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  25. <title>Option Summary (Using the GNU Compiler Collection (GCC))</title>

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  35. <link href="Invoking-GCC.html#Invoking-GCC" rel="up" title="Invoking GCC">

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  70. <a name="Option-Summary"></a>

  71. <div class="header">

  72. <p>

  73. Next: <a href="Overall-Options.html#Overall-Options" accesskey="n" rel="next">Overall Options</a>, Up: <a href="Invoking-GCC.html#Invoking-GCC" accesskey="u" rel="up">Invoking GCC</a> &nbsp; [<a href="index.html#SEC_Contents" title="Table of contents" rel="contents">Contents</a>][<a href="Option-Index.html#Option-Index" title="Index" rel="index">Index</a>]</p>

  74. </div>

  75. <hr>

  76. <a name="Option-Summary-1"></a>

  77. <h3 class="section">3.1 Option Summary</h3>

  78. 

  79. <p>Here is a summary of all the options, grouped by type.  Explanations are

  80. in the following sections.

  81. </p>

  82. <dl compact="compact">

  83. <dt><em>Overall Options</em></dt>

  84. <dd><p>See <a href="Overall-Options.html#Overall-Options">Options Controlling the Kind of Output</a>.

  85. </p><div class="smallexample">

  86. <pre class="smallexample">-c  -S  -E  -o <var>file</var>  -x <var>language</var>  

  87. -v  -###  --help<span class="roman">[</span>=<var>class</var><span class="roman">[</span>,&hellip;<span class="roman">]]</span>  --target-help  --version 

  88. -pass-exit-codes  -pipe  -specs=<var>file</var>  -wrapper  

  89. @<var>file</var>  -ffile-prefix-map=<var>old</var>=<var>new</var>  

  90. -fplugin=<var>file</var>  -fplugin-arg-<var>name</var>=<var>arg</var>  

  91. -fdump-ada-spec<span class="roman">[</span>-slim<span class="roman">]</span>  -fada-spec-parent=<var>unit</var>  -fdump-go-spec=<var>file</var>

  92. </pre></div>

  93. 

  94. </dd>

  95. <dt><em>C Language Options</em></dt>

  96. <dd><p>See <a href="C-Dialect-Options.html#C-Dialect-Options">Options Controlling C Dialect</a>.

  97. </p><div class="smallexample">

  98. <pre class="smallexample">-ansi  -std=<var>standard</var>  -fgnu89-inline 

  99. -fpermitted-flt-eval-methods=<var>standard</var> 

  100. -aux-info <var>filename</var>  -fallow-parameterless-variadic-functions 

  101. -fno-asm  -fno-builtin  -fno-builtin-<var>function</var>  -fgimple

  102. -fhosted  -ffreestanding 

  103. -fopenacc  -fopenacc-dim=<var>geom</var> 

  104. -fopenmp  -fopenmp-simd 

  105. -fms-extensions  -fplan9-extensions  -fsso-struct=<var>endianness</var> 

  106. -fallow-single-precision  -fcond-mismatch  -flax-vector-conversions 

  107. -fsigned-bitfields  -fsigned-char 

  108. -funsigned-bitfields  -funsigned-char

  109. </pre></div>

  110. 

  111. </dd>

  112. <dt><em>C++ Language Options</em></dt>

  113. <dd><p>See <a href="C_002b_002b-Dialect-Options.html#C_002b_002b-Dialect-Options">Options Controlling C++ Dialect</a>.

  114. </p><div class="smallexample">

  115. <pre class="smallexample">-fabi-version=<var>n</var>  -fno-access-control 

  116. -faligned-new=<var>n</var>  -fargs-in-order=<var>n</var>  -fchar8_t  -fcheck-new 

  117. -fconstexpr-depth=<var>n</var>  -fconstexpr-cache-depth=<var>n</var> 

  118. -fconstexpr-loop-limit=<var>n</var>  -fconstexpr-ops-limit=<var>n</var> 

  119. -fno-elide-constructors 

  120. -fno-enforce-eh-specs 

  121. -fno-gnu-keywords 

  122. -fno-implicit-templates 

  123. -fno-implicit-inline-templates 

  124. -fno-implement-inlines  -fms-extensions 

  125. -fnew-inheriting-ctors 

  126. -fnew-ttp-matching 

  127. -fno-nonansi-builtins  -fnothrow-opt  -fno-operator-names 

  128. -fno-optional-diags  -fpermissive 

  129. -fno-pretty-templates 

  130. -fno-rtti  -fsized-deallocation 

  131. -ftemplate-backtrace-limit=<var>n</var> 

  132. -ftemplate-depth=<var>n</var> 

  133. -fno-threadsafe-statics  -fuse-cxa-atexit 

  134. -fno-weak  -nostdinc++ 

  135. -fvisibility-inlines-hidden 

  136. -fvisibility-ms-compat 

  137. -fext-numeric-literals 

  138. -Wabi-tag  -Wcatch-value  -Wcatch-value=<var>n</var> 

  139. -Wno-class-conversion  -Wclass-memaccess 

  140. -Wcomma-subscript  -Wconditionally-supported 

  141. -Wno-conversion-null  -Wctor-dtor-privacy  -Wno-delete-incomplete 

  142. -Wdelete-non-virtual-dtor  -Wdeprecated-copy  -Wdeprecated-copy-dtor 

  143. -Weffc++  -Wextra-semi  -Wno-inaccessible-base 

  144. -Wno-inherited-variadic-ctor  -Wno-init-list-lifetime 

  145. -Wno-invalid-offsetof  -Wno-literal-suffix  -Wmismatched-tags 

  146. -Wmultiple-inheritance  -Wnamespaces  -Wnarrowing 

  147. -Wnoexcept  -Wnoexcept-type  -Wnon-virtual-dtor 

  148. -Wpessimizing-move  -Wno-placement-new  -Wplacement-new=<var>n</var> 

  149. -Wredundant-move -Wredundant-tags 

  150. -Wreorder  -Wregister 

  151. -Wstrict-null-sentinel  -Wno-subobject-linkage  -Wtemplates 

  152. -Wno-non-template-friend  -Wold-style-cast 

  153. -Woverloaded-virtual  -Wno-pmf-conversions -Wsign-promo 

  154. -Wsized-deallocation  -Wsuggest-final-methods 

  155. -Wsuggest-final-types  -Wsuggest-override  

  156. -Wno-terminate  -Wuseless-cast  -Wvirtual-inheritance  

  157. -Wno-virtual-move-assign  -Wvolatile  -Wzero-as-null-pointer-constant

  158. </pre></div>

  159. 

  160. </dd>

  161. <dt><em>Objective-C and Objective-C++ Language Options</em></dt>

  162. <dd><p>See <a href="Objective_002dC-and-Objective_002dC_002b_002b-Dialect-Options.html#Objective_002dC-and-Objective_002dC_002b_002b-Dialect-Options">Options Controlling

  163. Objective-C and Objective-C++ Dialects</a>.

  164. </p><div class="smallexample">

  165. <pre class="smallexample">-fconstant-string-class=<var>class-name</var> 

  166. -fgnu-runtime  -fnext-runtime 

  167. -fno-nil-receivers 

  168. -fobjc-abi-version=<var>n</var> 

  169. -fobjc-call-cxx-cdtors 

  170. -fobjc-direct-dispatch 

  171. -fobjc-exceptions 

  172. -fobjc-gc 

  173. -fobjc-nilcheck 

  174. -fobjc-std=objc1 

  175. -fno-local-ivars 

  176. -fivar-visibility=<span class="roman">[</span>public<span class="roman">|</span>protected<span class="roman">|</span>private<span class="roman">|</span>package<span class="roman">]</span> 

  177. -freplace-objc-classes 

  178. -fzero-link 

  179. -gen-decls 

  180. -Wassign-intercept  -Wno-property-assign-default 

  181. -Wno-protocol  -Wselector 

  182. -Wstrict-selector-match 

  183. -Wundeclared-selector

  184. </pre></div>

  185. 

  186. </dd>

  187. <dt><em>Diagnostic Message Formatting Options</em></dt>

  188. <dd><p>See <a href="Diagnostic-Message-Formatting-Options.html#Diagnostic-Message-Formatting-Options">Options to Control Diagnostic Messages Formatting</a>.

  189. </p><div class="smallexample">

  190. <pre class="smallexample">-fmessage-length=<var>n</var>  

  191. -fdiagnostics-show-location=<span class="roman">[</span>once<span class="roman">|</span>every-line<span class="roman">]</span>  

  192. -fdiagnostics-color=<span class="roman">[</span>auto<span class="roman">|</span>never<span class="roman">|</span>always<span class="roman">]</span>  

  193. -fdiagnostics-urls=<span class="roman">[</span>auto<span class="roman">|</span>never<span class="roman">|</span>always<span class="roman">]</span>  

  194. -fdiagnostics-format=<span class="roman">[</span>text<span class="roman">|</span>json<span class="roman">]</span>  

  195. -fno-diagnostics-show-option  -fno-diagnostics-show-caret 

  196. -fno-diagnostics-show-labels  -fno-diagnostics-show-line-numbers 

  197. -fno-diagnostics-show-cwe  

  198. -fdiagnostics-minimum-margin-width=<var>width</var> 

  199. -fdiagnostics-parseable-fixits  -fdiagnostics-generate-patch 

  200. -fdiagnostics-show-template-tree  -fno-elide-type 

  201. -fdiagnostics-path-format=<span class="roman">[</span>none<span class="roman">|</span>separate-events<span class="roman">|</span>inline-events<span class="roman">]</span> 

  202. -fdiagnostics-show-path-depths 

  203. -fno-show-column

  204. </pre></div>

  205. 

  206. </dd>

  207. <dt><em>Warning Options</em></dt>

  208. <dd><p>See <a href="Warning-Options.html#Warning-Options">Options to Request or Suppress Warnings</a>.

  209. </p><div class="smallexample">

  210. <pre class="smallexample">-fsyntax-only  -fmax-errors=<var>n</var>  -Wpedantic 

