Preserved for backward compatibility. |
efa1cdf0 | 1393 | |
039c3d42 | 1394 | frounding-math |
c662432e | 1395 | Common Report Var(flag_rounding_math) Optimization |
039c3d42 RS |
1396 | Disable optimizations that assume default FP rounding behavior |
1397 | ||
6ff3a151 | 1398 | fsched-interblock |
c662432e | 1399 | Common Report Var(flag_schedule_interblock) Init(1) Optimization |
f3fdaec4 | 1400 | Enable scheduling across basic blocks |
6ff3a151 | 1401 | |
ce18efcb VM |
1402 | fsched-pressure |
1403 | Common Report Var(flag_sched_pressure) Init(0) Optimization | |
1404 | Enable register pressure sensitive insn scheduling | |
1405 | ||
6ff3a151 | 1406 | fsched-spec |
c662432e | 1407 | Common Report Var(flag_schedule_speculative) Init(1) Optimization |
f3fdaec4 | 1408 | Allow speculative motion of non-loads |
6ff3a151 NB |
1409 | |
1410 | fsched-spec-load | |
c662432e | 1411 | Common Report Var(flag_schedule_speculative_load) Optimization |
f3fdaec4 | 1412 | Allow speculative motion of some loads |
6ff3a151 NB |
1413 | |
1414 | fsched-spec-load-dangerous | |
c662432e | 1415 | Common Report Var(flag_schedule_speculative_load_dangerous) Optimization |
f3fdaec4 | 1416 | Allow speculative motion of more loads |
6ff3a151 | 1417 | |
de32c0cb NB |
1418 | fsched-verbose= |
1419 | Common RejectNegative Joined | |
cf03fd63 | 1420 | -fsched-verbose=<number> Set the verbosity level of the scheduler |
de32c0cb | 1421 | |
6ff3a151 | 1422 | fsched2-use-superblocks |
c662432e | 1423 | Common Report Var(flag_sched2_use_superblocks) Optimization |
f3fdaec4 | 1424 | If scheduling post reload, do superblock scheduling |
6ff3a151 NB |
1425 | |
1426 | fsched2-use-traces | |
2d2bd949 | 1427 | Common Ignore |
57257f0d | 1428 | Does nothing. Preserved for backward compatibility. |
6ff3a151 | 1429 | |
de32c0cb | 1430 | fschedule-insns |
c662432e | 1431 | Common Report Var(flag_schedule_insns) Optimization |
f3fdaec4 | 1432 | Reschedule instructions before register allocation |
de32c0cb NB |
1433 | |
1434 | fschedule-insns2 | |
c662432e | 1435 | Common Report Var(flag_schedule_insns_after_reload) Optimization |
f3fdaec4 | 1436 | Reschedule instructions after register allocation |
de32c0cb | 1437 | |
e855c69d AB |
1438 | ; This flag should be on when a target implements non-trivial |
1439 | ; scheduling hooks, maybe saving some information for its own sake. | |
1440 | ; On IA64, for example, this is used for correct bundling. | |
1441 | fselective-scheduling | |
1442 | Common Report Var(flag_selective_scheduling) Optimization | |
1443 | Schedule instructions using selective scheduling algorithm | |
1444 | ||
1445 | fselective-scheduling2 | |
1446 | Common Report Var(flag_selective_scheduling2) Optimization | |
1447 | Run selective scheduling after reload | |
1448 | ||
1449 | fsel-sched-pipelining | |
1450 | Common Report Var(flag_sel_sched_pipelining) Init(0) Optimization | |
1451 | Perform software pipelining of inner loops during selective scheduling | |
1452 | ||
1453 | fsel-sched-pipelining-outer-loops | |
1454 | Common Report Var(flag_sel_sched_pipelining_outer_loops) Init(0) Optimization | |
1455 | Perform software pipelining of outer loops during selective scheduling | |
1456 | ||
1457 | fsel-sched-reschedule-pipelined | |
1458 | Common Report Var(flag_sel_sched_reschedule_pipelined) Init(0) Optimization | |
1459 | Reschedule pipelined regions without pipelining | |
1460 | ||
31b66477 KC |
1461 | ; sched_stalled_insns means that insns can be moved prematurely from the queue |
1462 | ; of stalled insns into the ready list. | |
569fa502 | 1463 | fsched-stalled-insns |
ab442df7 | 1464 | Common Report Var(flag_sched_stalled_insns) Optimization UInteger |
569fa502 DN |
1465 | Allow premature scheduling of queued insns |
1466 | ||
1467 | fsched-stalled-insns= | |
c22cacf3 | 1468 | Common RejectNegative Joined UInteger |
4e994432 | 1469 | -fsched-stalled-insns=<number> Set number of queued insns that can be prematurely scheduled |
