Implementation notes: x86, titan0, crypto_stream/cryptmtv3

Computer: titan0
Architecture: x86
CPU ID: GenuineIntel-000306c3-bfebfbff
SUPERCOP version: 20190803
Operation: crypto_stream
Primitive: cryptmtv3

Time	Implementation	Compiler	Benchmark date	SUPERCOP version
6472	`e/v3`	`gcc -funroll-loops -m32 -march=nocona -O2 -fomit-frame-pointer`	20190706	20190110
6480	`e/v3`	`gcc -funroll-loops -m32 -march=prescott -O2 -fomit-frame-pointer`	20190706	20190110
6508	`e/v3`	`gcc -m32 -march=barcelona -O3 -fomit-frame-pointer`	20190706	20190110
6508	`e/v3`	`gcc -m32 -march=k8 -O3 -fomit-frame-pointer`	20190706	20190110
6512	`e/v3`	`gcc -funroll-loops -m32 -march=barcelona -O3 -fomit-frame-pointer`	20190706	20190110
6512	`e/v3`	`gcc -funroll-loops -m32 -march=k8 -O3 -fomit-frame-pointer`	20190706	20190110
6524	`e/v3`	`gcc -funroll-loops -m32 -march=prescott -O3 -fomit-frame-pointer`	20190706	20190110
6532	`e/v3`	`gcc -funroll-loops -m32 -march=nocona -O3 -fomit-frame-pointer`	20190706	20190110
6532	`e/v3`	`gcc -funroll-loops -m32 -march=pentium4 -O2 -fomit-frame-pointer`	20190706	20190110
6576	`e/v3`	`gcc -funroll-loops -m32 -march=k8 -O2 -fomit-frame-pointer`	20190706	20190110
6584	`e/v3`	`gcc -funroll-loops -m32 -march=barcelona -O2 -fomit-frame-pointer`	20190706	20190110
6588	`e/v3`	`gcc -funroll-loops -m32 -march=pentium-m -O2 -fomit-frame-pointer`	20190706	20190110
6596	`e/v3`	`gcc -funroll-loops -m32 -march=prescott -O -fomit-frame-pointer`	20190706	20190110
6600	`e/v3`	`gcc -funroll-loops -m32 -march=nocona -O -fomit-frame-pointer`	20190706	20190110
6632	`e/v3`	`gcc -funroll-loops -m32 -march=pentium4 -O3 -fomit-frame-pointer`	20190706	20190110
6640	`e/v3`	`gcc -funroll-loops -m32 -march=pentium4 -O -fomit-frame-pointer`	20190706	20190110
6648	`e/v3`	`gcc -funroll-loops -m32 -march=k8 -O -fomit-frame-pointer`	20190706	20190110
6656	`e/v3`	`gcc -funroll-loops -m32 -march=barcelona -O -fomit-frame-pointer`	20190706	20190110
6664	`e/v3`	`gcc -funroll-loops -m32 -march=pentium-m -O3 -fomit-frame-pointer`	20190706	20190110
6696	`e/v3`	`gcc -funroll-loops -m32 -march=pentium-m -O -fomit-frame-pointer`	20190706	20190110
6840	`e/v3`	`gcc -m32 -march=native -mtune=native -O2 -fomit-frame-pointer`	20190706	20190110
6844	`e/v3`	`gcc -m32 -march=core-avx2 -O2 -fomit-frame-pointer`	20190706	20190110
6848	`e/v3`	`gcc -m32 -march=corei7 -O3 -fomit-frame-pointer`	20190706	20190110
6856	`e/v3`	`gcc -m32 -march=corei7 -O2 -fomit-frame-pointer`	20190706	20190110
6864	`e/v3`	`gcc -m32 -march=core-avx-i -O2 -fomit-frame-pointer`	20190706	20190110
6872	`e/v3`	`gcc -m32 -march=corei7-avx -O2 -fomit-frame-pointer`	20190706	20190110
6880	`e/v3`	`gcc -m32 -march=core-avx-i -O3 -fomit-frame-pointer`	20190706	20190110
6880	`e/v3`	`gcc -m32 -march=corei7-avx -O3 -fomit-frame-pointer`	20190706	20190110