  211. -pedantic-errors 

  212. -w  -Wextra  -Wall  -Wabi=<var>n</var> 

  213. -Waddress  -Wno-address-of-packed-member  -Waggregate-return 

  214. -Walloc-size-larger-than=<var>byte-size</var>  -Walloc-zero 

  215. -Walloca  -Walloca-larger-than=<var>byte-size</var> 

  216. -Wno-aggressive-loop-optimizations 

  217. -Warith-conversion 

  218. -Warray-bounds  -Warray-bounds=<var>n</var> 

  219. -Wno-attributes  -Wattribute-alias=<var>n</var> -Wno-attribute-alias 

  220. -Wno-attribute-warning  -Wbool-compare  -Wbool-operation 

  221. -Wno-builtin-declaration-mismatch 

  222. -Wno-builtin-macro-redefined  -Wc90-c99-compat  -Wc99-c11-compat 

  223. -Wc11-c2x-compat 

  224. -Wc++-compat  -Wc++11-compat  -Wc++14-compat  -Wc++17-compat  

  225. -Wc++20-compat  

  226. -Wcast-align  -Wcast-align=strict  -Wcast-function-type  -Wcast-qual  

  227. -Wchar-subscripts 

  228. -Wclobbered  -Wcomment 

  229. -Wconversion  -Wno-coverage-mismatch  -Wno-cpp 

  230. -Wdangling-else  -Wdate-time 

  231. -Wno-deprecated  -Wno-deprecated-declarations  -Wno-designated-init 

  232. -Wdisabled-optimization 

  233. -Wno-discarded-array-qualifiers  -Wno-discarded-qualifiers 

  234. -Wno-div-by-zero  -Wdouble-promotion 

  235. -Wduplicated-branches  -Wduplicated-cond 

  236. -Wempty-body  -Wno-endif-labels  -Wenum-compare  -Wenum-conversion 

  237. -Werror  -Werror=*  -Wexpansion-to-defined  -Wfatal-errors 

  238. -Wfloat-conversion  -Wfloat-equal  -Wformat  -Wformat=2 

  239. -Wno-format-contains-nul  -Wno-format-extra-args  

  240. -Wformat-nonliteral  -Wformat-overflow=<var>n</var> 

  241. -Wformat-security  -Wformat-signedness  -Wformat-truncation=<var>n</var> 

  242. -Wformat-y2k  -Wframe-address 

  243. -Wframe-larger-than=<var>byte-size</var>  -Wno-free-nonheap-object 

  244. -Wno-hsa  -Wno-if-not-aligned  -Wno-ignored-attributes 

  245. -Wignored-qualifiers  -Wno-incompatible-pointer-types 

  246. -Wimplicit  -Wimplicit-fallthrough  -Wimplicit-fallthrough=<var>n</var> 

  247. -Wno-implicit-function-declaration  -Wno-implicit-int 

  248. -Winit-self  -Winline  -Wno-int-conversion  -Wint-in-bool-context 

  249. -Wno-int-to-pointer-cast  -Wno-invalid-memory-model 

  250. -Winvalid-pch  -Wjump-misses-init  -Wlarger-than=<var>byte-size</var> 

  251. -Wlogical-not-parentheses  -Wlogical-op  -Wlong-long 

  252. -Wno-lto-type-mismatch -Wmain  -Wmaybe-uninitialized 

  253. -Wmemset-elt-size  -Wmemset-transposed-args 

  254. -Wmisleading-indentation  -Wmissing-attributes  -Wmissing-braces 

  255. -Wmissing-field-initializers  -Wmissing-format-attribute 

  256. -Wmissing-include-dirs  -Wmissing-noreturn  -Wno-missing-profile 

  257. -Wno-multichar  -Wmultistatement-macros  -Wnonnull  -Wnonnull-compare 

  258. -Wnormalized=<span class="roman">[</span>none<span class="roman">|</span>id<span class="roman">|</span>nfc<span class="roman">|</span>nfkc<span class="roman">]</span> 

  259. -Wnull-dereference  -Wno-odr  -Wopenmp-simd  

  260. -Wno-overflow  -Woverlength-strings  -Wno-override-init-side-effects 

  261. -Wpacked  -Wno-packed-bitfield-compat  -Wpacked-not-aligned  -Wpadded 

  262. -Wparentheses  -Wno-pedantic-ms-format 

  263. -Wpointer-arith  -Wno-pointer-compare  -Wno-pointer-to-int-cast 

  264. -Wno-pragmas  -Wno-prio-ctor-dtor  -Wredundant-decls 

  265. -Wrestrict  -Wno-return-local-addr  -Wreturn-type 

  266. -Wno-scalar-storage-order  -Wsequence-point 

  267. -Wshadow  -Wshadow=global  -Wshadow=local  -Wshadow=compatible-local 

  268. -Wno-shadow-ivar 

  269. -Wno-shift-count-negative  -Wno-shift-count-overflow  -Wshift-negative-value 

  270. -Wno-shift-overflow  -Wshift-overflow=<var>n</var> 

  271. -Wsign-compare  -Wsign-conversion 

  272. -Wno-sizeof-array-argument 

  273. -Wsizeof-pointer-div  -Wsizeof-pointer-memaccess 

  274. -Wstack-protector  -Wstack-usage=<var>byte-size</var>  -Wstrict-aliasing 

  275. -Wstrict-aliasing=n  -Wstrict-overflow  -Wstrict-overflow=<var>n</var> 

  276. -Wstring-compare 

  277. -Wstringop-overflow=<var>n</var>  -Wno-stringop-truncation 

  278. -Wsuggest-attribute=<span class="roman">[</span>pure<span class="roman">|</span>const<span class="roman">|</span>noreturn<span class="roman">|</span>format<span class="roman">|</span>malloc<span class="roman">]</span> 

  279. -Wswitch  -Wno-switch-bool  -Wswitch-default  -Wswitch-enum 

  280. -Wno-switch-outside-range  -Wno-switch-unreachable  -Wsync-nand 

  281. -Wsystem-headers  -Wtautological-compare  -Wtrampolines  -Wtrigraphs 

  282. -Wtype-limits  -Wundef 

  283. -Wuninitialized  -Wunknown-pragmas 

  284. -Wunsuffixed-float-constants  -Wunused 

  285. -Wunused-but-set-parameter  -Wunused-but-set-variable 

  286. -Wunused-const-variable  -Wunused-const-variable=<var>n</var> 

  287. -Wunused-function  -Wunused-label  -Wunused-local-typedefs 

  288. -Wunused-macros 

  289. -Wunused-parameter  -Wno-unused-result 

  290. -Wunused-value  -Wunused-variable 

  291. -Wno-varargs  -Wvariadic-macros 

  292. -Wvector-operation-performance 

  293. -Wvla  -Wvla-larger-than=<var>byte-size</var>  -Wno-vla-larger-than 

  294. -Wvolatile-register-var  -Wwrite-strings 

  295. -Wzero-length-bounds

  296. </pre></div>

  297. 

  298. </dd>

  299. <dt><em>Static Analyzer Options</em></dt>

  300. <dd><div class="smallexample">

  301. <pre class="smallexample">-fanalyzer 

  302. -fanalyzer-call-summaries 

  303. -fanalyzer-checker=<var>name</var> 

  304. -fanalyzer-fine-grained 

  305. -fanalyzer-state-merge 

  306. -fanalyzer-state-purge 

  307. -fanalyzer-transitivity 

  308. -fanalyzer-verbose-edges 

  309. -fanalyzer-verbose-state-changes 

  310. -fanalyzer-verbosity=<var>level</var> 

  311. -fdump-analyzer 

  312. -fdump-analyzer-stderr 

  313. -fdump-analyzer-callgraph 

  314. -fdump-analyzer-exploded-graph 

  315. -fdump-analyzer-exploded-nodes 

  316. -fdump-analyzer-exploded-nodes-2 

  317. -fdump-analyzer-exploded-nodes-3 

  318. -fdump-analyzer-state-purge 

  319. -fdump-analyzer-supergraph 

  320. -Wno-analyzer-double-fclose 

  321. -Wno-analyzer-double-free 

  322. -Wno-analyzer-exposure-through-output-file 

  323. -Wno-analyzer-file-leak 

  324. -Wno-analyzer-free-of-non-heap 

  325. -Wno-analyzer-malloc-leak 

  326. -Wno-analyzer-null-argument 

  327. -Wno-analyzer-null-dereference 

  328. -Wno-analyzer-possible-null-argument 

  329. -Wno-analyzer-possible-null-dereference 

  330. -Wno-analyzer-stale-setjmp-buffer 

  331. -Wno-analyzer-tainted-array-index 

  332. -Wanalyzer-too-complex 

  333. -Wno-analyzer-unsafe-call-within-signal-handler 

  334. -Wno-analyzer-use-after-free 

  335. -Wno-analyzer-use-of-pointer-in-stale-stack-frame 

  336. -Wno-analyzer-use-of-uninitialized-value 

  337. 

  338. </pre></div>

  339. 

  340. </dd>

  341. <dt><em>C and Objective-C-only Warning Options</em></dt>

  342. <dd><div class="smallexample">

  343. <pre class="smallexample">-Wbad-function-cast  -Wmissing-declarations 

  344. -Wmissing-parameter-type  -Wmissing-prototypes  -Wnested-externs 

  345. -Wold-style-declaration  -Wold-style-definition 

  346. -Wstrict-prototypes  -Wtraditional  -Wtraditional-conversion 

  347. -Wdeclaration-after-statement  -Wpointer-sign

  348. </pre></div>

  349. 

  350. </dd>

  351. <dt><em>Debugging Options</em></dt>

  352. <dd><p>See <a href="Debugging-Options.html#Debugging-Options">Options for Debugging Your Program</a>.

  353. </p><div class="smallexample">

  354. <pre class="smallexample">-g  -g<var>level</var>  -gdwarf  -gdwarf-<var>version</var> 

  355. -ggdb  -grecord-gcc-switches  -gno-record-gcc-switches 

  356. -gstabs  -gstabs+  -gstrict-dwarf  -gno-strict-dwarf 

  357. -gas-loc-support  -gno-as-loc-support 

  358. -gas-locview-support  -gno-as-locview-support 

  359. -gcolumn-info  -gno-column-info 

  360. -gstatement-frontiers  -gno-statement-frontiers 

  361. -gvariable-location-views  -gno-variable-location-views 

  362. -ginternal-reset-location-views  -gno-internal-reset-location-views 

  363. -ginline-points  -gno-inline-points 

  364. -gvms  -gxcoff  -gxcoff+  -gz<span class="roman">[</span>=<var>type</var><span class="roman">]</span> 

  365. -gsplit-dwarf  -gdescribe-dies  -gno-describe-dies 

  366. -fdebug-prefix-map=<var>old</var>=<var>new</var>  -fdebug-types-section 

  367. -fno-eliminate-unused-debug-types 

  368. -femit-struct-debug-baseonly  -femit-struct-debug-reduced 

  369. -femit-struct-debug-detailed<span class="roman">[</span>=<var>spec-list</var><span class="roman">]</span> 

  370. -fno-eliminate-unused-debug-symbols  -femit-class-debug-always 

  371. -fno-merge-debug-strings  -fno-dwarf2-cfi-asm 

  372. -fvar-tracking  -fvar-tracking-assignments

  373. </pre></div>

  374. 

  375. </dd>

  376. <dt><em>Optimization Options</em></dt>

  377. <dd><p>See <a href="Optimize-Options.html#Optimize-Options">Options that Control Optimization</a>.

  378. </p><div class="smallexample">

  379. <pre class="smallexample">-faggressive-loop-optimizations 

  380. -falign-functions[=<var>n</var>[:<var>m</var>:[<var>n2</var>[:<var>m2</var>]]]] 

  381. -falign-jumps[=<var>n</var>[:<var>m</var>:[<var>n2</var>[:<var>m2</var>]]]] 

  382. -falign-labels[=<var>n</var>[:<var>m</var>:[<var>n2</var>[:<var>m2</var>]]]] 

  383. -falign-loops[=<var>n</var>[:<var>m</var>:[<var>n2</var>[:<var>m2</var>]]]] 

  384. -fno-allocation-dce -fallow-store-data-races 

  385. -fassociative-math  -fauto-profile  -fauto-profile[=<var>path</var>] 

  386. -fauto-inc-dec  -fbranch-probabilities 

  387. -fcaller-saves 

  388. -fcombine-stack-adjustments  -fconserve-stack 

  389. -fcompare-elim  -fcprop-registers  -fcrossjumping 

  390. -fcse-follow-jumps  -fcse-skip-blocks  -fcx-fortran-rules 

  391. -fcx-limited-range 

  392. -fdata-sections  -fdce  -fdelayed-branch 

  393. -fdelete-null-pointer-checks  -fdevirtualize  -fdevirtualize-speculatively 

  394. -fdevirtualize-at-ltrans  -fdse 

  395. -fearly-inlining  -fipa-sra  -fexpensive-optimizations  -ffat-lto-objects 

  396. -ffast-math  -ffinite-math-only  -ffloat-store  -fexcess-precision=<var>style</var> 

  397. -ffinite-loops 

  398. -fforward-propagate  -ffp-contract=<var>style</var>  -ffunction-sections 

  399. -fgcse  -fgcse-after-reload  -fgcse-las  -fgcse-lm  -fgraphite-identity 

  400. -fgcse-sm  -fhoist-adjacent-loads  -fif-conversion 

  401. -fif-conversion2  -findirect-inlining 

  402. -finline-functions  -finline-functions-called-once  -finline-limit=<var>n</var> 

