Implementation notes: amd64, genji441, crypto_aead/cba8

Computer: genji441
Architecture: amd64
CPU ID: GenuineIntel-000406f1-bfebfbff
SUPERCOP version: 20180818
Operation: crypto_aead
Primitive: cba8
TimeObject sizeTest sizeImplementationCompilerBenchmark dateSUPERCOP version
184404? ? ?? ? ?reficc_-xCORE-AVX2_-O3_-fomit-frame-pointer2018081920180818
184472? ? ?? ? ?reficc_-xCORE-AVX2_-O2_-fomit-frame-pointer2018081920180818
186488? ? ?? ? ?reficc_-xSSE4.2_-O3_-fomit-frame-pointer2018081920180818
186660? ? ?? ? ?reficc_-xAVX_-O3_-fomit-frame-pointer2018081920180818
186780? ? ?? ? ?reficc_-xSSE4.1_-O3_-fomit-frame-pointer2018081920180818
186948? ? ?? ? ?reficc_-xCORE-AVX-I_-O3_-fomit-frame-pointer2018081920180818
187816? ? ?? ? ?reficc_-xAVX_-O2_-fomit-frame-pointer2018081920180818
187948? ? ?? ? ?reficc_-xSSE4.1_-O2_-fomit-frame-pointer2018081920180818
188076? ? ?? ? ?reficc_-xSSE4.2_-O2_-fomit-frame-pointer2018081920180818
188408? ? ?? ? ?reficc2018081920180818
188728? ? ?? ? ?reficc_-xCORE-AVX-I_-O2_-fomit-frame-pointer2018081920180818
190804? ? ?? ? ?refgcc_-funroll-loops_-m64_-march=barcelona_-O3_-fomit-frame-pointer2018081920180818
191124? ? ?? ? ?refgcc_-march=barcelona_-O3_-fomit-frame-pointer2018081920180818
191152? ? ?? ? ?refgcc_-funroll-loops_-m64_-march=k8_-O3_-fomit-frame-pointer2018081920180818
191196? ? ?? ? ?refgcc_-m64_-march=k8_-O3_-fomit-frame-pointer2018081920180818
191352? ? ?? ? ?refgcc_-funroll-loops_-march=barcelona_-O3_-fomit-frame-pointer2018081920180818
191396? ? ?? ? ?refgcc_-m64_-march=barcelona_-O3_-fomit-frame-pointer2018081920180818
191532? ? ?? ? ?refgcc_-march=k8_-O3_-fomit-frame-pointer2018081920180818
191552? ? ?? ? ?refgcc_-funroll-loops_-march=k8_-O3_-fomit-frame-pointer2018081920180818
191612? ? ?? ? ?refgcc_-march=nocona_-O3_-fomit-frame-pointer2018081920180818
191668? ? ?? ? ?refgcc_-m64_-march=native_-mtune=native_-O3_-fomit-frame-pointer2018081920180818
191692? ? ?? ? ?refgcc_-m64_-march=core2_-O3_-fomit-frame-pointer2018081920180818
191700? ? ?? ? ?refgcc_-m64_-march=core-avx-i_-O3_-fomit-frame-pointer2018081920180818
191700? ? ?? ? ?refgcc_-m64_-march=nocona_-O3_-fomit-frame-pointer2018081920180818
191868? ? ?? ? ?refgcc_-m64_-march=core-avx2_-O3_-fomit-frame-pointer2018081920180818
192132? ? ?? ? ?refgcc_-m64_-march=corei7_-O3_-fomit-frame-pointer2018081920180818
192232? ? ?? ? ?refgcc_-m64_-march=core2_-msse4.1_-O3_-fomit-frame-pointer2018081920180818
192268? ? ?? ? ?refgcc_-funroll-loops_-m64_-march=nocona_-O3_-fomit-frame-pointer2018081920180818
192348? ? ?? ? ?refgcc_-m64_-march=core2_-msse4_-O3_-fomit-frame-pointer2018081920180818
192844? ? ?? ? ?refgcc_-funroll-loops_-m64_-O3_-fomit-frame-pointer2018081920180818
192948? ? ?? ? ?refgcc_-fno-schedule-insns_-O3_-fomit-frame-pointer2018081920180818
193028? ? ?? ? ?refgcc_-O3_-fomit-frame-pointer2018081920180818
193028? ? ?? ? ?refgcc_-march=native_-mtune=native_-O3_-fomit-frame-pointer_-fwrapv2018081920180818
193040? ? ?? ? ?refgcc_-funroll-loops_-fno-schedule-insns_-O3_-fomit-frame-pointer2018081920180818
193228? ? ?? ? ?refgcc_-m64_-O3_-fomit-frame-pointer2018081920180818
194028? ? ?? ? ?refgcc_-funroll-loops_-O3_-fomit-frame-pointer2018081920180818
195396? ? ?? ? ?refgcc_-funroll-loops_-m64_-march=nocona_-O2_-fomit-frame-pointer2018081920180818
196160? ? ?? ? ?refgcc_-funroll-loops_-O2_-fomit-frame-pointer2018081920180818
