Implementation notes: x86, hiphop, crypto_stream/cryptmtv3

Computer: hiphop
Architecture: x86
CPU ID: GenuineIntel-000306c3-bfebfbff
SUPERCOP version: 20171218
Operation: crypto_stream
Primitive: cryptmtv3

Time	Implementation	Compiler	Benchmark date	SUPERCOP version
6404	`e/v3`	`gcc -funroll-loops -m32 -march=pentium4 -O2 -fomit-frame-pointer`	20170906	20170904
6436	`e/v3`	`gcc -funroll-loops -m32 -march=nocona -O2 -fomit-frame-pointer`	20170906	20170904
6436	`e/v3`	`gcc -funroll-loops -m32 -march=prescott -O2 -fomit-frame-pointer`	20170906	20170904
6484	`e/v3`	`gcc -funroll-loops -m32 -march=nocona -O3 -fomit-frame-pointer`	20170906	20170904
6488	`e/v3`	`gcc -funroll-loops -m32 -march=prescott -O3 -fomit-frame-pointer`	20170906	20170904
6516	`e/v3`	`gcc -funroll-loops -m32 -march=pentium4 -O3 -fomit-frame-pointer`	20170906	20170904
6564	`e/v3`	`gcc -funroll-loops -m32 -march=barcelona -O -fomit-frame-pointer`	20170906	20170904
6580	`e/v3`	`gcc -funroll-loops -m32 -march=pentium-m -O2 -fomit-frame-pointer`	20170906	20170904
6584	`e/v3`	`gcc -funroll-loops -m32 -march=prescott -O -fomit-frame-pointer`	20170906	20170904
6588	`e/v3`	`gcc -funroll-loops -m32 -march=k8 -O -fomit-frame-pointer`	20170906	20170904
6592	`e/v3`	`gcc -funroll-loops -m32 -march=pentium-m -O -fomit-frame-pointer`	20170906	20170904
6608	`e/v3`	`gcc -funroll-loops -m32 -march=pentium4 -O -fomit-frame-pointer`	20170906	20170904
6612	`e/v3`	`gcc -funroll-loops -m32 -march=nocona -O -fomit-frame-pointer`	20170906	20170904
6612	`e/v3`	`gcc -funroll-loops -m32 -march=pentium-m -O3 -fomit-frame-pointer`	20170906	20170904
6628	`e/v3`	`gcc -funroll-loops -m32 -march=k8 -O2 -fomit-frame-pointer`	20170906	20170904
6668	`e/v3`	`gcc -funroll-loops -m32 -march=barcelona -O2 -fomit-frame-pointer`	20170906	20170904
6696	`e/v3`	`gcc -funroll-loops -m32 -march=k8 -O3 -fomit-frame-pointer`	20170906	20170904
6772	`e/v3`	`gcc -funroll-loops -m32 -march=barcelona -O3 -fomit-frame-pointer`	20170906	20170904
6872	`e/v3`	`gcc -m32 -march=corei7 -O3 -fomit-frame-pointer`	20170906	20170904
6896	`e/v3`	`gcc -m32 -march=core2 -msse4 -O3 -fomit-frame-pointer`	20170906	20170904
6900	`e/v3`	`gcc -m32 -march=prescott -O3 -fomit-frame-pointer`	20170906	20170904
6904	`e/v3`	`gcc -m32 -march=nocona -O3 -fomit-frame-pointer`	20170906	20170904
6908	`e/v3`	`gcc -m32 -march=pentium4 -O2 -fomit-frame-pointer`	20170906	20170904
6916	`e/v3`	`gcc -m32 -march=native -mtune=native -O3 -fomit-frame-pointer`	20170906	20170904
6920	`e/v3`	`gcc -m32 -march=core2 -O2 -fomit-frame-pointer`	20170906	20170904
6920	`e/v3`	`gcc -m32 -march=core2 -msse4.1 -O3 -fomit-frame-pointer`	20170906	20170904
6920	`e/v3`	`gcc -m32 -march=core2 -msse4 -O2 -fomit-frame-pointer`	20170906	20170904
6924	`e/v3`	`gcc -m32 -march=core-avx-i -O3 -fomit-frame-pointer`	20170906	20170904
6924	`e/v3`	`gcc -m32 -march=core2 -O3 -fomit-frame-pointer`	20170906	20170904
6924	`e/v3`	`gcc -m32 -march=pentium4 -O3 -fomit-frame-pointer`	20170906	20170904
6928	`e/v3`	`gcc -m32 -march=nocona -O2 -fomit-frame-pointer`	20170906	20170904
