Implementation notes: amd64, manny1024, crypto_aead/aes256otrsv2

Computer: manny1024
Architecture: amd64
CPU ID: GenuineIntel-00050654-bfebfbff
SUPERCOP version: 20170904
Operation: crypto_aead
Primitive: aes256otrsv2
TimeObject sizeTest sizeImplementationCompilerBenchmark dateSUPERCOP version
105544? ? ?? ? ?refgcc_-m64_-march=corei7_-O3_-fomit-frame-pointer2017091720170904
105888? ? ?? ? ?refgcc_-m64_-march=core-avx-i_-O3_-fomit-frame-pointer2017091720170904
106108? ? ?? ? ?refgcc_-m64_-march=corei7-avx_-O3_-fomit-frame-pointer2017091720170904
106160? ? ?? ? ?refgcc_-m64_-march=core2_-msse4_-O3_-fomit-frame-pointer2017091720170904
106738? ? ?? ? ?refgcc_-m64_-march=core-avx2_-O3_-fomit-frame-pointer2017091720170904
107428? ? ?? ? ?refgcc_-march=k8_-O3_-fomit-frame-pointer2017091720170904
107678? ? ?? ? ?refgcc_-march=barcelona_-O3_-fomit-frame-pointer2017091720170904
107700? ? ?? ? ?refgcc_-m64_-march=barcelona_-O3_-fomit-frame-pointer2017091720170904
107852? ? ?? ? ?refgcc_-m64_-march=k8_-O3_-fomit-frame-pointer2017091720170904
107854? ? ?? ? ?refgcc_-m64_-march=core2_-O3_-fomit-frame-pointer2017091720170904
108886? ? ?? ? ?refgcc_-funroll-loops_-m64_-march=nocona_-O2_-fomit-frame-pointer2017091720170904
108958? ? ?? ? ?refgcc_-funroll-loops_-march=nocona_-O2_-fomit-frame-pointer2017091720170904
109018? ? ?? ? ?refgcc_-m64_-O3_-fomit-frame-pointer2017091720170904
109044? ? ?? ? ?refgcc_-fno-schedule-insns_-O3_-fomit-frame-pointer2017091720170904
109084? ? ?? ? ?refgcc_-O3_-fomit-frame-pointer2017091720170904
109390? ? ?? ? ?refgcc_-funroll-loops_-m64_-march=k8_-O3_-fomit-frame-pointer2017091720170904
109594? ? ?? ? ?refgcc_-funroll-loops_-march=k8_-O3_-fomit-frame-pointer2017091720170904
109630? ? ?? ? ?refgcc_-funroll-loops_-O3_-fomit-frame-pointer2017091720170904
109630? ? ?? ? ?refgcc_-funroll-loops_-m64_-march=barcelona_-O3_-fomit-frame-pointer2017091720170904
109638? ? ?? ? ?refgcc_-funroll-loops_-march=barcelona_-O3_-fomit-frame-pointer2017091720170904
109692? ? ?? ? ?refgcc_-funroll-loops_-m64_-O3_-fomit-frame-pointer2017091720170904
109896? ? ?? ? ?refgcc_-funroll-loops_-march=nocona_-O3_-fomit-frame-pointer2017091720170904
109950? ? ?? ? ?refgcc_-funroll-loops_-m64_-march=nocona_-O3_-fomit-frame-pointer2017091720170904
110118? ? ?? ? ?refgcc_-funroll-loops_-m64_-march=barcelona_-O2_-fomit-frame-pointer2017091720170904
110236? ? ?? ? ?refgcc_-funroll-loops_-march=barcelona_-O2_-fomit-frame-pointer2017091720170904
110248? ? ?? ? ?refgcc_-march=native_-mtune=native_-O3_-fomit-frame-pointer_-fwrapv2017091720170904
110272? ? ?? ? ?refgcc_-funroll-loops_-m64_-O2_-fomit-frame-pointer2017091720170904
110274? ? ?? ? ?refgcc_-funroll-loops_-fno-schedule-insns_-O2_-fomit-frame-pointer2017091720170904
110278? ? ?? ? ?refgcc_-funroll-loops_-m64_-march=k8_-O2_-fomit-frame-pointer2017091720170904
110310? ? ?? ? ?refgcc_-funroll-loops_-march=k8_-O2_-fomit-frame-pointer2017091720170904
110360? ? ?? ? ?refgcc_-funroll-loops_-O2_-fomit-frame-pointer2017091720170904
111036? ? ?? ? ?refgcc_-m64_-march=core2_-msse4.1_-O3_-fomit-frame-pointer2017091720170904
111866? ? ?? ? ?refgcc_-m64_-march=native_-mtune=native_-O3_-fomit-frame-pointer2017091720170904
111934? ? ?? ? ?refgcc_-m64_-march=nocona_-O3_-fomit-frame-pointer2017091720170904
112642? ? ?? ? ?refgcc_-march=native_-mtune=native_-O2_-fomit-frame-pointer_-fwrapv2017091720170904
113226? ? ?? ? ?refgcc_-march=nocona_-O2_-fomit-frame-pointer2017091720170904
