Implementation notes: amd64, genji291, crypto_kem/saber

Computer: genji291
Architecture: amd64
CPU ID: GenuineIntel-00050671-bfebfbff
SUPERCOP version: 20180818
Operation: crypto_kem
Primitive: saber

Time	Object size	Test size	Implementation	Compiler	Benchmark date	SUPERCOP version
1618890	? ? ?	? ? ?	`portable`	`icc_-xCORE-AVX2_-O3_-fomit-frame-pointer`	20180821	20180818
1765806	? ? ?	? ? ?	`portable`	`icc_-xMIC-AVX512_-O2_-fomit-frame-pointer`	20180821	20180818
1818656	? ? ?	? ? ?	`portable`	`icc_-xMIC-AVX512_-O3_-fomit-frame-pointer`	20180821	20180818
1892968	? ? ?	? ? ?	`portable`	`icc_-xCOMMON-AVX512_-O2_-fomit-frame-pointer`	20180821	20180818
1936242	? ? ?	? ? ?	`portable`	`icc_-xCOMMON-AVX512_-O3_-fomit-frame-pointer`	20180821	20180818
2086980	? ? ?	? ? ?	`portable`	`icc_-xSSE4.1_-O2_-fomit-frame-pointer`	20180821	20180818
2126488	? ? ?	? ? ?	`portable`	`icc_-xCORE-AVX2_-O2_-fomit-frame-pointer`	20180821	20180818
2138808	? ? ?	? ? ?	`portable`	`icc_-xSSE4.2_-O2_-fomit-frame-pointer`	20180821	20180818
2164708	? ? ?	? ? ?	`portable`	`icc_-xSSE4.2_-O3_-fomit-frame-pointer`	20180821	20180818
2219140	? ? ?	? ? ?	`portable`	`icc_-xSSE4.1_-O3_-fomit-frame-pointer`	20180821	20180818
2354674	? ? ?	? ? ?	`ref`	`icc_-xCORE-AVX2_-O2_-fomit-frame-pointer`	20180821	20180818
2431618	? ? ?	? ? ?	`ref`	`icc_-xSSE4.1_-O2_-fomit-frame-pointer`	20180821	20180818
2436798	? ? ?	? ? ?	`ref`	`icc_-xSSE4.2_-O2_-fomit-frame-pointer`	20180821	20180818
2471126	? ? ?	? ? ?	`ref`	`icc_-xSSE4.2_-O3_-fomit-frame-pointer`	20180821	20180818
2472078	? ? ?	? ? ?	`ref`	`icc_-xCORE-AVX2_-O3_-fomit-frame-pointer`	20180821	20180818
2505006	? ? ?	? ? ?	`ref`	`icc_-xSSE4.1_-O3_-fomit-frame-pointer`	20180821	20180818
2645916	? ? ?	? ? ?	`portable`	`icc_-xCORE-AVX-I_-O2_-fomit-frame-pointer`	20180821	20180818
2666104	? ? ?	? ? ?	`portable`	`icc_-xAVX_-O2_-fomit-frame-pointer`	20180821	20180818
2706046	? ? ?	? ? ?	`portable`	`icc_-xCORE-AVX-I_-O3_-fomit-frame-pointer`	20180821	20180818
2707880	? ? ?	? ? ?	`portable`	`icc_-xAVX_-O3_-fomit-frame-pointer`	20180821	20180818
2831430	? ? ?	? ? ?	`portable`	`icc`	20180821	20180818
2943318	? ? ?	? ? ?	`ref`	`icc_-xMIC-AVX512_-O2_-fomit-frame-pointer`	20180821	20180818
2974062	? ? ?	? ? ?	`ref`	`icc_-xMIC-AVX512_-O3_-fomit-frame-pointer`	20180821	20180818
3017280	? ? ?	? ? ?	`ref`	`icc_-xCORE-AVX-I_-O2_-fomit-frame-pointer`	20180821	20180818
3053428	? ? ?	? ? ?	`ref`	`icc_-xAVX_-O2_-fomit-frame-pointer`	20180821	20180818
3116666	? ? ?	? ? ?	`ref`	`icc`	20180821	20180818
3121762	? ? ?	? ? ?	`ref`	`icc_-xCOMMON-AVX512_-O2_-fomit-frame-pointer`	20180821	20180818
3128496	? ? ?	? ? ?	`ref`	`icc_-xCORE-AVX-I_-O3_-fomit-frame-pointer`	20180821	20180818
3170384	? ? ?	? ? ?	`ref`	`icc_-xCOMMON-AVX512_-O3_-fomit-frame-pointer`	20180821	20180818
3170664	? ? ?	? ? ?	`ref`	`icc_-xAVX_-O3_-fomit-frame-pointer`	20180821	20180818
8548078	? ? ?	? ? ?	`portable`	`icc_-no-vec`	20180821	20180818
12231338	? ? ?	? ? ?	`ref`	`icc_-no-vec`	20180821	20180818

