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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 | |
5624e564 | 3 | ; Copyright (C) 2003-2015 Free Software Foundation, Inc. |
d7b42618 NB |
4 | ; |
5 | ; This file is part of GCC. | |
6 | ; | |
7 | ; GCC is free software; you can redistribute it and/or modify it under | |
8 | ; the terms of the GNU General Public License as published by the Free | |
9dcd6f09 | 9 | ; Software Foundation; either version 3, or (at your option) any later |
d7b42618 | 10 | ; version. |
c22cacf3 | 11 | ; |
d7b42618 NB |
12 | ; GCC is distributed in the hope that it will be useful, but WITHOUT ANY |
13 | ; WARRANTY; without even the implied warranty of MERCHANTABILITY or | |
14 | ; FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License | |
15 | ; for more details. | |
c22cacf3 | 16 | ; |
d7b42618 | 17 | ; You should have received a copy of the GNU General Public License |
9dcd6f09 NC |
18 | ; along with GCC; see the file COPYING3. If not see |
19 | ; <http://www.gnu.org/licenses/>. | |
d7b42618 | 20 | |
71733172 | 21 | ; See the GCC internals manual (options.texi) for a description of this file's format. |
d7b42618 NB |
22 | |
23 | ; Please try to keep this file in ASCII collating order. | |
24 | ||
e90afde6 JM |
25 | Variable |
26 | int target_flags | |
27 | ||
46625112 JM |
28 | Variable |
29 | int optimize | |
30 | ||
31 | Variable | |
32 | int optimize_size | |
33 | ||
bf7a7185 RG |
34 | Variable |
35 | int optimize_debug | |
36 | ||
0a8134ca JM |
37 | ; Not used directly to control optimizations, only to save -Ofast |
38 | ; setting for "optimize" attributes. | |
39 | Variable | |
40 | int optimize_fast | |
41 | ||
a7d0d30f JM |
42 | ; True if this is the lto front end. This is used to disable gimple |
43 | ; generation and lowering passes that are normally run on the output | |
44 | ; of a front end. These passes must be bypassed for lto since they | |
45 | ; have already been done before the gimple was written. | |
46 | Variable | |
47 | bool in_lto_p = false | |
48 | ||
a75bfaa6 JM |
49 | ; 0 means straightforward implementation of complex divide acceptable. |
50 | ; 1 means wide ranges of inputs must work for complex divide. | |
51 | ; 2 means C99-like requirements for complex multiply and divide. | |
52 | Variable | |
53 | int flag_complex_method = 1 | |
54 | ||
55 | ; Nonzero if subexpressions must be evaluated from left-to-right. | |
56 | Variable | |
57 | int flag_evaluation_order = 0 | |
58 | ||
a75bfaa6 JM |
59 | ; Language specific warning pass for unused results. |
60 | Variable | |
61 | bool flag_warn_unused_result = false | |
62 | ||
48476d13 JM |
63 | Variable |
64 | int *param_values | |
65 | ||
d5478783 JM |
66 | ; Nonzero if we should write GIMPLE bytecode for link-time optimization. |
67 | Variable | |
68 | int flag_generate_lto | |
69 | ||
f0d78df9 IV |
70 | ; Nonzero if we should write GIMPLE bytecode for offload compilation. |
71 | Variable | |
72 | int flag_generate_offload = 0 | |
73 | ||
d5478783 JM |
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 | ||
6a1f6c9c JM |
100 | ; These two are really VEC(char_p,heap) *. |
101 | ||
102 | Variable | |
103 | void *flag_instrument_functions_exclude_functions | |
104 | ||
105 | Variable | |
106 | void *flag_instrument_functions_exclude_files | |
107 | ||
69ccdddb JM |
108 | ; Generic structs (e.g. templates not explicitly specialized) |
109 | ; may not have a compilation unit associated with them, and so | |
110 | ; may need to be treated differently from ordinary structs. | |
111 | ; | |
112 | ; Structs only handled by reference (indirectly), will also usually | |
113 | ; not need as much debugging information. | |
114 | ||
115 | Variable | |
116 | enum debug_struct_file debug_struct_ordinary[DINFO_USAGE_NUM_ENUMS] = { DINFO_STRUCT_FILE_ANY, DINFO_STRUCT_FILE_ANY, DINFO_STRUCT_FILE_ANY } | |
117 | ||
118 | Variable | |
119 | enum debug_struct_file debug_struct_generic[DINFO_USAGE_NUM_ENUMS] = { DINFO_STRUCT_FILE_ANY, DINFO_STRUCT_FILE_ANY, DINFO_STRUCT_FILE_ANY } | |
120 | ||
0576d21f JM |
121 | ; True if we should exit after parsing options. |
122 | Variable | |
123 | bool exit_after_options | |
124 | ||
125 | ; Type(s) of debugging information we are producing (if any). See | |
126 | ; flag-types.h for the definitions of the different possible types of | |
127 | ; debugging information. | |
128 | Variable | |
129 | enum debug_info_type write_symbols = NO_DEBUG | |
130 | ||
131 | ; Level of debugging information we are producing. See flag-types.h | |
132 | ; for the definitions of the different possible levels. | |
133 | Variable | |
134 | enum debug_info_levels debug_info_level = DINFO_LEVEL_NONE | |
135 | ||
136 | ; Nonzero means use GNU-only extensions in the generated symbolic | |
137 | ; debugging information. Currently, this only has an effect when | |
138 | ; write_symbols is set to DBX_DEBUG, XCOFF_DEBUG, or DWARF_DEBUG. | |
139 | Variable | |
140 | bool use_gnu_debug_info_extensions | |
141 | ||
299404a1 JM |
142 | ; Original value of maximum field alignment in bytes, specified via |
143 | ; -fpack-struct=<value>. | |
144 | Variable | |
145 | unsigned int initial_max_fld_align = TARGET_DEFAULT_PACK_STRUCT | |
146 | ||
5e471ea6 JM |
147 | ; Type of stack check. |
148 | Variable | |
149 | enum stack_check_type flag_stack_check = NO_STACK_CHECK | |
150 | ||
a11e0df4 EB |
151 | ; True if stack usage information needs to be computed. |
152 | Variable | |
153 | bool flag_stack_usage_info = false | |
154 | ||
299404a1 JM |
155 | ; -dA causes debug commentary information to be produced in |
156 | ; the generated assembly code (to make it more readable). This option | |
157 | ; is generally only of use to those who actually need to read the | |
158 | ; generated assembly code (perhaps while debugging the compiler itself). | |
159 | ; Currently, this switch is only used by dwarf2out.c; however, it is intended | |
160 | ; to be a catchall for printing debug information in the assembler file. | |
161 | Variable | |
162 | int flag_debug_asm | |
163 | ||
164 | ; -dP causes the rtl to be emitted as a comment in assembly. | |
165 | Variable | |
166 | int flag_dump_rtl_in_asm | |
167 | ||
168 | ; Whether -da was passed (used only in handle_common_deferred_options). | |
169 | Variable | |
170 | bool flag_dump_all_passed | |
171 | ||
172 | ; Other flags saying which kinds of debugging dump have been requested. | |
173 | ||
174 | Variable | |
175 | int rtl_dump_and_exit | |
176 | ||
177 | Variable | |
178 | int flag_print_asm_name | |
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 | ||
de5a5fa1 MP |
214 | ; What the sanitizer should instrument |
215 | Variable | |
216 | unsigned int flag_sanitize | |
217 | ||
d95a2703 JJ |
218 | ; What sanitizers should recover from errors |
219 | Variable | |
fed4de37 | 220 | unsigned int flag_sanitize_recover = SANITIZE_UNDEFINED | SANITIZE_NONDEFAULT | SANITIZE_KERNEL_ADDRESS |
d95a2703 | 221 | |
91035653 JJ |
222 | ; Flag whether a prefix has been added to dump_base_name |
223 | Variable | |
224 | bool dump_base_name_prefixed = false | |
225 | ||
603349bf JM |
226 | ### |
227 | Driver | |
228 | ||
e200444e JM |
229 | -assemble |
230 | Driver Alias(S) | |
231 | ||
232 | -compile | |
233 | Driver Alias(c) | |
234 | ||
235 | -coverage | |
236 | Driver Alias(coverage) | |
237 | ||
238 | -debug | |
239 | Common Alias(g) | |
240 | ||
241 | -dump | |
242 | Common Separate Alias(d) | |
243 | ||
244 | -dump= | |
245 | Common Joined Alias(d) | |
246 | ||
247 | -dumpbase | |
248 | Common Separate Alias(dumpbase) | |
249 | ||
250 | -dumpdir | |
251 | Common Separate Alias(dumpdir) | |
252 | ||
253 | -entry | |
254 | Driver Separate Alias(e) | |
255 | ||
256 | -entry= | |
257 | Driver Joined Alias(e) | |
258 | ||
259 | -extra-warnings | |
260 | Common Warning Alias(Wextra) | |
261 | ||
262 | -for-assembler | |
263 | Driver Separate Alias(Xassembler) | |
264 | ||
265 | -for-assembler= | |
266 | Driver JoinedOrMissing Alias(Xassembler) | |
267 | ||
268 | -for-linker | |
269 | Driver Separate Alias(Xlinker) | |
270 | ||
271 | -for-linker= | |
272 | Driver JoinedOrMissing Alias(Xlinker) | |
273 | ||
274 | -force-link | |
275 | Driver Separate Alias(u) | |
276 | ||
277 | -force-link= | |
278 | Driver Joined Alias(u) | |
279 | ||
d185d268 | 280 | -help |
e200444e | 281 | Common Driver Var(help_flag) |
cf03fd63 | 282 | Display this information |
d185d268 | 283 | |
c662432e | 284 | -help= |
603349bf | 285 | Common Driver Report Joined |
c662432e | 286 | --help=<class> Display descriptions of a specific class of options. <class> is one or more of optimizers, target, warnings, undocumented, params |
903caebf | 287 | |
e200444e JM |
288 | -language |
289 | Driver Separate Alias(x) | |
290 | ||
291 | -language= | |
292 | Driver Joined Alias(x) | |
293 | ||
294 | -library-directory | |
295 | Driver Separate Alias(L) | |
296 | ||
297 | -library-directory= | |
298 | Driver Joined Alias(L) | |
299 | ||
300 | -no-canonical-prefixes | |
301 | Driver Alias(no-canonical-prefixes) | |
302 | ||
303 | -no-standard-libraries | |
304 | Driver Alias(nostdlib) | |
305 | ||
28b4fc51 JM |
306 | -no-sysroot-suffix |
307 | Driver Var(no_sysroot_suffix) | |
308 | ||
e200444e JM |
309 | -no-warnings |
310 | Common Alias(w) | |
311 | ||
312 | -optimize | |
313 | Common Alias(O) | |
314 | ||
315 | -output | |
316 | Common Driver Separate Alias(o) MissingArgError(missing filename after %qs) | |
317 | ||
318 | -output= | |
319 | Common Driver Joined Alias(o) MissingArgError(missing filename after %qs) | |
320 | ||
321 | -pass-exit-codes | |
322 | Driver Alias(pass-exit-codes) | |
323 | ||
324 | -pedantic | |
c1771a20 | 325 | Common Alias(Wpedantic) |
e200444e JM |
326 | |
327 | -pedantic-errors | |
328 | Common Alias(pedantic-errors) | |
329 | ||
330 | -pie | |
5460e1fc | 331 | Driver Alias(pie) |
e200444e JM |
332 | |
333 | -pipe | |
334 | Driver Alias(pipe) | |
335 | ||
336 | -prefix | |
337 | Driver Separate Alias(B) | |
338 | ||
339 | -prefix= | |
340 | Driver JoinedOrMissing Alias(B) | |
341 | ||
342 | -preprocess | |
343 | Driver Alias(E) | |
344 | ||
345 | -print-file-name | |
346 | Driver Separate Alias(print-file-name=) | |
347 | ||
348 | -print-file-name= | |
349 | Driver JoinedOrMissing Alias(print-file-name=) | |
350 | ||
351 | -print-libgcc-file-name | |
352 | Driver Alias(print-libgcc-file-name) | |
353 | ||
354 | -print-multi-directory | |
355 | Driver Alias(print-multi-directory) | |
356 | ||
357 | -print-multi-lib | |
358 | Driver Alias(print-multi-lib) | |
359 | ||
360 | -print-multi-os-directory | |
361 | Driver Alias(print-multi-os-directory) | |
362 | ||
e0cdc09f MK |
363 | -print-multiarch |
364 | Driver Alias(print-multiarch) | |
365 | ||
e200444e JM |
366 | -print-prog-name |
367 | Driver Separate Alias(print-prog-name=) | |
368 | ||
369 | -print-prog-name= | |
370 | Driver JoinedOrMissing Alias(print-prog-name=) | |
371 | ||
372 | -print-search-dirs | |
373 | Driver Alias(print-search-dirs) | |
374 | ||
375 | -print-sysroot | |
376 | Driver Alias(print-sysroot) | |
377 | ||
378 | -print-sysroot-headers-suffix | |
379 | Driver Alias(print-sysroot-headers-suffix) | |
380 | ||
381 | -profile | |
382 | Common Alias(p) | |
383 | ||
384 | -save-temps | |
385 | Driver Alias(save-temps) | |
386 | ||
387 | -shared | |
5460e1fc | 388 | Driver Alias(shared) |
e200444e JM |
389 | |
390 | -specs | |
391 | Driver Separate Alias(specs=) | |
392 | ||
393 | -specs= | |
394 | Driver Joined Alias(specs=) | |
395 | ||
396 | -static | |
397 | Driver Alias(static) | |
398 | ||
399 | -symbolic | |
400 | Driver Alias(symbolic) | |
401 | ||
d185d268 | 402 | -target-help |
603349bf | 403 | Common Driver |
c662432e NC |
404 | Alias for --help=target |
405 | ||
e200444e JM |
406 | -time |
407 | Driver Alias(time) | |
408 | ||
409 | -verbose | |
410 | Driver Alias(v) | |
411 | ||
412 | ;; The driver used to convert options such as --help into forms such | |
413 | ;; as -fhelp; the following four entries are for compatibility with | |
414 | ;; any direct uses of those (undocumented) -f forms | |
c662432e | 415 | fhelp |
e200444e | 416 | Common Driver Alias(-help) |
c662432e NC |
417 | |
418 | fhelp= | |
e200444e | 419 | Common Driver Joined Alias(-help=) |
c662432e NC |
420 | |
421 | ftarget-help | |
e200444e | 422 | Common Driver Alias(-target-help) |
c662432e | 423 | |
41fd0f9b | 424 | fversion |
e200444e | 425 | Common Driver Alias(-version) |
41fd0f9b | 426 | |
c662432e NC |
427 | -param |
428 | Common Separate | |
429 | --param <param>=<value> Set parameter <param> to value. See below for a complete list of parameters | |
d185d268 | 430 | |
e200444e JM |
431 | -param= |
432 | Common Joined Alias(-param) | |
433 | ||
434 | -sysroot | |
435 | Driver Separate Alias(-sysroot=) | |
436 | ||
603349bf JM |
437 | -sysroot= |
438 | Driver JoinedOrMissing | |
439 | ||
d185d268 | 440 | -version |
603349bf JM |
441 | Common Driver |
442 | ||
443 | B | |
444 | Driver Joined Separate | |
445 | ||
446 | E | |
447 | Driver | |
d185d268 | 448 | |
d9d16a19 JM |
449 | L |
450 | Driver Joined Separate | |
451 | ||
dd9f93dc JM |
452 | N |
453 | Driver | |
454 | ||
903caebf | 455 | O |
ab442df7 | 456 | Common JoinedOrMissing Optimization |
cf03fd63 | 457 | -O<number> Set optimization level to <number> |
903caebf NB |
458 | |
459 | Os | |
ab442df7 | 460 | Common Optimization |
cf03fd63 | 461 | Optimize for space rather than speed |
903caebf | 462 | |
be6d3f0e RG |
463 | Ofast |
464 | Common Optimization | |
465 | Optimize for speed disregarding exact standards compliance | |
466 | ||
bf7a7185 RG |
467 | Og |
468 | Common Optimization | |
469 | Optimize for debugging experience rather than speed or size | |
470 | ||
dd9f93dc JM |
471 | Q |
472 | Driver | |
473 | ||
474 | Qn | |
475 | Driver Negative(Qy) | |
476 | ||
477 | Qy | |
478 | Driver Negative(Qn) | |
479 | ||
6d721f67 JM |
480 | R |
481 | Driver Joined Separate | |
482 | ||
603349bf JM |
483 | S |
484 | Driver | |
485 | ||
6d721f67 JM |
486 | T |
487 | Driver Joined Separate | |
488 | ||
489 | Tbss | |
490 | Driver Separate | |
491 | ||
e69d7376 JM |
492 | Tbss= |
493 | Driver Joined | |
494 | ||
6d721f67 JM |
495 | Tdata |
496 | Driver Separate | |
497 | ||
e69d7376 JM |
498 | Tdata= |
499 | Driver Joined | |
500 | ||
6d721f67 JM |
501 | Ttext |
502 | Driver Separate | |
503 | ||
e69d7376 JM |
504 | Ttext= |
505 | Driver Joined | |
506 | ||
903caebf | 507 | W |
5de8299c | 508 | Common RejectNegative Warning Alias(Wextra) |
28786366 | 509 | This switch is deprecated; use -Wextra instead |
903caebf | 510 | |
603349bf JM |
511 | Wa, |
512 | Driver JoinedOrMissing | |
513 | ||
514 | Wl, | |
515 | Driver JoinedOrMissing | |
516 | ||
517 | Wp, | |
518 | Driver JoinedOrMissing | |
519 | ||
e01cc6dc | 520 | Waggregate-return |
c662432e | 521 | Common Var(warn_aggregate_return) Warning |
28786366 | 522 | Warn about returning structures, unions or arrays |
e01cc6dc | 523 | |
fbd28bc3 JJ |
524 | Waggressive-loop-optimizations |
525 | Common Var(warn_aggressive_loop_optimizations) Init(1) Warning | |
526 | Warn if a loop with constant number of iterations triggers undefined behavior | |
527 | ||
590b1f2d | 528 | Warray-bounds |
21af5cdf | 529 | Common Var(warn_array_bounds) Warning |
590b1f2d DM |
530 | Warn if an array is accessed out of bounds |
531 | ||
de1b5c17 MU |
532 | Warray-bounds= |