  403. -finline-small-functions  -fipa-cp  -fipa-cp-clone 

  404. -fipa-bit-cp  -fipa-vrp  -fipa-pta  -fipa-profile  -fipa-pure-const 

  405. -fipa-reference  -fipa-reference-addressable 

  406. -fipa-stack-alignment  -fipa-icf  -fira-algorithm=<var>algorithm</var> 

  407. -flive-patching=<var>level</var> 

  408. -fira-region=<var>region</var>  -fira-hoist-pressure 

  409. -fira-loop-pressure  -fno-ira-share-save-slots 

  410. -fno-ira-share-spill-slots 

  411. -fisolate-erroneous-paths-dereference  -fisolate-erroneous-paths-attribute 

  412. -fivopts  -fkeep-inline-functions  -fkeep-static-functions 

  413. -fkeep-static-consts  -flimit-function-alignment  -flive-range-shrinkage 

  414. -floop-block  -floop-interchange  -floop-strip-mine 

  415. -floop-unroll-and-jam  -floop-nest-optimize 

  416. -floop-parallelize-all  -flra-remat  -flto  -flto-compression-level 

  417. -flto-partition=<var>alg</var>  -fmerge-all-constants 

  418. -fmerge-constants  -fmodulo-sched  -fmodulo-sched-allow-regmoves 

  419. -fmove-loop-invariants  -fno-branch-count-reg 

  420. -fno-defer-pop  -fno-fp-int-builtin-inexact  -fno-function-cse 

  421. -fno-guess-branch-probability  -fno-inline  -fno-math-errno  -fno-peephole 

  422. -fno-peephole2  -fno-printf-return-value  -fno-sched-interblock 

  423. -fno-sched-spec  -fno-signed-zeros 

  424. -fno-toplevel-reorder  -fno-trapping-math  -fno-zero-initialized-in-bss 

  425. -fomit-frame-pointer  -foptimize-sibling-calls 

  426. -fpartial-inlining  -fpeel-loops  -fpredictive-commoning 

  427. -fprefetch-loop-arrays 

  428. -fprofile-correction 

  429. -fprofile-use  -fprofile-use=<var>path</var> -fprofile-partial-training 

  430. -fprofile-values -fprofile-reorder-functions 

  431. -freciprocal-math  -free  -frename-registers  -freorder-blocks 

  432. -freorder-blocks-algorithm=<var>algorithm</var> 

  433. -freorder-blocks-and-partition  -freorder-functions 

  434. -frerun-cse-after-loop  -freschedule-modulo-scheduled-loops 

  435. -frounding-math  -fsave-optimization-record 

  436. -fsched2-use-superblocks  -fsched-pressure 

  437. -fsched-spec-load  -fsched-spec-load-dangerous 

  438. -fsched-stalled-insns-dep[=<var>n</var>]  -fsched-stalled-insns[=<var>n</var>] 

  439. -fsched-group-heuristic  -fsched-critical-path-heuristic 

  440. -fsched-spec-insn-heuristic  -fsched-rank-heuristic 

  441. -fsched-last-insn-heuristic  -fsched-dep-count-heuristic 

  442. -fschedule-fusion 

  443. -fschedule-insns  -fschedule-insns2  -fsection-anchors 

  444. -fselective-scheduling  -fselective-scheduling2 

  445. -fsel-sched-pipelining  -fsel-sched-pipelining-outer-loops 

  446. -fsemantic-interposition  -fshrink-wrap  -fshrink-wrap-separate 

  447. -fsignaling-nans 

  448. -fsingle-precision-constant  -fsplit-ivs-in-unroller  -fsplit-loops

  449. -fsplit-paths 

  450. -fsplit-wide-types  -fsplit-wide-types-early  -fssa-backprop  -fssa-phiopt 

  451. -fstdarg-opt  -fstore-merging  -fstrict-aliasing 

  452. -fthread-jumps  -ftracer  -ftree-bit-ccp 

  453. -ftree-builtin-call-dce  -ftree-ccp  -ftree-ch 

  454. -ftree-coalesce-vars  -ftree-copy-prop  -ftree-dce  -ftree-dominator-opts 

  455. -ftree-dse  -ftree-forwprop  -ftree-fre  -fcode-hoisting 

  456. -ftree-loop-if-convert  -ftree-loop-im 

  457. -ftree-phiprop  -ftree-loop-distribution  -ftree-loop-distribute-patterns 

  458. -ftree-loop-ivcanon  -ftree-loop-linear  -ftree-loop-optimize 

  459. -ftree-loop-vectorize 

  460. -ftree-parallelize-loops=<var>n</var>  -ftree-pre  -ftree-partial-pre  -ftree-pta 

  461. -ftree-reassoc  -ftree-scev-cprop  -ftree-sink  -ftree-slsr  -ftree-sra 

  462. -ftree-switch-conversion  -ftree-tail-merge 

  463. -ftree-ter  -ftree-vectorize  -ftree-vrp  -funconstrained-commons 

  464. -funit-at-a-time  -funroll-all-loops  -funroll-loops 

  465. -funsafe-math-optimizations  -funswitch-loops 

  466. -fipa-ra  -fvariable-expansion-in-unroller  -fvect-cost-model  -fvpt 

  467. -fweb  -fwhole-program  -fwpa  -fuse-linker-plugin 

  468. --param <var>name</var>=<var>value</var>

  469. -O  -O0  -O1  -O2  -O3  -Os  -Ofast  -Og

  470. </pre></div>

  471. 

  472. </dd>

  473. <dt><em>Program Instrumentation Options</em></dt>

  474. <dd><p>See <a href="Instrumentation-Options.html#Instrumentation-Options">Program Instrumentation Options</a>.

  475. </p><div class="smallexample">

  476. <pre class="smallexample">-p  -pg  -fprofile-arcs  --coverage  -ftest-coverage 

  477. -fprofile-abs-path 

  478. -fprofile-dir=<var>path</var>  -fprofile-generate  -fprofile-generate=<var>path</var> 

  479. -fprofile-note=<var>path</var> -fprofile-prefix-path=<var>path</var> 

  480. -fprofile-update=<var>method</var> -fprofile-filter-files=<var>regex</var> 

  481. -fprofile-exclude-files=<var>regex</var> 

  482. -fprofile-reproducible=<span class="roman">[</span>multithreaded<span class="roman">|</span>parallel-runs<span class="roman">|</span>serial<span class="roman">]</span> 

  483. -fsanitize=<var>style</var>  -fsanitize-recover  -fsanitize-recover=<var>style</var> 

  484. -fasan-shadow-offset=<var>number</var>  -fsanitize-sections=<var>s1</var>,<var>s2</var>,... 

  485. -fsanitize-undefined-trap-on-error  -fbounds-check 

  486. -fcf-protection=<span class="roman">[</span>full<span class="roman">|</span>branch<span class="roman">|</span>return<span class="roman">|</span>none<span class="roman">|</span>check<span class="roman">]</span> 

  487. -fstack-protector  -fstack-protector-all  -fstack-protector-strong 

  488. -fstack-protector-explicit  -fstack-check 

  489. -fstack-limit-register=<var>reg</var>  -fstack-limit-symbol=<var>sym</var> 

  490. -fno-stack-limit  -fsplit-stack 

  491. -fvtable-verify=<span class="roman">[</span>std<span class="roman">|</span>preinit<span class="roman">|</span>none<span class="roman">]</span> 

  492. -fvtv-counts  -fvtv-debug 

  493. -finstrument-functions 

  494. -finstrument-functions-exclude-function-list=<var>sym</var>,<var>sym</var>,&hellip; 

  495. -finstrument-functions-exclude-file-list=<var>file</var>,<var>file</var>,&hellip;

  496. </pre></div>

  497. 

  498. </dd>

  499. <dt><em>Preprocessor Options</em></dt>

  500. <dd><p>See <a href="Preprocessor-Options.html#Preprocessor-Options">Options Controlling the Preprocessor</a>.

  501. </p><div class="smallexample">

  502. <pre class="smallexample">-A<var>question</var>=<var>answer</var> 

  503. -A-<var>question</var><span class="roman">[</span>=<var>answer</var><span class="roman">]</span> 

  504. -C  -CC  -D<var>macro</var><span class="roman">[</span>=<var>defn</var><span class="roman">]</span> 

  505. -dD  -dI  -dM  -dN  -dU 

  506. -fdebug-cpp  -fdirectives-only  -fdollars-in-identifiers  

  507. -fexec-charset=<var>charset</var>  -fextended-identifiers  

  508. -finput-charset=<var>charset</var>  -fmacro-prefix-map=<var>old</var>=<var>new</var>  

  509. -fmax-include-depth=<var>depth</var> 

  510. -fno-canonical-system-headers  -fpch-deps  -fpch-preprocess  

  511. -fpreprocessed  -ftabstop=<var>width</var>  -ftrack-macro-expansion  

  512. -fwide-exec-charset=<var>charset</var>  -fworking-directory 

  513. -H  -imacros <var>file</var>  -include <var>file</var> 

  514. -M  -MD  -MF  -MG  -MM  -MMD  -MP  -MQ  -MT 

  515. -no-integrated-cpp  -P  -pthread  -remap 

  516. -traditional  -traditional-cpp  -trigraphs 

  517. -U<var>macro</var>  -undef  

  518. -Wp,<var>option</var>  -Xpreprocessor <var>option</var>

  519. </pre></div>

  520. 

  521. </dd>

  522. <dt><em>Assembler Options</em></dt>

  523. <dd><p>See <a href="Assembler-Options.html#Assembler-Options">Passing Options to the Assembler</a>.

  524. </p><div class="smallexample">

  525. <pre class="smallexample">-Wa,<var>option</var>  -Xassembler <var>option</var>

  526. </pre></div>

  527. 

  528. </dd>

  529. <dt><em>Linker Options</em></dt>

  530. <dd><p>See <a href="Link-Options.html#Link-Options">Options for Linking</a>.

  531. </p><div class="smallexample">

  532. <pre class="smallexample"><var>object-file-name</var>  -fuse-ld=<var>linker</var>  -l<var>library</var> 

  533. -nostartfiles  -nodefaultlibs  -nolibc  -nostdlib 

  534. -e <var>entry</var>  --entry=<var>entry</var> 

  535. -pie  -pthread  -r  -rdynamic 

  536. -s  -static  -static-pie  -static-libgcc  -static-libstdc++ 

  537. -static-libasan  -static-libtsan  -static-liblsan  -static-libubsan 

  538. -shared  -shared-libgcc  -symbolic 

  539. -T <var>script</var>  -Wl,<var>option</var>  -Xlinker <var>option</var> 

  540. -u <var>symbol</var>  -z <var>keyword</var>

  541. </pre></div>

  542. 

  543. </dd>

  544. <dt><em>Directory Options</em></dt>

  545. <dd><p>See <a href="Directory-Options.html#Directory-Options">Options for Directory Search</a>.

  546. </p><div class="smallexample">

  547. <pre class="smallexample">-B<var>prefix</var>  -I<var>dir</var>  -I- 

  548. -idirafter <var>dir</var> 

  549. -imacros <var>file</var>  -imultilib <var>dir</var> 

  550. -iplugindir=<var>dir</var>  -iprefix <var>file</var> 

  551. -iquote <var>dir</var>  -isysroot <var>dir</var>  -isystem <var>dir</var> 

  552. -iwithprefix <var>dir</var>  -iwithprefixbefore <var>dir</var>  

  553. -L<var>dir</var>  -no-canonical-prefixes  --no-sysroot-suffix 

  554. -nostdinc  -nostdinc++  --sysroot=<var>dir</var>

  555. </pre></div>

  556. 

