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3272db82 | 1 | ; Options for the language- and target-independent parts of the compiler. |
2e9da478 | 2 | |
1412b935 | 3 | ; Copyright (C) 2003, 2004, 2005, 2006, 2007, 2008, 2009, 2010, 2011, 2012 |
7765591b | 4 | ; Free Software Foundation, Inc. |
3272db82 | 5 | ; |
6 | ; This file is part of GCC. | |
7 | ; | |
8 | ; GCC is free software; you can redistribute it and/or modify it under | |
9 | ; the terms of the GNU General Public License as published by the Free | |
8c4c00c1 | 10 | ; Software Foundation; either version 3, or (at your option) any later |
3272db82 | 11 | ; version. |
a0c938f0 | 12 | ; |
3272db82 | 13 | ; GCC is distributed in the hope that it will be useful, but WITHOUT ANY |
14 | ; WARRANTY; without even the implied warranty of MERCHANTABILITY or | |
15 | ; FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License | |
16 | ; for more details. | |
a0c938f0 | 17 | ; |
3272db82 | 18 | ; You should have received a copy of the GNU General Public License |
8c4c00c1 | 19 | ; along with GCC; see the file COPYING3. If not see |
20 | ; <http://www.gnu.org/licenses/>. | |
3272db82 | 21 | |
a4b0007b | 22 | ; See the GCC internals manual (options.texi) for a description of this file's format. |
3272db82 | 23 | |
24 | ; Please try to keep this file in ASCII collating order. | |
25 | ||
0f8defe5 | 26 | Variable |
27 | int target_flags | |
28 | ||
2c5d2e39 | 29 | Variable |
30 | int optimize | |
31 | ||
32 | Variable | |
33 | int optimize_size | |
34 | ||
d2807aa3 | 35 | ; Not used directly to control optimizations, only to save -Ofast |
36 | ; setting for "optimize" attributes. | |
37 | Variable | |
38 | int optimize_fast | |
39 | ||
90336809 | 40 | ; True if this is the lto front end. This is used to disable gimple |
41 | ; generation and lowering passes that are normally run on the output | |
42 | ; of a front end. These passes must be bypassed for lto since they | |
43 | ; have already been done before the gimple was written. | |
44 | Variable | |
45 | bool in_lto_p = false | |
46 | ||
f3f006ad | 47 | ; 0 means straightforward implementation of complex divide acceptable. |
48 | ; 1 means wide ranges of inputs must work for complex divide. | |
49 | ; 2 means C99-like requirements for complex multiply and divide. | |
50 | Variable | |
51 | int flag_complex_method = 1 | |
52 | ||
53 | ; Nonzero if subexpressions must be evaluated from left-to-right. | |
54 | Variable | |
55 | int flag_evaluation_order = 0 | |
56 | ||
f3f006ad | 57 | ; Language specific warning pass for unused results. |
58 | Variable | |
59 | bool flag_warn_unused_result = false | |
60 | ||
56f280c4 | 61 | Variable |
62 | int *param_values | |
63 | ||
6bd9d862 | 64 | ; Nonzero if we should write GIMPLE bytecode for link-time optimization. |
65 | Variable | |
66 | int flag_generate_lto | |
67 | ||
68 | ; True to warn about any objects definitions whose size is larger | |
69 | ; than N bytes. Also want about function definitions whose returned | |
70 | ; values are larger than N bytes, where N is 'larger_than_size'. | |
71 | Variable | |
72 | bool warn_larger_than | |
73 | ||
74 | Variable | |
75 | HOST_WIDE_INT larger_than_size | |
76 | ||
77 | ; True to warn about any function whose frame size is larger | |
78 | ; than N bytes. | |
79 | Variable | |
80 | bool warn_frame_larger_than | |
81 | ||
82 | Variable | |
83 | HOST_WIDE_INT frame_larger_than_size | |
84 | ||
85 | ; Nonzero means we should be saving declaration info into a .X file. | |
86 | Variable | |
87 | int flag_gen_aux_info = 0 | |
88 | ||
89 | ; Nonzero if we are compiling code for a shared library, zero for | |
90 | ; executable. | |
91 | Variable | |
92 | int flag_shlib | |
93 | ||
470a0ecd | 94 | ; These two are really VEC(char_p,heap) *. |
95 | ||
96 | Variable | |
97 | void *flag_instrument_functions_exclude_functions | |
98 | ||
99 | Variable | |
100 | void *flag_instrument_functions_exclude_files | |
101 | ||
d7175aef | 102 | ; Generic structs (e.g. templates not explicitly specialized) |
103 | ; may not have a compilation unit associated with them, and so | |
104 | ; may need to be treated differently from ordinary structs. | |
105 | ; | |
106 | ; Structs only handled by reference (indirectly), will also usually | |
107 | ; not need as much debugging information. | |
108 | ||
109 | Variable | |
110 | enum debug_struct_file debug_struct_ordinary[DINFO_USAGE_NUM_ENUMS] = { DINFO_STRUCT_FILE_ANY, DINFO_STRUCT_FILE_ANY, DINFO_STRUCT_FILE_ANY } | |
111 | ||
112 | Variable | |
113 | enum debug_struct_file debug_struct_generic[DINFO_USAGE_NUM_ENUMS] = { DINFO_STRUCT_FILE_ANY, DINFO_STRUCT_FILE_ANY, DINFO_STRUCT_FILE_ANY } | |
114 | ||
cc4fa57a | 115 | ; True if we should exit after parsing options. |
116 | Variable | |
117 | bool exit_after_options | |
118 | ||
119 | ; Type(s) of debugging information we are producing (if any). See | |
120 | ; flag-types.h for the definitions of the different possible types of | |
121 | ; debugging information. | |
122 | Variable | |
123 | enum debug_info_type write_symbols = NO_DEBUG | |
124 | ||
125 | ; Level of debugging information we are producing. See flag-types.h | |
126 | ; for the definitions of the different possible levels. | |
127 | Variable | |
128 | enum debug_info_levels debug_info_level = DINFO_LEVEL_NONE | |
129 | ||
130 | ; Nonzero means use GNU-only extensions in the generated symbolic | |
131 | ; debugging information. Currently, this only has an effect when | |
132 | ; write_symbols is set to DBX_DEBUG, XCOFF_DEBUG, or DWARF_DEBUG. | |
133 | Variable | |
134 | bool use_gnu_debug_info_extensions | |
135 | ||
9faf44d6 | 136 | ; Original value of maximum field alignment in bytes, specified via |
137 | ; -fpack-struct=<value>. | |
138 | Variable | |
139 | unsigned int initial_max_fld_align = TARGET_DEFAULT_PACK_STRUCT | |
140 | ||
295e1243 | 141 | Variable |
142 | enum vect_verbosity_levels user_vect_verbosity_level = MAX_VERBOSITY_LEVEL | |
143 | ||
ab3728ee | 144 | ; Type of stack check. |
145 | Variable | |
146 | enum stack_check_type flag_stack_check = NO_STACK_CHECK | |
147 | ||
8c0dd614 | 148 | ; True if stack usage information needs to be computed. |
149 | Variable | |
150 | bool flag_stack_usage_info = false | |
151 | ||
9faf44d6 | 152 | ; -dA causes debug commentary information to be produced in |
153 | ; the generated assembly code (to make it more readable). This option | |
154 | ; is generally only of use to those who actually need to read the | |
155 | ; generated assembly code (perhaps while debugging the compiler itself). | |
156 | ; Currently, this switch is only used by dwarf2out.c; however, it is intended | |
157 | ; to be a catchall for printing debug information in the assembler file. | |
158 | Variable | |
159 | int flag_debug_asm | |
160 | ||
161 | ; -dP causes the rtl to be emitted as a comment in assembly. | |
162 | Variable | |
163 | int flag_dump_rtl_in_asm | |
164 | ||
165 | ; Whether -da was passed (used only in handle_common_deferred_options). | |
166 | Variable | |
167 | bool flag_dump_all_passed | |
168 | ||
169 | ; Other flags saying which kinds of debugging dump have been requested. | |
170 | ||
171 | Variable | |
172 | int rtl_dump_and_exit | |
173 | ||
174 | Variable | |
175 | int flag_print_asm_name | |
176 | ||
177 | Variable | |
178 | enum graph_dump_types graph_dump_format = no_graph | |
179 | ||
0e763b2a | 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 | ||
9faf44d6 | 196 | ; Which options have been printed by --help. |
197 | Variable | |
198 | char *help_printed | |
199 | ||
d62a5950 | 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 | ||
9faf44d6 | 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 | ||
e28aa114 | 214 | ### |
215 | Driver | |
216 | ||
5789e05b | 217 | -assemble |
218 | Driver Alias(S) | |
219 | ||
220 | -compile | |
221 | Driver Alias(c) | |
222 | ||
223 | -coverage | |
224 | Driver Alias(coverage) | |
225 | ||
226 | -debug | |
227 | Common Alias(g) | |
228 | ||
229 | -dump | |
230 | Common Separate Alias(d) | |
231 | ||
232 | -dump= | |
233 | Common Joined Alias(d) | |
234 | ||
235 | -dumpbase | |
236 | Common Separate Alias(dumpbase) | |
237 | ||
238 | -dumpdir | |
239 | Common Separate Alias(dumpdir) | |
240 | ||
241 | -entry | |
242 | Driver Separate Alias(e) | |
243 | ||
244 | -entry= | |
245 | Driver Joined Alias(e) | |
246 | ||
247 | -extra-warnings | |
248 | Common Warning Alias(Wextra) | |
249 | ||
250 | -for-assembler | |
251 | Driver Separate Alias(Xassembler) | |
252 | ||
253 | -for-assembler= | |
254 | Driver JoinedOrMissing Alias(Xassembler) | |
255 | ||
256 | -for-linker | |
257 | Driver Separate Alias(Xlinker) | |
258 | ||
259 | -for-linker= | |
260 | Driver JoinedOrMissing Alias(Xlinker) | |
261 | ||
262 | -force-link | |
263 | Driver Separate Alias(u) | |
264 | ||
265 | -force-link= | |
266 | Driver Joined Alias(u) | |
267 | ||
e690b385 | 268 | -help |
5789e05b | 269 | Common Driver Var(help_flag) |
53b8e5c1 | 270 | Display this information |
e690b385 | 271 | |
87c75316 | 272 | -help= |
e28aa114 | 273 | Common Driver Report Joined |
87c75316 | 274 | --help=<class> Display descriptions of a specific class of options. <class> is one or more of optimizers, target, warnings, undocumented, params |
da3b1bab | 275 | |
5789e05b | 276 | -language |
277 | Driver Separate Alias(x) | |
278 | ||
279 | -language= | |
280 | Driver Joined Alias(x) | |
281 | ||
282 | -library-directory | |
283 | Driver Separate Alias(L) | |
284 | ||
285 | -library-directory= | |
286 | Driver Joined Alias(L) | |
287 | ||
288 | -no-canonical-prefixes | |
289 | Driver Alias(no-canonical-prefixes) | |
290 | ||
291 | -no-standard-libraries | |
292 | Driver Alias(nostdlib) | |
293 | ||
294 | -no-warnings | |
295 | Common Alias(w) | |
296 | ||
297 | -optimize | |
298 | Common Alias(O) | |
299 | ||
300 | -output | |
301 | Common Driver Separate Alias(o) MissingArgError(missing filename after %qs) | |
302 | ||
303 | -output= | |
304 | Common Driver Joined Alias(o) MissingArgError(missing filename after %qs) | |
305 | ||
306 | -pass-exit-codes | |
307 | Driver Alias(pass-exit-codes) | |
308 | ||
309 | -pedantic | |
29438999 | 310 | Common Alias(Wpedantic) |
5789e05b | 311 | |
312 | -pedantic-errors | |
313 | Common Alias(pedantic-errors) | |
314 | ||
315 | -pie | |
1412b935 | 316 | Driver Alias(pie) |
5789e05b | 317 | |
318 | -pipe | |
319 | Driver Alias(pipe) | |
320 | ||
321 | -prefix | |
322 | Driver Separate Alias(B) | |
323 | ||
324 | -prefix= | |
325 | Driver JoinedOrMissing Alias(B) | |
326 | ||
327 | -preprocess | |
328 | Driver Alias(E) | |
329 | ||
330 | -print-file-name | |
331 | Driver Separate Alias(print-file-name=) | |
332 | ||
333 | -print-file-name= | |
334 | Driver JoinedOrMissing Alias(print-file-name=) | |
335 | ||
336 | -print-libgcc-file-name | |
337 | Driver Alias(print-libgcc-file-name) | |
338 | ||
339 | -print-multi-directory | |
340 | Driver Alias(print-multi-directory) | |
341 | ||
342 | -print-multi-lib | |
343 | Driver Alias(print-multi-lib) | |
344 | ||
345 | -print-multi-os-directory | |
346 | Driver Alias(print-multi-os-directory) | |
347 | ||
348 | -print-prog-name | |
349 | Driver Separate Alias(print-prog-name=) | |
350 | ||
351 | -print-prog-name= | |
352 | Driver JoinedOrMissing Alias(print-prog-name=) | |
353 | ||
354 | -print-search-dirs | |
355 | Driver Alias(print-search-dirs) | |
356 | ||
357 | -print-sysroot | |
358 | Driver Alias(print-sysroot) | |
359 | ||
360 | -print-sysroot-headers-suffix | |
361 | Driver Alias(print-sysroot-headers-suffix) | |
362 | ||
363 | -profile | |
364 | Common Alias(p) | |
365 | ||
366 | -save-temps | |
367 | Driver Alias(save-temps) | |
368 | ||
369 | -shared | |
1412b935 | 370 | Driver Alias(shared) |
5789e05b | 371 | |
372 | -specs | |
373 | Driver Separate Alias(specs=) | |
374 | ||
375 | -specs= | |
376 | Driver Joined Alias(specs=) | |
377 | ||
378 | -static | |
379 | Driver Alias(static) | |
380 | ||
381 | -symbolic | |
382 | Driver Alias(symbolic) | |
383 | ||
e690b385 | 384 | -target-help |
e28aa114 | 385 | Common Driver |
87c75316 | 386 | Alias for --help=target |
387 | ||
5789e05b | 388 | -time |
389 | Driver Alias(time) | |
390 | ||
391 | -verbose | |
392 | Driver Alias(v) | |
393 | ||
394 | ;; The driver used to convert options such as --help into forms such | |
395 | ;; as -fhelp; the following four entries are for compatibility with | |
396 | ;; any direct uses of those (undocumented) -f forms | |
87c75316 | 397 | fhelp |
5789e05b | 398 | Common Driver Alias(-help) |
87c75316 | 399 | |
400 | fhelp= | |
5789e05b | 401 | Common Driver Joined Alias(-help=) |
87c75316 | 402 | |
403 | ftarget-help | |
5789e05b | 404 | Common Driver Alias(-target-help) |
87c75316 | 405 | |
39932bd2 | 406 | fversion |
5789e05b | 407 | Common Driver Alias(-version) |
39932bd2 | 408 | |
87c75316 | 409 | -param |
410 | Common Separate | |