533 | Common Joined RejectNegative UInteger Var(warn_array_bounds) Warning | |
534 | Warn if an array is accessed out of bounds | |
535 | ||
5c498b10 | 536 | Wattributes |
c662432e | 537 | Common Var(warn_attributes) Init(1) Warning |
5c498b10 DD |
538 | Warn about inappropriate attribute usage |
539 | ||
e01cc6dc | 540 | Wcast-align |
c662432e | 541 | Common Var(warn_cast_align) Warning |
28786366 | 542 | Warn about pointer casts which increase alignment |
e01cc6dc | 543 | |
87cf0651 SB |
544 | Wcpp |
545 | Common Var(warn_cpp) Init(1) Warning | |
546 | Warn when a #warning directive is encountered | |
547 | ||
e01cc6dc | 548 | Wdeprecated-declarations |
c662432e | 549 | Common Var(warn_deprecated_decl) Init(1) Warning |
28786366 | 550 | Warn about uses of __attribute__((deprecated)) declarations |
e01cc6dc NB |
551 | |
552 | Wdisabled-optimization | |
c662432e | 553 | Common Var(warn_disabled_optimization) Warning |
28786366 | 554 | Warn when an optimization pass is disabled |
e01cc6dc NB |
555 | |
556 | Werror | |
50431bc4 | 557 | Common Var(warnings_are_errors) |
28786366 | 558 | Treat all warnings as errors |
e01cc6dc | 559 | |
79cf5994 DD |
560 | Werror= |
561 | Common Joined | |
562 | Treat specified warning as error | |
563 | ||
903caebf | 564 | Wextra |
62a67c94 | 565 | Common Var(extra_warnings) Warning |
cf03fd63 | 566 | Print extra (possibly unwanted) warnings |
903caebf | 567 | |
c65a01af | 568 | Wfatal-errors |
50431bc4 | 569 | Common Var(flag_fatal_errors) |
c65a01af RG |
570 | Exit on the first error occurred |
571 | ||
a214518f SP |
572 | Wframe-larger-than= |
573 | Common RejectNegative Joined UInteger | |
f94e1d66 | 574 | -Wframe-larger-than=<number> Warn if a function's stack frame requires more than <number> bytes |
a214518f | 575 | |
a3a704a4 MH |
576 | Wfree-nonheap-object |
577 | Common Var(warn_free_nonheap_object) Init(1) Warning | |
578 | Warn when attempting to free a non-heap object | |
579 | ||
e01cc6dc | 580 | Winline |
c662432e | 581 | Common Var(warn_inline) Warning |
28786366 | 582 | Warn when an inlined function cannot be inlined |
e01cc6dc | 583 | |
86951993 AM |
584 | Winvalid-memory-model |
585 | Common Var(warn_invalid_memory_model) Init(1) Warning | |
586 | Warn when an atomic memory model parameter is known to be outside the valid range. | |
587 | ||
e01cc6dc | 588 | Wlarger-than- |
5de8299c | 589 | Common RejectNegative Joined Warning Undocumented Alias(Wlarger-than=) |
e8fc888d MLI |
590 | |
591 | Wlarger-than= | |
592 | Common RejectNegative Joined UInteger Warning | |
593 | -Wlarger-than=<number> Warn if an object is larger than <number> bytes | |
e01cc6dc | 594 | |
f9cc1a70 | 595 | Wunsafe-loop-optimizations |
c662432e | 596 | Common Var(warn_unsafe_loop_optimizations) Warning |
f9cc1a70 PB |
597 | Warn if the loop cannot be optimized due to nontrivial assumptions. |
598 | ||
e01cc6dc | 599 | Wmissing-noreturn |
94ee6979 | 600 | Common Alias(Wsuggest-attribute=noreturn) |
e01cc6dc | 601 | |
c59f7203 | 602 | Wodr |
a0fd3373 | 603 | Common Var(warn_odr_violations) Init(1) Warning |
c59f7203 JH |
604 | Warn about some C++ One Definition Rule violations during link time optimization |
605 | ||
71834ad3 | 606 | Woverflow |
c662432e | 607 | Common Var(warn_overflow) Init(1) Warning |
71834ad3 RS |
608 | Warn about overflow in arithmetic expressions |
609 | ||
259d29e3 JH |
610 | Wlto-type-mismatch |
611 | Common Var(warn_lto_type_mismatch) Init(1) Warning | |
612 | During link time optimization warn about mismatched types of global declarations | |
613 | ||
e01cc6dc | 614 | Wpacked |
c662432e | 615 | Common Var(warn_packed) Warning |
28786366 | 616 | Warn when the packed attribute has no effect on struct layout |
e01cc6dc NB |
617 | |
618 | Wpadded | |
c662432e | 619 | Common Var(warn_padded) Warning |
28786366 | 620 | Warn when padding is required to align structure members |
e01cc6dc | 621 | |
c1771a20 | 622 | Wpedantic |
2b71f4a4 | 623 | Common Var(pedantic) Init(0) Warning |
c1771a20 MLI |
624 | Issue warnings needed for strict compliance to the standard |
625 | ||
b4dfdc11 MG |
626 | Wreturn-local-addr |
627 | Common Var(warn_return_local_addr) Init(1) Warning | |
628 | Warn about returning a pointer/reference to a local or temporary variable. | |
629 | ||
e01cc6dc | 630 | Wshadow |
c662432e | 631 | Common Var(warn_shadow) Warning |
28786366 | 632 | Warn when one local variable shadows another |
e01cc6dc | 633 | |
7d69de61 | 634 | Wstack-protector |
c662432e | 635 | Common Var(warn_stack_protect) Warning |
7d69de61 RH |
636 | Warn when not issuing stack smashing protection for some reason |
637 | ||
a11e0df4 EB |
638 | Wstack-usage= |
639 | Common Joined RejectNegative UInteger Var(warn_stack_usage) Init(-1) Warning | |
640 | Warn if stack usage might be larger than specified amount | |
641 | ||
e01cc6dc | 642 | Wstrict-aliasing |
c662432e | 643 | Common Warning |
28786366 | 644 | Warn about code which might break strict aliasing rules |
e01cc6dc | 645 | |
5399d643 | 646 | Wstrict-aliasing= |
65d4f2cd | 647 | Common Joined RejectNegative UInteger Var(warn_strict_aliasing) Warning |
5399d643 JW |
648 | Warn about code which might break strict aliasing rules |
649 | ||
6ac01510 | 650 | Wstrict-overflow |
21af5cdf | 651 | Common Warning |
6ac01510 ILT |
652 | Warn about optimizations that assume that signed overflow is undefined |
653 | ||
654 | Wstrict-overflow= | |
65d4f2cd | 655 | Common Joined RejectNegative UInteger Var(warn_strict_overflow) Warning |
6ac01510 ILT |
656 | Warn about optimizations that assume that signed overflow is undefined |
657 | ||
5dc16b19 MLI |
658 | Wsuggest-attribute=const |
659 | Common Var(warn_suggest_attribute_const) Warning | |
660 | Warn about functions which might be candidates for __attribute__((const)) | |
661 | ||
662 | Wsuggest-attribute=pure | |
663 | Common Var(warn_suggest_attribute_pure) Warning | |
664 | Warn about functions which might be candidates for __attribute__((pure)) | |
665 | ||
7ea6b6cf JH |
666 | Wsuggest-attribute=noreturn |
667 | Common Var(warn_suggest_attribute_noreturn) Warning | |
668 | Warn about functions which might be candidates for __attribute__((noreturn)) | |
669 | ||
91bc34a9 JH |
670 | Wsuggest-final-types |
671 | Common Var(warn_suggest_final_types) Warning | |
672 | Warn about C++ polymorphic types where adding final keyword would improve code quality | |
673 | ||
674 | Wsuggest-final-methods | |
675 | Common Var(warn_suggest_final_methods) Warning | |
676 | Warn about C++ virtual methods where adding final keyword would improve code quality | |
677 | ||
e01cc6dc | 678 | Wsystem-headers |
c662432e | 679 | Common Var(warn_system_headers) Warning |
f3fdaec4 | 680 | Do not suppress warnings from system headers |
e01cc6dc | 681 | |
8ffadef9 MG |
682 | Wtrampolines |
683 | Common Var(warn_trampolines) Warning | |
684 | Warn whenever a trampoline is generated | |
685 | ||
faebccf9 | 686 | Wtype-limits |
95744782 | 687 | Common Var(warn_type_limits) Warning EnabledBy(Wextra) |
faebccf9 DN |
688 | Warn if a comparison is always true or always false due to the limited range of the data type |
689 | ||
e01cc6dc | 690 | Wuninitialized |
7d5a5747 | 691 | Common Var(warn_uninitialized) Warning EnabledBy(Wextra) |
28786366 | 692 | Warn about uninitialized automatic variables |
e01cc6dc | 693 | |
2f964ad6 | 694 | Wmaybe-uninitialized |
7d5a5747 | 695 | Common Var(warn_maybe_uninitialized) Warning EnabledBy(Wuninitialized) |
2f964ad6 XDL |
696 | Warn about maybe uninitialized automatic variables |
697 | ||
e01cc6dc | 698 | Wunreachable-code |
2d2bd949 | 699 | Common Ignore |
bc3c12a2 | 700 | Does nothing. Preserved for backward compatibility. |
e01cc6dc | 701 | |
903caebf | 702 | Wunused |
e73f7547 | 703 | Common Var(warn_unused) Init(0) Warning |
cf03fd63 | 704 | Enable all -Wunused- warnings |
903caebf | 705 | |
ebfbbdc5 | 706 | Wunused-but-set-parameter |
d919140b | 707 | Common Var(warn_unused_but_set_parameter) Warning EnabledBy(Wunused && Wextra) |
ebfbbdc5 JJ |
708 | Warn when a function parameter is only set, otherwise unused |
709 | ||
710 | Wunused-but-set-variable | |
7d5a5747 | 711 | Common Var(warn_unused_but_set_variable) Warning EnabledBy(Wunused) |
ebfbbdc5 JJ |
712 | Warn when a variable is only set, otherwise unused |
713 | ||
e01cc6dc | 714 | Wunused-function |
7d5a5747 | 715 | Common Var(warn_unused_function) Warning EnabledBy(Wunused) |
28786366 | 716 | Warn when a function is unused |
e01cc6dc NB |
717 | |
718 | Wunused-label | |
7d5a5747 | 719 | Common Var(warn_unused_label) Warning EnabledBy(Wunused) |
28786366 | 720 | Warn when a label is unused |
e01cc6dc NB |
721 | |
722 | Wunused-parameter | |
d919140b | 723 | Common Var(warn_unused_parameter) Warning EnabledBy(Wunused && Wextra) |
28786366 | 724 | Warn when a function parameter is unused |
e01cc6dc NB |
725 | |
726 | Wunused-value | |
7d5a5747 | 727 | Common Var(warn_unused_value) Warning EnabledBy(Wunused) |
28786366 | 728 | Warn when an expression value is unused |
e01cc6dc NB |
729 | |
730 | Wunused-variable | |
7d5a5747 | 731 | Common Var(warn_unused_variable) Warning EnabledBy(Wunused) |
28786366 | 732 | Warn when a variable is unused |
e01cc6dc | 733 | |
16c1c158 | 734 | Wcoverage-mismatch |
650cfcab NV |
735 | Common Var(warn_coverage_mismatch) Init(1) Warning |
736 | Warn in case profiles in -fprofile-use do not match | |
16c1c158 | 737 | |
cdbb5ba3 AS |
738 | Wvector-operation-performance |
739 | Common Var(warn_vector_operation_performance) Warning | |
740 | Warn when a vector operation is compiled outside the SIMD | |
741 | ||
603349bf JM |
742 | Xassembler |
743 | Driver Separate | |
744 | ||
745 | Xlinker | |
746 | Driver Separate | |
747 | ||
748 | Xpreprocessor | |
749 | Driver Separate | |
750 | ||
dd9f93dc JM |
751 | Z |
752 | Driver | |
753 | ||
d185d268 | 754 | aux-info |
d5478783 | 755 | Common Separate Var(aux_info_file_name) |
cf03fd63 | 756 | -aux-info <file> Emit declaration information into <file> |
d185d268 NB |
757 | |
758 | aux-info= | |
5de8299c | 759 | Common Joined Alias(aux-info) |
d185d268 NB |
760 | |
761 | auxbase | |
d5478783 | 762 | Common Separate RejectDriver Var(aux_base_name) |
d185d268 NB |
763 | |
764 | auxbase-strip | |
603349bf JM |
765 | Common Separate RejectDriver |
766 | ||
e200444e JM |
767 | coverage |
768 | Driver | |
769 | ||
603349bf JM |
770 | c |
771 | Driver | |
d185d268 NB |
772 | |
773 | d | |
774 | Common Joined | |
cf03fd63 | 775 | -d<letters> Enable dumps from specific passes of the compiler |
d185d268 NB |
776 | |
777 | dumpbase | |
d5478783 | 778 | Common Separate Var(dump_base_name) |
cf03fd63 | 779 | -dumpbase <file> Set the file basename to be used for dumps |
d185d268 | 780 | |
d7fb0a6d | 781 | dumpdir |
d5478783 | 782 | Common Separate Var(dump_dir_name) |
316fc112 | 783 | -dumpdir <dir> Set the directory name to be used for dumps |
d7fb0a6d | 784 | |
603349bf JM |
785 | dumpmachine |
786 | Driver | |
787 | ||
788 | dumpspecs | |
789 | Driver | |
790 | ||
791 | dumpversion | |
792 | Driver | |
793 | ||
e200444e JM |
794 | e |
795 | Driver Joined Separate | |
796 | ||
fa381cb2 JM |
797 | ; This option has historically been passed down to the linker by an |
798 | ; accident of a %{e*} spec, so ensure it continues to be passed down | |
799 | ; as a single option. The supported option for this purpose is | |
800 | ; -rdynamic. See PR 47390. | |
801 | export-dynamic | |
802 | Driver Undocumented | |
803 | ||
31b66477 KC |
804 | ; The version of the C++ ABI in use. The following values are allowed: |
805 | ; | |
806 | ; 0: The version of the ABI believed most conformant with the C++ ABI | |
807 | ; specification. This ABI may change as bugs are discovered and fixed. | |
808 | ; Therefore, 0 will not necessarily indicate the same ABI in different | |
809 | ; versions of G++. | |
810 | ; | |
90d84934 | 811 | ; 1: The version of the ABI first used in G++ 3.2. No longer selectable. |
31b66477 | 812 | ; |
785f21af JM |
813 | ; 2: The version of the ABI first used in G++ 3.4, and the default |
814 | ; until GCC 4.9. | |
abfe01ce JM |
815 | ; |
816 | ; 3: The version of the ABI that fixes the missing underscore | |
817 | ; in template non-type arguments of pointer type. | |
818 | ; | |
819 | ; 4: The version of the ABI that introduces unambiguous mangling of | |
55af847f | 820 | ; vector types. First selectable in G++ 4.5. |
99a8d35b | 821 | ; |
67e18edb | 822 | ; 5: The version of the ABI that ignores attribute const/noreturn |
55af847f | 823 | ; in function pointer mangling, and corrects mangling of decltype and |
67e18edb | 824 | ; function parameters used in other parameters and the return type. |
55af847f | 825 | ; First selectable in G++ 4.6. |
67e18edb | 826 | ; |
4b6aaa99 JM |
827 | ; 6: The version of the ABI that doesn't promote scoped enums to int and |
828 | ; changes the mangling of template argument packs, const/static_cast, | |
829 | ; prefix ++ and --, and a class scope function used as a template | |
830 | ; argument. | |
967444bb JM |
831 | ; First selectable in G++ 4.7. |
832 | ; | |
622aac0b JM |
833 | ; 7: The version of the ABI that treats nullptr_t as a builtin type and |
834 | ; corrects the mangling of lambdas in default argument scope. | |
a3ddb738 | 835 | ; First selectable in G++ 4.8. |
0861bec8 JM |
836 | ; |
837 | ; 8: The version of the ABI that corrects the substitution behavior of | |
838 | ; function types with function-cv-qualifiers. | |
603eaec4 JM |
839 | ; First selectable in G++ 4.9 and default in G++ 5. |
840 | ; | |
841 | ; 9: The version of the ABI that mangles attributes that affect type | |
842 | ; identity, such as ia32 calling convention attributes (stdcall, etc.) | |
843 | ; Default in G++ 6 (set in c_common_post_options). | |
0861bec8 | 844 | ; |
31b66477 KC |
845 | ; Additional positive integers will be assigned as new versions of |
846 | ; the ABI become the default version of the ABI. | |
57782ad8 | 847 | fabi-version= |
ca0e51a0 JM |
848 | Common Joined RejectNegative UInteger Var(flag_abi_version) Init(0) |
849 | The version of the C++ ABI in use | |
57782ad8 | 850 | |
6e616110 RB |
851 | faggressive-loop-optimizations |
852 | Common Report Var(flag_aggressive_loop_optimizations) Optimization Init(1) | |
853 | Aggressively optimize loops using language constraints | |
854 | ||
6ff3a151 | 855 | falign-functions |
ab442df7 | 856 | Common Report Var(align_functions,0) Optimization UInteger |
f3fdaec4 | 857 | Align the start of functions |
6ff3a151 | 858 | |
058de654 | 859 | falign-functions= |
d5478783 | 860 | Common RejectNegative Joined UInteger Var(align_functions) |
058de654 | 861 | |
6ff3a151 | 862 | falign-jumps |
ab442df7 | 863 | Common Report Var(align_jumps,0) Optimization UInteger |
f3fdaec4 | 864 | Align labels which are only reached by jumping |
6ff3a151 | 865 | |
058de654 | 866 | falign-jumps= |
d5478783 | 867 | Common RejectNegative Joined UInteger Var(align_jumps) |
058de654 | 868 | |
6ff3a151 | 869 | falign-labels |
ab442df7 | 870 | Common Report Var(align_labels,0) Optimization UInteger |
f3fdaec4 | 871 | Align all labels |
6ff3a151 | 872 | |
058de654 | 873 | falign-labels= |
d5478783 | 874 | Common RejectNegative Joined UInteger Var(align_labels) |
058de654 | 875 | |
6ff3a151 | 876 | falign-loops |
3020190e | 877 | Common Report Var(align_loops,0) Optimization UInteger |
f3fdaec4 | 878 | Align the start of loops |
