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| <title>Using the GNU Compiler Collection (GCC): Option Summary</title> |
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| <a name="Option-Summary"></a> |
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| <p> |
| 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> [<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> |
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| <hr> |
| <a name="Option-Summary-1"></a> |
| <h3 class="section">3.1 Option Summary</h3> |
| |
| <p>Here is a summary of all the options, grouped by type. Explanations are |
| in the following sections. |
| </p> |
| <dl compact="compact"> |
| <dt><em>Overall Options</em></dt> |
| <dd><p>See <a href="Overall-Options.html#Overall-Options">Options Controlling the Kind of Output</a>. |
| </p><div class="smallexample"> |
| <pre class="smallexample">-c -S -E -o <var>file</var> -no-canonical-prefixes |
| -pipe -pass-exit-codes |
| -x <var>language</var> -v -### --help<span class="roman">[</span>=<var>class</var><span class="roman">[</span>,…<span class="roman">]]</span> --target-help |
| --version -wrapper @<var>file</var> -fplugin=<var>file</var> -fplugin-arg-<var>name</var>=<var>arg</var> |
| -fdump-ada-spec<span class="roman">[</span>-slim<span class="roman">]</span> -fada-spec-parent=<var>unit</var> -fdump-go-spec=<var>file</var> |
| </pre></div> |
| |
| </dd> |
| <dt><em>C Language Options</em></dt> |
| <dd><p>See <a href="C-Dialect-Options.html#C-Dialect-Options">Options Controlling C Dialect</a>. |
| </p><div class="smallexample"> |
| <pre class="smallexample">-ansi -std=<var>standard</var> -fgnu89-inline |
| -aux-info <var>filename</var> -fallow-parameterless-variadic-functions |
| -fno-asm -fno-builtin -fno-builtin-<var>function</var> |
| -fhosted -ffreestanding -fopenmp -fopenmp-simd -fms-extensions |
| -fplan9-extensions -trigraphs -traditional -traditional-cpp |
| -fallow-single-precision -fcond-mismatch -flax-vector-conversions |
| -fsigned-bitfields -fsigned-char |
| -funsigned-bitfields -funsigned-char |
| </pre></div> |
| |
| </dd> |
| <dt><em>C++ Language Options</em></dt> |
| <dd><p>See <a href="C_002b_002b-Dialect-Options.html#C_002b_002b-Dialect-Options">Options Controlling C++ Dialect</a>. |
| </p><div class="smallexample"> |
| <pre class="smallexample">-fabi-version=<var>n</var> -fno-access-control -fcheck-new |
| -fconstexpr-depth=<var>n</var> -ffriend-injection |
| -fno-elide-constructors |
| -fno-enforce-eh-specs |
| -ffor-scope -fno-for-scope -fno-gnu-keywords |
| -fno-implicit-templates |
| -fno-implicit-inline-templates |
| -fno-implement-inlines -fms-extensions |
| -fno-nonansi-builtins -fnothrow-opt -fno-operator-names |
| -fno-optional-diags -fpermissive |
| -fno-pretty-templates |
| -frepo -fno-rtti -fstats -ftemplate-backtrace-limit=<var>n</var> |
| -ftemplate-depth=<var>n</var> |
| -fno-threadsafe-statics -fuse-cxa-atexit -fno-weak -nostdinc++ |
| -fvisibility-inlines-hidden |
| -fvtable-verify=<var>std|preinit|none</var> |
| -fvtv-counts -fvtv-debug |
| -fvisibility-ms-compat |
| -fext-numeric-literals |
| -Wabi -Wconversion-null -Wctor-dtor-privacy |
| -Wdelete-non-virtual-dtor -Wliteral-suffix -Wnarrowing |
| -Wnoexcept -Wnon-virtual-dtor -Wreorder |
| -Weffc++ -Wstrict-null-sentinel |
| -Wno-non-template-friend -Wold-style-cast |
| -Woverloaded-virtual -Wno-pmf-conversions |
| -Wsign-promo |
| </pre></div> |
| |
| </dd> |
| <dt><em>Objective-C and Objective-C++ Language Options</em></dt> |
| <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 |
| Objective-C and Objective-C++ Dialects</a>. |
| </p><div class="smallexample"> |
| <pre class="smallexample">-fconstant-string-class=<var>class-name</var> |
| -fgnu-runtime -fnext-runtime |
| -fno-nil-receivers |
| -fobjc-abi-version=<var>n</var> |
| -fobjc-call-cxx-cdtors |
| -fobjc-direct-dispatch |
| -fobjc-exceptions |
| -fobjc-gc |
| -fobjc-nilcheck |
| -fobjc-std=objc1 |
| -freplace-objc-classes |
| -fzero-link |
| -gen-decls |
| -Wassign-intercept |
| -Wno-protocol -Wselector |
| -Wstrict-selector-match |
| -Wundeclared-selector |
| </pre></div> |
| |
| </dd> |
| <dt><em>Language Independent Options</em></dt> |
| <dd><p>See <a href="Language-Independent-Options.html#Language-Independent-Options">Options to Control Diagnostic Messages Formatting</a>. |
| </p><div class="smallexample"> |
| <pre class="smallexample">-fmessage-length=<var>n</var> |
| -fdiagnostics-show-location=<span class="roman">[</span>once<span class="roman">|</span>every-line<span class="roman">]</span> |
| -fdiagnostics-color=<span class="roman">[</span>auto<span class="roman">|</span>never<span class="roman">|</span>always<span class="roman">]</span> |
| -fno-diagnostics-show-option -fno-diagnostics-show-caret |
| </pre></div> |
| |
| </dd> |
| <dt><em>Warning Options</em></dt> |
| <dd><p>See <a href="Warning-Options.html#Warning-Options">Options to Request or Suppress Warnings</a>. |
| </p><div class="smallexample"> |
| <pre class="smallexample">-fsyntax-only -fmax-errors=<var>n</var> -Wpedantic |
| -pedantic-errors |
| -w -Wextra -Wall -Waddress -Waggregate-return |
| -Waggressive-loop-optimizations -Warray-bounds |
| -Wno-attributes -Wno-builtin-macro-redefined |
| -Wc++-compat -Wc++11-compat -Wcast-align -Wcast-qual |
| -Wchar-subscripts -Wclobbered -Wcomment -Wconditionally-supported |
| -Wconversion -Wcoverage-mismatch -Wdate-time -Wdelete-incomplete -Wno-cpp |
| -Wno-deprecated -Wno-deprecated-declarations -Wdisabled-optimization |
| -Wno-div-by-zero -Wdouble-promotion -Wempty-body -Wenum-compare |
| -Wno-endif-labels -Werror -Werror=* |
| -Wfatal-errors -Wfloat-equal -Wformat -Wformat=2 |
| -Wno-format-contains-nul -Wno-format-extra-args -Wformat-nonliteral |
| -Wformat-security -Wformat-y2k |
| -Wframe-larger-than=<var>len</var> -Wno-free-nonheap-object -Wjump-misses-init |
| -Wignored-qualifiers |
| -Wimplicit -Wimplicit-function-declaration -Wimplicit-int |
| -Winit-self -Winline -Wmaybe-uninitialized |
| -Wno-int-to-pointer-cast -Wno-invalid-offsetof |
| -Winvalid-pch -Wlarger-than=<var>len</var> -Wunsafe-loop-optimizations |