  557. </dd>

  558. <dt><em>Code Generation Options</em></dt>

  559. <dd><p>See <a href="Code-Gen-Options.html#Code-Gen-Options">Options for Code Generation Conventions</a>.

  560. </p><div class="smallexample">

  561. <pre class="smallexample">-fcall-saved-<var>reg</var>  -fcall-used-<var>reg</var> 

  562. -ffixed-<var>reg</var>  -fexceptions 

  563. -fnon-call-exceptions  -fdelete-dead-exceptions  -funwind-tables 

  564. -fasynchronous-unwind-tables 

  565. -fno-gnu-unique 

  566. -finhibit-size-directive  -fcommon  -fno-ident 

  567. -fpcc-struct-return  -fpic  -fPIC  -fpie  -fPIE  -fno-plt 

  568. -fno-jump-tables 

  569. -frecord-gcc-switches 

  570. -freg-struct-return  -fshort-enums  -fshort-wchar 

  571. -fverbose-asm  -fpack-struct[=<var>n</var>]  

  572. -fleading-underscore  -ftls-model=<var>model</var> 

  573. -fstack-reuse=<var>reuse_level</var> 

  574. -ftrampolines  -ftrapv  -fwrapv 

  575. -fvisibility=<span class="roman">[</span>default<span class="roman">|</span>internal<span class="roman">|</span>hidden<span class="roman">|</span>protected<span class="roman">]</span> 

  576. -fstrict-volatile-bitfields  -fsync-libcalls

  577. </pre></div>

  578. 

  579. </dd>

  580. <dt><em>Developer Options</em></dt>

  581. <dd><p>See <a href="Developer-Options.html#Developer-Options">GCC Developer Options</a>.

  582. </p><div class="smallexample">

  583. <pre class="smallexample">-d<var>letters</var>  -dumpspecs  -dumpmachine  -dumpversion 

  584. -dumpfullversion  -fcallgraph-info<span class="roman">[</span>=su,da<span class="roman">]</span>

  585. -fchecking  -fchecking=<var>n</var>

  586. -fdbg-cnt-list   -fdbg-cnt=<var>counter-value-list</var> 

  587. -fdisable-ipa-<var>pass_name</var> 

  588. -fdisable-rtl-<var>pass_name</var> 

  589. -fdisable-rtl-<var>pass-name</var>=<var>range-list</var> 

  590. -fdisable-tree-<var>pass_name</var> 

  591. -fdisable-tree-<var>pass-name</var>=<var>range-list</var> 

  592. -fdump-debug  -fdump-earlydebug 

  593. -fdump-noaddr  -fdump-unnumbered  -fdump-unnumbered-links 

  594. -fdump-final-insns<span class="roman">[</span>=<var>file</var><span class="roman">]</span> 

  595. -fdump-ipa-all  -fdump-ipa-cgraph  -fdump-ipa-inline 

  596. -fdump-lang-all 

  597. -fdump-lang-<var>switch</var> 

  598. -fdump-lang-<var>switch</var>-<var>options</var> 

  599. -fdump-lang-<var>switch</var>-<var>options</var>=<var>filename</var> 

  600. -fdump-passes 

  601. -fdump-rtl-<var>pass</var>  -fdump-rtl-<var>pass</var>=<var>filename</var> 

  602. -fdump-statistics 

  603. -fdump-tree-all 

  604. -fdump-tree-<var>switch</var> 

  605. -fdump-tree-<var>switch</var>-<var>options</var> 

  606. -fdump-tree-<var>switch</var>-<var>options</var>=<var>filename</var> 

  607. -fcompare-debug<span class="roman">[</span>=<var>opts</var><span class="roman">]</span>  -fcompare-debug-second 

  608. -fenable-<var>kind</var>-<var>pass</var> 

  609. -fenable-<var>kind</var>-<var>pass</var>=<var>range-list</var> 

  610. -fira-verbose=<var>n</var> 

  611. -flto-report  -flto-report-wpa  -fmem-report-wpa 

  612. -fmem-report  -fpre-ipa-mem-report  -fpost-ipa-mem-report 

  613. -fopt-info  -fopt-info-<var>options</var><span class="roman">[</span>=<var>file</var><span class="roman">]</span> 

  614. -fprofile-report 

  615. -frandom-seed=<var>string</var>  -fsched-verbose=<var>n</var> 

  616. -fsel-sched-verbose  -fsel-sched-dump-cfg  -fsel-sched-pipelining-verbose 

  617. -fstats  -fstack-usage  -ftime-report  -ftime-report-details 

  618. -fvar-tracking-assignments-toggle  -gtoggle 

  619. -print-file-name=<var>library</var>  -print-libgcc-file-name 

  620. -print-multi-directory  -print-multi-lib  -print-multi-os-directory 

  621. -print-prog-name=<var>program</var>  -print-search-dirs  -Q 

  622. -print-sysroot  -print-sysroot-headers-suffix 

  623. -save-temps  -save-temps=cwd  -save-temps=obj  -time<span class="roman">[</span>=<var>file</var><span class="roman">]</span>

  624. </pre></div>

  625. 

  626. </dd>

  627. <dt><em>Machine-Dependent Options</em></dt>

  628. <dd><p>See <a href="Submodel-Options.html#Submodel-Options">Machine-Dependent Options</a>.

  629. </p>

  630. <p><em>AArch64 Options</em>

  631. </p><div class="smallexample">

  632. <pre class="smallexample">-mabi=<var>name</var>  -mbig-endian  -mlittle-endian 

  633. -mgeneral-regs-only 

  634. -mcmodel=tiny  -mcmodel=small  -mcmodel=large 

  635. -mstrict-align  -mno-strict-align 

  636. -momit-leaf-frame-pointer 

  637. -mtls-dialect=desc  -mtls-dialect=traditional 

  638. -mtls-size=<var>size</var> 

  639. -mfix-cortex-a53-835769  -mfix-cortex-a53-843419 

  640. -mlow-precision-recip-sqrt  -mlow-precision-sqrt  -mlow-precision-div 

  641. -mpc-relative-literal-loads 

  642. -msign-return-address=<var>scope</var> 

  643. -mbranch-protection=<var>none</var>|<var>standard</var>|<var>pac-ret</var>[+<var>leaf</var>

  644. +<var>b-key</var>]|<var>bti</var> 

  645. -mharden-sls=<var>opts</var> 

  646. -march=<var>name</var>  -mcpu=<var>name</var>  -mtune=<var>name</var>  

  647. -moverride=<var>string</var>  -mverbose-cost-dump 

  648. -mstack-protector-guard=<var>guard</var> -mstack-protector-guard-reg=<var>sysreg</var> 

  649. -mstack-protector-guard-offset=<var>offset</var> -mtrack-speculation 

  650. -moutline-atomics 

  651. </pre></div>

  652. 

  653. <p><em>Adapteva Epiphany Options</em>

  654. </p><div class="smallexample">

  655. <pre class="smallexample">-mhalf-reg-file  -mprefer-short-insn-regs 

  656. -mbranch-cost=<var>num</var>  -mcmove  -mnops=<var>num</var>  -msoft-cmpsf 

  657. -msplit-lohi  -mpost-inc  -mpost-modify  -mstack-offset=<var>num</var> 

  658. -mround-nearest  -mlong-calls  -mshort-calls  -msmall16 

  659. -mfp-mode=<var>mode</var>  -mvect-double  -max-vect-align=<var>num</var> 

  660. -msplit-vecmove-early  -m1reg-<var>reg</var>

  661. </pre></div>

  662. 

  663. <p><em>AMD GCN Options</em>

  664. </p><div class="smallexample">

  665. <pre class="smallexample">-march=<var>gpu</var> -mtune=<var>gpu</var> -mstack-size=<var>bytes</var>

  666. </pre></div>

  667. 

  668. <p><em>ARC Options</em>

  669. </p><div class="smallexample">

  670. <pre class="smallexample">-mbarrel-shifter  -mjli-always 

  671. -mcpu=<var>cpu</var>  -mA6  -mARC600  -mA7  -mARC700 

  672. -mdpfp  -mdpfp-compact  -mdpfp-fast  -mno-dpfp-lrsr 

  673. -mea  -mno-mpy  -mmul32x16  -mmul64  -matomic 

  674. -mnorm  -mspfp  -mspfp-compact  -mspfp-fast  -msimd  -msoft-float  -mswap 

  675. -mcrc  -mdsp-packa  -mdvbf  -mlock  -mmac-d16  -mmac-24  -mrtsc  -mswape 

  676. -mtelephony  -mxy  -misize  -mannotate-align  -marclinux  -marclinux_prof 

  677. -mlong-calls  -mmedium-calls  -msdata  -mirq-ctrl-saved 

  678. -mrgf-banked-regs  -mlpc-width=<var>width</var>  -G <var>num</var> 

  679. -mvolatile-cache  -mtp-regno=<var>regno</var> 

  680. -malign-call  -mauto-modify-reg  -mbbit-peephole  -mno-brcc 

  681. -mcase-vector-pcrel  -mcompact-casesi  -mno-cond-exec  -mearly-cbranchsi 

  682. -mexpand-adddi  -mindexed-loads  -mlra  -mlra-priority-none 

  683. -mlra-priority-compact mlra-priority-noncompact  -mmillicode 

  684. -mmixed-code  -mq-class  -mRcq  -mRcw  -msize-level=<var>level</var> 

  685. -mtune=<var>cpu</var>  -mmultcost=<var>num</var>  -mcode-density-frame 

  686. -munalign-prob-threshold=<var>probability</var>  -mmpy-option=<var>multo</var> 

  687. -mdiv-rem  -mcode-density  -mll64  -mfpu=<var>fpu</var>  -mrf16  -mbranch-index

  688. </pre></div>

  689. 

  690. <p><em>ARM Options</em>

  691. </p><div class="smallexample">

  692. <pre class="smallexample">-mapcs-frame  -mno-apcs-frame 

  693. -mabi=<var>name</var> 

  694. -mapcs-stack-check  -mno-apcs-stack-check 

  695. -mapcs-reentrant  -mno-apcs-reentrant 

  696. -mgeneral-regs-only 

  697. -msched-prolog  -mno-sched-prolog 

  698. -mlittle-endian  -mbig-endian 

  699. -mbe8  -mbe32 

  700. -mfloat-abi=<var>name</var> 

  701. -mfp16-format=<var>name</var>

  702. -mthumb-interwork  -mno-thumb-interwork 

  703. -mcpu=<var>name</var>  -march=<var>name</var>  -mfpu=<var>name</var>  

  704. -mtune=<var>name</var>  -mprint-tune-info 

  705. -mstructure-size-boundary=<var>n</var> 

  706. -mabort-on-noreturn 

  707. -mlong-calls  -mno-long-calls 

  708. -msingle-pic-base  -mno-single-pic-base 

  709. -mpic-register=<var>reg</var> 

  710. -mnop-fun-dllimport 

  711. -mpoke-function-name 

  712. -mthumb  -marm  -mflip-thumb 

  713. -mtpcs-frame  -mtpcs-leaf-frame 

  714. -mcaller-super-interworking  -mcallee-super-interworking 

  715. -mtp=<var>name</var>  -mtls-dialect=<var>dialect</var> 

  716. -mword-relocations 

  717. -mfix-cortex-m3-ldrd 

  718. -munaligned-access 

  719. -mneon-for-64bits 

  720. -mslow-flash-data 

  721. -masm-syntax-unified 

  722. -mrestrict-it 

  723. -mverbose-cost-dump 

  724. -mpure-code 

  725. -mcmse 

  726. -mfdpic

  727. </pre></div>

  728. 

