gcc 8.5.0
次のオプションは最適化を制御します:	-O0	-O 又マタは -O1	-O2	-O3	-Os	-Ofast	-Og
	コンパイル時間を短縮し、デバッグで期待どおりの結果が得られるようにします。 これがデフォルトです。	コンパイルの最適化には多少時間がかかり、大規模な関数の場合はより多くのメモリが必要になります。	GCC は、容量と速度のトレードオフを含まない、サポートされているほぼすべての最適化を実行します。 -O と比較して、このオプションはコンパイル時間と生成されたコードのパフォーマンスの両方を向上させます。	-O3 は、-O2 で指定されたすべての最適化をオンにし、追加ツイカの最適化もオンにします。	サイズを最適化します。 -Os は、通常はコード サイズを増加させないすべての -O2 最適化を有効にします。	厳格な基準への準拠を無視します。 -Ofast は、すべての -O3 最適化を有効にします。 最適化も可能にします	デバッグを妨げない最適化を有効にします。
-faggressive-loop-optimizations	[有効]	[有効]	[有効]	[有効]	[有効]	[有効]	[有効]
-falign-functions	[無効]	[無効]	[無効]	[無効]	[無効]	[無効]	[無効]
-falign-functions=	1	1	16	16	16	16	1
-falign-jumps	[無効]	[無効]	[無効]	[無効]	[無効]	[無効]	[無効]
-falign-jumps=	1	1	16	16	16	16	1
-falign-labels	[無効]	[無効]	[有効]	[有効]	[有効]	[有効]	[無効]
-falign-labels=	1	1	0	0	0	0	1
-falign-loops	[無効]	[無効]	[無効]	[無効]	[無効]	[無効]	[無効]
-falign-loops=	1	1	16	16	16	16	1
-fassociative-math	[無効]	[無効]	[無効]	[無効]	[無効]	[有効]	[無効]
-fasynchronous-unwind-tables	[有効]	[有効]	[有効]	[有効]	[有効]	[有効]	[有効]
-fauto-inc-dec	[有効]	[有効]	[有効]	[有効]	[有効]	[有効]	[有効]
-fbranch-count-reg	[無効]	[有効]	[有効]	[有効]	[有効]	[有効]	[無効]
-fbranch-probabilities	[無効]	[無効]	[無効]	[無効]	[無効]	[無効]	[無効]
-fbranch-target-load-optimize	[無効]	[無効]	[無効]	[無効]	[無効]	[無効]	[無効]
-fbranch-target-load-optimize2	[無効]	[無効]	[無効]	[無効]	[無効]	[無効]	[無効]
-fbtr-bb-exclusive	[無効]	[無効]	[無効]	[無効]	[無効]	[無効]	[無効]
-fcaller-saves	[無効]	[無効]	[有効]	[有効]	[有効]	[有効]	[無効]
-fcode-hoisting	[無効]	[無効]	[有効]	[有効]	[有効]	[有効]	[無効]
-fcombine-stack-adjustments	[無効]	[有効]	[有効]	[有効]	[有効]	[有効]	[有効]
-fcompare-elim	[無効]	[有効]	[有効]	[有効]	[有効]	[有効]	[有効]
-fconserve-stack	[無効]	[無効]	[無効]	[無効]	[無効]	[無効]	[無効]
-fcprop-registers	[無効]	[有効]	[有効]	[有効]	[有効]	[有効]	[有効]
-fcrossjumping	[無効]	[無効]	[有効]	[有効]	[有効]	[有効]	[無効]
-fcse-follow-jumps	[無効]	[無効]	[有効]	[有効]	[有効]	[有効]	[無効]
-fcx-fortran-rules	[無効]	[無効]	[無効]	[無効]	[無効]	[無効]	[無効]
-fcx-limited-range	[無効]	[無効]	[無効]	[無効]	[無効]	[有効]	[無効]
-fdce	[有効]	[有効]	[有効]	[有効]	[有効]	[有効]	[有効]
