Implementation notes: x86, kizomba, crypto_stream/cryptmtv3

Computer: kizomba
Architecture: x86
CPU ID: GenuineIntel-000906e9-bfebfbff
SUPERCOP version: 20181216
Operation: crypto_stream
Primitive: cryptmtv3

Time	Implementation	Compiler	Benchmark date	SUPERCOP version
6395	`e/v3`	`gcc -m32 -march=barcelona -O3 -fomit-frame-pointer`	20180820	20180818
6423	`e/v3`	`gcc -funroll-loops -m32 -march=barcelona -O2 -fomit-frame-pointer`	20180820	20180818
6445	`e/v3`	`gcc -funroll-loops -m32 -march=barcelona -O3 -fomit-frame-pointer`	20180820	20180818
6445	`e/v3`	`gcc -funroll-loops -m32 -march=k8 -O3 -fomit-frame-pointer`	20180820	20180818
6453	`e/v3`	`gcc -funroll-loops -m32 -march=prescott -O2 -fomit-frame-pointer`	20180820	20180818
6462	`e/v3`	`gcc -funroll-loops -m32 -march=nocona -O2 -fomit-frame-pointer`	20180820	20180818
6469	`e/v3`	`gcc -m32 -march=k8 -O3 -fomit-frame-pointer`	20180820	20180818
6480	`e/v3`	`gcc -funroll-loops -m32 -march=k8 -O2 -fomit-frame-pointer`	20180820	20180818
6484	`e/v3`	`gcc -funroll-loops -m32 -march=prescott -O3 -fomit-frame-pointer`	20180820	20180818
6496	`e/v3`	`gcc -funroll-loops -m32 -march=nocona -O3 -fomit-frame-pointer`	20180820	20180818
6498	`e/v3`	`gcc -funroll-loops -m32 -march=pentium4 -O2 -fomit-frame-pointer`	20180820	20180818
6504	`e/v3`	`gcc -funroll-loops -m32 -march=pentium-m -O2 -fomit-frame-pointer`	20180820	20180818
6545	`e/v3`	`gcc -funroll-loops -m32 -march=pentium4 -O3 -fomit-frame-pointer`	20180820	20180818
6551	`e/v3`	`gcc -funroll-loops -m32 -march=pentium-m -O3 -fomit-frame-pointer`	20180820	20180818
6554	`e/v3`	`gcc -funroll-loops -m32 -march=nocona -O -fomit-frame-pointer`	20180820	20180818
6558	`e/v3`	`gcc -funroll-loops -m32 -march=prescott -O -fomit-frame-pointer`	20180820	20180818
6576	`e/v3`	`gcc -m32 -march=corei7 -O2 -fomit-frame-pointer`	20180820	20180818
6587	`e/v3`	`gcc -m32 -march=core-avx-i -O2 -fomit-frame-pointer`	20180820	20180818
6591	`e/v3`	`gcc -m32 -march=corei7-avx -O2 -fomit-frame-pointer`	20180820	20180818
6595	`e/v3`	`gcc -m32 -march=corei7 -O3 -fomit-frame-pointer`	20180820	20180818
6607	`e/v3`	`gcc -m32 -march=corei7-avx -O3 -fomit-frame-pointer`	20180820	20180818
6609	`e/v3`	`gcc -m32 -march=core-avx-i -O3 -fomit-frame-pointer`	20180820	20180818
6618	`e/v3`	`gcc -funroll-loops -m32 -march=pentium4 -O -fomit-frame-pointer`	20180820	20180818
6621	`e/v3`	`gcc -funroll-loops -m32 -march=barcelona -O -fomit-frame-pointer`	20180820	20180818
6641	`e/v3`	`gcc -funroll-loops -m32 -march=pentium-m -O -fomit-frame-pointer`	20180820	20180818
6649	`e/v3`	`gcc -funroll-loops -m32 -march=k8 -O -fomit-frame-pointer`	20180820	20180818
6670	`e/v3`	`gcc -m32 -march=core-avx2 -O2 -fomit-frame-pointer`	20180820	20180818
6673	`e/v3`	`gcc -m32 -march=core-avx2 -O3 -fomit-frame-pointer`	20180820	20180818
6788	`e/v3`	`gcc -m32 -march=corei7 -O -fomit-frame-pointer`	20180820	20180818
6817	`e/v3`	`gcc -m32 -march=core-avx-i -O -fomit-frame-pointer`	20180820	20180818
6823	`e/v3`	`gcc -m32 -march=corei7 -Os -fomit-frame-pointer`	20180820	20180818