569fa502 | 1470 | |
31b66477 KC |
1471 | ; sched_stalled_insns_dep controls how many recently scheduled cycles will |
1472 | ; be examined for a dependency on a stalled insn that is candidate for | |
1473 | ; premature removal from the queue of stalled insns into the ready list (has | |
1474 | ; an effect only if the flag 'sched_stalled_insns' is set). | |
569fa502 | 1475 | fsched-stalled-insns-dep |
ab442df7 | 1476 | Common Report Var(flag_sched_stalled_insns_dep,1) Init(1) Optimization UInteger |
569fa502 DN |
1477 | Set dependence distance checking in premature scheduling of queued insns |
1478 | ||
1479 | fsched-stalled-insns-dep= | |
1480 | Common RejectNegative Joined UInteger | |
4e994432 | 1481 | -fsched-stalled-insns-dep=<number> Set dependence distance checking in premature scheduling of queued insns |
569fa502 | 1482 | |
ee4764a8 GS |
1483 | fsched-group-heuristic |
1484 | Common Report Var(flag_sched_group_heuristic) Init(1) Optimization | |
1485 | Enable the group heuristic in the scheduler | |
1486 | ||
1487 | fsched-critical-path-heuristic | |
1488 | Common Report Var(flag_sched_critical_path_heuristic) Init(1) Optimization | |
1489 | Enable the critical path heuristic in the scheduler | |
1490 | ||
1491 | fsched-spec-insn-heuristic | |
1492 | Common Report Var(flag_sched_spec_insn_heuristic) Init(1) Optimization | |
1493 | Enable the speculative instruction heuristic in the scheduler | |
1494 | ||
ee4764a8 GS |
1495 | fsched-rank-heuristic |
1496 | Common Report Var(flag_sched_rank_heuristic) Init(1) Optimization | |
1497 | Enable the rank heuristic in the scheduler | |
1498 | ||
1499 | fsched-last-insn-heuristic | |
1500 | Common Report Var(flag_sched_last_insn_heuristic) Init(1) Optimization | |
1501 | Enable the last instruction heuristic in the scheduler | |
1502 | ||
1503 | fsched-dep-count-heuristic | |
1504 | Common Report Var(flag_sched_dep_count_heuristic) Init(1) Optimization | |
1505 | Enable the dependent count heuristic in the scheduler | |
1506 | ||
aacd3885 | 1507 | fsection-anchors |
c662432e | 1508 | Common Report Var(flag_section_anchors) Optimization |
aacd3885 RS |
1509 | Access data in the same section from shared anchor points |
1510 | ||
8cd37d0b | 1511 | fsee |
2d2bd949 | 1512 | Common Ignore |
8393a9c8 | 1513 | Does nothing. Preserved for backward compatibility. |
8cd37d0b | 1514 | |
87a0ebfd ST |
1515 | fzee |
1516 | Common Report Var(flag_zee) Init(0) | |
1517 | Eliminate redundant zero extensions on targets that support implicit extensions. | |
1518 | ||
8abb6b22 | 1519 | fshow-column |
1cb42611 | 1520 | Common Report Var(flag_show_column) Init(1) |
e74fe492 | 1521 | Show column numbers in diagnostics, when available. Default on |
8abb6b22 | 1522 | |
6ff3a151 | 1523 | fsignaling-nans |
c662432e | 1524 | Common Report Var(flag_signaling_nans) Optimization |
f3fdaec4 | 1525 | Disable optimizations observable by IEEE signaling NaNs |
6ff3a151 | 1526 | |
db02da79 | 1527 | fsigned-zeros |
21af5cdf | 1528 | Common Report Var(flag_signed_zeros) Init(1) Optimization |
db02da79 RS |
1529 | Disable floating point optimizations that ignore the IEEE signedness of zero |
1530 | ||
6ff3a151 | 1531 | fsingle-precision-constant |
c662432e | 1532 | Common Report Var(flag_single_precision_constant) Optimization |
f3fdaec4 | 1533 | Convert floating point constants to single precision constants |
6ff3a151 | 1534 | |
113d659a | 1535 | fsplit-ivs-in-unroller |
c662432e | 1536 | Common Report Var(flag_split_ivs_in_unroller) Init(1) Optimization |
c85ce869 | 1537 | Split lifetimes of induction variables when loops are unrolled |
113d659a | 1538 | |
7458026b ILT |
1539 | fsplit-stack |
1540 | Common Report Var(flag_split_stack) Init(-1) | |
1541 | Generate discontiguous stack frames | |
1542 | ||
e53a16e7 | 1543 | fsplit-wide-types |
21af5cdf | 1544 | Common Report Var(flag_split_wide_types) Optimization |