6932	`e/v3`	`gcc -m32 -march=corei7-avx -O3 -fomit-frame-pointer`	20170906	20170904
6932	`e/v3`	`gcc -m32 -march=corei7 -O2 -fomit-frame-pointer`	20170906	20170904
6936	`e/v3`	`gcc -m32 -march=prescott -O2 -fomit-frame-pointer`	20170906	20170904
6948	`e/v3`	`gcc -m32 -march=core-avx-i -O2 -fomit-frame-pointer`	20170906	20170904
6948	`e/v3`	`gcc -m32 -march=corei7-avx -O2 -fomit-frame-pointer`	20170906	20170904
6952	`e/v3`	`gcc -m32 -march=core-avx2 -O3 -fomit-frame-pointer`	20170906	20170904
6956	`e/v3`	`gcc -m32 -march=native -mtune=native -O2 -fomit-frame-pointer`	20170906	20170904
6960	`e/v3`	`gcc -m32 -march=core-avx2 -O2 -fomit-frame-pointer`	20170906	20170904
6960	`e/v3`	`gcc -m32 -march=k8 -O2 -fomit-frame-pointer`	20170906	20170904
6976	`e/v3`	`gcc -m32 -march=core2 -msse4.1 -O2 -fomit-frame-pointer`	20170906	20170904
6984	`e/v3`	`gcc -m32 -march=pentium4 -O -fomit-frame-pointer`	20170906	20170904
7000	`e/v3`	`gcc -m32 -march=nocona -O -fomit-frame-pointer`	20170906	20170904
7000	`e/v3`	`gcc -m32 -march=prescott -O -fomit-frame-pointer`	20170906	20170904
7008	`e/v3`	`gcc -m32 -march=barcelona -O -fomit-frame-pointer`	20170906	20170904
7012	`e/v3`	`gcc -m32 -march=core2 -O -fomit-frame-pointer`	20170906	20170904
7016	`e/v3`	`gcc -m32 -march=corei7 -O -fomit-frame-pointer`	20170906	20170904
7020	`e/v3`	`gcc -m32 -march=native -mtune=native -O -fomit-frame-pointer`	20170906	20170904
7028	`e/v3`	`gcc -m32 -march=core2 -msse4.1 -O -fomit-frame-pointer`	20170906	20170904
7032	`e/v3`	`gcc -m32 -march=core-avx2 -O -fomit-frame-pointer`	20170906	20170904
7036	`e/v3`	`gcc -m32 -march=k8 -O -fomit-frame-pointer`	20170906	20170904
7040	`e/v3`	`gcc -m32 -march=core2 -msse4 -O -fomit-frame-pointer`	20170906	20170904
7040	`e/v3`	`gcc -m32 -march=corei7-avx -O -fomit-frame-pointer`	20170906	20170904
7044	`e/v3`	`gcc -m32 -march=core-avx-i -O -fomit-frame-pointer`	20170906	20170904
7072	`e/v3`	`gcc -m32 -march=pentium-m -O -fomit-frame-pointer`	20170906	20170904
7092	`e/v3`	`gcc -m32 -march=k8 -O3 -fomit-frame-pointer`	20170906	20170904
7096	`e/v3`	`gcc -m32 -march=pentium-m -O3 -fomit-frame-pointer`	20170906	20170904
7176	`e/v3`	`gcc -m32 -march=pentium-m -O2 -fomit-frame-pointer`	20170906	20170904
7196	`e/v3`	`gcc -m32 -march=core-avx-i -Os -fomit-frame-pointer`	20170906	20170904
7200	`e/v3`	`gcc -m32 -march=native -mtune=native -Os -fomit-frame-pointer`	20170906	20170904
7204	`e/v3`	`gcc -m32 -march=corei7-avx -Os -fomit-frame-pointer`	20170906	20170904
7208	`e/v3`	`gcc -m32 -march=barcelona -O2 -fomit-frame-pointer`	20170906	20170904
7212	`e/v3`	`gcc -m32 -march=barcelona -O3 -fomit-frame-pointer`	20170906	20170904
7212	`e/v3`	`gcc -m32 -march=core-avx2 -Os -fomit-frame-pointer`	20170906	20170904
7276	`e/v3`	`gcc -m32 -march=nocona -Os -fomit-frame-pointer`	20170906	20170904
7292	`e/v3`	`gcc -funroll-loops -m32 -march=nocona -Os -fomit-frame-pointer`	20170906	20170904
7292	`e/v3`	`gcc -m32 -march=prescott -Os -fomit-frame-pointer`	20170906	20170904
7304	`e/v3`	`gcc -funroll-loops -m32 -march=prescott -Os -fomit-frame-pointer`	20170906	20170904
7308	`e/v3`	`gcc -m32 -march=core2 -msse4.1 -Os -fomit-frame-pointer`	20170906	20170904