6ff3a151 | 879 | |
058de654 | 880 | falign-loops= |
d5478783 | 881 | Common RejectNegative Joined UInteger Var(align_loops) |
058de654 | 882 | |
6ff3a151 | 883 | fargument-alias |
2d2bd949 | 884 | Common Ignore |
0d3c82d6 | 885 | Does nothing. Preserved for backward compatibility. |
6ff3a151 NB |
886 | |
887 | fargument-noalias | |
2d2bd949 | 888 | Common Ignore |
0d3c82d6 | 889 | Does nothing. Preserved for backward compatibility. |
6ff3a151 NB |
890 | |
891 | fargument-noalias-global | |
2d2bd949 | 892 | Common Ignore |
0d3c82d6 | 893 | Does nothing. Preserved for backward compatibility. |
6ff3a151 | 894 | |
0698a1d2 | 895 | fargument-noalias-anything |
2d2bd949 | 896 | Common Ignore |
0d3c82d6 | 897 | Does nothing. Preserved for backward compatibility. |
0698a1d2 | 898 | |
de5a5fa1 MP |
899 | fsanitize= |
900 | Common Driver Report Joined | |
901 | Select what to sanitize | |
32b4b7f5 | 902 | |
fd960af2 YG |
903 | fasan-shadow-offset= |
904 | Common Joined RejectNegative Var(common_deferred_options) Defer | |
905 | -fasan-shadow-offset=<number> Use custom shadow memory offset. | |
906 | ||
18af8d16 YG |
907 | fsanitize-sections= |
908 | Common Joined RejectNegative Var(common_deferred_options) Defer | |
909 | -fsanitize-sections=<sec1,sec2,...> Sanitize global variables | |
910 | in user-defined sections. | |
911 | ||
d95a2703 JJ |
912 | fsanitize-recover= |
913 | Common Report Joined | |
1c33c9b7 JJ |
914 | After diagnosing undefined behavior attempt to continue execution |
915 | ||
d95a2703 JJ |
916 | fsanitize-recover |
917 | Common Report | |
918 | This switch is deprecated; use -fsanitize-recover= instead | |
919 | ||
1c33c9b7 JJ |
920 | fsanitize-undefined-trap-on-error |
921 | Common Report Var(flag_sanitize_undefined_trap_on_error) Init(0) | |
922 | Use trap instead of a library function for undefined behavior sanitization | |
923 | ||
6ff3a151 | 924 | fasynchronous-unwind-tables |
c662432e | 925 | Common Report Var(flag_asynchronous_unwind_tables) Optimization |
f3fdaec4 | 926 | Generate unwind tables that are exact at each instruction boundary |
6ff3a151 | 927 | |
6fb5fa3c | 928 | fauto-inc-dec |
b16650ac | 929 | Common Report Var(flag_auto_inc_dec) Init(1) Optimization |
6fb5fa3c DB |
930 | Generate auto-inc/dec instructions |
931 | ||
be3c16c4 | 932 | fauto-profile |
b16650ac | 933 | Common Report Var(flag_auto_profile) |
be3c16c4 DC |
934 | Use sample profile information for call graph node weights. The default |
935 | profile file is fbdata.afdo in 'pwd'. | |
936 | ||
937 | fauto-profile= | |
938 | Common Joined RejectNegative Var(auto_profile_file) | |
939 | Use sample profile information for call graph node weights. The profile | |
940 | file is specified in the argument. | |
941 | ||
31b66477 KC |
942 | ; -fcheck-bounds causes gcc to generate array bounds checks. |
943 | ; For C, C++ and ObjC: defaults off. | |
944 | ; For Java: defaults to on. | |
945 | ; For Fortran: defaults to off. | |
6ff3a151 | 946 | fbounds-check |
50431bc4 | 947 | Common Report Var(flag_bounds_check) |
f3fdaec4 | 948 | Generate code to check bounds before indexing arrays |
6ff3a151 NB |
949 | |
950 | fbranch-count-reg | |
14379e66 | 951 | Common Report Var(flag_branch_on_count_reg) Optimization |
f3fdaec4 | 952 | Replace add, compare, branch with branch on count register |
6ff3a151 NB |
953 | |
954 | fbranch-probabilities | |
c662432e | 955 | Common Report Var(flag_branch_probabilities) Optimization |
f3fdaec4 | 956 | Use profiling information for branch probabilities |
6ff3a151 | 957 | |
de32c0cb | 958 | fbranch-target-load-optimize |
c662432e | 959 | Common Report Var(flag_branch_target_load_optimize) Optimization |
f3fdaec4 | 960 | Perform branch target load optimization before prologue / epilogue threading |
de32c0cb NB |
961 | |
962 | fbranch-target-load-optimize2 | |
c662432e | 963 | Common Report Var(flag_branch_target_load_optimize2) Optimization |
f3fdaec4 | 964 | Perform branch target load optimization after prologue / epilogue threading |
de32c0cb | 965 | |
1194fc79 | 966 | fbtr-bb-exclusive |
c662432e | 967 | Common Report Var(flag_btr_bb_exclusive) Optimization |
1194fc79 R |
968 | Restrict target load migration not to re-use registers in any basic block |
969 | ||
058de654 | 970 | fcall-saved- |
21bf1558 | 971 | Common Joined RejectNegative Var(common_deferred_options) Defer |
cf03fd63 | 972 | -fcall-saved-<register> Mark <register> as being preserved across functions |
058de654 NB |
973 | |
974 | fcall-used- | |
21bf1558 | 975 | Common Joined RejectNegative Var(common_deferred_options) Defer |
cf03fd63 | 976 | -fcall-used-<register> Mark <register> as being corrupted by function calls |
058de654 | 977 | |
31b66477 KC |
978 | ; Nonzero for -fcaller-saves: allocate values in regs that need to |
979 | ; be saved across function calls, if that produces overall better code. | |
980 | ; Optional now, so people can test it. | |
de32c0cb | 981 | fcaller-saves |
c662432e | 982 | Common Report Var(flag_caller_saves) Optimization |
f3fdaec4 | 983 | Save registers around function calls |
de32c0cb | 984 | |
3d8864c0 SP |
985 | fcheck-data-deps |
986 | Common Report Var(flag_check_data_deps) | |
987 | Compare the results of several data dependence analyzers. | |
988 | ||
2284b034 MG |
989 | fcheck-new |
990 | Common Var(flag_check_new) | |
991 | Check the return value of new in C++ | |
992 | ||
ccaeeafe NC |
993 | fcombine-stack-adjustments |
994 | Common Report Var(flag_combine_stack_adjustments) Optimization | |
995 | Looks for opportunities to reduce stack adjustments and stack references. | |
996 | ||
6ff3a151 | 997 | fcommon |
b16650ac | 998 | Common Report Var(flag_no_common,0) |
f3fdaec4 | 999 | Do not put uninitialized globals in the common section |
6ff3a151 | 1000 | |
603349bf JM |
1001 | fcompare-debug |
1002 | Driver | |
1003 | ; Converted by the driver to -fcompare-debug= options. | |
1004 | ||
2153915d | 1005 | fcompare-debug= |
603349bf | 1006 | Common Driver JoinedOrMissing RejectNegative Var(flag_compare_debug_opt) |
f94e1d66 | 1007 | -fcompare-debug[=<opts>] Compile with and without e.g. -gtoggle, and compare the final-insns dump |
2153915d AO |
1008 | |
1009 | fcompare-debug-second | |
5e471ea6 | 1010 | Common Driver RejectNegative Var(flag_compare_debug) |
2153915d AO |
1011 | Run only the second compilation of -fcompare-debug |
1012 | ||
e692f276 RH |
1013 | fcompare-elim |
1014 | Common Report Var(flag_compare_elim_after_reload) Optimization | |
1015 | Perform comparison elimination after register allocation has finished | |
1016 | ||
b5b8b0ac AO |
1017 | fconserve-stack |
1018 | Common Var(flag_conserve_stack) Optimization | |
1019 | Do not perform optimizations increasing noticeably stack usage | |
1020 | ||
6ff3a151 | 1021 | fcprop-registers |
c662432e | 1022 | Common Report Var(flag_cprop_registers) Optimization |
f3fdaec4 | 1023 | Perform a register copy-propagation optimization pass |
6ff3a151 | 1024 | |
de32c0cb | 1025 | fcrossjumping |
c662432e | 1026 | Common Report Var(flag_crossjumping) Optimization |
f3fdaec4 | 1027 | Perform cross-jumping optimization |
de32c0cb NB |
1028 | |
1029 | fcse-follow-jumps | |
c662432e | 1030 | Common Report Var(flag_cse_follow_jumps) Optimization |
f3fdaec4 | 1031 | When running CSE, follow jumps to their targets |
de32c0cb NB |
1032 | |
1033 | fcse-skip-blocks | |
2d2bd949 | 1034 | Common Ignore |
5f39ad47 | 1035 | Does nothing. Preserved for backward compatibility. |
de32c0cb | 1036 | |
c7463669 | 1037 | fcx-limited-range |
5e46b0c6 | 1038 | Common Report Var(flag_cx_limited_range) Optimization SetByCombined |
c7463669 RH |
1039 | Omit range reduction step when performing complex division |
1040 | ||
35085f76 JB |
1041 | fcx-fortran-rules |
1042 | Common Report Var(flag_cx_fortran_rules) Optimization | |
1043 | Complex multiplication and division follow Fortran rules | |
1044 | ||
6ff3a151 | 1045 | fdata-sections |
b16650ac | 1046 | Common Report Var(flag_data_sections) |
f3fdaec4 | 1047 | Place data items into their own section |
6ff3a151 | 1048 | |
0a090f42 | 1049 | fdbg-cnt-list |
299404a1 | 1050 | Common Report Var(common_deferred_options) Defer |
0a090f42 SP |
1051 | List all available debugging counters with their limits and counts. |
1052 | ||
6fb5fa3c | 1053 | fdbg-cnt= |
299404a1 | 1054 | Common RejectNegative Joined Var(common_deferred_options) Defer |
f94e1d66 | 1055 | -fdbg-cnt=<counter>:<limit>[,<counter>:<limit>,...] Set the debug counter limit. |
6fb5fa3c | 1056 | |
c8aea42c | 1057 | fdebug-prefix-map= |
299404a1 | 1058 | Common Joined RejectNegative Var(common_deferred_options) Defer |
c8aea42c PB |
1059 | Map one directory name to another in debug information |
1060 | ||
76f9db36 | 1061 | fdebug-types-section |
98095aa3 | 1062 | Common Report Var(flag_debug_types_section) Init(0) |
76f9db36 JJ |
1063 | Output .debug_types section when using DWARF v4 debuginfo. |
1064 | ||
31b66477 KC |
1065 | ; Nonzero for -fdefer-pop: don't pop args after each function call |
1066 | ; instead save them up to pop many calls' args with one insns. | |
de32c0cb | 1067 | fdefer-pop |
c662432e | 1068 | Common Report Var(flag_defer_pop) Optimization |
f3fdaec4 | 1069 | Defer popping functions args from stack until later |
de32c0cb NB |
1070 | |
1071 | fdelayed-branch | |
c662432e | 1072 | Common Report Var(flag_delayed_branch) Optimization |
f3fdaec4 | 1073 | Attempt to fill delay slots of branch instructions |
de32c0cb | 1074 | |
2da02156 | 1075 | fdelete-dead-exceptions |
b16650ac | 1076 | Common Report Var(flag_delete_dead_exceptions) Init(0) Optimization |
2da02156 EB |
1077 | Delete dead instructions that may throw exceptions |
1078 | ||
de32c0cb | 1079 | fdelete-null-pointer-checks |
467d8d51 | 1080 | Common Report Var(flag_delete_null_pointer_checks) Init(-1) Optimization |
f3fdaec4 | 1081 | Delete useless null pointer checks |
de32c0cb | 1082 | |
1e29e4d3 JH |
1083 | fdevirtualize-at-ltrans |
1084 | Common Report Var(flag_ltrans_devirtualize) | |
d6ae9a6d | 1085 | Stream extra data to support more aggressive devirtualization in LTO local transformation mode |
1e29e4d3 | 1086 | |
bbc9396b JH |
1087 | fdevirtualize-speculatively |
1088 | Common Report Var(flag_devirtualize_speculatively) Optimization | |
1089 | Perform speculative devirtualization | |
1090 | ||
ca1eedf6 JH |
1091 | fdevirtualize |
1092 | Common Report Var(flag_devirtualize) Optimization | |
1093 | Try to convert virtual calls to direct ones. | |
1094 | ||
de32c0cb | 1095 | fdiagnostics-show-location= |
e6d4b984 | 1096 | Common Joined RejectNegative Enum(diagnostic_prefixing_rule) |
cf03fd63 | 1097 | -fdiagnostics-show-location=[once|every-line] How often to emit source location at the beginning of line-wrapped diagnostics |
de32c0cb | 1098 | |
e6d4b984 JM |
1099 | ; Required for these enum values. |
1100 | SourceInclude | |
1101 | pretty-print.h | |
1102 | ||
1103 | Enum | |
1104 | Name(diagnostic_prefixing_rule) Type(int) | |
1105 | ||
1106 | EnumValue | |
1107 | Enum(diagnostic_prefixing_rule) String(once) Value(DIAGNOSTICS_SHOW_PREFIX_ONCE) | |
1108 | ||
1109 | EnumValue | |
1110 | Enum(diagnostic_prefixing_rule) String(every-line) Value(DIAGNOSTICS_SHOW_PREFIX_EVERY_LINE) | |
1111 | ||
9fec0042 MLI |
1112 | fdiagnostics-show-caret |
1113 | Common Var(flag_diagnostics_show_caret) Init(1) | |
1114 | Show the source line with a caret indicating the column | |
1115 | ||
4b84d650 JJ |
1116 | fdiagnostics-color |
1117 | Common Alias(fdiagnostics-color=,always,never) | |
1118 | ; | |
1119 | ||
1120 | fdiagnostics-color= | |
97aa8bb6 | 1121 | Driver Common Joined RejectNegative Var(flag_diagnostics_show_color) Enum(diagnostic_color_rule) Init(DIAGNOSTICS_COLOR_NO) |
4b84d650 JJ |
1122 | -fdiagnostics-color=[never|always|auto] Colorize diagnostics |
1123 | ||
1124 | ; Required for these enum values. | |
1125 | SourceInclude | |
1126 | diagnostic-color.h | |
1127 | ||
1128 | Enum | |
1129 | Name(diagnostic_color_rule) Type(int) | |
1130 | ||
1131 | EnumValue | |
1132 | Enum(diagnostic_color_rule) String(never) Value(DIAGNOSTICS_COLOR_NO) | |
1133 | ||
1134 | EnumValue | |
1135 | Enum(diagnostic_color_rule) String(always) Value(DIAGNOSTICS_COLOR_YES) | |
1136 | ||
1137 | EnumValue | |
1138 | Enum(diagnostic_color_rule) String(auto) Value(DIAGNOSTICS_COLOR_AUTO) | |
1139 | ||
ccf08a6e | 1140 | fdiagnostics-show-option |
c7d0de89 | 1141 | Common Var(flag_diagnostics_show_option) Init(1) |
c85ce869 | 1142 | Amend appropriate diagnostic messages with the command line option that controls them |
ccf08a6e | 1143 | |
226c52aa XDL |
1144 | fdisable- |
1145 | Common Joined RejectNegative Var(common_deferred_options) Defer | |
1146 | -fdisable-[tree|rtl|ipa]-<pass>=range1+range2 disables an optimization pass | |
1147 | ||
1148 | fenable- | |
1149 | Common Joined RejectNegative Var(common_deferred_options) Defer | |
1150 | -fenable-[tree|rtl|ipa]-<pass>=range1+range2 enables an optimization pass | |
1151 | ||
6de9cd9a | 1152 | fdump- |
21bf1558 | 1153 | Common Joined RejectNegative Var(common_deferred_options) Defer |
6de9cd9a DN |
1154 | -fdump-<type> Dump various compiler internals to a file |
1155 | ||
d1583032 JM |
1156 | fdump-final-insns |
1157 | Driver RejectNegative | |
1158 | ||
2153915d AO |
1159 | fdump-final-insns= |
1160 | Common RejectNegative Joined Var(flag_dump_final_insns) | |
1161 | -fdump-final-insns=filename Dump to filename the insns at the end of translation | |
1162 | ||
c6a13190 ILT |
1163 | fdump-go-spec= |
1164 | Common RejectNegative Joined Var(flag_dump_go_spec) | |
1165 | -fdump-go-spec=filename Write all declarations to file as Go code | |
1166 | ||
24a7799e R |
1167 | fdump-noaddr |
1168 | Common Report Var(flag_dump_noaddr) | |
1169 | Suppress output of addresses in debugging dumps | |
1170 | ||
dc10fd96 JJ |
1171 | freport-bug |
1172 | Common Driver Var(flag_report_bug) | |
1173 | Collect and dump debug information into temporary file if ICE in C/C++ | |
1174 | compiler occured. | |
1175 | ||
ba4ad400 DM |
1176 | fdump-internal-locations |
1177 | Common Var(flag_dump_locations) Init(0) | |
1178 | Dump detailed information on GCC's internal representation of source code locations | |
1179 | ||
deced1e2 XDL |
1180 | fdump-passes |
1181 | Common Var(flag_dump_passes) Init(0) | |
1182 | Dump optimization passes | |
1183 | ||
6ff3a151 | 1184 | fdump-unnumbered |
e90afde6 | 1185 | Common Report Var(flag_dump_unnumbered) |
24a7799e | 1186 | Suppress output of instruction numbers, line number notes and addresses in debugging dumps |
6ff3a151 | 1187 | |
2aa7c49b | 1188 | fdump-unnumbered-links |
e90afde6 | 1189 | Common Report Var(flag_dump_unnumbered_links) |
2aa7c49b AO |
1190 | Suppress output of previous and next insn numbers in debugging dumps |
1191 | ||
b5b8b0ac AO |
1192 | fdwarf2-cfi-asm |
1193 | Common Report Var(flag_dwarf2_cfi_asm) Init(HAVE_GAS_CFI_DIRECTIVE) | |
1194 | Enable CFI tables via GAS assembler directives. | |
1195 | ||
355866de | 1196 | fearly-inlining |
c662432e | 1197 | Common Report Var(flag_early_inlining) Init(1) Optimization |
355866de RG |
1198 | Perform early inlining |
1199 | ||
de32c0cb | 1200 | feliminate-dwarf2-dups |
50431bc4 | 1201 | Common Report Var(flag_eliminate_dwarf2_dups) |
f3fdaec4 | 1202 | Perform DWARF2 duplicate elimination |
de32c0cb | 1203 | |
07ffa034 MJ |
1204 | fipa-sra |
1205 | Common Report Var(flag_ipa_sra) Init(0) Optimization | |