411 | --param <param>=<value> Set parameter <param> to value. See below for a complete list of parameters | |
e690b385 | 412 | |
5789e05b | 413 | -param= |
414 | Common Joined Alias(-param) | |
415 | ||
416 | -sysroot | |
417 | Driver Separate Alias(-sysroot=) | |
418 | ||
e28aa114 | 419 | -sysroot= |
420 | Driver JoinedOrMissing | |
421 | ||
e690b385 | 422 | -version |
e28aa114 | 423 | Common Driver |
424 | ||
425 | B | |
426 | Driver Joined Separate | |
427 | ||
428 | E | |
429 | Driver | |
e690b385 | 430 | |
cb22f930 | 431 | L |
432 | Driver Joined Separate | |
433 | ||
3bfde2af | 434 | N |
435 | Driver | |
436 | ||
da3b1bab | 437 | O |
46f8e3b0 | 438 | Common JoinedOrMissing Optimization |
53b8e5c1 | 439 | -O<number> Set optimization level to <number> |
da3b1bab | 440 | |
441 | Os | |
46f8e3b0 | 442 | Common Optimization |
53b8e5c1 | 443 | Optimize for space rather than speed |
da3b1bab | 444 | |
1ebc0b9f | 445 | Ofast |
446 | Common Optimization | |
447 | Optimize for speed disregarding exact standards compliance | |
448 | ||
3bfde2af | 449 | Q |
450 | Driver | |
451 | ||
452 | Qn | |
453 | Driver Negative(Qy) | |
454 | ||
455 | Qy | |
456 | Driver Negative(Qn) | |
457 | ||
f37ef985 | 458 | R |
459 | Driver Joined Separate | |
460 | ||
e28aa114 | 461 | S |
462 | Driver | |
463 | ||
f37ef985 | 464 | T |
465 | Driver Joined Separate | |
466 | ||
467 | Tbss | |
468 | Driver Separate | |
469 | ||
69304750 | 470 | Tbss= |
471 | Driver Joined | |
472 | ||
f37ef985 | 473 | Tdata |
474 | Driver Separate | |
475 | ||
69304750 | 476 | Tdata= |
477 | Driver Joined | |
478 | ||
f37ef985 | 479 | Ttext |
480 | Driver Separate | |
481 | ||
69304750 | 482 | Ttext= |
483 | Driver Joined | |
484 | ||
da3b1bab | 485 | W |
67089c6b | 486 | Common RejectNegative Warning Alias(Wextra) |
bb0814ce | 487 | This switch is deprecated; use -Wextra instead |
da3b1bab | 488 | |
e28aa114 | 489 | Wa, |
490 | Driver JoinedOrMissing | |
491 | ||
492 | Wl, | |
493 | Driver JoinedOrMissing | |
494 | ||
495 | Wp, | |
496 | Driver JoinedOrMissing | |
497 | ||
6f2f567f | 498 | Waggregate-return |
87c75316 | 499 | Common Var(warn_aggregate_return) Warning |
bb0814ce | 500 | Warn about returning structures, unions or arrays |
6f2f567f | 501 | |
5bc96398 | 502 | Warray-bounds |
e8831472 | 503 | Common Var(warn_array_bounds) Warning |
5bc96398 | 504 | Warn if an array is accessed out of bounds |
505 | ||
9b2d6d13 | 506 | Wattributes |
87c75316 | 507 | Common Var(warn_attributes) Init(1) Warning |
9b2d6d13 | 508 | Warn about inappropriate attribute usage |
509 | ||
6f2f567f | 510 | Wcast-align |
87c75316 | 511 | Common Var(warn_cast_align) Warning |
bb0814ce | 512 | Warn about pointer casts which increase alignment |
6f2f567f | 513 | |
3a79f5da | 514 | Wcpp |
515 | Common Var(warn_cpp) Init(1) Warning | |
516 | Warn when a #warning directive is encountered | |
517 | ||
6f2f567f | 518 | Wdeprecated-declarations |
87c75316 | 519 | Common Var(warn_deprecated_decl) Init(1) Warning |
bb0814ce | 520 | Warn about uses of __attribute__((deprecated)) declarations |
6f2f567f | 521 | |
522 | Wdisabled-optimization | |
87c75316 | 523 | Common Var(warn_disabled_optimization) Warning |
bb0814ce | 524 | Warn when an optimization pass is disabled |
6f2f567f | 525 | |
526 | Werror | |
2e9da478 | 527 | Common Var(warnings_are_errors) |
bb0814ce | 528 | Treat all warnings as errors |
6f2f567f | 529 | |
76f02516 | 530 | Werror= |
531 | Common Joined | |
532 | Treat specified warning as error | |
533 | ||
da3b1bab | 534 | Wextra |
a0ded67b | 535 | Common Var(extra_warnings) Warning |
53b8e5c1 | 536 | Print extra (possibly unwanted) warnings |
da3b1bab | 537 | |
295acf4f | 538 | Wfatal-errors |
2e9da478 | 539 | Common Var(flag_fatal_errors) |
295acf4f | 540 | Exit on the first error occurred |
541 | ||
6fdade09 | 542 | Wframe-larger-than= |
543 | Common RejectNegative Joined UInteger | |
cf210371 | 544 | -Wframe-larger-than=<number> Warn if a function's stack frame requires more than <number> bytes |
6fdade09 | 545 | |
f74ea1c2 | 546 | Wfree-nonheap-object |
547 | Common Var(warn_free_nonheap_object) Init(1) Warning | |
548 | Warn when attempting to free a non-heap object | |
549 | ||
6f2f567f | 550 | Winline |
87c75316 | 551 | Common Var(warn_inline) Warning |
bb0814ce | 552 | Warn when an inlined function cannot be inlined |
6f2f567f | 553 | |
1cd6e20d | 554 | Winvalid-memory-model |
555 | Common Var(warn_invalid_memory_model) Init(1) Warning | |
556 | Warn when an atomic memory model parameter is known to be outside the valid range. | |
557 | ||
6f2f567f | 558 | Wlarger-than- |
67089c6b | 559 | Common RejectNegative Joined Warning Undocumented Alias(Wlarger-than=) |
17c66687 | 560 | |
561 | Wlarger-than= | |
562 | Common RejectNegative Joined UInteger Warning | |
563 | -Wlarger-than=<number> Warn if an object is larger than <number> bytes | |
6f2f567f | 564 | |
7e3cc681 | 565 | Wunsafe-loop-optimizations |
87c75316 | 566 | Common Var(warn_unsafe_loop_optimizations) Warning |
7e3cc681 | 567 | Warn if the loop cannot be optimized due to nontrivial assumptions. |
568 | ||
6f2f567f | 569 | Wmissing-noreturn |
fdc46702 | 570 | Common Alias(Wsuggest-attribute=noreturn) |
6f2f567f | 571 | |
55972f40 | 572 | Woverflow |
87c75316 | 573 | Common Var(warn_overflow) Init(1) Warning |
55972f40 | 574 | Warn about overflow in arithmetic expressions |
575 | ||
6f2f567f | 576 | Wpacked |
87c75316 | 577 | Common Var(warn_packed) Warning |
bb0814ce | 578 | Warn when the packed attribute has no effect on struct layout |
6f2f567f | 579 | |
580 | Wpadded | |
87c75316 | 581 | Common Var(warn_padded) Warning |
bb0814ce | 582 | Warn when padding is required to align structure members |
6f2f567f | 583 | |
29438999 | 584 | Wpedantic |
585 | Common Var(pedantic) Warning | |
586 | Issue warnings needed for strict compliance to the standard | |
587 | ||
6f2f567f | 588 | Wshadow |
87c75316 | 589 | Common Var(warn_shadow) Warning |
bb0814ce | 590 | Warn when one local variable shadows another |
6f2f567f | 591 | |
f1a0edff | 592 | Wstack-protector |
87c75316 | 593 | Common Var(warn_stack_protect) Warning |
f1a0edff | 594 | Warn when not issuing stack smashing protection for some reason |
595 | ||
8c0dd614 | 596 | Wstack-usage= |
597 | Common Joined RejectNegative UInteger Var(warn_stack_usage) Init(-1) Warning | |
598 | Warn if stack usage might be larger than specified amount | |
599 | ||
6f2f567f | 600 | Wstrict-aliasing |
87c75316 | 601 | Common Warning |
bb0814ce | 602 | Warn about code which might break strict aliasing rules |
6f2f567f | 603 | |
c1628b55 | 604 | Wstrict-aliasing= |
212cc995 | 605 | Common Joined RejectNegative UInteger Var(warn_strict_aliasing) Init(-1) Warning |
c1628b55 | 606 | Warn about code which might break strict aliasing rules |
607 | ||
add6ee5e | 608 | Wstrict-overflow |
e8831472 | 609 | Common Warning |
add6ee5e | 610 | Warn about optimizations that assume that signed overflow is undefined |
611 | ||
612 | Wstrict-overflow= | |
212cc995 | 613 | Common Joined RejectNegative UInteger Var(warn_strict_overflow) Init(-1) Warning |
add6ee5e | 614 | Warn about optimizations that assume that signed overflow is undefined |
615 | ||
2c06958d | 616 | Wsuggest-attribute=const |
617 | Common Var(warn_suggest_attribute_const) Warning | |
618 | Warn about functions which might be candidates for __attribute__((const)) | |
619 | ||
620 | Wsuggest-attribute=pure | |
621 | Common Var(warn_suggest_attribute_pure) Warning | |
622 | Warn about functions which might be candidates for __attribute__((pure)) | |
623 | ||
43d60d64 | 624 | Wsuggest-attribute=noreturn |
625 | Common Var(warn_suggest_attribute_noreturn) Warning | |
626 | Warn about functions which might be candidates for __attribute__((noreturn)) | |
627 | ||
6f2f567f | 628 | Wswitch |
87c75316 | 629 | Common Var(warn_switch) Warning |
bb0814ce | 630 | Warn about enumerated switches, with no default, missing a case |
6f2f567f | 631 | |
632 | Wswitch-default | |
87c75316 | 633 | Common Var(warn_switch_default) Warning |
bb0814ce | 634 | Warn about enumerated switches missing a \"default:\" statement |
6f2f567f | 635 | |
636 | Wswitch-enum | |
87c75316 | 637 | Common Var(warn_switch_enum) Warning |
bb0814ce | 638 | Warn about all enumerated switches missing a specific case |
6f2f567f | 639 | |
640 | Wsystem-headers | |
87c75316 | 641 | Common Var(warn_system_headers) Warning |
72528c71 | 642 | Do not suppress warnings from system headers |
6f2f567f | 643 | |
8bc8a8f4 | 644 | Wtrampolines |
645 | Common Var(warn_trampolines) Warning | |
646 | Warn whenever a trampoline is generated | |
647 | ||
100b67da | 648 | Wtype-limits |
70059cea | 649 | Common Var(warn_type_limits) Warning EnabledBy(Wextra) |
100b67da | 650 | Warn if a comparison is always true or always false due to the limited range of the data type |
651 | ||
6f2f567f | 652 | Wuninitialized |
fbb6fbd8 | 653 | Common Var(warn_uninitialized) Warning EnabledBy(Wextra) |
bb0814ce | 654 | Warn about uninitialized automatic variables |
6f2f567f | 655 | |
8c3e8d68 | 656 | Wmaybe-uninitialized |
fbb6fbd8 | 657 | Common Var(warn_maybe_uninitialized) Warning EnabledBy(Wuninitialized) |
8c3e8d68 | 658 | Warn about maybe uninitialized automatic variables |
659 | ||
6f2f567f | 660 | Wunreachable-code |
3b0273a1 | 661 | Common Ignore |
cc029bec | 662 | Does nothing. Preserved for backward compatibility. |
6f2f567f | 663 | |
da3b1bab | 664 | Wunused |
278e3a1f | 665 | Common Var(warn_unused) Init(0) Warning |
53b8e5c1 | 666 | Enable all -Wunused- warnings |
da3b1bab | 667 | |
abc6c64f | 668 | Wunused-but-set-parameter |
669 | Common Var(warn_unused_but_set_parameter) Init(-1) Warning | |
670 | Warn when a function parameter is only set, otherwise unused | |
671 | ||
672 | Wunused-but-set-variable | |
fbb6fbd8 | 673 | Common Var(warn_unused_but_set_variable) Warning EnabledBy(Wunused) |
abc6c64f | 674 | Warn when a variable is only set, otherwise unused |
675 | ||
6f2f567f | 676 | Wunused-function |
fbb6fbd8 | 677 | Common Var(warn_unused_function) Warning EnabledBy(Wunused) |
bb0814ce | 678 | Warn when a function is unused |
6f2f567f | 679 | |
680 | Wunused-label | |
fbb6fbd8 | 681 | Common Var(warn_unused_label) Warning EnabledBy(Wunused) |
bb0814ce | 682 | Warn when a label is unused |
6f2f567f | 683 | |
684 | Wunused-parameter | |
278e3a1f | 685 | Common Var(warn_unused_parameter) Init(-1) Warning |
bb0814ce | 686 | Warn when a function parameter is unused |
6f2f567f | 687 | |
688 | Wunused-value | |
fbb6fbd8 | 689 | Common Var(warn_unused_value) Warning EnabledBy(Wunused) |
bb0814ce | 690 | Warn when an expression value is unused |
6f2f567f | 691 | |
692 | Wunused-variable | |
fbb6fbd8 | 693 | Common Var(warn_unused_variable) Warning EnabledBy(Wunused) |
bb0814ce | 694 | Warn when a variable is unused |
6f2f567f | 695 | |
c81ed7c1 | 696 | Wcoverage-mismatch |
21cd990d | 697 | Common Var(warn_coverage_mismatch) Init(1) Warning |
698 | Warn in case profiles in -fprofile-use do not match | |
c81ed7c1 | 699 | |
928efcfe | 700 | Wvector-operation-performance |
701 | Common Var(warn_vector_operation_performance) Warning | |
702 | Warn when a vector operation is compiled outside the SIMD | |
703 | ||
e28aa114 | 704 | Xassembler |
705 | Driver Separate | |
706 | ||
707 | Xlinker | |
708 | Driver Separate | |
709 | ||
710 | Xpreprocessor | |
711 | Driver Separate | |
712 | ||
3bfde2af | 713 | Z |
714 | Driver | |
715 | ||
e690b385 | 716 | aux-info |
6bd9d862 | 717 | Common Separate Var(aux_info_file_name) |
53b8e5c1 | 718 | -aux-info <file> Emit declaration information into <file> |
e690b385 | 719 | |
720 | aux-info= | |
67089c6b | 721 | Common Joined Alias(aux-info) |
e690b385 | 722 | |
723 | auxbase | |
6bd9d862 | 724 | Common Separate RejectDriver Var(aux_base_name) |
e690b385 | 725 | |
726 | auxbase-strip | |
e28aa114 | 727 | Common Separate RejectDriver |
728 | ||
5789e05b | 729 | coverage |
730 | Driver | |
731 | ||
e28aa114 | 732 | c |
733 | Driver | |
e690b385 | 734 | |
735 | d | |
736 | Common Joined | |
53b8e5c1 | 737 | -d<letters> Enable dumps from specific passes of the compiler |
e690b385 | 738 | |
739 | dumpbase | |
6bd9d862 | 740 | Common Separate Var(dump_base_name) |
53b8e5c1 | 741 | -dumpbase <file> Set the file basename to be used for dumps |
e690b385 | 742 | |
50ca7c37 | 743 | dumpdir |
6bd9d862 | 744 | Common Separate Var(dump_dir_name) |
eb21bbd2 | 745 | -dumpdir <dir> Set the directory name to be used for dumps |
50ca7c37 | 746 | |
e28aa114 | 747 | dumpmachine |
748 | Driver | |
749 | ||
750 | dumpspecs | |
751 | Driver | |
752 | ||
753 | dumpversion | |
754 | Driver | |
755 | ||
5789e05b | 756 | e |
757 | Driver Joined Separate | |
758 | ||
455188e9 | 759 | ; This option has historically been passed down to the linker by an |
760 | ; accident of a %{e*} spec, so ensure it continues to be passed down | |
761 | ; as a single option. The supported option for this purpose is | |
762 | ; -rdynamic. See PR 47390. | |
763 | export-dynamic | |