Compiler output

Implementation: portable
Security model: unknown
Compiler: cc

Number of similar (compiler,implementation) pairs: 214, namely:

Compiler	Implementations
cc	portable
gcc	portable
gcc -O2 -fomit-frame-pointer	portable
gcc -O3 -fomit-frame-pointer	portable
gcc -O -fomit-frame-pointer	portable
gcc -Os -fomit-frame-pointer	portable
gcc -fno-schedule-insns -O2 -fomit-frame-pointer	portable
gcc -fno-schedule-insns -O3 -fomit-frame-pointer	portable
gcc -fno-schedule-insns -O -fomit-frame-pointer	portable
gcc -fno-schedule-insns -Os -fomit-frame-pointer	portable
gcc -funroll-loops	portable
gcc -funroll-loops -O2 -fomit-frame-pointer	portable
gcc -funroll-loops -O3 -fomit-frame-pointer	portable
gcc -funroll-loops -O -fomit-frame-pointer	portable
gcc -funroll-loops -Os -fomit-frame-pointer	portable
gcc -funroll-loops -fno-schedule-insns -O2 -fomit-frame-pointer	portable
gcc -funroll-loops -fno-schedule-insns -O3 -fomit-frame-pointer	portable
gcc -funroll-loops -fno-schedule-insns -O -fomit-frame-pointer	portable
gcc -funroll-loops -fno-schedule-insns -Os -fomit-frame-pointer	portable
gcc -funroll-loops -m64 -O2 -fomit-frame-pointer	portable
gcc -funroll-loops -m64 -O3 -fomit-frame-pointer	portable
gcc -funroll-loops -m64 -O -fomit-frame-pointer	portable
gcc -funroll-loops -m64 -Os -fomit-frame-pointer	portable
gcc -funroll-loops -m64 -march=barcelona -O2 -fomit-frame-pointer	portable
gcc -funroll-loops -m64 -march=barcelona -O3 -fomit-frame-pointer	portable
gcc -funroll-loops -m64 -march=barcelona -O -fomit-frame-pointer	portable
gcc -funroll-loops -m64 -march=barcelona -Os -fomit-frame-pointer	portable
gcc -funroll-loops -m64 -march=k8 -O2 -fomit-frame-pointer	portable
gcc -funroll-loops -m64 -march=k8 -O3 -fomit-frame-pointer	portable
gcc -funroll-loops -m64 -march=k8 -O -fomit-frame-pointer	portable
gcc -funroll-loops -m64 -march=k8 -Os -fomit-frame-pointer	portable
gcc -funroll-loops -m64 -march=nocona -O2 -fomit-frame-pointer	portable
gcc -funroll-loops -m64 -march=nocona -O3 -fomit-frame-pointer	portable
gcc -funroll-loops -m64 -march=nocona -O -fomit-frame-pointer	portable
gcc -funroll-loops -m64 -march=nocona -Os -fomit-frame-pointer	portable
gcc -funroll-loops -march=barcelona -O2 -fomit-frame-pointer	portable
gcc -funroll-loops -march=barcelona -O3 -fomit-frame-pointer	portable
gcc -funroll-loops -march=barcelona -O -fomit-frame-pointer	portable
gcc -funroll-loops -march=barcelona -Os -fomit-frame-pointer	portable
gcc -funroll-loops -march=k8 -O2 -fomit-frame-pointer	portable
gcc -funroll-loops -march=k8 -O3 -fomit-frame-pointer	portable
gcc -funroll-loops -march=k8 -O -fomit-frame-pointer	portable
gcc -funroll-loops -march=k8 -Os -fomit-frame-pointer	portable
gcc -funroll-loops -march=nocona -O2 -fomit-frame-pointer	portable
gcc -funroll-loops -march=nocona -O3 -fomit-frame-pointer	portable
gcc -funroll-loops -march=nocona -O -fomit-frame-pointer	portable
gcc -funroll-loops -march=nocona -Os -fomit-frame-pointer	portable
gcc -m64 -O2 -fomit-frame-pointer	portable
gcc -m64 -O3 -fomit-frame-pointer	portable