-fdefer-pop	[無効]	[有効]	[有効]	[有効]	[有効]	[有効]	[有効]
-fdelayed-branch	[無効]	[無効]	[無効]	[無効]	[無効]	[無効]	[無効]
-fdelete-dead-exceptions	[無効]	[無効]	[無効]	[無効]	[無効]	[無効]	[無効]
-fdelete-null-pointer-checks	[有効]	[有効]	[有効]	[有効]	[有効]	[有効]	[有効]
-fdevirtualize	[無効]	[無効]	[有効]	[有効]	[有効]	[有効]	[無効]
-fdevirtualize-speculatively	[無効]	[無効]	[有効]	[有効]	[有効]	[有効]	[無効]
-fdse	[有効]	[有効]	[有効]	[有効]	[有効]	[有効]	[有効]
-fearly-inlining	[有効]	[有効]	[有効]	[有効]	[有効]	[有効]	[有効]
-fexceptions	[無効]	[無効]	[無効]	[無効]	[無効]	[無効]	[無効]
-fexpensive-optimizations	[無効]	[無効]	[有効]	[有効]	[有効]	[有効]	[無効]
-ffast-math
-ffinite-math-only	[無効]	[無効]	[無効]	[無効]	[無効]	[有効]	[無効]
-ffloat-store	[無効]	[無効]	[無効]	[無効]	[無効]	[無効]	[無効]
-fforward-propagate	[無効]	[有効]	[有効]	[有効]	[有効]	[有効]	[有効]
-ffp-contract=[off|on|fast]	fast	fast	fast	fast	fast	fast	fast
-ffp-int-builtin-inexact	[有効]	[有効]	[有効]	[有効]	[有効]	[有効]	[有効]
-ffunction-cse	[有効]	[有効]	[有効]	[有効]	[有効]	[有効]	[有効]
-fgcse	[無効]	[無効]	[有効]	[有効]	[有効]	[有効]	[無効]
-fgcse-after-reload	[無効]	[無効]	[無効]	[有効]	[無効]	[有効]	[無効]
-fgcse-las	[無効]	[無効]	[無効]	[無効]	[無効]	[無効]	[無効]
-fgcse-lm	[有効]	[有効]	[有効]	[有効]	[有効]	[有効]	[有効]
-fgcse-sm	[無効]	[無効]	[無効]	[無効]	[無効]	[無効]	[無効]
-fgraphite	[無効]	[無効]	[無効]	[無効]	[無効]	[無効]	[無効]
-fgraphite-identity	[無効]	[無効]	[無効]	[無効]	[無効]	[無効]	[無効]
-fguess-branch-probability	[無効]	[有効]	[有効]	[有効]	[有効]	[有効]	[有効]
-fhandle-exceptions
-fhoist-adjacent-loads	[無効]	[無効]	[有効]	[有効]	[有効]	[有効]	[無効]
-fif-conversion	[無効]	[有効]	[有効]	[有効]	[有効]	[有効]	[無効]
-fif-conversion2	[無効]	[有効]	[有効]	[有効]	[有効]	[有効]	[無効]
-findirect-inlining	[無効]	[無効]	[有効]	[有効]	[有効]	[有効]	[無効]
-finline	[有効]	[有効]	[有効]	[有効]	[有効]	[有効]	[有効]
-finline-atomics	[有効]	[有効]	[有効]	[有効]	[有効]	[有効]	[有効]
-finline-functions	[無効]	[無効]	[無効]	[有効]	[有効]	[有効]	[無効]
-finline-functions-called-once	[無効]	[有効]	[有効]	[有効]	[有効]	[有効]	[無効]
-finline-small-functions	[無効]	[無効]	[有効]	[有効]	[有効]	[有効]	[無効]
-fipa-bit-cp	[無効]	[無効]	[有効]	[有効]	[有効]	[有効]	[無効]