196372? ? ?? ? ?refgcc_-funroll-loops_-m64_-O2_-fomit-frame-pointer2018081920180818
196408? ? ?? ? ?refgcc_-funroll-loops_-march=nocona_-O2_-fomit-frame-pointer2018081920180818
196448? ? ?? ? ?refgcc_-funroll-loops_-fno-schedule-insns_-O2_-fomit-frame-pointer2018081920180818
196932? ? ?? ? ?refgcc_-funroll-loops_-m64_-march=barcelona_-O2_-fomit-frame-pointer2018081920180818
196932? ? ?? ? ?refgcc_-funroll-loops_-march=barcelona_-O_-fomit-frame-pointer2018081920180818
196940? ? ?? ? ?refgcc_-funroll-loops_-march=k8_-O2_-fomit-frame-pointer2018081920180818
197096? ? ?? ? ?refgcc_-funroll-loops_-march=barcelona_-O2_-fomit-frame-pointer2018081920180818
197152? ? ?? ? ?refgcc_-funroll-loops_-m64_-march=barcelona_-O_-fomit-frame-pointer2018081920180818
197224? ? ?? ? ?refgcc_-funroll-loops_-march=k8_-O_-fomit-frame-pointer2018081920180818
197500? ? ?? ? ?refgcc_-funroll-loops_-m64_-O_-fomit-frame-pointer2018081920180818
197524? ? ?? ? ?refgcc_-funroll-loops_-O_-fomit-frame-pointer2018081920180818
197528? ? ?? ? ?refgcc_-funroll-loops_-m64_-march=k8_-O2_-fomit-frame-pointer2018081920180818
197568? ? ?? ? ?refgcc_-funroll-loops_-m64_-march=k8_-O_-fomit-frame-pointer2018081920180818
197716? ? ?? ? ?refgcc_-funroll-loops_-m64_-march=nocona_-O_-fomit-frame-pointer2018081920180818
197976? ? ?? ? ?refgcc_-funroll-loops_-march=nocona_-O_-fomit-frame-pointer2018081920180818
198408? ? ?? ? ?refgcc_-funroll-loops_-fno-schedule-insns_-O_-fomit-frame-pointer2018081920180818
203560? ? ?? ? ?refgcc_-m64_-march=corei7_-O2_-fomit-frame-pointer2018081920180818
203788? ? ?? ? ?refgcc_-m64_-march=core-avx2_-O2_-fomit-frame-pointer2018081920180818
203816? ? ?? ? ?reficc_-no-vec2018081920180818
203872? ? ?? ? ?refgcc_-march=native_-mtune=native_-O2_-fomit-frame-pointer_-fwrapv2018081920180818
203892? ? ?? ? ?refgcc_-m64_-march=native_-mtune=native_-O2_-fomit-frame-pointer2018081920180818
204172? ? ?? ? ?refgcc_-m64_-O2_-fomit-frame-pointer2018081920180818
204288? ? ?? ? ?refgcc_-m64_-march=barcelona_-O2_-fomit-frame-pointer2018081920180818
204340? ? ?? ? ?refgcc_-O2_-fomit-frame-pointer2018081920180818
204636? ? ?? ? ?refgcc_-fno-schedule-insns_-O2_-fomit-frame-pointer2018081920180818
204740? ? ?? ? ?refgcc_-m64_-march=core-avx-i_-O2_-fomit-frame-pointer2018081920180818
205124? ? ?? ? ?refgcc_-m64_-march=corei7-avx_-O2_-fomit-frame-pointer2018081920180818
206404? ? ?? ? ?refgcc_-march=barcelona_-O2_-fomit-frame-pointer2018081920180818
206532? ? ?? ? ?refgcc_-m64_-march=core2_-msse4_-O2_-fomit-frame-pointer2018081920180818
206796? ? ?? ? ?refgcc_-m64_-march=core2_-msse4.1_-O2_-fomit-frame-pointer2018081920180818
206900? ? ?? ? ?refgcc_-march=nocona_-O2_-fomit-frame-pointer2018081920180818
207028? ? ?? ? ?refgcc_-m64_-march=nocona_-O2_-fomit-frame-pointer2018081920180818
207780? ? ?? ? ?refgcc_-m64_-march=core2_-O2_-fomit-frame-pointer2018081920180818
208736? ? ?? ? ?refgcc_-m64_-march=k8_-O2_-fomit-frame-pointer2018081920180818
208796? ? ?? ? ?refgcc_-march=k8_-O2_-fomit-frame-pointer2018081920180818
210516? ? ?? ? ?refgcc_-funroll-loops_-m64_-Os_-fomit-frame-pointer2018081920180818
210632? ? ?? ? ?refgcc_-Os_-fomit-frame-pointer2018081920180818
210832? ? ?? ? ?refgcc_-march=k8_-O_-fomit-frame-pointer2018081920180818
210848? ? ?? ? ?refgcc_-march=native_-mtune=native_-Os_-fomit-frame-pointer_-fwrapv2018081920180818
