Implementation notes: amd64, manny1024, crypto_aead/aes256otrpv2

Computer: manny1024
Architecture: amd64
CPU ID: GenuineIntel-00050654-bfebfbff
SUPERCOP version: 20170904
Operation: crypto_aead
Primitive: aes256otrpv2
TimeObject sizeTest sizeImplementationCompilerBenchmark dateSUPERCOP version
111320? ? ?? ? ?refgcc_-m64_-march=corei7_-O3_-fomit-frame-pointer2017091720170904
111428? ? ?? ? ?refgcc_-m64_-march=core2_-msse4.1_-O3_-fomit-frame-pointer2017091720170904
111700? ? ?? ? ?refgcc_-m64_-march=corei7-avx_-O3_-fomit-frame-pointer2017091720170904
111740? ? ?? ? ?refgcc_-m64_-march=core2_-msse4_-O3_-fomit-frame-pointer2017091720170904
111746? ? ?? ? ?refgcc_-m64_-march=core-avx-i_-O3_-fomit-frame-pointer2017091720170904
112990? ? ?? ? ?refgcc_-m64_-march=barcelona_-O3_-fomit-frame-pointer2017091720170904
113022? ? ?? ? ?refgcc_-m64_-march=core-avx2_-O3_-fomit-frame-pointer2017091720170904
113060? ? ?? ? ?refgcc_-march=k8_-O3_-fomit-frame-pointer2017091720170904
113124? ? ?? ? ?refgcc_-m64_-march=k8_-O3_-fomit-frame-pointer2017091720170904
113340? ? ?? ? ?refgcc_-march=barcelona_-O3_-fomit-frame-pointer2017091720170904
113772? ? ?? ? ?refgcc_-m64_-march=core2_-O3_-fomit-frame-pointer2017091720170904
114088? ? ?? ? ?refgcc_-funroll-loops_-m64_-march=barcelona_-O3_-fomit-frame-pointer2017091720170904
114224? ? ?? ? ?refgcc_-funroll-loops_-m64_-O3_-fomit-frame-pointer2017091720170904
114286? ? ?? ? ?refgcc_-funroll-loops_-march=barcelona_-O3_-fomit-frame-pointer2017091720170904
114502? ? ?? ? ?refgcc_-funroll-loops_-fno-schedule-insns_-O3_-fomit-frame-pointer2017091720170904
114512? ? ?? ? ?refgcc_-fno-schedule-insns_-O3_-fomit-frame-pointer2017091720170904
114530? ? ?? ? ?refgcc_-O3_-fomit-frame-pointer2017091720170904
116300? ? ?? ? ?refgcc_-funroll-loops_-m64_-march=nocona_-O3_-fomit-frame-pointer2017091720170904
116334? ? ?? ? ?refgcc_-march=nocona_-O3_-fomit-frame-pointer2017091720170904
116346? ? ?? ? ?refgcc_-funroll-loops_-march=nocona_-O3_-fomit-frame-pointer2017091720170904
116784? ? ?? ? ?refgcc_-march=native_-mtune=native_-O3_-fomit-frame-pointer_-fwrapv2017091720170904
116888? ? ?? ? ?refgcc_-funroll-loops_-m64_-march=nocona_-O2_-fomit-frame-pointer2017091720170904
116990? ? ?? ? ?refgcc_-funroll-loops_-march=nocona_-O2_-fomit-frame-pointer2017091720170904
117518? ? ?? ? ?refgcc_-m64_-march=native_-mtune=native_-O3_-fomit-frame-pointer2017091720170904
117744? ? ?? ? ?refgcc_-funroll-loops_-O3_-fomit-frame-pointer2017091720170904
117898? ? ?? ? ?refgcc_-funroll-loops_-m64_-march=k8_-O2_-fomit-frame-pointer2017091720170904
117908? ? ?? ? ?refgcc_-funroll-loops_-m64_-O2_-fomit-frame-pointer2017091720170904