6825	`e/v3`	`gcc -m32 -march=core-avx2 -O -fomit-frame-pointer`	20180820	20180818
6829	`e/v3`	`gcc -m32 -march=corei7-avx -Os -fomit-frame-pointer`	20180820	20180818
6830	`e/v3`	`gcc -m32 -march=core-avx-i -Os -fomit-frame-pointer`	20180820	20180818
6844	`e/v3`	`gcc -m32 -march=corei7-avx -O -fomit-frame-pointer`	20180820	20180818
6851	`e/v3`	`gcc -m32 -march=nocona -O2 -fomit-frame-pointer`	20180820	20180818
6851	`e/v3`	`gcc -m32 -march=prescott -O2 -fomit-frame-pointer`	20180820	20180818
6853	`e/v3`	`gcc -m32 -march=native -mtune=native -O2 -fomit-frame-pointer`	20180820	20180818
6859	`e/v3`	`gcc -m32 -march=native -mtune=native -O3 -fomit-frame-pointer`	20180820	20180818
6860	`e/v3`	`gcc -m32 -march=core2 -O3 -fomit-frame-pointer`	20180820	20180818
6862	`e/v3`	`gcc -m32 -march=core2 -msse4.1 -O3 -fomit-frame-pointer`	20180820	20180818
6869	`e/v3`	`gcc -m32 -march=core2 -O2 -fomit-frame-pointer`	20180820	20180818
6877	`e/v3`	`gcc -m32 -march=core-avx2 -Os -fomit-frame-pointer`	20180820	20180818
6877	`e/v3`	`gcc -m32 -march=k8 -O2 -fomit-frame-pointer`	20180820	20180818
6887	`e/v3`	`gcc -m32 -march=pentium4 -O3 -fomit-frame-pointer`	20180820	20180818
6893	`e/v3`	`gcc -m32 -march=nocona -O3 -fomit-frame-pointer`	20180820	20180818
6899	`e/v3`	`gcc -m32 -march=core2 -msse4 -O2 -fomit-frame-pointer`	20180820	20180818
6906	`e/v3`	`gcc -m32 -march=core2 -msse4 -O3 -fomit-frame-pointer`	20180820	20180818
6907	`e/v3`	`gcc -m32 -march=core2 -msse4.1 -O2 -fomit-frame-pointer`	20180820	20180818
6911	`e/v3`	`gcc -m32 -march=prescott -O3 -fomit-frame-pointer`	20180820	20180818
6920	`e/v3`	`gcc -m32 -march=pentium4 -O2 -fomit-frame-pointer`	20180820	20180818
6921	`e/v3`	`gcc -m32 -march=pentium-m -O2 -fomit-frame-pointer`	20180820	20180818
6925	`e/v3`	`gcc -m32 -march=barcelona -O2 -fomit-frame-pointer`	20180820	20180818
6998	`e/v3`	`gcc -m32 -march=pentium-m -O3 -fomit-frame-pointer`	20180820	20180818
7004	`e/v3`	`gcc -m32 -march=nocona -O -fomit-frame-pointer`	20180820	20180818
7006	`e/v3`	`gcc -m32 -march=core2 -O -fomit-frame-pointer`	20180820	20180818
7015	`e/v3`	`gcc -m32 -march=core2 -msse4 -O -fomit-frame-pointer`	20180820	20180818
7019	`e/v3`	`gcc -m32 -march=prescott -O -fomit-frame-pointer`	20180820	20180818
7029	`e/v3`	`gcc -m32 -march=core2 -msse4.1 -O -fomit-frame-pointer`	20180820	20180818
7044	`e/v3`	`gcc -m32 -march=native -mtune=native -O -fomit-frame-pointer`	20180820	20180818
7072	`e/v3`	`gcc -m32 -march=pentium4 -O -fomit-frame-pointer`	20180820	20180818
7088	`e/v3`	`gcc -m32 -march=barcelona -O -fomit-frame-pointer`	20180820	20180818
7107	`e/v3`	`gcc -m32 -march=k8 -O -fomit-frame-pointer`	20180820	20180818
7131	`e/v3`	`gcc -m32 -march=pentium-m -O -fomit-frame-pointer`	20180820	20180818
7157	`e/v3`	`gcc -funroll-loops -m32 -march=barcelona -Os -fomit-frame-pointer`	20180820	20180818
7163	`e/v3`	`gcc -m32 -march=barcelona -Os -fomit-frame-pointer`	20180820	20180818
7165	`e/v3`	`gcc -m32 -march=native -mtune=native -Os -fomit-frame-pointer`	20180820	20180818