-fipa-cp	[無効]	[無効]	[有効]	[有効]	[有効]	[有効]	[無効]
-fipa-cp-clone	[無効]	[無効]	[無効]	[有効]	[無効]	[有効]	[無効]
-fipa-icf	[無効]	[無効]	[有効]	[有効]	[有効]	[有効]	[無効]
-fipa-icf-functions	[無効]	[無効]	[有効]	[有効]	[有効]	[有効]	[無効]
-fipa-icf-variables	[無効]	[無効]	[有効]	[有効]	[有効]	[有効]	[無効]
-fipa-profile	[無効]	[有効]	[有効]	[有効]	[有効]	[有効]	[有効]
-fipa-pta	[無効]	[無効]	[無効]	[無効]	[無効]	[無効]	[無効]
-fipa-pure-const	[無効]	[有効]	[有効]	[有効]	[有効]	[有効]	[有効]
-fipa-ra	[無効]	[無効]	[有効]	[有効]	[有効]	[有効]	[無効]
-fipa-reference	[無効]	[有効]	[有効]	[有効]	[有効]	[有効]	[有効]
-fipa-sra	[無効]	[無効]	[有効]	[有効]	[有効]	[有効]	[無効]
-fipa-vrp	[無効]	[無効]	[有効]	[有効]	[有効]	[有効]	[無効]
-fira-algorithm=[CB|priority]	CB	CB	CB	CB	CB	CB	CB
-fira-hoist-pressure	[有効]	[有効]	[有効]	[有効]	[有効]	[有効]	[有効]
-fira-loop-pressure	[無効]	[無効]	[無効]	[無効]	[無効]	[無効]	[無効]
-fira-region=[one|all|mixed]	[デフォルト]	[デフォルト]	[デフォルト]	[デフォルト]	[デフォルト]	[デフォルト]	[デフォルト]
-fira-share-save-slots	[有効]	[有効]	[有効]	[有効]	[有効]	[有効]	[有効]
-fira-share-spill-slots	[有効]	[有効]	[有効]	[有効]	[有効]	[有効]	[有効]
-fisolate-erroneous-paths-attribute	[無効]	[無効]	[無効]	[無効]	[無効]	[無効]	[無効]
-fisolate-erroneous-paths-dereference	[無効]	[無効]	[有効]	[有効
-fivopts	[有効]	[有効]	[有効]	[有効]	[有効]	[有効]	[有効]
-fjump-tables	[有効]	[有効]	[有効]	[有効]	[有効]	[有効]	[有効]
-fkeep-gc-roots-live	[無効]	[無効]	[無効]	[無効]	[無効]	[無効]	[無効]
-flifetime-dse	[有効]	[有効]	[有効]	[有効]	[有効]	[有効]	[有効]
-flifetime-dse=<0,2>	2	2	2	2	2	2	2
-flimit-function-alignment	[無効]	[無効]	[無効]	[無効]	[無効]	[無効]	[無効]
-flive-patching
-flive-patching=[inline-only-static|inline-clone]	[デフォルト]	[デフォルト]	[デフォルト]	[デフォルト]	[デフォルト]	[デフォルト]	[デフォルト]
-flive-range-shrinkage	[無効]	[無効]	[無効]	[無効]	[無効]	[無効]	[無効]
-floop-interchange	[無効]	[無効]	[無効]	[有効]	[無効]	[有効]	[無効]
-floop-nest-optimize	[無効]	[無効]	[無効]	[無効]	[無効]	[無効]	[無効]
-floop-parallelize-all	[無効]	[無効]	[無効]	[無効]	[無効]	[無効]	[無効]
-floop-unroll-and-jam	[無効]	[無効]	[無効]	[有効]	[無効]	[有効]	[無効]
-flra-remat	[無効]	[無効]	[有効]	[有効]	[有効]	[有効]	[無効]
-fmath-errno	[有効]	[有効]	[有効]	[有効]	[有効]	[無効]	[有効]