| -Wlogical-op -Wlong-long |
| -Wmain -Wmaybe-uninitialized -Wmissing-braces -Wmissing-field-initializers |
| -Wmissing-include-dirs |
| -Wno-multichar -Wnonnull -Wno-overflow -Wopenmp-simd |
| -Woverlength-strings -Wpacked -Wpacked-bitfield-compat -Wpadded |
| -Wparentheses -Wpedantic-ms-format -Wno-pedantic-ms-format |
| -Wpointer-arith -Wno-pointer-to-int-cast |
| -Wredundant-decls -Wno-return-local-addr |
| -Wreturn-type -Wsequence-point -Wshadow |
| -Wsign-compare -Wsign-conversion -Wfloat-conversion |
| -Wsizeof-pointer-memaccess |
| -Wstack-protector -Wstack-usage=<var>len</var> -Wstrict-aliasing |
| -Wstrict-aliasing=n -Wstrict-overflow -Wstrict-overflow=<var>n</var> |
| -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> |
| -Wmissing-format-attribute |
| -Wswitch -Wswitch-default -Wswitch-enum -Wsync-nand |
| -Wsystem-headers -Wtrampolines -Wtrigraphs -Wtype-limits -Wundef |
| -Wuninitialized -Wunknown-pragmas -Wno-pragmas |
| -Wunsuffixed-float-constants -Wunused -Wunused-function |
| -Wunused-label -Wunused-local-typedefs -Wunused-parameter |
| -Wno-unused-result -Wunused-value -Wunused-variable |
| -Wunused-but-set-parameter -Wunused-but-set-variable |
| -Wuseless-cast -Wvariadic-macros -Wvector-operation-performance |
| -Wvla -Wvolatile-register-var -Wwrite-strings -Wzero-as-null-pointer-constant |
| </pre></div> |
| |
| </dd> |
| <dt><em>C and Objective-C-only Warning Options</em></dt> |
| <dd><div class="smallexample"> |
| <pre class="smallexample">-Wbad-function-cast -Wmissing-declarations |
| -Wmissing-parameter-type -Wmissing-prototypes -Wnested-externs |
| -Wold-style-declaration -Wold-style-definition |
| -Wstrict-prototypes -Wtraditional -Wtraditional-conversion |
| -Wdeclaration-after-statement -Wpointer-sign |
| </pre></div> |
| |
| </dd> |
| <dt><em>Debugging Options</em></dt> |
| <dd><p>See <a href="Debugging-Options.html#Debugging-Options">Options for Debugging Your Program or GCC</a>. |
| </p><div class="smallexample"> |
| <pre class="smallexample">-d<var>letters</var> -dumpspecs -dumpmachine -dumpversion |
| -fsanitize=<var>style</var> |
| -fdbg-cnt-list -fdbg-cnt=<var>counter-value-list</var> |
| -fdisable-ipa-<var>pass_name</var> |
| -fdisable-rtl-<var>pass_name</var> |
| -fdisable-rtl-<var>pass-name</var>=<var>range-list</var> |
| -fdisable-tree-<var>pass_name</var> |
| -fdisable-tree-<var>pass-name</var>=<var>range-list</var> |
| -fdump-noaddr -fdump-unnumbered -fdump-unnumbered-links |
| -fdump-translation-unit<span class="roman">[</span>-<var>n</var><span class="roman">]</span> |
| -fdump-class-hierarchy<span class="roman">[</span>-<var>n</var><span class="roman">]</span> |
| -fdump-ipa-all -fdump-ipa-cgraph -fdump-ipa-inline |
| -fdump-passes |
| -fdump-statistics |
| -fdump-tree-all |
| -fdump-tree-original<span class="roman">[</span>-<var>n</var><span class="roman">]</span> |
| -fdump-tree-optimized<span class="roman">[</span>-<var>n</var><span class="roman">]</span> |
| -fdump-tree-cfg -fdump-tree-alias |
| -fdump-tree-ch |
| -fdump-tree-ssa<span class="roman">[</span>-<var>n</var><span class="roman">]</span> -fdump-tree-pre<span class="roman">[</span>-<var>n</var><span class="roman">]</span> |
| -fdump-tree-ccp<span class="roman">[</span>-<var>n</var><span class="roman">]</span> -fdump-tree-dce<span class="roman">[</span>-<var>n</var><span class="roman">]</span> |
| -fdump-tree-gimple<span class="roman">[</span>-raw<span class="roman">]</span> |
| -fdump-tree-dom<span class="roman">[</span>-<var>n</var><span class="roman">]</span> |
| -fdump-tree-dse<span class="roman">[</span>-<var>n</var><span class="roman">]</span> |
| -fdump-tree-phiprop<span class="roman">[</span>-<var>n</var><span class="roman">]</span> |
| -fdump-tree-phiopt<span class="roman">[</span>-<var>n</var><span class="roman">]</span> |
| -fdump-tree-forwprop<span class="roman">[</span>-<var>n</var><span class="roman">]</span> |
| -fdump-tree-copyrename<span class="roman">[</span>-<var>n</var><span class="roman">]</span> |
| -fdump-tree-nrv -fdump-tree-vect |
| -fdump-tree-sink |
| -fdump-tree-sra<span class="roman">[</span>-<var>n</var><span class="roman">]</span> |
| -fdump-tree-forwprop<span class="roman">[</span>-<var>n</var><span class="roman">]</span> |
| -fdump-tree-fre<span class="roman">[</span>-<var>n</var><span class="roman">]</span> |
| -fdump-tree-vtable-verify |
| -fdump-tree-vrp<span class="roman">[</span>-<var>n</var><span class="roman">]</span> |
| -fdump-tree-storeccp<span class="roman">[</span>-<var>n</var><span class="roman">]</span> |
| -fdump-final-insns=<var>file</var> |
| -fcompare-debug<span class="roman">[</span>=<var>opts</var><span class="roman">]</span> -fcompare-debug-second |
| -feliminate-dwarf2-dups -fno-eliminate-unused-debug-types |
| -feliminate-unused-debug-symbols -femit-class-debug-always |
| -fenable-<var>kind</var>-<var>pass</var> |
| -fenable-<var>kind</var>-<var>pass</var>=<var>range-list</var> |
| -fdebug-types-section -fmem-report-wpa |
| -fmem-report -fpre-ipa-mem-report -fpost-ipa-mem-report -fprofile-arcs |
| -fopt-info |
| -fopt-info-<var>options</var><span class="roman">[</span>=<var>file</var><span class="roman">]</span> |
| -frandom-seed=<var>string</var> -fsched-verbose=<var>n</var> |
| -fsel-sched-verbose -fsel-sched-dump-cfg -fsel-sched-pipelining-verbose |
| -fstack-usage -ftest-coverage -ftime-report -fvar-tracking |
| -fvar-tracking-assignments -fvar-tracking-assignments-toggle |
| -g -g<var>level</var> -gtoggle -gcoff -gdwarf-<var>version</var> |
| -ggdb -grecord-gcc-switches -gno-record-gcc-switches |
| -gstabs -gstabs+ -gstrict-dwarf -gno-strict-dwarf |
| -gvms -gxcoff -gxcoff+ |
| -fno-merge-debug-strings -fno-dwarf2-cfi-asm |
| -fdebug-prefix-map=<var>old</var>=<var>new</var> |
| -femit-struct-debug-baseonly -femit-struct-debug-reduced |
| -femit-struct-debug-detailed<span class="roman">[</span>=<var>spec-list</var><span class="roman">]</span> |
| -p -pg -print-file-name=<var>library</var> -print-libgcc-file-name |
| -print-multi-directory -print-multi-lib -print-multi-os-directory |
| -print-prog-name=<var>program</var> -print-search-dirs -Q |
| -print-sysroot -print-sysroot-headers-suffix |