7179	`e/v3`	`gcc -m32 -march=core2 -msse4.1 -Os -fomit-frame-pointer`	20180820	20180818
7191	`e/v3`	`gcc -funroll-loops -m32 -march=prescott -Os -fomit-frame-pointer`	20180820	20180818
7191	`e/v3`	`gcc -m32 -march=core2 -msse4 -Os -fomit-frame-pointer`	20180820	20180818
7201	`e/v3`	`gcc -funroll-loops -m32 -march=pentium4 -Os -fomit-frame-pointer`	20180820	20180818
7201	`e/v3`	`gcc -m32 -march=prescott -Os -fomit-frame-pointer`	20180820	20180818
7209	`e/v3`	`gcc -m32 -march=nocona -Os -fomit-frame-pointer`	20180820	20180818
7212	`e/v3`	`gcc -funroll-loops -m32 -march=k8 -Os -fomit-frame-pointer`	20180820	20180818
7218	`e/v3`	`gcc -m32 -march=core2 -Os -fomit-frame-pointer`	20180820	20180818
7219	`e/v3`	`gcc -m32 -march=pentium4 -Os -fomit-frame-pointer`	20180820	20180818
7220	`e/v3`	`gcc -funroll-loops -m32 -march=nocona -Os -fomit-frame-pointer`	20180820	20180818
7280	`e/v3`	`gcc -m32 -march=k8 -Os -fomit-frame-pointer`	20180820	20180818
7352	`e/v3`	`gcc -funroll-loops -m32 -march=pentium-m -Os -fomit-frame-pointer`	20180820	20180818
7353	`e/v3`	`gcc -m32 -march=pentium-m -Os -fomit-frame-pointer`	20180820	20180818
8448	`e/v3`	`gcc -funroll-loops -m32 -O2 -fomit-frame-pointer`	20180820	20180818
8466	`e/v3`	`gcc -funroll-loops -m32 -march=athlon -O2 -fomit-frame-pointer`	20180820	20180818
8466	`e/v3`	`gcc -funroll-loops -m32 -march=pentiumpro -O2 -fomit-frame-pointer`	20180820	20180818
8488	`e/v3`	`gcc -funroll-loops -m32 -march=pentium2 -O2 -fomit-frame-pointer`	20180820	20180818
8496	`e/v3`	`gcc -m32 -march=k6-2 -O3 -fomit-frame-pointer`	20180820	20180818
8511	`e/v3`	`gcc -m32 -march=k6 -O3 -fomit-frame-pointer`	20180820	20180818
8516	`e/v3`	`gcc -m32 -march=k6-3 -O3 -fomit-frame-pointer`	20180820	20180818
8579	`e/v3`	`gcc -m32 -O3 -fomit-frame-pointer`	20180820	20180818
8599	`e/v3`	`gcc -m32 -march=athlon -O3 -fomit-frame-pointer`	20180820	20180818
8601	`e/v3`	`gcc -m32 -march=pentiumpro -O3 -fomit-frame-pointer`	20180820	20180818
8621	`e/v3`	`gcc -funroll-loops -m32 -march=k6-2 -O2 -fomit-frame-pointer`	20180820	20180818
8623	`e/v3`	`gcc -funroll-loops -m32 -march=athlon -O3 -fomit-frame-pointer`	20180820	20180818
8623	`e/v3`	`gcc -funroll-loops -m32 -march=k6 -O3 -fomit-frame-pointer`	20180820	20180818
8627	`e/v3`	`gcc -funroll-loops -m32 -march=k6-3 -O3 -fomit-frame-pointer`	20180820	20180818
8629	`e/v3`	`gcc -funroll-loops -m32 -march=k6-3 -O2 -fomit-frame-pointer`	20180820	20180818
8636	`e/v3`	`gcc -m32 -march=pentium2 -O3 -fomit-frame-pointer`	20180820	20180818
8653	`e/v3`	`gcc -funroll-loops -m32 -march=k6 -O2 -fomit-frame-pointer`	20180820	20180818
8655	`e/v3`	`gcc -funroll-loops -m32 -march=pentium2 -O3 -fomit-frame-pointer`	20180820	20180818
8659	`e/v3`	`gcc -funroll-loops -m32 -O3 -fomit-frame-pointer`	20180820	20180818
8677	`e/v3`	`gcc -funroll-loops -m32 -march=k6-2 -O3 -fomit-frame-pointer`	20180820	20180818
8685	`e/v3`	`gcc -funroll-loops -m32 -O -fomit-frame-pointer`	20180820	20180818
8714	`e/v3`	`gcc -funroll-loops -m32 -march=athlon -O -fomit-frame-pointer`	20180820	20180818