  729. <p><em>AVR Options</em>

  730. </p><div class="smallexample">

  731. <pre class="smallexample">-mmcu=<var>mcu</var>  -mabsdata  -maccumulate-args 

  732. -mbranch-cost=<var>cost</var> 

  733. -mcall-prologues  -mgas-isr-prologues  -mint8 

  734. -mdouble=<var>bits</var> -mlong-double=<var>bits</var> 

  735. -mn_flash=<var>size</var>  -mno-interrupts 

  736. -mmain-is-OS_task  -mrelax  -mrmw  -mstrict-X  -mtiny-stack 

  737. -mfract-convert-truncate 

  738. -mshort-calls  -nodevicelib  -nodevicespecs 

  739. -Waddr-space-convert  -Wmisspelled-isr

  740. </pre></div>

  741. 

  742. <p><em>Blackfin Options</em>

  743. </p><div class="smallexample">

  744. <pre class="smallexample">-mcpu=<var>cpu</var><span class="roman">[</span>-<var>sirevision</var><span class="roman">]</span> 

  745. -msim  -momit-leaf-frame-pointer  -mno-omit-leaf-frame-pointer 

  746. -mspecld-anomaly  -mno-specld-anomaly  -mcsync-anomaly  -mno-csync-anomaly 

  747. -mlow-64k  -mno-low64k  -mstack-check-l1  -mid-shared-library 

  748. -mno-id-shared-library  -mshared-library-id=<var>n</var> 

  749. -mleaf-id-shared-library  -mno-leaf-id-shared-library 

  750. -msep-data  -mno-sep-data  -mlong-calls  -mno-long-calls 

  751. -mfast-fp  -minline-plt  -mmulticore  -mcorea  -mcoreb  -msdram 

  752. -micplb

  753. </pre></div>

  754. 

  755. <p><em>C6X Options</em>

  756. </p><div class="smallexample">

  757. <pre class="smallexample">-mbig-endian  -mlittle-endian  -march=<var>cpu</var> 

  758. -msim  -msdata=<var>sdata-type</var>

  759. </pre></div>

  760. 

  761. <p><em>CRIS Options</em>

  762. </p><div class="smallexample">

  763. <pre class="smallexample">-mcpu=<var>cpu</var>  -march=<var>cpu</var>  -mtune=<var>cpu</var> 

  764. -mmax-stack-frame=<var>n</var>  -melinux-stacksize=<var>n</var> 

  765. -metrax4  -metrax100  -mpdebug  -mcc-init  -mno-side-effects 

  766. -mstack-align  -mdata-align  -mconst-align 

  767. -m32-bit  -m16-bit  -m8-bit  -mno-prologue-epilogue  -mno-gotplt 

  768. -melf  -maout  -melinux  -mlinux  -sim  -sim2 

  769. -mmul-bug-workaround  -mno-mul-bug-workaround

  770. </pre></div>

  771. 

  772. <p><em>CR16 Options</em>

  773. </p><div class="smallexample">

  774. <pre class="smallexample">-mmac 

  775. -mcr16cplus  -mcr16c 

  776. -msim  -mint32  -mbit-ops

  777. -mdata-model=<var>model</var>

  778. </pre></div>

  779. 

  780. <p><em>C-SKY Options</em>

  781. </p><div class="smallexample">

  782. <pre class="smallexample">-march=<var>arch</var>  -mcpu=<var>cpu</var> 

  783. -mbig-endian  -EB  -mlittle-endian  -EL 

  784. -mhard-float  -msoft-float  -mfpu=<var>fpu</var>  -mdouble-float  -mfdivdu 

  785. -melrw  -mistack  -mmp  -mcp  -mcache  -msecurity  -mtrust 

  786. -mdsp  -medsp  -mvdsp 

  787. -mdiv  -msmart  -mhigh-registers  -manchor 

  788. -mpushpop  -mmultiple-stld  -mconstpool  -mstack-size  -mccrt 

  789. -mbranch-cost=<var>n</var>  -mcse-cc  -msched-prolog

  790. </pre></div>

  791. 

  792. <p><em>Darwin Options</em>

  793. </p><div class="smallexample">

  794. <pre class="smallexample">-all_load  -allowable_client  -arch  -arch_errors_fatal 

  795. -arch_only  -bind_at_load  -bundle  -bundle_loader 

  796. -client_name  -compatibility_version  -current_version 

  797. -dead_strip 

  798. -dependency-file  -dylib_file  -dylinker_install_name 

  799. -dynamic  -dynamiclib  -exported_symbols_list 

  800. -filelist  -flat_namespace  -force_cpusubtype_ALL 

  801. -force_flat_namespace  -headerpad_max_install_names 

  802. -iframework 

  803. -image_base  -init  -install_name  -keep_private_externs 

  804. -multi_module  -multiply_defined  -multiply_defined_unused 

  805. -noall_load   -no_dead_strip_inits_and_terms 

  806. -nofixprebinding  -nomultidefs  -noprebind  -noseglinkedit 

  807. -pagezero_size  -prebind  -prebind_all_twolevel_modules 

  808. -private_bundle  -read_only_relocs  -sectalign 

  809. -sectobjectsymbols  -whyload  -seg1addr 

  810. -sectcreate  -sectobjectsymbols  -sectorder 

  811. -segaddr  -segs_read_only_addr  -segs_read_write_addr 

  812. -seg_addr_table  -seg_addr_table_filename  -seglinkedit 

  813. -segprot  -segs_read_only_addr  -segs_read_write_addr 

  814. -single_module  -static  -sub_library  -sub_umbrella 

  815. -twolevel_namespace  -umbrella  -undefined 

  816. -unexported_symbols_list  -weak_reference_mismatches 

  817. -whatsloaded  -F  -gused  -gfull  -mmacosx-version-min=<var>version</var> 

  818. -mkernel  -mone-byte-bool

  819. </pre></div>

  820. 

  821. <p><em>DEC Alpha Options</em>

  822. </p><div class="smallexample">

  823. <pre class="smallexample">-mno-fp-regs  -msoft-float 

  824. -mieee  -mieee-with-inexact  -mieee-conformant 

  825. -mfp-trap-mode=<var>mode</var>  -mfp-rounding-mode=<var>mode</var> 

  826. -mtrap-precision=<var>mode</var>  -mbuild-constants 

  827. -mcpu=<var>cpu-type</var>  -mtune=<var>cpu-type</var> 

  828. -mbwx  -mmax  -mfix  -mcix 

  829. -mfloat-vax  -mfloat-ieee 

  830. -mexplicit-relocs  -msmall-data  -mlarge-data 

  831. -msmall-text  -mlarge-text 

  832. -mmemory-latency=<var>time</var>

  833. </pre></div>

  834. 

  835. <p><em>eBPF Options</em>

  836. </p><div class="smallexample">

  837. <pre class="smallexample">-mbig-endian -mlittle-endian -mkernel=<var>version</var>

  838. -mframe-limit=<var>bytes</var> -mxbpf

  839. </pre></div>

  840. 

  841. <p><em>FR30 Options</em>

  842. </p><div class="smallexample">

  843. <pre class="smallexample">-msmall-model  -mno-lsim

  844. </pre></div>

  845. 

  846. <p><em>FT32 Options</em>

  847. </p><div class="smallexample">

  848. <pre class="smallexample">-msim  -mlra  -mnodiv  -mft32b  -mcompress  -mnopm

  849. </pre></div>

  850. 

  851. <p><em>FRV Options</em>

  852. </p><div class="smallexample">

  853. <pre class="smallexample">-mgpr-32  -mgpr-64  -mfpr-32  -mfpr-64 

  854. -mhard-float  -msoft-float 

  855. -malloc-cc  -mfixed-cc  -mdword  -mno-dword 

  856. -mdouble  -mno-double 

  857. -mmedia  -mno-media  -mmuladd  -mno-muladd 

  858. -mfdpic  -minline-plt  -mgprel-ro  -multilib-library-pic 

  859. -mlinked-fp  -mlong-calls  -malign-labels 

  860. -mlibrary-pic  -macc-4  -macc-8 

  861. -mpack  -mno-pack  -mno-eflags  -mcond-move  -mno-cond-move 

  862. -moptimize-membar  -mno-optimize-membar 

  863. -mscc  -mno-scc  -mcond-exec  -mno-cond-exec 

  864. -mvliw-branch  -mno-vliw-branch 

  865. -mmulti-cond-exec  -mno-multi-cond-exec  -mnested-cond-exec 

  866. -mno-nested-cond-exec  -mtomcat-stats 

  867. -mTLS  -mtls 

  868. -mcpu=<var>cpu</var>

  869. </pre></div>

  870. 

  871. <p><em>GNU/Linux Options</em>

  872. </p><div class="smallexample">

  873. <pre class="smallexample">-mglibc  -muclibc  -mmusl  -mbionic  -mandroid 

  874. -tno-android-cc  -tno-android-ld

  875. </pre></div>

  876. 

  877. <p><em>H8/300 Options</em>

  878. </p><div class="smallexample">

  879. <pre class="smallexample">-mrelax  -mh  -ms  -mn  -mexr  -mno-exr  -mint32  -malign-300

  880. </pre></div>

  881. 

  882. <p><em>HPPA Options</em>

  883. </p><div class="smallexample">

  884. <pre class="smallexample">-march=<var>architecture-type</var> 

  885. -mcaller-copies  -mdisable-fpregs  -mdisable-indexing 

  886. -mfast-indirect-calls  -mgas  -mgnu-ld   -mhp-ld 

  887. -mfixed-range=<var>register-range</var> 

  888. -mjump-in-delay  -mlinker-opt  -mlong-calls 

  889. -mlong-load-store  -mno-disable-fpregs 

  890. -mno-disable-indexing  -mno-fast-indirect-calls  -mno-gas 

  891. -mno-jump-in-delay  -mno-long-load-store 

  892. -mno-portable-runtime  -mno-soft-float 

  893. -mno-space-regs  -msoft-float  -mpa-risc-1-0 

  894. -mpa-risc-1-1  -mpa-risc-2-0  -mportable-runtime 

  895. -mschedule=<var>cpu-type</var>  -mspace-regs  -msio  -mwsio 

  896. -munix=<var>unix-std</var>  -nolibdld  -static  -threads

  897. </pre></div>

  898. 

  899. <p><em>IA-64 Options</em>

  900. </p><div class="smallexample">

  901. <pre class="smallexample">-mbig-endian  -mlittle-endian  -mgnu-as  -mgnu-ld  -mno-pic 

  902. -mvolatile-asm-stop  -mregister-names  -msdata  -mno-sdata 

  903. -mconstant-gp  -mauto-pic  -mfused-madd 

  904. -minline-float-divide-min-latency 

  905. -minline-float-divide-max-throughput 

  906. -mno-inline-float-divide 

  907. -minline-int-divide-min-latency 

  908. -minline-int-divide-max-throughput  

  909. -mno-inline-int-divide 

  910. -minline-sqrt-min-latency  -minline-sqrt-max-throughput 

  911. -mno-inline-sqrt 

  912. -mdwarf2-asm  -mearly-stop-bits 

  913. -mfixed-range=<var>register-range</var>  -mtls-size=<var>tls-size</var> 

  914. -mtune=<var>cpu-type</var>  -milp32  -mlp64 

  915. -msched-br-data-spec  -msched-ar-data-spec  -msched-control-spec 

  916. -msched-br-in-data-spec  -msched-ar-in-data-spec  -msched-in-control-spec 

  917. -msched-spec-ldc  -msched-spec-control-ldc 

  918. -msched-prefer-non-data-spec-insns  -msched-prefer-non-control-spec-insns 

  919. -msched-stop-bits-after-every-cycle  -msched-count-spec-in-critical-path 

  920. -msel-sched-dont-check-control-spec  -msched-fp-mem-deps-zero-cost 

  921. -msched-max-memory-insns-hard-limit  -msched-max-memory-insns=<var>max-insns</var>

  922. </pre></div>

  923. 

