Implementation notes: amd64, gpu, crypto_kem/bigquake3

Computer: gpu
Architecture: amd64
CPU ID: GenuineIntel-000206d7-bfebfbff
SUPERCOP version: 20190816
Operation: crypto_kem
Primitive: bigquake3
TimeObject sizeTest sizeImplementationCompilerBenchmark dateSUPERCOP version
77986497? ? ?? ? ?refgcc_-fno-schedule-insns_-O3_-fomit-frame-pointer2019100820190816
7943855750807 0 4470738 808 2064refclang_-O3_-fwrapv_-mavx_-fomit-frame-pointer_-Qunused-arguments2019100820190816
7974434150807 0 4470738 808 2064refclang_-O3_-fwrapv_-mavx_-maes_-mpclmul_-fomit-frame-pointer_-Qunused-arguments2019100820190816
80673063? ? ?? ? ?refgcc_-m64_-march=corei7_-O3_-fomit-frame-pointer2019100820190816
80901795? ? ?? ? ?refgcc_-march=native_-mtune=native_-O3_-fomit-frame-pointer_-fwrapv2019100820190816
81459984? ? ?? ? ?refgcc_-march=nocona_-O3_-fomit-frame-pointer2019100820190816
82702068? ? ?? ? ?refgcc_-funroll-loops_-march=barcelona_-O3_-fomit-frame-pointer2019100820190816
82808328? ? ?? ? ?refgcc_-funroll-loops_-m64_-march=nocona_-O3_-fomit-frame-pointer2019100820190816
83340144? ? ?? ? ?refgcc_-m64_-march=core2_-O3_-fomit-frame-pointer2019100820190816
83568882? ? ?? ? ?refgcc_-funroll-loops_-march=k8_-O3_-fomit-frame-pointer2019100820190816
8402757050491 0 4472514 808 1744refclang_-O3_-fomit-frame-pointer_-Qunused-arguments2019100820190816
84079653? ? ?? ? ?refgcc_-funroll-loops_-m64_-march=k8_-O_-fomit-frame-pointer2019100820190816
84161541? ? ?? ? ?refgcc_-funroll-loops_-march=nocona_-O3_-fomit-frame-pointer2019100820190816
84684330? ? ?? ? ?refgcc_-funroll-loops_-fno-schedule-insns_-O3_-fomit-frame-pointer2019100820190816
86729016? ? ?? ? ?refgcc_-funroll-loops_-march=nocona_-O2_-fomit-frame-pointer2019100820190816
87631110? ? ?? ? ?refgcc_-funroll-loops_-march=barcelona_-O2_-fomit-frame-pointer2019100820190816
87734415? ? ?? ? ?refgcc_-funroll-loops_-m64_-march=barcelona_-O2_-fomit-frame-pointer2019100820190816
8811833151249 0 4474594 808 1744refclang_-mcpu=cortex-a9_-mfpu=neon_-O3_-fomit-frame-pointer_-fwrapv_-Qunused-arguments2019100820190816
8823473754227 0 4474826 808 2064refclang_-O3_-fwrapv_-march=native_-fomit-frame-pointer_-Qunused-arguments2019100820190816
89888856? ? ?? ? ?refgcc_-m64_-march=corei7-avx_-O3_-fomit-frame-pointer2019100820190816
90807021? ? ?? ? ?refgcc_-m64_-march=native_-mtune=native_-O3_-fomit-frame-pointer2019100820190816
91195182? ? ?? ? ?refgcc_-funroll-loops_-O_-fomit-frame-pointer2019100820190816
91703070? ? ?? ? ?refgcc_-O3_-fomit-frame-pointer2019100820190816
92233338? ? ?? ? ?refgcc_-funroll-loops_-m64_-march=k8_-O3_-fomit-frame-pointer2019100820190816
92290110? ? ?? ? ?refgcc_-funroll-loops_-march=nocona_-O_-fomit-frame-pointer2019100820190816