6904	`e/v3`	`gcc -m32 -march=native -mtune=native -O3 -fomit-frame-pointer`	20190706	20190110
6948	`e/v3`	`gcc -m32 -march=nocona -O2 -fomit-frame-pointer`	20190706	20190110
6948	`e/v3`	`gcc -m32 -march=prescott -O2 -fomit-frame-pointer`	20190706	20190110
6960	`e/v3`	`gcc -m32 -march=core-avx2 -O3 -fomit-frame-pointer`	20190706	20190110
6968	`e/v3`	`gcc -m32 -march=native -mtune=native -O -fomit-frame-pointer`	20190706	20190110
6972	`e/v3`	`gcc -m32 -march=core-avx2 -O -fomit-frame-pointer`	20190706	20190110
6980	`e/v3`	`gcc -m32 -march=corei7-avx -O -fomit-frame-pointer`	20190706	20190110
6992	`e/v3`	`gcc -m32 -march=prescott -O3 -fomit-frame-pointer`	20190706	20190110
6996	`e/v3`	`gcc -m32 -march=core-avx-i -O -fomit-frame-pointer`	20190706	20190110
7008	`e/v3`	`gcc -m32 -march=core2 -msse4.1 -O3 -fomit-frame-pointer`	20190706	20190110
7016	`e/v3`	`gcc -m32 -march=k8 -O2 -fomit-frame-pointer`	20190706	20190110
7020	`e/v3`	`gcc -m32 -march=core2 -msse4 -O3 -fomit-frame-pointer`	20190706	20190110
7020	`e/v3`	`gcc -m32 -march=pentium4 -O3 -fomit-frame-pointer`	20190706	20190110
7036	`e/v3`	`gcc -m32 -march=nocona -O3 -fomit-frame-pointer`	20190706	20190110
7040	`e/v3`	`gcc -m32 -march=core2 -O3 -fomit-frame-pointer`	20190706	20190110
7044	`e/v3`	`gcc -m32 -march=core2 -msse4.1 -O2 -fomit-frame-pointer`	20190706	20190110
7044	`e/v3`	`gcc -m32 -march=core2 -msse4 -O2 -fomit-frame-pointer`	20190706	20190110
7044	`e/v3`	`gcc -m32 -march=pentium4 -O2 -fomit-frame-pointer`	20190706	20190110
7048	`e/v3`	`gcc -m32 -march=corei7 -O -fomit-frame-pointer`	20190706	20190110
7080	`e/v3`	`gcc -m32 -march=core2 -O2 -fomit-frame-pointer`	20190706	20190110
7096	`e/v3`	`gcc -m32 -march=corei7-avx -Os -fomit-frame-pointer`	20190706	20190110
7104	`e/v3`	`gcc -m32 -march=pentium-m -O2 -fomit-frame-pointer`	20190706	20190110
7128	`e/v3`	`gcc -m32 -march=barcelona -O2 -fomit-frame-pointer`	20190706	20190110
7128	`e/v3`	`gcc -m32 -march=core-avx-i -Os -fomit-frame-pointer`	20190706	20190110
7140	`e/v3`	`gcc -m32 -march=core-avx2 -Os -fomit-frame-pointer`	20190706	20190110
7140	`e/v3`	`gcc -m32 -march=native -mtune=native -Os -fomit-frame-pointer`	20190706	20190110
7160	`e/v3`	`gcc -m32 -march=pentium-m -O3 -fomit-frame-pointer`	20190706	20190110
7180	`e/v3`	`gcc -m32 -march=nocona -O -fomit-frame-pointer`	20190706	20190110
7180	`e/v3`	`gcc -m32 -march=prescott -O -fomit-frame-pointer`	20190706	20190110
7188	`e/v3`	`gcc -m32 -march=core2 -O -fomit-frame-pointer`	20190706	20190110
7192	`e/v3`	`gcc -m32 -march=core2 -msse4.1 -O -fomit-frame-pointer`	20190706	20190110
7204	`e/v3`	`gcc -m32 -march=core2 -msse4 -O -fomit-frame-pointer`	20190706	20190110
7208	`e/v3`	`gcc -m32 -march=barcelona -O -fomit-frame-pointer`	20190706	20190110
7212	`e/v3`	`gcc -m32 -march=corei7 -Os -fomit-frame-pointer`	20190706	20190110
7244	`e/v3`	`gcc -m32 -march=k8 -O -fomit-frame-pointer`	20190706	20190110