-fmodulo-sched	[無効]	[無効]	[無効]	[無効]	[無効]	[無効]	[無効]
-fmodulo-sched-allow-regmoves	[無効]	[無効]	[無効]	[無効]	[無効]	[無効]	[無効]
-fmove-loop-invariants	[無効]	[有効]	[有効]	[有効]	[有効]	[有効]	[無効]
-fnon-call-exceptions	[無効]	[無効]	[無効]	[無効]	[無効]	[無効]	[無効]
-fnothrow-opt	[無効]	[無効]	[無効]	[無効]	[無効]	[無効]	[無効]
-fomit-frame-pointer	[無効]	[有効]	[有効]	[有効]	[有効]	[有効]	[有効]
-fopt-info	[無効]	[無効]	[無効]	[無効]	[無効]	[無効]	[無効]
-foptimize-sibling-calls	[無効]	[無効]	[有効]	[有効]	[有効]	[有効]	[無効]
-foptimize-strlen	[無効]	[無効]	[有効]	[有効]	[無効]	[有効]	[無効]
-fpack-struct	[無効]	[無効]	[無効]	[無効]	[無効]	[無効]	[無効]
-fpack-struct=<number>
-fpartial-inlining	[無効]	[無効]	[有効]	[有効]	[有効]	[有効]	[無効]
-fpatchable-function-entry=
-fpeel-loops	[無効]	[無効]	[無効]	[有効]	[無効]	[有効]	[無効]
-fpeephole	[有効]	[有効]	[有効]	[有効]	[有効]	[有効]	[有効]
-fpeephole2	[無効]	[無効]	[有効]	[有効]	[有効]	[有効]	[無効]
-fplt	[有効]	[有効]	[有効]	[有効]	[有効]	[有効]	[有効]
-fpredictive-commoning	[無効]	[無効]	[無効]	[有効]	[無効]	[有効]	[無効]
-fprefetch-loop-arrays	[有効]	[有効]	[有効]	[有効]	[有効]	[有効]	[有効]
-fprintf-return-value	[有効]	[有効]	[有効]	[有効]	[有効]	[有効]	[有効]
-freciprocal-math	[無効]	[無効]	[無効]	[無効]	[無効]	[有効]	[無効]
-freg-struct-return	[有効]	[有効]	[有効]	[有効]	[有効]	[有効]	[有効]
-frename-registers	[有効]	[有効]	[有効]	[有効]	[有効]	[有効]	[有効]
-freorder-blocks	[無効]	[有効]	[有効]	[有効]	[有効]	[有効]	[有効]
-freorder-blocks-algorithm=[simple|stc]	simple	simple	stc	stc	stc	stc	simple
-freorder-blocks-and-partition	[無効]	[無効]	[有効]	[有効]	[有効]	[有効]	[無効]
-freorder-functions	[無効]	[無効]	[有効]	[有効]	[有効]	[有効]	[無効]
-frerun-cse-after-loop	[無効]	[無効]	[有効]	[有効]	[有効]	[有効]	[無効]
-freschedule-modulo-scheduled-loops	[無効]	[無効]	[無効]	[無効]	[無効]	[無効]	[無効]
-frounding-math	[無効]	[無効]	[無効]	[無効]	[無効]	[無効]	[無効]
-frtti	[有効]	[有効]	[有効]	[有効]	[有効]	[有効]	[有効]
-fsched-critical-path-heuristic	[有効]	[有効]	[有効]	[有効]	[有効]	[有効]	[有効]
-fsched-dep-count-heuristic	[有効]	[有効]	[有効]	[有効]	[有効]	[有効]	[有効]
-fsched-group-heuristic	[有効]	[有効]	[有効]	[有効]	[有効]	[有効]	[有効]
-fsched-interblock	[有効]	[有効]	[有効]	[有効]	[有効]	[有効]	[有効]