764 | Driver Undocumented | |
765 | ||
82a16202 | 766 | ; The version of the C++ ABI in use. The following values are allowed: |
767 | ; | |
768 | ; 0: The version of the ABI believed most conformant with the C++ ABI | |
769 | ; specification. This ABI may change as bugs are discovered and fixed. | |
770 | ; Therefore, 0 will not necessarily indicate the same ABI in different | |
771 | ; versions of G++. | |
772 | ; | |
773 | ; 1: The version of the ABI first used in G++ 3.2. | |
774 | ; | |
29e2e80a | 775 | ; 2: The version of the ABI first used in G++ 3.4 (and current default). |
776 | ; | |
777 | ; 3: The version of the ABI that fixes the missing underscore | |
778 | ; in template non-type arguments of pointer type. | |
779 | ; | |
780 | ; 4: The version of the ABI that introduces unambiguous mangling of | |
87d553db | 781 | ; vector types. First selectable in G++ 4.5. |
e9e7c198 | 782 | ; |
4d7aaf8e | 783 | ; 5: The version of the ABI that ignores attribute const/noreturn |
87d553db | 784 | ; in function pointer mangling, and corrects mangling of decltype and |
4d7aaf8e | 785 | ; function parameters used in other parameters and the return type. |
87d553db | 786 | ; First selectable in G++ 4.6. |
4d7aaf8e | 787 | ; |
2d847c18 | 788 | ; 6: The version of the ABI that doesn't promote scoped enums to int and |
789 | ; changes the mangling of template argument packs, const/static_cast, | |
790 | ; prefix ++ and --, and a class scope function used as a template | |
791 | ; argument. | |
72fc0f64 | 792 | ; First selectable in G++ 4.7. |
793 | ; | |
fbcdace8 | 794 | ; 7: The version of the ABI that treats nullptr_t as a builtin type. |
795 | ; First selectable in G++ 4.8. | |
82a16202 | 796 | ; Additional positive integers will be assigned as new versions of |
797 | ; the ABI become the default version of the ABI. | |
e100aadc | 798 | fabi-version= |
212cc995 | 799 | Common Joined RejectNegative UInteger Var(flag_abi_version) Init(2) |
e100aadc | 800 | |
ecdb6d1a | 801 | falign-functions |
46f8e3b0 | 802 | Common Report Var(align_functions,0) Optimization UInteger |
72528c71 | 803 | Align the start of functions |
ecdb6d1a | 804 | |
941a4893 | 805 | falign-functions= |
6bd9d862 | 806 | Common RejectNegative Joined UInteger Var(align_functions) |
941a4893 | 807 | |
ecdb6d1a | 808 | falign-jumps |
46f8e3b0 | 809 | Common Report Var(align_jumps,0) Optimization UInteger |
72528c71 | 810 | Align labels which are only reached by jumping |
ecdb6d1a | 811 | |
941a4893 | 812 | falign-jumps= |
6bd9d862 | 813 | Common RejectNegative Joined UInteger Var(align_jumps) |
941a4893 | 814 | |
ecdb6d1a | 815 | falign-labels |
46f8e3b0 | 816 | Common Report Var(align_labels,0) Optimization UInteger |
72528c71 | 817 | Align all labels |
ecdb6d1a | 818 | |
941a4893 | 819 | falign-labels= |
6bd9d862 | 820 | Common RejectNegative Joined UInteger Var(align_labels) |
941a4893 | 821 | |
ecdb6d1a | 822 | falign-loops |
c17f64cc | 823 | Common Report Var(align_loops,0) Optimization UInteger |
72528c71 | 824 | Align the start of loops |
ecdb6d1a | 825 | |
941a4893 | 826 | falign-loops= |
6bd9d862 | 827 | Common RejectNegative Joined UInteger Var(align_loops) |
941a4893 | 828 | |
ecdb6d1a | 829 | fargument-alias |
3b0273a1 | 830 | Common Ignore |
e190b18a | 831 | Does nothing. Preserved for backward compatibility. |
ecdb6d1a | 832 | |
833 | fargument-noalias | |
3b0273a1 | 834 | Common Ignore |
e190b18a | 835 | Does nothing. Preserved for backward compatibility. |
ecdb6d1a | 836 | |
837 | fargument-noalias-global | |
3b0273a1 | 838 | Common Ignore |
e190b18a | 839 | Does nothing. Preserved for backward compatibility. |
ecdb6d1a | 840 | |
5ff22aea | 841 | fargument-noalias-anything |
3b0273a1 | 842 | Common Ignore |
e190b18a | 843 | Does nothing. Preserved for backward compatibility. |
5ff22aea | 844 | |
ecdb6d1a | 845 | fasynchronous-unwind-tables |
87c75316 | 846 | Common Report Var(flag_asynchronous_unwind_tables) Optimization |
72528c71 | 847 | Generate unwind tables that are exact at each instruction boundary |
ecdb6d1a | 848 | |
3072d30e | 849 | fauto-inc-dec |
850 | Common Report Var(flag_auto_inc_dec) Init(1) | |
851 | Generate auto-inc/dec instructions | |
852 | ||
82a16202 | 853 | ; -fcheck-bounds causes gcc to generate array bounds checks. |
854 | ; For C, C++ and ObjC: defaults off. | |
855 | ; For Java: defaults to on. | |
856 | ; For Fortran: defaults to off. | |
ecdb6d1a | 857 | fbounds-check |
2e9da478 | 858 | Common Report Var(flag_bounds_check) |
72528c71 | 859 | Generate code to check bounds before indexing arrays |
ecdb6d1a | 860 | |
861 | fbranch-count-reg | |
87c75316 | 862 | Common Report Var(flag_branch_on_count_reg) Init(1) Optimization |
72528c71 | 863 | Replace add, compare, branch with branch on count register |
ecdb6d1a | 864 | |
865 | fbranch-probabilities | |
87c75316 | 866 | Common Report Var(flag_branch_probabilities) Optimization |
72528c71 | 867 | Use profiling information for branch probabilities |
ecdb6d1a | 868 | |
1e06725a | 869 | fbranch-target-load-optimize |
87c75316 | 870 | Common Report Var(flag_branch_target_load_optimize) Optimization |
72528c71 | 871 | Perform branch target load optimization before prologue / epilogue threading |
1e06725a | 872 | |
873 | fbranch-target-load-optimize2 | |
87c75316 | 874 | Common Report Var(flag_branch_target_load_optimize2) Optimization |
72528c71 | 875 | Perform branch target load optimization after prologue / epilogue threading |
1e06725a | 876 | |
08d163a9 | 877 | fbtr-bb-exclusive |
87c75316 | 878 | Common Report Var(flag_btr_bb_exclusive) Optimization |
08d163a9 | 879 | Restrict target load migration not to re-use registers in any basic block |
880 | ||
941a4893 | 881 | fcall-saved- |
f0da0668 | 882 | Common Joined RejectNegative Var(common_deferred_options) Defer |
53b8e5c1 | 883 | -fcall-saved-<register> Mark <register> as being preserved across functions |
941a4893 | 884 | |
885 | fcall-used- | |
f0da0668 | 886 | Common Joined RejectNegative Var(common_deferred_options) Defer |
53b8e5c1 | 887 | -fcall-used-<register> Mark <register> as being corrupted by function calls |
941a4893 | 888 | |
82a16202 | 889 | ; Nonzero for -fcaller-saves: allocate values in regs that need to |
890 | ; be saved across function calls, if that produces overall better code. | |
891 | ; Optional now, so people can test it. | |
1e06725a | 892 | fcaller-saves |
87c75316 | 893 | Common Report Var(flag_caller_saves) Optimization |
72528c71 | 894 | Save registers around function calls |
1e06725a | 895 | |
355572cc | 896 | fcheck-data-deps |
897 | Common Report Var(flag_check_data_deps) | |
898 | Compare the results of several data dependence analyzers. | |
899 | ||
bbb0a662 | 900 | fcombine-stack-adjustments |
901 | Common Report Var(flag_combine_stack_adjustments) Optimization | |
902 | Looks for opportunities to reduce stack adjustments and stack references. | |
903 | ||
ecdb6d1a | 904 | fcommon |
87c75316 | 905 | Common Report Var(flag_no_common,0) Optimization |
72528c71 | 906 | Do not put uninitialized globals in the common section |
ecdb6d1a | 907 | |
e28aa114 | 908 | fcompare-debug |
909 | Driver | |
910 | ; Converted by the driver to -fcompare-debug= options. | |
911 | ||
71278019 | 912 | fcompare-debug= |
e28aa114 | 913 | Common Driver JoinedOrMissing RejectNegative Var(flag_compare_debug_opt) |
cf210371 | 914 | -fcompare-debug[=<opts>] Compile with and without e.g. -gtoggle, and compare the final-insns dump |
71278019 | 915 | |
916 | fcompare-debug-second | |
ab3728ee | 917 | Common Driver RejectNegative Var(flag_compare_debug) |
71278019 | 918 | Run only the second compilation of -fcompare-debug |
919 | ||
a50372fe | 920 | fcompare-elim |
921 | Common Report Var(flag_compare_elim_after_reload) Optimization | |
922 | Perform comparison elimination after register allocation has finished | |
923 | ||
9845d120 | 924 | fconserve-stack |
925 | Common Var(flag_conserve_stack) Optimization | |
926 | Do not perform optimizations increasing noticeably stack usage | |
927 | ||
ecdb6d1a | 928 | fcprop-registers |
87c75316 | 929 | Common Report Var(flag_cprop_registers) Optimization |
72528c71 | 930 | Perform a register copy-propagation optimization pass |
ecdb6d1a | 931 | |
1e06725a | 932 | fcrossjumping |
87c75316 | 933 | Common Report Var(flag_crossjumping) Optimization |
72528c71 | 934 | Perform cross-jumping optimization |
1e06725a | 935 | |
936 | fcse-follow-jumps | |
87c75316 | 937 | Common Report Var(flag_cse_follow_jumps) Optimization |
72528c71 | 938 | When running CSE, follow jumps to their targets |
1e06725a | 939 | |
940 | fcse-skip-blocks | |
3b0273a1 | 941 | Common Ignore |
d743aba2 | 942 | Does nothing. Preserved for backward compatibility. |
1e06725a | 943 | |
45b9d334 | 944 | fcx-limited-range |
ecee1b29 | 945 | Common Report Var(flag_cx_limited_range) Optimization SetByCombined |
45b9d334 | 946 | Omit range reduction step when performing complex division |
947 | ||
608256a0 | 948 | fcx-fortran-rules |
949 | Common Report Var(flag_cx_fortran_rules) Optimization | |
950 | Complex multiplication and division follow Fortran rules | |
951 | ||
ecdb6d1a | 952 | fdata-sections |
87c75316 | 953 | Common Report Var(flag_data_sections) Optimization |
72528c71 | 954 | Place data items into their own section |
ecdb6d1a | 955 | |
d2153a46 | 956 | fdbg-cnt-list |
9faf44d6 | 957 | Common Report Var(common_deferred_options) Defer |
d2153a46 | 958 | List all available debugging counters with their limits and counts. |
959 | ||
3072d30e | 960 | fdbg-cnt= |
9faf44d6 | 961 | Common RejectNegative Joined Var(common_deferred_options) Defer |
cf210371 | 962 | -fdbg-cnt=<counter>:<limit>[,<counter>:<limit>,...] Set the debug counter limit. |
3072d30e | 963 | |
5f1f2de5 | 964 | fdebug-prefix-map= |
9faf44d6 | 965 | Common Joined RejectNegative Var(common_deferred_options) Defer |
5f1f2de5 | 966 | Map one directory name to another in debug information |
967 | ||
240a87ff | 968 | fdebug-types-section |
052166fd | 969 | Common Report Var(flag_debug_types_section) Init(0) |
240a87ff | 970 | Output .debug_types section when using DWARF v4 debuginfo. |
971 | ||
82a16202 | 972 | ; Nonzero for -fdefer-pop: don't pop args after each function call |
973 | ; instead save them up to pop many calls' args with one insns. | |
1e06725a | 974 | fdefer-pop |
87c75316 | 975 | Common Report Var(flag_defer_pop) Optimization |
72528c71 | 976 | Defer popping functions args from stack until later |
1e06725a | 977 | |
978 | fdelayed-branch | |
87c75316 | 979 | Common Report Var(flag_delayed_branch) Optimization |
72528c71 | 980 | Attempt to fill delay slots of branch instructions |
1e06725a | 981 | |
bc0dfc8d | 982 | fdelete-dead-exceptions |
983 | Common Report Var(flag_delete_dead_exceptions) Init(0) | |
984 | Delete dead instructions that may throw exceptions | |
985 | ||
1e06725a | 986 | fdelete-null-pointer-checks |
7df298fe | 987 | Common Report Var(flag_delete_null_pointer_checks) Init(1) Optimization |
72528c71 | 988 | Delete useless null pointer checks |
1e06725a | 989 | |
16358a63 | 990 | fdevirtualize |
991 | Common Report Var(flag_devirtualize) Optimization | |
992 | Try to convert virtual calls to direct ones. | |
993 | ||
1e06725a | 994 | fdiagnostics-show-location= |
d62a5950 | 995 | Common Joined RejectNegative Enum(diagnostic_prefixing_rule) |
53b8e5c1 | 996 | -fdiagnostics-show-location=[once|every-line] How often to emit source location at the beginning of line-wrapped diagnostics |
1e06725a | 997 | |
d62a5950 | 998 | ; Required for these enum values. |
999 | SourceInclude | |
1000 | pretty-print.h | |
1001 | ||
1002 | Enum | |
1003 | Name(diagnostic_prefixing_rule) Type(int) | |
1004 | ||
1005 | EnumValue | |
1006 | Enum(diagnostic_prefixing_rule) String(once) Value(DIAGNOSTICS_SHOW_PREFIX_ONCE) | |
1007 | ||
1008 | EnumValue | |
1009 | Enum(diagnostic_prefixing_rule) String(every-line) Value(DIAGNOSTICS_SHOW_PREFIX_EVERY_LINE) | |
1010 | ||
5a983084 | 1011 | fdiagnostics-show-caret |
1012 | Common Var(flag_diagnostics_show_caret) Init(1) | |
1013 | Show the source line with a caret indicating the column | |
1014 | ||
efb9d9ee | 1015 | fdiagnostics-show-option |
3fee9a69 | 1016 | Common Var(flag_diagnostics_show_option) Init(1) |
3284a242 | 1017 | Amend appropriate diagnostic messages with the command line option that controls them |
efb9d9ee | 1018 | |
c3087ce0 | 1019 | fdisable- |
1020 | Common Joined RejectNegative Var(common_deferred_options) Defer | |
1021 | -fdisable-[tree|rtl|ipa]-<pass>=range1+range2 disables an optimization pass | |
1022 | ||
1023 | fenable- | |
1024 | Common Joined RejectNegative Var(common_deferred_options) Defer | |
1025 | -fenable-[tree|rtl|ipa]-<pass>=range1+range2 enables an optimization pass | |
1026 | ||
4ee9c684 | 1027 | fdump- |
f0da0668 | 1028 | Common Joined RejectNegative Var(common_deferred_options) Defer |
4ee9c684 | 1029 | -fdump-<type> Dump various compiler internals to a file |