117924? ? ?? ? ?refgcc_-funroll-loops_-march=k8_-O2_-fomit-frame-pointer2017091720170904
117940? ? ?? ? ?refgcc_-funroll-loops_-fno-schedule-insns_-O2_-fomit-frame-pointer2017091720170904
118014? ? ?? ? ?refgcc_-funroll-loops_-O2_-fomit-frame-pointer2017091720170904
118060? ? ?? ? ?refgcc_-funroll-loops_-march=barcelona_-O2_-fomit-frame-pointer2017091720170904
118110? ? ?? ? ?refgcc_-funroll-loops_-m64_-march=barcelona_-O2_-fomit-frame-pointer2017091720170904
118574? ? ?? ? ?refgcc_-m64_-O3_-fomit-frame-pointer2017091720170904
118780? ? ?? ? ?refgcc_-funroll-loops_-march=k8_-O3_-fomit-frame-pointer2017091720170904
119064? ? ?? ? ?refgcc_-funroll-loops_-m64_-march=k8_-O3_-fomit-frame-pointer2017091720170904
120094? ? ?? ? ?refgcc_-m64_-march=nocona_-O3_-fomit-frame-pointer2017091720170904
121444? ? ?? ? ?refgcc_-funroll-loops_-march=k8_-O_-fomit-frame-pointer2017091720170904
121578? ? ?? ? ?refgcc_-funroll-loops_-m64_-march=nocona_-O_-fomit-frame-pointer2017091720170904
121596? ? ?? ? ?refgcc_-funroll-loops_-march=nocona_-O_-fomit-frame-pointer2017091720170904
121710? ? ?? ? ?refgcc_-funroll-loops_-march=barcelona_-O_-fomit-frame-pointer2017091720170904
121762? ? ?? ? ?refgcc_-funroll-loops_-O_-fomit-frame-pointer2017091720170904
121780? ? ?? ? ?refgcc_-funroll-loops_-fno-schedule-insns_-O_-fomit-frame-pointer2017091720170904
122174? ? ?? ? ?refgcc_-funroll-loops_-m64_-O_-fomit-frame-pointer2017091720170904
122260? ? ?? ? ?refgcc_-funroll-loops_-m64_-march=k8_-O_-fomit-frame-pointer2017091720170904
123006? ? ?? ? ?refgcc_-m64_-march=core-avx-i_-O2_-fomit-frame-pointer2017091720170904
123056? ? ?? ? ?refgcc_-m64_-march=corei7-avx_-O2_-fomit-frame-pointer2017091720170904
123136? ? ?? ? ?refgcc_-m64_-march=core2_-msse4.1_-O2_-fomit-frame-pointer2017091720170904
123214? ? ?? ? ?refgcc_-m64_-march=core2_-msse4_-O2_-fomit-frame-pointer2017091720170904
123276? ? ?? ? ?refgcc_-m64_-march=core2_-O2_-fomit-frame-pointer2017091720170904
124070? ? ?? ? ?refgcc_-march=barcelona_-O2_-fomit-frame-pointer2017091720170904
124214? ? ?? ? ?refgcc_-m64_-march=barcelona_-O2_-fomit-frame-pointer2017091720170904
124250? ? ?? ? ?refgcc_-O2_-fomit-frame-pointer2017091720170904
124276? ? ?? ? ?refgcc_-m64_-march=nocona_-O2_-fomit-frame-pointer2017091720170904
124314? ? ?? ? ?refgcc_-march=k8_-O2_-fomit-frame-pointer2017091720170904
124338? ? ?? ? ?refgcc_-march=nocona_-O2_-fomit-frame-pointer2017091720170904
124402? ? ?? ? ?refgcc_-m64_-march=k8_-O2_-fomit-frame-pointer2017091720170904
124606? ? ?? ? ?refgcc_-fno-schedule-insns_-O2_-fomit-frame-pointer2017091720170904
124622? ? ?? ? ?reficc_-no-vec2017091720170904
124834? ? ?? ? ?refgcc_-m64_-O2_-fomit-frame-pointer2017091720170904