-fsched-last-insn-heuristic	[有効]	[有効]	[有効]	[有効]	[有効]	[有効]	[有効]
-fsched-pressure	[無効]	[無効]	[無効]	[無効]	[無効]	[無効]	[無効]
-fsched-rank-heuristic	[有効]	[有効]	[有効]	[有効]	[有効]	[有効]	[有効]
-fsched-spec	[有効]	[有効]	[有効]	[有効]	[有効]	[有効]	[有効]
-fsched-spec-insn-heuristic	[有効]	[有効]	[有効]	[有効]	[有効]	[有効]	[有効]
-fsched-spec-load	[無効]	[無効]	[無効]	[無効]	[無効]	[無効]	[無効]
-fsched-spec-load-dangerous	[無効]	[無効]	[無効]	[無効]	[無効]	[無効]	[無効]
-fsched-stalled-insns	[無効]	[無効]	[無効]	[無効]	[無効]	[無効]	[無効]
-fsched-stalled-insns-dep	[有効]	[有効]	[有効]	[有効]	[有効]	[有効]	[有効]
-fsched-stalled-insns-dep=<number>
-fsched-stalled-insns=<number>
-fsched2-use-superblocks	[無効]	[無効]	[無効]	[無効]	[無効]	[無効]	[無効]
-fschedule-fusion	[有効]	[有効]	[有効]	[有効]	[有効]	[有効]	[有効]
-fschedule-insns	[無効]	[無効]	[無効]	[無効]	[無効]	[無効]	[無効]
-fschedule-insns2	[無効]	[無効]	[有効]	[有効]	[有効]	[有効]	[無効]
-fsection-anchors	[無効]	[無効]	[無効]	[無効]	[無効]	[無効]	[無効]
-fsel-sched-pipelining	[無効]	[無効]	[無効]	[無効]	[無効]	[無効]	[無効]
-fsel-sched-pipelining-outer-loops	[無効]	[無効]	[無効]	[無効]	[無効]	[無効]	[無効]
-fsel-sched-reschedule-pipelined	[無効]	[無効]	[無効]	[無効]	[無効]	[無効]	[無効]
-fselective-scheduling	[無効]	[無効]	[無効]	[無効]	[無効]	[無効]	[無効]
-fselective-scheduling2	[無効]	[無効]	[無効]	[無効]	[無効]	[無効]	[無効]
-fshort-enums	[有効]	[有効]	[有効]	[有効]	[有効]	[有効]	[有効]
-fshort-wchar	[無効]	[無効]	[無効]	[無効]	[無効]	[無効]	[無効]
-fshrink-wrap	[無効]	[有効]	[有効]	[有効]	[有効]	[有効]	[有効]
-fshrink-wrap-separate	[有効]	[有効]	[有効]	[有効]	[有効]	[有効]	[有効]
-fsignaling-nans	[無効]	[無効]	[無効]	[無効]	[無効]	[無効]	[無効]
-fsigned-zeros	[有効]	[有効]	[有効]	[有効]	[有効]	[無効]	[有効]
-fsimd-cost-model=[unlimited|dynamic|cheap]	unlimited	unlimited	unlimited	unlimited	unlimited	unlimited	unlimited
-fsingle-precision-constant	[無効]	[無効]	[無効]	[無効]	[無効]	[無効]	[無効]
-fsplit-ivs-in-unroller	[有効]	[有効]	[有効]	[有効]	[有効]	[有効]	[有効]
-fsplit-loops	[無効]	[無効]	[無効]	[有効]	[無効]	[有効]	[無効]
-fsplit-paths	[無効]	[無効]	[無効]	[有効]	[無効]	[有効]	[無効]
-fsplit-wide-types	[無効]	[有効]	[有効]	[有効]	[有効]	[有効]	[有効]