1030 | ||
0b1d266f | 1031 | fdump-final-insns |
1032 | Driver RejectNegative | |
1033 | ||
71278019 | 1034 | fdump-final-insns= |
1035 | Common RejectNegative Joined Var(flag_dump_final_insns) | |
1036 | -fdump-final-insns=filename Dump to filename the insns at the end of translation | |
1037 | ||
929d2a90 | 1038 | fdump-go-spec= |
1039 | Common RejectNegative Joined Var(flag_dump_go_spec) | |
1040 | -fdump-go-spec=filename Write all declarations to file as Go code | |
1041 | ||
969239ad | 1042 | fdump-noaddr |
1043 | Common Report Var(flag_dump_noaddr) | |
1044 | Suppress output of addresses in debugging dumps | |
1045 | ||
ec4791a8 | 1046 | fdump-passes |
1047 | Common Var(flag_dump_passes) Init(0) | |
1048 | Dump optimization passes | |
1049 | ||
ecdb6d1a | 1050 | fdump-unnumbered |
0f8defe5 | 1051 | Common Report Var(flag_dump_unnumbered) |
969239ad | 1052 | Suppress output of instruction numbers, line number notes and addresses in debugging dumps |
ecdb6d1a | 1053 | |
0a59e439 | 1054 | fdump-unnumbered-links |
0f8defe5 | 1055 | Common Report Var(flag_dump_unnumbered_links) |
0a59e439 | 1056 | Suppress output of previous and next insn numbers in debugging dumps |
1057 | ||
9845d120 | 1058 | fdwarf2-cfi-asm |
1059 | Common Report Var(flag_dwarf2_cfi_asm) Init(HAVE_GAS_CFI_DIRECTIVE) | |
1060 | Enable CFI tables via GAS assembler directives. | |
1061 | ||
f1aa280c | 1062 | fearly-inlining |
87c75316 | 1063 | Common Report Var(flag_early_inlining) Init(1) Optimization |
f1aa280c | 1064 | Perform early inlining |
1065 | ||
1e06725a | 1066 | feliminate-dwarf2-dups |
2e9da478 | 1067 | Common Report Var(flag_eliminate_dwarf2_dups) |
72528c71 | 1068 | Perform DWARF2 duplicate elimination |
1e06725a | 1069 | |
2f29eac3 | 1070 | fipa-sra |
1071 | Common Report Var(flag_ipa_sra) Init(0) Optimization | |
1072 | Perform interprocedural reduction of aggregates | |
1073 | ||
262444a6 | 1074 | feliminate-unused-debug-symbols |
2e9da478 | 1075 | Common Report Var(flag_debug_only_used_symbols) |
72528c71 | 1076 | Perform unused type elimination in debug info |
262444a6 | 1077 | |
1e06725a | 1078 | feliminate-unused-debug-types |
2e9da478 | 1079 | Common Report Var(flag_eliminate_unused_debug_types) Init(1) |
72528c71 | 1080 | Perform unused type elimination in debug info |
1e06725a | 1081 | |
0c573f98 | 1082 | femit-class-debug-always |
fd5e1dfe | 1083 | Common Report Var(flag_emit_class_debug_always) Init(0) |
0c573f98 | 1084 | Do not suppress C++ class debug information. |
1085 | ||
ecdb6d1a | 1086 | fexceptions |
87c75316 | 1087 | Common Report Var(flag_exceptions) Optimization |
72528c71 | 1088 | Enable exception handling |
ecdb6d1a | 1089 | |
1e06725a | 1090 | fexpensive-optimizations |
87c75316 | 1091 | Common Report Var(flag_expensive_optimizations) Optimization |
72528c71 | 1092 | Perform a number of minor, expensive optimizations |
1e06725a | 1093 | |
c6418a4e | 1094 | fexcess-precision= |
d62a5950 | 1095 | Common Joined RejectNegative Enum(excess_precision) Var(flag_excess_precision_cmdline) Init(EXCESS_PRECISION_DEFAULT) |
c6418a4e | 1096 | -fexcess-precision=[fast|standard] Specify handling of excess floating-point precision |
1097 | ||
d62a5950 | 1098 | Enum |
1099 | Name(excess_precision) Type(enum excess_precision) UnknownError(unknown excess precision style %qs) | |
1100 | ||
1101 | EnumValue | |
1102 | Enum(excess_precision) String(fast) Value(EXCESS_PRECISION_FAST) | |
1103 | ||
1104 | EnumValue | |
1105 | Enum(excess_precision) String(standard) Value(EXCESS_PRECISION_STANDARD) | |
1106 | ||
941a4893 | 1107 | ffast-math |
1108 | Common | |
1109 | ||
b33542ab | 1110 | ffat-lto-objects |
1111 | Common Var(flag_fat_lto_objects) Init(1) | |
1112 | Output lto objects containing both the intermediate language and binary output. | |
1113 | ||
ecdb6d1a | 1114 | ffinite-math-only |
ecee1b29 | 1115 | Common Report Var(flag_finite_math_only) Optimization SetByCombined |
72528c71 | 1116 | Assume no NaNs or infinities are generated |
ecdb6d1a | 1117 | |
941a4893 | 1118 | ffixed- |
f0da0668 | 1119 | Common Joined RejectNegative Var(common_deferred_options) Defer |
53b8e5c1 | 1120 | -ffixed-<register> Mark <register> as being unavailable to the compiler |
941a4893 | 1121 | |
1e06725a | 1122 | ffloat-store |
87c75316 | 1123 | Common Report Var(flag_float_store) Optimization |
82a16202 | 1124 | Don't allocate floats and doubles in extended-precision registers |
1e06725a | 1125 | |
1126 | fforce-addr | |
3b0273a1 | 1127 | Common Ignore |
4d25f9eb | 1128 | Does nothing. Preserved for backward compatibility. |
1e06725a | 1129 | |
55d51835 | 1130 | fforward-propagate |
1131 | Common Report Var(flag_forward_propagate) Optimization | |
42a3a38b | 1132 | Perform a forward propagation pass on RTL |
1133 | ||
b9be572e | 1134 | ffp-contract= |
d62a5950 | 1135 | Common Joined RejectNegative Enum(fp_contract_mode) Var(flag_fp_contract_mode) Init(FP_CONTRACT_FAST) |
b9be572e | 1136 | -ffp-contract=[off|on|fast] Perform floating-point expression contraction. |
1137 | ||
d62a5950 | 1138 | Enum |
1139 | Name(fp_contract_mode) Type(enum fp_contract_mode) UnknownError(unknown floating point contraction style %qs) | |
1140 | ||
1141 | EnumValue | |
1142 | Enum(fp_contract_mode) String(off) Value(FP_CONTRACT_OFF) | |
1143 | ||
1144 | ; Not implemented, fall back to conservative FP_CONTRACT_OFF. | |
1145 | EnumValue | |
1146 | Enum(fp_contract_mode) String(on) Value(FP_CONTRACT_OFF) | |
1147 | ||
1148 | EnumValue | |
1149 | Enum(fp_contract_mode) String(fast) Value(FP_CONTRACT_FAST) | |
1150 | ||
82a16202 | 1151 | ; Nonzero means don't put addresses of constant functions in registers. |
1152 | ; Used for compiling the Unix kernel, where strange substitutions are | |
1153 | ; done on the assembly output. | |
1e06725a | 1154 | ffunction-cse |
2e9da478 | 1155 | Common Report Var(flag_no_function_cse,0) |
72528c71 | 1156 | Allow function addresses to be held in registers |
1e06725a | 1157 | |
ecdb6d1a | 1158 | ffunction-sections |
2e9da478 | 1159 | Common Report Var(flag_function_sections) |
72528c71 | 1160 | Place each function into its own section |
ecdb6d1a | 1161 | |
1e06725a | 1162 | fgcse |
87c75316 | 1163 | Common Report Var(flag_gcse) Optimization |
72528c71 | 1164 | Perform global common subexpression elimination |
1e06725a | 1165 | |
1166 | fgcse-lm | |
87c75316 | 1167 | Common Report Var(flag_gcse_lm) Init(1) Optimization |
72528c71 | 1168 | Perform enhanced load motion during global common subexpression elimination |
1e06725a | 1169 | |
1170 | fgcse-sm | |
87c75316 | 1171 | Common Report Var(flag_gcse_sm) Init(0) Optimization |
72528c71 | 1172 | Perform store motion after global common subexpression elimination |
1e06725a | 1173 | |
5c47e414 | 1174 | fgcse-las |
87c75316 | 1175 | Common Report Var(flag_gcse_las) Init(0) Optimization |
839f8415 | 1176 | Perform redundant load after store elimination in global common subexpression |
1177 | elimination | |
1178 | ||
1179 | fgcse-after-reload | |
87c75316 | 1180 | Common Report Var(flag_gcse_after_reload) Optimization |
839f8415 | 1181 | Perform global common subexpression elimination after register allocation |
3284a242 | 1182 | has finished |
5c47e414 | 1183 | |
d3399492 | 1184 | ; This option is not documented yet as its semantics will change. |
255b6be7 | 1185 | fgraphite |
1186 | Common Report Var(flag_graphite) | |
1187 | Enable in and out of Graphite representation | |
1188 | ||
26c166eb | 1189 | fgraphite-identity |
1190 | Common Report Var(flag_graphite_identity) Optimization | |
1191 | Enable Graphite Identity transformation | |
1192 | ||
239e9670 | 1193 | fhoist-adjacent-loads |
1194 | Common Report Var(flag_hoist_adjacent_loads) Optimization | |
1195 | Enable hoisting adjacent loads to encourage generating conditional move | |
1196 | instructions | |
1197 | ||
16848556 | 1198 | floop-parallelize-all |
1199 | Common Report Var(flag_loop_parallelize_all) Optimization | |
26c166eb | 1200 | Mark all loops as parallel |
1201 | ||
255b6be7 | 1202 | floop-strip-mine |
1203 | Common Report Var(flag_loop_strip_mine) Optimization | |
1204 | Enable Loop Strip Mining transformation | |
1205 | ||
1206 | floop-interchange | |
1207 | Common Report Var(flag_loop_interchange) Optimization | |
1208 | Enable Loop Interchange transformation | |
1209 | ||
1210 | floop-block | |
1211 | Common Report Var(flag_loop_block) Optimization | |
1212 | Enable Loop Blocking transformation | |
1213 | ||
4c0315d0 | 1214 | fgnu-tm |
1215 | Common Report Var(flag_tm) | |
1216 | Enable support for GNU transactional memory | |
1217 | ||
d60a90cc | 1218 | floop-flatten |
d094f1d6 | 1219 | Common Ignore |
1220 | Does nothing. Preserved for backward compatibility. | |
d60a90cc | 1221 | |
89049f25 | 1222 | floop-nest-optimize |
1223 | Common Report Var(flag_loop_optimize_isl) Optimization | |
1224 | Enable the ISL based loop nest optimizer | |
1225 | ||
a420d927 | 1226 | fstrict-volatile-bitfields |
1227 | Common Report Var(flag_strict_volatile_bitfields) Init(-1) | |
1228 | Force bitfield accesses to match their type width | |
1229 | ||
ecdb6d1a | 1230 | fguess-branch-probability |
87c75316 | 1231 | Common Report Var(flag_guess_branch_prob) Optimization |
72528c71 | 1232 | Enable guessing of branch probabilities |
ecdb6d1a | 1233 | |
82a16202 | 1234 | ; Nonzero means ignore `#ident' directives. 0 means handle them. |
1235 | ; Generate position-independent code for executables if possible | |
1236 | ; On SVR4 targets, it also controls whether or not to emit a | |
1237 | ; string identifying the compiler. | |
ecdb6d1a | 1238 | fident |
2e9da478 | 1239 | Common Report Var(flag_no_ident,0) |
72528c71 | 1240 | Process #ident directives |
ecdb6d1a | 1241 | |
1e06725a | 1242 | fif-conversion |
87c75316 | 1243 | Common Report Var(flag_if_conversion) Optimization |
72528c71 | 1244 | Perform conversion of conditional jumps to branchless equivalents |
1e06725a | 1245 | |
1246 | fif-conversion2 | |
87c75316 | 1247 | Common Report Var(flag_if_conversion2) Optimization |
72528c71 | 1248 | Perform conversion of conditional jumps to conditional execution |
1e06725a | 1249 | |
0cb1935d | 1250 | ftree-loop-if-convert |
1251 | Common Report Var(flag_tree_loop_if_convert) Init(-1) Optimization | |
1252 | Convert conditional jumps in innermost loops to branchless equivalents | |
1253 | ||
3b91ccd9 | 1254 | ftree-loop-if-convert-stores |
1255 | Common Report Var(flag_tree_loop_if_convert_stores) Optimization | |
1256 | Also if-convert conditional jumps containing memory writes | |
1257 | ||
82a16202 | 1258 | ; -finhibit-size-directive inhibits output of .size for ELF. |
1259 | ; This is used only for compiling crtstuff.c, | |
1260 | ; and it may be extended to other effects | |
1261 | ; needed for crtstuff.c on other systems. | |
ecdb6d1a | 1262 | finhibit-size-directive |
2e9da478 | 1263 | Common Report Var(flag_inhibit_size_directive) |
72528c71 | 1264 | Do not generate .size directives |
ecdb6d1a | 1265 | |
f8daee9b | 1266 | findirect-inlining |
1267 | Common Report Var(flag_indirect_inlining) | |
1268 | Perform indirect inlining | |
1269 | ||
b75cad1f | 1270 | ; General flag to enable inlining. Specifying -fno-inline will disable |
1271 | ; all inlining apart from always-inline functions. | |
1e06725a | 1272 | finline |
1c2f0012 | 1273 | Common Report Var(flag_no_inline,0) Init(0) |
b75cad1f | 1274 | Enable inlining of function declared \"inline\", disabling disables all inlining |
1e06725a | 1275 | |
b97510b2 | 1276 | finline-small-functions |
1277 | Common Report Var(flag_inline_small_functions) Optimization | |
b75cad1f | 1278 | Integrate functions into their callers when code size is known not to grow |
b97510b2 | 1279 | |
1e06725a | 1280 | finline-functions |
87c75316 | 1281 | Common Report Var(flag_inline_functions) Optimization |
b75cad1f | 1282 | Integrate functions not declared \"inline\" into their callers when profitable |
1e06725a | 1283 | |
f1aa280c | 1284 | finline-functions-called-once |
055af069 | 1285 | Common Report Var(flag_inline_functions_called_once) Optimization |
b75cad1f | 1286 | Integrate functions only required by their single caller |
9e0baf4d | 1287 | |
39470ac3 | 1288 | finline-limit- |
67089c6b | 1289 | Common RejectNegative Joined Alias(finline-limit=) |
39470ac3 | 1290 | |
1291 | finline-limit= | |
1292 | Common RejectNegative Joined UInteger | |
53b8e5c1 | 1293 | -finline-limit=<number> Limit the size of inlined functions to <number> |
39470ac3 | 1294 | |
1cd6e20d | 1295 | finline-atomics |
1296 | Common Report Var(flag_inline_atomics) Init(1) Optimization | |
1297 | Inline __atomic operations when a lock free instruction sequence is available. | |
1298 | ||
ecdb6d1a | 1299 | finstrument-functions |
2e9da478 | 1300 | Common Report Var(flag_instrument_function_entry_exit) |
72528c71 | 1301 | Instrument function entry and exit with profiling calls |
ecdb6d1a | 1302 | |
a95c0776 | 1303 | finstrument-functions-exclude-function-list= |