7252	`e/v3`	`gcc -m32 -march=pentium4 -O -fomit-frame-pointer`	20190706	20190110
7296	`e/v3`	`gcc -m32 -march=pentium-m -O -fomit-frame-pointer`	20190706	20190110
7520	`e/v3`	`gcc -m32 -march=core2 -Os -fomit-frame-pointer`	20190706	20190110
7532	`e/v3`	`gcc -m32 -march=core2 -msse4.1 -Os -fomit-frame-pointer`	20190706	20190110
7532	`e/v3`	`gcc -m32 -march=nocona -Os -fomit-frame-pointer`	20190706	20190110
7536	`e/v3`	`gcc -funroll-loops -m32 -march=barcelona -Os -fomit-frame-pointer`	20190706	20190110
7536	`e/v3`	`gcc -m32 -march=barcelona -Os -fomit-frame-pointer`	20190706	20190110
7536	`e/v3`	`gcc -m32 -march=core2 -msse4 -Os -fomit-frame-pointer`	20190706	20190110
7540	`e/v3`	`gcc -m32 -march=prescott -Os -fomit-frame-pointer`	20190706	20190110
7552	`e/v3`	`gcc -funroll-loops -m32 -march=nocona -Os -fomit-frame-pointer`	20190706	20190110
7556	`e/v3`	`gcc -m32 -march=pentium4 -Os -fomit-frame-pointer`	20190706	20190110
7568	`e/v3`	`gcc -m32 -march=k8 -Os -fomit-frame-pointer`	20190706	20190110
7572	`e/v3`	`gcc -funroll-loops -m32 -march=k8 -Os -fomit-frame-pointer`	20190706	20190110
7572	`e/v3`	`gcc -funroll-loops -m32 -march=pentium4 -Os -fomit-frame-pointer`	20190706	20190110
7612	`e/v3`	`gcc -funroll-loops -m32 -march=prescott -Os -fomit-frame-pointer`	20190706	20190110
7648	`e/v3`	`gcc -funroll-loops -m32 -march=pentium-m -Os -fomit-frame-pointer`	20190706	20190110
7664	`e/v3`	`gcc -m32 -march=pentium-m -Os -fomit-frame-pointer`	20190706	20190110
9420	`e/v3`	`gcc -funroll-loops -m32 -march=athlon -O2 -fomit-frame-pointer`	20190706	20190110
9448	`e/v3`	`gcc -m32 -march=k6-2 -O3 -fomit-frame-pointer`	20190706	20190110
9452	`e/v3`	`gcc -m32 -march=athlon -O3 -fomit-frame-pointer`	20190706	20190110
9456	`e/v3`	`gcc -funroll-loops -m32 -march=pentium2 -O2 -fomit-frame-pointer`	20190706	20190110
9460	`e/v3`	`gcc -m32 -march=k6-3 -O3 -fomit-frame-pointer`	20190706	20190110
9460	`e/v3`	`gcc -m32 -march=k6 -O3 -fomit-frame-pointer`	20190706	20190110
9468	`e/v3`	`gcc -funroll-loops -m32 -O2 -fomit-frame-pointer`	20190706	20190110
9488	`e/v3`	`gcc -m32 -O3 -fomit-frame-pointer`	20190706	20190110
9504	`e/v3`	`gcc -funroll-loops -m32 -march=pentium2 -O3 -fomit-frame-pointer`	20190706	20190110
9524	`e/v3`	`gcc -funroll-loops -m32 -march=athlon -O3 -fomit-frame-pointer`	20190706	20190110
9524	`e/v3`	`gcc -funroll-loops -m32 -march=pentiumpro -O2 -fomit-frame-pointer`	20190706	20190110
9528	`e/v3`	`gcc -funroll-loops -m32 -march=k6 -O2 -fomit-frame-pointer`	20190706	20190110
9536	`e/v3`	`gcc -funroll-loops -m32 -march=pentiumpro -O3 -fomit-frame-pointer`	20190706	20190110
9540	`e/v3`	`gcc -funroll-loops -m32 -march=k6-2 -O2 -fomit-frame-pointer`	20190706	20190110
9544	`e/v3`	`gcc -funroll-loops -m32 -march=k6-3 -O2 -fomit-frame-pointer`	20190706	20190110