124940? ? ?? ? ?refgcc_-march=native_-mtune=native_-O2_-fomit-frame-pointer_-fwrapv2017091720170904
125450? ? ?? ? ?refgcc_-m64_-march=core-avx2_-O2_-fomit-frame-pointer2017091720170904
125636? ? ?? ? ?refgcc_-m64_-march=native_-mtune=native_-O2_-fomit-frame-pointer2017091720170904
126484? ? ?? ? ?refgcc_-funroll-loops_-m64_-march=barcelona_-O_-fomit-frame-pointer2017091720170904
129144? ? ?? ? ?refgcc_-m64_-march=corei7-avx_-O_-fomit-frame-pointer2017091720170904
129224? ? ?? ? ?refgcc_-m64_-march=core-avx-i_-O_-fomit-frame-pointer2017091720170904
129272? ? ?? ? ?refgcc_-m64_-march=corei7_-O_-fomit-frame-pointer2017091720170904
129450? ? ?? ? ?refgcc_-m64_-O_-fomit-frame-pointer2017091720170904
129468? ? ?? ? ?refgcc_-m64_-march=core-avx2_-O_-fomit-frame-pointer2017091720170904
129476? ? ?? ? ?refgcc_-m64_-march=core2_-msse4.1_-O_-fomit-frame-pointer2017091720170904
129502? ? ?? ? ?refgcc_-m64_-march=core2_-msse4_-O_-fomit-frame-pointer2017091720170904
129518? ? ?? ? ?refgcc_-O_-fomit-frame-pointer2017091720170904
129518? ? ?? ? ?refgcc_-m64_-march=native_-mtune=native_-O_-fomit-frame-pointer2017091720170904
129522? ? ?? ? ?refgcc_-march=native_-mtune=native_-O_-fomit-frame-pointer_-fwrapv2017091720170904
129588? ? ?? ? ?refgcc_-m64_-march=core2_-O_-fomit-frame-pointer2017091720170904
129688? ? ?? ? ?refgcc_-fno-schedule-insns_-O_-fomit-frame-pointer2017091720170904
132432? ? ?? ? ?refgcc_-m64_-march=corei7_-O2_-fomit-frame-pointer2017091720170904
136456? ? ?? ? ?refgcc_-m64_-march=barcelona_-O_-fomit-frame-pointer2017091720170904
136532? ? ?? ? ?refgcc_-march=barcelona_-O_-fomit-frame-pointer2017091720170904
136626? ? ?? ? ?refgcc_-m64_-march=nocona_-O_-fomit-frame-pointer2017091720170904
136722? ? ?? ? ?refgcc_-march=nocona_-O_-fomit-frame-pointer2017091720170904
136886? ? ?? ? ?refgcc_-march=k8_-O_-fomit-frame-pointer2017091720170904
136958? ? ?? ? ?refgcc_-m64_-march=k8_-O_-fomit-frame-pointer2017091720170904
138652? ? ?? ? ?refgcc_-funroll-loops_-m64_-Os_-fomit-frame-pointer2017091720170904
138666? ? ?? ? ?refgcc_-funroll-loops_-Os_-fomit-frame-pointer2017091720170904
138672? ? ?? ? ?refgcc_-funroll-loops_-march=k8_-Os_-fomit-frame-pointer2017091720170904
138720? ? ?? ? ?refgcc_-funroll-loops_-m64_-march=barcelona_-Os_-fomit-frame-pointer2017091720170904
138738? ? ?? ? ?refgcc_-funroll-loops_-m64_-march=k8_-Os_-fomit-frame-pointer2017091720170904
138756? ? ?? ? ?refgcc_-funroll-loops_-fno-schedule-insns_-Os_-fomit-frame-pointer2017091720170904
138762? ? ?? ? ?refgcc_-funroll-loops_-march=barcelona_-Os_-fomit-frame-pointer2017091720170904
139786? ? ?? ? ?refgcc_-march=nocona_-Os_-fomit-frame-pointer2017091720170904