7312	`e/v3`	`gcc -m32 -march=core2 -msse4 -Os -fomit-frame-pointer`	20170906	20170904
7312	`e/v3`	`gcc -m32 -march=corei7 -Os -fomit-frame-pointer`	20170906	20170904
7316	`e/v3`	`gcc -m32 -march=core2 -Os -fomit-frame-pointer`	20170906	20170904
7356	`e/v3`	`gcc -funroll-loops -m32 -march=pentium4 -Os -fomit-frame-pointer`	20170906	20170904
7360	`e/v3`	`gcc -m32 -march=pentium4 -Os -fomit-frame-pointer`	20170906	20170904
7452	`e/v3`	`gcc -funroll-loops -m32 -march=k8 -Os -fomit-frame-pointer`	20170906	20170904
7488	`e/v3`	`gcc -m32 -march=k8 -Os -fomit-frame-pointer`	20170906	20170904
7556	`e/v3`	`gcc -funroll-loops -m32 -march=barcelona -Os -fomit-frame-pointer`	20170906	20170904
7588	`e/v3`	`gcc -m32 -march=barcelona -Os -fomit-frame-pointer`	20170906	20170904
7672	`e/v3`	`gcc -funroll-loops -m32 -march=pentium-m -Os -fomit-frame-pointer`	20170906	20170904
7680	`e/v3`	`gcc -m32 -march=pentium-m -Os -fomit-frame-pointer`	20170906	20170904
9500	`e/v3`	`gcc -m32 -O3 -fomit-frame-pointer`	20170906	20170904
9512	`e/v3`	`gcc -funroll-loops -m32 -O3 -fomit-frame-pointer`	20170906	20170904
9644	`e/v3`	`gcc -funroll-loops -m32 -march=athlon -O2 -fomit-frame-pointer`	20170906	20170904
9652	`e/v3`	`gcc -funroll-loops -m32 -O2 -fomit-frame-pointer`	20170906	20170904
9668	`e/v3`	`gcc -funroll-loops -m32 -march=i386 -O2 -fomit-frame-pointer`	20170906	20170904
9688	`e/v3`	`gcc -funroll-loops -m32 -march=athlon -O -fomit-frame-pointer`	20170906	20170904
9700	`e/v3`	`gcc -funroll-loops -m32 -march=i486 -O3 -fomit-frame-pointer`	20170906	20170904
9708	`e/v3`	`gcc -funroll-loops -m32 -march=athlon -O3 -fomit-frame-pointer`	20170906	20170904
9720	`e/v3`	`gcc -funroll-loops -m32 -march=i486 -O2 -fomit-frame-pointer`	20170906	20170904
9728	`e/v3`	`gcc -funroll-loops -m32 -march=pentium -O3 -fomit-frame-pointer`	20170906	20170904
9732	`e/v3`	`gcc -funroll-loops -m32 -march=pentium-mmx -O3 -fomit-frame-pointer`	20170906	20170904
9752	`e/v3`	`gcc -m32 -march=athlon -O3 -fomit-frame-pointer`	20170906	20170904
9760	`e/v3`	`gcc -m32 -march=i386 -O3 -fomit-frame-pointer`	20170906	20170904
9776	`e/v3`	`gcc -funroll-loops -m32 -march=i386 -O3 -fomit-frame-pointer`	20170906	20170904
9792	`e/v3`	`gcc -m32 -march=i486 -O3 -fomit-frame-pointer`	20170906	20170904
9828	`e/v3`	`gcc -funroll-loops -m32 -march=i486 -O -fomit-frame-pointer`	20170906	20170904
9844	`e/v3`	`gcc -funroll-loops -m32 -march=pentium-mmx -O2 -fomit-frame-pointer`	20170906	20170904
9848	`e/v3`	`gcc -funroll-loops -m32 -march=i386 -O -fomit-frame-pointer`	20170906	20170904
9856	`e/v3`	`gcc -funroll-loops -m32 -O -fomit-frame-pointer`	20170906	20170904
9860	`e/v3`	`gcc -funroll-loops -m32 -march=pentium2 -O3 -fomit-frame-pointer`	20170906	20170904
9860	`e/v3`	`gcc -funroll-loops -m32 -march=pentiumpro -O3 -fomit-frame-pointer`	20170906	20170904
9864	`e/v3`	`gcc -funroll-loops -m32 -march=pentium -O2 -fomit-frame-pointer`	20170906	20170904
9880	`e/v3`	`gcc -funroll-loops -m32 -march=pentium -O -fomit-frame-pointer`	20170906	20170904
9888	`e/v3`	`gcc -funroll-loops -m32 -march=pentium-mmx -O -fomit-frame-pointer`	20170906	20170904