e53a16e7 ILT |
1545 | Split wide types into independent registers |
1546 | ||
f37a4f14 | 1547 | fvariable-expansion-in-unroller |
c662432e | 1548 | Common Report Var(flag_variable_expansion_in_unroller) Optimization |
c85ce869 | 1549 | Apply variable expansion when loops are unrolled |
f37a4f14 | 1550 | |
b38f3813 EB |
1551 | fstack-check= |
1552 | Common Report RejectNegative Joined | |
1553 | -fstack-check=[no|generic|specific] Insert stack checking code into the program | |
1554 | ||
6ff3a151 | 1555 | fstack-check |
5de8299c | 1556 | Common Alias(fstack-check=, specific, no) |
b38f3813 | 1557 | Insert stack checking code into the program. Same as -fstack-check=specific |
6ff3a151 | 1558 | |
de32c0cb NB |
1559 | fstack-limit |
1560 | Common | |
1561 | ||
058de654 NB |
1562 | fstack-limit-register= |
1563 | Common RejectNegative Joined | |
cf03fd63 | 1564 | -fstack-limit-register=<register> Trap if the stack goes past <register> |
058de654 NB |
1565 | |
1566 | fstack-limit-symbol= | |
1567 | Common RejectNegative Joined | |
cf03fd63 | 1568 | -fstack-limit-symbol=<name> Trap if the stack goes past symbol <name> |
058de654 | 1569 | |
7d69de61 RH |
1570 | fstack-protector |
1571 | Common Report Var(flag_stack_protect, 1) | |
1572 | Use propolice as a stack protection method | |
1573 | ||
1574 | fstack-protector-all | |
f0036cca | 1575 | Common Report RejectNegative Var(flag_stack_protect, 2) |
7d69de61 RH |
1576 | Use a stack protection method for every function |
1577 | ||
d3c12306 EB |
1578 | fstack-usage |
1579 | Common RejectNegative Var(flag_stack_usage) | |
1580 | Output stack usage information on a per-function basis | |
1581 | ||
de32c0cb | 1582 | fstrength-reduce |
2d2bd949 | 1583 | Common Ignore |
c0220ea4 | 1584 | Does nothing. Preserved for backward compatibility. |
de32c0cb | 1585 | |
31b66477 KC |
1586 | ; Nonzero if we should do (language-dependent) alias analysis. |
1587 | ; Typically, this analysis will assume that expressions of certain | |
1588 | ; types do not alias expressions of certain other types. Only used | |
1589 | ; if alias analysis (in general) is enabled. | |
6ff3a151 | 1590 | fstrict-aliasing |
c662432e | 1591 | Common Report Var(flag_strict_aliasing) Optimization |
f3fdaec4 | 1592 | Assume strict aliasing rules apply |
6ff3a151 | 1593 | |
eeef0e45 ILT |
1594 | fstrict-overflow |
1595 | Common Report Var(flag_strict_overflow) | |
1596 | Treat signed overflow as undefined | |
1597 | ||
de32c0cb | 1598 | fsyntax-only |
50431bc4 | 1599 | Common Report Var(flag_syntax_only) |
f3fdaec4 | 1600 | Check for syntax errors, then stop |
de32c0cb | 1601 | |
6ff3a151 | 1602 | ftest-coverage |
50431bc4 | 1603 | Common Report Var(flag_test_coverage) |
f3fdaec4 | 1604 | Create data files needed by \"gcov\" |
6ff3a151 | 1605 | |
de32c0cb | 1606 | fthread-jumps |
c662432e | 1607 | Common Report Var(flag_thread_jumps) Optimization |
f3fdaec4 | 1608 | Perform jump threading optimizations |
de32c0cb | 1609 | |
6ff3a151 | 1610 | ftime-report |
50431bc4 | 1611 | Common Report Var(time_report) |
f3fdaec4 | 1612 | Report the time taken by each compiler pass |
6ff3a151 | 1613 | |
058de654 NB |
1614 | ftls-model= |
1615 | Common Joined RejectNegative | |
cf03fd63 | 1616 | -ftls-model=[global-dynamic|local-dynamic|initial-exec|local-exec] Set the default thread-local storage code generation model |
058de654 | 1617 | |
474eccc6 | 1618 | ftoplevel-reorder |
d6cc6ec9 | 1619 | Common Report Var(flag_toplevel_reorder) Init(2) Optimization |
474eccc6 ILT |
1620 | Reorder top level functions, variables, and asms |
1621 | ||
de32c0cb | 1622 | ftracer |
50431bc4 | 1623 | Common Report Var(flag_tracer) |
f3fdaec4 | 1624 | Perform superblock formation via tail duplication |
de32c0cb | 1625 | |
31b66477 KC |
1626 | ; Zero means that floating-point math operations cannot generate a |
1627 | ; (user-visible) trap. This is the case, for example, in nonstop | |