8728	`e/v3`	`gcc -funroll-loops -m32 -march=pentiumpro -O3 -fomit-frame-pointer`	20180820	20180818
8758	`e/v3`	`gcc -funroll-loops -m32 -march=i386 -O -fomit-frame-pointer`	20180820	20180818
8776	`e/v3`	`gcc -funroll-loops -m32 -march=i486 -O -fomit-frame-pointer`	20180820	20180818
8825	`e/v3`	`gcc -funroll-loops -m32 -march=k6-3 -O -fomit-frame-pointer`	20180820	20180818
8845	`e/v3`	`gcc -funroll-loops -m32 -march=k6 -O -fomit-frame-pointer`	20180820	20180818
8848	`e/v3`	`gcc -funroll-loops -m32 -march=pentium2 -O -fomit-frame-pointer`	20180820	20180818
8849	`e/v3`	`gcc -funroll-loops -m32 -march=pentium -O -fomit-frame-pointer`	20180820	20180818
8855	`e/v3`	`gcc -funroll-loops -m32 -march=k6-2 -O -fomit-frame-pointer`	20180820	20180818
8865	`e/v3`	`gcc -funroll-loops -m32 -march=pentium-mmx -O -fomit-frame-pointer`	20180820	20180818
8891	`e/v3`	`gcc -funroll-loops -m32 -march=pentiumpro -O -fomit-frame-pointer`	20180820	20180818
8948	`e/v3`	`gcc -funroll-loops -m32 -march=pentium-mmx -O2 -fomit-frame-pointer`	20180820	20180818
8980	`e/v3`	`gcc -funroll-loops -m32 -march=pentium -O2 -fomit-frame-pointer`	20180820	20180818
9026	`e/v3`	`gcc -m32 -march=pentium-mmx -O3 -fomit-frame-pointer`	20180820	20180818
9061	`e/v3`	`gcc -m32 -march=i386 -O3 -fomit-frame-pointer`	20180820	20180818
9064	`e/v3`	`gcc -m32 -march=pentium -O3 -fomit-frame-pointer`	20180820	20180818
9085	`e/v3`	`gcc -funroll-loops -m32 -march=i386 -O2 -fomit-frame-pointer`	20180820	20180818
9092	`e/v3`	`gcc -m32 -march=i486 -O3 -fomit-frame-pointer`	20180820	20180818
9107	`e/v3`	`gcc -funroll-loops -m32 -march=pentium -O3 -fomit-frame-pointer`	20180820	20180818
9125	`e/v3`	`gcc -funroll-loops -m32 -march=i486 -O2 -fomit-frame-pointer`	20180820	20180818
9166	`e/v3`	`gcc -funroll-loops -m32 -march=pentium-mmx -O3 -fomit-frame-pointer`	20180820	20180818
9190	`e/v3`	`gcc -funroll-loops -m32 -march=i386 -O3 -fomit-frame-pointer`	20180820	20180818
9266	`e/v3`	`gcc -funroll-loops -m32 -march=i486 -O3 -fomit-frame-pointer`	20180820	20180818
10013	`e/v3`	`gcc -m32 -march=athlon -O2 -fomit-frame-pointer`	20180820	20180818
10148	`e/v3`	`gcc -m32 -O2 -fomit-frame-pointer`	20180820	20180818
10163	`e/v3`	`gcc -m32 -march=pentiumpro -O2 -fomit-frame-pointer`	20180820	20180818
10240	`e/v3`	`gcc -m32 -march=pentium2 -O2 -fomit-frame-pointer`	20180820	20180818
10324	`e/v3`	`gcc -m32 -march=k6-2 -O2 -fomit-frame-pointer`	20180820	20180818
10339	`e/v3`	`gcc -m32 -march=k6 -O2 -fomit-frame-pointer`	20180820	20180818
10345	`e/v3`	`gcc -m32 -march=k6-3 -O2 -fomit-frame-pointer`	20180820	20180818
10530	`e/v3`	`gcc -m32 -march=pentium-mmx -O2 -fomit-frame-pointer`	20180820	20180818
10545	`e/v3`	`gcc -m32 -O -fomit-frame-pointer`	20180820	20180818
10553	`e/v3`	`gcc -m32 -march=pentium -O2 -fomit-frame-pointer`	20180820	20180818
10565	`e/v3`	`gcc -m32 -march=pentium -O -fomit-frame-pointer`	20180820	20180818
10589	`e/v3`	`gcc -m32 -march=pentium-mmx -O -fomit-frame-pointer`	20180820	20180818
10625	`e/v3`	`gcc -m32 -march=k6 -O -fomit-frame-pointer`	20180820	20180818