-fssa-backprop	[有効]	[有効]	[有効]	[有効]	[有効]	[有効]	[有効]
-fssa-phiopt	[無効]	[有効]	[有効]	[有効]	[有効]	[有効]	[無効]
-fstack-check=[no|generic|specific]
-fstack-clash-protection	[無効]	[無効]	[無効]	[無効]	[無効]	[無効]	[無効]
-fstack-protector	[無効]	[無効]	[無効]	[無効]	[無効]	[無効]	[無効]
-fstack-protector-all	[無効]	[無効]	[無効]	[無効]	[無効]	[無効]	[無効]
-fstack-protector-explicit	[無効]	[無効]	[無効]	[無効]	[無効]	[無効]	[無効]
-fstack-protector-strong	[無効]	[無効]	[無効]	[無効]	[無効]	[無効]	[無効]
-fstack-reuse=[all|named_vars|none]	all	all	all	all	all	all	all
-fstdarg-opt	[有効]	[有効]	[有効]	[有効]	[有効]	[有効]	[有効]
-fstore-merging	[無効]	[無効]	[有効]	[有効]	[有効]	[有効]	[無効]
-fstrict-aliasing	[無効]	[無効]	[有効]	[有効]	[有効]	[有効]	[無効]
-fstrict-enums	[無効]	[無効]	[無効]	[無効]	[無効]	[無効]	[無効]
-fstrict-volatile-bitfields	[有効]	[有効]	[有効]	[有効]	[有効]	[有効]	[有効]
-fthread-jumps	[無効]	[無効]	[有効]	[有効]	[有効]	[有効]	[無効]
-fno-threadsafe-statics	[有効]	[有効]	[有効]	[有効]	[有効]	[有効]	[有効]
-ftracer	[無効]	[無効]	[無効]	[無効]	[無効]	[無効]	[無効]
-ftrapping-math	[有効]	[有効]	[有効]	[有効]	[有効]	[無効]	[有効]
-ftrapv	[無効]	[無効]	[無効]	[無効]	[無効]	[無効]	[無効]
-ftree-bit-ccp	[無効]	[有効]	[有効]	[有効]	[有効]	[有効]	[無効]
-ftree-builtin-call-dce	[無効]	[有効]	[有効]	[有効]	[有効]	[有効]	[有効]
-ftree-ccp	[無効]	[有効]	[有効]	[有効]	[有効]	[有効]	[有効]
-ftree-ch	[無効]	[有効]	[有効]	[有効]	[有効]	[有効]	[有効]
-ftree-coalesce-vars	[無効]	[有効]	[有効]	[有効]	[有効]	[有効]	[有効]
-ftree-copy-prop	[無効]	[有効]	[有効]	[有効]	[有効]	[有効]	[有効]
-ftree-cselim	[有効]	[有効]	[有効]	[有効]	[有効]	[有効]	[有効]
-ftree-dce	[無効]	[有効]	[有効]	[有効]	[有効]	[有効]	[有効]
-ftree-dominator-opts	[無効]	[有効]	[有効]	[有効]	[有効]	[有効]	[有効]
-ftree-dse	[無効]	[有効]	[有効]	[有効]	[有効]	[有効]	[有効]
-ftree-forwprop	[有効]	[有効]	[有効]	[有効]	[有効]	[有効]	[有効]
-ftree-fre	[無効]	[有効]	[有効]	[有効]	[有効]	[有効]	[有効]
-ftree-loop-distribute-patterns	[無効]	[無効]	[無効]	[有効]	[無効]	[有効]	[無効]
-ftree-loop-distribution	[無効]	[無効]	[無効]	[有効]	[無効]	[有効]	[無効]
-ftree-loop-if-convert	[有効]	[有効]	[有効]	[有効]	[有効]	[有効]	[有効]
-ftree-loop-im	[有効]	[有効]	[有効]	[有効]	[有効]	[有効]	[有効]
-ftree-loop-ivcanon	[有効]	[有効]	[有効]	[有効]	[有効]	[有効]	[有効]