139808? ? ?? ? ?refgcc_-m64_-march=nocona_-Os_-fomit-frame-pointer2017091720170904
139964? ? ?? ? ?refgcc_-funroll-loops_-m64_-march=nocona_-Os_-fomit-frame-pointer2017091720170904
140496? ? ?? ? ?refgcc_-Os_-fomit-frame-pointer2017091720170904
140514? ? ?? ? ?refgcc_-fno-schedule-insns_-Os_-fomit-frame-pointer2017091720170904
140636? ? ?? ? ?refgcc_-march=barcelona_-Os_-fomit-frame-pointer2017091720170904
140650? ? ?? ? ?refgcc_-march=k8_-Os_-fomit-frame-pointer2017091720170904
140658? ? ?? ? ?refgcc_-m64_-march=barcelona_-Os_-fomit-frame-pointer2017091720170904
140700? ? ?? ? ?refgcc_-m64_-march=k8_-Os_-fomit-frame-pointer2017091720170904
141006? ? ?? ? ?refgcc_-m64_-march=corei7_-Os_-fomit-frame-pointer2017091720170904
141014? ? ?? ? ?refgcc_-funroll-loops_-march=nocona_-Os_-fomit-frame-pointer2017091720170904
141068? ? ?? ? ?refgcc_-m64_-Os_-fomit-frame-pointer2017091720170904
141142? ? ?? ? ?refgcc_-m64_-march=core2_-msse4_-Os_-fomit-frame-pointer2017091720170904
141286? ? ?? ? ?refgcc_-m64_-march=core2_-Os_-fomit-frame-pointer2017091720170904
141606? ? ?? ? ?refgcc_-m64_-march=core-avx-i_-Os_-fomit-frame-pointer2017091720170904
141614? ? ?? ? ?refgcc_-m64_-march=core2_-msse4.1_-Os_-fomit-frame-pointer2017091720170904
142508? ? ?? ? ?refgcc_-m64_-march=native_-mtune=native_-Os_-fomit-frame-pointer2017091720170904
142828? ? ?? ? ?refgcc_-m64_-march=core-avx2_-Os_-fomit-frame-pointer2017091720170904
147224? ? ?? ? ?refgcc_-march=native_-mtune=native_-Os_-fomit-frame-pointer_-fwrapv2017091720170904
151266? ? ?? ? ?refgcc_-m64_-march=corei7-avx_-Os_-fomit-frame-pointer2017091720170904
181110? ? ?? ? ?reficc_-xCOMMON-AVX512_-O3_-fomit-frame-pointer2017091720170904
181796? ? ?? ? ?reficc_-xCORE-AVX2_-O3_-fomit-frame-pointer2017091720170904
181992? ? ?? ? ?reficc_-xCORE-AVX-I_-O3_-fomit-frame-pointer2017091720170904
182028? ? ?? ? ?reficc_-xCORE-AVX512_-O3_-fomit-frame-pointer2017091720170904
186372? ? ?? ? ?reficc2017091720170904
187830? ? ?? ? ?reficc_-xCOMMON-AVX512_-O2_-fomit-frame-pointer2017091720170904
188634? ? ?? ? ?reficc_-xCORE-AVX-I_-O2_-fomit-frame-pointer2017091720170904
188884? ? ?? ? ?reficc_-xCORE-AVX2_-O2_-fomit-frame-pointer2017091720170904
189474? ? ?? ? ?reficc_-xCORE-AVX512_-O2_-fomit-frame-pointer2017091720170904
399046? ? ?? ? ?refcc2017091720170904
403062? ? ?? ? ?refgcc_-funroll-loops2017091720170904
418118? ? ?? ? ?refgcc2017091720170904

Compiler output

Implementation: crypto_aead/aes256otrpv2/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/aes256otrpv2/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/aes256otrpv2/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