1628 | ; IEEE 754 arithmetic. | |
6ff3a151 | 1629 | ftrapping-math |
c662432e | 1630 | Common Report Var(flag_trapping_math) Init(1) Optimization |
f3fdaec4 | 1631 | Assume floating-point operations can trap |
6ff3a151 NB |
1632 | |
1633 | ftrapv | |
c662432e | 1634 | Common Report Var(flag_trapv) Optimization |
f3fdaec4 | 1635 | Trap for signed overflow in addition, subtraction and multiplication |
6ff3a151 | 1636 | |
6de9cd9a | 1637 | ftree-ccp |
c662432e | 1638 | Common Report Var(flag_tree_ccp) Optimization |
6de9cd9a DN |
1639 | Enable SSA-CCP optimization on trees |
1640 | ||
0b4b14ac RG |
1641 | ftree-bit-ccp |
1642 | Common Report Var(flag_tree_bit_ccp) Optimization | |
1643 | Enable SSA-BIT-CCP optimization on trees | |
1644 | ||
0bca51f0 | 1645 | ftree-store-ccp |
2d2bd949 | 1646 | Common Ignore |
dce2b2f6 | 1647 | Does nothing. Preserved for backward compatibility. |
0bca51f0 | 1648 | |
6de9cd9a | 1649 | ftree-ch |
c662432e | 1650 | Common Report Var(flag_tree_ch) Optimization |
6de9cd9a DN |
1651 | Enable loop header copying on trees |
1652 | ||
6de9cd9a | 1653 | ftree-copyrename |
c662432e | 1654 | Common Report Var(flag_tree_copyrename) Optimization |
c85ce869 | 1655 | Replace SSA temporaries with better names in copies |
6de9cd9a | 1656 | |
0bca51f0 | 1657 | ftree-copy-prop |
c662432e | 1658 | Common Report Var(flag_tree_copy_prop) Optimization |
0bca51f0 DN |
1659 | Enable copy propagation on trees |
1660 | ||
1661 | ftree-store-copy-prop | |
2d2bd949 | 1662 | Common Ignore |
e9033855 | 1663 | Does nothing. Preserved for backward compatibility. |
0bca51f0 | 1664 | |
a5828d1e MM |
1665 | ftree-cselim |
1666 | Common Report Var(flag_tree_cselim) Init(2) Optimization | |
1667 | Transform condition stores into unconditional ones | |
1668 | ||
b6e99746 MJ |
1669 | ftree-switch-conversion |
1670 | Common Report Var(flag_tree_switch_conversion) Optimization | |
1671 | Perform conversions of switch initializations. | |
1672 | ||
6de9cd9a | 1673 | ftree-dce |
c662432e | 1674 | Common Report Var(flag_tree_dce) Optimization |
6de9cd9a DN |
1675 | Enable SSA dead code elimination optimization on trees |
1676 | ||
1677 | ftree-dominator-opts | |
c662432e | 1678 | Common Report Var(flag_tree_dom) Optimization |
6de9cd9a DN |
1679 | Enable dominator optimizations |
1680 | ||
1681 | ftree-dse | |
c662432e | 1682 | Common Report Var(flag_tree_dse) Optimization |
6de9cd9a DN |
1683 | Enable dead store elimination |
1684 | ||
248fc9f3 RG |
1685 | ftree-forwprop |
1686 | Common Report Var(flag_tree_forwprop) Init(1) Optimization | |
1687 | Enable forward propagation on trees | |
1688 | ||
ff2ad0f7 | 1689 | ftree-fre |
c662432e | 1690 | Common Report Var(flag_tree_fre) Optimization |
ff2ad0f7 DN |
1691 | Enable Full Redundancy Elimination (FRE) on trees |
1692 | ||
dea61d92 | 1693 | ftree-loop-distribution |
53ed2f0e | 1694 | Common Report Var(flag_tree_loop_distribution) Optimization |
dea61d92 SP |
1695 | Enable loop distribution on trees |
1696 | ||
20769d5e SP |
1697 | ftree-loop-distribute-patterns |
1698 | Common Report Var(flag_tree_loop_distribute_patterns) Optimization | |
1699 | Enable loop distribution for patterns transformed into a library call | |
1700 | ||
1b08d87d | 1701 | ftree-loop-im |
c662432e | 1702 | Common Report Var(flag_tree_loop_im) Init(1) Optimization |
a7e5372d ZD |
1703 | Enable loop invariant motion on trees |
1704 | ||
599eabdb | 1705 | ftree-loop-linear |
c662432e | 1706 | Common Report Var(flag_tree_loop_linear) Optimization |
599eabdb DB |
1707 | Enable linear loop transforms on trees |
1708 | ||
1b08d87d | 1709 | ftree-loop-ivcanon |
c662432e | 1710 | Common Report Var(flag_tree_loop_ivcanon) Init(1) Optimization |
1b08d87d DB |
1711 | Create canonical induction variables in loops |
1712 | ||
c66b6c66 | 1713 | ftree-loop-optimize |
c662432e | 1714 | Common Report Var(flag_tree_loop_optimize) Init(1) Optimization |