93142374? ? ?? ? ?refgcc_-march=k8_-O3_-fomit-frame-pointer2019100820190816
94666845? ? ?? ? ?refgcc_-funroll-loops_-fno-schedule-insns_-O2_-fomit-frame-pointer2019100820190816
95008599? ? ?? ? ?refgcc_-m64_-march=nocona_-O3_-fomit-frame-pointer2019100820190816
95232474? ? ?? ? ?refgcc_-funroll-loops_-m64_-march=barcelona_-O_-fomit-frame-pointer2019100820190816
95457912? ? ?? ? ?refgcc_-m64_-march=barcelona_-O2_-fomit-frame-pointer2019100820190816
95922201? ? ?? ? ?refgcc_-funroll-loops_-fno-schedule-insns_-O_-fomit-frame-pointer2019100820190816
96108897? ? ?? ? ?refgcc_-m64_-march=corei7-avx_-O2_-fomit-frame-pointer2019100820190816
96110196? ? ?? ? ?refgcc_-march=barcelona_-O2_-fomit-frame-pointer2019100820190816
96851655? ? ?? ? ?refgcc_-funroll-loops_-march=k8_-O2_-fomit-frame-pointer2019100820190816
96999252? ? ?? ? ?refgcc_-m64_-march=core2_-msse4_-O2_-fomit-frame-pointer2019100820190816
97607808? ? ?? ? ?refgcc_-funroll-loops_-m64_-O_-fomit-frame-pointer2019100820190816
99041466? ? ?? ? ?refgcc_-m64_-O2_-fomit-frame-pointer2019100820190816
99234141? ? ?? ? ?refgcc_-m64_-march=core-avx-i_-O3_-fomit-frame-pointer2019100820190816
100812972? ? ?? ? ?refgcc_-march=barcelona_-O3_-fomit-frame-pointer2019100820190816
101238165? ? ?? ? ?refgcc_-funroll-loops_-m64_-march=nocona_-O2_-fomit-frame-pointer2019100820190816
101657265? ? ?? ? ?refgcc_-fno-schedule-insns_-O2_-fomit-frame-pointer2019100820190816
102110379? ? ?? ? ?refgcc_-O2_-fomit-frame-pointer2019100820190816
102899037? ? ?? ? ?refgcc_-funroll-loops_-O2_-fomit-frame-pointer2019100820190816
103403901? ? ?? ? ?refgcc_-funroll-loops_-march=barcelona_-O_-fomit-frame-pointer2019100820190816
103857423? ? ?? ? ?refgcc_-m64_-march=core2_-msse4_-O3_-fomit-frame-pointer2019100820190816
104323500? ? ?? ? ?refgcc_-funroll-loops_-m64_-march=barcelona_-O3_-fomit-frame-pointer2019100820190816
104643639? ? ?? ? ?refgcc_-m64_-march=core-avx-i_-O2_-fomit-frame-pointer2019100820190816
105163164? ? ?? ? ?refgcc_-m64_-march=k8_-O3_-fomit-frame-pointer2019100820190816
10516836051249 0 4474594 808 1744refclang_-mcpu=cortex-a8_-mfpu=neon_-O3_-fomit-frame-pointer_-fwrapv_-Qunused-arguments2019100820190816
106021644? ? ?? ? ?refgcc_-m64_-march=barcelona_-O3_-fomit-frame-pointer2019100820190816
10623766551249 0 4474594 808 1744refclang_-mcpu=native_-mfpu=neon_-O3_-fomit-frame-pointer_-fwrapv_-Qunused-arguments2019100820190816
106940691? ? ?? ? ?refgcc_-m64_-march=nocona_-O_-fomit-frame-pointer2019100820190816
107613234? ? ?? ? ?refgcc_-funroll-loops_-m64_-march=nocona_-O_-fomit-frame-pointer2019100820190816
107908407? ? ?? ? ?refgcc_-funroll-loops_-march=k8_-O_-fomit-frame-pointer2019100820190816