1206 | Perform interprocedural reduction of aggregates | |
1207 | ||
6a08f7b3 | 1208 | feliminate-unused-debug-symbols |
50431bc4 | 1209 | Common Report Var(flag_debug_only_used_symbols) |
8bfef637 | 1210 | Perform unused symbol elimination in debug info |
6a08f7b3 | 1211 | |
de32c0cb | 1212 | feliminate-unused-debug-types |
50431bc4 | 1213 | Common Report Var(flag_eliminate_unused_debug_types) Init(1) |
f3fdaec4 | 1214 | Perform unused type elimination in debug info |
de32c0cb | 1215 | |
e713adf6 | 1216 | femit-class-debug-always |
eae8e474 | 1217 | Common Report Var(flag_emit_class_debug_always) Init(0) |
e713adf6 CD |
1218 | Do not suppress C++ class debug information. |
1219 | ||
6ff3a151 | 1220 | fexceptions |
c662432e | 1221 | Common Report Var(flag_exceptions) Optimization |
f3fdaec4 | 1222 | Enable exception handling |
6ff3a151 | 1223 | |
de32c0cb | 1224 | fexpensive-optimizations |
c662432e | 1225 | Common Report Var(flag_expensive_optimizations) Optimization |
f3fdaec4 | 1226 | Perform a number of minor, expensive optimizations |
de32c0cb | 1227 | |
8ce94e44 | 1228 | fexcess-precision= |
e6d4b984 | 1229 | Common Joined RejectNegative Enum(excess_precision) Var(flag_excess_precision_cmdline) Init(EXCESS_PRECISION_DEFAULT) |
8ce94e44 JM |
1230 | -fexcess-precision=[fast|standard] Specify handling of excess floating-point precision |
1231 | ||
e6d4b984 JM |
1232 | Enum |
1233 | Name(excess_precision) Type(enum excess_precision) UnknownError(unknown excess precision style %qs) | |
1234 | ||
1235 | EnumValue | |
1236 | Enum(excess_precision) String(fast) Value(EXCESS_PRECISION_FAST) | |
1237 | ||
1238 | EnumValue | |
1239 | Enum(excess_precision) String(standard) Value(EXCESS_PRECISION_STANDARD) | |
1240 | ||
058de654 NB |
1241 | ffast-math |
1242 | Common | |
1243 | ||
cc8547a7 | 1244 | ffat-lto-objects |
e9f67e62 | 1245 | Common Var(flag_fat_lto_objects) |
cc8547a7 AK |
1246 | Output lto objects containing both the intermediate language and binary output. |
1247 | ||
6ff3a151 | 1248 | ffinite-math-only |
5e46b0c6 | 1249 | Common Report Var(flag_finite_math_only) Optimization SetByCombined |
f3fdaec4 | 1250 | Assume no NaNs or infinities are generated |
6ff3a151 | 1251 | |
058de654 | 1252 | ffixed- |
21bf1558 | 1253 | Common Joined RejectNegative Var(common_deferred_options) Defer |
cf03fd63 | 1254 | -ffixed-<register> Mark <register> as being unavailable to the compiler |
058de654 | 1255 | |
de32c0cb | 1256 | ffloat-store |
c662432e | 1257 | Common Report Var(flag_float_store) Optimization |
31b66477 | 1258 | Don't allocate floats and doubles in extended-precision registers |
de32c0cb NB |
1259 | |
1260 | fforce-addr | |
2d2bd949 | 1261 | Common Ignore |
3de5e93a | 1262 | Does nothing. Preserved for backward compatibility. |
de32c0cb | 1263 | |
2ca2b607 SB |
1264 | fforward-propagate |
1265 | Common Report Var(flag_forward_propagate) Optimization | |
a52b023a PB |
1266 | Perform a forward propagation pass on RTL |
1267 | ||
16949072 | 1268 | ffp-contract= |
bea30e0d | 1269 | Common Joined RejectNegative Enum(fp_contract_mode) Var(flag_fp_contract_mode) Init(FP_CONTRACT_FAST) Optimization |
16949072 RG |
1270 | -ffp-contract=[off|on|fast] Perform floating-point expression contraction. |
1271 | ||
e6d4b984 JM |
1272 | Enum |
1273 | Name(fp_contract_mode) Type(enum fp_contract_mode) UnknownError(unknown floating point contraction style %qs) | |
1274 | ||
1275 | EnumValue | |
1276 | Enum(fp_contract_mode) String(off) Value(FP_CONTRACT_OFF) | |
1277 | ||
1278 | ; Not implemented, fall back to conservative FP_CONTRACT_OFF. | |
1279 | EnumValue | |
1280 | Enum(fp_contract_mode) String(on) Value(FP_CONTRACT_OFF) | |
1281 | ||
1282 | EnumValue | |
1283 | Enum(fp_contract_mode) String(fast) Value(FP_CONTRACT_FAST) | |
1284 | ||
31b66477 KC |
1285 | ; Nonzero means don't put addresses of constant functions in registers. |
1286 | ; Used for compiling the Unix kernel, where strange substitutions are | |
1287 | ; done on the assembly output. | |
de32c0cb | 1288 | ffunction-cse |
b16650ac | 1289 | Common Report Var(flag_no_function_cse,0) Optimization |
f3fdaec4 | 1290 | Allow function addresses to be held in registers |
de32c0cb | 1291 | |
6ff3a151 | 1292 | ffunction-sections |
50431bc4 | 1293 | Common Report Var(flag_function_sections) |
f3fdaec4 | 1294 | Place each function into its own section |
6ff3a151 | 1295 | |
de32c0cb | 1296 | fgcse |
c662432e | 1297 | Common Report Var(flag_gcse) Optimization |
f3fdaec4 | 1298 | Perform global common subexpression elimination |
de32c0cb NB |
1299 | |
1300 | fgcse-lm | |
c662432e | 1301 | Common Report Var(flag_gcse_lm) Init(1) Optimization |
f3fdaec4 | 1302 | Perform enhanced load motion during global common subexpression elimination |
de32c0cb NB |
1303 | |
1304 | fgcse-sm | |
c662432e | 1305 | Common Report Var(flag_gcse_sm) Init(0) Optimization |
f3fdaec4 | 1306 | Perform store motion after global common subexpression elimination |
de32c0cb | 1307 | |
f5f2e3cd | 1308 | fgcse-las |
c662432e | 1309 | Common Report Var(flag_gcse_las) Init(0) Optimization |
f9957958 MH |
1310 | Perform redundant load after store elimination in global common subexpression |
1311 | elimination | |
1312 | ||
1313 | fgcse-after-reload | |
c662432e | 1314 | Common Report Var(flag_gcse_after_reload) Optimization |
f9957958 | 1315 | Perform global common subexpression elimination after register allocation |
c85ce869 | 1316 | has finished |
f5f2e3cd | 1317 | |
d0a58904 | 1318 | ; This option is not documented yet as its semantics will change. |
f8bf9252 | 1319 | fgraphite |
ff6a32a9 | 1320 | Common Report Var(flag_graphite) Optimization |
f8bf9252 SP |
1321 | Enable in and out of Graphite representation |
1322 | ||
204b560f SP |
1323 | fgraphite-identity |
1324 | Common Report Var(flag_graphite_identity) Optimization | |
1325 | Enable Graphite Identity transformation | |
1326 | ||
372a6eb8 BS |
1327 | fhoist-adjacent-loads |
1328 | Common Report Var(flag_hoist_adjacent_loads) Optimization | |
1329 | Enable hoisting adjacent loads to encourage generating conditional move | |
1330 | instructions | |
1331 | ||
3cf0e270 SP |
1332 | floop-parallelize-all |
1333 | Common Report Var(flag_loop_parallelize_all) Optimization | |
204b560f SP |
1334 | Mark all loops as parallel |
1335 | ||
f8bf9252 SP |
1336 | floop-strip-mine |
1337 | Common Report Var(flag_loop_strip_mine) Optimization | |
1338 | Enable Loop Strip Mining transformation | |
1339 | ||
1340 | floop-interchange | |
1341 | Common Report Var(flag_loop_interchange) Optimization | |
1342 | Enable Loop Interchange transformation | |
1343 | ||
1344 | floop-block | |
1345 | Common Report Var(flag_loop_block) Optimization | |
1346 | Enable Loop Blocking transformation | |
1347 | ||
20d3465b MN |
1348 | floop-unroll-and-jam |
1349 | Common Report Var(flag_loop_unroll_jam) Optimization | |
1350 | Enable Loop Unroll Jam transformation | |
1351 | ||
0a35513e AH |
1352 | fgnu-tm |
1353 | Common Report Var(flag_tm) | |
1354 | Enable support for GNU transactional memory | |
1355 | ||
da34ade5 JM |
1356 | fgnu-unique |
1357 | Common Report Var(flag_gnu_unique) Init(1) | |
1358 | Use STB_GNU_UNIQUE if supported by the assembler | |
1359 | ||
98af4c9f | 1360 | floop-flatten |
093193be MK |
1361 | Common Ignore |
1362 | Does nothing. Preserved for backward compatibility. | |
98af4c9f | 1363 | |
b60cc080 TG |
1364 | floop-nest-optimize |
1365 | Common Report Var(flag_loop_optimize_isl) Optimization | |
1366 | Enable the ISL based loop nest optimizer | |
1367 | ||
6a78b724 | 1368 | fstrict-volatile-bitfields |
b16650ac | 1369 | Common Report Var(flag_strict_volatile_bitfields) Init(-1) Optimization |
6a78b724 DD |
1370 | Force bitfield accesses to match their type width |
1371 | ||
6ff3a151 | 1372 | fguess-branch-probability |
c662432e | 1373 | Common Report Var(flag_guess_branch_prob) Optimization |
f3fdaec4 | 1374 | Enable guessing of branch probabilities |
6ff3a151 | 1375 | |
31b66477 KC |
1376 | ; Nonzero means ignore `#ident' directives. 0 means handle them. |
1377 | ; Generate position-independent code for executables if possible | |
1378 | ; On SVR4 targets, it also controls whether or not to emit a | |
1379 | ; string identifying the compiler. | |
6ff3a151 | 1380 | fident |
50431bc4 | 1381 | Common Report Var(flag_no_ident,0) |
f3fdaec4 | 1382 | Process #ident directives |
6ff3a151 | 1383 | |
de32c0cb | 1384 | fif-conversion |
c662432e | 1385 | Common Report Var(flag_if_conversion) Optimization |
f3fdaec4 | 1386 | Perform conversion of conditional jumps to branchless equivalents |
de32c0cb NB |
1387 | |
1388 | fif-conversion2 | |
c662432e | 1389 | Common Report Var(flag_if_conversion2) Optimization |
f3fdaec4 | 1390 | Perform conversion of conditional jumps to conditional execution |
de32c0cb | 1391 | |
87e2a8fd | 1392 | fstack-reuse= |
082908e3 | 1393 | Common Joined RejectNegative Enum(stack_reuse_level) Var(flag_stack_reuse) Init(SR_ALL) Optimization |
87e2a8fd XDL |
1394 | -fstack-reuse=[all|named_vars|none] Set stack reuse level for local variables. |
1395 | ||
1396 | Enum | |
1397 | Name(stack_reuse_level) Type(enum stack_reuse_level) UnknownError(unknown Stack Reuse Level %qs) | |
1398 | ||
1399 | EnumValue | |
1400 | Enum(stack_reuse_level) String(all) Value(SR_ALL) | |
1401 | ||
1402 | EnumValue | |
1403 | Enum(stack_reuse_level) String(named_vars) Value(SR_NAMED_VARS) | |
1404 | ||
1405 | EnumValue | |
1406 | Enum(stack_reuse_level) String(none) Value(SR_NONE) | |
1407 | ||
384a5197 SP |
1408 | ftree-loop-if-convert |
1409 | Common Report Var(flag_tree_loop_if_convert) Init(-1) Optimization | |
1410 | Convert conditional jumps in innermost loops to branchless equivalents | |
1411 | ||
bd544141 SP |
1412 | ftree-loop-if-convert-stores |
1413 | Common Report Var(flag_tree_loop_if_convert_stores) Optimization | |
1414 | Also if-convert conditional jumps containing memory writes | |
1415 | ||
31b66477 KC |
1416 | ; -finhibit-size-directive inhibits output of .size for ELF. |
1417 | ; This is used only for compiling crtstuff.c, | |
1418 | ; and it may be extended to other effects | |
1419 | ; needed for crtstuff.c on other systems. | |
6ff3a151 | 1420 | finhibit-size-directive |
50431bc4 | 1421 | Common Report Var(flag_inhibit_size_directive) |
f3fdaec4 | 1422 | Do not generate .size directives |
6ff3a151 | 1423 | |
3e293154 | 1424 | findirect-inlining |
2bf86c84 | 1425 | Common Report Var(flag_indirect_inlining) Optimization |
3e293154 MJ |
1426 | Perform indirect inlining |
1427 | ||
99ea07f8 RG |
1428 | ; General flag to enable inlining. Specifying -fno-inline will disable |
1429 | ; all inlining apart from always-inline functions. | |
de32c0cb | 1430 | finline |
0f042bc5 | 1431 | Common Report Var(flag_no_inline,0) Init(0) Optimization |
99ea07f8 | 1432 | Enable inlining of function declared \"inline\", disabling disables all inlining |
de32c0cb | 1433 | |
4d4b8cb9 JH |
1434 | finline-small-functions |
1435 | Common Report Var(flag_inline_small_functions) Optimization | |
99ea07f8 | 1436 | Integrate functions into their callers when code size is known not to grow |
4d4b8cb9 | 1437 | |
de32c0cb | 1438 | finline-functions |
c662432e | 1439 | Common Report Var(flag_inline_functions) Optimization |
99ea07f8 | 1440 | Integrate functions not declared \"inline\" into their callers when profitable |
de32c0cb | 1441 | |
355866de | 1442 | finline-functions-called-once |
fb37c1de | 1443 | Common Report Var(flag_inline_functions_called_once) Optimization |
99ea07f8 | 1444 | Integrate functions only required by their single caller |
d63db217 | 1445 | |
d302c9d6 | 1446 | finline-limit- |
5de8299c | 1447 | Common RejectNegative Joined Alias(finline-limit=) |
d302c9d6 NB |
1448 | |
1449 | finline-limit= | |
1450 | Common RejectNegative Joined UInteger | |
cf03fd63 | 1451 | -finline-limit=<number> Limit the size of inlined functions to <number> |
d302c9d6 | 1452 | |
86951993 AM |
1453 | finline-atomics |
1454 | Common Report Var(flag_inline_atomics) Init(1) Optimization | |
1455 | Inline __atomic operations when a lock free instruction sequence is available. | |
1456 | ||
6ff3a151 | 1457 | finstrument-functions |
50431bc4 | 1458 | Common Report Var(flag_instrument_function_entry_exit) |
f3fdaec4 | 1459 | Instrument function entry and exit with profiling calls |
6ff3a151 | 1460 | |
8d5a7d1f ILT |
1461 | finstrument-functions-exclude-function-list= |
1462 | Common RejectNegative Joined | |
1463 | -finstrument-functions-exclude-function-list=name,... Do not instrument listed functions | |
1464 | ||
1465 | finstrument-functions-exclude-file-list= | |
1466 | Common RejectNegative Joined | |
1467 | -finstrument-functions-exclude-file-list=filename,... Do not instrument functions listed in files | |
1468 | ||
d6e14e8f | 1469 | fipa-cp |
c662432e | 1470 | Common Report Var(flag_ipa_cp) Optimization |
bbc9396b | 1471 | Perform interprocedural constant propagation |
d6e14e8f | 1472 | |
5e45130d JH |
1473 | fipa-cp-clone |
1474 | Common Report Var(flag_ipa_cp_clone) Optimization | |
1475 | Perform cloning to make Interprocedural constant propagation stronger | |
1476 | ||
3c99176a L |
1477 | fipa-cp-alignment |
1478 | Common Report Var(flag_ipa_cp_alignment) Optimization | |
1479 | Perform alignment discovery and propagation to make Interprocedural constant propagation stronger | |
1480 | ||
e65bb9be JH |
1481 | fipa-profile |
1482 | Common Report Var(flag_ipa_profile) Init(0) Optimization | |
1483 | Perform interprocedural profile propagation | |
ea900239 | 1484 | |
4cf4d6a3 | 1485 | fipa-pta |
c662432e | 1486 | Common Report Var(flag_ipa_pta) Init(0) Optimization |
4cf4d6a3 DB |
1487 | Perform interprocedural points-to analysis |
1488 | ||
e65bb9be JH |
1489 | fipa-pure-const |
1490 | Common Report Var(flag_ipa_pure_const) Init(0) Optimization | |
1491 | Discover pure and const functions | |
1492 | ||
b84d4347 ML |
1493 | fipa-icf |
1494 | Common Report Var(flag_ipa_icf) Optimization | |
1495 | Perform Identical Code Folding for functions and read-only variables | |
1496 | ||
1497 | fipa-icf-functions | |
1498 | Common Report Var(flag_ipa_icf_functions) Optimization | |
1499 | Perform Identical Code Folding for functions | |
1500 | ||
1501 | fipa-icf-variables | |
b16650ac | 1502 | Common Report Var(flag_ipa_icf_variables) |
b84d4347 ML |
1503 | Perform Identical Code Folding for variables |
1504 | ||
ea900239 | 1505 | fipa-reference |
c662432e | 1506 | Common Report Var(flag_ipa_reference) Init(0) Optimization |
ea900239 DB |
1507 | Discover readonly and non addressable static variables |
1508 | ||
43d861a5 | 1509 | fipa-matrix-reorg |
04f92ff4 RG |
1510 | Common Ignore |
1511 | Does nothing. Preserved for backward compatibility. | |
43d861a5 | 1512 | |
e1dc98b2 | 1513 | fipa-struct-reorg |
b8beb4d1 RG |
1514 | Common Ignore |
1515 | Does nothing. Preserved for backward compatibility. | |
e1dc98b2 | 1516 | |
058e97ec | 1517 | fira-algorithm= |
b16650ac | 1518 | Common Joined RejectNegative Enum(ira_algorithm) Var(flag_ira_algorithm) Init(IRA_ALGORITHM_CB) Optimization |
7db7ed3c VM |
1519 | -fira-algorithm=[CB|priority] Set the used IRA algorithm |
1520 | ||
e6d4b984 JM |
1521 | Enum |
1522 | Name(ira_algorithm) Type(enum ira_algorithm) UnknownError(unknown IRA algorithm %qs) | |
1523 | ||
1524 | EnumValue | |
1525 | Enum(ira_algorithm) String(CB) Value(IRA_ALGORITHM_CB) | |