113336? ? ?? ? ?refgcc_-m64_-march=nocona_-O2_-fomit-frame-pointer2017091720170904
113366? ? ?? ? ?refgcc_-m64_-march=core-avx2_-O2_-fomit-frame-pointer2017091720170904
113394? ? ?? ? ?refgcc_-m64_-march=barcelona_-O2_-fomit-frame-pointer2017091720170904
113462? ? ?? ? ?refgcc_-funroll-loops_-fno-schedule-insns_-O_-fomit-frame-pointer2017091720170904
113468? ? ?? ? ?refgcc_-funroll-loops_-m64_-O_-fomit-frame-pointer2017091720170904
113480? ? ?? ? ?refgcc_-march=barcelona_-O2_-fomit-frame-pointer2017091720170904
113500? ? ?? ? ?refgcc_-funroll-loops_-O_-fomit-frame-pointer2017091720170904
113534? ? ?? ? ?refgcc_-m64_-march=core-avx-i_-O2_-fomit-frame-pointer2017091720170904
113546? ? ?? ? ?refgcc_-funroll-loops_-m64_-march=k8_-O_-fomit-frame-pointer2017091720170904
113566? ? ?? ? ?refgcc_-m64_-march=corei7_-O2_-fomit-frame-pointer2017091720170904
113586? ? ?? ? ?refgcc_-funroll-loops_-march=k8_-O_-fomit-frame-pointer2017091720170904
113640? ? ?? ? ?refgcc_-m64_-march=corei7-avx_-O2_-fomit-frame-pointer2017091720170904
113646? ? ?? ? ?refgcc_-funroll-loops_-march=nocona_-O_-fomit-frame-pointer2017091720170904
113678? ? ?? ? ?refgcc_-funroll-loops_-m64_-march=nocona_-O_-fomit-frame-pointer2017091720170904
113730? ? ?? ? ?refgcc_-funroll-loops_-m64_-march=barcelona_-O_-fomit-frame-pointer2017091720170904
113746? ? ?? ? ?refgcc_-m64_-march=native_-mtune=native_-O2_-fomit-frame-pointer2017091720170904
113792? ? ?? ? ?refgcc_-march=k8_-O2_-fomit-frame-pointer2017091720170904
113800? ? ?? ? ?refgcc_-funroll-loops_-fno-schedule-insns_-O3_-fomit-frame-pointer2017091720170904
113810? ? ?? ? ?refgcc_-m64_-march=core2_-msse4_-O2_-fomit-frame-pointer2017091720170904
114348? ? ?? ? ?refgcc_-m64_-march=k8_-O2_-fomit-frame-pointer2017091720170904
114452? ? ?? ? ?reficc_-no-vec2017091720170904
114472? ? ?? ? ?refgcc_-march=nocona_-O3_-fomit-frame-pointer2017091720170904
114608? ? ?? ? ?refgcc_-m64_-march=core2_-O2_-fomit-frame-pointer2017091720170904
114706? ? ?? ? ?refgcc_-m64_-O2_-fomit-frame-pointer2017091720170904
114824? ? ?? ? ?refgcc_-O2_-fomit-frame-pointer2017091720170904
114860? ? ?? ? ?refgcc_-fno-schedule-insns_-O2_-fomit-frame-pointer2017091720170904
118388? ? ?? ? ?refgcc_-funroll-loops_-march=barcelona_-O_-fomit-frame-pointer2017091720170904
118728? ? ?? ? ?refgcc_-m64_-march=corei7-avx_-O_-fomit-frame-pointer2017091720170904
118748? ? ?? ? ?refgcc_-march=native_-mtune=native_-O_-fomit-frame-pointer_-fwrapv2017091720170904
118766? ? ?? ? ?refgcc_-m64_-march=core2_-O_-fomit-frame-pointer2017091720170904
118810? ? ?? ? ?refgcc_-m64_-O_-fomit-frame-pointer2017091720170904
118826? ? ?? ? ?refgcc_-m64_-march=core-avx2_-O_-fomit-frame-pointer2017091720170904
118840? ? ?? ? ?refgcc_-m64_-march=core2_-msse4.1_-O_-fomit-frame-pointer2017091720170904
118884? ? ?? ? ?refgcc_-m64_-march=core2_-msse4_-O_-fomit-frame-pointer2017091720170904
118892? ? ?? ? ?refgcc_-m64_-march=corei7_-O_-fomit-frame-pointer2017091720170904
118928? ? ?? ? ?refgcc_-O_-fomit-frame-pointer2017091720170904
119344? ? ?? ? ?refgcc_-fno-schedule-insns_-O_-fomit-frame-pointer2017091720170904
119580? ? ?? ? ?refgcc_-m64_-march=core-avx-i_-O_-fomit-frame-pointer2017091720170904
122466? ? ?? ? ?refgcc_-m64_-march=native_-mtune=native_-O_-fomit-frame-pointer2017091720170904
123502? ? ?? ? ?refgcc_-m64_-march=barcelona_-O_-fomit-frame-pointer2017091720170904
123538? ? ?? ? ?refgcc_-march=barcelona_-O_-fomit-frame-pointer2017091720170904
124088? ? ?? ? ?refgcc_-m64_-march=nocona_-O_-fomit-frame-pointer2017091720170904