10627	`e/v3`	`gcc -m32 -march=k6-2 -O -fomit-frame-pointer`	20180820	20180818
10633	`e/v3`	`gcc -m32 -march=k6-3 -O -fomit-frame-pointer`	20180820	20180818
10668	`e/v3`	`gcc -m32 -march=pentiumpro -O -fomit-frame-pointer`	20180820	20180818
10688	`e/v3`	`gcc -m32 -march=i486 -O -fomit-frame-pointer`	20180820	20180818
10704	`e/v3`	`gcc -m32 -march=athlon -O -fomit-frame-pointer`	20180820	20180818
10730	`e/v3`	`gcc -m32 -march=pentium2 -O -fomit-frame-pointer`	20180820	20180818
10761	`e/v3`	`gcc -m32 -march=i386 -O2 -fomit-frame-pointer`	20180820	20180818
10788	`e/v3`	`gcc -m32 -march=i386 -O -fomit-frame-pointer`	20180820	20180818
10907	`e/v3`	`gcc -m32 -march=i486 -O2 -fomit-frame-pointer`	20180820	20180818
11452	`e/v3`	`gcc -m32 -Os -fomit-frame-pointer`	20180820	20180818
11472	`e/v3`	`gcc -m32 -march=athlon -Os -fomit-frame-pointer`	20180820	20180818
11478	`e/v3`	`gcc -funroll-loops -m32 -Os -fomit-frame-pointer`	20180820	20180818
11490	`e/v3`	`gcc -funroll-loops -m32 -march=athlon -Os -fomit-frame-pointer`	20180820	20180818
11599	`e/v3`	`gcc -m32 -march=pentium -Os -fomit-frame-pointer`	20180820	20180818
11623	`e/v3`	`gcc -funroll-loops -m32 -march=pentium -Os -fomit-frame-pointer`	20180820	20180818
11641	`e/v3`	`gcc -m32 -march=pentium-mmx -Os -fomit-frame-pointer`	20180820	20180818
11659	`e/v3`	`gcc -funroll-loops -m32 -march=pentium-mmx -Os -fomit-frame-pointer`	20180820	20180818
11699	`e/v3`	`gcc -funroll-loops -m32 -march=k6-2 -Os -fomit-frame-pointer`	20180820	20180818
11732	`e/v3`	`gcc -m32 -march=i386 -Os -fomit-frame-pointer`	20180820	20180818
11734	`e/v3`	`gcc -funroll-loops -m32 -march=k6-3 -Os -fomit-frame-pointer`	20180820	20180818
11734	`e/v3`	`gcc -funroll-loops -m32 -march=k6 -Os -fomit-frame-pointer`	20180820	20180818
11735	`e/v3`	`gcc -m32 -march=k6-2 -Os -fomit-frame-pointer`	20180820	20180818
11736	`e/v3`	`gcc -funroll-loops -m32 -march=i386 -Os -fomit-frame-pointer`	20180820	20180818
11742	`e/v3`	`gcc -m32 -march=i486 -Os -fomit-frame-pointer`	20180820	20180818
11752	`e/v3`	`gcc -m32 -march=k6 -Os -fomit-frame-pointer`	20180820	20180818
11758	`e/v3`	`gcc -m32 -march=k6-3 -Os -fomit-frame-pointer`	20180820	20180818
11760	`e/v3`	`gcc -funroll-loops -m32 -march=i486 -Os -fomit-frame-pointer`	20180820	20180818
12226	`e/v3`	`gcc -funroll-loops -m32 -march=pentium2 -Os -fomit-frame-pointer`	20180820	20180818
12240	`e/v3`	`gcc -m32 -march=pentium2 -Os -fomit-frame-pointer`	20180820	20180818
12246	`e/v3`	`gcc -m32 -march=pentiumpro -Os -fomit-frame-pointer`	20180820	20180818
12293	`e/v3`	`gcc -funroll-loops -m32 -march=pentiumpro -Os -fomit-frame-pointer`	20180820	20180818

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/benchmarking/supercop-20180818/supercop-data/kizomba/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:1290:1: 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/benchmarking/supercop-20180818/supercop-data/kizomba/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:1290:1: 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