1526 | ||
1527 | EnumValue | |
1528 | Enum(ira_algorithm) String(priority) Value(IRA_ALGORITHM_PRIORITY) | |
1529 | ||
7db7ed3c | 1530 | fira-region= |
b16650ac | 1531 | Common Joined RejectNegative Enum(ira_region) Var(flag_ira_region) Init(IRA_REGION_AUTODETECT) Optimization |
7db7ed3c | 1532 | -fira-region=[one|all|mixed] Set regions for IRA |
058e97ec | 1533 | |
e6d4b984 JM |
1534 | Enum |
1535 | Name(ira_region) Type(enum ira_region) UnknownError(unknown IRA region %qs) | |
1536 | ||
1537 | EnumValue | |
1538 | Enum(ira_region) String(one) Value(IRA_REGION_ONE) | |
1539 | ||
1540 | EnumValue | |
1541 | Enum(ira_region) String(all) Value(IRA_REGION_ALL) | |
1542 | ||
1543 | EnumValue | |
1544 | Enum(ira_region) String(mixed) Value(IRA_REGION_MIXED) | |
1545 | ||
b11f0116 BC |
1546 | fira-hoist-pressure |
1547 | Common Report Var(flag_ira_hoist_pressure) Init(1) Optimization | |
1548 | Use IRA based register pressure calculation | |
1549 | in RTL hoist optimizations. | |
1550 | ||
1833192f | 1551 | fira-loop-pressure |
f3d83ffe | 1552 | Common Report Var(flag_ira_loop_pressure) Optimization |
1833192f VM |
1553 | Use IRA based register pressure calculation |
1554 | in RTL loop optimizations. | |
1555 | ||
058e97ec | 1556 | fira-share-save-slots |
b16650ac | 1557 | Common Report Var(flag_ira_share_save_slots) Init(1) Optimization |
058e97ec VM |
1558 | Share slots for saving different hard registers. |
1559 | ||
1560 | fira-share-spill-slots | |
b16650ac | 1561 | Common Report Var(flag_ira_share_spill_slots) Init(1) Optimization |
058e97ec VM |
1562 | Share stack slots for spilled pseudo-registers. |
1563 | ||
1564 | fira-verbose= | |
5498f011 | 1565 | Common RejectNegative Joined UInteger Var(flag_ira_verbose) Init(5) |
f94e1d66 | 1566 | -fira-verbose=<number> Control IRA's level of diagnostic messages. |
058e97ec | 1567 | |
8b11a64c | 1568 | fivopts |
c662432e | 1569 | Common Report Var(flag_ivopts) Init(1) Optimization |
8b11a64c ZD |
1570 | Optimize induction variables on trees |
1571 | ||
82c0180d | 1572 | fjump-tables |
c662432e | 1573 | Common Var(flag_jump_tables) Init(1) Optimization |
82c0180d JM |
1574 | Use jump tables for sufficiently large switch statements |
1575 | ||
de32c0cb | 1576 | fkeep-inline-functions |
50431bc4 | 1577 | Common Report Var(flag_keep_inline_functions) |
f3fdaec4 | 1578 | Generate code for functions even if they are fully inlined |
de32c0cb NB |
1579 | |
1580 | fkeep-static-consts | |
50431bc4 | 1581 | Common Report Var(flag_keep_static_consts) Init(1) |
f3fdaec4 | 1582 | Emit static const variables even if they are not used |
de32c0cb | 1583 | |
6ff3a151 | 1584 | fleading-underscore |
50431bc4 | 1585 | Common Report Var(flag_leading_underscore) Init(-1) |
f3fdaec4 | 1586 | Give external symbols a leading underscore |
6ff3a151 | 1587 | |
efa1cdf0 | 1588 | floop-optimize |
2d2bd949 | 1589 | Common Ignore |
c0220ea4 | 1590 | Does nothing. Preserved for backward compatibility. |
efa1cdf0 | 1591 | |
d9cf932c VM |
1592 | flra-remat |
1593 | Common Report Var(flag_lra_remat) Optimization | |
1594 | Do CFG-sensitive rematerialization in LRA | |
1595 | ||
d7f09764 | 1596 | flto |
014d92e1 | 1597 | Common |
d7f09764 DN |
1598 | Enable link-time optimization. |
1599 | ||
014d92e1 JH |
1600 | flto= |
1601 | Common RejectNegative Joined Var(flag_lto) | |
1602 | Link-time optimization with number of parallel jobs or jobserver. | |
1603 | ||
783dab6b RB |
1604 | Enum |
1605 | Name(lto_partition_model) Type(enum lto_partition_model) UnknownError(unknown LTO partitioning model %qs) | |
852e4bd2 | 1606 | |
783dab6b RB |
1607 | EnumValue |
1608 | Enum(lto_partition_model) String(none) Value(LTO_PARTITION_NONE) | |
852e4bd2 | 1609 | |
783dab6b RB |
1610 | EnumValue |
1611 | Enum(lto_partition_model) String(one) Value(LTO_PARTITION_ONE) | |
1612 | ||
1613 | EnumValue | |
1614 | Enum(lto_partition_model) String(balanced) Value(LTO_PARTITION_BALANCED) | |
1615 | ||
1616 | EnumValue | |
1617 | Enum(lto_partition_model) String(1to1) Value(LTO_PARTITION_1TO1) | |
1618 | ||
1619 | EnumValue | |
1620 | Enum(lto_partition_model) String(max) Value(LTO_PARTITION_MAX) | |
c3c445e1 | 1621 | |
783dab6b RB |
1622 | flto-partition= |
1623 | Common Joined RejectNegative Enum(lto_partition_model) Var(flag_lto_partition) Init(LTO_PARTITION_BALANCED) | |
1624 | Specify the algorithm to partition symbols and vars at linktime | |
014d92e1 | 1625 | |
d7f09764 DN |
1626 | ; The initial value of -1 comes from Z_DEFAULT_COMPRESSION in zlib.h. |
1627 | flto-compression-level= | |
fcfbd84e | 1628 | Common Joined RejectNegative UInteger Var(flag_lto_compression_level) Init(-1) |
f94e1d66 | 1629 | -flto-compression-level=<number> Use zlib compression level <number> for IL |
d7f09764 | 1630 | |
1ee85ee1 JH |
1631 | flto-odr-type-merging |
1632 | Common Report Var(flag_lto_odr_type_mering) Init(1) | |
1633 | Merge C++ types using One Definition Rule | |
1634 | ||
d7f09764 | 1635 | flto-report |
1d67dde8 | 1636 | Common Report Var(flag_lto_report) Init(0) |
d7f09764 DN |
1637 | Report various link-time optimization statistics |
1638 | ||
057f8f20 AK |
1639 | flto-report-wpa |
1640 | Common Report Var(flag_lto_report_wpa) Init(0) | |
1641 | Report various link-time optimization statistics for WPA only | |
1642 | ||
6ff3a151 | 1643 | fmath-errno |
5e46b0c6 | 1644 | Common Report Var(flag_errno_math) Init(1) Optimization SetByCombined |
f3fdaec4 | 1645 | Set errno after built-in math functions |
6ff3a151 | 1646 | |
3a789837 NF |
1647 | fmax-errors= |
1648 | Common Joined RejectNegative UInteger Var(flag_max_errors) | |
1649 | -fmax-errors=<number> Maximum number of errors to report | |
1650 | ||
6ff3a151 | 1651 | fmem-report |
50431bc4 | 1652 | Common Report Var(mem_report) |
f3fdaec4 | 1653 | Report on permanent memory allocation |
6ff3a151 | 1654 | |
b3e44629 AK |
1655 | fmem-report-wpa |
1656 | Common Report Var(mem_report_wpa) | |
1657 | Report on permanent memory allocation in WPA only | |
1658 | ||
31b66477 KC |
1659 | ; This will attempt to merge constant section constants, if 1 only |
1660 | ; string constants and constants from constant pool, if 2 also constant | |
1661 | ; variables. | |
6ff3a151 | 1662 | fmerge-all-constants |
0a7246ee | 1663 | Common Report Var(flag_merge_constants,2) Init(1) |
f3fdaec4 | 1664 | Attempt to merge identical constants and constant variables |
6ff3a151 NB |
1665 | |
1666 | fmerge-constants | |
0a7246ee | 1667 | Common Report Var(flag_merge_constants,1) |
f3fdaec4 | 1668 | Attempt to merge identical constants across compilation units |
6ff3a151 | 1669 | |
28a08168 ILT |
1670 | fmerge-debug-strings |
1671 | Common Report Var(flag_merge_debug_strings) Init(1) | |
1672 | Attempt to merge identical debug strings across compilation units | |
1673 | ||
de32c0cb NB |
1674 | fmessage-length= |
1675 | Common RejectNegative Joined UInteger | |
cf03fd63 | 1676 | -fmessage-length=<number> Limit diagnostics to <number> characters per line. 0 suppresses line-wrapping |
de32c0cb | 1677 | |
e5626198 | 1678 | fmodulo-sched |
c662432e | 1679 | Common Report Var(flag_modulo_sched) Optimization |
e5626198 AZ |
1680 | Perform SMS based modulo scheduling before the first scheduling pass |
1681 | ||
517d76fa | 1682 | fmodulo-sched-allow-regmoves |
b16650ac | 1683 | Common Report Var(flag_modulo_sched_allow_regmoves) Optimization |
517d76fa VY |
1684 | Perform SMS based modulo scheduling with register moves allowed |
1685 | ||
5e962776 | 1686 | fmove-loop-invariants |
14379e66 | 1687 | Common Report Var(flag_move_loop_invariants) Optimization |
5e962776 ZD |
1688 | Move loop invariant computations out of loops |
1689 | ||
6fb5fa3c | 1690 | fdce |
6ae4be32 | 1691 | Common Var(flag_dce) Init(1) Optimization |
6fb5fa3c DB |
1692 | Use the RTL dead code elimination pass |
1693 | ||
1694 | fdse | |
6ae4be32 | 1695 | Common Var(flag_dse) Init(1) Optimization |
6fb5fa3c DB |
1696 | Use the RTL dead store elimination pass |
1697 | ||
d72372e4 | 1698 | freschedule-modulo-scheduled-loops |
c662432e | 1699 | Common Report Var(flag_resched_modulo_sched) Optimization |
d72372e4 MH |
1700 | Enable/Disable the traditional scheduling in loops that already passed modulo scheduling |
1701 | ||
6ff3a151 | 1702 | fnon-call-exceptions |
c662432e | 1703 | Common Report Var(flag_non_call_exceptions) Optimization |
f3fdaec4 | 1704 | Support synchronous non-call exceptions |
6ff3a151 | 1705 | |
c713ddc0 BS |
1706 | foffload= |
1707 | Common Driver Joined MissingArgError(options or targets missing after %qs) | |
1708 | -foffload=<targets>=<options> Specify offloading targets and options for them | |
1709 | ||
1710 | foffload-abi= | |
1711 | Common Joined RejectNegative Enum(offload_abi) Var(flag_offload_abi) Init(OFFLOAD_ABI_UNSET) | |
1712 | -foffload-abi=[lp64|ilp32] Set the ABI to use in an offload compiler | |
1713 | ||
1714 | Enum | |
1715 | Name(offload_abi) Type(enum offload_abi) UnknownError(unknown offload ABI %qs) | |
1716 | ||
1717 | EnumValue | |
1718 | Enum(offload_abi) String(ilp32) Value(OFFLOAD_ABI_ILP32) | |
1719 | ||
1720 | EnumValue | |
1721 | Enum(offload_abi) String(lp64) Value(OFFLOAD_ABI_LP64) | |
1722 | ||
de32c0cb | 1723 | fomit-frame-pointer |
c662432e | 1724 | Common Report Var(flag_omit_frame_pointer) Optimization |
f3fdaec4 | 1725 | When possible do not generate stack frames |
de32c0cb | 1726 | |
78c60e3d SS |
1727 | fopt-info |
1728 | Common Report Var(flag_opt_info) Optimization | |
1729 | Enable all optimization info dumps on stderr | |
1730 | ||
1731 | fopt-info- | |
1732 | Common Joined RejectNegative Var(common_deferred_options) Defer | |
1733 | -fopt-info[-<type>=filename] Dump compiler optimization details | |
1734 | ||
6ff3a151 | 1735 | foptimize-register-move |
3b6d1699 VM |
1736 | Common Ignore |
1737 | Does nothing. Preserved for backward compatibility. | |
6ff3a151 | 1738 | |
de32c0cb | 1739 | foptimize-sibling-calls |
c662432e | 1740 | Common Report Var(flag_optimize_sibling_calls) Optimization |
f3fdaec4 | 1741 | Optimize sibling and tail recursive calls |
de32c0cb | 1742 | |
3e485f62 | 1743 | fpartial-inlining |
b16650ac | 1744 | Common Report Var(flag_partial_inlining) Optimization |
3e485f62 JH |
1745 | Perform partial inlining |
1746 | ||
a5573239 JH |
1747 | fpre-ipa-mem-report |
1748 | Common Report Var(pre_ipa_mem_report) | |
1749 | Report on memory allocation before interprocedural optimization | |
1750 | ||
1751 | fpost-ipa-mem-report | |
1752 | Common Report Var(post_ipa_mem_report) | |
1753 | Report on memory allocation before interprocedural optimization | |
1754 | ||
6ff3a151 | 1755 | fpack-struct |
c662432e | 1756 | Common Report Var(flag_pack_struct) Optimization |
f3fdaec4 | 1757 | Pack structure members together without holes |
6ff3a151 | 1758 | |
467cecf3 | 1759 | fpack-struct= |
c662432e | 1760 | Common RejectNegative Joined UInteger Optimization |
467cecf3 JB |
1761 | -fpack-struct=<number> Set initial maximum structure member alignment |
1762 | ||
de32c0cb | 1763 | fpcc-struct-return |
5498f011 | 1764 | Common Report Var(flag_pcc_struct_return,1) Init(DEFAULT_PCC_STRUCT_RETURN) |
f3fdaec4 | 1765 | Return small aggregates in memory, not registers |
de32c0cb NB |
1766 | |
1767 | fpeel-loops | |
c662432e | 1768 | Common Report Var(flag_peel_loops) Optimization |
f3fdaec4 | 1769 | Perform loop peeling |
de32c0cb NB |
1770 | |
1771 | fpeephole | |
c662432e | 1772 | Common Report Var(flag_no_peephole,0) Optimization |
f3fdaec4 | 1773 | Enable machine specific peephole optimizations |
de32c0cb | 1774 | |
6ff3a151 | 1775 | fpeephole2 |
c662432e | 1776 | Common Report Var(flag_peephole2) Optimization |
f3fdaec4 | 1777 | Enable an RTL peephole pass before sched2 |
6ff3a151 | 1778 | |
31b66477 | 1779 | fPIC |
da0aa2cc | 1780 | Common Report Var(flag_pic,2) Negative(fPIE) |
31b66477 KC |
1781 | Generate position-independent code if possible (large mode) |
1782 | ||
1783 | fPIE | |
428b3812 | 1784 | Common Report Var(flag_pie,2) Negative(fpic) Init(-1) |
31b66477 KC |
1785 | Generate position-independent code for executables if possible (large mode) |
1786 | ||
6ff3a151 | 1787 | fpic |
da0aa2cc | 1788 | Common Report Var(flag_pic,1) Negative(fpie) |
31b66477 | 1789 | Generate position-independent code if possible (small mode) |
6ff3a151 NB |
1790 | |
1791 | fpie | |
428b3812 | 1792 | Common Report Var(flag_pie,1) Negative(fPIC) Init(-1) |
31b66477 | 1793 | Generate position-independent code for executables if possible (small mode) |
6ff3a151 | 1794 | |
b91fd3c7 AM |
1795 | fplt |
1796 | Common Report Var(flag_plt) Init(1) Optimization | |
1797 | Use PLT for PIC calls (-fno-plt: load the address from GOT at call site) | |
1798 | ||
68a607d8 | 1799 | fplugin= |
21bf1558 | 1800 | Common Joined RejectNegative Var(common_deferred_options) Defer |
68a607d8 DN |
1801 | Specify a plugin to load |
1802 | ||
1803 | fplugin-arg- | |
21bf1558 | 1804 | Common Joined RejectNegative Var(common_deferred_options) Defer |
f94e1d66 | 1805 | -fplugin-arg-<name>-<key>[=<value>] Specify argument <key>=<value> for plugin <name> |
68a607d8 | 1806 | |
bbc8a8dc | 1807 | fpredictive-commoning |
6ae4be32 | 1808 | Common Report Var(flag_predictive_commoning) Optimization |
bbc8a8dc ZD |
1809 | Run predictive commoning optimization. |
1810 | ||
de32c0cb | 1811 | fprefetch-loop-arrays |
1fbb509a | 1812 | Common Report Var(flag_prefetch_loop_arrays) Init(-1) Optimization |
f3fdaec4 | 1813 | Generate prefetch instructions, if available, for arrays in loops |
de32c0cb | 1814 | |
6ff3a151 | 1815 | fprofile |
50431bc4 | 1816 | Common Report Var(profile_flag) |
f3fdaec4 | 1817 | Enable basic program profiling code |
6ff3a151 NB |
1818 | |
1819 | fprofile-arcs | |
50431bc4 | 1820 | Common Report Var(profile_arc_flag) |
f3fdaec4 | 1821 | Insert arc-based program profiling code |
6ff3a151 | 1822 | |
2f908293 | 1823 | fprofile-dir= |
0576d21f | 1824 | Common Joined RejectNegative Var(profile_data_prefix) |
2f908293 SP |
1825 | Set the top-level directory for storing the profile data. |
1826 | The default is 'pwd'. | |
1827 | ||
52c76998 PY |
1828 | fprofile-correction |
1829 | Common Report Var(flag_profile_correction) | |
1830 | Enable correction of flow inconsistent profile data input | |
1831 | ||
a8a5f53a JH |
1832 | fprofile-generate |
1833 | Common | |
1834 | Enable common options for generating profile info for profile feedback directed optimizations | |
1835 | ||
2f908293 SP |
1836 | fprofile-generate= |
1837 | Common Joined RejectNegative | |
1838 | Enable common options for generating profile info for profile feedback directed optimizations, and set -fprofile-dir= | |
1839 | ||
a8a5f53a | 1840 | fprofile-use |
2f908293 | 1841 | Common Var(flag_profile_use) |
a8a5f53a JH |
1842 | Enable common options for performing profile feedback directed optimizations |
1843 | ||
2f908293 SP |
1844 | fprofile-use= |
1845 | Common Joined RejectNegative | |
1846 | Enable common options for performing profile feedback directed optimizations, and set -fprofile-dir= | |
1847 | ||
fca9dc00 | 1848 | fprofile-values |
50431bc4 | 1849 | Common Report Var(flag_profile_values) |
fca9dc00 ZD |
1850 | Insert code to profile values of expressions |
1851 | ||
37e5402b JH |
1852 | fprofile-report |
1853 | Common Report Var(profile_report) | |
1854 | Report on consistency of profile | |
1855 | ||
9cec31f4 ML |
1856 | fprofile-reorder-functions |