107913438? ? ?? ? ?refgcc_-m64_-march=core2_-msse4.1_-O2_-fomit-frame-pointer2019100820190816
108504672? ? ?? ? ?refgcc_-m64_-march=nocona_-O2_-fomit-frame-pointer2019100820190816
108602706? ? ?? ? ?refgcc_-m64_-march=core2_-O2_-fomit-frame-pointer2019100820190816
108788688? ? ?? ? ?refgcc_-m64_-march=k8_-O2_-fomit-frame-pointer2019100820190816
109631487? ? ?? ? ?refgcc_-funroll-loops_-m64_-O2_-fomit-frame-pointer2019100820190816
109672218? ? ?? ? ?refgcc_-march=nocona_-O2_-fomit-frame-pointer2019100820190816
111343830? ? ?? ? ?refgcc_-funroll-loops_-m64_-march=k8_-O2_-fomit-frame-pointer2019100820190816
11152439154227 0 4474826 808 2064refclang_-march=native_-O3_-fomit-frame-pointer_-fwrapv_-Qunused-arguments2019100820190816
111733257? ? ?? ? ?refgcc_-funroll-loops_-m64_-O3_-fomit-frame-pointer2019100820190816
113498874? ? ?? ? ?refgcc_-m64_-O_-fomit-frame-pointer2019100820190816
113647887? ? ?? ? ?refgcc_-funroll-loops_-march=k8_-Os_-fomit-frame-pointer2019100820190816
113950095? ? ?? ? ?refgcc_-funroll-loops_-Os_-fomit-frame-pointer2019100820190816
114378210? ? ?? ? ?refgcc_-m64_-march=core2_-O_-fomit-frame-pointer2019100820190816
114440676? ? ?? ? ?refgcc_-m64_-march=native_-mtune=native_-O2_-fomit-frame-pointer2019100820190816
114591681? ? ?? ? ?refgcc_-funroll-loops_-O3_-fomit-frame-pointer2019100820190816
114715311? ? ?? ? ?refgcc_-m64_-Os_-fomit-frame-pointer2019100820190816
115494732? ? ?? ? ?refgcc_-m64_-march=core2_-msse4.1_-Os_-fomit-frame-pointer2019100820190816
116689428? ? ?? ? ?refgcc_-m64_-march=nocona_-Os_-fomit-frame-pointer2019100820190816
116833617? ? ?? ? ?refgcc_-m64_-march=native_-mtune=native_-O_-fomit-frame-pointer2019100820190816
117269619? ? ?? ? ?refgcc_-m64_-march=native_-mtune=native_-Os_-fomit-frame-pointer2019100820190816
117517542? ? ?? ? ?refgcc_-m64_-march=core-avx-i_-Os_-fomit-frame-pointer2019100820190816
117993297? ? ?? ? ?refgcc_-m64_-march=core2_-msse4_-Os_-fomit-frame-pointer2019100820190816
118128699? ? ?? ? ?refgcc_-funroll-loops_-fno-schedule-insns_-Os_-fomit-frame-pointer2019100820190816
118307073? ? ?? ? ?refgcc_-m64_-march=core2_-msse4_-O_-fomit-frame-pointer2019100820190816
118539858? ? ?? ? ?refgcc_-m64_-O3_-fomit-frame-pointer2019100820190816
118696569? ? ?? ? ?refgcc_-march=k8_-Os_-fomit-frame-pointer2019100820190816
118699884? ? ?? ? ?refgcc_-march=native_-mtune=native_-O_-fomit-frame-pointer_-fwrapv2019100820190816
119688546? ? ?? ? ?refgcc_-m64_-march=core2_-msse4.1_-O3_-fomit-frame-pointer2019100820190816
120714648? ? ?? ? ?refgcc_-march=k8_-O_-fomit-frame-pointer2019100820190816
120726957? ? ?? ? ?refgcc_-march=barcelona_-O_-fomit-frame-pointer2019100820190816