| -save-temps -save-temps=cwd -save-temps=obj -time<span class="roman">[</span>=<var>file</var><span class="roman">]</span> |
| </pre></div> |
| |
| </dd> |
| <dt><em>Optimization Options</em></dt> |
| <dd><p>See <a href="Optimize-Options.html#Optimize-Options">Options that Control Optimization</a>. |
| </p><div class="smallexample"> |
| <pre class="smallexample">-faggressive-loop-optimizations -falign-functions[=<var>n</var>] |
| -falign-jumps[=<var>n</var>] |
| -falign-labels[=<var>n</var>] -falign-loops[=<var>n</var>] |
| -fassociative-math -fauto-inc-dec -fbranch-probabilities |
| -fbranch-target-load-optimize -fbranch-target-load-optimize2 |
| -fbtr-bb-exclusive -fcaller-saves |
| -fcheck-data-deps -fcombine-stack-adjustments -fconserve-stack |
| -fcompare-elim -fcprop-registers -fcrossjumping |
| -fcse-follow-jumps -fcse-skip-blocks -fcx-fortran-rules |
| -fcx-limited-range |
| -fdata-sections -fdce -fdelayed-branch |
| -fdelete-null-pointer-checks -fdevirtualize -fdevirtualize-speculatively -fdse |
| -fearly-inlining -fipa-sra -fexpensive-optimizations -ffat-lto-objects |
| -ffast-math -ffinite-math-only -ffloat-store -fexcess-precision=<var>style</var> |
| -fforward-propagate -ffp-contract=<var>style</var> -ffunction-sections |
| -fgcse -fgcse-after-reload -fgcse-las -fgcse-lm -fgraphite-identity |
| -fgcse-sm -fhoist-adjacent-loads -fif-conversion |
| -fif-conversion2 -findirect-inlining |
| -finline-functions -finline-functions-called-once -finline-limit=<var>n</var> |
| -finline-small-functions -fipa-cp -fipa-cp-clone |
| -fipa-pta -fipa-profile -fipa-pure-const -fipa-reference |
| -fira-algorithm=<var>algorithm</var> |
| -fira-region=<var>region</var> -fira-hoist-pressure |
| -fira-loop-pressure -fno-ira-share-save-slots |
| -fno-ira-share-spill-slots -fira-verbose=<var>n</var> |
| -fisolate-erroneous-paths-dereference -fisolate-erroneous-paths-attribute |
| -fivopts -fkeep-inline-functions -fkeep-static-consts -flive-range-shrinkage |
| -floop-block -floop-interchange -floop-strip-mine -floop-nest-optimize |
| -floop-parallelize-all -flto -flto-compression-level |
| -flto-partition=<var>alg</var> -flto-report -flto-report-wpa -fmerge-all-constants |
| -fmerge-constants -fmodulo-sched -fmodulo-sched-allow-regmoves |
| -fmove-loop-invariants -fno-branch-count-reg |
| -fno-defer-pop -fno-function-cse -fno-guess-branch-probability |
| -fno-inline -fno-math-errno -fno-peephole -fno-peephole2 |
| -fno-sched-interblock -fno-sched-spec -fno-signed-zeros |
| -fno-toplevel-reorder -fno-trapping-math -fno-zero-initialized-in-bss |
| -fomit-frame-pointer -foptimize-sibling-calls |
| -fpartial-inlining -fpeel-loops -fpredictive-commoning |
| -fprefetch-loop-arrays -fprofile-report |
| -fprofile-correction -fprofile-dir=<var>path</var> -fprofile-generate |
| -fprofile-generate=<var>path</var> |
| -fprofile-use -fprofile-use=<var>path</var> -fprofile-values -fprofile-reorder-functions |
| -freciprocal-math -free -frename-registers -freorder-blocks |
| -freorder-blocks-and-partition -freorder-functions |
| -frerun-cse-after-loop -freschedule-modulo-scheduled-loops |
| -frounding-math -fsched2-use-superblocks -fsched-pressure |
| -fsched-spec-load -fsched-spec-load-dangerous |
| -fsched-stalled-insns-dep[=<var>n</var>] -fsched-stalled-insns[=<var>n</var>] |
| -fsched-group-heuristic -fsched-critical-path-heuristic |
| -fsched-spec-insn-heuristic -fsched-rank-heuristic |
| -fsched-last-insn-heuristic -fsched-dep-count-heuristic |
| -fschedule-insns -fschedule-insns2 -fsection-anchors |
| -fselective-scheduling -fselective-scheduling2 |
| -fsel-sched-pipelining -fsel-sched-pipelining-outer-loops |
| -fshrink-wrap -fsignaling-nans -fsingle-precision-constant |
| -fsplit-ivs-in-unroller -fsplit-wide-types -fstack-protector |
| -fstack-protector-all -fstack-protector-strong -fstrict-aliasing |
| -fstrict-overflow -fthread-jumps -ftracer -ftree-bit-ccp |
| -ftree-builtin-call-dce -ftree-ccp -ftree-ch |
| -ftree-coalesce-inline-vars -ftree-coalesce-vars -ftree-copy-prop |
| -ftree-copyrename -ftree-dce -ftree-dominator-opts -ftree-dse |
| -ftree-forwprop -ftree-fre -ftree-loop-if-convert |
| -ftree-loop-if-convert-stores -ftree-loop-im |
| -ftree-phiprop -ftree-loop-distribution -ftree-loop-distribute-patterns |
| -ftree-loop-ivcanon -ftree-loop-linear -ftree-loop-optimize |
| -ftree-loop-vectorize |
| -ftree-parallelize-loops=<var>n</var> -ftree-pre -ftree-partial-pre -ftree-pta |
| -ftree-reassoc -ftree-sink -ftree-slsr -ftree-sra |
| -ftree-switch-conversion -ftree-tail-merge -ftree-ter |
| -ftree-vectorize -ftree-vrp |
| -funit-at-a-time -funroll-all-loops -funroll-loops |
| -funsafe-loop-optimizations -funsafe-math-optimizations -funswitch-loops |
| -fvariable-expansion-in-unroller -fvect-cost-model -fvpt -fweb |
| -fwhole-program -fwpa -fuse-ld=<var>linker</var> -fuse-linker-plugin |
| --param <var>name</var>=<var>value</var> |
| -O -O0 -O1 -O2 -O3 -Os -Ofast -Og |
| </pre></div> |
| |
| </dd> |
| <dt><em>Preprocessor Options</em></dt> |
| <dd><p>See <a href="Preprocessor-Options.html#Preprocessor-Options">Options Controlling the Preprocessor</a>. |
| </p><div class="smallexample"> |
| <pre class="smallexample">-A<var>question</var>=<var>answer</var> |
| -A-<var>question</var><span class="roman">[</span>=<var>answer</var><span class="roman">]</span> |
| -C -dD -dI -dM -dN |
| -D<var>macro</var><span class="roman">[</span>=<var>defn</var><span class="roman">]</span> -E -H |
| -idirafter <var>dir</var> |
| -include <var>file</var> -imacros <var>file</var> |
| -iprefix <var>file</var> -iwithprefix <var>dir</var> |
| -iwithprefixbefore <var>dir</var> -isystem <var>dir</var> |
| -imultilib <var>dir</var> -isysroot <var>dir</var> |
| -M -MM -MF -MG -MP -MQ -MT -nostdinc |
| -P -fdebug-cpp -ftrack-macro-expansion -fworking-directory |
| -remap -trigraphs -undef -U<var>macro</var> |
| -Wp,<var>option</var> -Xpreprocessor <var>option</var> -no-integrated-cpp |
| </pre></div> |
| |
| </dd> |
| <dt><em>Assembler Option</em></dt> |
| <dd><p>See <a href="Assembler-Options.html#Assembler-Options">Passing Options to the Assembler</a>. |
