Implementation notes: amd64, gpu, crypto_encrypt/mcnie3q1922

Computer: gpu
Architecture: amd64
CPU ID: GenuineIntel-000206d7-bfebfbff
SUPERCOP version: 20190816
Operation: crypto_encrypt
Primitive: mcnie3q1922
TimeObject sizeTest sizeImplementationCompilerBenchmark dateSUPERCOP version
25236591? ? ?? ? ?refgcc_-m64_-march=core2_-O3_-fomit-frame-pointer2019101320190816
2531808961828 6 084166 808 1648refclang_-O3_-fomit-frame-pointer_-Qunused-arguments2019101320190816
25349571? ? ?? ? ?refgcc_-march=native_-mtune=native_-O3_-fomit-frame-pointer_-fwrapv2019101320190816
25618170? ? ?? ? ?refgcc_-funroll-loops_-O2_-fomit-frame-pointer2019101320190816
25668273? ? ?? ? ?refgcc_-funroll-loops_-m64_-O3_-fomit-frame-pointer2019101320190816
25672485? ? ?? ? ?refgcc_-funroll-loops_-fno-schedule-insns_-O2_-fomit-frame-pointer2019101320190816
25684089? ? ?? ? ?refgcc_-funroll-loops_-m64_-O2_-fomit-frame-pointer2019101320190816
2572384263235 6 083790 808 2000refclang_-O3_-fwrapv_-mavx_-maes_-mpclmul_-fomit-frame-pointer_-Qunused-arguments2019101320190816
25746861? ? ?? ? ?refgcc_-O3_-fomit-frame-pointer2019101320190816
2587232463235 6 083790 808 2000refclang_-O3_-fwrapv_-mavx_-fomit-frame-pointer_-Qunused-arguments2019101320190816
25905021? ? ?? ? ?refgcc_-m64_-march=core2_-msse4_-O2_-fomit-frame-pointer2019101320190816
25960914? ? ?? ? ?refgcc_-m64_-march=k8_-O3_-fomit-frame-pointer2019101320190816
25962384? ? ?? ? ?refgcc_-m64_-march=corei7_-O2_-fomit-frame-pointer2019101320190816
2598424862046 6 085710 808 1648refclang_-mcpu=native_-mfpu=neon_-O3_-fomit-frame-pointer_-fwrapv_-Qunused-arguments2019101320190816
2598821762046 6 085710 808 1648refclang_-mcpu=cortex-a8_-mfpu=neon_-O3_-fomit-frame-pointer_-fwrapv_-Qunused-arguments2019101320190816
25998171? ? ?? ? ?refgcc_-m64_-march=core-avx-i_-O3_-fomit-frame-pointer2019101320190816
26019948? ? ?? ? ?refgcc_-m64_-march=core-avx-i_-O2_-fomit-frame-pointer2019101320190816
26027982? ? ?? ? ?refgcc_-fno-schedule-insns_-O3_-fomit-frame-pointer2019101320190816
26236944? ? ?? ? ?refgcc_-funroll-loops_-m64_-march=k8_-O2_-fomit-frame-pointer2019101320190816
26289687? ? ?? ? ?refgcc_-m64_-march=core2_-O2_-fomit-frame-pointer2019101320190816
26316585? ? ?? ? ?refgcc_-m64_-O2_-fomit-frame-pointer2019101320190816
26342679? ? ?? ? ?refgcc_-funroll-loops_-march=k8_-O2_-fomit-frame-pointer2019101320190816
26526387? ? ?? ? ?refgcc_-fno-schedule-insns_-O2_-fomit-frame-pointer2019101320190816
26540205? ? ?? ? ?refgcc_-funroll-loops_-march=k8_-O3_-fomit-frame-pointer2019101320190816
26549946? ? ?? ? ?refgcc_-m64_-march=k8_-O2_-fomit-frame-pointer2019101320190816
26583657? ? ?? ? ?refgcc_-m64_-march=corei7-avx_-O2_-fomit-frame-pointer2019101320190816
26589831? ? ?? ? ?refgcc_-march=native_-mtune=native_-O2_-fomit-frame-pointer_-fwrapv2019101320190816
26602077? ? ?? ? ?refgcc_-m64_-march=native_-mtune=native_-O2_-fomit-frame-pointer2019101320190816
26602563? ? ?? ? ?refgcc_-O2_-fomit-frame-pointer2019101320190816
26618910? ? ?? ? ?refgcc_-funroll-loops_-O3_-fomit-frame-pointer2019101320190816
26641461? ? ?? ? ?refgcc_-funroll-loops_-m64_-march=k8_-O3_-fomit-frame-pointer2019101320190816
26654196? ? ?? ? ?refgcc_-march=k8_-O2_-fomit-frame-pointer2019101320190816
26825442? ? ?? ? ?refgcc_-m64_-march=native_-mtune=native_-O3_-fomit-frame-pointer2019101320190816
26839791? ? ?? ? ?refgcc_-funroll-loops_-fno-schedule-insns_-O3_-fomit-frame-pointer2019101320190816
26972124? ? ?? ? ?refgcc_-m64_-march=core2_-msse4_-O3_-fomit-frame-pointer2019101320190816