1857 | Common Report Var(flag_profile_reorder_functions) | |
1858 | Enable function reordering that improves code placement | |
1859 | ||
de32c0cb | 1860 | frandom-seed |
299404a1 | 1861 | Common Var(common_deferred_options) Defer |
de32c0cb NB |
1862 | |
1863 | frandom-seed= | |
299404a1 | 1864 | Common Joined RejectNegative Var(common_deferred_options) Defer |
fd960af2 | 1865 | -frandom-seed=<number> Make compile reproducible using <number> |
de32c0cb | 1866 | |
e0d9d0dd NC |
1867 | ; This switch causes the command line that was used to create an |
1868 | ; object file to be recorded into the object file. The exact format | |
1869 | ; of this recording is target and binary file format dependent. | |
1870 | ; It is related to the -fverbose-asm switch, but that switch only | |
1871 | ; records information in the assembler output file as comments, so | |
1872 | ; they never reach the object file. | |
1873 | frecord-gcc-switches | |
1874 | Common Report Var(flag_record_gcc_switches) | |
1875 | Record gcc command line switches in the object file. | |
1876 | ||
de32c0cb | 1877 | freg-struct-return |
f0036cca | 1878 | Common Report Var(flag_pcc_struct_return,0) Optimization |
f3fdaec4 | 1879 | Return small aggregates in registers |
de32c0cb | 1880 | |
6ff3a151 | 1881 | fregmove |
3b6d1699 VM |
1882 | Common Ignore |
1883 | Does nothing. Preserved for backward compatibility. | |
6ff3a151 | 1884 | |
f522930c JM |
1885 | flifetime-dse |
1886 | Common Report Var(flag_lifetime_dse) Init(1) Optimization | |
1887 | Tell DSE that the storage for a C++ object is dead when the constructor | |
1888 | starts and when the destructor finishes. | |
1889 | ||
f20f2613 VM |
1890 | flive-range-shrinkage |
1891 | Common Report Var(flag_live_range_shrinkage) Init(0) Optimization | |
1892 | Relief of register pressure through live range shrinkage | |
1893 | ||
6ff3a151 | 1894 | frename-registers |
c662432e | 1895 | Common Report Var(flag_rename_registers) Init(2) Optimization |
f3fdaec4 | 1896 | Perform a register renaming optimization pass |
6ff3a151 | 1897 | |
b16abbcb BC |
1898 | fschedule-fusion |
1899 | Common Report Var(flag_schedule_fusion) Init(2) Optimization | |
1900 | Perform a target dependent instruction fusion optimization pass | |
1901 | ||
6ff3a151 | 1902 | freorder-blocks |
c662432e | 1903 | Common Report Var(flag_reorder_blocks) Optimization |
f3fdaec4 | 1904 | Reorder basic blocks to improve code placement |
6ff3a151 | 1905 | |
750054a2 | 1906 | freorder-blocks-and-partition |
c662432e | 1907 | Common Report Var(flag_reorder_blocks_and_partition) Optimization |
750054a2 CT |
1908 | Reorder basic blocks and partition into hot and cold sections |
1909 | ||
6ff3a151 | 1910 | freorder-functions |
c662432e | 1911 | Common Report Var(flag_reorder_functions) Optimization |
f3fdaec4 | 1912 | Reorder functions to improve code placement |
6ff3a151 | 1913 | |
de32c0cb | 1914 | frerun-cse-after-loop |
3020190e | 1915 | Common Report Var(flag_rerun_cse_after_loop) Optimization |
f3fdaec4 | 1916 | Add a common subexpression elimination pass after loop optimizations |
de32c0cb | 1917 | |
efa1cdf0 | 1918 | frerun-loop-opt |
2d2bd949 | 1919 | Common Ignore |
c0220ea4 | 1920 | Does nothing. Preserved for backward compatibility. |
efa1cdf0 | 1921 | |
039c3d42 | 1922 | frounding-math |
5e46b0c6 | 1923 | Common Report Var(flag_rounding_math) Optimization SetByCombined |
039c3d42 RS |
1924 | Disable optimizations that assume default FP rounding behavior |
1925 | ||
6ff3a151 | 1926 | fsched-interblock |
c662432e | 1927 | Common Report Var(flag_schedule_interblock) Init(1) Optimization |
f3fdaec4 | 1928 | Enable scheduling across basic blocks |
6ff3a151 | 1929 | |
ce18efcb VM |
1930 | fsched-pressure |
1931 | Common Report Var(flag_sched_pressure) Init(0) Optimization | |
1932 | Enable register pressure sensitive insn scheduling | |
1933 | ||
6ff3a151 | 1934 | fsched-spec |
c662432e | 1935 | Common Report Var(flag_schedule_speculative) Init(1) Optimization |
f3fdaec4 | 1936 | Allow speculative motion of non-loads |
6ff3a151 NB |
1937 | |
1938 | fsched-spec-load | |
c662432e | 1939 | Common Report Var(flag_schedule_speculative_load) Optimization |
f3fdaec4 | 1940 | Allow speculative motion of some loads |
6ff3a151 NB |
1941 | |
1942 | fsched-spec-load-dangerous | |
c662432e | 1943 | Common Report Var(flag_schedule_speculative_load_dangerous) Optimization |
f3fdaec4 | 1944 | Allow speculative motion of more loads |
6ff3a151 | 1945 | |
de32c0cb | 1946 | fsched-verbose= |
299404a1 | 1947 | Common RejectNegative Joined UInteger Var(sched_verbose_param) |
cf03fd63 | 1948 | -fsched-verbose=<number> Set the verbosity level of the scheduler |
de32c0cb | 1949 | |
6ff3a151 | 1950 | fsched2-use-superblocks |
c662432e | 1951 | Common Report Var(flag_sched2_use_superblocks) Optimization |
f3fdaec4 | 1952 | If scheduling post reload, do superblock scheduling |
6ff3a151 NB |
1953 | |
1954 | fsched2-use-traces | |
2d2bd949 | 1955 | Common Ignore |
57257f0d | 1956 | Does nothing. Preserved for backward compatibility. |
6ff3a151 | 1957 | |
de32c0cb | 1958 | fschedule-insns |
c662432e | 1959 | Common Report Var(flag_schedule_insns) Optimization |
f3fdaec4 | 1960 | Reschedule instructions before register allocation |
de32c0cb NB |
1961 | |
1962 | fschedule-insns2 | |
c662432e | 1963 | Common Report Var(flag_schedule_insns_after_reload) Optimization |
f3fdaec4 | 1964 | Reschedule instructions after register allocation |
de32c0cb | 1965 | |
e855c69d AB |
1966 | ; This flag should be on when a target implements non-trivial |
1967 | ; scheduling hooks, maybe saving some information for its own sake. | |
1968 | ; On IA64, for example, this is used for correct bundling. | |
1969 | fselective-scheduling | |
1970 | Common Report Var(flag_selective_scheduling) Optimization | |
1971 | Schedule instructions using selective scheduling algorithm | |
1972 | ||
1973 | fselective-scheduling2 | |
1974 | Common Report Var(flag_selective_scheduling2) Optimization | |
1975 | Run selective scheduling after reload | |
1976 | ||
1977 | fsel-sched-pipelining | |
1978 | Common Report Var(flag_sel_sched_pipelining) Init(0) Optimization | |
1979 | Perform software pipelining of inner loops during selective scheduling | |
1980 | ||
1981 | fsel-sched-pipelining-outer-loops | |
1982 | Common Report Var(flag_sel_sched_pipelining_outer_loops) Init(0) Optimization | |
1983 | Perform software pipelining of outer loops during selective scheduling | |
1984 | ||
1985 | fsel-sched-reschedule-pipelined | |
1986 | Common Report Var(flag_sel_sched_reschedule_pipelined) Init(0) Optimization | |
1987 | Reschedule pipelined regions without pipelining | |
1988 | ||
e288a46c JH |
1989 | fsemantic-interposition |
1990 | Common Report Var(flag_semantic_interposition) Init(1) | |
1991 | Allow interposing function (or variables) by ones with different semantics (or initializer) respectively by dynamic linker | |
1992 | ||
31b66477 KC |
1993 | ; sched_stalled_insns means that insns can be moved prematurely from the queue |
1994 | ; of stalled insns into the ready list. | |
569fa502 | 1995 | fsched-stalled-insns |
ab442df7 | 1996 | Common Report Var(flag_sched_stalled_insns) Optimization UInteger |
569fa502 DN |
1997 | Allow premature scheduling of queued insns |
1998 | ||
1999 | fsched-stalled-insns= | |
b16650ac | 2000 | Common RejectNegative Joined UInteger Optimization |
4e994432 | 2001 | -fsched-stalled-insns=<number> Set number of queued insns that can be prematurely scheduled |
569fa502 | 2002 | |
31b66477 KC |
2003 | ; sched_stalled_insns_dep controls how many recently scheduled cycles will |
2004 | ; be examined for a dependency on a stalled insn that is candidate for | |
2005 | ; premature removal from the queue of stalled insns into the ready list (has | |
2006 | ; an effect only if the flag 'sched_stalled_insns' is set). | |
569fa502 | 2007 | fsched-stalled-insns-dep |
ab442df7 | 2008 | Common Report Var(flag_sched_stalled_insns_dep,1) Init(1) Optimization UInteger |
569fa502 DN |
2009 | Set dependence distance checking in premature scheduling of queued insns |
2010 | ||
2011 | fsched-stalled-insns-dep= | |
b16650ac | 2012 | Common RejectNegative Joined UInteger Optimization |
4e994432 | 2013 | -fsched-stalled-insns-dep=<number> Set dependence distance checking in premature scheduling of queued insns |
569fa502 | 2014 | |
ee4764a8 GS |
2015 | fsched-group-heuristic |
2016 | Common Report Var(flag_sched_group_heuristic) Init(1) Optimization | |
2017 | Enable the group heuristic in the scheduler | |
2018 | ||
2019 | fsched-critical-path-heuristic | |
2020 | Common Report Var(flag_sched_critical_path_heuristic) Init(1) Optimization | |
2021 | Enable the critical path heuristic in the scheduler | |
2022 | ||
2023 | fsched-spec-insn-heuristic | |
2024 | Common Report Var(flag_sched_spec_insn_heuristic) Init(1) Optimization | |
2025 | Enable the speculative instruction heuristic in the scheduler | |
2026 | ||
ee4764a8 GS |
2027 | fsched-rank-heuristic |
2028 | Common Report Var(flag_sched_rank_heuristic) Init(1) Optimization | |
2029 | Enable the rank heuristic in the scheduler | |
2030 | ||
2031 | fsched-last-insn-heuristic | |
2032 | Common Report Var(flag_sched_last_insn_heuristic) Init(1) Optimization | |
2033 | Enable the last instruction heuristic in the scheduler | |
2034 | ||
2035 | fsched-dep-count-heuristic | |
2036 | Common Report Var(flag_sched_dep_count_heuristic) Init(1) Optimization | |
2037 | Enable the dependent count heuristic in the scheduler | |
2038 | ||
aacd3885 | 2039 | fsection-anchors |
c662432e | 2040 | Common Report Var(flag_section_anchors) Optimization |
aacd3885 RS |
2041 | Access data in the same section from shared anchor points |
2042 | ||
8cd37d0b | 2043 | fsee |
2d2bd949 | 2044 | Common Ignore |
8393a9c8 | 2045 | Does nothing. Preserved for backward compatibility. |
8cd37d0b | 2046 | |
87a0ebfd | 2047 | fzee |
26cd9add EI |
2048 | Common Ignore |
2049 | Does nothing. Preserved for backward compatibility. | |
2050 | ||
2051 | free | |
2052 | Common Report Var(flag_ree) Init(0) | |
2053 | Turn on Redundant Extensions Elimination pass. | |
87a0ebfd | 2054 | |
8abb6b22 | 2055 | fshow-column |
1cb42611 | 2056 | Common Report Var(flag_show_column) Init(1) |
e74fe492 | 2057 | Show column numbers in diagnostics, when available. Default on |
8abb6b22 | 2058 | |
484db665 BS |
2059 | fshrink-wrap |
2060 | Common Report Var(flag_shrink_wrap) Optimization | |
2061 | Emit function prologues only before parts of the function that need it, | |
2062 | rather than at the top of the function. | |
2063 | ||
6ff3a151 | 2064 | fsignaling-nans |
5e46b0c6 | 2065 | Common Report Var(flag_signaling_nans) Optimization SetByCombined |
f3fdaec4 | 2066 | Disable optimizations observable by IEEE signaling NaNs |
6ff3a151 | 2067 | |
db02da79 | 2068 | fsigned-zeros |
5e46b0c6 | 2069 | Common Report Var(flag_signed_zeros) Init(1) Optimization SetByCombined |
db02da79 RS |
2070 | Disable floating point optimizations that ignore the IEEE signedness of zero |
2071 | ||
6ff3a151 | 2072 | fsingle-precision-constant |
c662432e | 2073 | Common Report Var(flag_single_precision_constant) Optimization |
f3fdaec4 | 2074 | Convert floating point constants to single precision constants |
6ff3a151 | 2075 | |
113d659a | 2076 | fsplit-ivs-in-unroller |
c662432e | 2077 | Common Report Var(flag_split_ivs_in_unroller) Init(1) Optimization |
c85ce869 | 2078 | Split lifetimes of induction variables when loops are unrolled |
113d659a | 2079 | |
7458026b ILT |
2080 | fsplit-stack |
2081 | Common Report Var(flag_split_stack) Init(-1) | |
2082 | Generate discontiguous stack frames | |
2083 | ||
e53a16e7 | 2084 | fsplit-wide-types |
21af5cdf | 2085 | Common Report Var(flag_split_wide_types) Optimization |
e53a16e7 ILT |
2086 | Split wide types into independent registers |
2087 | ||
68f6df73 RB |
2088 | fssa-phiopt |
2089 | Common Report Var(flag_ssa_phiopt) Optimization | |
2090 | Optimize conditional patterns using SSA PHI nodes | |
2091 | ||
98ce9490 TV |
2092 | fstdarg-opt |
2093 | Common Report Var(flag_stdarg_opt) Init(1) Optimization | |
2094 | Optimize amount of stdarg registers saved to stack at start of function | |
2095 | ||
f37a4f14 | 2096 | fvariable-expansion-in-unroller |
c662432e | 2097 | Common Report Var(flag_variable_expansion_in_unroller) Optimization |
c85ce869 | 2098 | Apply variable expansion when loops are unrolled |
f37a4f14 | 2099 | |
b38f3813 EB |
2100 | fstack-check= |
2101 | Common Report RejectNegative Joined | |
2102 | -fstack-check=[no|generic|specific] Insert stack checking code into the program | |
2103 | ||
6ff3a151 | 2104 | fstack-check |
5de8299c | 2105 | Common Alias(fstack-check=, specific, no) |
b38f3813 | 2106 | Insert stack checking code into the program. Same as -fstack-check=specific |
6ff3a151 | 2107 | |
de32c0cb | 2108 | fstack-limit |
21bf1558 | 2109 | Common Var(common_deferred_options) Defer |
de32c0cb | 2110 | |
058de654 | 2111 | fstack-limit-register= |
21bf1558 | 2112 | Common RejectNegative Joined Var(common_deferred_options) Defer |
cf03fd63 | 2113 | -fstack-limit-register=<register> Trap if the stack goes past <register> |
058de654 NB |
2114 | |
2115 | fstack-limit-symbol= | |
21bf1558 | 2116 | Common RejectNegative Joined Var(common_deferred_options) Defer |
cf03fd63 | 2117 | -fstack-limit-symbol=<name> Trap if the stack goes past symbol <name> |
058de654 | 2118 | |
7d69de61 RH |
2119 | fstack-protector |
2120 | Common Report Var(flag_stack_protect, 1) | |
2121 | Use propolice as a stack protection method | |
2122 | ||
2123 | fstack-protector-all | |
f0036cca | 2124 | Common Report RejectNegative Var(flag_stack_protect, 2) |
7d69de61 RH |
2125 | Use a stack protection method for every function |
2126 | ||
f6bc1c4a HS |
2127 | fstack-protector-strong |
2128 | Common Report RejectNegative Var(flag_stack_protect, 3) | |
2129 | Use a smart stack protection method for certain functions | |
2130 | ||
5434dc07 MD |
2131 | fstack-protector-explicit |
2132 | Common Report RejectNegative Var(flag_stack_protect, 4) | |
2133 | Use stack protection method only for functions with the stack_protect attribute | |
2134 | ||
d3c12306 EB |
2135 | fstack-usage |
2136 | Common RejectNegative Var(flag_stack_usage) | |
2137 | Output stack usage information on a per-function basis | |
2138 | ||
de32c0cb | 2139 | fstrength-reduce |
2d2bd949 | 2140 | Common Ignore |
c0220ea4 | 2141 | Does nothing. Preserved for backward compatibility. |
de32c0cb | 2142 | |
31b66477 KC |
2143 | ; Nonzero if we should do (language-dependent) alias analysis. |
2144 | ; Typically, this analysis will assume that expressions of certain | |
2145 | ; types do not alias expressions of certain other types. Only used | |
2146 | ; if alias analysis (in general) is enabled. | |
6ff3a151 | 2147 | fstrict-aliasing |
c662432e | 2148 | Common Report Var(flag_strict_aliasing) Optimization |
f3fdaec4 | 2149 | Assume strict aliasing rules apply |
6ff3a151 | 2150 | |
eeef0e45 | 2151 | fstrict-overflow |
b16650ac | 2152 | Common Report Var(flag_strict_overflow) Optimization |
eeef0e45 ILT |
2153 | Treat signed overflow as undefined |
2154 | ||
e8053cf5 RH |
2155 | fsync-libcalls |
2156 | Common Report Var(flag_sync_libcalls) Init(1) | |
2157 | Implement __atomic operations via libcalls to legacy __sync functions | |
2158 | ||