124762? ? ?? ? ?refgcc_-m64_-march=k8_-O_-fomit-frame-pointer2017091720170904
125052? ? ?? ? ?refgcc_-march=k8_-O_-fomit-frame-pointer2017091720170904
126698? ? ?? ? ?refgcc_-funroll-loops_-fno-schedule-insns_-Os_-fomit-frame-pointer2017091720170904
126702? ? ?? ? ?refgcc_-funroll-loops_-Os_-fomit-frame-pointer2017091720170904
126712? ? ?? ? ?refgcc_-funroll-loops_-m64_-march=barcelona_-Os_-fomit-frame-pointer2017091720170904
126744? ? ?? ? ?refgcc_-funroll-loops_-march=k8_-Os_-fomit-frame-pointer2017091720170904
126746? ? ?? ? ?refgcc_-funroll-loops_-march=barcelona_-Os_-fomit-frame-pointer2017091720170904
126774? ? ?? ? ?refgcc_-funroll-loops_-m64_-march=k8_-Os_-fomit-frame-pointer2017091720170904
126866? ? ?? ? ?refgcc_-funroll-loops_-m64_-Os_-fomit-frame-pointer2017091720170904
128168? ? ?? ? ?refgcc_-funroll-loops_-m64_-march=nocona_-Os_-fomit-frame-pointer2017091720170904
128226? ? ?? ? ?refgcc_-funroll-loops_-march=nocona_-Os_-fomit-frame-pointer2017091720170904
128512? ? ?? ? ?refgcc_-m64_-march=nocona_-Os_-fomit-frame-pointer2017091720170904
128954? ? ?? ? ?refgcc_-march=nocona_-Os_-fomit-frame-pointer2017091720170904
129204? ? ?? ? ?refgcc_-Os_-fomit-frame-pointer2017091720170904
129240? ? ?? ? ?refgcc_-m64_-Os_-fomit-frame-pointer2017091720170904
129248? ? ?? ? ?refgcc_-fno-schedule-insns_-Os_-fomit-frame-pointer2017091720170904
129388? ? ?? ? ?refgcc_-march=k8_-Os_-fomit-frame-pointer2017091720170904
129396? ? ?? ? ?refgcc_-march=barcelona_-Os_-fomit-frame-pointer2017091720170904
129706? ? ?? ? ?refgcc_-m64_-march=core2_-msse4.1_-Os_-fomit-frame-pointer2017091720170904
129714? ? ?? ? ?refgcc_-m64_-march=core2_-Os_-fomit-frame-pointer2017091720170904
129748? ? ?? ? ?refgcc_-m64_-march=k8_-Os_-fomit-frame-pointer2017091720170904
129776? ? ?? ? ?refgcc_-m64_-march=core2_-msse4_-Os_-fomit-frame-pointer2017091720170904
129856? ? ?? ? ?refgcc_-m64_-march=core-avx-i_-Os_-fomit-frame-pointer2017091720170904
129914? ? ?? ? ?refgcc_-m64_-march=barcelona_-Os_-fomit-frame-pointer2017091720170904
129976? ? ?? ? ?refgcc_-m64_-march=corei7-avx_-Os_-fomit-frame-pointer2017091720170904
131646? ? ?? ? ?refgcc_-m64_-march=core-avx2_-Os_-fomit-frame-pointer2017091720170904
133868? ? ?? ? ?refgcc_-march=nocona_-O_-fomit-frame-pointer2017091720170904
134132? ? ?? ? ?refgcc_-m64_-march=corei7_-Os_-fomit-frame-pointer2017091720170904
135396? ? ?? ? ?refgcc_-m64_-march=native_-mtune=native_-Os_-fomit-frame-pointer2017091720170904
135746? ? ?? ? ?refgcc_-march=native_-mtune=native_-Os_-fomit-frame-pointer_-fwrapv2017091720170904
138990? ? ?? ? ?refgcc_-m64_-march=core2_-msse4.1_-O2_-fomit-frame-pointer2017091720170904
170552? ? ?? ? ?reficc_-xCOMMON-AVX512_-O3_-fomit-frame-pointer2017091720170904
170890? ? ?? ? ?reficc2017091720170904
171184? ? ?? ? ?reficc_-xCORE-AVX-I_-O3_-fomit-frame-pointer2017091720170904
171474? ? ?? ? ?reficc_-xCORE-AVX2_-O3_-fomit-frame-pointer2017091720170904
171520? ? ?? ? ?reficc_-xCORE-AVX512_-O3_-fomit-frame-pointer2017091720170904
172862? ? ?? ? ?reficc_-xCORE-AVX-I_-O2_-fomit-frame-pointer2017091720170904
173326? ? ?? ? ?reficc_-xCORE-AVX2_-O2_-fomit-frame-pointer2017091720170904
173718? ? ?? ? ?reficc_-xCORE-AVX512_-O2_-fomit-frame-pointer2017091720170904
175102? ? ?? ? ?reficc_-xCOMMON-AVX512_-O2_-fomit-frame-pointer2017091720170904
350122? ? ?? ? ?refcc2017091720170904
350480? ? ?? ? ?refgcc2017091720170904
376442? ? ?? ? ?refgcc_-funroll-loops2017091720170904