| </p><div class="smallexample"> |
| <pre class="smallexample">-Wa,<var>option</var> -Xassembler <var>option</var> |
| </pre></div> |
| |
| </dd> |
| <dt><em>Linker Options</em></dt> |
| <dd><p>See <a href="Link-Options.html#Link-Options">Options for Linking</a>. |
| </p><div class="smallexample"> |
| <pre class="smallexample"><var>object-file-name</var> -l<var>library</var> |
| -nostartfiles -nodefaultlibs -nostdlib -pie -rdynamic |
| -s -static -static-libgcc -static-libstdc++ |
| -static-libasan -static-libtsan -static-liblsan -static-libubsan |
| -shared -shared-libgcc -symbolic |
| -T <var>script</var> -Wl,<var>option</var> -Xlinker <var>option</var> |
| -u <var>symbol</var> |
| </pre></div> |
| |
| </dd> |
| <dt><em>Directory Options</em></dt> |
| <dd><p>See <a href="Directory-Options.html#Directory-Options">Options for Directory Search</a>. |
| </p><div class="smallexample"> |
| <pre class="smallexample">-B<var>prefix</var> -I<var>dir</var> -iplugindir=<var>dir</var> |
| -iquote<var>dir</var> -L<var>dir</var> -specs=<var>file</var> -I- |
| --sysroot=<var>dir</var> --no-sysroot-suffix |
| </pre></div> |
| |
| </dd> |
| <dt><em>Machine Dependent Options</em></dt> |
| <dd><p>See <a href="Submodel-Options.html#Submodel-Options">Hardware Models and Configurations</a>. |
| </p> |
| <p><em>AArch64 Options</em> |
| </p><div class="smallexample"> |
| <pre class="smallexample">-mabi=<var>name</var> -mbig-endian -mlittle-endian |
| -mgeneral-regs-only |
| -mcmodel=tiny -mcmodel=small -mcmodel=large |
| -mstrict-align |
| -momit-leaf-frame-pointer -mno-omit-leaf-frame-pointer |
| -mtls-dialect=desc -mtls-dialect=traditional |
| -mfix-cortex-a53-835769 -mno-fix-cortex-a53-835769 |
| -mfix-cortex-a53-843419 -mno-fix-cortex-a53-843419 |
| -march=<var>name</var> -mcpu=<var>name</var> -mtune=<var>name</var> |
| </pre></div> |
| |
| <p><em>Adapteva Epiphany Options</em> |
| </p><div class="smallexample"> |
| <pre class="smallexample">-mhalf-reg-file -mprefer-short-insn-regs |
| -mbranch-cost=<var>num</var> -mcmove -mnops=<var>num</var> -msoft-cmpsf |
| -msplit-lohi -mpost-inc -mpost-modify -mstack-offset=<var>num</var> |
| -mround-nearest -mlong-calls -mshort-calls -msmall16 |
| -mfp-mode=<var>mode</var> -mvect-double -max-vect-align=<var>num</var> |
| -msplit-vecmove-early -m1reg-<var>reg</var> |
| </pre></div> |
| |
| <p><em>ARC Options</em> |
| </p><div class="smallexample"> |
| <pre class="smallexample">-mbarrel-shifter |
| -mcpu=<var>cpu</var> -mA6 -mARC600 -mA7 -mARC700 |
| -mdpfp -mdpfp-compact -mdpfp-fast -mno-dpfp-lrsr |
| -mea -mno-mpy -mmul32x16 -mmul64 |
| -mnorm -mspfp -mspfp-compact -mspfp-fast -msimd -msoft-float -mswap |
| -mcrc -mdsp-packa -mdvbf -mlock -mmac-d16 -mmac-24 -mrtsc -mswape |
| -mtelephony -mxy -misize -mannotate-align -marclinux -marclinux_prof |
| -mepilogue-cfi -mlong-calls -mmedium-calls -msdata |
| -mucb-mcount -mvolatile-cache |
| -malign-call -mauto-modify-reg -mbbit-peephole -mno-brcc |
| -mcase-vector-pcrel -mcompact-casesi -mno-cond-exec -mearly-cbranchsi |
| -mexpand-adddi -mindexed-loads -mlra -mlra-priority-none |
| -mlra-priority-compact mlra-priority-noncompact -mno-millicode |
| -mmixed-code -mq-class -mRcq -mRcw -msize-level=<var>level</var> |
| -mtune=<var>cpu</var> -mmultcost=<var>num</var> -munalign-prob-threshold=<var>probability</var> |
| </pre></div> |
| |
| <p><em>ARM Options</em> |
| </p><div class="smallexample"> |
| <pre class="smallexample">-mapcs-frame -mno-apcs-frame |
| -mabi=<var>name</var> |
| -mapcs-stack-check -mno-apcs-stack-check |
| -mapcs-float -mno-apcs-float |
| -mapcs-reentrant -mno-apcs-reentrant |
| -msched-prolog -mno-sched-prolog |
| -mlittle-endian -mbig-endian -mwords-little-endian |
| -mfloat-abi=<var>name</var> |
| -mfp16-format=<var>name</var> |
| -mthumb-interwork -mno-thumb-interwork |
| -mcpu=<var>name</var> -march=<var>name</var> -mfpu=<var>name</var> |
| -mstructure-size-boundary=<var>n</var> |
| -mabort-on-noreturn |
| -mlong-calls -mno-long-calls |
| -msingle-pic-base -mno-single-pic-base |
| -mpic-register=<var>reg</var> |
| -mnop-fun-dllimport |
| -mpoke-function-name |
| -mthumb -marm |
| -mtpcs-frame -mtpcs-leaf-frame |
| -mcaller-super-interworking -mcallee-super-interworking |
| -mtp=<var>name</var> -mtls-dialect=<var>dialect</var> |
| -mword-relocations |
| -mfix-cortex-m3-ldrd |
| -munaligned-access |
| -mneon-for-64bits |
| -mslow-flash-data |
| -mrestrict-it |
| </pre></div> |
| |
| <p><em>AVR Options</em> |
| </p><div class="smallexample"> |
| <pre class="smallexample">-mmcu=<var>mcu</var> -maccumulate-args -mbranch-cost=<var>cost</var> |
| -mcall-prologues -mint8 -mno-interrupts -mrelax |
| -mstrict-X -mtiny-stack -Waddr-space-convert |
| </pre></div> |
| |
| <p><em>Blackfin Options</em> |
| </p><div class="smallexample"> |
| <pre class="smallexample">-mcpu=<var>cpu</var><span class="roman">[</span>-<var>sirevision</var><span class="roman">]</span> |
| -msim -momit-leaf-frame-pointer -mno-omit-leaf-frame-pointer |
| -mspecld-anomaly -mno-specld-anomaly -mcsync-anomaly -mno-csync-anomaly |
| -mlow-64k -mno-low64k -mstack-check-l1 -mid-shared-library |
| -mno-id-shared-library -mshared-library-id=<var>n</var> |
| -mleaf-id-shared-library -mno-leaf-id-shared-library |
| -msep-data -mno-sep-data -mlong-calls -mno-long-calls |
| -mfast-fp -minline-plt -mmulticore -mcorea -mcoreb -msdram |
| -micplb |
| </pre></div> |
| |
| <p><em>C6X Options</em> |
| </p><div class="smallexample"> |
| <pre class="smallexample">-mbig-endian -mlittle-endian -march=<var>cpu</var> |
| -msim -msdata=<var>sdata-type</var> |
| </pre></div> |
| |
| <p><em>CRIS Options</em> |
| </p><div class="smallexample"> |
| <pre class="smallexample">-mcpu=<var>cpu</var> -march=<var>cpu</var> -mtune=<var>cpu</var> |
| -mmax-stack-frame=<var>n</var> -melinux-stacksize=<var>n</var> |
| -metrax4 -metrax100 -mpdebug -mcc-init -mno-side-effects |
| -mstack-align -mdata-align -mconst-align |
| -m32-bit -m16-bit -m8-bit -mno-prologue-epilogue -mno-gotplt |
| -melf -maout -melinux -mlinux -sim -sim2 |
| -mmul-bug-workaround -mno-mul-bug-workaround |
| </pre></div> |
| |
| <p><em>CR16 Options</em> |