de32c0cb | 2159 | fsyntax-only |
50431bc4 | 2160 | Common Report Var(flag_syntax_only) |
f3fdaec4 | 2161 | Check for syntax errors, then stop |
de32c0cb | 2162 | |
6ff3a151 | 2163 | ftest-coverage |
50431bc4 | 2164 | Common Report Var(flag_test_coverage) |
f3fdaec4 | 2165 | Create data files needed by \"gcov\" |
6ff3a151 | 2166 | |
de32c0cb | 2167 | fthread-jumps |
c662432e | 2168 | Common Report Var(flag_thread_jumps) Optimization |
f3fdaec4 | 2169 | Perform jump threading optimizations |
de32c0cb | 2170 | |
6ff3a151 | 2171 | ftime-report |
50431bc4 | 2172 | Common Report Var(time_report) |
f3fdaec4 | 2173 | Report the time taken by each compiler pass |
6ff3a151 | 2174 | |
058de654 | 2175 | ftls-model= |
e6d4b984 | 2176 | Common Joined RejectNegative Enum(tls_model) Var(flag_tls_default) Init(TLS_MODEL_GLOBAL_DYNAMIC) |
cf03fd63 | 2177 | -ftls-model=[global-dynamic|local-dynamic|initial-exec|local-exec] Set the default thread-local storage code generation model |
058de654 | 2178 | |
e6d4b984 JM |
2179 | Enum |
2180 | Name(tls_model) Type(enum tls_model) UnknownError(unknown TLS model %qs) | |
2181 | ||
2182 | EnumValue | |
2183 | Enum(tls_model) String(global-dynamic) Value(TLS_MODEL_GLOBAL_DYNAMIC) | |
2184 | ||
2185 | EnumValue | |
2186 | Enum(tls_model) String(local-dynamic) Value(TLS_MODEL_LOCAL_DYNAMIC) | |
2187 | ||
2188 | EnumValue | |
2189 | Enum(tls_model) String(initial-exec) Value(TLS_MODEL_INITIAL_EXEC) | |
2190 | ||
2191 | EnumValue | |
2192 | Enum(tls_model) String(local-exec) Value(TLS_MODEL_LOCAL_EXEC) | |
2193 | ||
474eccc6 | 2194 | ftoplevel-reorder |
b16650ac | 2195 | Common Report Var(flag_toplevel_reorder) Init(2) |
474eccc6 ILT |
2196 | Reorder top level functions, variables, and asms |
2197 | ||
de32c0cb | 2198 | ftracer |
b16650ac | 2199 | Common Report Var(flag_tracer) Optimization |
f3fdaec4 | 2200 | Perform superblock formation via tail duplication |
de32c0cb | 2201 | |
31b66477 KC |
2202 | ; Zero means that floating-point math operations cannot generate a |
2203 | ; (user-visible) trap. This is the case, for example, in nonstop | |
2204 | ; IEEE 754 arithmetic. | |
6ff3a151 | 2205 | ftrapping-math |
5e46b0c6 | 2206 | Common Report Var(flag_trapping_math) Init(1) Optimization SetByCombined |
f3fdaec4 | 2207 | Assume floating-point operations can trap |
6ff3a151 NB |
2208 | |
2209 | ftrapv | |
c662432e | 2210 | Common Report Var(flag_trapv) Optimization |
f3fdaec4 | 2211 | Trap for signed overflow in addition, subtraction and multiplication |
6ff3a151 | 2212 | |
6de9cd9a | 2213 | ftree-ccp |
c662432e | 2214 | Common Report Var(flag_tree_ccp) Optimization |
6de9cd9a DN |
2215 | Enable SSA-CCP optimization on trees |
2216 | ||
0b4b14ac RG |
2217 | ftree-bit-ccp |
2218 | Common Report Var(flag_tree_bit_ccp) Optimization | |
2219 | Enable SSA-BIT-CCP optimization on trees | |
2220 | ||
0bca51f0 | 2221 | ftree-store-ccp |
2d2bd949 | 2222 | Common Ignore |
dce2b2f6 | 2223 | Does nothing. Preserved for backward compatibility. |
0bca51f0 | 2224 | |
6de9cd9a | 2225 | ftree-ch |
c662432e | 2226 | Common Report Var(flag_tree_ch) Optimization |
6de9cd9a DN |
2227 | Enable loop header copying on trees |
2228 | ||
21d01365 | 2229 | ftree-coalesce-inlined-vars |
0f9f9784 AO |
2230 | Common Report Var(flag_ssa_coalesce_vars,1) Init(2) RejectNegative Optimization |
2231 | Enable coalescing of copy-related user variables that are inlined | |
21d01365 AO |
2232 | |
2233 | ftree-coalesce-vars | |
0f9f9784 AO |
2234 | Common Report Var(flag_ssa_coalesce_vars,2) Optimization |
2235 | Enable coalescing of all copy-related user variables | |
21d01365 | 2236 | |
6de9cd9a | 2237 | ftree-copyrename |
0f9f9784 AO |
2238 | Common Report Var(flag_tree_copyrename) Optimization |
2239 | Replace SSA temporaries with better names in copies | |
6de9cd9a | 2240 | |
0bca51f0 | 2241 | ftree-copy-prop |
c662432e | 2242 | Common Report Var(flag_tree_copy_prop) Optimization |
0bca51f0 DN |
2243 | Enable copy propagation on trees |
2244 | ||
2245 | ftree-store-copy-prop | |
2d2bd949 | 2246 | Common Ignore |
e9033855 | 2247 | Does nothing. Preserved for backward compatibility. |
0bca51f0 | 2248 | |
a5828d1e MM |
2249 | ftree-cselim |
2250 | Common Report Var(flag_tree_cselim) Init(2) Optimization | |
2251 | Transform condition stores into unconditional ones | |
2252 | ||
b6e99746 MJ |
2253 | ftree-switch-conversion |
2254 | Common Report Var(flag_tree_switch_conversion) Optimization | |
2255 | Perform conversions of switch initializations. | |
2256 | ||
6de9cd9a | 2257 | ftree-dce |
c662432e | 2258 | Common Report Var(flag_tree_dce) Optimization |
6de9cd9a DN |
2259 | Enable SSA dead code elimination optimization on trees |
2260 | ||
2261 | ftree-dominator-opts | |
c662432e | 2262 | Common Report Var(flag_tree_dom) Optimization |
6de9cd9a DN |
2263 | Enable dominator optimizations |
2264 | ||
c9e93168 TV |
2265 | ftree-tail-merge |
2266 | Common Report Var(flag_tree_tail_merge) Optimization | |
2267 | Enable tail merging on trees | |
2268 | ||
6de9cd9a | 2269 | ftree-dse |
c662432e | 2270 | Common Report Var(flag_tree_dse) Optimization |
6de9cd9a DN |
2271 | Enable dead store elimination |
2272 | ||
248fc9f3 RG |
2273 | ftree-forwprop |
2274 | Common Report Var(flag_tree_forwprop) Init(1) Optimization | |
2275 | Enable forward propagation on trees | |
2276 | ||
ff2ad0f7 | 2277 | ftree-fre |
c662432e | 2278 | Common Report Var(flag_tree_fre) Optimization |
ff2ad0f7 DN |
2279 | Enable Full Redundancy Elimination (FRE) on trees |
2280 | ||
8b57bfeb JJ |
2281 | foptimize-strlen |
2282 | Common Report Var(flag_optimize_strlen) Optimization | |
2283 | Enable string length optimizations on trees | |
2284 | ||
ae93744d JL |
2285 | fisolate-erroneous-paths-dereference |
2286 | Common Report Var(flag_isolate_erroneous_paths_dereference) Optimization | |
408e8aa4 SL |
2287 | Detect paths that trigger erroneous or undefined behavior due to |
2288 | dereferencing a null pointer. Isolate those paths from the main control | |
2289 | flow and turn the statement with erroneous or undefined behavior into a trap. | |
ae93744d JL |
2290 | |
2291 | fisolate-erroneous-paths-attribute | |
2292 | Common Report Var(flag_isolate_erroneous_paths_attribute) Optimization | |
408e8aa4 SL |
2293 | Detect paths that trigger erroneous or undefined behavior due a null value |
2294 | being used in a way forbidden by a returns_nonnull or nonnull | |
ae93744d | 2295 | attribute. Isolate those paths from the main control flow and turn the |
408e8aa4 | 2296 | statement with erroneous or undefined behavior into a trap. |
8fdc414d | 2297 | |
dea61d92 | 2298 | ftree-loop-distribution |
53ed2f0e | 2299 | Common Report Var(flag_tree_loop_distribution) Optimization |
dea61d92 SP |
2300 | Enable loop distribution on trees |
2301 | ||
20769d5e SP |
2302 | ftree-loop-distribute-patterns |
2303 | Common Report Var(flag_tree_loop_distribute_patterns) Optimization | |
2304 | Enable loop distribution for patterns transformed into a library call | |
2305 | ||
1b08d87d | 2306 | ftree-loop-im |
c662432e | 2307 | Common Report Var(flag_tree_loop_im) Init(1) Optimization |
a7e5372d ZD |
2308 | Enable loop invariant motion on trees |
2309 | ||
599eabdb | 2310 | ftree-loop-linear |
7633415c SP |
2311 | Common Alias(floop-interchange) |
2312 | Enable loop interchange transforms. Same as -floop-interchange | |
599eabdb | 2313 | |
1b08d87d | 2314 | ftree-loop-ivcanon |
c662432e | 2315 | Common Report Var(flag_tree_loop_ivcanon) Init(1) Optimization |
1b08d87d DB |
2316 | Create canonical induction variables in loops |
2317 | ||
c66b6c66 | 2318 | ftree-loop-optimize |
c662432e | 2319 | Common Report Var(flag_tree_loop_optimize) Init(1) Optimization |
c66b6c66 ZD |
2320 | Enable loop optimizations on tree level |
2321 | ||
5f40b3cb | 2322 | ftree-parallelize-loops= |
b16650ac | 2323 | Common Report Joined RejectNegative UInteger Var(flag_tree_parallelize_loops) Init(1) Optimization |
5f40b3cb ZD |
2324 | Enable automatic parallelization of loops |
2325 | ||
248fc9f3 RG |
2326 | ftree-phiprop |
2327 | Common Report Var(flag_tree_phiprop) Init(1) Optimization | |
2328 | Enable hoisting loads from conditional pointers. | |
2329 | ||
6de9cd9a | 2330 | ftree-pre |
c662432e | 2331 | Common Report Var(flag_tree_pre) Optimization |
6de9cd9a DN |
2332 | Enable SSA-PRE optimization on trees |
2333 | ||
fa06ad0d JR |
2334 | ftree-partial-pre |
2335 | Common Report Var(flag_tree_partial_pre) Optimization | |
2336 | In SSA-PRE optimization on trees, enable partial-partial redundancy elimination | |
2337 | ||
248fc9f3 | 2338 | ftree-pta |
14379e66 | 2339 | Common Report Var(flag_tree_pta) Optimization |
248fc9f3 RG |
2340 | Perform function-local points-to analysis on trees. |
2341 | ||
13c59415 UB |
2342 | ftree-reassoc |
2343 | Common Report Var(flag_tree_reassoc) Init(1) Optimization | |
2344 | Enable reassociation on tree level | |
2345 | ||
c75ab022 | 2346 | ftree-salias |
2d2bd949 | 2347 | Common Ignore |
1353232d | 2348 | Does nothing. Preserved for backward compatibility. |
c75ab022 | 2349 | |
fa555252 | 2350 | ftree-sink |
c662432e | 2351 | Common Report Var(flag_tree_sink) Optimization |
fa555252 DB |
2352 | Enable SSA code sinking on trees |
2353 | ||
75cfe445 BS |
2354 | ftree-slsr |
2355 | Common Report Var(flag_tree_slsr) Optimization | |
2356 | Perform straight-line strength reduction | |
2357 | ||
6de9cd9a | 2358 | ftree-sra |
c662432e | 2359 | Common Report Var(flag_tree_sra) Optimization |
6de9cd9a DN |
2360 | Perform scalar replacement of aggregates |
2361 | ||
2362 | ftree-ter | |
3020190e | 2363 | Common Report Var(flag_tree_ter) Optimization |
6de9cd9a DN |
2364 | Replace temporary expressions in the SSA->normal pass |
2365 | ||
c662432e NC |
2366 | ftree-lrs |
2367 | Common Report Var(flag_tree_live_range_split) Optimization | |
2368 | Perform live range splitting during the SSA->normal pass | |
2369 | ||
0bca51f0 | 2370 | ftree-vrp |
c662432e | 2371 | Common Report Var(flag_tree_vrp) Init(0) Optimization |
0bca51f0 DN |
2372 | Perform Value Range Propagation on trees |
2373 | ||
de32c0cb | 2374 | funit-at-a-time |
b16650ac | 2375 | Common Report Var(flag_unit_at_a_time) Init(1) |
f3fdaec4 | 2376 | Compile whole compilation unit at a time |
de32c0cb NB |
2377 | |
2378 | funroll-loops | |
c662432e | 2379 | Common Report Var(flag_unroll_loops) Optimization |
f3fdaec4 | 2380 | Perform loop unrolling when iteration count is known |
de32c0cb NB |
2381 | |
2382 | funroll-all-loops | |
c662432e | 2383 | Common Report Var(flag_unroll_all_loops) Optimization |
f3fdaec4 | 2384 | Perform loop unrolling for all loops |
de32c0cb | 2385 | |
f9cc1a70 PB |
2386 | ; Nonzero means that loop optimizer may assume that the induction variables |
2387 | ; that control loops do not overflow and that the loops with nontrivial | |
2388 | ; exit condition are not infinite | |
2389 | funsafe-loop-optimizations | |
c662432e | 2390 | Common Report Var(flag_unsafe_loop_optimizations) Optimization |
f9cc1a70 PB |
2391 | Allow loop optimizations to assume that the loops behave in normal way |
2392 | ||
a1a82611 | 2393 | fassociative-math |
b16650ac | 2394 | Common Report Var(flag_associative_math) SetByCombined Optimization |
a1a82611 RE |
2395 | Allow optimization for floating-point arithmetic which may change the |
2396 | result of the operation due to rounding. | |
2397 | ||
2398 | freciprocal-math | |
b16650ac | 2399 | Common Report Var(flag_reciprocal_math) SetByCombined Optimization |
a1a82611 RE |
2400 | Same as -fassociative-math for expressions which include division. |
2401 | ||
31b66477 KC |
2402 | ; Nonzero means that unsafe floating-point math optimizations are allowed |
2403 | ; for the sake of speed. IEEE compliance is not guaranteed, and operations | |
2404 | ; are allowed to assume that their arguments and results are "normal" | |
2405 | ; (e.g., nonnegative for SQRT). | |
6ff3a151 | 2406 | funsafe-math-optimizations |
5e46b0c6 | 2407 | Common Report Var(flag_unsafe_math_optimizations) Optimization SetByCombined |
f3fdaec4 | 2408 | Allow math optimizations that may violate IEEE or ISO standards |
6ff3a151 | 2409 | |
de32c0cb | 2410 | funswitch-loops |
c662432e | 2411 | Common Report Var(flag_unswitch_loops) Optimization |
f3fdaec4 | 2412 | Perform loop unswitching |
de32c0cb | 2413 | |
6ff3a151 | 2414 | funwind-tables |
c662432e | 2415 | Common Report Var(flag_unwind_tables) Optimization |
f3fdaec4 | 2416 | Just generate unwind tables for exception handling |
6ff3a151 | 2417 | |
b352afba | 2418 | fuse-ld=bfd |
b78e932d | 2419 | Common Driver Negative(fuse-ld=gold) |
b352afba NC |
2420 | Use the bfd linker instead of the default linker |
2421 | ||
2422 | fuse-ld=gold | |
b78e932d | 2423 | Common Driver Negative(fuse-ld=bfd) |
b352afba NC |
2424 | Use the gold linker instead of the default linker |
2425 | ||
da18ea94 | 2426 | fuse-linker-plugin |
063d671d | 2427 | Common Undocumented Var(flag_use_linker_plugin) |
da18ea94 | 2428 | |
e90afde6 JM |
2429 | ; Positive if we should track variables, negative if we should run |
2430 | ; the var-tracking pass only to discard debug annotations, zero if | |
2431 | ; we're not to run it. When flag_var_tracking == 2 (AUTODETECT_VALUE) it | |
2432 | ; will be set according to optimize, debug_info_level and debug_hooks | |
2433 | ; in process_options (). | |
014a1138 | 2434 | fvar-tracking |
e90afde6 | 2435 | Common Report Var(flag_var_tracking) Init(2) Optimization |
014a1138 JZ |
2436 | Perform variable tracking |
2437 | ||
e90afde6 JM |
2438 | ; Positive if we should track variables at assignments, negative if |
2439 | ; we should run the var-tracking pass only to discard debug | |
2440 | ; annotations. When flag_var_tracking_assignments == | |
2441 | ; AUTODETECT_VALUE it will be set according to flag_var_tracking. | |
b5b8b0ac | 2442 | fvar-tracking-assignments |
e90afde6 | 2443 | Common Report Var(flag_var_tracking_assignments) Init(2) Optimization |
b5b8b0ac AO |
2444 | Perform variable tracking by annotating assignments |
2445 | ||
e90afde6 JM |
2446 | ; Nonzero if we should toggle flag_var_tracking_assignments after |
2447 | ; processing options and computing its default. */ | |
b5b8b0ac | 2448 | fvar-tracking-assignments-toggle |
e90afde6 | 2449 | Common Report Var(flag_var_tracking_assignments_toggle) Optimization |
b5b8b0ac AO |
2450 | Toggle -fvar-tracking-assignments |
2451 | ||
1267ca30 EB |
2452 | ; Positive if we should track uninitialized variables, negative if |
2453 | ; we should run the var-tracking pass only to discard debug | |
2454 | ; annotations. When flag_var_tracking_uninit == AUTODETECT_VALUE it | |
2455 | ; will be set according to flag_var_tracking. | |
62760ffd CT |
2456 | fvar-tracking-uninit |
2457 | Common Report Var(flag_var_tracking_uninit) Optimization | |
2458 | Perform variable tracking and also tag variables that are uninitialized | |
2459 | ||
79fe1b3b | 2460 | ftree-vectorize |
c662432e | 2461 | Common Report Var(flag_tree_vectorize) Optimization |
ea0f3e87 | 2462 | Enable vectorization on trees |
79fe1b3b | 2463 | |
78c60e3d | 2464 | ftree-vectorizer-verbose= |
477e804b SS |
2465 | Common Joined RejectNegative Ignore |
2466 | Does nothing. Preserved for backward compatibility. | |
78c60e3d | 2467 | |
ea0f3e87 XDL |
2468 | ftree-loop-vectorize |
2469 | Common Report Var(flag_tree_loop_vectorize) Optimization | |