  924. <p><em>LM32 Options</em>

  925. </p><div class="smallexample">

  926. <pre class="smallexample">-mbarrel-shift-enabled  -mdivide-enabled  -mmultiply-enabled 

  927. -msign-extend-enabled  -muser-enabled

  928. </pre></div>

  929. 

  930. <p><em>M32R/D Options</em>

  931. </p><div class="smallexample">

  932. <pre class="smallexample">-m32r2  -m32rx  -m32r 

  933. -mdebug 

  934. -malign-loops  -mno-align-loops 

  935. -missue-rate=<var>number</var> 

  936. -mbranch-cost=<var>number</var> 

  937. -mmodel=<var>code-size-model-type</var> 

  938. -msdata=<var>sdata-type</var> 

  939. -mno-flush-func  -mflush-func=<var>name</var> 

  940. -mno-flush-trap  -mflush-trap=<var>number</var> 

  941. -G <var>num</var>

  942. </pre></div>

  943. 

  944. <p><em>M32C Options</em>

  945. </p><div class="smallexample">

  946. <pre class="smallexample">-mcpu=<var>cpu</var>  -msim  -memregs=<var>number</var>

  947. </pre></div>

  948. 

  949. <p><em>M680x0 Options</em>

  950. </p><div class="smallexample">

  951. <pre class="smallexample">-march=<var>arch</var>  -mcpu=<var>cpu</var>  -mtune=<var>tune</var> 

  952. -m68000  -m68020  -m68020-40  -m68020-60  -m68030  -m68040 

  953. -m68060  -mcpu32  -m5200  -m5206e  -m528x  -m5307  -m5407 

  954. -mcfv4e  -mbitfield  -mno-bitfield  -mc68000  -mc68020 

  955. -mnobitfield  -mrtd  -mno-rtd  -mdiv  -mno-div  -mshort 

  956. -mno-short  -mhard-float  -m68881  -msoft-float  -mpcrel 

  957. -malign-int  -mstrict-align  -msep-data  -mno-sep-data 

  958. -mshared-library-id=n  -mid-shared-library  -mno-id-shared-library 

  959. -mxgot  -mno-xgot  -mlong-jump-table-offsets

  960. </pre></div>

  961. 

  962. <p><em>MCore Options</em>

  963. </p><div class="smallexample">

  964. <pre class="smallexample">-mhardlit  -mno-hardlit  -mdiv  -mno-div  -mrelax-immediates 

  965. -mno-relax-immediates  -mwide-bitfields  -mno-wide-bitfields 

  966. -m4byte-functions  -mno-4byte-functions  -mcallgraph-data 

  967. -mno-callgraph-data  -mslow-bytes  -mno-slow-bytes  -mno-lsim 

  968. -mlittle-endian  -mbig-endian  -m210  -m340  -mstack-increment

  969. </pre></div>

  970. 

  971. <p><em>MeP Options</em>

  972. </p><div class="smallexample">

  973. <pre class="smallexample">-mabsdiff  -mall-opts  -maverage  -mbased=<var>n</var>  -mbitops 

  974. -mc=<var>n</var>  -mclip  -mconfig=<var>name</var>  -mcop  -mcop32  -mcop64  -mivc2 

  975. -mdc  -mdiv  -meb  -mel  -mio-volatile  -ml  -mleadz  -mm  -mminmax 

  976. -mmult  -mno-opts  -mrepeat  -ms  -msatur  -msdram  -msim  -msimnovec  -mtf 

  977. -mtiny=<var>n</var>

  978. </pre></div>

  979. 

  980. <p><em>MicroBlaze Options</em>

  981. </p><div class="smallexample">

  982. <pre class="smallexample">-msoft-float  -mhard-float  -msmall-divides  -mcpu=<var>cpu</var> 

  983. -mmemcpy  -mxl-soft-mul  -mxl-soft-div  -mxl-barrel-shift 

  984. -mxl-pattern-compare  -mxl-stack-check  -mxl-gp-opt  -mno-clearbss 

  985. -mxl-multiply-high  -mxl-float-convert  -mxl-float-sqrt 

  986. -mbig-endian  -mlittle-endian  -mxl-reorder  -mxl-mode-<var>app-model</var> 

  987. -mpic-data-is-text-relative

  988. </pre></div>

  989. 

  990. <p><em>MIPS Options</em>

  991. </p><div class="smallexample">

  992. <pre class="smallexample">-EL  -EB  -march=<var>arch</var>  -mtune=<var>arch</var> 

  993. -mips1  -mips2  -mips3  -mips4  -mips32  -mips32r2  -mips32r3  -mips32r5 

  994. -mips32r6  -mips64  -mips64r2  -mips64r3  -mips64r5  -mips64r6 

  995. -mips16  -mno-mips16  -mflip-mips16 

  996. -minterlink-compressed  -mno-interlink-compressed 

  997. -minterlink-mips16  -mno-interlink-mips16 

  998. -mabi=<var>abi</var>  -mabicalls  -mno-abicalls 

  999. -mshared  -mno-shared  -mplt  -mno-plt  -mxgot  -mno-xgot 

  1000. -mgp32  -mgp64  -mfp32  -mfpxx  -mfp64  -mhard-float  -msoft-float 

  1001. -mno-float  -msingle-float  -mdouble-float 

  1002. -modd-spreg  -mno-odd-spreg 

  1003. -mabs=<var>mode</var>  -mnan=<var>encoding</var> 

  1004. -mdsp  -mno-dsp  -mdspr2  -mno-dspr2 

  1005. -mmcu  -mmno-mcu 

  1006. -meva  -mno-eva 

  1007. -mvirt  -mno-virt 

  1008. -mxpa  -mno-xpa 

  1009. -mcrc  -mno-crc 

  1010. -mginv  -mno-ginv 

  1011. -mmicromips  -mno-micromips 

  1012. -mmsa  -mno-msa 

  1013. -mloongson-mmi  -mno-loongson-mmi 

  1014. -mloongson-ext  -mno-loongson-ext 

  1015. -mloongson-ext2  -mno-loongson-ext2 

  1016. -mfpu=<var>fpu-type</var> 

  1017. -msmartmips  -mno-smartmips 

  1018. -mpaired-single  -mno-paired-single  -mdmx  -mno-mdmx 

  1019. -mips3d  -mno-mips3d  -mmt  -mno-mt  -mllsc  -mno-llsc 

  1020. -mlong64  -mlong32  -msym32  -mno-sym32 

  1021. -G<var>num</var>  -mlocal-sdata  -mno-local-sdata 

  1022. -mextern-sdata  -mno-extern-sdata  -mgpopt  -mno-gopt 

  1023. -membedded-data  -mno-embedded-data 

  1024. -muninit-const-in-rodata  -mno-uninit-const-in-rodata 

  1025. -mcode-readable=<var>setting</var> 

  1026. -msplit-addresses  -mno-split-addresses 

  1027. -mexplicit-relocs  -mno-explicit-relocs 

  1028. -mcheck-zero-division  -mno-check-zero-division 

  1029. -mdivide-traps  -mdivide-breaks 

  1030. -mload-store-pairs  -mno-load-store-pairs 

  1031. -mmemcpy  -mno-memcpy  -mlong-calls  -mno-long-calls 

  1032. -mmad  -mno-mad  -mimadd  -mno-imadd  -mfused-madd  -mno-fused-madd  -nocpp 

  1033. -mfix-24k  -mno-fix-24k 

  1034. -mfix-r4000  -mno-fix-r4000  -mfix-r4400  -mno-fix-r4400 

  1035. -mfix-r5900  -mno-fix-r5900 

  1036. -mfix-r10000  -mno-fix-r10000  -mfix-rm7000  -mno-fix-rm7000 

  1037. -mfix-vr4120  -mno-fix-vr4120 

  1038. -mfix-vr4130  -mno-fix-vr4130  -mfix-sb1  -mno-fix-sb1 

  1039. -mflush-func=<var>func</var>  -mno-flush-func 

  1040. -mbranch-cost=<var>num</var>  -mbranch-likely  -mno-branch-likely 

  1041. -mcompact-branches=<var>policy</var> 

  1042. -mfp-exceptions  -mno-fp-exceptions 

  1043. -mvr4130-align  -mno-vr4130-align  -msynci  -mno-synci 

  1044. -mlxc1-sxc1  -mno-lxc1-sxc1  -mmadd4  -mno-madd4 

  1045. -mrelax-pic-calls  -mno-relax-pic-calls  -mmcount-ra-address 

  1046. -mframe-header-opt  -mno-frame-header-opt

  1047. </pre></div>

  1048. 

  1049. <p><em>MMIX Options</em>

  1050. </p><div class="smallexample">

  1051. <pre class="smallexample">-mlibfuncs  -mno-libfuncs  -mepsilon  -mno-epsilon  -mabi=gnu 

  1052. -mabi=mmixware  -mzero-extend  -mknuthdiv  -mtoplevel-symbols 

  1053. -melf  -mbranch-predict  -mno-branch-predict  -mbase-addresses 

  1054. -mno-base-addresses  -msingle-exit  -mno-single-exit

  1055. </pre></div>

  1056. 

  1057. <p><em>MN10300 Options</em>

  1058. </p><div class="smallexample">

  1059. <pre class="smallexample">-mmult-bug  -mno-mult-bug 

  1060. -mno-am33  -mam33  -mam33-2  -mam34 

  1061. -mtune=<var>cpu-type</var> 

  1062. -mreturn-pointer-on-d0 

  1063. -mno-crt0  -mrelax  -mliw  -msetlb

  1064. </pre></div>

  1065. 

  1066. <p><em>Moxie Options</em>

  1067. </p><div class="smallexample">

  1068. <pre class="smallexample">-meb  -mel  -mmul.x  -mno-crt0

  1069. </pre></div>

  1070. 

  1071. <p><em>MSP430 Options</em>

  1072. </p><div class="smallexample">

  1073. <pre class="smallexample">-msim  -masm-hex  -mmcu=  -mcpu=  -mlarge  -msmall  -mrelax 

  1074. -mwarn-mcu 

  1075. -mcode-region=  -mdata-region= 

  1076. -msilicon-errata=  -msilicon-errata-warn= 

  1077. -mhwmult=  -minrt  -mtiny-printf

  1078. </pre></div>

  1079. 

  1080. <p><em>NDS32 Options</em>

  1081. </p><div class="smallexample">

  1082. <pre class="smallexample">-mbig-endian  -mlittle-endian 

  1083. -mreduced-regs  -mfull-regs 

  1084. -mcmov  -mno-cmov 

  1085. -mext-perf  -mno-ext-perf 

  1086. -mext-perf2  -mno-ext-perf2 

  1087. -mext-string  -mno-ext-string 

  1088. -mv3push  -mno-v3push 

  1089. -m16bit  -mno-16bit 

  1090. -misr-vector-size=<var>num</var> 

  1091. -mcache-block-size=<var>num</var> 

  1092. -march=<var>arch</var> 

  1093. -mcmodel=<var>code-model</var> 

  1094. -mctor-dtor  -mrelax

  1095. </pre></div>

  1096. 