| </p><div class="smallexample"> |
| <pre class="smallexample">-mmac |
| -mcr16cplus -mcr16c |
| -msim -mint32 -mbit-ops |
| -mdata-model=<var>model</var> |
| </pre></div> |
| |
| <p><em>Darwin Options</em> |
| </p><div class="smallexample"> |
| <pre class="smallexample">-all_load -allowable_client -arch -arch_errors_fatal |
| -arch_only -bind_at_load -bundle -bundle_loader |
| -client_name -compatibility_version -current_version |
| -dead_strip |
| -dependency-file -dylib_file -dylinker_install_name |
| -dynamic -dynamiclib -exported_symbols_list |
| -filelist -flat_namespace -force_cpusubtype_ALL |
| -force_flat_namespace -headerpad_max_install_names |
| -iframework |
| -image_base -init -install_name -keep_private_externs |
| -multi_module -multiply_defined -multiply_defined_unused |
| -noall_load -no_dead_strip_inits_and_terms |
| -nofixprebinding -nomultidefs -noprebind -noseglinkedit |
| -pagezero_size -prebind -prebind_all_twolevel_modules |
| -private_bundle -read_only_relocs -sectalign |
| -sectobjectsymbols -whyload -seg1addr |
| -sectcreate -sectobjectsymbols -sectorder |
| -segaddr -segs_read_only_addr -segs_read_write_addr |
| -seg_addr_table -seg_addr_table_filename -seglinkedit |
| -segprot -segs_read_only_addr -segs_read_write_addr |
| -single_module -static -sub_library -sub_umbrella |
| -twolevel_namespace -umbrella -undefined |
| -unexported_symbols_list -weak_reference_mismatches |
| -whatsloaded -F -gused -gfull -mmacosx-version-min=<var>version</var> |
| -mkernel -mone-byte-bool |
| </pre></div> |
| |
| <p><em>DEC Alpha Options</em> |
| </p><div class="smallexample"> |
| <pre class="smallexample">-mno-fp-regs -msoft-float |
| -mieee -mieee-with-inexact -mieee-conformant |
| -mfp-trap-mode=<var>mode</var> -mfp-rounding-mode=<var>mode</var> |
| -mtrap-precision=<var>mode</var> -mbuild-constants |
| -mcpu=<var>cpu-type</var> -mtune=<var>cpu-type</var> |
| -mbwx -mmax -mfix -mcix |
| -mfloat-vax -mfloat-ieee |
| -mexplicit-relocs -msmall-data -mlarge-data |
| -msmall-text -mlarge-text |
| -mmemory-latency=<var>time</var> |
| </pre></div> |
| |
| <p><em>FR30 Options</em> |
| </p><div class="smallexample"> |
| <pre class="smallexample">-msmall-model -mno-lsim |
| </pre></div> |
| |
| <p><em>FRV Options</em> |
| </p><div class="smallexample"> |
| <pre class="smallexample">-mgpr-32 -mgpr-64 -mfpr-32 -mfpr-64 |
| -mhard-float -msoft-float |
| -malloc-cc -mfixed-cc -mdword -mno-dword |
| -mdouble -mno-double |
| -mmedia -mno-media -mmuladd -mno-muladd |
| -mfdpic -minline-plt -mgprel-ro -multilib-library-pic |
| -mlinked-fp -mlong-calls -malign-labels |
| -mlibrary-pic -macc-4 -macc-8 |
| -mpack -mno-pack -mno-eflags -mcond-move -mno-cond-move |
| -moptimize-membar -mno-optimize-membar |
| -mscc -mno-scc -mcond-exec -mno-cond-exec |
| -mvliw-branch -mno-vliw-branch |
| -mmulti-cond-exec -mno-multi-cond-exec -mnested-cond-exec |
| -mno-nested-cond-exec -mtomcat-stats |
| -mTLS -mtls |
| -mcpu=<var>cpu</var> |
| </pre></div> |
| |
| <p><em>GNU/Linux Options</em> |
| </p><div class="smallexample"> |
| <pre class="smallexample">-mglibc -muclibc -mbionic -mandroid |
| -tno-android-cc -tno-android-ld |
| </pre></div> |
| |
| <p><em>H8/300 Options</em> |
| </p><div class="smallexample"> |
| <pre class="smallexample">-mrelax -mh -ms -mn -mexr -mno-exr -mint32 -malign-300 |
| </pre></div> |
| |
| <p><em>HPPA Options</em> |
| </p><div class="smallexample"> |
| <pre class="smallexample">-march=<var>architecture-type</var> |
| -mdisable-fpregs -mdisable-indexing |
| -mfast-indirect-calls -mgas -mgnu-ld -mhp-ld |
| -mfixed-range=<var>register-range</var> |
| -mjump-in-delay -mlinker-opt -mlong-calls |
| -mlong-load-store -mno-disable-fpregs |
| -mno-disable-indexing -mno-fast-indirect-calls -mno-gas |
| -mno-jump-in-delay -mno-long-load-store |
| -mno-portable-runtime -mno-soft-float |
| -mno-space-regs -msoft-float -mpa-risc-1-0 |
| -mpa-risc-1-1 -mpa-risc-2-0 -mportable-runtime |
| -mschedule=<var>cpu-type</var> -mspace-regs -msio -mwsio |
| -munix=<var>unix-std</var> -nolibdld -static -threads |
| </pre></div> |
| |
| <p><em>i386 and x86-64 Options</em> |
| </p><div class="smallexample"> |
| <pre class="smallexample">-mtune=<var>cpu-type</var> -march=<var>cpu-type</var> |
| -mtune-ctrl=<var>feature-list</var> -mdump-tune-features -mno-default |
| -mfpmath=<var>unit</var> |
| -masm=<var>dialect</var> -mno-fancy-math-387 |
| -mno-fp-ret-in-387 -msoft-float |
| -mno-wide-multiply -mrtd -malign-double |
| -mpreferred-stack-boundary=<var>num</var> |
| -mincoming-stack-boundary=<var>num</var> |
| -mcld -mcx16 -msahf -mmovbe -mcrc32 |
| -mrecip -mrecip=<var>opt</var> |
| -mvzeroupper -mprefer-avx128 |
| -mmmx -msse -msse2 -msse3 -mssse3 -msse4.1 -msse4.2 -msse4 -mavx |
| -mavx2 -mavx512f -mavx512pf -mavx512er -mavx512cd -msha |
| -maes -mpclmul -mfsgsbase -mrdrnd -mf16c -mfma -mprefetchwt1 |
| -msse4a -m3dnow -mpopcnt -mabm -mbmi -mtbm -mfma4 -mxop -mlzcnt |
| -mbmi2 -mfxsr -mxsave -mxsaveopt -mrtm -mlwp -mthreads |
| -mno-align-stringops -minline-all-stringops |
| -minline-stringops-dynamically -mstringop-strategy=<var>alg</var> |
| -mmemcpy-strategy=<var>strategy</var> -mmemset-strategy=<var>strategy</var> |
| -mpush-args -maccumulate-outgoing-args -m128bit-long-double |
| -m96bit-long-double -mlong-double-64 -mlong-double-80 -mlong-double-128 |
| -mregparm=<var>num</var> -msseregparm |
| -mveclibabi=<var>type</var> -mvect8-ret-in-mem |
| -mpc32 -mpc64 -mpc80 -mstackrealign |
| -momit-leaf-frame-pointer -mno-red-zone -mno-tls-direct-seg-refs |
| -mcmodel=<var>code-model</var> -mabi=<var>name</var> -maddress-mode=<var>mode</var> |
| -m32 -m64 -mx32 -m16 -mlarge-data-threshold=<var>num</var> |
| -msse2avx -mfentry -m8bit-idiv |
| -mavx256-split-unaligned-load -mavx256-split-unaligned-store |
| -mstack-protector-guard=<var>guard</var> |
| </pre></div> |
| |
| <p><em>i386 and x86-64 Windows Options</em> |
| </p><div class="smallexample"> |
| <pre class="smallexample">-mconsole -mcygwin -mno-cygwin -mdll |
| -mnop-fun-dllimport -mthread |
| -municode -mwin32 -mwindows -fno-set-stack-executable |
| </pre></div> |
| |
| <p><em>IA-64 Options</em> |