1304 | Common RejectNegative Joined | |
1305 | -finstrument-functions-exclude-function-list=name,... Do not instrument listed functions | |
1306 | ||
1307 | finstrument-functions-exclude-file-list= | |
1308 | Common RejectNegative Joined | |
1309 | -finstrument-functions-exclude-file-list=filename,... Do not instrument functions listed in files | |
1310 | ||
a17a73c7 | 1311 | fipa-cp |
87c75316 | 1312 | Common Report Var(flag_ipa_cp) Optimization |
a17a73c7 | 1313 | Perform Interprocedural constant propagation |
1314 | ||
2a15795f | 1315 | fipa-cp-clone |
1316 | Common Report Var(flag_ipa_cp_clone) Optimization | |
1317 | Perform cloning to make Interprocedural constant propagation stronger | |
1318 | ||
4e2db0ad | 1319 | fipa-profile |
1320 | Common Report Var(flag_ipa_profile) Init(0) Optimization | |
1321 | Perform interprocedural profile propagation | |
f7d118a9 | 1322 | |
bdf4f142 | 1323 | fipa-pta |
87c75316 | 1324 | Common Report Var(flag_ipa_pta) Init(0) Optimization |
bdf4f142 | 1325 | Perform interprocedural points-to analysis |
1326 | ||
4e2db0ad | 1327 | fipa-pure-const |
1328 | Common Report Var(flag_ipa_pure_const) Init(0) Optimization | |
1329 | Discover pure and const functions | |
1330 | ||
f7d118a9 | 1331 | fipa-reference |
87c75316 | 1332 | Common Report Var(flag_ipa_reference) Init(0) Optimization |
f7d118a9 | 1333 | Discover readonly and non addressable static variables |
1334 | ||
604cde73 | 1335 | fipa-matrix-reorg |
76c71f34 | 1336 | Common Report Var(flag_ipa_matrix_reorg) Optimization |
604cde73 | 1337 | Perform matrix layout flattening and transposing based |
1338 | on profiling information. | |
1339 | ||
f27ac341 | 1340 | fipa-struct-reorg |
210a8eb6 | 1341 | Common Ignore |
1342 | Does nothing. Preserved for backward compatibility. | |
f27ac341 | 1343 | |
47dd2e78 | 1344 | fira-algorithm= |
d62a5950 | 1345 | Common Joined RejectNegative Enum(ira_algorithm) Var(flag_ira_algorithm) Init(IRA_ALGORITHM_CB) |
14792f4e | 1346 | -fira-algorithm=[CB|priority] Set the used IRA algorithm |
1347 | ||
d62a5950 | 1348 | Enum |
1349 | Name(ira_algorithm) Type(enum ira_algorithm) UnknownError(unknown IRA algorithm %qs) | |
1350 | ||
1351 | EnumValue | |
1352 | Enum(ira_algorithm) String(CB) Value(IRA_ALGORITHM_CB) | |
1353 | ||
1354 | EnumValue | |
1355 | Enum(ira_algorithm) String(priority) Value(IRA_ALGORITHM_PRIORITY) | |
1356 | ||
14792f4e | 1357 | fira-region= |
0cb057cb | 1358 | Common Joined RejectNegative Enum(ira_region) Var(flag_ira_region) Init(IRA_REGION_AUTODETECT) |
14792f4e | 1359 | -fira-region=[one|all|mixed] Set regions for IRA |
47dd2e78 | 1360 | |
d62a5950 | 1361 | Enum |
1362 | Name(ira_region) Type(enum ira_region) UnknownError(unknown IRA region %qs) | |
1363 | ||
1364 | EnumValue | |
1365 | Enum(ira_region) String(one) Value(IRA_REGION_ONE) | |
1366 | ||
1367 | EnumValue | |
1368 | Enum(ira_region) String(all) Value(IRA_REGION_ALL) | |
1369 | ||
1370 | EnumValue | |
1371 | Enum(ira_region) String(mixed) Value(IRA_REGION_MIXED) | |
1372 | ||
e8eed2f8 | 1373 | fira-loop-pressure |
1374 | Common Report Var(flag_ira_loop_pressure) | |
1375 | Use IRA based register pressure calculation | |
1376 | in RTL loop optimizations. | |
1377 | ||
47dd2e78 | 1378 | fira-share-save-slots |
1379 | Common Report Var(flag_ira_share_save_slots) Init(1) | |
1380 | Share slots for saving different hard registers. | |
1381 | ||
1382 | fira-share-spill-slots | |
1383 | Common Report Var(flag_ira_share_spill_slots) Init(1) | |
1384 | Share stack slots for spilled pseudo-registers. | |
1385 | ||
1386 | fira-verbose= | |
4aafe913 | 1387 | Common RejectNegative Joined UInteger Var(flag_ira_verbose) Init(5) |
cf210371 | 1388 | -fira-verbose=<number> Control IRA's level of diagnostic messages. |
47dd2e78 | 1389 | |
dec41e98 | 1390 | fivopts |
87c75316 | 1391 | Common Report Var(flag_ivopts) Init(1) Optimization |
dec41e98 | 1392 | Optimize induction variables on trees |
1393 | ||
51d8e657 | 1394 | fjump-tables |
87c75316 | 1395 | Common Var(flag_jump_tables) Init(1) Optimization |
51d8e657 | 1396 | Use jump tables for sufficiently large switch statements |
1397 | ||
1e06725a | 1398 | fkeep-inline-functions |
2e9da478 | 1399 | Common Report Var(flag_keep_inline_functions) |
72528c71 | 1400 | Generate code for functions even if they are fully inlined |
1e06725a | 1401 | |
1402 | fkeep-static-consts | |
2e9da478 | 1403 | Common Report Var(flag_keep_static_consts) Init(1) |
72528c71 | 1404 | Emit static const variables even if they are not used |
1e06725a | 1405 | |
ecdb6d1a | 1406 | fleading-underscore |
2e9da478 | 1407 | Common Report Var(flag_leading_underscore) Init(-1) |
72528c71 | 1408 | Give external symbols a leading underscore |
ecdb6d1a | 1409 | |
4f87b914 | 1410 | floop-optimize |
3b0273a1 | 1411 | Common Ignore |
334ec2d8 | 1412 | Does nothing. Preserved for backward compatibility. |
4f87b914 | 1413 | |
7bfefa9d | 1414 | flto |
cbcf2791 | 1415 | Common |
7bfefa9d | 1416 | Enable link-time optimization. |
1417 | ||
cbcf2791 | 1418 | flto= |
1419 | Common RejectNegative Joined Var(flag_lto) | |
1420 | Link-time optimization with number of parallel jobs or jobserver. | |
1421 | ||
48e3ea52 | 1422 | flto-partition=1to1 |
1423 | Common Var(flag_lto_partition_1to1) | |
1424 | Partition functions and vars at linktime based on object files they originate from | |
1425 | ||
1426 | flto-partition=balanced | |
1427 | Common Var(flag_lto_partition_balanced) | |
1428 | Partition functions and vars at linktime into approximately same sized buckets | |
1429 | ||
cbcf2791 | 1430 | flto-partition=none |
1431 | Common Var(flag_lto_partition_none) | |
1432 | Disable partioning and streaming | |
1433 | ||
7bfefa9d | 1434 | ; The initial value of -1 comes from Z_DEFAULT_COMPRESSION in zlib.h. |
1435 | flto-compression-level= | |
212cc995 | 1436 | Common Joined RejectNegative UInteger Var(flag_lto_compression_level) Init(-1) |
cf210371 | 1437 | -flto-compression-level=<number> Use zlib compression level <number> for IL |
7bfefa9d | 1438 | |
1439 | flto-report | |
596c40fb | 1440 | Common Report Var(flag_lto_report) Init(0) |
7bfefa9d | 1441 | Report various link-time optimization statistics |
1442 | ||
ecdb6d1a | 1443 | fmath-errno |
ecee1b29 | 1444 | Common Report Var(flag_errno_math) Init(1) Optimization SetByCombined |
72528c71 | 1445 | Set errno after built-in math functions |
ecdb6d1a | 1446 | |
566d7c74 | 1447 | fmax-errors= |
1448 | Common Joined RejectNegative UInteger Var(flag_max_errors) | |
1449 | -fmax-errors=<number> Maximum number of errors to report | |
1450 | ||
ecdb6d1a | 1451 | fmem-report |
2e9da478 | 1452 | Common Report Var(mem_report) |
72528c71 | 1453 | Report on permanent memory allocation |
ecdb6d1a | 1454 | |
82a16202 | 1455 | ; This will attempt to merge constant section constants, if 1 only |
1456 | ; string constants and constants from constant pool, if 2 also constant | |
1457 | ; variables. | |
ecdb6d1a | 1458 | fmerge-all-constants |
87c75316 | 1459 | Common Report Var(flag_merge_constants,2) Init(1) Optimization |
72528c71 | 1460 | Attempt to merge identical constants and constant variables |
ecdb6d1a | 1461 | |
1462 | fmerge-constants | |
5461e683 | 1463 | Common Report Var(flag_merge_constants,1) Optimization |
72528c71 | 1464 | Attempt to merge identical constants across compilation units |
ecdb6d1a | 1465 | |
7765591b | 1466 | fmerge-debug-strings |
1467 | Common Report Var(flag_merge_debug_strings) Init(1) | |
1468 | Attempt to merge identical debug strings across compilation units | |
1469 | ||
1e06725a | 1470 | fmessage-length= |
1471 | Common RejectNegative Joined UInteger | |
53b8e5c1 | 1472 | -fmessage-length=<number> Limit diagnostics to <number> characters per line. 0 suppresses line-wrapping |
1e06725a | 1473 | |
406a73e7 | 1474 | fmodulo-sched |
87c75316 | 1475 | Common Report Var(flag_modulo_sched) Optimization |
406a73e7 | 1476 | Perform SMS based modulo scheduling before the first scheduling pass |
1477 | ||
3a943084 | 1478 | fmodulo-sched-allow-regmoves |
1479 | Common Report Var(flag_modulo_sched_allow_regmoves) | |
1480 | Perform SMS based modulo scheduling with register moves allowed | |
1481 | ||
3a0ecac2 | 1482 | fmove-loop-invariants |
87c75316 | 1483 | Common Report Var(flag_move_loop_invariants) Init(1) Optimization |
3a0ecac2 | 1484 | Move loop invariant computations out of loops |
1485 | ||
3072d30e | 1486 | fdce |
76c71f34 | 1487 | Common Var(flag_dce) Init(1) Optimization |
3072d30e | 1488 | Use the RTL dead code elimination pass |
1489 | ||
1490 | fdse | |
76c71f34 | 1491 | Common Var(flag_dse) Init(1) Optimization |
3072d30e | 1492 | Use the RTL dead store elimination pass |
1493 | ||
f045d41d | 1494 | freschedule-modulo-scheduled-loops |
87c75316 | 1495 | Common Report Var(flag_resched_modulo_sched) Optimization |
f045d41d | 1496 | Enable/Disable the traditional scheduling in loops that already passed modulo scheduling |
1497 | ||
ecdb6d1a | 1498 | fnon-call-exceptions |
87c75316 | 1499 | Common Report Var(flag_non_call_exceptions) Optimization |
72528c71 | 1500 | Support synchronous non-call exceptions |
ecdb6d1a | 1501 | |
1e06725a | 1502 | fomit-frame-pointer |
87c75316 | 1503 | Common Report Var(flag_omit_frame_pointer) Optimization |
72528c71 | 1504 | When possible do not generate stack frames |
1e06725a | 1505 | |
ecdb6d1a | 1506 | foptimize-register-move |
87c75316 | 1507 | Common Report Var(flag_regmove) Optimization |
72528c71 | 1508 | Do the full register move optimization pass |
ecdb6d1a | 1509 | |
1e06725a | 1510 | foptimize-sibling-calls |
87c75316 | 1511 | Common Report Var(flag_optimize_sibling_calls) Optimization |
72528c71 | 1512 | Optimize sibling and tail recursive calls |
1e06725a | 1513 | |
2862cf88 | 1514 | fpartial-inlining |
1515 | Common Report Var(flag_partial_inlining) | |
1516 | Perform partial inlining | |
1517 | ||
51949610 | 1518 | fpre-ipa-mem-report |
1519 | Common Report Var(pre_ipa_mem_report) | |
1520 | Report on memory allocation before interprocedural optimization | |
1521 | ||
1522 | fpost-ipa-mem-report | |
1523 | Common Report Var(post_ipa_mem_report) | |
1524 | Report on memory allocation before interprocedural optimization | |
1525 | ||
ecdb6d1a | 1526 | fpack-struct |
87c75316 | 1527 | Common Report Var(flag_pack_struct) Optimization |
72528c71 | 1528 | Pack structure members together without holes |
ecdb6d1a | 1529 | |
6b5553e5 | 1530 | fpack-struct= |
87c75316 | 1531 | Common RejectNegative Joined UInteger Optimization |
6b5553e5 | 1532 | -fpack-struct=<number> Set initial maximum structure member alignment |
1533 | ||
1e06725a | 1534 | fpcc-struct-return |
4aafe913 | 1535 | Common Report Var(flag_pcc_struct_return,1) Init(DEFAULT_PCC_STRUCT_RETURN) |
72528c71 | 1536 | Return small aggregates in memory, not registers |
1e06725a | 1537 | |
1538 | fpeel-loops | |
87c75316 | 1539 | Common Report Var(flag_peel_loops) Optimization |
72528c71 | 1540 | Perform loop peeling |
1e06725a | 1541 | |
1542 | fpeephole | |
87c75316 | 1543 | Common Report Var(flag_no_peephole,0) Optimization |
72528c71 | 1544 | Enable machine specific peephole optimizations |
1e06725a | 1545 | |
ecdb6d1a | 1546 | fpeephole2 |
87c75316 | 1547 | Common Report Var(flag_peephole2) Optimization |
72528c71 | 1548 | Enable an RTL peephole pass before sched2 |
ecdb6d1a | 1549 | |
82a16202 | 1550 | fPIC |
1551 | Common Report Var(flag_pic,2) | |
1552 | Generate position-independent code if possible (large mode) | |
1553 | ||
1554 | fPIE | |
1555 | Common Report Var(flag_pie,2) | |
1556 | Generate position-independent code for executables if possible (large mode) | |
1557 | ||
ecdb6d1a | 1558 | fpic |
5461e683 | 1559 | Common Report Var(flag_pic,1) |
82a16202 | 1560 | Generate position-independent code if possible (small mode) |
ecdb6d1a | 1561 | |
1562 | fpie | |
5461e683 | 1563 | Common Report Var(flag_pie,1) |
82a16202 | 1564 | Generate position-independent code for executables if possible (small mode) |
ecdb6d1a | 1565 | |
9227b6fc | 1566 | fplugin= |
f0da0668 | 1567 | Common Joined RejectNegative Var(common_deferred_options) Defer |
9227b6fc | 1568 | Specify a plugin to load |
1569 | ||
1570 | fplugin-arg- | |
f0da0668 | 1571 | Common Joined RejectNegative Var(common_deferred_options) Defer |
cf210371 | 1572 | -fplugin-arg-<name>-<key>[=<value>] Specify argument <key>=<value> for plugin <name> |
9227b6fc | 1573 | |
ad4a85ad | 1574 | fpredictive-commoning |
76c71f34 | 1575 | Common Report Var(flag_predictive_commoning) Optimization |
ad4a85ad | 1576 | Run predictive commoning optimization. |
1577 | ||
1e06725a | 1578 | fprefetch-loop-arrays |
cd459e62 | 1579 | Common Report Var(flag_prefetch_loop_arrays) Init(-1) Optimization |
72528c71 | 1580 | Generate prefetch instructions, if available, for arrays in loops |
1e06725a | 1581 | |
ecdb6d1a | 1582 | fprofile |
2e9da478 | 1583 | Common Report Var(profile_flag) |
72528c71 | 1584 | Enable basic program profiling code |