  1097. <p><em>Nios II Options</em>

  1098. </p><div class="smallexample">

  1099. <pre class="smallexample">-G <var>num</var>  -mgpopt=<var>option</var>  -mgpopt  -mno-gpopt 

  1100. -mgprel-sec=<var>regexp</var>  -mr0rel-sec=<var>regexp</var> 

  1101. -mel  -meb 

  1102. -mno-bypass-cache  -mbypass-cache 

  1103. -mno-cache-volatile  -mcache-volatile 

  1104. -mno-fast-sw-div  -mfast-sw-div 

  1105. -mhw-mul  -mno-hw-mul  -mhw-mulx  -mno-hw-mulx  -mno-hw-div  -mhw-div 

  1106. -mcustom-<var>insn</var>=<var>N</var>  -mno-custom-<var>insn</var> 

  1107. -mcustom-fpu-cfg=<var>name</var> 

  1108. -mhal  -msmallc  -msys-crt0=<var>name</var>  -msys-lib=<var>name</var> 

  1109. -march=<var>arch</var>  -mbmx  -mno-bmx  -mcdx  -mno-cdx

  1110. </pre></div>

  1111. 

  1112. <p><em>Nvidia PTX Options</em>

  1113. </p><div class="smallexample">

  1114. <pre class="smallexample">-m32  -m64  -mmainkernel  -moptimize

  1115. </pre></div>

  1116. 

  1117. <p><em>OpenRISC Options</em>

  1118. </p><div class="smallexample">

  1119. <pre class="smallexample">-mboard=<var>name</var>  -mnewlib  -mhard-mul  -mhard-div 

  1120. -msoft-mul  -msoft-div 

  1121. -msoft-float  -mhard-float  -mdouble-float -munordered-float 

  1122. -mcmov  -mror  -mrori  -msext  -msfimm  -mshftimm

  1123. </pre></div>

  1124. 

  1125. <p><em>PDP-11 Options</em>

  1126. </p><div class="smallexample">

  1127. <pre class="smallexample">-mfpu  -msoft-float  -mac0  -mno-ac0  -m40  -m45  -m10 

  1128. -mint32  -mno-int16  -mint16  -mno-int32 

  1129. -msplit  -munix-asm  -mdec-asm  -mgnu-asm  -mlra

  1130. </pre></div>

  1131. 

  1132. <p><em>picoChip Options</em>

  1133. </p><div class="smallexample">

  1134. <pre class="smallexample">-mae=<var>ae_type</var>  -mvliw-lookahead=<var>N</var> 

  1135. -msymbol-as-address  -mno-inefficient-warnings

  1136. </pre></div>

  1137. 

  1138. <p><em>PowerPC Options</em>

  1139. See RS/6000 and PowerPC Options.

  1140. </p>

  1141. <p><em>PRU Options</em>

  1142. </p><div class="smallexample">

  1143. <pre class="smallexample">-mmcu=<var>mcu</var>  -minrt  -mno-relax  -mloop 

  1144. -mabi=<var>variant</var> 

  1145. </pre></div>

  1146. 

  1147. <p><em>RISC-V Options</em>

  1148. </p><div class="smallexample">

  1149. <pre class="smallexample">-mbranch-cost=<var>N-instruction</var> 

  1150. -mplt  -mno-plt 

  1151. -mabi=<var>ABI-string</var> 

  1152. -mfdiv  -mno-fdiv 

  1153. -mdiv  -mno-div 

  1154. -march=<var>ISA-string</var> 

  1155. -mtune=<var>processor-string</var> 

  1156. -mpreferred-stack-boundary=<var>num</var> 

  1157. -msmall-data-limit=<var>N-bytes</var> 

  1158. -msave-restore  -mno-save-restore 

  1159. -mstrict-align  -mno-strict-align 

  1160. -mcmodel=medlow  -mcmodel=medany 

  1161. -mexplicit-relocs  -mno-explicit-relocs 

  1162. -mrelax  -mno-relax 

  1163. -mriscv-attribute  -mmo-riscv-attribute 

  1164. -malign-data=<var>type</var>

  1165. </pre></div>

  1166. 

  1167. <p><em>RL78 Options</em>

  1168. </p><div class="smallexample">

  1169. <pre class="smallexample">-msim  -mmul=none  -mmul=g13  -mmul=g14  -mallregs 

  1170. -mcpu=g10  -mcpu=g13  -mcpu=g14  -mg10  -mg13  -mg14 

  1171. -m64bit-doubles  -m32bit-doubles  -msave-mduc-in-interrupts

  1172. </pre></div>

  1173. 

  1174. <p><em>RS/6000 and PowerPC Options</em>

  1175. </p><div class="smallexample">

  1176. <pre class="smallexample">-mcpu=<var>cpu-type</var> 

  1177. -mtune=<var>cpu-type</var> 

  1178. -mcmodel=<var>code-model</var> 

  1179. -mpowerpc64 

  1180. -maltivec  -mno-altivec 

  1181. -mpowerpc-gpopt  -mno-powerpc-gpopt 

  1182. -mpowerpc-gfxopt  -mno-powerpc-gfxopt 

  1183. -mmfcrf  -mno-mfcrf  -mpopcntb  -mno-popcntb  -mpopcntd  -mno-popcntd 

  1184. -mfprnd  -mno-fprnd 

  1185. -mcmpb  -mno-cmpb  -mhard-dfp  -mno-hard-dfp 

  1186. -mfull-toc   -mminimal-toc  -mno-fp-in-toc  -mno-sum-in-toc 

  1187. -m64  -m32  -mxl-compat  -mno-xl-compat  -mpe 

  1188. -malign-power  -malign-natural 

  1189. -msoft-float  -mhard-float  -mmultiple  -mno-multiple 

  1190. -mupdate  -mno-update 

  1191. -mavoid-indexed-addresses  -mno-avoid-indexed-addresses 

  1192. -mfused-madd  -mno-fused-madd  -mbit-align  -mno-bit-align 

  1193. -mstrict-align  -mno-strict-align  -mrelocatable 

  1194. -mno-relocatable  -mrelocatable-lib  -mno-relocatable-lib 

  1195. -mtoc  -mno-toc  -mlittle  -mlittle-endian  -mbig  -mbig-endian 

  1196. -mdynamic-no-pic  -mswdiv  -msingle-pic-base 

  1197. -mprioritize-restricted-insns=<var>priority</var> 

  1198. -msched-costly-dep=<var>dependence_type</var> 

  1199. -minsert-sched-nops=<var>scheme</var> 

  1200. -mcall-aixdesc  -mcall-eabi  -mcall-freebsd  

  1201. -mcall-linux  -mcall-netbsd  -mcall-openbsd  

  1202. -mcall-sysv  -mcall-sysv-eabi  -mcall-sysv-noeabi 

  1203. -mtraceback=<var>traceback_type</var> 

  1204. -maix-struct-return  -msvr4-struct-return 

  1205. -mabi=<var>abi-type</var>  -msecure-plt  -mbss-plt 

  1206. -mlongcall  -mno-longcall  -mpltseq  -mno-pltseq  

  1207. -mblock-move-inline-limit=<var>num</var> 

  1208. -mblock-compare-inline-limit=<var>num</var> 

  1209. -mblock-compare-inline-loop-limit=<var>num</var> 

  1210. -mstring-compare-inline-limit=<var>num</var> 

  1211. -misel  -mno-isel 

  1212. -mvrsave  -mno-vrsave 

  1213. -mmulhw  -mno-mulhw 

  1214. -mdlmzb  -mno-dlmzb 

  1215. -mprototype  -mno-prototype 

  1216. -msim  -mmvme  -mads  -myellowknife  -memb  -msdata 

  1217. -msdata=<var>opt</var>  -mreadonly-in-sdata  -mvxworks  -G <var>num</var> 

  1218. -mrecip  -mrecip=<var>opt</var>  -mno-recip  -mrecip-precision 

  1219. -mno-recip-precision 

  1220. -mveclibabi=<var>type</var>  -mfriz  -mno-friz 

  1221. -mpointers-to-nested-functions  -mno-pointers-to-nested-functions 

  1222. -msave-toc-indirect  -mno-save-toc-indirect 

  1223. -mpower8-fusion  -mno-mpower8-fusion  -mpower8-vector  -mno-power8-vector 

  1224. -mcrypto  -mno-crypto  -mhtm  -mno-htm 

  1225. -mquad-memory  -mno-quad-memory 

  1226. -mquad-memory-atomic  -mno-quad-memory-atomic 

  1227. -mcompat-align-parm  -mno-compat-align-parm 

  1228. -mfloat128  -mno-float128  -mfloat128-hardware  -mno-float128-hardware 

  1229. -mgnu-attribute  -mno-gnu-attribute 

  1230. -mstack-protector-guard=<var>guard</var> -mstack-protector-guard-reg=<var>reg</var> 

  1231. -mstack-protector-guard-offset=<var>offset</var> -mprefixed -mno-prefixed 

  1232. -mpcrel -mno-pcrel -mmma -mno-mmma

  1233. </pre></div>

  1234. 

  1235. <p><em>RX Options</em>

  1236. </p><div class="smallexample">

  1237. <pre class="smallexample">-m64bit-doubles  -m32bit-doubles  -fpu  -nofpu

  1238. -mcpu=

  1239. -mbig-endian-data  -mlittle-endian-data 

  1240. -msmall-data 

  1241. -msim  -mno-sim

  1242. -mas100-syntax  -mno-as100-syntax

  1243. -mrelax

  1244. -mmax-constant-size=

  1245. -mint-register=

  1246. -mpid

  1247. -mallow-string-insns  -mno-allow-string-insns

  1248. -mjsr

  1249. -mno-warn-multiple-fast-interrupts

  1250. -msave-acc-in-interrupts

  1251. </pre></div>

  1252. 

  1253. <p><em>S/390 and zSeries Options</em>

  1254. </p><div class="smallexample">

  1255. <pre class="smallexample">-mtune=<var>cpu-type</var>  -march=<var>cpu-type</var> 

  1256. -mhard-float  -msoft-float  -mhard-dfp  -mno-hard-dfp 

  1257. -mlong-double-64  -mlong-double-128 

  1258. -mbackchain  -mno-backchain  -mpacked-stack  -mno-packed-stack 

  1259. -msmall-exec  -mno-small-exec  -mmvcle  -mno-mvcle 

  1260. -m64  -m31  -mdebug  -mno-debug  -mesa  -mzarch 

  1261. -mhtm  -mvx  -mzvector 

  1262. -mtpf-trace  -mno-tpf-trace  -mtpf-trace-skip  -mno-tpf-trace-skip 

  1263. -mfused-madd  -mno-fused-madd 

  1264. -mwarn-framesize  -mwarn-dynamicstack  -mstack-size  -mstack-guard 

  1265. -mhotpatch=<var>halfwords</var>,<var>halfwords</var>

  1266. </pre></div>

  1267. 

  1268. <p><em>Score Options</em>

  1269. </p><div class="smallexample">

  1270. <pre class="smallexample">-meb  -mel 

  1271. -mnhwloop 

  1272. -muls 

  1273. -mmac 

  1274. -mscore5  -mscore5u  -mscore7  -mscore7d

  1275. </pre></div>

  1276. 

  1277. <p><em>SH Options</em>

  1278. </p><div class="smallexample">

  1279. <pre class="smallexample">-m1  -m2  -m2e 

  1280. -m2a-nofpu  -m2a-single-only  -m2a-single  -m2a 

  1281. -m3  -m3e 

  1282. -m4-nofpu  -m4-single-only  -m4-single  -m4 

  1283. -m4a-nofpu  -m4a-single-only  -m4a-single  -m4a  -m4al 

  1284. -mb  -ml  -mdalign  -mrelax 

  1285. -mbigtable  -mfmovd  -mrenesas  -mno-renesas  -mnomacsave 

  1286. -mieee  -mno-ieee  -mbitops  -misize  -minline-ic_invalidate  -mpadstruct 

  1287. -mprefergot  -musermode  -multcost=<var>number</var>  -mdiv=<var>strategy</var> 

  1288. -mdivsi3_libfunc=<var>name</var>  -mfixed-range=<var>register-range</var> 

  1289. -maccumulate-outgoing-args 

  1290. -matomic-model=<var>atomic-model</var> 

  1291. -mbranch-cost=<var>num</var>  -mzdcbranch  -mno-zdcbranch 

  1292. -mcbranch-force-delay-slot 

  1293. -mfused-madd  -mno-fused-madd  -mfsca  -mno-fsca  -mfsrra  -mno-fsrra 

  1294. -mpretend-cmove  -mtas

  1295. </pre></div>

  1296. 