c66b6c66 ZD |
1715 | Enable loop optimizations on tree level |
1716 | ||
5f40b3cb | 1717 | ftree-parallelize-loops= |
fcfbd84e | 1718 | Common Report Joined RejectNegative UInteger Var(flag_tree_parallelize_loops) Init(1) |
5f40b3cb ZD |
1719 | Enable automatic parallelization of loops |
1720 | ||
248fc9f3 RG |
1721 | ftree-phiprop |
1722 | Common Report Var(flag_tree_phiprop) Init(1) Optimization | |
1723 | Enable hoisting loads from conditional pointers. | |
1724 | ||
6de9cd9a | 1725 | ftree-pre |
c662432e | 1726 | Common Report Var(flag_tree_pre) Optimization |
6de9cd9a DN |
1727 | Enable SSA-PRE optimization on trees |
1728 | ||
248fc9f3 RG |
1729 | ftree-pta |
1730 | Common Report Var(flag_tree_pta) Init(1) Optimization | |
1731 | Perform function-local points-to analysis on trees. | |
1732 | ||
13c59415 UB |
1733 | ftree-reassoc |
1734 | Common Report Var(flag_tree_reassoc) Init(1) Optimization | |
1735 | Enable reassociation on tree level | |
1736 | ||
c75ab022 | 1737 | ftree-salias |
2d2bd949 | 1738 | Common Ignore |
1353232d | 1739 | Does nothing. Preserved for backward compatibility. |
c75ab022 | 1740 | |
fa555252 | 1741 | ftree-sink |
c662432e | 1742 | Common Report Var(flag_tree_sink) Optimization |
fa555252 DB |
1743 | Enable SSA code sinking on trees |
1744 | ||
6de9cd9a | 1745 | ftree-sra |
c662432e | 1746 | Common Report Var(flag_tree_sra) Optimization |
6de9cd9a DN |
1747 | Perform scalar replacement of aggregates |
1748 | ||
1749 | ftree-ter | |
3020190e | 1750 | Common Report Var(flag_tree_ter) Optimization |
6de9cd9a DN |
1751 | Replace temporary expressions in the SSA->normal pass |
1752 | ||
c662432e NC |
1753 | ftree-lrs |
1754 | Common Report Var(flag_tree_live_range_split) Optimization | |
1755 | Perform live range splitting during the SSA->normal pass | |
1756 | ||
0bca51f0 | 1757 | ftree-vrp |
c662432e | 1758 | Common Report Var(flag_tree_vrp) Init(0) Optimization |
0bca51f0 DN |
1759 | Perform Value Range Propagation on trees |
1760 | ||
de32c0cb | 1761 | funit-at-a-time |
d6cc6ec9 | 1762 | Common Report Var(flag_unit_at_a_time) Init(1) Optimization |
f3fdaec4 | 1763 | Compile whole compilation unit at a time |
de32c0cb NB |
1764 | |
1765 | funroll-loops | |
c662432e | 1766 | Common Report Var(flag_unroll_loops) Optimization |
f3fdaec4 | 1767 | Perform loop unrolling when iteration count is known |
de32c0cb NB |
1768 | |
1769 | funroll-all-loops | |
c662432e | 1770 | Common Report Var(flag_unroll_all_loops) Optimization |
f3fdaec4 | 1771 | Perform loop unrolling for all loops |
de32c0cb | 1772 | |
f9cc1a70 PB |
1773 | ; Nonzero means that loop optimizer may assume that the induction variables |
1774 | ; that control loops do not overflow and that the loops with nontrivial | |
1775 | ; exit condition are not infinite | |
1776 | funsafe-loop-optimizations | |
c662432e | 1777 | Common Report Var(flag_unsafe_loop_optimizations) Optimization |
f9cc1a70 PB |
1778 | Allow loop optimizations to assume that the loops behave in normal way |
1779 | ||
a1a82611 RE |
1780 | fassociative-math |
1781 | Common Report Var(flag_associative_math) | |
1782 | Allow optimization for floating-point arithmetic which may change the | |
1783 | result of the operation due to rounding. | |
1784 | ||
1785 | freciprocal-math | |
1786 | Common Report Var(flag_reciprocal_math) | |
1787 | Same as -fassociative-math for expressions which include division. | |
1788 | ||
31b66477 KC |
1789 | ; Nonzero means that unsafe floating-point math optimizations are allowed |
1790 | ; for the sake of speed. IEEE compliance is not guaranteed, and operations | |
1791 | ; are allowed to assume that their arguments and results are "normal" | |
1792 | ; (e.g., nonnegative for SQRT). | |
6ff3a151 | 1793 | funsafe-math-optimizations |
c662432e | 1794 | Common Report Var(flag_unsafe_math_optimizations) Optimization |
f3fdaec4 | 1795 | Allow math optimizations that may violate IEEE or ISO standards |