gcc -m64 -O -fomit-frame-pointer	portable
gcc -m64 -Os -fomit-frame-pointer	portable
gcc -m64 -march=core-avx-i -O2 -fomit-frame-pointer	portable
gcc -m64 -march=core-avx-i -O3 -fomit-frame-pointer	portable
gcc -m64 -march=core-avx-i -O -fomit-frame-pointer	portable
gcc -m64 -march=core-avx-i -Os -fomit-frame-pointer	portable
gcc -m64 -march=core-avx2 -O2 -fomit-frame-pointer	portable
gcc -m64 -march=core-avx2 -O3 -fomit-frame-pointer	portable
gcc -m64 -march=core-avx2 -O -fomit-frame-pointer	portable
gcc -m64 -march=core-avx2 -Os -fomit-frame-pointer	portable
gcc -m64 -march=core2 -O2 -fomit-frame-pointer	portable
gcc -m64 -march=core2 -O3 -fomit-frame-pointer	portable
gcc -m64 -march=core2 -O -fomit-frame-pointer	portable
gcc -m64 -march=core2 -Os -fomit-frame-pointer	portable
gcc -m64 -march=core2 -msse4.1 -O2 -fomit-frame-pointer	portable
gcc -m64 -march=core2 -msse4.1 -O3 -fomit-frame-pointer	portable
gcc -m64 -march=core2 -msse4.1 -O -fomit-frame-pointer	portable
gcc -m64 -march=core2 -msse4.1 -Os -fomit-frame-pointer	portable
gcc -m64 -march=core2 -msse4 -O2 -fomit-frame-pointer	portable
gcc -m64 -march=core2 -msse4 -O3 -fomit-frame-pointer	portable
gcc -m64 -march=core2 -msse4 -O -fomit-frame-pointer	portable
gcc -m64 -march=core2 -msse4 -Os -fomit-frame-pointer	portable
gcc -m64 -march=corei7-avx -O2 -fomit-frame-pointer	portable
gcc -m64 -march=corei7-avx -O3 -fomit-frame-pointer	portable
gcc -m64 -march=corei7-avx -O -fomit-frame-pointer	portable
gcc -m64 -march=corei7-avx -Os -fomit-frame-pointer	portable
gcc -m64 -march=corei7 -O2 -fomit-frame-pointer	portable
gcc -m64 -march=corei7 -O3 -fomit-frame-pointer	portable
gcc -m64 -march=corei7 -O -fomit-frame-pointer	portable
gcc -m64 -march=corei7 -Os -fomit-frame-pointer	portable
gcc -m64 -march=k8 -O2 -fomit-frame-pointer	portable
gcc -m64 -march=k8 -O3 -fomit-frame-pointer	portable
gcc -m64 -march=k8 -O -fomit-frame-pointer	portable
gcc -m64 -march=k8 -Os -fomit-frame-pointer	portable
gcc -m64 -march=native -mtune=native -O2 -fomit-frame-pointer	portable
gcc -m64 -march=native -mtune=native -O3 -fomit-frame-pointer	portable
gcc -m64 -march=native -mtune=native -O -fomit-frame-pointer	portable
gcc -m64 -march=native -mtune=native -Os -fomit-frame-pointer	portable
gcc -m64 -march=nocona -O2 -fomit-frame-pointer	portable
gcc -m64 -march=nocona -O3 -fomit-frame-pointer	portable
gcc -m64 -march=nocona -O -fomit-frame-pointer	portable
gcc -m64 -march=nocona -Os -fomit-frame-pointer	portable
gcc -march=barcelona -O2 -fomit-frame-pointer	portable
gcc -march=barcelona -O3 -fomit-frame-pointer	portable
gcc -march=barcelona -O -fomit-frame-pointer	portable
gcc -march=barcelona -Os -fomit-frame-pointer	portable
gcc -march=k8 -O2 -fomit-frame-pointer	portable
gcc -march=k8 -O3 -fomit-frame-pointer	portable
gcc -march=k8 -O -fomit-frame-pointer	portable
gcc -march=k8 -Os -fomit-frame-pointer	portable
gcc -march=native -mtune=native -O2 -fomit-frame-pointer -fwrapv	portable
gcc -march=native -mtune=native -O3 -fomit-frame-pointer -fwrapv	portable