27113757? ? ?? ? ?refgcc_-m64_-march=corei7-avx_-O3_-fomit-frame-pointer2019101320190816
2774510168808 6 090046 808 2000refclang_-march=native_-O3_-fomit-frame-pointer_-fwrapv_-Qunused-arguments2019101320190816
2878386368808 6 090046 808 2000refclang_-O3_-fwrapv_-march=native_-fomit-frame-pointer_-Qunused-arguments2019101320190816
29120184? ? ?? ? ?refgcc_-m64_-march=corei7_-O3_-fomit-frame-pointer2019101320190816
29199651? ? ?? ? ?refgcc_-m64_-O3_-fomit-frame-pointer2019101320190816
29221941? ? ?? ? ?refgcc_-m64_-march=core2_-msse4.1_-O3_-fomit-frame-pointer2019101320190816
2927712062046 6 085710 808 1648refclang_-mcpu=cortex-a9_-mfpu=neon_-O3_-fomit-frame-pointer_-fwrapv_-Qunused-arguments2019101320190816
29356068? ? ?? ? ?refgcc_-march=k8_-O3_-fomit-frame-pointer2019101320190816
29897055? ? ?? ? ?refgcc_-fno-schedule-insns_-O_-fomit-frame-pointer2019101320190816
30273000? ? ?? ? ?refgcc_-m64_-march=core2_-msse4.1_-O2_-fomit-frame-pointer2019101320190816
31707654? ? ?? ? ?refgcc_-O_-fomit-frame-pointer2019101320190816
31860621? ? ?? ? ?refgcc_-m64_-march=k8_-O_-fomit-frame-pointer2019101320190816
31922010? ? ?? ? ?refgcc_-march=k8_-O_-fomit-frame-pointer2019101320190816
32177802? ? ?? ? ?refgcc_-m64_-march=core2_-msse4.1_-O_-fomit-frame-pointer2019101320190816
32681748? ? ?? ? ?refgcc_-m64_-march=core-avx-i_-O_-fomit-frame-pointer2019101320190816
32709165? ? ?? ? ?refgcc_-m64_-O_-fomit-frame-pointer2019101320190816
33123405? ? ?? ? ?refgcc_-m64_-march=corei7_-O_-fomit-frame-pointer2019101320190816
34326216? ? ?? ? ?refgcc_-m64_-march=core2_-O_-fomit-frame-pointer2019101320190816
34641366? ? ?? ? ?refgcc_-m64_-march=core2_-msse4_-O_-fomit-frame-pointer2019101320190816
34937292? ? ?? ? ?refgcc_-m64_-march=native_-mtune=native_-O_-fomit-frame-pointer2019101320190816
35327382? ? ?? ? ?refgcc_-march=native_-mtune=native_-O_-fomit-frame-pointer_-fwrapv2019101320190816
35527974? ? ?? ? ?refgcc_-m64_-march=corei7-avx_-O_-fomit-frame-pointer2019101320190816
35541633? ? ?? ? ?refgcc_-funroll-loops_-O_-fomit-frame-pointer2019101320190816
36317403? ? ?? ? ?refgcc_-funroll-loops_-m64_-march=k8_-O_-fomit-frame-pointer2019101320190816
36645132? ? ?? ? ?refgcc_-funroll-loops_-fno-schedule-insns_-O_-fomit-frame-pointer2019101320190816
37548837? ? ?? ? ?refgcc_-funroll-loops_-march=k8_-O_-fomit-frame-pointer2019101320190816
38737350? ? ?? ? ?refgcc_-funroll-loops_-m64_-O_-fomit-frame-pointer2019101320190816
57971829? ? ?? ? ?refgcc_-funroll-loops_-m64_-march=barcelona_-O2_-fomit-frame-pointer2019101320190816
57973020? ? ?? ? ?refgcc_-m64_-march=barcelona_-O_-fomit-frame-pointer2019101320190816
58134525? ? ?? ? ?refgcc_-m64_-march=barcelona_-O3_-fomit-frame-pointer2019101320190816
58265862? ? ?? ? ?refgcc_-funroll-loops_-march=nocona_-O2_-fomit-frame-pointer2019101320190816
58290822? ? ?? ? ?refgcc_-funroll-loops_-march=nocona_-O3_-fomit-frame-pointer2019101320190816
58601700? ? ?? ? ?refgcc_-march=nocona_-O3_-fomit-frame-pointer2019101320190816
58758627? ? ?? ? ?refgcc_-funroll-loops_-march=barcelona_-O2_-fomit-frame-pointer2019101320190816
58764243? ? ?? ? ?refgcc_-funroll-loops_-m64_-march=barcelona_-O_-fomit-frame-pointer2019101320190816
58966815? ? ?? ? ?refgcc_-march=barcelona_-O_-fomit-frame-pointer2019101320190816
59092992? ? ?? ? ?refgcc_-funroll-loops_-m64_-march=nocona_-O2_-fomit-frame-pointer2019101320190816
59099112? ? ?? ? ?refgcc_-funroll-loops_-m64_-march=nocona_-O3_-fomit-frame-pointer2019101320190816
59242536? ? ?? ? ?refgcc_-m64_-march=nocona_-O3_-fomit-frame-pointer2019101320190816