ecdb6d1a | 1585 | |
1586 | fprofile-arcs | |
2e9da478 | 1587 | Common Report Var(profile_arc_flag) |
72528c71 | 1588 | Insert arc-based program profiling code |
ecdb6d1a | 1589 | |
3e3a0e9c | 1590 | fprofile-dir= |
cc4fa57a | 1591 | Common Joined RejectNegative Var(profile_data_prefix) |
3e3a0e9c | 1592 | Set the top-level directory for storing the profile data. |
1593 | The default is 'pwd'. | |
1594 | ||
e0dc6f2b | 1595 | fprofile-correction |
1596 | Common Report Var(flag_profile_correction) | |
1597 | Enable correction of flow inconsistent profile data input | |
1598 | ||
7dea76ba | 1599 | fprofile-generate |
1600 | Common | |
1601 | Enable common options for generating profile info for profile feedback directed optimizations | |
1602 | ||
3e3a0e9c | 1603 | fprofile-generate= |
1604 | Common Joined RejectNegative | |
1605 | Enable common options for generating profile info for profile feedback directed optimizations, and set -fprofile-dir= | |
1606 | ||
7dea76ba | 1607 | fprofile-use |
3e3a0e9c | 1608 | Common Var(flag_profile_use) |
7dea76ba | 1609 | Enable common options for performing profile feedback directed optimizations |
1610 | ||
3e3a0e9c | 1611 | fprofile-use= |
1612 | Common Joined RejectNegative | |
1613 | Enable common options for performing profile feedback directed optimizations, and set -fprofile-dir= | |
1614 | ||
1c6a7b8c | 1615 | fprofile-values |
2e9da478 | 1616 | Common Report Var(flag_profile_values) |
1c6a7b8c | 1617 | Insert code to profile values of expressions |
1618 | ||
1e06725a | 1619 | frandom-seed |
9faf44d6 | 1620 | Common Var(common_deferred_options) Defer |
1e06725a | 1621 | |
1622 | frandom-seed= | |
9faf44d6 | 1623 | Common Joined RejectNegative Var(common_deferred_options) Defer |
53b8e5c1 | 1624 | -frandom-seed=<string> Make compile reproducible using <string> |
1e06725a | 1625 | |
7c6733e8 | 1626 | ; This switch causes the command line that was used to create an |
1627 | ; object file to be recorded into the object file. The exact format | |
1628 | ; of this recording is target and binary file format dependent. | |
1629 | ; It is related to the -fverbose-asm switch, but that switch only | |
1630 | ; records information in the assembler output file as comments, so | |
1631 | ; they never reach the object file. | |
1632 | frecord-gcc-switches | |
1633 | Common Report Var(flag_record_gcc_switches) | |
1634 | Record gcc command line switches in the object file. | |
1635 | ||
1e06725a | 1636 | freg-struct-return |
5461e683 | 1637 | Common Report Var(flag_pcc_struct_return,0) Optimization |
72528c71 | 1638 | Return small aggregates in registers |
1e06725a | 1639 | |
ecdb6d1a | 1640 | fregmove |
87c75316 | 1641 | Common Report Var(flag_regmove) Optimization |
72528c71 | 1642 | Enables a register move optimization |
ecdb6d1a | 1643 | |
1644 | frename-registers | |
87c75316 | 1645 | Common Report Var(flag_rename_registers) Init(2) Optimization |
72528c71 | 1646 | Perform a register renaming optimization pass |
ecdb6d1a | 1647 | |
1648 | freorder-blocks | |
87c75316 | 1649 | Common Report Var(flag_reorder_blocks) Optimization |
72528c71 | 1650 | Reorder basic blocks to improve code placement |
ecdb6d1a | 1651 | |
4f18499c | 1652 | freorder-blocks-and-partition |
87c75316 | 1653 | Common Report Var(flag_reorder_blocks_and_partition) Optimization |
4f18499c | 1654 | Reorder basic blocks and partition into hot and cold sections |
1655 | ||
ecdb6d1a | 1656 | freorder-functions |
87c75316 | 1657 | Common Report Var(flag_reorder_functions) Optimization |
72528c71 | 1658 | Reorder functions to improve code placement |
ecdb6d1a | 1659 | |
1e06725a | 1660 | frerun-cse-after-loop |
c17f64cc | 1661 | Common Report Var(flag_rerun_cse_after_loop) Optimization |
72528c71 | 1662 | Add a common subexpression elimination pass after loop optimizations |
1e06725a | 1663 | |
4f87b914 | 1664 | frerun-loop-opt |
3b0273a1 | 1665 | Common Ignore |
334ec2d8 | 1666 | Does nothing. Preserved for backward compatibility. |
4f87b914 | 1667 | |
5466f589 | 1668 | frounding-math |
ecee1b29 | 1669 | Common Report Var(flag_rounding_math) Optimization SetByCombined |
5466f589 | 1670 | Disable optimizations that assume default FP rounding behavior |
1671 | ||
ecdb6d1a | 1672 | fsched-interblock |
87c75316 | 1673 | Common Report Var(flag_schedule_interblock) Init(1) Optimization |
72528c71 | 1674 | Enable scheduling across basic blocks |
ecdb6d1a | 1675 | |
a7dcf969 | 1676 | fsched-pressure |
1677 | Common Report Var(flag_sched_pressure) Init(0) Optimization | |
1678 | Enable register pressure sensitive insn scheduling | |
1679 | ||
ecdb6d1a | 1680 | fsched-spec |
87c75316 | 1681 | Common Report Var(flag_schedule_speculative) Init(1) Optimization |
72528c71 | 1682 | Allow speculative motion of non-loads |
ecdb6d1a | 1683 | |
1684 | fsched-spec-load | |
87c75316 | 1685 | Common Report Var(flag_schedule_speculative_load) Optimization |
72528c71 | 1686 | Allow speculative motion of some loads |
ecdb6d1a | 1687 | |
1688 | fsched-spec-load-dangerous | |
87c75316 | 1689 | Common Report Var(flag_schedule_speculative_load_dangerous) Optimization |
72528c71 | 1690 | Allow speculative motion of more loads |
ecdb6d1a | 1691 | |
1e06725a | 1692 | fsched-verbose= |
9faf44d6 | 1693 | Common RejectNegative Joined UInteger Var(sched_verbose_param) |
53b8e5c1 | 1694 | -fsched-verbose=<number> Set the verbosity level of the scheduler |
1e06725a | 1695 | |
ecdb6d1a | 1696 | fsched2-use-superblocks |
87c75316 | 1697 | Common Report Var(flag_sched2_use_superblocks) Optimization |
72528c71 | 1698 | If scheduling post reload, do superblock scheduling |
ecdb6d1a | 1699 | |
1700 | fsched2-use-traces | |
3b0273a1 | 1701 | Common Ignore |
fda153ea | 1702 | Does nothing. Preserved for backward compatibility. |
ecdb6d1a | 1703 | |
1e06725a | 1704 | fschedule-insns |
87c75316 | 1705 | Common Report Var(flag_schedule_insns) Optimization |
72528c71 | 1706 | Reschedule instructions before register allocation |
1e06725a | 1707 | |
1708 | fschedule-insns2 | |
87c75316 | 1709 | Common Report Var(flag_schedule_insns_after_reload) Optimization |
72528c71 | 1710 | Reschedule instructions after register allocation |
1e06725a | 1711 | |
e1ab7874 | 1712 | ; This flag should be on when a target implements non-trivial |
1713 | ; scheduling hooks, maybe saving some information for its own sake. | |
1714 | ; On IA64, for example, this is used for correct bundling. | |
1715 | fselective-scheduling | |
1716 | Common Report Var(flag_selective_scheduling) Optimization | |
1717 | Schedule instructions using selective scheduling algorithm | |
1718 | ||
1719 | fselective-scheduling2 | |
1720 | Common Report Var(flag_selective_scheduling2) Optimization | |
1721 | Run selective scheduling after reload | |
1722 | ||
1723 | fsel-sched-pipelining | |
1724 | Common Report Var(flag_sel_sched_pipelining) Init(0) Optimization | |
1725 | Perform software pipelining of inner loops during selective scheduling | |
1726 | ||
1727 | fsel-sched-pipelining-outer-loops | |
1728 | Common Report Var(flag_sel_sched_pipelining_outer_loops) Init(0) Optimization | |
1729 | Perform software pipelining of outer loops during selective scheduling | |
1730 | ||
1731 | fsel-sched-reschedule-pipelined | |
1732 | Common Report Var(flag_sel_sched_reschedule_pipelined) Init(0) Optimization | |
1733 | Reschedule pipelined regions without pipelining | |
1734 | ||
82a16202 | 1735 | ; sched_stalled_insns means that insns can be moved prematurely from the queue |
1736 | ; of stalled insns into the ready list. | |
52c4b43f | 1737 | fsched-stalled-insns |
46f8e3b0 | 1738 | Common Report Var(flag_sched_stalled_insns) Optimization UInteger |
52c4b43f | 1739 | Allow premature scheduling of queued insns |
1740 | ||
1741 | fsched-stalled-insns= | |
a0c938f0 | 1742 | Common RejectNegative Joined UInteger |
98b93ebb | 1743 | -fsched-stalled-insns=<number> Set number of queued insns that can be prematurely scheduled |
52c4b43f | 1744 | |
82a16202 | 1745 | ; sched_stalled_insns_dep controls how many recently scheduled cycles will |
1746 | ; be examined for a dependency on a stalled insn that is candidate for | |
1747 | ; premature removal from the queue of stalled insns into the ready list (has | |
1748 | ; an effect only if the flag 'sched_stalled_insns' is set). | |
52c4b43f | 1749 | fsched-stalled-insns-dep |
46f8e3b0 | 1750 | Common Report Var(flag_sched_stalled_insns_dep,1) Init(1) Optimization UInteger |
52c4b43f | 1751 | Set dependence distance checking in premature scheduling of queued insns |
1752 | ||
1753 | fsched-stalled-insns-dep= | |
1754 | Common RejectNegative Joined UInteger | |
98b93ebb | 1755 | -fsched-stalled-insns-dep=<number> Set dependence distance checking in premature scheduling of queued insns |
52c4b43f | 1756 | |
4d569386 | 1757 | fsched-group-heuristic |
1758 | Common Report Var(flag_sched_group_heuristic) Init(1) Optimization | |
1759 | Enable the group heuristic in the scheduler | |
1760 | ||
1761 | fsched-critical-path-heuristic | |
1762 | Common Report Var(flag_sched_critical_path_heuristic) Init(1) Optimization | |
1763 | Enable the critical path heuristic in the scheduler | |
1764 | ||
1765 | fsched-spec-insn-heuristic | |
1766 | Common Report Var(flag_sched_spec_insn_heuristic) Init(1) Optimization | |
1767 | Enable the speculative instruction heuristic in the scheduler | |
1768 | ||
4d569386 | 1769 | fsched-rank-heuristic |
1770 | Common Report Var(flag_sched_rank_heuristic) Init(1) Optimization | |
1771 | Enable the rank heuristic in the scheduler | |
1772 | ||
1773 | fsched-last-insn-heuristic | |
1774 | Common Report Var(flag_sched_last_insn_heuristic) Init(1) Optimization | |
1775 | Enable the last instruction heuristic in the scheduler | |
1776 | ||
1777 | fsched-dep-count-heuristic | |
1778 | Common Report Var(flag_sched_dep_count_heuristic) Init(1) Optimization | |
1779 | Enable the dependent count heuristic in the scheduler | |
1780 | ||
f2d0e9f1 | 1781 | fsection-anchors |
87c75316 | 1782 | Common Report Var(flag_section_anchors) Optimization |
f2d0e9f1 | 1783 | Access data in the same section from shared anchor points |
1784 | ||
2b74c150 | 1785 | fsee |
3b0273a1 | 1786 | Common Ignore |
1bc99153 | 1787 | Does nothing. Preserved for backward compatibility. |
2b74c150 | 1788 | |
a5b022e7 | 1789 | fzee |
1d4227c3 | 1790 | Common Ignore |
1791 | Does nothing. Preserved for backward compatibility. | |
1792 | ||
1793 | free | |
1794 | Common Report Var(flag_ree) Init(0) | |
1795 | Turn on Redundant Extensions Elimination pass. | |
a5b022e7 | 1796 | |
5fd4bf3b | 1797 | fshow-column |
abf6a617 | 1798 | Common Report Var(flag_show_column) Init(1) |
b559b9e2 | 1799 | Show column numbers in diagnostics, when available. Default on |
5fd4bf3b | 1800 | |
1f021f97 | 1801 | fshrink-wrap |
1802 | Common Report Var(flag_shrink_wrap) Optimization | |
1803 | Emit function prologues only before parts of the function that need it, | |
1804 | rather than at the top of the function. | |
1805 | ||
ecdb6d1a | 1806 | fsignaling-nans |
ecee1b29 | 1807 | Common Report Var(flag_signaling_nans) Optimization SetByCombined |
72528c71 | 1808 | Disable optimizations observable by IEEE signaling NaNs |
ecdb6d1a | 1809 | |
893038cd | 1810 | fsigned-zeros |
ecee1b29 | 1811 | Common Report Var(flag_signed_zeros) Init(1) Optimization SetByCombined |
893038cd | 1812 | Disable floating point optimizations that ignore the IEEE signedness of zero |
1813 | ||
ecdb6d1a | 1814 | fsingle-precision-constant |
87c75316 | 1815 | Common Report Var(flag_single_precision_constant) Optimization |
72528c71 | 1816 | Convert floating point constants to single precision constants |
ecdb6d1a | 1817 | |
a9989fb4 | 1818 | fsplit-ivs-in-unroller |
87c75316 | 1819 | Common Report Var(flag_split_ivs_in_unroller) Init(1) Optimization |
3284a242 | 1820 | Split lifetimes of induction variables when loops are unrolled |
a9989fb4 | 1821 | |
48b14f50 | 1822 | fsplit-stack |
1823 | Common Report Var(flag_split_stack) Init(-1) | |
1824 | Generate discontiguous stack frames | |
1825 | ||
1a6a0f2a | 1826 | fsplit-wide-types |
e8831472 | 1827 | Common Report Var(flag_split_wide_types) Optimization |
1a6a0f2a | 1828 | Split wide types into independent registers |
1829 | ||
375bb675 | 1830 | fvariable-expansion-in-unroller |
87c75316 | 1831 | Common Report Var(flag_variable_expansion_in_unroller) Optimization |
3284a242 | 1832 | Apply variable expansion when loops are unrolled |
375bb675 | 1833 | |
4852b829 | 1834 | fstack-check= |
1835 | Common Report RejectNegative Joined | |
1836 | -fstack-check=[no|generic|specific] Insert stack checking code into the program | |
1837 | ||
ecdb6d1a | 1838 | fstack-check |
67089c6b | 1839 | Common Alias(fstack-check=, specific, no) |
4852b829 | 1840 | Insert stack checking code into the program. Same as -fstack-check=specific |
ecdb6d1a | 1841 | |
1e06725a | 1842 | fstack-limit |
f0da0668 | 1843 | Common Var(common_deferred_options) Defer |