6ff3a151 | 1796 | |
de32c0cb | 1797 | funswitch-loops |
c662432e | 1798 | Common Report Var(flag_unswitch_loops) Optimization |
f3fdaec4 | 1799 | Perform loop unswitching |
de32c0cb | 1800 | |
6ff3a151 | 1801 | funwind-tables |
c662432e | 1802 | Common Report Var(flag_unwind_tables) Optimization |
f3fdaec4 | 1803 | Just generate unwind tables for exception handling |
6ff3a151 | 1804 | |
da18ea94 RAE |
1805 | fuse-linker-plugin |
1806 | Common Undocumented | |
1807 | ||
e90afde6 JM |
1808 | ; Positive if we should track variables, negative if we should run |
1809 | ; the var-tracking pass only to discard debug annotations, zero if | |
1810 | ; we're not to run it. When flag_var_tracking == 2 (AUTODETECT_VALUE) it | |
1811 | ; will be set according to optimize, debug_info_level and debug_hooks | |
1812 | ; in process_options (). | |
014a1138 | 1813 | fvar-tracking |
e90afde6 | 1814 | Common Report Var(flag_var_tracking) Init(2) Optimization |
014a1138 JZ |
1815 | Perform variable tracking |
1816 | ||
e90afde6 JM |
1817 | ; Positive if we should track variables at assignments, negative if |
1818 | ; we should run the var-tracking pass only to discard debug | |
1819 | ; annotations. When flag_var_tracking_assignments == | |
1820 | ; AUTODETECT_VALUE it will be set according to flag_var_tracking. | |
b5b8b0ac | 1821 | fvar-tracking-assignments |
e90afde6 | 1822 | Common Report Var(flag_var_tracking_assignments) Init(2) Optimization |
b5b8b0ac AO |
1823 | Perform variable tracking by annotating assignments |
1824 | ||
e90afde6 JM |
1825 | ; Nonzero if we should toggle flag_var_tracking_assignments after |
1826 | ; processing options and computing its default. */ | |
b5b8b0ac | 1827 | fvar-tracking-assignments-toggle |
e90afde6 | 1828 | Common Report Var(flag_var_tracking_assignments_toggle) Optimization |
b5b8b0ac AO |
1829 | Toggle -fvar-tracking-assignments |
1830 | ||
62760ffd CT |
1831 | fvar-tracking-uninit |
1832 | Common Report Var(flag_var_tracking_uninit) Optimization | |
1833 | Perform variable tracking and also tag variables that are uninitialized | |
1834 | ||
79fe1b3b | 1835 | ftree-vectorize |
c662432e | 1836 | Common Report Var(flag_tree_vectorize) Optimization |
79fe1b3b DN |
1837 | Enable loop vectorization on trees |
1838 | ||
a70d6342 IR |
1839 | ftree-slp-vectorize |
1840 | Common Report Var(flag_tree_slp_vectorize) Init(2) Optimization | |
1841 | Enable basic block vectorization (SLP) on trees | |
1842 | ||
792ed98b HJ |
1843 | fvect-cost-model |
1844 | Common Report Var(flag_vect_cost_model) Optimization | |
1845 | Enable use of cost model in vectorization | |
1846 | ||
c12cc930 | 1847 | ftree-vect-loop-version |
c662432e | 1848 | Common Report Var(flag_tree_vect_loop_version) Init(1) Optimization |
c12cc930 KB |
1849 | Enable loop versioning when doing loop vectorization on trees |
1850 | ||
c866976a LB |
1851 | ftree-vectorizer-verbose= |
1852 | Common RejectNegative Joined | |
4e994432 | 1853 | -ftree-vectorizer-verbose=<number> Set the verbosity level of the vectorizer |
c866976a | 1854 | |
fbf798fc | 1855 | ftree-scev-cprop |
21af5cdf | 1856 | Common Report Var(flag_tree_scev_cprop) Init(1) Optimization |
fbf798fc DN |
1857 | Enable copy propagation of scalar-evolution information. |
1858 | ||
31b66477 KC |
1859 | ; -fverbose-asm causes extra commentary information to be produced in |
1860 | ; the generated assembly code (to make it more readable). This option | |
1861 | ; is generally only of use to those who actually need to read the | |
1862 | ; generated assembly code (perhaps while debugging the compiler itself). | |
1863 | ; -fno-verbose-asm, the default, causes the extra information | |
1864 | ; to not be added and is useful when comparing two assembler files. | |
6ff3a151 | 1865 | fverbose-asm |
50431bc4 | 1866 | Common Report Var(flag_verbose_asm) |
f3fdaec4 | 1867 | Add extra commentary to assembler output |