59342613? ? ?? ? ?refgcc_-march=barcelona_-O2_-fomit-frame-pointer2019101320190816
59401539? ? ?? ? ?refgcc_-march=nocona_-O2_-fomit-frame-pointer2019101320190816
59522202? ? ?? ? ?refgcc_-funroll-loops_-march=barcelona_-O3_-fomit-frame-pointer2019101320190816
59644230? ? ?? ? ?refgcc_-m64_-march=barcelona_-O2_-fomit-frame-pointer2019101320190816
60172107? ? ?? ? ?refgcc_-m64_-march=nocona_-O_-fomit-frame-pointer2019101320190816
60663273? ? ?? ? ?refgcc_-march=barcelona_-O3_-fomit-frame-pointer2019101320190816
60855357? ? ?? ? ?refgcc_-march=nocona_-O_-fomit-frame-pointer2019101320190816
62272425? ? ?? ? ?refgcc_-m64_-march=nocona_-O2_-fomit-frame-pointer2019101320190816
62360847? ? ?? ? ?refgcc_-funroll-loops_-march=nocona_-O_-fomit-frame-pointer2019101320190816
62471613? ? ?? ? ?refgcc_-funroll-loops_-march=barcelona_-O_-fomit-frame-pointer2019101320190816
62473674? ? ?? ? ?refgcc_-funroll-loops_-m64_-march=nocona_-O_-fomit-frame-pointer2019101320190816
63541746? ? ?? ? ?refgcc_-funroll-loops_-march=k8_-Os_-fomit-frame-pointer2019101320190816
63552981? ? ?? ? ?refgcc_-march=native_-mtune=native_-Os_-fomit-frame-pointer_-fwrapv2019101320190816
63599091? ? ?? ? ?refgcc_-m64_-march=nocona_-Os_-fomit-frame-pointer2019101320190816
63657741? ? ?? ? ?refgcc_-funroll-loops_-m64_-march=k8_-Os_-fomit-frame-pointer2019101320190816
63661239? ? ?? ? ?refgcc_-m64_-march=core2_-Os_-fomit-frame-pointer2019101320190816
63807870? ? ?? ? ?refgcc_-funroll-loops_-Os_-fomit-frame-pointer2019101320190816
63862044? ? ?? ? ?refgcc_-m64_-march=barcelona_-Os_-fomit-frame-pointer2019101320190816
63957156? ? ?? ? ?refgcc_-funroll-loops_-m64_-march=nocona_-Os_-fomit-frame-pointer2019101320190816
64048542? ? ?? ? ?refgcc_-m64_-march=corei7-avx_-Os_-fomit-frame-pointer2019101320190816
64217547? ? ?? ? ?refgcc_-Os_-fomit-frame-pointer2019101320190816
64338582? ? ?? ? ?refgcc_-m64_-march=core2_-msse4.1_-Os_-fomit-frame-pointer2019101320190816
64401855? ? ?? ? ?refgcc_-march=nocona_-Os_-fomit-frame-pointer2019101320190816
64882167? ? ?? ? ?refgcc_-m64_-Os_-fomit-frame-pointer2019101320190816
64920237? ? ?? ? ?refgcc_-funroll-loops_-m64_-Os_-fomit-frame-pointer2019101320190816
65362716? ? ?? ? ?refgcc_-m64_-march=k8_-Os_-fomit-frame-pointer2019101320190816
65393721? ? ?? ? ?refgcc_-funroll-loops_-march=nocona_-Os_-fomit-frame-pointer2019101320190816
65893053? ? ?? ? ?refgcc_-funroll-loops_-m64_-march=barcelona_-O3_-fomit-frame-pointer2019101320190816
67534917? ? ?? ? ?refgcc_-m64_-march=core2_-msse4_-Os_-fomit-frame-pointer2019101320190816
68218398? ? ?? ? ?refgcc_-m64_-march=native_-mtune=native_-Os_-fomit-frame-pointer2019101320190816
68810043? ? ?? ? ?refgcc_-funroll-loops_-march=barcelona_-Os_-fomit-frame-pointer2019101320190816
69079398? ? ?? ? ?refgcc_-march=k8_-Os_-fomit-frame-pointer2019101320190816
69247752? ? ?? ? ?refgcc_-funroll-loops_-fno-schedule-insns_-Os_-fomit-frame-pointer2019101320190816
69305127? ? ?? ? ?refgcc_-m64_-march=core-avx-i_-Os_-fomit-frame-pointer2019101320190816
69628458? ? ?? ? ?refgcc_-m64_-march=corei7_-Os_-fomit-frame-pointer2019101320190816
70189746? ? ?? ? ?refgcc_-fno-schedule-insns_-Os_-fomit-frame-pointer2019101320190816
70353327? ? ?? ? ?refgcc_-funroll-loops_-m64_-march=barcelona_-Os_-fomit-frame-pointer2019101320190816
70830321? ? ?? ? ?refgcc_-march=barcelona_-Os_-fomit-frame-pointer2019101320190816
100991013? ? ?? ? ?refgcc2019101320190816
101940783? ? ?? ? ?refgcc_-funroll-loops2019101320190816
102388449? ? ?? ? ?refcc2019101320190816

