Implementation notes: amd64, gpu, crypto_encrypt/pqrsa15

Computer: gpu
Architecture: amd64
CPU ID: GenuineIntel-000206d7-bfebfbff
SUPERCOP version: 20190816
Operation: crypto_encrypt
Primitive: pqrsa15
TimeObject sizeTest sizeImplementationCompilerBenchmark dateSUPERCOP version
2077803575377 0 0356475 912 1960refclang_-O3_-fwrapv_-mavx_-maes_-mpclmul_-fomit-frame-pointer_-Qunused-arguments2019101320190816
370312500? ? ?? ? ?refcc2019101320190816
373855644? ? ?? ? ?refgcc_-funroll-loops_-m64_-march=barcelona_-O3_-fomit-frame-pointer2019101320190816
373859811? ? ?? ? ?refgcc_-march=native_-mtune=native_-O3_-fomit-frame-pointer_-fwrapv2019101320190816
373908126? ? ?? ? ?refgcc_-funroll-loops_-m64_-march=k8_-O3_-fomit-frame-pointer2019101320190816
374122863? ? ?? ? ?refgcc_-funroll-loops_-march=barcelona_-O3_-fomit-frame-pointer2019101320190816
374177466? ? ?? ? ?refgcc_-march=barcelona_-O3_-fomit-frame-pointer2019101320190816
374232732? ? ?? ? ?refgcc_-funroll-loops_-m64_-O_-fomit-frame-pointer2019101320190816
374246967? ? ?? ? ?refgcc_-m64_-march=native_-mtune=native_-O3_-fomit-frame-pointer2019101320190816
374295876? ? ?? ? ?refgcc_-march=nocona_-O3_-fomit-frame-pointer2019101320190816
3743152115607 0 0359771 912 1608refclang_-mcpu=cortex-a9_-mfpu=neon_-O3_-fomit-frame-pointer_-fwrapv_-Qunused-arguments2019101320190816
374356452? ? ?? ? ?refgcc_-m64_-march=corei7_-O2_-fomit-frame-pointer2019101320190816
374365083? ? ?? ? ?refgcc_-funroll-loops_-m64_-march=k8_-O2_-fomit-frame-pointer2019101320190816
374368455? ? ?? ? ?refgcc_-m64_-march=core2_-msse4_-O_-fomit-frame-pointer2019101320190816
374565561? ? ?? ? ?refgcc_-march=barcelona_-O2_-fomit-frame-pointer2019101320190816
374604072? ? ?? ? ?refgcc_-m64_-march=corei7_-Os_-fomit-frame-pointer2019101320190816
374637225? ? ?? ? ?refgcc_-funroll-loops_-m64_-march=k8_-O_-fomit-frame-pointer2019101320190816
374639061? ? ?? ? ?refgcc_-funroll-loops_-march=nocona_-O2_-fomit-frame-pointer2019101320190816
374660202? ? ?? ? ?refgcc_-march=k8_-O2_-fomit-frame-pointer2019101320190816
374664492? ? ?? ? ?refgcc_-m64_-Os_-fomit-frame-pointer2019101320190816
374681205? ? ?? ? ?refgcc_-m64_-march=core-avx-i_-O_-fomit-frame-pointer2019101320190816
374716350? ? ?? ? ?refgcc_-march=k8_-O3_-fomit-frame-pointer2019101320190816
374770950? ? ?? ? ?refgcc_-funroll-loops_-m64_-march=nocona_-O_-fomit-frame-pointer2019101320190816
374840769? ? ?? ? ?refgcc_-m64_-march=core-avx-i_-O2_-fomit-frame-pointer2019101320190816
374883972? ? ?? ? ?refgcc_-m64_-march=core2_-msse4.1_-O2_-fomit-frame-pointer2019101320190816
374915004? ? ?? ? ?refgcc_-march=barcelona_-O_-fomit-frame-pointer2019101320190816