| </p><div class="smallexample"> |
| <pre class="smallexample">-mbig-endian -mlittle-endian -mgnu-as -mgnu-ld -mno-pic |
| -mvolatile-asm-stop -mregister-names -msdata -mno-sdata |
| -mconstant-gp -mauto-pic -mfused-madd |
| -minline-float-divide-min-latency |
| -minline-float-divide-max-throughput |
| -mno-inline-float-divide |
| -minline-int-divide-min-latency |
| -minline-int-divide-max-throughput |
| -mno-inline-int-divide |
| -minline-sqrt-min-latency -minline-sqrt-max-throughput |
| -mno-inline-sqrt |
| -mdwarf2-asm -mearly-stop-bits |
| -mfixed-range=<var>register-range</var> -mtls-size=<var>tls-size</var> |
| -mtune=<var>cpu-type</var> -milp32 -mlp64 |
| -msched-br-data-spec -msched-ar-data-spec -msched-control-spec |
| -msched-br-in-data-spec -msched-ar-in-data-spec -msched-in-control-spec |
| -msched-spec-ldc -msched-spec-control-ldc |
| -msched-prefer-non-data-spec-insns -msched-prefer-non-control-spec-insns |
| -msched-stop-bits-after-every-cycle -msched-count-spec-in-critical-path |
| -msel-sched-dont-check-control-spec -msched-fp-mem-deps-zero-cost |
| -msched-max-memory-insns-hard-limit -msched-max-memory-insns=<var>max-insns</var> |
| </pre></div> |
| |
| <p><em>LM32 Options</em> |
| </p><div class="smallexample"> |
| <pre class="smallexample">-mbarrel-shift-enabled -mdivide-enabled -mmultiply-enabled |
| -msign-extend-enabled -muser-enabled |
| </pre></div> |
| |
| <p><em>M32R/D Options</em> |
| </p><div class="smallexample"> |
| <pre class="smallexample">-m32r2 -m32rx -m32r |
| -mdebug |
| -malign-loops -mno-align-loops |
| -missue-rate=<var>number</var> |
| -mbranch-cost=<var>number</var> |
| -mmodel=<var>code-size-model-type</var> |
| -msdata=<var>sdata-type</var> |
| -mno-flush-func -mflush-func=<var>name</var> |
| -mno-flush-trap -mflush-trap=<var>number</var> |
| -G <var>num</var> |
| </pre></div> |
| |
| <p><em>M32C Options</em> |
| </p><div class="smallexample"> |
| <pre class="smallexample">-mcpu=<var>cpu</var> -msim -memregs=<var>number</var> |
| </pre></div> |
| |
| <p><em>M680x0 Options</em> |
| </p><div class="smallexample"> |
| <pre class="smallexample">-march=<var>arch</var> -mcpu=<var>cpu</var> -mtune=<var>tune</var> |
| -m68000 -m68020 -m68020-40 -m68020-60 -m68030 -m68040 |
| -m68060 -mcpu32 -m5200 -m5206e -m528x -m5307 -m5407 |
| -mcfv4e -mbitfield -mno-bitfield -mc68000 -mc68020 |
| -mnobitfield -mrtd -mno-rtd -mdiv -mno-div -mshort |
| -mno-short -mhard-float -m68881 -msoft-float -mpcrel |
| -malign-int -mstrict-align -msep-data -mno-sep-data |
| -mshared-library-id=n -mid-shared-library -mno-id-shared-library |
| -mxgot -mno-xgot |
| </pre></div> |
| |
| <p><em>MCore Options</em> |
| </p><div class="smallexample"> |
| <pre class="smallexample">-mhardlit -mno-hardlit -mdiv -mno-div -mrelax-immediates |
| -mno-relax-immediates -mwide-bitfields -mno-wide-bitfields |
| -m4byte-functions -mno-4byte-functions -mcallgraph-data |
| -mno-callgraph-data -mslow-bytes -mno-slow-bytes -mno-lsim |
| -mlittle-endian -mbig-endian -m210 -m340 -mstack-increment |
| </pre></div> |
| |
| <p><em>MeP Options</em> |
| </p><div class="smallexample"> |
| <pre class="smallexample">-mabsdiff -mall-opts -maverage -mbased=<var>n</var> -mbitops |
| -mc=<var>n</var> -mclip -mconfig=<var>name</var> -mcop -mcop32 -mcop64 -mivc2 |
| -mdc -mdiv -meb -mel -mio-volatile -ml -mleadz -mm -mminmax |
| -mmult -mno-opts -mrepeat -ms -msatur -msdram -msim -msimnovec -mtf |
| -mtiny=<var>n</var> |
| </pre></div> |
| |
| <p><em>MicroBlaze Options</em> |
| </p><div class="smallexample"> |
| <pre class="smallexample">-msoft-float -mhard-float -msmall-divides -mcpu=<var>cpu</var> |
| -mmemcpy -mxl-soft-mul -mxl-soft-div -mxl-barrel-shift |
| -mxl-pattern-compare -mxl-stack-check -mxl-gp-opt -mno-clearbss |
| -mxl-multiply-high -mxl-float-convert -mxl-float-sqrt |
| -mbig-endian -mlittle-endian -mxl-reorder -mxl-mode-<var>app-model</var> |
| </pre></div> |
| |
| <p><em>MIPS Options</em> |
| </p><div class="smallexample"> |
| <pre class="smallexample">-EL -EB -march=<var>arch</var> -mtune=<var>arch</var> |
| -mips1 -mips2 -mips3 -mips4 -mips32 -mips32r2 |
| -mips64 -mips64r2 |
| -mips16 -mno-mips16 -mflip-mips16 |
| -minterlink-compressed -mno-interlink-compressed |
| -minterlink-mips16 -mno-interlink-mips16 |
| -mabi=<var>abi</var> -mabicalls -mno-abicalls |
| -mshared -mno-shared -mplt -mno-plt -mxgot -mno-xgot |
| -mgp32 -mgp64 -mfp32 -mfp64 -mhard-float -msoft-float |
| -mno-float -msingle-float -mdouble-float |
| -mabs=<var>mode</var> -mnan=<var>encoding</var> |
| -mdsp -mno-dsp -mdspr2 -mno-dspr2 |
| -mmcu -mmno-mcu |
| -meva -mno-eva |
| -mvirt -mno-virt |
| -mmicromips -mno-micromips |
| -mfpu=<var>fpu-type</var> |
| -msmartmips -mno-smartmips |
| -mpaired-single -mno-paired-single -mdmx -mno-mdmx |
| -mips3d -mno-mips3d -mmt -mno-mt -mllsc -mno-llsc |
| -mlong64 -mlong32 -msym32 -mno-sym32 |
| -G<var>num</var> -mlocal-sdata -mno-local-sdata |
| -mextern-sdata -mno-extern-sdata -mgpopt -mno-gopt |
| -membedded-data -mno-embedded-data |
| -muninit-const-in-rodata -mno-uninit-const-in-rodata |
| -mcode-readable=<var>setting</var> |
| -msplit-addresses -mno-split-addresses |
| -mexplicit-relocs -mno-explicit-relocs |
| -mcheck-zero-division -mno-check-zero-division |
| -mdivide-traps -mdivide-breaks |
| -mmemcpy -mno-memcpy -mlong-calls -mno-long-calls |
| -mmad -mno-mad -mimadd -mno-imadd -mfused-madd -mno-fused-madd -nocpp |
| -mfix-24k -mno-fix-24k |
| -mfix-r4000 -mno-fix-r4000 -mfix-r4400 -mno-fix-r4400 |
| -mfix-r10000 -mno-fix-r10000 -mfix-rm7000 -mno-fix-rm7000 |
| -mfix-vr4120 -mno-fix-vr4120 |
| -mfix-vr4130 -mno-fix-vr4130 -mfix-sb1 -mno-fix-sb1 |
| -mflush-func=<var>func</var> -mno-flush-func |
| -mbranch-cost=<var>num</var> -mbranch-likely -mno-branch-likely |
| -mfp-exceptions -mno-fp-exceptions |
| -mvr4130-align -mno-vr4130-align -msynci -mno-synci |
| -mrelax-pic-calls -mno-relax-pic-calls -mmcount-ra-address |
| </pre></div> |
| |
| <p><em>MMIX Options</em> |
| </p><div class="smallexample"> |
| <pre class="smallexample">-mlibfuncs -mno-libfuncs -mepsilon -mno-epsilon -mabi=gnu |
| -mabi=mmixware -mzero-extend -mknuthdiv -mtoplevel-symbols |