9892	`e/v3`	`gcc -m32 -march=pentium -O3 -fomit-frame-pointer`	20170906	20170904
9908	`e/v3`	`gcc -m32 -march=k6 -O3 -fomit-frame-pointer`	20170906	20170904
9916	`e/v3`	`gcc -funroll-loops -m32 -march=k6 -O3 -fomit-frame-pointer`	20170906	20170904
9916	`e/v3`	`gcc -m32 -march=pentium-mmx -O3 -fomit-frame-pointer`	20170906	20170904
9916	`e/v3`	`gcc -m32 -march=pentiumpro -O3 -fomit-frame-pointer`	20170906	20170904
9920	`e/v3`	`gcc -m32 -march=k6-2 -O3 -fomit-frame-pointer`	20170906	20170904
9920	`e/v3`	`gcc -m32 -march=k6-3 -O3 -fomit-frame-pointer`	20170906	20170904
9948	`e/v3`	`gcc -funroll-loops -m32 -march=k6-3 -O3 -fomit-frame-pointer`	20170906	20170904
9968	`e/v3`	`gcc -funroll-loops -m32 -march=k6-2 -O3 -fomit-frame-pointer`	20170906	20170904
9976	`e/v3`	`gcc -funroll-loops -m32 -march=k6-3 -O2 -fomit-frame-pointer`	20170906	20170904
9976	`e/v3`	`gcc -funroll-loops -m32 -march=k6-3 -O -fomit-frame-pointer`	20170906	20170904
9976	`e/v3`	`gcc -funroll-loops -m32 -march=pentiumpro -O -fomit-frame-pointer`	20170906	20170904
9988	`e/v3`	`gcc -funroll-loops -m32 -march=k6 -O2 -fomit-frame-pointer`	20170906	20170904
9996	`e/v3`	`gcc -funroll-loops -m32 -march=pentium2 -O -fomit-frame-pointer`	20170906	20170904
10000	`e/v3`	`gcc -funroll-loops -m32 -march=k6 -O -fomit-frame-pointer`	20170906	20170904
10012	`e/v3`	`gcc -funroll-loops -m32 -march=k6-2 -O2 -fomit-frame-pointer`	20170906	20170904
10032	`e/v3`	`gcc -funroll-loops -m32 -march=pentiumpro -O2 -fomit-frame-pointer`	20170906	20170904
10032	`e/v3`	`gcc -m32 -march=pentium2 -O3 -fomit-frame-pointer`	20170906	20170904
10052	`e/v3`	`gcc -funroll-loops -m32 -march=pentium2 -O2 -fomit-frame-pointer`	20170906	20170904
10144	`e/v3`	`gcc -funroll-loops -m32 -march=k6-2 -O -fomit-frame-pointer`	20170906	20170904
11184	`e/v3`	`gcc -m32 -O2 -fomit-frame-pointer`	20170906	20170904
11304	`e/v3`	`gcc -m32 -march=athlon -O2 -fomit-frame-pointer`	20170906	20170904
11464	`e/v3`	`gcc -m32 -march=i486 -O2 -fomit-frame-pointer`	20170906	20170904
11520	`e/v3`	`gcc -m32 -march=i386 -O2 -fomit-frame-pointer`	20170906	20170904
11588	`e/v3`	`gcc -m32 -march=pentium -O2 -fomit-frame-pointer`	20170906	20170904
11636	`e/v3`	`gcc -m32 -march=pentium-mmx -O2 -fomit-frame-pointer`	20170906	20170904
11752	`e/v3`	`gcc -m32 -march=pentium2 -O2 -fomit-frame-pointer`	20170906	20170904
11756	`e/v3`	`gcc -m32 -march=k6-3 -O2 -fomit-frame-pointer`	20170906	20170904
11772	`e/v3`	`gcc -m32 -march=pentiumpro -O2 -fomit-frame-pointer`	20170906	20170904
11784	`e/v3`	`gcc -m32 -Os -fomit-frame-pointer`	20170906	20170904
11788	`e/v3`	`gcc -m32 -march=k6 -O2 -fomit-frame-pointer`	20170906	20170904
11796	`e/v3`	`gcc -funroll-loops -m32 -march=pentium-mmx -Os -fomit-frame-pointer`	20170906	20170904
11800	`e/v3`	`gcc -m32 -march=k6-2 -O2 -fomit-frame-pointer`	20170906	20170904
11804	`e/v3`	`gcc -funroll-loops -m32 -Os -fomit-frame-pointer`	20170906	20170904
11812	`e/v3`	`gcc -m32 -march=pentium -Os -fomit-frame-pointer`	20170906	20170904
11816	`e/v3`	`gcc -m32 -march=pentium-mmx -Os -fomit-frame-pointer`	20170906	20170904