gcc -march=native -mtune=native -O -fomit-frame-pointer -fwrapv	portable
gcc -march=native -mtune=native -Os -fomit-frame-pointer -fwrapv	portable
gcc -march=nocona -O2 -fomit-frame-pointer	portable
gcc -march=nocona -O3 -fomit-frame-pointer	portable
gcc -march=nocona -O -fomit-frame-pointer	portable
gcc -march=nocona -Os -fomit-frame-pointer	portable
cc	ref
gcc	ref
gcc -O2 -fomit-frame-pointer	ref
gcc -O3 -fomit-frame-pointer	ref
gcc -O -fomit-frame-pointer	ref
gcc -Os -fomit-frame-pointer	ref
gcc -fno-schedule-insns -O2 -fomit-frame-pointer	ref
gcc -fno-schedule-insns -O3 -fomit-frame-pointer	ref
gcc -fno-schedule-insns -O -fomit-frame-pointer	ref
gcc -fno-schedule-insns -Os -fomit-frame-pointer	ref
gcc -funroll-loops	ref
gcc -funroll-loops -O2 -fomit-frame-pointer	ref
gcc -funroll-loops -O3 -fomit-frame-pointer	ref
gcc -funroll-loops -O -fomit-frame-pointer	ref
gcc -funroll-loops -Os -fomit-frame-pointer	ref
gcc -funroll-loops -fno-schedule-insns -O2 -fomit-frame-pointer	ref
gcc -funroll-loops -fno-schedule-insns -O3 -fomit-frame-pointer	ref
gcc -funroll-loops -fno-schedule-insns -O -fomit-frame-pointer	ref
gcc -funroll-loops -fno-schedule-insns -Os -fomit-frame-pointer	ref
gcc -funroll-loops -m64 -O2 -fomit-frame-pointer	ref
gcc -funroll-loops -m64 -O3 -fomit-frame-pointer	ref
gcc -funroll-loops -m64 -O -fomit-frame-pointer	ref
gcc -funroll-loops -m64 -Os -fomit-frame-pointer	ref
gcc -funroll-loops -m64 -march=barcelona -O2 -fomit-frame-pointer	ref
gcc -funroll-loops -m64 -march=barcelona -O3 -fomit-frame-pointer	ref
gcc -funroll-loops -m64 -march=barcelona -O -fomit-frame-pointer	ref
gcc -funroll-loops -m64 -march=barcelona -Os -fomit-frame-pointer	ref
gcc -funroll-loops -m64 -march=k8 -O2 -fomit-frame-pointer	ref
gcc -funroll-loops -m64 -march=k8 -O3 -fomit-frame-pointer	ref
gcc -funroll-loops -m64 -march=k8 -O -fomit-frame-pointer	ref
gcc -funroll-loops -m64 -march=k8 -Os -fomit-frame-pointer	ref
gcc -funroll-loops -m64 -march=nocona -O2 -fomit-frame-pointer	ref
gcc -funroll-loops -m64 -march=nocona -O3 -fomit-frame-pointer	ref
gcc -funroll-loops -m64 -march=nocona -O -fomit-frame-pointer	ref
gcc -funroll-loops -m64 -march=nocona -Os -fomit-frame-pointer	ref
gcc -funroll-loops -march=barcelona -O2 -fomit-frame-pointer	ref
gcc -funroll-loops -march=barcelona -O3 -fomit-frame-pointer	ref
gcc -funroll-loops -march=barcelona -O -fomit-frame-pointer	ref
gcc -funroll-loops -march=barcelona -Os -fomit-frame-pointer	ref
gcc -funroll-loops -march=k8 -O2 -fomit-frame-pointer	ref
gcc -funroll-loops -march=k8 -O3 -fomit-frame-pointer	ref
gcc -funroll-loops -march=k8 -O -fomit-frame-pointer	ref
gcc -funroll-loops -march=k8 -Os -fomit-frame-pointer	ref
gcc -funroll-loops -march=nocona -O2 -fomit-frame-pointer	ref
gcc -funroll-loops -march=nocona -O3 -fomit-frame-pointer	ref
gcc -funroll-loops -march=nocona -O -fomit-frame-pointer	ref
gcc -funroll-loops -march=nocona -Os -fomit-frame-pointer	ref
gcc -m64 -O2 -fomit-frame-pointer	ref
gcc -m64 -O3 -fomit-frame-pointer	ref
gcc -m64 -O -fomit-frame-pointer	ref