374939268? ? ?? ? ?refgcc_-m64_-march=barcelona_-Os_-fomit-frame-pointer2019101320190816
375022437? ? ?? ? ?refgcc_-m64_-march=nocona_-O3_-fomit-frame-pointer2019101320190816
375111165? ? ?? ? ?refgcc_-m64_-march=barcelona_-O2_-fomit-frame-pointer2019101320190816
375169419? ? ?? ? ?refgcc_-m64_-march=core2_-msse4.1_-O_-fomit-frame-pointer2019101320190816
375173013? ? ?? ? ?refgcc_-m64_-march=core-avx-i_-O3_-fomit-frame-pointer2019101320190816
375242004? ? ?? ? ?refgcc_-funroll-loops_-march=nocona_-O_-fomit-frame-pointer2019101320190816
375362557? ? ?? ? ?refgcc_-funroll-loops_-fno-schedule-insns_-O3_-fomit-frame-pointer2019101320190816
375463218? ? ?? ? ?refgcc_-m64_-march=core2_-O2_-fomit-frame-pointer2019101320190816
375507477? ? ?? ? ?refgcc_-m64_-march=nocona_-O_-fomit-frame-pointer2019101320190816
375717102? ? ?? ? ?refgcc_-funroll-loops_-O_-fomit-frame-pointer2019101320190816
375769161? ? ?? ? ?refgcc_-m64_-march=nocona_-Os_-fomit-frame-pointer2019101320190816
376036998? ? ?? ? ?refgcc_-march=nocona_-O_-fomit-frame-pointer2019101320190816
376099143? ? ?? ? ?refgcc_-m64_-march=corei7-avx_-Os_-fomit-frame-pointer2019101320190816
376124253? ? ?? ? ?refgcc_-m64_-march=core2_-msse4.1_-Os_-fomit-frame-pointer2019101320190816
376132023? ? ?? ? ?refgcc_-funroll-loops2019101320190816
376150341? ? ?? ? ?refgcc_-m64_-march=k8_-Os_-fomit-frame-pointer2019101320190816
376255854? ? ?? ? ?refgcc2019101320190816
376459072? ? ?? ? ?refgcc_-fno-schedule-insns_-O_-fomit-frame-pointer2019101320190816
376471056? ? ?? ? ?refgcc_-m64_-O3_-fomit-frame-pointer2019101320190816
376654473? ? ?? ? ?refgcc_-fno-schedule-insns_-O3_-fomit-frame-pointer2019101320190816
376666203? ? ?? ? ?refgcc_-m64_-march=native_-mtune=native_-O_-fomit-frame-pointer2019101320190816
376699959? ? ?? ? ?refgcc_-funroll-loops_-march=nocona_-O3_-fomit-frame-pointer2019101320190816
376919880? ? ?? ? ?refgcc_-funroll-loops_-m64_-march=nocona_-O3_-fomit-frame-pointer2019101320190816
376984419? ? ?? ? ?refgcc_-m64_-march=barcelona_-O3_-fomit-frame-pointer2019101320190816
376985892? ? ?? ? ?refgcc_-m64_-march=corei7_-O_-fomit-frame-pointer2019101320190816
377001612? ? ?? ? ?refgcc_-fno-schedule-insns_-O2_-fomit-frame-pointer2019101320190816
377135073? ? ?? ? ?refgcc_-funroll-loops_-m64_-march=barcelona_-Os_-fomit-frame-pointer2019101320190816
377216457? ? ?? ? ?refgcc_-march=native_-mtune=native_-Os_-fomit-frame-pointer_-fwrapv2019101320190816
377223486? ? ?? ? ?refgcc_-funroll-loops_-m64_-Os_-fomit-frame-pointer2019101320190816
377224104? ? ?? ? ?refgcc_-funroll-loops_-m64_-O3_-fomit-frame-pointer2019101320190816
377317143? ? ?? ? ?refgcc_-march=barcelona_-Os_-fomit-frame-pointer2019101320190816