9576	`e/v3`	`gcc -m32 -march=pentiumpro -O3 -fomit-frame-pointer`	20190706	20190110
9604	`e/v3`	`gcc -funroll-loops -m32 -march=athlon -O -fomit-frame-pointer`	20190706	20190110
9604	`e/v3`	`gcc -m32 -march=pentium2 -O3 -fomit-frame-pointer`	20190706	20190110
9632	`e/v3`	`gcc -funroll-loops -m32 -O -fomit-frame-pointer`	20190706	20190110
9672	`e/v3`	`gcc -funroll-loops -m32 -O3 -fomit-frame-pointer`	20190706	20190110
9700	`e/v3`	`gcc -funroll-loops -m32 -march=k6-3 -O3 -fomit-frame-pointer`	20190706	20190110
9712	`e/v3`	`gcc -funroll-loops -m32 -march=k6 -O3 -fomit-frame-pointer`	20190706	20190110
9724	`e/v3`	`gcc -funroll-loops -m32 -march=k6-2 -O3 -fomit-frame-pointer`	20190706	20190110
9848	`e/v3`	`gcc -funroll-loops -m32 -march=i386 -O -fomit-frame-pointer`	20190706	20190110
9860	`e/v3`	`gcc -funroll-loops -m32 -march=pentiumpro -O -fomit-frame-pointer`	20190706	20190110
9868	`e/v3`	`gcc -funroll-loops -m32 -march=pentium2 -O -fomit-frame-pointer`	20190706	20190110
9880	`e/v3`	`gcc -funroll-loops -m32 -march=i386 -O2 -fomit-frame-pointer`	20190706	20190110
9904	`e/v3`	`gcc -funroll-loops -m32 -march=i486 -O2 -fomit-frame-pointer`	20190706	20190110
9920	`e/v3`	`gcc -funroll-loops -m32 -march=pentium -O -fomit-frame-pointer`	20190706	20190110
9928	`e/v3`	`gcc -funroll-loops -m32 -march=i486 -O -fomit-frame-pointer`	20190706	20190110
9932	`e/v3`	`gcc -funroll-loops -m32 -march=pentium-mmx -O -fomit-frame-pointer`	20190706	20190110
9956	`e/v3`	`gcc -funroll-loops -m32 -march=k6-2 -O -fomit-frame-pointer`	20190706	20190110
9988	`e/v3`	`gcc -funroll-loops -m32 -march=k6 -O -fomit-frame-pointer`	20190706	20190110
9988	`e/v3`	`gcc -m32 -march=i386 -O3 -fomit-frame-pointer`	20190706	20190110
10000	`e/v3`	`gcc -funroll-loops -m32 -march=pentium -O2 -fomit-frame-pointer`	20190706	20190110
10004	`e/v3`	`gcc -funroll-loops -m32 -march=k6-3 -O -fomit-frame-pointer`	20190706	20190110
10020	`e/v3`	`gcc -funroll-loops -m32 -march=pentium-mmx -O2 -fomit-frame-pointer`	20190706	20190110
10080	`e/v3`	`gcc -m32 -march=i486 -O3 -fomit-frame-pointer`	20190706	20190110
10112	`e/v3`	`gcc -funroll-loops -m32 -march=i486 -O3 -fomit-frame-pointer`	20190706	20190110
10116	`e/v3`	`gcc -funroll-loops -m32 -march=i386 -O3 -fomit-frame-pointer`	20190706	20190110
10144	`e/v3`	`gcc -funroll-loops -m32 -march=pentium -O3 -fomit-frame-pointer`	20190706	20190110
10160	`e/v3`	`gcc -m32 -march=pentium -O3 -fomit-frame-pointer`	20190706	20190110
10168	`e/v3`	`gcc -funroll-loops -m32 -march=pentium-mmx -O3 -fomit-frame-pointer`	20190706	20190110
10288	`e/v3`	`gcc -m32 -march=pentium-mmx -O3 -fomit-frame-pointer`	20190706	20190110
11196	`e/v3`	`gcc -m32 -march=athlon -O2 -fomit-frame-pointer`	20190706	20190110
11228	`e/v3`	`gcc -m32 -O2 -fomit-frame-pointer`	20190706	20190110
11352	`e/v3`	`gcc -m32 -march=pentiumpro -O2 -fomit-frame-pointer`	20190706	20190110