gcc -m64 -Os -fomit-frame-pointer	ref
gcc -m64 -march=core-avx-i -O2 -fomit-frame-pointer	ref
gcc -m64 -march=core-avx-i -O3 -fomit-frame-pointer	ref
gcc -m64 -march=core-avx-i -O -fomit-frame-pointer	ref
gcc -m64 -march=core-avx-i -Os -fomit-frame-pointer	ref
gcc -m64 -march=core-avx2 -O2 -fomit-frame-pointer	ref
gcc -m64 -march=core-avx2 -O3 -fomit-frame-pointer	ref
gcc -m64 -march=core-avx2 -O -fomit-frame-pointer	ref
gcc -m64 -march=core-avx2 -Os -fomit-frame-pointer	ref
gcc -m64 -march=core2 -O2 -fomit-frame-pointer	ref
gcc -m64 -march=core2 -O3 -fomit-frame-pointer	ref
gcc -m64 -march=core2 -O -fomit-frame-pointer	ref
gcc -m64 -march=core2 -Os -fomit-frame-pointer	ref
gcc -m64 -march=core2 -msse4.1 -O2 -fomit-frame-pointer	ref
gcc -m64 -march=core2 -msse4.1 -O3 -fomit-frame-pointer	ref
gcc -m64 -march=core2 -msse4.1 -O -fomit-frame-pointer	ref
gcc -m64 -march=core2 -msse4.1 -Os -fomit-frame-pointer	ref
gcc -m64 -march=core2 -msse4 -O2 -fomit-frame-pointer	ref
gcc -m64 -march=core2 -msse4 -O3 -fomit-frame-pointer	ref
gcc -m64 -march=core2 -msse4 -O -fomit-frame-pointer	ref
gcc -m64 -march=core2 -msse4 -Os -fomit-frame-pointer	ref
gcc -m64 -march=corei7-avx -O2 -fomit-frame-pointer	ref
gcc -m64 -march=corei7-avx -O3 -fomit-frame-pointer	ref
gcc -m64 -march=corei7-avx -O -fomit-frame-pointer	ref
gcc -m64 -march=corei7-avx -Os -fomit-frame-pointer	ref
gcc -m64 -march=corei7 -O2 -fomit-frame-pointer	ref
gcc -m64 -march=corei7 -O3 -fomit-frame-pointer	ref
gcc -m64 -march=corei7 -O -fomit-frame-pointer	ref
gcc -m64 -march=corei7 -Os -fomit-frame-pointer	ref
gcc -m64 -march=k8 -O2 -fomit-frame-pointer	ref
gcc -m64 -march=k8 -O3 -fomit-frame-pointer	ref
gcc -m64 -march=k8 -O -fomit-frame-pointer	ref
gcc -m64 -march=k8 -Os -fomit-frame-pointer	ref
gcc -m64 -march=native -mtune=native -O2 -fomit-frame-pointer	ref
gcc -m64 -march=native -mtune=native -O3 -fomit-frame-pointer	ref
gcc -m64 -march=native -mtune=native -O -fomit-frame-pointer	ref
gcc -m64 -march=native -mtune=native -Os -fomit-frame-pointer	ref
gcc -m64 -march=nocona -O2 -fomit-frame-pointer	ref
gcc -m64 -march=nocona -O3 -fomit-frame-pointer	ref
gcc -m64 -march=nocona -O -fomit-frame-pointer	ref
gcc -m64 -march=nocona -Os -fomit-frame-pointer	ref
gcc -march=barcelona -O2 -fomit-frame-pointer	ref
gcc -march=barcelona -O3 -fomit-frame-pointer	ref
gcc -march=barcelona -O -fomit-frame-pointer	ref
gcc -march=barcelona -Os -fomit-frame-pointer	ref
gcc -march=k8 -O2 -fomit-frame-pointer	ref
gcc -march=k8 -O3 -fomit-frame-pointer	ref
gcc -march=k8 -O -fomit-frame-pointer	ref
gcc -march=k8 -Os -fomit-frame-pointer	ref
gcc -march=native -mtune=native -O2 -fomit-frame-pointer -fwrapv	ref
gcc -march=native -mtune=native -O3 -fomit-frame-pointer -fwrapv	ref
gcc -march=native -mtune=native -O -fomit-frame-pointer -fwrapv	ref
gcc -march=native -mtune=native -Os -fomit-frame-pointer -fwrapv	ref
gcc -march=nocona -O2 -fomit-frame-pointer	ref
gcc -march=nocona -O3 -fomit-frame-pointer	ref
gcc -march=nocona -O -fomit-frame-pointer	ref
gcc -march=nocona -Os -fomit-frame-pointer	ref