| -melf -mbranch-predict -mno-branch-predict -mbase-addresses |
| -mno-base-addresses -msingle-exit -mno-single-exit |
| </pre></div> |
| |
| <p><em>MN10300 Options</em> |
| </p><div class="smallexample"> |
| <pre class="smallexample">-mmult-bug -mno-mult-bug |
| -mno-am33 -mam33 -mam33-2 -mam34 |
| -mtune=<var>cpu-type</var> |
| -mreturn-pointer-on-d0 |
| -mno-crt0 -mrelax -mliw -msetlb |
| </pre></div> |
| |
| <p><em>Moxie Options</em> |
| </p><div class="smallexample"> |
| <pre class="smallexample">-meb -mel -mno-crt0 |
| </pre></div> |
| |
| <p><em>MSP430 Options</em> |
| </p><div class="smallexample"> |
| <pre class="smallexample">-msim -masm-hex -mmcu= -mcpu= -mlarge -msmall -mrelax |
| -mhwmult= -minrt |
| </pre></div> |
| |
| <p><em>NDS32 Options</em> |
| </p><div class="smallexample"> |
| <pre class="smallexample">-mbig-endian -mlittle-endian |
| -mreduced-regs -mfull-regs |
| -mcmov -mno-cmov |
| -mperf-ext -mno-perf-ext |
| -mv3push -mno-v3push |
| -m16bit -mno-16bit |
| -mgp-direct -mno-gp-direct |
| -misr-vector-size=<var>num</var> |
| -mcache-block-size=<var>num</var> |
| -march=<var>arch</var> |
| -mforce-fp-as-gp -mforbid-fp-as-gp |
| -mex9 -mctor-dtor -mrelax |
| </pre></div> |
| |
| <p><em>Nios II Options</em> |
| </p><div class="smallexample"> |
| <pre class="smallexample">-G <var>num</var> -mgpopt -mno-gpopt -mel -meb |
| -mno-bypass-cache -mbypass-cache |
| -mno-cache-volatile -mcache-volatile |
| -mno-fast-sw-div -mfast-sw-div |
| -mhw-mul -mno-hw-mul -mhw-mulx -mno-hw-mulx -mno-hw-div -mhw-div |
| -mcustom-<var>insn</var>=<var>N</var> -mno-custom-<var>insn</var> |
| -mcustom-fpu-cfg=<var>name</var> |
| -mhal -msmallc -msys-crt0=<var>name</var> -msys-lib=<var>name</var> |
| </pre></div> |
| |
| <p><em>PDP-11 Options</em> |
| </p><div class="smallexample"> |
| <pre class="smallexample">-mfpu -msoft-float -mac0 -mno-ac0 -m40 -m45 -m10 |
| -mbcopy -mbcopy-builtin -mint32 -mno-int16 |
| -mint16 -mno-int32 -mfloat32 -mno-float64 |
| -mfloat64 -mno-float32 -mabshi -mno-abshi |
| -mbranch-expensive -mbranch-cheap |
| -munix-asm -mdec-asm |
| </pre></div> |
| |
| <p><em>picoChip Options</em> |
| </p><div class="smallexample"> |
| <pre class="smallexample">-mae=<var>ae_type</var> -mvliw-lookahead=<var>N</var> |
| -msymbol-as-address -mno-inefficient-warnings |
| </pre></div> |
| |
| <p><em>PowerPC Options</em> |
| See RS/6000 and PowerPC Options. |
| </p> |
| <p><em>RL78 Options</em> |
| </p><div class="smallexample"> |
| <pre class="smallexample">-msim -mmul=none -mmul=g13 -mmul=rl78 |
| </pre></div> |
| |
| <p><em>RS/6000 and PowerPC Options</em> |
| </p><div class="smallexample"> |
| <pre class="smallexample">-mcpu=<var>cpu-type</var> |
| -mtune=<var>cpu-type</var> |
| -mcmodel=<var>code-model</var> |
| -mpowerpc64 |
| -maltivec -mno-altivec |
| -mpowerpc-gpopt -mno-powerpc-gpopt |
| -mpowerpc-gfxopt -mno-powerpc-gfxopt |
| -mmfcrf -mno-mfcrf -mpopcntb -mno-popcntb -mpopcntd -mno-popcntd |
| -mfprnd -mno-fprnd |
| -mcmpb -mno-cmpb -mmfpgpr -mno-mfpgpr -mhard-dfp -mno-hard-dfp |
| -mfull-toc -mminimal-toc -mno-fp-in-toc -mno-sum-in-toc |
| -m64 -m32 -mxl-compat -mno-xl-compat -mpe |
| -malign-power -malign-natural |
| -msoft-float -mhard-float -mmultiple -mno-multiple |
| -msingle-float -mdouble-float -msimple-fpu |
| -mstring -mno-string -mupdate -mno-update |
| -mavoid-indexed-addresses -mno-avoid-indexed-addresses |
| -mfused-madd -mno-fused-madd -mbit-align -mno-bit-align |
| -mstrict-align -mno-strict-align -mrelocatable |
| -mno-relocatable -mrelocatable-lib -mno-relocatable-lib |
| -mtoc -mno-toc -mlittle -mlittle-endian -mbig -mbig-endian |
| -mdynamic-no-pic -maltivec -mswdiv -msingle-pic-base |
| -mprioritize-restricted-insns=<var>priority</var> |
| -msched-costly-dep=<var>dependence_type</var> |
| -minsert-sched-nops=<var>scheme</var> |
| -mcall-sysv -mcall-netbsd |
| -maix-struct-return -msvr4-struct-return |
| -mabi=<var>abi-type</var> -msecure-plt -mbss-plt |
| -mblock-move-inline-limit=<var>num</var> |
| -misel -mno-isel |
| -misel=yes -misel=no |
| -mspe -mno-spe |
| -mspe=yes -mspe=no |
| -mpaired |
| -mgen-cell-microcode -mwarn-cell-microcode |
| -mvrsave -mno-vrsave |
| -mmulhw -mno-mulhw |
| -mdlmzb -mno-dlmzb |
| -mfloat-gprs=yes -mfloat-gprs=no -mfloat-gprs=single -mfloat-gprs=double |
| -mprototype -mno-prototype |
| -msim -mmvme -mads -myellowknife -memb -msdata |
| -msdata=<var>opt</var> -mvxworks -G <var>num</var> -pthread |
| -mrecip -mrecip=<var>opt</var> -mno-recip -mrecip-precision |
| -mno-recip-precision |
| -mveclibabi=<var>type</var> -mfriz -mno-friz |
| -mpointers-to-nested-functions -mno-pointers-to-nested-functions |
| -msave-toc-indirect -mno-save-toc-indirect |
| -mpower8-fusion -mno-mpower8-fusion -mpower8-vector -mno-power8-vector |
| -mcrypto -mno-crypto -mhtm -mno-htm -mdirect-move -mno-direct-move |
| -mquad-memory -mno-quad-memory |
| -mquad-memory-atomic -mno-quad-memory-atomic |
| -mcompat-align-parm -mno-compat-align-parm |
| </pre></div> |
| |
| <p><em>RX Options</em> |
| </p><div class="smallexample"> |
| <pre class="smallexample">-m64bit-doubles -m32bit-doubles -fpu -nofpu |
| -mcpu= |
| -mbig-endian-data -mlittle-endian-data |
| -msmall-data |
| -msim -mno-sim |
| -mas100-syntax -mno-as100-syntax |
| -mrelax |
| -mmax-constant-size= |
| -mint-register= |
| -mpid |
| -mno-warn-multiple-fast-interrupts |
| -msave-acc-in-interrupts |
| </pre></div> |
| |
| <p><em>S/390 and zSeries Options</em> |
| </p><div class="smallexample"> |
| <pre class="smallexample">-mtune=<var>cpu-type</var> -march=<var>cpu-type</var> |
| -mhard-float -msoft-float -mhard-dfp -mno-hard-dfp |
| -mlong-double-64 -mlong-double-128 |
| -mbackchain -mno-backchain -mpacked-stack -mno-packed-stack |
| -msmall-exec -mno-small-exec -mmvcle -mno-mvcle |
| -m64 -m31 -mdebug -mno-debug -mesa -mzarch |
| -mtpf-trace -mno-tpf-trace -mfused-madd -mno-fused-madd |
| -mwarn-framesize -mwarn-dynamicstack -mstack-size -mstack-guard |
| -mhotpatch=<var>halfwords</var>,<var>halfwords</var> |
| </pre></div> |
| |
| <p><em>Score Options</em> |
| </p><div class="smallexample"> |
| <pre class="smallexample">-meb -mel |