-ftree-loop-optimize	[有効]	[有効]	[有効]	[有効]	[有効]	[有効]	[有効]
-ftree-loop-vectorize	[無効]	[無効]	[無効]	[有効]	[無効]	[有効]	[無効]
-ftree-lrs	[無効]	[無効]	[無効]	[無効]	[無効]	[無効]	[無効]
-ftree-parallelize-loops=<number>	1	1	1	1	1	1	1
-ftree-partial-pre	[無効]	[無効]	[無効]	[有効]	[無効]	[有効]	[無効]
-ftree-phiprop	[有効]	[有効]	[有効]	[有効]	[有効]	[有効]	[有効]
-ftree-pre	[無効]	[無効]	[有効]	[有効]	[有効]	[有効]	[無効]
-ftree-pta	[無効]	[有効]	[有効]	[有効]	[有効]	[有効]	[無効]
-ftree-reassoc	[有効]	[有効]	[有効]	[有効]	[有効]	[有効]	[有効]
-ftree-scev-cprop	[有効]	[有効]	[有効]	[有効]	[有効]	[有効]	[有効]
-ftree-sink	[無効]	[有効]	[有効]	[有効]	[有効]	[有効]	[有効]
-ftree-slp-vectorize	[無効]	[無効]	[無効]	[有効]	[無効]	[有効]	[無効]
-ftree-slsr	[無効]	[有効]	[有効]	[有効]	[有効]	[有効]	[有効]
-ftree-sra	[無効]	[有効]	[有効]	[有効]	[有効]	[有効]	[無効]
-ftree-switch-conversion	[無効]	[無効]	[有効]	[有効]	[有効]	[有効]	[無効]
-ftree-tail-merge	[無効]	[無効]	[有効]	[有効]	[有効]	[有効]	[無効]
-ftree-ter	[無効]	[有効]	[有効]	[有効]	[有効]	[有効]	[有効]
-ftree-vectorize
-ftree-vrp	[無効]	[無効]	[有効]	[有効]	[有効]	[有効]	[無効]
-funconstrained-commons	[無効]	[無効]	[無効]	[無効]	[無効]	[無効]	[無効]
-funroll-all-loops	[無効]	[無効]	[無効]	[無効]	[無効]	[無効]	[無効]
-funroll-loops	[無効]	[無効]	[無効]	[無効]	[無効]	[無効]	[無効]
-funsafe-math-optimizations	[無効]	[無効]	[無効]	[無効]	[無効]	[有効]	[無効]
-funswitch-loops	[無効]	[無効]	[無効]	[有効]	[無効]	[有効]	[無効]
-funwind-tables	[有効]	[有効]	[有効]	[有効]	[有効]	[有効]	[有効]
-fvar-tracking	[有効]	[有効]	[有効]	[有効]	[有効]	[有効]	[有効]
-fvar-tracking-assignments	[有効]	[有効]	[有効]	[有効]	[有効]	[有効]	[有効]
-fvar-tracking-assignments-toggle	[無効]	[無効]	[無効]	[無効]	[無効]	[無効]	[無効]
-fvar-tracking-uninit	[無効]	[無効]	[無効]	[無効]	[無効]	[無効]	[無効]
-fvariable-expansion-in-unroller	[無効]	[無効]	[無効]	[無効]	[無効]	[無効]	[無効]
Specifies the cost model for vectorization. -fvect-cost-model=[unlimited|dynamic|cheap]	[デフォルト]	[デフォルト]	cheap	dynamic	cheap	dynamic	[デフォルト]
-fvpt	[無効]	[無効]	[無効]	[無効]	[無効]	[無効]	[無効]
-fweb	[有効]	[有効]	[有効]	[有効]	[有効]	[有効]	[有効]
-fwrapv	[無効]	[無効]	[無効]	[無効]	[無効]	[無効]	[無効]
-fwrapv-pointer	[無効]	[無効]	[無効]	[無効]	[無効]	[無効]	[無効]