  1297. <p><em>Solaris 2 Options</em>

  1298. </p><div class="smallexample">

  1299. <pre class="smallexample">-mclear-hwcap  -mno-clear-hwcap  -mimpure-text  -mno-impure-text 

  1300. -pthreads

  1301. </pre></div>

  1302. 

  1303. <p><em>SPARC Options</em>

  1304. </p><div class="smallexample">

  1305. <pre class="smallexample">-mcpu=<var>cpu-type</var> 

  1306. -mtune=<var>cpu-type</var> 

  1307. -mcmodel=<var>code-model</var> 

  1308. -mmemory-model=<var>mem-model</var> 

  1309. -m32  -m64  -mapp-regs  -mno-app-regs 

  1310. -mfaster-structs  -mno-faster-structs  -mflat  -mno-flat 

  1311. -mfpu  -mno-fpu  -mhard-float  -msoft-float 

  1312. -mhard-quad-float  -msoft-quad-float 

  1313. -mstack-bias  -mno-stack-bias 

  1314. -mstd-struct-return  -mno-std-struct-return 

  1315. -munaligned-doubles  -mno-unaligned-doubles 

  1316. -muser-mode  -mno-user-mode 

  1317. -mv8plus  -mno-v8plus  -mvis  -mno-vis 

  1318. -mvis2  -mno-vis2  -mvis3  -mno-vis3 

  1319. -mvis4  -mno-vis4  -mvis4b  -mno-vis4b 

  1320. -mcbcond  -mno-cbcond  -mfmaf  -mno-fmaf  -mfsmuld  -mno-fsmuld  

  1321. -mpopc  -mno-popc  -msubxc  -mno-subxc 

  1322. -mfix-at697f  -mfix-ut699  -mfix-ut700  -mfix-gr712rc 

  1323. -mlra  -mno-lra

  1324. </pre></div>

  1325. 

  1326. <p><em>System V Options</em>

  1327. </p><div class="smallexample">

  1328. <pre class="smallexample">-Qy  -Qn  -YP,<var>paths</var>  -Ym,<var>dir</var>

  1329. </pre></div>

  1330. 

  1331. <p><em>TILE-Gx Options</em>

  1332. </p><div class="smallexample">

  1333. <pre class="smallexample">-mcpu=CPU  -m32  -m64  -mbig-endian  -mlittle-endian 

  1334. -mcmodel=<var>code-model</var>

  1335. </pre></div>

  1336. 

  1337. <p><em>TILEPro Options</em>

  1338. </p><div class="smallexample">

  1339. <pre class="smallexample">-mcpu=<var>cpu</var>  -m32

  1340. </pre></div>

  1341. 

  1342. <p><em>V850 Options</em>

  1343. </p><div class="smallexample">

  1344. <pre class="smallexample">-mlong-calls  -mno-long-calls  -mep  -mno-ep 

  1345. -mprolog-function  -mno-prolog-function  -mspace 

  1346. -mtda=<var>n</var>  -msda=<var>n</var>  -mzda=<var>n</var> 

  1347. -mapp-regs  -mno-app-regs 

  1348. -mdisable-callt  -mno-disable-callt 

  1349. -mv850e2v3  -mv850e2  -mv850e1  -mv850es 

  1350. -mv850e  -mv850  -mv850e3v5 

  1351. -mloop 

  1352. -mrelax 

  1353. -mlong-jumps 

  1354. -msoft-float 

  1355. -mhard-float 

  1356. -mgcc-abi 

  1357. -mrh850-abi 

  1358. -mbig-switch

  1359. </pre></div>

  1360. 

  1361. <p><em>VAX Options</em>

  1362. </p><div class="smallexample">

  1363. <pre class="smallexample">-mg  -mgnu  -munix

  1364. </pre></div>

  1365. 

  1366. <p><em>Visium Options</em>

  1367. </p><div class="smallexample">

  1368. <pre class="smallexample">-mdebug  -msim  -mfpu  -mno-fpu  -mhard-float  -msoft-float 

  1369. -mcpu=<var>cpu-type</var>  -mtune=<var>cpu-type</var>  -msv-mode  -muser-mode

  1370. </pre></div>

  1371. 

  1372. <p><em>VMS Options</em>

  1373. </p><div class="smallexample">

  1374. <pre class="smallexample">-mvms-return-codes  -mdebug-main=<var>prefix</var>  -mmalloc64 

  1375. -mpointer-size=<var>size</var>

  1376. </pre></div>

  1377. 

  1378. <p><em>VxWorks Options</em>

  1379. </p><div class="smallexample">

  1380. <pre class="smallexample">-mrtp  -non-static  -Bstatic  -Bdynamic 

  1381. -Xbind-lazy  -Xbind-now

  1382. </pre></div>

  1383. 

  1384. <p><em>x86 Options</em>

  1385. </p><div class="smallexample">

  1386. <pre class="smallexample">-mtune=<var>cpu-type</var>  -march=<var>cpu-type</var> 

  1387. -mtune-ctrl=<var>feature-list</var>  -mdump-tune-features  -mno-default 

  1388. -mfpmath=<var>unit</var> 

  1389. -masm=<var>dialect</var>  -mno-fancy-math-387 

  1390. -mno-fp-ret-in-387  -m80387  -mhard-float  -msoft-float 

  1391. -mno-wide-multiply  -mrtd  -malign-double 

  1392. -mpreferred-stack-boundary=<var>num</var> 

  1393. -mincoming-stack-boundary=<var>num</var> 

  1394. -mcld  -mcx16  -msahf  -mmovbe  -mcrc32 

  1395. -mrecip  -mrecip=<var>opt</var> 

  1396. -mvzeroupper  -mprefer-avx128  -mprefer-vector-width=<var>opt</var> 

  1397. -mmmx  -msse  -msse2  -msse3  -mssse3  -msse4.1  -msse4.2  -msse4  -mavx 

  1398. -mavx2  -mavx512f  -mavx512pf  -mavx512er  -mavx512cd  -mavx512vl 

  1399. -mavx512bw  -mavx512dq  -mavx512ifma  -mavx512vbmi  -msha  -maes 

  1400. -mpclmul  -mfsgsbase  -mrdrnd  -mf16c  -mfma  -mpconfig  -mwbnoinvd  

  1401. -mptwrite  -mprefetchwt1  -mclflushopt  -mclwb  -mxsavec  -mxsaves 

  1402. -msse4a  -m3dnow  -m3dnowa  -mpopcnt  -mabm  -mbmi  -mtbm  -mfma4  -mxop 

  1403. -madx  -mlzcnt  -mbmi2  -mfxsr  -mxsave  -mxsaveopt  -mrtm  -mhle  -mlwp 

  1404. -mmwaitx  -mclzero  -mpku  -mthreads  -mgfni  -mvaes  -mwaitpkg 

  1405. -mshstk -mmanual-endbr -mforce-indirect-call  -mavx512vbmi2 -mavx512bf16 -menqcmd 

  1406. -mvpclmulqdq  -mavx512bitalg  -mmovdiri  -mmovdir64b  -mavx512vpopcntdq 

  1407. -mavx5124fmaps  -mavx512vnni  -mavx5124vnniw  -mprfchw  -mrdpid 

  1408. -mrdseed  -msgx -mavx512vp2intersect

  1409. -mcldemote  -mms-bitfields  -mno-align-stringops  -minline-all-stringops 

  1410. -minline-stringops-dynamically  -mstringop-strategy=<var>alg</var> 

  1411. -mmemcpy-strategy=<var>strategy</var>  -mmemset-strategy=<var>strategy</var> 

  1412. -mpush-args  -maccumulate-outgoing-args  -m128bit-long-double 

  1413. -m96bit-long-double  -mlong-double-64  -mlong-double-80  -mlong-double-128 

  1414. -mregparm=<var>num</var>  -msseregparm 

  1415. -mveclibabi=<var>type</var>  -mvect8-ret-in-mem 

  1416. -mpc32  -mpc64  -mpc80  -mstackrealign 

  1417. -momit-leaf-frame-pointer  -mno-red-zone  -mno-tls-direct-seg-refs 

  1418. -mcmodel=<var>code-model</var>  -mabi=<var>name</var>  -maddress-mode=<var>mode</var> 

  1419. -m32  -m64  -mx32  -m16  -miamcu  -mlarge-data-threshold=<var>num</var> 

  1420. -msse2avx  -mfentry  -mrecord-mcount  -mnop-mcount  -m8bit-idiv 

  1421. -minstrument-return=<var>type</var> -mfentry-name=<var>name</var> -mfentry-section=<var>name</var> 

  1422. -mavx256-split-unaligned-load  -mavx256-split-unaligned-store 

  1423. -malign-data=<var>type</var>  -mstack-protector-guard=<var>guard</var> 

  1424. -mstack-protector-guard-reg=<var>reg</var> 

  1425. -mstack-protector-guard-offset=<var>offset</var> 

  1426. -mstack-protector-guard-symbol=<var>symbol</var> 

  1427. -mgeneral-regs-only  -mcall-ms2sysv-xlogues 

  1428. -mindirect-branch=<var>choice</var>  -mfunction-return=<var>choice</var> 

  1429. -mindirect-branch-register

  1430. </pre></div>

  1431. 

  1432. <p><em>x86 Windows Options</em>

  1433. </p><div class="smallexample">

  1434. <pre class="smallexample">-mconsole  -mcygwin  -mno-cygwin  -mdll 

  1435. -mnop-fun-dllimport  -mthread 

  1436. -municode  -mwin32  -mwindows  -fno-set-stack-executable

  1437. </pre></div>

  1438. 

  1439. <p><em>Xstormy16 Options</em>

  1440. </p><div class="smallexample">

  1441. <pre class="smallexample">-msim

  1442. </pre></div>

  1443. 

  1444. <p><em>Xtensa Options</em>

  1445. </p><div class="smallexample">

  1446. <pre class="smallexample">-mconst16  -mno-const16 

  1447. -mfused-madd  -mno-fused-madd 

  1448. -mforce-no-pic 

  1449. -mserialize-volatile  -mno-serialize-volatile 

  1450. -mtext-section-literals  -mno-text-section-literals 

  1451. -mauto-litpools  -mno-auto-litpools 

  1452. -mtarget-align  -mno-target-align 

  1453. -mlongcalls  -mno-longcalls

  1454. </pre></div>

  1455. 

  1456. <p><em>zSeries Options</em>

  1457. See S/390 and zSeries Options.

  1458. </p></dd>

  1459. </dl>

  1460. 

  1461. 

  1462. <hr>

  1463. <div class="header">

  1464. <p>

  1465. Next: <a href="Overall-Options.html#Overall-Options" accesskey="n" rel="next">Overall Options</a>, Up: <a href="Invoking-GCC.html#Invoking-GCC" accesskey="u" rel="up">Invoking GCC</a> &nbsp; [<a href="index.html#SEC_Contents" title="Table of contents" rel="contents">Contents</a>][<a href="Option-Index.html#Option-Index" title="Index" rel="index">Index</a>]</p>

  1466. </div>

  1467. 

  1468. 

  1469. 

  1470. </body>

  1471. </html>