1e06725a | 1844 | |
941a4893 | 1845 | fstack-limit-register= |
f0da0668 | 1846 | Common RejectNegative Joined Var(common_deferred_options) Defer |
53b8e5c1 | 1847 | -fstack-limit-register=<register> Trap if the stack goes past <register> |
941a4893 | 1848 | |
1849 | fstack-limit-symbol= | |
f0da0668 | 1850 | Common RejectNegative Joined Var(common_deferred_options) Defer |
53b8e5c1 | 1851 | -fstack-limit-symbol=<name> Trap if the stack goes past symbol <name> |
941a4893 | 1852 | |
f1a0edff | 1853 | fstack-protector |
1854 | Common Report Var(flag_stack_protect, 1) | |
1855 | Use propolice as a stack protection method | |
1856 | ||
1857 | fstack-protector-all | |
5461e683 | 1858 | Common Report RejectNegative Var(flag_stack_protect, 2) |
f1a0edff | 1859 | Use a stack protection method for every function |
1860 | ||
990495a7 | 1861 | fstack-usage |
1862 | Common RejectNegative Var(flag_stack_usage) | |
1863 | Output stack usage information on a per-function basis | |
1864 | ||
1e06725a | 1865 | fstrength-reduce |
3b0273a1 | 1866 | Common Ignore |
334ec2d8 | 1867 | Does nothing. Preserved for backward compatibility. |
1e06725a | 1868 | |
82a16202 | 1869 | ; Nonzero if we should do (language-dependent) alias analysis. |
1870 | ; Typically, this analysis will assume that expressions of certain | |
1871 | ; types do not alias expressions of certain other types. Only used | |
1872 | ; if alias analysis (in general) is enabled. | |
ecdb6d1a | 1873 | fstrict-aliasing |
87c75316 | 1874 | Common Report Var(flag_strict_aliasing) Optimization |
72528c71 | 1875 | Assume strict aliasing rules apply |
ecdb6d1a | 1876 | |
981eb798 | 1877 | fstrict-overflow |
1878 | Common Report Var(flag_strict_overflow) | |
1879 | Treat signed overflow as undefined | |
1880 | ||
d8219307 | 1881 | fsync-libcalls |
1882 | Common Report Var(flag_sync_libcalls) Init(1) | |
1883 | Implement __atomic operations via libcalls to legacy __sync functions | |
1884 | ||
1e06725a | 1885 | fsyntax-only |
2e9da478 | 1886 | Common Report Var(flag_syntax_only) |
72528c71 | 1887 | Check for syntax errors, then stop |
1e06725a | 1888 | |
ecdb6d1a | 1889 | ftest-coverage |
2e9da478 | 1890 | Common Report Var(flag_test_coverage) |
72528c71 | 1891 | Create data files needed by \"gcov\" |
ecdb6d1a | 1892 | |
1e06725a | 1893 | fthread-jumps |
87c75316 | 1894 | Common Report Var(flag_thread_jumps) Optimization |
72528c71 | 1895 | Perform jump threading optimizations |
1e06725a | 1896 | |
ecdb6d1a | 1897 | ftime-report |
2e9da478 | 1898 | Common Report Var(time_report) |
72528c71 | 1899 | Report the time taken by each compiler pass |
ecdb6d1a | 1900 | |
941a4893 | 1901 | ftls-model= |
d62a5950 | 1902 | Common Joined RejectNegative Enum(tls_model) Var(flag_tls_default) Init(TLS_MODEL_GLOBAL_DYNAMIC) |
53b8e5c1 | 1903 | -ftls-model=[global-dynamic|local-dynamic|initial-exec|local-exec] Set the default thread-local storage code generation model |
941a4893 | 1904 | |
d62a5950 | 1905 | Enum |
1906 | Name(tls_model) Type(enum tls_model) UnknownError(unknown TLS model %qs) | |
1907 | ||
1908 | EnumValue | |
1909 | Enum(tls_model) String(global-dynamic) Value(TLS_MODEL_GLOBAL_DYNAMIC) | |
1910 | ||
1911 | EnumValue | |
1912 | Enum(tls_model) String(local-dynamic) Value(TLS_MODEL_LOCAL_DYNAMIC) | |
1913 | ||
1914 | EnumValue | |
1915 | Enum(tls_model) String(initial-exec) Value(TLS_MODEL_INITIAL_EXEC) | |
1916 | ||
1917 | EnumValue | |
1918 | Enum(tls_model) String(local-exec) Value(TLS_MODEL_LOCAL_EXEC) | |
1919 | ||
56af936e | 1920 | ftoplevel-reorder |
8188ae06 | 1921 | Common Report Var(flag_toplevel_reorder) Init(2) Optimization |
56af936e | 1922 | Reorder top level functions, variables, and asms |
1923 | ||
1e06725a | 1924 | ftracer |
2e9da478 | 1925 | Common Report Var(flag_tracer) |
72528c71 | 1926 | Perform superblock formation via tail duplication |
1e06725a | 1927 | |
82a16202 | 1928 | ; Zero means that floating-point math operations cannot generate a |
1929 | ; (user-visible) trap. This is the case, for example, in nonstop | |
1930 | ; IEEE 754 arithmetic. | |
ecdb6d1a | 1931 | ftrapping-math |
ecee1b29 | 1932 | Common Report Var(flag_trapping_math) Init(1) Optimization SetByCombined |
72528c71 | 1933 | Assume floating-point operations can trap |
ecdb6d1a | 1934 | |
1935 | ftrapv | |
87c75316 | 1936 | Common Report Var(flag_trapv) Optimization |
72528c71 | 1937 | Trap for signed overflow in addition, subtraction and multiplication |
ecdb6d1a | 1938 | |
4ee9c684 | 1939 | ftree-ccp |
87c75316 | 1940 | Common Report Var(flag_tree_ccp) Optimization |
4ee9c684 | 1941 | Enable SSA-CCP optimization on trees |
1942 | ||
b7e55469 | 1943 | ftree-bit-ccp |
1944 | Common Report Var(flag_tree_bit_ccp) Optimization | |
1945 | Enable SSA-BIT-CCP optimization on trees | |
1946 | ||
88dbf20f | 1947 | ftree-store-ccp |
3b0273a1 | 1948 | Common Ignore |
61207d43 | 1949 | Does nothing. Preserved for backward compatibility. |
88dbf20f | 1950 | |
4ee9c684 | 1951 | ftree-ch |
87c75316 | 1952 | Common Report Var(flag_tree_ch) Optimization |
4ee9c684 | 1953 | Enable loop header copying on trees |
1954 | ||
4015e18c | 1955 | ftree-coalesce-inlined-vars |
1956 | Common Report Var(flag_ssa_coalesce_vars,1) Init(2) RejectNegative Optimization | |
1957 | Enable coalescing of copy-related user variables that are inlined | |
1958 | ||
1959 | ftree-coalesce-vars | |
1960 | Common Report Var(flag_ssa_coalesce_vars,2) Optimization | |
1961 | Enable coalescing of all copy-related user variables | |
1962 | ||
4ee9c684 | 1963 | ftree-copyrename |
87c75316 | 1964 | Common Report Var(flag_tree_copyrename) Optimization |
3284a242 | 1965 | Replace SSA temporaries with better names in copies |
4ee9c684 | 1966 | |
88dbf20f | 1967 | ftree-copy-prop |
87c75316 | 1968 | Common Report Var(flag_tree_copy_prop) Optimization |
88dbf20f | 1969 | Enable copy propagation on trees |
1970 | ||
1971 | ftree-store-copy-prop | |
3b0273a1 | 1972 | Common Ignore |
578ef723 | 1973 | Does nothing. Preserved for backward compatibility. |
88dbf20f | 1974 | |
e6d0e152 | 1975 | ftree-cselim |
1976 | Common Report Var(flag_tree_cselim) Init(2) Optimization | |
1977 | Transform condition stores into unconditional ones | |
1978 | ||
a347af29 | 1979 | ftree-switch-conversion |
1980 | Common Report Var(flag_tree_switch_conversion) Optimization | |
1981 | Perform conversions of switch initializations. | |
1982 | ||
4ee9c684 | 1983 | ftree-dce |
87c75316 | 1984 | Common Report Var(flag_tree_dce) Optimization |
4ee9c684 | 1985 | Enable SSA dead code elimination optimization on trees |
1986 | ||
1987 | ftree-dominator-opts | |
87c75316 | 1988 | Common Report Var(flag_tree_dom) Optimization |
4ee9c684 | 1989 | Enable dominator optimizations |
1990 | ||
51385f30 | 1991 | ftree-tail-merge |
1992 | Common Report Var(flag_tree_tail_merge) Optimization | |
1993 | Enable tail merging on trees | |
1994 | ||
4ee9c684 | 1995 | ftree-dse |
87c75316 | 1996 | Common Report Var(flag_tree_dse) Optimization |
4ee9c684 | 1997 | Enable dead store elimination |
1998 | ||
408c3c77 | 1999 | ftree-forwprop |
2000 | Common Report Var(flag_tree_forwprop) Init(1) Optimization | |
2001 | Enable forward propagation on trees | |
2002 | ||
591c2a30 | 2003 | ftree-fre |
87c75316 | 2004 | Common Report Var(flag_tree_fre) Optimization |
591c2a30 | 2005 | Enable Full Redundancy Elimination (FRE) on trees |
2006 | ||
9efe50a4 | 2007 | foptimize-strlen |
2008 | Common Report Var(flag_optimize_strlen) Optimization | |
2009 | Enable string length optimizations on trees | |
2010 | ||
801c5610 | 2011 | ftree-loop-distribution |
2b945500 | 2012 | Common Report Var(flag_tree_loop_distribution) Optimization |
801c5610 | 2013 | Enable loop distribution on trees |
2014 | ||
0acf3477 | 2015 | ftree-loop-distribute-patterns |
2016 | Common Report Var(flag_tree_loop_distribute_patterns) Optimization | |
2017 | Enable loop distribution for patterns transformed into a library call | |
2018 | ||
41b5cc78 | 2019 | ftree-loop-im |
87c75316 | 2020 | Common Report Var(flag_tree_loop_im) Init(1) Optimization |
7d23383d | 2021 | Enable loop invariant motion on trees |
2022 | ||
60cfcb79 | 2023 | ftree-loop-linear |
464a406e | 2024 | Common Alias(floop-interchange) |
2025 | Enable loop interchange transforms. Same as -floop-interchange | |
60cfcb79 | 2026 | |
41b5cc78 | 2027 | ftree-loop-ivcanon |
87c75316 | 2028 | Common Report Var(flag_tree_loop_ivcanon) Init(1) Optimization |
41b5cc78 | 2029 | Create canonical induction variables in loops |
2030 | ||
dcb9eccb | 2031 | ftree-loop-optimize |
87c75316 | 2032 | Common Report Var(flag_tree_loop_optimize) Init(1) Optimization |
dcb9eccb | 2033 | Enable loop optimizations on tree level |
2034 | ||
28c92cbb | 2035 | ftree-parallelize-loops= |
212cc995 | 2036 | Common Report Joined RejectNegative UInteger Var(flag_tree_parallelize_loops) Init(1) |
28c92cbb | 2037 | Enable automatic parallelization of loops |
2038 | ||
408c3c77 | 2039 | ftree-phiprop |
2040 | Common Report Var(flag_tree_phiprop) Init(1) Optimization | |
2041 | Enable hoisting loads from conditional pointers. | |
2042 | ||
4ee9c684 | 2043 | ftree-pre |
87c75316 | 2044 | Common Report Var(flag_tree_pre) Optimization |
4ee9c684 | 2045 | Enable SSA-PRE optimization on trees |
2046 | ||
0f9b384d | 2047 | ftree-partial-pre |
2048 | Common Report Var(flag_tree_partial_pre) Optimization | |
2049 | In SSA-PRE optimization on trees, enable partial-partial redundancy elimination | |
2050 | ||
408c3c77 | 2051 | ftree-pta |
2052 | Common Report Var(flag_tree_pta) Init(1) Optimization | |
2053 | Perform function-local points-to analysis on trees. | |
2054 | ||
621a93b1 | 2055 | ftree-reassoc |
2056 | Common Report Var(flag_tree_reassoc) Init(1) Optimization | |
2057 | Enable reassociation on tree level | |
2058 | ||
2be14d8b | 2059 | ftree-salias |
3b0273a1 | 2060 | Common Ignore |
70393469 | 2061 | Does nothing. Preserved for backward compatibility. |
2be14d8b | 2062 | |
5e733b02 | 2063 | ftree-sink |
87c75316 | 2064 | Common Report Var(flag_tree_sink) Optimization |
5e733b02 | 2065 | Enable SSA code sinking on trees |
2066 | ||
4ee9c684 | 2067 | ftree-sra |
87c75316 | 2068 | Common Report Var(flag_tree_sra) Optimization |
4ee9c684 | 2069 | Perform scalar replacement of aggregates |
2070 | ||
2071 | ftree-ter | |
c17f64cc | 2072 | Common Report Var(flag_tree_ter) Optimization |
4ee9c684 | 2073 | Replace temporary expressions in the SSA->normal pass |
2074 | ||
87c75316 | 2075 | ftree-lrs |
2076 | Common Report Var(flag_tree_live_range_split) Optimization | |
2077 | Perform live range splitting during the SSA->normal pass | |
2078 | ||
88dbf20f | 2079 | ftree-vrp |
87c75316 | 2080 | Common Report Var(flag_tree_vrp) Init(0) Optimization |
88dbf20f | 2081 | Perform Value Range Propagation on trees |
2082 | ||
1e06725a | 2083 | funit-at-a-time |
8188ae06 | 2084 | Common Report Var(flag_unit_at_a_time) Init(1) Optimization |
72528c71 | 2085 | Compile whole compilation unit at a time |
1e06725a | 2086 | |
2087 | funroll-loops | |
87c75316 | 2088 | Common Report Var(flag_unroll_loops) Optimization |
72528c71 | 2089 | Perform loop unrolling when iteration count is known |
1e06725a | 2090 | |
2091 | funroll-all-loops | |
87c75316 | 2092 | Common Report Var(flag_unroll_all_loops) Optimization |
72528c71 | 2093 | Perform loop unrolling for all loops |
1e06725a | 2094 | |
7e3cc681 | 2095 | ; Nonzero means that loop optimizer may assume that the induction variables |
2096 | ; that control loops do not overflow and that the loops with nontrivial | |
2097 | ; exit condition are not infinite | |
2098 | funsafe-loop-optimizations | |
87c75316 | 2099 | Common Report Var(flag_unsafe_loop_optimizations) Optimization |
7e3cc681 | 2100 | Allow loop optimizations to assume that the loops behave in normal way |
2101 | ||
49d060d7 | 2102 | fassociative-math |
ecee1b29 | 2103 | Common Report Var(flag_associative_math) SetByCombined |
49d060d7 | 2104 | Allow optimization for floating-point arithmetic which may change the |
2105 | result of the operation due to rounding. | |
2106 | ||
2107 | freciprocal-math | |
ecee1b29 | 2108 | Common Report Var(flag_reciprocal_math) SetByCombined |
49d060d7 | 2109 | Same as -fassociative-math for expressions which include division. |
2110 | ||
82a16202 | 2111 | ; Nonzero means that unsafe floating-point math optimizations are allowed |
2112 | ; for the sake of speed. IEEE compliance is not guaranteed, and operations | |
2113 | ; are allowed to assume that their arguments and results are "normal" | |
2114 | ; (e.g., nonnegative for SQRT). | |
ecdb6d1a | 2115 | funsafe-math-optimizations |
ecee1b29 | 2116 | Common Report Var(flag_unsafe_math_optimizations) Optimization SetByCombined |
72528c71 | 2117 | Allow math optimizations that may violate IEEE or ISO standards |
ecdb6d1a | 2118 | |
1e06725a | 2119 | funswitch-loops |
87c75316 | 2120 | Common Report Var(flag_unswitch_loops) Optimization |