6ff3a151 | 1868 | |
d7afec4b ND |
1869 | fvisibility= |
1870 | Common Joined RejectNegative | |
1871 | -fvisibility=[default|internal|hidden|protected] Set the default symbol visibility | |
1872 | ||
1873 | ||
fca9dc00 | 1874 | fvpt |
c662432e | 1875 | Common Report Var(flag_value_profile_transformations) Optimization |
fca9dc00 ZD |
1876 | Use expression value profiles in optimizations |
1877 | ||
62551c66 | 1878 | fweb |
c662432e | 1879 | Common Report Var(flag_web) Init(2) Optimization |
62551c66 JH |
1880 | Construct webs and split unrelated uses of single variable |
1881 | ||
d7f09764 | 1882 | fwhopr |
c04b6b38 RG |
1883 | Common |
1884 | Enable partitioned link-time optimization | |
1885 | ||
1886 | fwhopr= | |
a478ffff AK |
1887 | Common RejectNegative Joined Var(flag_whopr) |
1888 | Partitioned link-time optimization with number of parallel jobs or jobserver. | |
d7f09764 | 1889 | |
c2699190 XDL |
1890 | ftree-builtin-call-dce |
1891 | Common Report Var(flag_tree_builtin_call_dce) Init(0) Optimization | |
1892 | Enable conditional dead code elimination for builtin calls | |
1893 | ||
ce91e74c | 1894 | fwhole-program |
c662432e | 1895 | Common Report Var(flag_whole_program) Init(0) Optimization |
ce91e74c JH |
1896 | Perform whole program optimizations |
1897 | ||
6ff3a151 | 1898 | fwrapv |
c662432e | 1899 | Common Report Var(flag_wrapv) Optimization |
f3fdaec4 | 1900 | Assume signed arithmetic overflow wraps around |
6ff3a151 | 1901 | |
6ff3a151 | 1902 | fzero-initialized-in-bss |
50431bc4 | 1903 | Common Report Var(flag_zero_initialized_in_bss) Init(1) |
f3fdaec4 | 1904 | Put zero initialized data in the bss section |
6ff3a151 | 1905 | |
e01cc6dc NB |
1906 | g |
1907 | Common JoinedOrMissing | |
df38ffef NB |
1908 | Generate debug information in default format |
1909 | ||
1910 | gcoff | |
53b2323e | 1911 | Common JoinedOrMissing Negative(gdwarf-) |
df38ffef NB |
1912 | Generate debug information in COFF format |
1913 | ||
53b2323e RH |
1914 | gdwarf- |
1915 | Common Joined UInteger Var(dwarf_version) Init(2) Negative(gstabs) | |
1916 | Generate debug information in DWARF v2 (or later) format | |
df38ffef NB |
1917 | |
1918 | ggdb | |
1919 | Common JoinedOrMissing | |
1920 | Generate debug information in default extended format | |
1921 | ||
1922 | gstabs | |
14c7833c | 1923 | Common JoinedOrMissing Negative(gstabs+) |
df38ffef NB |
1924 | Generate debug information in STABS format |
1925 | ||
1926 | gstabs+ | |
14c7833c | 1927 | Common JoinedOrMissing Negative(gvms) |
df38ffef NB |
1928 | Generate debug information in extended STABS format |
1929 | ||
65f753a0 | 1930 | gno-strict-dwarf |
047a3193 | 1931 | Common RejectNegative Var(dwarf_strict,0) Init(-1) |
65f753a0 JJ |
1932 | Emit DWARF additions beyond selected version |
1933 | ||
1934 | gstrict-dwarf | |
f0036cca | 1935 | Common Report RejectNegative Var(dwarf_strict,1) |
65f753a0 JJ |
1936 | Don't emit DWARF additions beyond selected version |
1937 | ||
2153915d AO |
1938 | gtoggle |
1939 | Common Report Var(flag_gtoggle) | |
1940 | Toggle debug information generation | |
1941 | ||
df38ffef | 1942 | gvms |
14c7833c | 1943 | Common JoinedOrMissing Negative(gxcoff) |
df38ffef NB |
1944 | Generate debug information in VMS format |
1945 | ||
1946 | gxcoff | |
14c7833c | 1947 | Common JoinedOrMissing Negative(gxcoff+) |
df38ffef NB |
1948 | Generate debug information in XCOFF format |
1949 | ||
1950 | gxcoff+ | |
14c7833c | 1951 | Common JoinedOrMissing Negative(gcoff) |
df38ffef | 1952 | Generate debug information in extended XCOFF format |
e01cc6dc | 1953 | |
6d721f67 JM |
1954 | h |
1955 | Driver Joined Separate | |
1956 | ||
4adbd5dd MK |
1957 | iplugindir= |
1958 | Common Joined Var(plugindir_string) Init(0) | |
1959 | -iplugindir=<dir> Set <dir> to be the default plugin directory | |
1960 | ||
603349bf JM |
1961 | l |
1962 | Driver Joined Separate | |
1963 | ||
1964 | no-canonical-prefixes | |