Compiler output

Implementation: portable
Security model: unknown
Compiler: gcc -m64 -march=barcelona -O2 -fomit-frame-pointer

try.c: /scratch_lustre_DDN7k/bdolbeaur/supercop-20180818/supercop-data/genji291/amd64/lib/knownrandombytes.o: In function `randombytes':
try.c: knownrandombytes.c:(.text+0x...): undefined reference to `_intel_fast_memcpy'
try.c: knownrandombytes.c:(.text+0x...): undefined reference to `_intel_fast_memset'
try.c: /scratch_lustre_DDN7k/bdolbeaur/supercop-20180818/supercop-data/genji291/amd64/lib/libsupercop.a(crypto_stream_chacha20_dolbeau_amd64_avx2-api.o): In function `crypto_stream_chacha20_dolbeau_amd64_avx2':
try.c: api.c:(.text+0x...): undefined reference to `__intel_mic_avx512f_memset'
try.c: /scratch_lustre_DDN7k/bdolbeaur/supercop-20180818/supercop-data/genji291/amd64/lib/libsupercop.a(crypto_stream_chacha20_dolbeau_amd64_avx2-chacha.o): In function `crypto_stream_chacha20_dolbeau_amd64_avx2_ECRYPT_keystream_bytes':
try.c: chacha.c:(.text+0x...): undefined reference to `__intel_mic_avx512f_memset'
try.c: collect2: error: ld returned 1 exit status
try.c: /scratch_lustre_DDN7k/bdolbeaur/supercop-20180818/supercop-data/genji291/amd64/lib/knownrandombytes.o: In function `randombytes':
try.c: knownrandombytes.c:(.text+0x...): undefined reference to `_intel_fast_memcpy'
try.c: knownrandombytes.c:(.text+0x...): undefined reference to `_intel_fast_memset'
try.c: /scratch_lustre_DDN7k/bdolbeaur/supercop-20180818/supercop-data/genji291/amd64/lib/libsupercop.a(crypto_stream_chacha20_dolbeau_amd64_avx2-api.o): In function `crypto_stream_chacha20_dolbeau_amd64_avx2':
try.c: api.c:(.text+0x...): undefined reference to `__intel_mic_avx512f_memset'
try.c: /scratch_lustre_DDN7k/bdolbeaur/supercop-20180818/supercop-data/genji291/amd64/lib/libsupercop.a(crypto_stream_chacha20_dolbeau_amd64_avx2-chacha.o): In function `crypto_stream_chacha20_dolbeau_amd64_avx2_ECRYPT_keystream_bytes':
try.c: chacha.c:(.text+0x...): undefined reference to `__intel_mic_avx512f_memset'
try.c: collect2: error: ld returned 1 exit status

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

Compiler	Implementations
gcc -m64 -march=barcelona -O2 -fomit-frame-pointer	portable
gcc -m64 -march=barcelona -O3 -fomit-frame-pointer	portable
gcc -m64 -march=barcelona -O -fomit-frame-pointer	portable
gcc -m64 -march=barcelona -Os -fomit-frame-pointer	portable
gcc -m64 -march=barcelona -O2 -fomit-frame-pointer	ref
gcc -m64 -march=barcelona -O3 -fomit-frame-pointer	ref
gcc -m64 -march=barcelona -O -fomit-frame-pointer	ref
gcc -m64 -march=barcelona -Os -fomit-frame-pointer	ref