377321166? ? ?? ? ?refgcc_-march=native_-mtune=native_-O_-fomit-frame-pointer_-fwrapv2019101320190816
377493180? ? ?? ? ?refgcc_-funroll-loops_-march=k8_-O3_-fomit-frame-pointer2019101320190816
377553459? ? ?? ? ?refgcc_-funroll-loops_-m64_-march=nocona_-O2_-fomit-frame-pointer2019101320190816
377585180? ? ?? ? ?refgcc_-Os_-fomit-frame-pointer2019101320190816
377620611? ? ?? ? ?refgcc_-m64_-march=core2_-msse4_-Os_-fomit-frame-pointer2019101320190816
377631375? ? ?? ? ?refgcc_-funroll-loops_-m64_-march=nocona_-Os_-fomit-frame-pointer2019101320190816
377656281? ? ?? ? ?refgcc_-m64_-march=core2_-msse4.1_-O3_-fomit-frame-pointer2019101320190816
3776689355703 0 0357467 912 1960refclang_-march=native_-O3_-fomit-frame-pointer_-fwrapv_-Qunused-arguments2019101320190816
377706240? ? ?? ? ?refgcc_-march=k8_-O_-fomit-frame-pointer2019101320190816
3777558605607 0 0359771 912 1608refclang_-mcpu=cortex-a8_-mfpu=neon_-O3_-fomit-frame-pointer_-fwrapv_-Qunused-arguments2019101320190816
377868822? ? ?? ? ?refgcc_-march=k8_-Os_-fomit-frame-pointer2019101320190816
377888115? ? ?? ? ?refgcc_-funroll-loops_-O3_-fomit-frame-pointer2019101320190816
377972670? ? ?? ? ?refgcc_-funroll-loops_-march=k8_-O_-fomit-frame-pointer2019101320190816
377982849? ? ?? ? ?refgcc_-funroll-loops_-march=barcelona_-O_-fomit-frame-pointer2019101320190816
377991927? ? ?? ? ?refgcc_-m64_-march=core2_-O3_-fomit-frame-pointer2019101320190816
378095394? ? ?? ? ?refgcc_-m64_-march=core2_-O_-fomit-frame-pointer2019101320190816
378132666? ? ?? ? ?refgcc_-m64_-march=corei7-avx_-O3_-fomit-frame-pointer2019101320190816
378133759? ? ?? ? ?refgcc_-m64_-march=k8_-O_-fomit-frame-pointer2019101320190816
378174486? ? ?? ? ?refgcc_-funroll-loops_-fno-schedule-insns_-O_-fomit-frame-pointer2019101320190816
378212184? ? ?? ? ?refgcc_-m64_-march=k8_-O3_-fomit-frame-pointer2019101320190816
378260028? ? ?? ? ?refgcc_-m64_-march=corei7-avx_-O2_-fomit-frame-pointer2019101320190816
3783826265590 0 0358427 912 1608refclang_-O3_-fomit-frame-pointer_-Qunused-arguments2019101320190816
378409095? ? ?? ? ?refgcc_-m64_-march=native_-mtune=native_-O2_-fomit-frame-pointer2019101320190816
378420132? ? ?? ? ?refgcc_-m64_-O_-fomit-frame-pointer2019101320190816
378477225? ? ?? ? ?refgcc_-funroll-loops_-O2_-fomit-frame-pointer2019101320190816
378590550? ? ?? ? ?refgcc_-m64_-march=nocona_-O2_-fomit-frame-pointer2019101320190816
378637659? ? ?? ? ?refgcc_-funroll-loops_-m64_-march=barcelona_-O_-fomit-frame-pointer2019101320190816
378688805? ? ?? ? ?refgcc_-m64_-march=core2_-Os_-fomit-frame-pointer2019101320190816
378690051? ? ?? ? ?refgcc_-funroll-loops_-march=barcelona_-Os_-fomit-frame-pointer2019101320190816