11828	`e/v3`	`gcc -funroll-loops -m32 -march=pentium -Os -fomit-frame-pointer`	20170906	20170904
11832	`e/v3`	`gcc -funroll-loops -m32 -march=k6 -Os -fomit-frame-pointer`	20170906	20170904
11856	`e/v3`	`gcc -funroll-loops -m32 -march=athlon -Os -fomit-frame-pointer`	20170906	20170904
11856	`e/v3`	`gcc -funroll-loops -m32 -march=k6-3 -Os -fomit-frame-pointer`	20170906	20170904
11896	`e/v3`	`gcc -m32 -march=athlon -Os -fomit-frame-pointer`	20170906	20170904
11904	`e/v3`	`gcc -m32 -march=i486 -O -fomit-frame-pointer`	20170906	20170904
11924	`e/v3`	`gcc -m32 -march=k6-3 -Os -fomit-frame-pointer`	20170906	20170904
11932	`e/v3`	`gcc -funroll-loops -m32 -march=i486 -Os -fomit-frame-pointer`	20170906	20170904
11940	`e/v3`	`gcc -m32 -march=i386 -O -fomit-frame-pointer`	20170906	20170904
11940	`e/v3`	`gcc -m32 -march=k6-2 -Os -fomit-frame-pointer`	20170906	20170904
11940	`e/v3`	`gcc -m32 -march=k6 -Os -fomit-frame-pointer`	20170906	20170904
11944	`e/v3`	`gcc -m32 -march=pentium -O -fomit-frame-pointer`	20170906	20170904
11952	`e/v3`	`gcc -m32 -march=pentium-mmx -O -fomit-frame-pointer`	20170906	20170904
11956	`e/v3`	`gcc -funroll-loops -m32 -march=k6-2 -Os -fomit-frame-pointer`	20170906	20170904
11968	`e/v3`	`gcc -m32 -march=i386 -Os -fomit-frame-pointer`	20170906	20170904
11972	`e/v3`	`gcc -funroll-loops -m32 -march=i386 -Os -fomit-frame-pointer`	20170906	20170904
11972	`e/v3`	`gcc -m32 -march=i486 -Os -fomit-frame-pointer`	20170906	20170904
12180	`e/v3`	`gcc -funroll-loops -m32 -march=pentiumpro -Os -fomit-frame-pointer`	20170906	20170904
12204	`e/v3`	`gcc -m32 -march=pentiumpro -Os -fomit-frame-pointer`	20170906	20170904
12216	`e/v3`	`gcc -funroll-loops -m32 -march=pentium2 -Os -fomit-frame-pointer`	20170906	20170904
12232	`e/v3`	`gcc -m32 -march=pentium2 -Os -fomit-frame-pointer`	20170906	20170904
12600	`e/v3`	`gcc -m32 -march=athlon -O -fomit-frame-pointer`	20170906	20170904
12688	`e/v3`	`gcc -m32 -march=pentiumpro -O -fomit-frame-pointer`	20170906	20170904
12696	`e/v3`	`gcc -m32 -O -fomit-frame-pointer`	20170906	20170904
12736	`e/v3`	`gcc -m32 -march=pentium2 -O -fomit-frame-pointer`	20170906	20170904
12828	`e/v3`	`gcc -m32 -march=k6-2 -O -fomit-frame-pointer`	20170906	20170904
12832	`e/v3`	`gcc -m32 -march=k6 -O -fomit-frame-pointer`	20170906	20170904
12944	`e/v3`	`gcc -m32 -march=k6-3 -O -fomit-frame-pointer`	20170906	20170904

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/5/include/xmmintrin.h:1249:0,
cryptmt-v3.c: from /home/djb/benchmarking/supercop-20170904/supercop-data/hiphop/x86/include/ecrypt-config.h:296,
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/5/include/emmintrin.h:1286:1: 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: error: 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/5/include/xmmintrin.h:1249:0,
cryptmt-v3.c: from /home/djb/benchmarking/supercop-20170904/supercop-data/hiphop/x86/include/ecrypt-config.h:296,
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/5/include/emmintrin.h:1286:1: 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: error: 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