| -mnhwloop |
| -muls |
| -mmac |
| -mscore5 -mscore5u -mscore7 -mscore7d |
| </pre></div> |
| |
| <p><em>SH Options</em> |
| </p><div class="smallexample"> |
| <pre class="smallexample">-m1 -m2 -m2e |
| -m2a-nofpu -m2a-single-only -m2a-single -m2a |
| -m3 -m3e |
| -m4-nofpu -m4-single-only -m4-single -m4 |
| -m4a-nofpu -m4a-single-only -m4a-single -m4a -m4al |
| -m5-64media -m5-64media-nofpu |
| -m5-32media -m5-32media-nofpu |
| -m5-compact -m5-compact-nofpu |
| -mb -ml -mdalign -mrelax |
| -mbigtable -mfmovd -mhitachi -mrenesas -mno-renesas -mnomacsave |
| -mieee -mno-ieee -mbitops -misize -minline-ic_invalidate -mpadstruct |
| -mspace -mprefergot -musermode -multcost=<var>number</var> -mdiv=<var>strategy</var> |
| -mdivsi3_libfunc=<var>name</var> -mfixed-range=<var>register-range</var> |
| -mindexed-addressing -mgettrcost=<var>number</var> -mpt-fixed |
| -maccumulate-outgoing-args -minvalid-symbols |
| -matomic-model=<var>atomic-model</var> |
| -mbranch-cost=<var>num</var> -mzdcbranch -mno-zdcbranch |
| -mfused-madd -mno-fused-madd -mfsca -mno-fsca -mfsrra -mno-fsrra |
| -mpretend-cmove -mtas |
| </pre></div> |
| |
| <p><em>Solaris 2 Options</em> |
| </p><div class="smallexample"> |
| <pre class="smallexample">-mclear-hwcap -mno-clear-hwcap -mimpure-text -mno-impure-text |
| -pthreads -pthread |
| </pre></div> |
| |
| <p><em>SPARC Options</em> |
| </p><div class="smallexample"> |
| <pre class="smallexample">-mcpu=<var>cpu-type</var> |
| -mtune=<var>cpu-type</var> |
| -mcmodel=<var>code-model</var> |
| -mmemory-model=<var>mem-model</var> |
| -m32 -m64 -mapp-regs -mno-app-regs |
| -mfaster-structs -mno-faster-structs -mflat -mno-flat |
| -mfpu -mno-fpu -mhard-float -msoft-float |
| -mhard-quad-float -msoft-quad-float |
| -mstack-bias -mno-stack-bias |
| -munaligned-doubles -mno-unaligned-doubles |
| -muser-mode -mno-user-mode |
| -mv8plus -mno-v8plus -mvis -mno-vis |
| -mvis2 -mno-vis2 -mvis3 -mno-vis3 |
| -mcbcond -mno-cbcond |
| -mfmaf -mno-fmaf -mpopc -mno-popc |
| -mfix-at697f -mfix-ut699 |
| </pre></div> |
| |
| <p><em>SPU Options</em> |
| </p><div class="smallexample"> |
| <pre class="smallexample">-mwarn-reloc -merror-reloc |
| -msafe-dma -munsafe-dma |
| -mbranch-hints |
| -msmall-mem -mlarge-mem -mstdmain |
| -mfixed-range=<var>register-range</var> |
| -mea32 -mea64 |
| -maddress-space-conversion -mno-address-space-conversion |
| -mcache-size=<var>cache-size</var> |
| -matomic-updates -mno-atomic-updates |
| </pre></div> |
| |
| <p><em>System V Options</em> |
| </p><div class="smallexample"> |
| <pre class="smallexample">-Qy -Qn -YP,<var>paths</var> -Ym,<var>dir</var> |
| </pre></div> |
| |
| <p><em>TILE-Gx Options</em> |
| </p><div class="smallexample"> |
| <pre class="smallexample">-mcpu=CPU -m32 -m64 -mbig-endian -mlittle-endian |
| -mcmodel=<var>code-model</var> |
| </pre></div> |
| |
| <p><em>TILEPro Options</em> |
| </p><div class="smallexample"> |
| <pre class="smallexample">-mcpu=<var>cpu</var> -m32 |
| </pre></div> |
| |
| <p><em>V850 Options</em> |
| </p><div class="smallexample"> |
| <pre class="smallexample">-mlong-calls -mno-long-calls -mep -mno-ep |
| -mprolog-function -mno-prolog-function -mspace |
| -mtda=<var>n</var> -msda=<var>n</var> -mzda=<var>n</var> |
| -mapp-regs -mno-app-regs |
| -mdisable-callt -mno-disable-callt |
| -mv850e2v3 -mv850e2 -mv850e1 -mv850es |
| -mv850e -mv850 -mv850e3v5 |
| -mloop |
| -mrelax |
| -mlong-jumps |
| -msoft-float |
| -mhard-float |
| -mgcc-abi |
| -mrh850-abi |
| -mbig-switch |
| </pre></div> |
| |
| <p><em>VAX Options</em> |
| </p><div class="smallexample"> |
| <pre class="smallexample">-mg -mgnu -munix |
| </pre></div> |
| |
| <p><em>VMS Options</em> |
| </p><div class="smallexample"> |
| <pre class="smallexample">-mvms-return-codes -mdebug-main=<var>prefix</var> -mmalloc64 |
| -mpointer-size=<var>size</var> |
| </pre></div> |
| |
| <p><em>VxWorks Options</em> |
| </p><div class="smallexample"> |
| <pre class="smallexample">-mrtp -non-static -Bstatic -Bdynamic |
| -Xbind-lazy -Xbind-now |
| </pre></div> |
| |
| <p><em>x86-64 Options</em> |
| See i386 and x86-64 Options. |
| </p> |
| <p><em>Xstormy16 Options</em> |
| </p><div class="smallexample"> |
| <pre class="smallexample">-msim |
| </pre></div> |
| |
| <p><em>Xtensa Options</em> |
| </p><div class="smallexample"> |
| <pre class="smallexample">-mconst16 -mno-const16 |
| -mfused-madd -mno-fused-madd |
| -mforce-no-pic |
| -mserialize-volatile -mno-serialize-volatile |
| -mtext-section-literals -mno-text-section-literals |
| -mtarget-align -mno-target-align |
| -mlongcalls -mno-longcalls |
| </pre></div> |
| |
| <p><em>zSeries Options</em> |
| See S/390 and zSeries Options. |
| </p> |
| </dd> |
| <dt><em>Code Generation Options</em></dt> |
| <dd><p>See <a href="Code-Gen-Options.html#Code-Gen-Options">Options for Code Generation Conventions</a>. |
| </p><div class="smallexample"> |
| <pre class="smallexample">-fcall-saved-<var>reg</var> -fcall-used-<var>reg</var> |
| -ffixed-<var>reg</var> -fexceptions |
| -fnon-call-exceptions -fdelete-dead-exceptions -funwind-tables |
| -fasynchronous-unwind-tables |
| -fno-gnu-unique |
| -finhibit-size-directive -finstrument-functions |
| -finstrument-functions-exclude-function-list=<var>sym</var>,<var>sym</var>,… |
| -finstrument-functions-exclude-file-list=<var>file</var>,<var>file</var>,… |
| -fno-common -fno-ident |
| -fpcc-struct-return -fpic -fPIC -fpie -fPIE |
| -fno-jump-tables |
| -frecord-gcc-switches |
| -freg-struct-return -fshort-enums |
| -fshort-double -fshort-wchar |
| -fverbose-asm -fpack-struct[=<var>n</var>] -fstack-check |
| -fstack-limit-register=<var>reg</var> -fstack-limit-symbol=<var>sym</var> |
| -fno-stack-limit -fsplit-stack |
| -fleading-underscore -ftls-model=<var>model</var> |
| -fstack-reuse=<var>reuse_level</var> |
| -ftrapv -fwrapv -fbounds-check |
| -fvisibility -fstrict-volatile-bitfields -fsync-libcalls |
| </pre></div> |
| </dd> |
| </dl> |
| |
| |
| <hr> |
| <div class="header"> |
| <p> |
| 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> [<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> |
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