11368	`e/v3`	`gcc -m32 -march=pentium2 -O2 -fomit-frame-pointer`	20190706	20190110
11548	`e/v3`	`gcc -m32 -O -fomit-frame-pointer`	20190706	20190110
11580	`e/v3`	`gcc -m32 -march=k6-2 -O2 -fomit-frame-pointer`	20190706	20190110
11600	`e/v3`	`gcc -m32 -march=k6-3 -O2 -fomit-frame-pointer`	20190706	20190110
11616	`e/v3`	`gcc -m32 -march=k6 -O2 -fomit-frame-pointer`	20190706	20190110
11624	`e/v3`	`gcc -m32 -march=athlon -O -fomit-frame-pointer`	20190706	20190110
11740	`e/v3`	`gcc -m32 -march=i386 -O -fomit-frame-pointer`	20190706	20190110
11752	`e/v3`	`gcc -m32 -march=i486 -O -fomit-frame-pointer`	20190706	20190110
11768	`e/v3`	`gcc -m32 -march=pentium-mmx -O -fomit-frame-pointer`	20190706	20190110
11792	`e/v3`	`gcc -m32 -march=pentium -O -fomit-frame-pointer`	20190706	20190110
11824	`e/v3`	`gcc -m32 -march=k6-3 -O -fomit-frame-pointer`	20190706	20190110
11836	`e/v3`	`gcc -m32 -march=k6 -O -fomit-frame-pointer`	20190706	20190110
11840	`e/v3`	`gcc -m32 -march=k6-2 -O -fomit-frame-pointer`	20190706	20190110
11856	`e/v3`	`gcc -m32 -march=i486 -O2 -fomit-frame-pointer`	20190706	20190110
11860	`e/v3`	`gcc -m32 -march=pentium2 -O -fomit-frame-pointer`	20190706	20190110
11900	`e/v3`	`gcc -m32 -march=i386 -O2 -fomit-frame-pointer`	20190706	20190110
11904	`e/v3`	`gcc -m32 -march=pentium -O2 -fomit-frame-pointer`	20190706	20190110
11916	`e/v3`	`gcc -m32 -march=pentiumpro -O -fomit-frame-pointer`	20190706	20190110
11936	`e/v3`	`gcc -m32 -march=pentium-mmx -O2 -fomit-frame-pointer`	20190706	20190110
12908	`e/v3`	`gcc -m32 -march=pentium-mmx -Os -fomit-frame-pointer`	20190706	20190110
12944	`e/v3`	`gcc -m32 -march=athlon -Os -fomit-frame-pointer`	20190706	20190110
12948	`e/v3`	`gcc -m32 -march=pentium -Os -fomit-frame-pointer`	20190706	20190110
12972	`e/v3`	`gcc -m32 -Os -fomit-frame-pointer`	20190706	20190110
13028	`e/v3`	`gcc -m32 -march=i386 -Os -fomit-frame-pointer`	20190706	20190110
13056	`e/v3`	`gcc -funroll-loops -m32 -march=i386 -Os -fomit-frame-pointer`	20190706	20190110
13072	`e/v3`	`gcc -m32 -march=i486 -Os -fomit-frame-pointer`	20190706	20190110
13076	`e/v3`	`gcc -funroll-loops -m32 -march=athlon -Os -fomit-frame-pointer`	20190706	20190110
13092	`e/v3`	`gcc -funroll-loops -m32 -march=i486 -Os -fomit-frame-pointer`	20190706	20190110
13100	`e/v3`	`gcc -funroll-loops -m32 -Os -fomit-frame-pointer`	20190706	20190110
13136	`e/v3`	`gcc -m32 -march=k6-3 -Os -fomit-frame-pointer`	20190706	20190110
13144	`e/v3`	`gcc -m32 -march=k6-2 -Os -fomit-frame-pointer`	20190706	20190110
13208	`e/v3`	`gcc -m32 -march=k6 -Os -fomit-frame-pointer`	20190706	20190110
13264	`e/v3`	`gcc -funroll-loops -m32 -march=pentium -Os -fomit-frame-pointer`	20190706	20190110
13276	`e/v3`	`gcc -funroll-loops -m32 -march=pentium-mmx -Os -fomit-frame-pointer`	20190706	20190110
13296	`e/v3`	`gcc -funroll-loops -m32 -march=k6-2 -Os -fomit-frame-pointer`	20190706	20190110