Compiler output

Implementation: crypto_aead/aes256otrsv2/ref
Compiler: cc
OTR.c: OTR.c:51:7: warning: built-in function 'gamma' declared as non-function [enabled by default]
OTR.c: uint8 gamma[BLOCK]={0}, gamma2[BLOCK]={0}, Q[BLOCK]={0};
OTR.c: ^

Number of similar (compiler,implementation) pairs: 1, namely:
CompilerImplementations
cc ref

Compiler output

Implementation: crypto_aead/aes256otrsv2/ref
Compiler: gcc
OTR.c: OTR.c:51:7: warning: built-in function 'gamma' declared as non-function
OTR.c: uint8 gamma[BLOCK]={0}, gamma2[BLOCK]={0}, Q[BLOCK]={0};
OTR.c: ^~~~~

Number of similar (compiler,implementation) pairs: 106, namely:
CompilerImplementations
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: crypto_aead/aes256otrsv2/ref
Compiler: gcc -m64 -march=barcelona -O2 -fomit-frame-pointer
OTR.c: OTR.c:51:7: warning: built-in function 'gamma' declared as non-function
OTR.c: uint8 gamma[BLOCK]={0}, gamma2[BLOCK]={0}, Q[BLOCK]={0};
OTR.c: ^~~~~
OTR.c: OTR.c:51:7: warning: built-in function 'gamma' declared as non-function
OTR.c: uint8 gamma[BLOCK]={0}, gamma2[BLOCK]={0}, Q[BLOCK]={0};
OTR.c: ^~~~~

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