121707885? ? ?? ? ?refgcc_-march=k8_-O2_-fomit-frame-pointer2019100820190816
122525808? ? ?? ? ?refgcc_-march=nocona_-Os_-fomit-frame-pointer2019100820190816
122591316? ? ?? ? ?refgcc_-march=nocona_-O_-fomit-frame-pointer2019100820190816
122646597? ? ?? ? ?refgcc_-funroll-loops_-m64_-march=barcelona_-Os_-fomit-frame-pointer2019100820190816
122868081? ? ?? ? ?refgcc_-funroll-loops_-m64_-march=nocona_-Os_-fomit-frame-pointer2019100820190816
123564309? ? ?? ? ?refgcc_-m64_-march=barcelona_-O_-fomit-frame-pointer2019100820190816
123883095? ? ?? ? ?refgcc_-funroll-loops_-march=nocona_-Os_-fomit-frame-pointer2019100820190816
124137444? ? ?? ? ?refgcc_-march=native_-mtune=native_-O2_-fomit-frame-pointer_-fwrapv2019100820190816
124975887? ? ?? ? ?refgcc_-funroll-loops_-m64_-Os_-fomit-frame-pointer2019100820190816
125174952? ? ?? ? ?refgcc_-m64_-march=corei7-avx_-O_-fomit-frame-pointer2019100820190816
125587791? ? ?? ? ?refgcc_-march=barcelona_-Os_-fomit-frame-pointer2019100820190816
125710344? ? ?? ? ?refgcc_-m64_-march=corei7_-O2_-fomit-frame-pointer2019100820190816
126416169? ? ?? ? ?refgcc_-m64_-march=k8_-Os_-fomit-frame-pointer2019100820190816
126891252? ? ?? ? ?refgcc_-Os_-fomit-frame-pointer2019100820190816
127119897? ? ?? ? ?refgcc_-fno-schedule-insns_-Os_-fomit-frame-pointer2019100820190816
128066847? ? ?? ? ?refgcc_-fno-schedule-insns_-O_-fomit-frame-pointer2019100820190816
130820568? ? ?? ? ?refgcc_-funroll-loops_-march=barcelona_-Os_-fomit-frame-pointer2019100820190816
130883322? ? ?? ? ?refgcc_-m64_-march=k8_-O_-fomit-frame-pointer2019100820190816
132777168? ? ?? ? ?refgcc_-march=native_-mtune=native_-Os_-fomit-frame-pointer_-fwrapv2019100820190816
134063853? ? ?? ? ?refgcc_-m64_-march=corei7-avx_-Os_-fomit-frame-pointer2019100820190816
134193897? ? ?? ? ?refgcc_-O_-fomit-frame-pointer2019100820190816
136644030? ? ?? ? ?refgcc_-m64_-march=corei7_-Os_-fomit-frame-pointer2019100820190816
137578737? ? ?? ? ?refgcc_-m64_-march=core2_-msse4.1_-O_-fomit-frame-pointer2019100820190816
138099666? ? ?? ? ?refgcc_-m64_-march=corei7_-O_-fomit-frame-pointer2019100820190816
140685252? ? ?? ? ?refgcc_-m64_-march=core2_-Os_-fomit-frame-pointer2019100820190816
144441042? ? ?? ? ?refgcc_-m64_-march=barcelona_-Os_-fomit-frame-pointer2019100820190816
144494355? ? ?? ? ?refgcc_-funroll-loops_-m64_-march=k8_-Os_-fomit-frame-pointer2019100820190816
148430175? ? ?? ? ?refgcc_-m64_-march=core-avx-i_-O_-fomit-frame-pointer2019100820190816
307624635? ? ?? ? ?refgcc2019100820190816
310061310? ? ?? ? ?refgcc_-funroll-loops2019100820190816
318580617? ? ?? ? ?refcc2019100820190816

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