2470 | Enable loop vectorization on trees | |
2471 | ||
a70d6342 | 2472 | ftree-slp-vectorize |
ea0f3e87 | 2473 | Common Report Var(flag_tree_slp_vectorize) Optimization |
a70d6342 IR |
2474 | Enable basic block vectorization (SLP) on trees |
2475 | ||
d6d11272 | 2476 | fvect-cost-model= |
b16650ac | 2477 | Common Joined RejectNegative Enum(vect_cost_model) Var(flag_vect_cost_model) Init(VECT_COST_MODEL_DEFAULT) Optimization |
d6d11272 XDL |
2478 | Specifies the cost model for vectorization |
2479 | ||
8b5e1202 | 2480 | fsimd-cost-model= |
b16650ac | 2481 | Common Joined RejectNegative Enum(vect_cost_model) Var(flag_simd_cost_model) Init(VECT_COST_MODEL_UNLIMITED) Optimization |
8b5e1202 SO |
2482 | Specifies the vectorization cost model for code marked with a simd directive |
2483 | ||
d6d11272 XDL |
2484 | Enum |
2485 | Name(vect_cost_model) Type(enum vect_cost_model) UnknownError(unknown vectorizer cost model %qs) | |
2486 | ||
2487 | EnumValue | |
2488 | Enum(vect_cost_model) String(unlimited) Value(VECT_COST_MODEL_UNLIMITED) | |
2489 | ||
2490 | EnumValue | |
2491 | Enum(vect_cost_model) String(dynamic) Value(VECT_COST_MODEL_DYNAMIC) | |
2492 | ||
2493 | EnumValue | |
2494 | Enum(vect_cost_model) String(cheap) Value(VECT_COST_MODEL_CHEAP) | |
2495 | ||
792ed98b | 2496 | fvect-cost-model |
d6d11272 XDL |
2497 | Common RejectNegative Alias(fvect-cost-model=,dynamic) |
2498 | Enables the dynamic vectorizer cost model. Preserved for backward compatibility. | |
2499 | ||
2500 | fno-vect-cost-model | |
2501 | Common RejectNegative Alias(fvect-cost-model=,unlimited) | |
2502 | Enables the unlimited vectorizer cost model. Preserved for backward compatibility. | |
792ed98b | 2503 | |
c12cc930 | 2504 | ftree-vect-loop-version |
d6d11272 XDL |
2505 | Common Ignore |
2506 | Does nothing. Preserved for backward compatibility. | |
c12cc930 | 2507 | |
fbf798fc | 2508 | ftree-scev-cprop |
21af5cdf | 2509 | Common Report Var(flag_tree_scev_cprop) Init(1) Optimization |
fbf798fc DN |
2510 | Enable copy propagation of scalar-evolution information. |
2511 | ||
31b66477 KC |
2512 | ; -fverbose-asm causes extra commentary information to be produced in |
2513 | ; the generated assembly code (to make it more readable). This option | |
2514 | ; is generally only of use to those who actually need to read the | |
2515 | ; generated assembly code (perhaps while debugging the compiler itself). | |
2516 | ; -fno-verbose-asm, the default, causes the extra information | |
2517 | ; to not be added and is useful when comparing two assembler files. | |
6ff3a151 | 2518 | fverbose-asm |
50431bc4 | 2519 | Common Report Var(flag_verbose_asm) |
f3fdaec4 | 2520 | Add extra commentary to assembler output |
6ff3a151 | 2521 | |
d7afec4b | 2522 | fvisibility= |
e6d4b984 | 2523 | Common Joined RejectNegative Enum(symbol_visibility) Var(default_visibility) Init(VISIBILITY_DEFAULT) |
d7afec4b ND |
2524 | -fvisibility=[default|internal|hidden|protected] Set the default symbol visibility |
2525 | ||
e6d4b984 JM |
2526 | Enum |
2527 | Name(symbol_visibility) Type(enum symbol_visibility) UnknownError(unrecognized visibility value %qs) | |
2528 | ||
2529 | EnumValue | |
2530 | Enum(symbol_visibility) String(default) Value(VISIBILITY_DEFAULT) | |
2531 | ||
2532 | EnumValue | |
2533 | Enum(symbol_visibility) String(internal) Value(VISIBILITY_INTERNAL) | |
2534 | ||
2535 | EnumValue | |
2536 | Enum(symbol_visibility) String(hidden) Value(VISIBILITY_HIDDEN) | |
2537 | ||
2538 | EnumValue | |
2539 | Enum(symbol_visibility) String(protected) Value(VISIBILITY_PROTECTED) | |
d7afec4b | 2540 | |
2077db1b CT |
2541 | fvtable-verify= |
2542 | Common Joined RejectNegative Enum(vtv_priority) Var(flag_vtable_verify) Init(VTV_NO_PRIORITY) | |
2543 | Validate vtable pointers before using them. | |
2544 | ||
2545 | Enum | |
2546 | Name(vtv_priority) Type(enum vtv_priority) UnknownError(unknown vtable verify initialization priority %qs) | |
2547 | ||
2548 | EnumValue | |
2549 | Enum(vtv_priority) String(none) Value(VTV_NO_PRIORITY) | |
2550 | ||
2551 | EnumValue | |
2552 | Enum(vtv_priority) String(std) Value(VTV_STANDARD_PRIORITY) | |
2553 | ||
2554 | EnumValue | |
2555 | Enum(vtv_priority) String(preinit) Value(VTV_PREINIT_PRIORITY) | |
2556 | ||
2557 | fvtv-counts | |
2558 | Common Var(flag_vtv_counts) | |
2559 | Output vtable verification counters. | |
2560 | ||
2561 | fvtv-debug | |
2562 | Common Var(flag_vtv_debug) | |
2563 | Output vtable verification pointer sets information. | |
2564 | ||
fca9dc00 | 2565 | fvpt |
c662432e | 2566 | Common Report Var(flag_value_profile_transformations) Optimization |
fca9dc00 ZD |
2567 | Use expression value profiles in optimizations |
2568 | ||
62551c66 | 2569 | fweb |
c662432e | 2570 | Common Report Var(flag_web) Init(2) Optimization |
62551c66 JH |
2571 | Construct webs and split unrelated uses of single variable |
2572 | ||
c2699190 XDL |
2573 | ftree-builtin-call-dce |
2574 | Common Report Var(flag_tree_builtin_call_dce) Init(0) Optimization | |
2575 | Enable conditional dead code elimination for builtin calls | |
2576 | ||
ce91e74c | 2577 | fwhole-program |
b16650ac | 2578 | Common Report Var(flag_whole_program) Init(0) |
ce91e74c JH |
2579 | Perform whole program optimizations |
2580 | ||
6ff3a151 | 2581 | fwrapv |
c662432e | 2582 | Common Report Var(flag_wrapv) Optimization |
f3fdaec4 | 2583 | Assume signed arithmetic overflow wraps around |
6ff3a151 | 2584 | |
6ff3a151 | 2585 | fzero-initialized-in-bss |
50431bc4 | 2586 | Common Report Var(flag_zero_initialized_in_bss) Init(1) |
f3fdaec4 | 2587 | Put zero initialized data in the bss section |
6ff3a151 | 2588 | |
e01cc6dc NB |
2589 | g |
2590 | Common JoinedOrMissing | |
df38ffef NB |
2591 | Generate debug information in default format |
2592 | ||
2593 | gcoff | |
6782438d | 2594 | Common JoinedOrMissing Negative(gdwarf) |
df38ffef NB |
2595 | Generate debug information in COFF format |
2596 | ||
6782438d SKS |
2597 | gdwarf |
2598 | Common JoinedOrMissing Negative(gdwarf-) | |
2599 | Generate debug information in default version of DWARF format | |
2600 | ||
53b2323e | 2601 | gdwarf- |
98095aa3 | 2602 | Common Joined UInteger Var(dwarf_version) Init(4) Negative(gstabs) |
53b2323e | 2603 | Generate debug information in DWARF v2 (or later) format |
df38ffef NB |
2604 | |
2605 | ggdb | |
2606 | Common JoinedOrMissing | |
2607 | Generate debug information in default extended format | |
2608 | ||
5175cbaf | 2609 | gno-pubnames |
7a1dd0fa | 2610 | Common Negative(gpubnames) Var(debug_generate_pub_sections, 0) Init(-1) |
5175cbaf SA |
2611 | Don't generate DWARF pubnames and pubtypes sections. |
2612 | ||
2613 | gpubnames | |
7a1dd0fa | 2614 | Common Negative(ggnu-pubnames) Var(debug_generate_pub_sections, 1) |
5175cbaf SA |
2615 | Generate DWARF pubnames and pubtypes sections. |
2616 | ||
7a1dd0fa SA |
2617 | ggnu-pubnames |
2618 | Common Negative(gno-pubnames) Var(debug_generate_pub_sections, 2) | |
2619 | Generate DWARF pubnames and pubtypes sections with GNU extensions. | |
2620 | ||
e967adf4 | 2621 | gno-record-gcc-switches |
98095aa3 | 2622 | Common RejectNegative Var(dwarf_record_gcc_switches,0) Init(1) |
e967adf4 JJ |
2623 | Don't record gcc command line switches in DWARF DW_AT_producer. |
2624 | ||
2625 | grecord-gcc-switches | |
2626 | Common RejectNegative Var(dwarf_record_gcc_switches,1) | |
2627 | Record gcc command line switches in DWARF DW_AT_producer. | |
2628 | ||
99ea153e SA |
2629 | gno-split-dwarf |
2630 | Common Driver RejectNegative Var(dwarf_split_debug_info,0) Init(0) | |
2631 | Don't generate debug information in separate .dwo files | |
2632 | ||
2633 | gsplit-dwarf | |
2634 | Common Driver RejectNegative Var(dwarf_split_debug_info,1) | |
2635 | Generate debug information in separate .dwo files | |
2636 | ||
df38ffef | 2637 | gstabs |
14c7833c | 2638 | Common JoinedOrMissing Negative(gstabs+) |
df38ffef NB |
2639 | Generate debug information in STABS format |
2640 | ||
2641 | gstabs+ | |
14c7833c | 2642 | Common JoinedOrMissing Negative(gvms) |
df38ffef NB |
2643 | Generate debug information in extended STABS format |
2644 | ||
65f753a0 | 2645 | gno-strict-dwarf |
98095aa3 | 2646 | Common RejectNegative Var(dwarf_strict,0) Init(0) |
65f753a0 JJ |
2647 | Emit DWARF additions beyond selected version |
2648 | ||
2649 | gstrict-dwarf | |
f0036cca | 2650 | Common Report RejectNegative Var(dwarf_strict,1) |
65f753a0 JJ |
2651 | Don't emit DWARF additions beyond selected version |
2652 | ||
2153915d AO |
2653 | gtoggle |
2654 | Common Report Var(flag_gtoggle) | |
2655 | Toggle debug information generation | |
2656 | ||
df38ffef | 2657 | gvms |
14c7833c | 2658 | Common JoinedOrMissing Negative(gxcoff) |
df38ffef NB |
2659 | Generate debug information in VMS format |
2660 | ||
2661 | gxcoff | |
14c7833c | 2662 | Common JoinedOrMissing Negative(gxcoff+) |
df38ffef NB |
2663 | Generate debug information in XCOFF format |
2664 | ||
2665 | gxcoff+ | |
14c7833c | 2666 | Common JoinedOrMissing Negative(gcoff) |
df38ffef | 2667 | Generate debug information in extended XCOFF format |
e01cc6dc | 2668 | |
29d7cbd1 RO |
2669 | Enum |
2670 | Name(compressed_debug_sections) Type(int) | |
2671 | ||
2672 | ; Since -gz= is completely handled in specs, the values aren't used and we | |
2673 | ; assign arbitrary constants. | |
2674 | EnumValue | |
2675 | Enum(compressed_debug_sections) String(none) Value(0) | |
2676 | ||
2677 | EnumValue | |
2678 | Enum(compressed_debug_sections) String(zlib) Value(1) | |
2679 | ||
2680 | EnumValue | |
2681 | Enum(compressed_debug_sections) String(zlib-gnu) Value(2) | |
2682 | ||
2683 | gz | |
2684 | Common Driver | |
2685 | Generate compressed debug sections | |
2686 | ||
2687 | gz= | |
2688 | Common Driver Joined Enum(compressed_debug_sections) | |
2689 | -gz=<format> Generate compressed debug sections in format <format> | |
2690 | ||
6d721f67 JM |
2691 | h |
2692 | Driver Joined Separate | |
2693 | ||
4adbd5dd MK |
2694 | iplugindir= |
2695 | Common Joined Var(plugindir_string) Init(0) | |
2696 | -iplugindir=<dir> Set <dir> to be the default plugin directory | |
2697 | ||
e0cdc09f MK |
2698 | imultiarch |
2699 | Common Joined Separate RejectDriver Var(imultiarch) Init(0) | |
2700 | -imultiarch <dir> Set <dir> to be the multiarch include subdirectory | |
2701 | ||
603349bf JM |
2702 | l |
2703 | Driver Joined Separate | |
2704 | ||
dd9f93dc JM |
2705 | n |
2706 | Driver | |
2707 | ||
603349bf JM |
2708 | no-canonical-prefixes |
2709 | Driver | |
2710 | ||
d9d16a19 JM |
2711 | nodefaultlibs |
2712 | Driver | |
2713 | ||
bab79a40 JM |
2714 | nostartfiles |
2715 | Driver | |
2716 | ||
d9d16a19 JM |
2717 | nostdlib |
2718 | Driver | |
2719 | ||
d185d268 | 2720 | o |
d5478783 | 2721 | Common Driver Joined Separate Var(asm_file_name) MissingArgError(missing filename after %qs) |
cf03fd63 | 2722 | -o <file> Place output into <file> |
d185d268 NB |
2723 | |
2724 | p | |
50431bc4 | 2725 | Common Var(profile_flag) |
cf03fd63 | 2726 | Enable function profiling |
d185d268 | 2727 | |
603349bf JM |
2728 | pass-exit-codes |
2729 | Driver Var(pass_exit_codes) | |
2730 | ||
d185d268 | 2731 | pedantic |
c1771a20 | 2732 | Common Alias(Wpedantic) |
d185d268 NB |
2733 | |
2734 | pedantic-errors | |
d5478783 | 2735 | Common Var(flag_pedantic_errors) |
cf03fd63 | 2736 | Like -pedantic but issue them as errors |
d185d268 | 2737 | |
d9d16a19 JM |
2738 | pg |
2739 | Driver | |
2740 | ||
603349bf JM |
2741 | pipe |
2742 | Driver Var(use_pipes) | |
2743 | ||
2744 | print-file-name= | |
2745 | Driver JoinedOrMissing Var(print_file_name) | |
2746 | ||
2747 | print-libgcc-file-name | |
2748 | Driver | |
2749 | ||
2750 | print-multi-directory | |
2751 | Driver Var(print_multi_directory) | |
2752 | ||
2753 | print-multi-lib | |
2754 | Driver Var(print_multi_lib) | |
2755 | ||
2756 | print-multi-os-directory | |
2757 | Driver Var(print_multi_os_directory) | |
e0cdc09f MK |
2758 | |
2759 | print-multiarch | |
2760 | Driver Var(print_multiarch) | |
603349bf JM |
2761 | |
2762 | print-prog-name= | |
2763 | Driver JoinedOrMissing Var(print_prog_name) | |
2764 | ||
2765 | print-search-dirs | |
2766 | Driver Var(print_search_dirs) | |
2767 | ||
2768 | print-sysroot | |
2769 | Driver Var(print_sysroot) | |
2770 | ||
2771 | print-sysroot-headers-suffix | |
2772 | Driver Var(print_sysroot_headers_suffix) | |
2773 | ||
d7b42618 | 2774 | quiet |
603349bf | 2775 | Common Var(quiet_flag) RejectDriver |
cf03fd63 | 2776 | Do not display functions compiled or elapsed time |
d7b42618 | 2777 | |
dd9f93dc JM |
2778 | r |
2779 | Driver | |
2780 | ||
2781 | s | |
2782 | Driver | |
2783 | ||
603349bf JM |
2784 | save-temps |
2785 | Driver | |
2786 | ||
2787 | save-temps= | |
2788 | Driver Joined | |
2789 | ||
dd9f93dc JM |
2790 | t |
2791 | Driver | |
2792 | ||
603349bf JM |
2793 | time |
2794 | Driver Var(report_times) | |
2795 | ||
2796 | time= | |
2797 | Driver JoinedOrMissing | |
2798 | ||
e200444e JM |
2799 | u |
2800 | Driver Joined Separate | |
2801 | ||
5642f5d5 JM |
2802 | undef |
2803 | Driver | |
2804 | ; C option, but driver must not handle as "-u ndef". | |
2805 | ||
603349bf | 2806 | v |
d5478783 JM |
2807 | Common Driver Var(verbose_flag) |
2808 | Enable verbose output | |
603349bf | 2809 | |
d185d268 | 2810 | version |
603349bf | 2811 | Common Var(version_flag) RejectDriver |
cf03fd63 | 2812 | Display the compiler's version |
d185d268 NB |
2813 | |
2814 | w | |
50431bc4 | 2815 | Common Var(inhibit_warnings) |
cf03fd63 | 2816 | Suppress warnings |
d185d268 | 2817 | |
603349bf JM |
2818 | wrapper |
2819 | Driver Separate Var(wrapper_string) | |
2820 | ||
2821 | x | |
2822 | Driver Joined Separate | |
2823 | ||
528dc603 | 2824 | shared |
5460e1fc | 2825 | Driver RejectNegative Negative(pie) |
528dc603 L |
2826 | Create a shared library |
2827 | ||
603349bf JM |
2828 | shared-libgcc |
2829 | Driver | |
2830 | ||
2831 | specs | |
5de8299c | 2832 | Driver Separate Alias(specs=) |
603349bf JM |
2833 | |
2834 | specs= | |
2835 | Driver Joined | |
2836 | ||
d9d16a19 JM |
2837 | static |
2838 | Driver | |
2839 | ||
603349bf JM |
2840 | static-libgcc |
2841 | Driver | |
2842 | ||
2843 | static-libgfortran | |
2844 | Driver | |
2845 | ; Documented for Fortran, but always accepted by driver. | |
2846 | ||
2847 | static-libstdc++ | |
2848 | Driver | |
2849 | ||
7a938933 ILT |
2850 | static-libgo |
2851 | Driver | |
2852 | ; Documented for Go, but always accepted by driver. | |
2853 | ||
7e8d1b2d L |
2854 | static-libasan |
2855 | Driver | |
2856 | ||
32b4b7f5 DV |
2857 | static-libtsan |
2858 | Driver | |
2859 | ||
9065ada9 JJ |
2860 | static-liblsan |
2861 | Driver | |
2862 | ||
de5a5fa1 MP |
2863 | static-libubsan |
2864 | Driver | |
2865 | ||
e200444e JM |
2866 | symbolic |
2867 | Driver | |
2868 | ||
428b3812 | 2869 | no-pie |
5460e1fc | 2870 | Driver RejectNegative Negative(shared) |
428b3812 L |
2871 | Don't create a position independent executable |
2872 | ||
2873 | pie | |
2874 | Driver RejectNegative Negative(no-pie) | |
528dc603 L |
2875 | Create a position independent executable |
2876 | ||
6d721f67 JM |
2877 | z |
2878 | Driver Joined Separate | |
2879 | ||
1e288103 TV |
2880 | fipa-ra |
2881 | Common Report Var(flag_ipa_ra) Optimization | |
d996e61a RO |
2882 | Use caller save register across calls if possible |
2883 | ||
d7b42618 | 2884 | ; This comment is to ensure we retain the blank line above. |