Test failure

Implementation: ref
Security model: unknown
Compiler: gcc -m64 -march=core-avx2 -O2 -fomit-frame-pointer
error 111

Number of similar (compiler,implementation) pairs: 3, namely:
CompilerImplementations
gcc -m64 -march=core-avx2 -O2 -fomit-frame-pointer ref
gcc -m64 -march=core-avx2 -O -fomit-frame-pointer ref
gcc -m64 -march=core-avx2 -Os -fomit-frame-pointer ref

Compiler output

Implementation: ref
Security model: unknown
Compiler: cc
measure.c: /usr/bin/ld: /home/z/supercop/supercop-20190816/supercop-data/gpu/amd64/lib/fastrandombytes.o: relocation R_X86_64_32 against `.bss' can not be used when making a PIE object; recompile with -fPIC
measure.c: /usr/bin/ld: final link failed: Nonrepresentable section on output
measure.c: collect2: error: ld returned 1 exit status

Number of similar (compiler,implementation) pairs: 103, namely:
CompilerImplementations
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=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: ref
Security model: unknown
Compiler: gcc -m64 -march=barcelona -O2 -fomit-frame-pointer
measure.c: /usr/bin/ld: /home/z/supercop/supercop-20190816/supercop-data/gpu/amd64/lib/fastrandombytes.o: relocation R_X86_64_32 against `.bss' can not be used when making a PIE object; recompile with -fPIC
measure.c: /usr/bin/ld: final link failed: Nonrepresentable section on output
measure.c: collect2: error: ld returned 1 exit status
measure.c: /usr/bin/ld: /home/z/supercop/supercop-20190816/supercop-data/gpu/amd64/lib/fastrandombytes.o: relocation R_X86_64_32 against `.bss' can not be used when making a PIE object; recompile with -fPIC
measure.c: /usr/bin/ld: final link failed: Nonrepresentable section on output
measure.c: collect2: error: ld returned 1 exit status

Number of similar (compiler,implementation) pairs: 4, namely:
CompilerImplementations
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