1965 | Driver | |
1966 | ||
d9d16a19 JM |
1967 | nodefaultlibs |
1968 | Driver | |
1969 | ||
1970 | nostdlib | |
1971 | Driver | |
1972 | ||
d185d268 | 1973 | o |
d5478783 | 1974 | Common Driver Joined Separate Var(asm_file_name) MissingArgError(missing filename after %qs) |
cf03fd63 | 1975 | -o <file> Place output into <file> |
d185d268 NB |
1976 | |
1977 | p | |
50431bc4 | 1978 | Common Var(profile_flag) |
cf03fd63 | 1979 | Enable function profiling |
d185d268 | 1980 | |
603349bf JM |
1981 | pass-exit-codes |
1982 | Driver Var(pass_exit_codes) | |
1983 | ||
d185d268 | 1984 | pedantic |
50431bc4 | 1985 | Common Var(pedantic) |
cf03fd63 | 1986 | Issue warnings needed for strict compliance to the standard |
d185d268 NB |
1987 | |
1988 | pedantic-errors | |
d5478783 | 1989 | Common Var(flag_pedantic_errors) |
cf03fd63 | 1990 | Like -pedantic but issue them as errors |
d185d268 | 1991 | |
d9d16a19 JM |
1992 | pg |
1993 | Driver | |
1994 | ||
603349bf JM |
1995 | pipe |
1996 | Driver Var(use_pipes) | |
1997 | ||
1998 | print-file-name= | |
1999 | Driver JoinedOrMissing Var(print_file_name) | |
2000 | ||
2001 | print-libgcc-file-name | |
2002 | Driver | |
2003 | ||
2004 | print-multi-directory | |
2005 | Driver Var(print_multi_directory) | |
2006 | ||
2007 | print-multi-lib | |
2008 | Driver Var(print_multi_lib) | |
2009 | ||
2010 | print-multi-os-directory | |
2011 | Driver Var(print_multi_os_directory) | |
2012 | ||
2013 | print-prog-name= | |
2014 | Driver JoinedOrMissing Var(print_prog_name) | |
2015 | ||
2016 | print-search-dirs | |
2017 | Driver Var(print_search_dirs) | |
2018 | ||
2019 | print-sysroot | |
2020 | Driver Var(print_sysroot) | |
2021 | ||
2022 | print-sysroot-headers-suffix | |
2023 | Driver Var(print_sysroot_headers_suffix) | |
2024 | ||
d7b42618 | 2025 | quiet |
603349bf | 2026 | Common Var(quiet_flag) RejectDriver |
cf03fd63 | 2027 | Do not display functions compiled or elapsed time |
d7b42618 | 2028 | |
603349bf JM |
2029 | save-temps |
2030 | Driver | |
2031 | ||
2032 | save-temps= | |
2033 | Driver Joined | |
2034 | ||
2035 | time | |
2036 | Driver Var(report_times) | |
2037 | ||
2038 | time= | |
2039 | Driver JoinedOrMissing | |
2040 | ||
e200444e JM |
2041 | u |
2042 | Driver Joined Separate | |
2043 | ||
5642f5d5 JM |
2044 | undef |
2045 | Driver | |
2046 | ; C option, but driver must not handle as "-u ndef". | |
2047 | ||
603349bf | 2048 | v |
d5478783 JM |
2049 | Common Driver Var(verbose_flag) |
2050 | Enable verbose output | |
603349bf | 2051 | |
d185d268 | 2052 | version |
603349bf | 2053 | Common Var(version_flag) RejectDriver |
cf03fd63 | 2054 | Display the compiler's version |
d185d268 NB |
2055 | |
2056 | w | |
50431bc4 | 2057 | Common Var(inhibit_warnings) |
cf03fd63 | 2058 | Suppress warnings |
d185d268 | 2059 | |
603349bf JM |
2060 | wrapper |
2061 | Driver Separate Var(wrapper_string) | |
2062 | ||
2063 | x | |
2064 | Driver Joined Separate | |
2065 | ||
528dc603 L |
2066 | shared |
2067 | Common RejectNegative Negative(pie) | |
2068 | Create a shared library | |
2069 | ||
603349bf JM |
2070 | shared-libgcc |
2071 | Driver | |
2072 | ||
2073 | specs | |
5de8299c | 2074 | Driver Separate Alias(specs=) |
603349bf JM |
2075 | |
2076 | specs= | |
2077 | Driver Joined | |
2078 | ||
d9d16a19 JM |
2079 | static |
2080 | Driver | |
2081 | ||
603349bf JM |
2082 | static-libgcc |
2083 | Driver | |
2084 | ||
2085 | static-libgfortran | |
2086 | Driver | |
2087 | ; Documented for Fortran, but always accepted by driver. | |
2088 | ||
2089 | static-libstdc++ | |
2090 | Driver | |
2091 | ||
e200444e JM |
2092 | symbolic |
2093 | Driver | |
2094 | ||
528dc603 L |
2095 | pie |
2096 | Common RejectNegative Negative(shared) | |
2097 | Create a position independent executable | |
2098 | ||
6d721f67 JM |
2099 | z |
2100 | Driver Joined Separate | |
2101 | ||
d7b42618 | 2102 | ; This comment is to ensure we retain the blank line above. |