378761805? ? ?? ? ?refgcc_-m64_-march=corei7-avx_-O_-fomit-frame-pointer2019101320190816
378764871? ? ?? ? ?refgcc_-funroll-loops_-fno-schedule-insns_-O2_-fomit-frame-pointer2019101320190816
379044405? ? ?? ? ?refgcc_-funroll-loops_-march=nocona_-Os_-fomit-frame-pointer2019101320190816
379098057? ? ?? ? ?refgcc_-march=nocona_-Os_-fomit-frame-pointer2019101320190816
379103796? ? ?? ? ?refgcc_-m64_-march=k8_-O2_-fomit-frame-pointer2019101320190816
379154466? ? ?? ? ?refgcc_-O3_-fomit-frame-pointer2019101320190816
379163445? ? ?? ? ?refgcc_-funroll-loops_-march=k8_-O2_-fomit-frame-pointer2019101320190816
379261224? ? ?? ? ?refgcc_-O2_-fomit-frame-pointer2019101320190816
379371663? ? ?? ? ?refgcc_-m64_-march=corei7_-O3_-fomit-frame-pointer2019101320190816
379713912? ? ?? ? ?refgcc_-m64_-march=core2_-msse4_-O2_-fomit-frame-pointer2019101320190816
379742361? ? ?? ? ?refgcc_-funroll-loops_-m64_-O2_-fomit-frame-pointer2019101320190816
379808478? ? ?? ? ?refgcc_-funroll-loops_-m64_-march=k8_-Os_-fomit-frame-pointer2019101320190816
380169387? ? ?? ? ?refgcc_-funroll-loops_-Os_-fomit-frame-pointer2019101320190816
380508192? ? ?? ? ?refgcc_-m64_-march=native_-mtune=native_-Os_-fomit-frame-pointer2019101320190816
380605824? ? ?? ? ?refgcc_-m64_-march=core-avx-i_-Os_-fomit-frame-pointer2019101320190816
3806611775607 0 0359771 912 1608refclang_-mcpu=native_-mfpu=neon_-O3_-fomit-frame-pointer_-fwrapv_-Qunused-arguments2019101320190816
380863710? ? ?? ? ?refgcc_-march=nocona_-O2_-fomit-frame-pointer2019101320190816
380971206? ? ?? ? ?refgcc_-funroll-loops_-march=barcelona_-O2_-fomit-frame-pointer2019101320190816
380974851? ? ?? ? ?refgcc_-march=native_-mtune=native_-O2_-fomit-frame-pointer_-fwrapv2019101320190816
381158961? ? ?? ? ?refgcc_-m64_-march=barcelona_-O_-fomit-frame-pointer2019101320190816
381386868? ? ?? ? ?refgcc_-funroll-loops_-m64_-march=barcelona_-O2_-fomit-frame-pointer2019101320190816
381424473? ? ?? ? ?refgcc_-m64_-march=core2_-msse4_-O3_-fomit-frame-pointer2019101320190816
3816511805377 0 0356475 912 1960refclang_-O3_-fwrapv_-mavx_-fomit-frame-pointer_-Qunused-arguments2019101320190816
381698280? ? ?? ? ?refgcc_-m64_-O2_-fomit-frame-pointer2019101320190816
3818161685703 0 0357467 912 1960refclang_-O3_-fwrapv_-march=native_-fomit-frame-pointer_-Qunused-arguments2019101320190816
381838179? ? ?? ? ?refgcc_-funroll-loops_-fno-schedule-insns_-Os_-fomit-frame-pointer2019101320190816
382174551? ? ?? ? ?refgcc_-funroll-loops_-march=k8_-Os_-fomit-frame-pointer2019101320190816
382355934? ? ?? ? ?refgcc_-fno-schedule-insns_-Os_-fomit-frame-pointer2019101320190816
382499446? ? ?? ? ?refgcc_-O_-fomit-frame-pointer2019101320190816

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