72528c71 | 2121 | Perform loop unswitching |
1e06725a | 2122 | |
ecdb6d1a | 2123 | funwind-tables |
87c75316 | 2124 | Common Report Var(flag_unwind_tables) Optimization |
72528c71 | 2125 | Just generate unwind tables for exception handling |
ecdb6d1a | 2126 | |
386fbe6a | 2127 | fuse-linker-plugin |
2128 | Common Undocumented | |
2129 | ||
0f8defe5 | 2130 | ; Positive if we should track variables, negative if we should run |
2131 | ; the var-tracking pass only to discard debug annotations, zero if | |
2132 | ; we're not to run it. When flag_var_tracking == 2 (AUTODETECT_VALUE) it | |
2133 | ; will be set according to optimize, debug_info_level and debug_hooks | |
2134 | ; in process_options (). | |
5923a5e7 | 2135 | fvar-tracking |
0f8defe5 | 2136 | Common Report Var(flag_var_tracking) Init(2) Optimization |
5923a5e7 | 2137 | Perform variable tracking |
2138 | ||
0f8defe5 | 2139 | ; Positive if we should track variables at assignments, negative if |
2140 | ; we should run the var-tracking pass only to discard debug | |
2141 | ; annotations. When flag_var_tracking_assignments == | |
2142 | ; AUTODETECT_VALUE it will be set according to flag_var_tracking. | |
9845d120 | 2143 | fvar-tracking-assignments |
0f8defe5 | 2144 | Common Report Var(flag_var_tracking_assignments) Init(2) Optimization |
9845d120 | 2145 | Perform variable tracking by annotating assignments |
2146 | ||
0f8defe5 | 2147 | ; Nonzero if we should toggle flag_var_tracking_assignments after |
2148 | ; processing options and computing its default. */ | |
9845d120 | 2149 | fvar-tracking-assignments-toggle |
0f8defe5 | 2150 | Common Report Var(flag_var_tracking_assignments_toggle) Optimization |
9845d120 | 2151 | Toggle -fvar-tracking-assignments |
2152 | ||
d53bb226 | 2153 | fvar-tracking-uninit |
2154 | Common Report Var(flag_var_tracking_uninit) Optimization | |
2155 | Perform variable tracking and also tag variables that are uninitialized | |
2156 | ||
c91e8223 | 2157 | ftree-vectorize |
87c75316 | 2158 | Common Report Var(flag_tree_vectorize) Optimization |
c91e8223 | 2159 | Enable loop vectorization on trees |
2160 | ||
37545e54 | 2161 | ftree-slp-vectorize |
2162 | Common Report Var(flag_tree_slp_vectorize) Init(2) Optimization | |
2163 | Enable basic block vectorization (SLP) on trees | |
2164 | ||
867c03eb | 2165 | fvect-cost-model |
2166 | Common Report Var(flag_vect_cost_model) Optimization | |
2167 | Enable use of cost model in vectorization | |
2168 | ||
25e3c2e8 | 2169 | ftree-vect-loop-version |
87c75316 | 2170 | Common Report Var(flag_tree_vect_loop_version) Init(1) Optimization |
25e3c2e8 | 2171 | Enable loop versioning when doing loop vectorization on trees |
2172 | ||
459e8543 | 2173 | ftree-vectorizer-verbose= |
295e1243 | 2174 | Common RejectNegative Joined UInteger |
98b93ebb | 2175 | -ftree-vectorizer-verbose=<number> Set the verbosity level of the vectorizer |
459e8543 | 2176 | |
2a6e95ba | 2177 | ftree-scev-cprop |
e8831472 | 2178 | Common Report Var(flag_tree_scev_cprop) Init(1) Optimization |
2a6e95ba | 2179 | Enable copy propagation of scalar-evolution information. |
2180 | ||
82a16202 | 2181 | ; -fverbose-asm causes extra commentary information to be produced in |
2182 | ; the generated assembly code (to make it more readable). This option | |
2183 | ; is generally only of use to those who actually need to read the | |
2184 | ; generated assembly code (perhaps while debugging the compiler itself). | |
2185 | ; -fno-verbose-asm, the default, causes the extra information | |
2186 | ; to not be added and is useful when comparing two assembler files. | |
ecdb6d1a | 2187 | fverbose-asm |
2e9da478 | 2188 | Common Report Var(flag_verbose_asm) |
72528c71 | 2189 | Add extra commentary to assembler output |
ecdb6d1a | 2190 | |
b212f378 | 2191 | fvisibility= |
d62a5950 | 2192 | Common Joined RejectNegative Enum(symbol_visibility) Var(default_visibility) Init(VISIBILITY_DEFAULT) |
b212f378 | 2193 | -fvisibility=[default|internal|hidden|protected] Set the default symbol visibility |
2194 | ||
d62a5950 | 2195 | Enum |
2196 | Name(symbol_visibility) Type(enum symbol_visibility) UnknownError(unrecognized visibility value %qs) | |
2197 | ||
2198 | EnumValue | |
2199 | Enum(symbol_visibility) String(default) Value(VISIBILITY_DEFAULT) | |
2200 | ||
2201 | EnumValue | |
2202 | Enum(symbol_visibility) String(internal) Value(VISIBILITY_INTERNAL) | |
2203 | ||
2204 | EnumValue | |
2205 | Enum(symbol_visibility) String(hidden) Value(VISIBILITY_HIDDEN) | |
2206 | ||
2207 | EnumValue | |
2208 | Enum(symbol_visibility) String(protected) Value(VISIBILITY_PROTECTED) | |
b212f378 | 2209 | |
1c6a7b8c | 2210 | fvpt |
87c75316 | 2211 | Common Report Var(flag_value_profile_transformations) Optimization |
1c6a7b8c | 2212 | Use expression value profiles in optimizations |
2213 | ||
eeb4a70e | 2214 | fweb |
87c75316 | 2215 | Common Report Var(flag_web) Init(2) Optimization |
eeb4a70e | 2216 | Construct webs and split unrelated uses of single variable |
2217 | ||
e6a23add | 2218 | ftree-builtin-call-dce |
2219 | Common Report Var(flag_tree_builtin_call_dce) Init(0) Optimization | |
2220 | Enable conditional dead code elimination for builtin calls | |
2221 | ||
62eec3b4 | 2222 | fwhole-program |
87c75316 | 2223 | Common Report Var(flag_whole_program) Init(0) Optimization |
62eec3b4 | 2224 | Perform whole program optimizations |
2225 | ||
ecdb6d1a | 2226 | fwrapv |
87c75316 | 2227 | Common Report Var(flag_wrapv) Optimization |
72528c71 | 2228 | Assume signed arithmetic overflow wraps around |
ecdb6d1a | 2229 | |
ecdb6d1a | 2230 | fzero-initialized-in-bss |
2e9da478 | 2231 | Common Report Var(flag_zero_initialized_in_bss) Init(1) |
72528c71 | 2232 | Put zero initialized data in the bss section |
ecdb6d1a | 2233 | |
6f2f567f | 2234 | g |
2235 | Common JoinedOrMissing | |
b0e56fb1 | 2236 | Generate debug information in default format |
2237 | ||
2238 | gcoff | |
3d3b9d5b | 2239 | Common JoinedOrMissing Negative(gdwarf-) |
b0e56fb1 | 2240 | Generate debug information in COFF format |
2241 | ||
3d3b9d5b | 2242 | gdwarf- |
052166fd | 2243 | Common Joined UInteger Var(dwarf_version) Init(4) Negative(gstabs) |
3d3b9d5b | 2244 | Generate debug information in DWARF v2 (or later) format |
b0e56fb1 | 2245 | |
2246 | ggdb | |
2247 | Common JoinedOrMissing | |
2248 | Generate debug information in default extended format | |
2249 | ||
7a99ccab | 2250 | gno-pubnames |
2251 | Common RejectNegative Var(debug_generate_pub_sections, 0) Init(-1) | |
2252 | Don't generate DWARF pubnames and pubtypes sections. | |
2253 | ||
2254 | gpubnames | |
2255 | Common RejectNegative Var(debug_generate_pub_sections, 1) | |
2256 | Generate DWARF pubnames and pubtypes sections. | |
2257 | ||
f45370f8 | 2258 | gno-record-gcc-switches |
052166fd | 2259 | Common RejectNegative Var(dwarf_record_gcc_switches,0) Init(1) |
f45370f8 | 2260 | Don't record gcc command line switches in DWARF DW_AT_producer. |
2261 | ||
2262 | grecord-gcc-switches | |
2263 | Common RejectNegative Var(dwarf_record_gcc_switches,1) | |
2264 | Record gcc command line switches in DWARF DW_AT_producer. | |
2265 | ||
b0e56fb1 | 2266 | gstabs |
a1baa5f1 | 2267 | Common JoinedOrMissing Negative(gstabs+) |
b0e56fb1 | 2268 | Generate debug information in STABS format |
2269 | ||
2270 | gstabs+ | |
a1baa5f1 | 2271 | Common JoinedOrMissing Negative(gvms) |
b0e56fb1 | 2272 | Generate debug information in extended STABS format |
2273 | ||
c16b6d19 | 2274 | gno-strict-dwarf |
052166fd | 2275 | Common RejectNegative Var(dwarf_strict,0) Init(0) |
c16b6d19 | 2276 | Emit DWARF additions beyond selected version |
2277 | ||
2278 | gstrict-dwarf | |
5461e683 | 2279 | Common Report RejectNegative Var(dwarf_strict,1) |
c16b6d19 | 2280 | Don't emit DWARF additions beyond selected version |
2281 | ||
71278019 | 2282 | gtoggle |
2283 | Common Report Var(flag_gtoggle) | |
2284 | Toggle debug information generation | |
2285 | ||
b0e56fb1 | 2286 | gvms |
a1baa5f1 | 2287 | Common JoinedOrMissing Negative(gxcoff) |
b0e56fb1 | 2288 | Generate debug information in VMS format |
2289 | ||
2290 | gxcoff | |
a1baa5f1 | 2291 | Common JoinedOrMissing Negative(gxcoff+) |
b0e56fb1 | 2292 | Generate debug information in XCOFF format |
2293 | ||
2294 | gxcoff+ | |
a1baa5f1 | 2295 | Common JoinedOrMissing Negative(gcoff) |
b0e56fb1 | 2296 | Generate debug information in extended XCOFF format |
6f2f567f | 2297 | |
f37ef985 | 2298 | h |
2299 | Driver Joined Separate | |
2300 | ||
19bc000d | 2301 | iplugindir= |
2302 | Common Joined Var(plugindir_string) Init(0) | |
2303 | -iplugindir=<dir> Set <dir> to be the default plugin directory | |
2304 | ||
e28aa114 | 2305 | l |
2306 | Driver Joined Separate | |
2307 | ||
3bfde2af | 2308 | n |
2309 | Driver | |
2310 | ||
e28aa114 | 2311 | no-canonical-prefixes |
2312 | Driver | |
2313 | ||
cb22f930 | 2314 | nodefaultlibs |
2315 | Driver | |
2316 | ||
286f96fe | 2317 | nostartfiles |
2318 | Driver | |
2319 | ||
cb22f930 | 2320 | nostdlib |
2321 | Driver | |
2322 | ||
e690b385 | 2323 | o |
6bd9d862 | 2324 | Common Driver Joined Separate Var(asm_file_name) MissingArgError(missing filename after %qs) |
53b8e5c1 | 2325 | -o <file> Place output into <file> |
e690b385 | 2326 | |
2327 | p | |
2e9da478 | 2328 | Common Var(profile_flag) |
53b8e5c1 | 2329 | Enable function profiling |
e690b385 | 2330 | |
e28aa114 | 2331 | pass-exit-codes |
2332 | Driver Var(pass_exit_codes) | |
2333 | ||
e690b385 | 2334 | pedantic |
29438999 | 2335 | Common Alias(Wpedantic) |
e690b385 | 2336 | |
2337 | pedantic-errors | |
6bd9d862 | 2338 | Common Var(flag_pedantic_errors) |
53b8e5c1 | 2339 | Like -pedantic but issue them as errors |
e690b385 | 2340 | |
cb22f930 | 2341 | pg |
2342 | Driver | |
2343 | ||
e28aa114 | 2344 | pipe |
2345 | Driver Var(use_pipes) | |
2346 | ||
2347 | print-file-name= | |
2348 | Driver JoinedOrMissing Var(print_file_name) | |
2349 | ||
2350 | print-libgcc-file-name | |
2351 | Driver | |
2352 | ||
2353 | print-multi-directory | |
2354 | Driver Var(print_multi_directory) | |
2355 | ||
2356 | print-multi-lib | |
2357 | Driver Var(print_multi_lib) | |
2358 | ||
2359 | print-multi-os-directory | |
2360 | Driver Var(print_multi_os_directory) | |
2361 | ||
2362 | print-prog-name= | |
2363 | Driver JoinedOrMissing Var(print_prog_name) | |
2364 | ||
2365 | print-search-dirs | |
2366 | Driver Var(print_search_dirs) | |
2367 | ||
2368 | print-sysroot | |
2369 | Driver Var(print_sysroot) | |
2370 | ||
2371 | print-sysroot-headers-suffix | |
2372 | Driver Var(print_sysroot_headers_suffix) | |
2373 | ||
3272db82 | 2374 | quiet |
e28aa114 | 2375 | Common Var(quiet_flag) RejectDriver |
53b8e5c1 | 2376 | Do not display functions compiled or elapsed time |
3272db82 | 2377 | |
3bfde2af | 2378 | r |
2379 | Driver | |
2380 | ||
2381 | s | |
2382 | Driver | |
2383 | ||
e28aa114 | 2384 | save-temps |
2385 | Driver | |
2386 | ||
2387 | save-temps= | |
2388 | Driver Joined | |
2389 | ||
3bfde2af | 2390 | t |
2391 | Driver | |
2392 | ||
e28aa114 | 2393 | time |
2394 | Driver Var(report_times) | |
2395 | ||
2396 | time= | |
2397 | Driver JoinedOrMissing | |
2398 | ||
5789e05b | 2399 | u |
2400 | Driver Joined Separate | |
2401 | ||
4b2a05b6 | 2402 | undef |
2403 | Driver | |
2404 | ; C option, but driver must not handle as "-u ndef". | |
2405 | ||
e28aa114 | 2406 | v |
6bd9d862 | 2407 | Common Driver Var(verbose_flag) |
2408 | Enable verbose output | |
e28aa114 | 2409 | |
e690b385 | 2410 | version |
e28aa114 | 2411 | Common Var(version_flag) RejectDriver |
53b8e5c1 | 2412 | Display the compiler's version |
e690b385 | 2413 | |
2414 | w | |
2e9da478 | 2415 | Common Var(inhibit_warnings) |
53b8e5c1 | 2416 | Suppress warnings |
e690b385 | 2417 | |
e28aa114 | 2418 | wrapper |
2419 | Driver Separate Var(wrapper_string) | |
2420 | ||
2421 | x | |
2422 | Driver Joined Separate | |
2423 | ||
794febf8 | 2424 | shared |
1412b935 | 2425 | Driver RejectNegative Negative(pie) |
794febf8 | 2426 | Create a shared library |
2427 | ||
e28aa114 | 2428 | shared-libgcc |
2429 | Driver | |
2430 | ||
2431 | specs | |
67089c6b | 2432 | Driver Separate Alias(specs=) |
e28aa114 | 2433 | |
2434 | specs= | |
2435 | Driver Joined | |
2436 | ||
cb22f930 | 2437 | static |
2438 | Driver | |
2439 | ||
e28aa114 | 2440 | static-libgcc |
2441 | Driver | |
2442 | ||
2443 | static-libgfortran | |
2444 | Driver | |
2445 | ; Documented for Fortran, but always accepted by driver. | |
2446 | ||
2447 | static-libstdc++ | |
2448 | Driver | |
2449 | ||
e440a328 | 2450 | static-libgo |
2451 | Driver | |
2452 | ; Documented for Go, but always accepted by driver. | |
2453 | ||
5789e05b | 2454 | symbolic |
2455 | Driver | |
2456 | ||
794febf8 | 2457 | pie |
1412b935 | 2458 | Driver RejectNegative Negative(shared) |
794febf8 | 2459 | Create a position independent executable |
2460 | ||
f37ef985 | 2461 | z |
2462 | Driver Joined Separate | |
2463 | ||
3272db82 | 2464 | ; This comment is to ensure we retain the blank line above. |