13364	`e/v3`	`gcc -funroll-loops -m32 -march=k6-3 -Os -fomit-frame-pointer`	20190706	20190110
13396	`e/v3`	`gcc -funroll-loops -m32 -march=k6 -Os -fomit-frame-pointer`	20190706	20190110
13756	`e/v3`	`gcc -funroll-loops -m32 -march=pentium2 -Os -fomit-frame-pointer`	20190706	20190110
13788	`e/v3`	`gcc -funroll-loops -m32 -march=pentiumpro -Os -fomit-frame-pointer`	20190706	20190110
13828	`e/v3`	`gcc -m32 -march=pentium2 -Os -fomit-frame-pointer`	20190706	20190110
13928	`e/v3`	`gcc -m32 -march=pentiumpro -Os -fomit-frame-pointer`	20190706	20190110

Compiler output

Implementation: crypto_stream/cryptmtv3/e/v3
Compiler: gcc -funroll-loops -m32 -march=pentium3 -O2 -fomit-frame-pointer

cryptmt-v3.c: In file included from /usr/lib/gcc/x86_64-linux-gnu/7/include/xmmintrin.h:1252:0,
cryptmt-v3.c: from /home/djb/supercop-20190110/supercop-data/titan0/x86/include/ecrypt-config.h:302,
cryptmt-v3.c: from e/cryptmt-v3.c:9,
cryptmt-v3.c: from cryptmt-v3.c:2:
cryptmt-v3.c: e/sse2.c: In function '_mm_recursion':
cryptmt-v3.c: /usr/lib/gcc/x86_64-linux-gnu/7/include/emmintrin.h:1291:1: error: inlining failed in call to always_inline '_mm_xor_si128': target specific option mismatch
cryptmt-v3.c: _mm_xor_si128 (__m128i __A, __m128i __B)
cryptmt-v3.c: ^~~~~~~~~~~~~
cryptmt-v3.c: In file included from e/cryptmt-v3.c:66:0,
cryptmt-v3.c: from cryptmt-v3.c:2:
cryptmt-v3.c: e/sse2.c:39:7: note: called from here
cryptmt-v3.c: c = _mm_xor_si128(c, a);
cryptmt-v3.c: ~~^~~~~~~~~~~~~~~~~~~~~
cryptmt-v3.c: In file included from /usr/lib/gcc/x86_64-linux-gnu/7/include/xmmintrin.h:1252:0,
cryptmt-v3.c: from /home/djb/supercop-20190110/supercop-data/titan0/x86/include/ecrypt-config.h:302,
cryptmt-v3.c: from e/cryptmt-v3.c:9,
cryptmt-v3.c: from cryptmt-v3.c:2:
cryptmt-v3.c: /usr/lib/gcc/x86_64-linux-gnu/7/include/emmintrin.h:1291:1: error: inlining failed in call to always_inline '_mm_xor_si128': target specific option mismatch
cryptmt-v3.c: _mm_xor_si128 (__m128i __A, __m128i __B)
cryptmt-v3.c: ^~~~~~~~~~~~~
cryptmt-v3.c: In file included from e/cryptmt-v3.c:66:0,
cryptmt-v3.c: from cryptmt-v3.c:2:
cryptmt-v3.c: e/sse2.c:38:7: note: called from here
cryptmt-v3.c: c = _mm_xor_si128(c, b);
cryptmt-v3.c: ~~^~~~~~~~~~~~~~~~~~~~~
cryptmt-v3.c: ...

Number of similar (compiler,implementation) pairs: 8, namely:

Compiler	Implementations
gcc -funroll-loops -m32 -march=pentium3 -O2 -fomit-frame-pointer	e/v3
gcc -funroll-loops -m32 -march=pentium3 -O3 -fomit-frame-pointer	e/v3
gcc -funroll-loops -m32 -march=pentium3 -O -fomit-frame-pointer	e/v3
gcc -funroll-loops -m32 -march=pentium3 -Os -fomit-frame-pointer	e/v3
gcc -m32 -march=pentium3 -O2 -fomit-frame-pointer	e/v3
gcc -m32 -march=pentium3 -O3 -fomit-frame-pointer	e/v3
gcc -m32 -march=pentium3 -O -fomit-frame-pointer	e/v3
gcc -m32 -march=pentium3 -Os -fomit-frame-pointer	e/v3