210860? ? ?? ? ?refgcc_-march=native_-mtune=native_-O_-fomit-frame-pointer_-fwrapv2018081920180818
210908? ? ?? ? ?refgcc_-fno-schedule-insns_-Os_-fomit-frame-pointer2018081920180818
210912? ? ?? ? ?refgcc_-funroll-loops_-fno-schedule-insns_-Os_-fomit-frame-pointer2018081920180818
210924? ? ?? ? ?refgcc_-m64_-march=core-avx2_-Os_-fomit-frame-pointer2018081920180818
210976? ? ?? ? ?refgcc_-m64_-Os_-fomit-frame-pointer2018081920180818
211056? ? ?? ? ?refgcc_-m64_-march=corei7_-Os_-fomit-frame-pointer2018081920180818
211108? ? ?? ? ?refgcc_-m64_-march=core2_-msse4.1_-Os_-fomit-frame-pointer2018081920180818
211108? ? ?? ? ?refgcc_-m64_-march=native_-mtune=native_-Os_-fomit-frame-pointer2018081920180818
211120? ? ?? ? ?refgcc_-m64_-march=core-avx-i_-Os_-fomit-frame-pointer2018081920180818
211140? ? ?? ? ?refgcc_-m64_-march=k8_-O_-fomit-frame-pointer2018081920180818
211148? ? ?? ? ?refgcc_-m64_-march=k8_-Os_-fomit-frame-pointer2018081920180818
211180? ? ?? ? ?refgcc_-funroll-loops_-Os_-fomit-frame-pointer2018081920180818
211184? ? ?? ? ?refgcc_-m64_-march=core2_-msse4_-Os_-fomit-frame-pointer2018081920180818
211204? ? ?? ? ?refgcc_-m64_-march=corei7-avx_-Os_-fomit-frame-pointer2018081920180818
211216? ? ?? ? ?refgcc_-m64_-march=core2_-Os_-fomit-frame-pointer2018081920180818
211216? ? ?? ? ?refgcc_-m64_-march=nocona_-Os_-fomit-frame-pointer2018081920180818
211216? ? ?? ? ?refgcc_-march=nocona_-Os_-fomit-frame-pointer2018081920180818
211252? ? ?? ? ?refgcc_-march=k8_-Os_-fomit-frame-pointer2018081920180818
211284? ? ?? ? ?refgcc_-m64_-march=barcelona_-Os_-fomit-frame-pointer2018081920180818
211300? ? ?? ? ?refgcc_-m64_-march=core-avx2_-O_-fomit-frame-pointer2018081920180818
211300? ? ?? ? ?refgcc_-march=barcelona_-Os_-fomit-frame-pointer2018081920180818
211364? ? ?? ? ?refgcc_-m64_-march=barcelona_-O_-fomit-frame-pointer2018081920180818
211416? ? ?? ? ?refgcc_-m64_-march=native_-mtune=native_-O_-fomit-frame-pointer2018081920180818
211488? ? ?? ? ?refgcc_-m64_-march=core2_-msse4.1_-O_-fomit-frame-pointer2018081920180818
211508? ? ?? ? ?refgcc_-march=nocona_-O_-fomit-frame-pointer2018081920180818
211544? ? ?? ? ?refgcc_-m64_-march=core2_-msse4_-O_-fomit-frame-pointer2018081920180818
211552? ? ?? ? ?refgcc_-O_-fomit-frame-pointer2018081920180818
211692? ? ?? ? ?refgcc_-m64_-march=corei7_-O_-fomit-frame-pointer2018081920180818
211776? ? ?? ? ?refgcc_-funroll-loops_-march=nocona_-Os_-fomit-frame-pointer2018081920180818
211788? ? ?? ? ?refgcc_-m64_-march=nocona_-O_-fomit-frame-pointer2018081920180818
211924? ? ?? ? ?refgcc_-m64_-O_-fomit-frame-pointer2018081920180818
212044? ? ?? ? ?refgcc_-fno-schedule-insns_-O_-fomit-frame-pointer2018081920180818
212108? ? ?? ? ?refgcc_-m64_-march=core-avx-i_-O_-fomit-frame-pointer2018081920180818
212356? ? ?? ? ?refgcc_-funroll-loops_-m64_-march=k8_-Os_-fomit-frame-pointer2018081920180818
212480? ? ?? ? ?refgcc_-m64_-march=corei7-avx_-O_-fomit-frame-pointer2018081920180818
212688? ? ?? ? ?refgcc_-funroll-loops_-march=k8_-Os_-fomit-frame-pointer2018081920180818
212772? ? ?? ? ?refgcc_-funroll-loops_-march=barcelona_-Os_-fomit-frame-pointer2018081920180818
212840? ? ?? ? ?refgcc_-funroll-loops_-m64_-march=barcelona_-Os_-fomit-frame-pointer2018081920180818
213168? ? ?? ? ?refgcc_-m64_-march=core2_-O_-fomit-frame-pointer2018081920180818
213508? ? ?? ? ?refgcc_-funroll-loops_-m64_-march=nocona_-Os_-fomit-frame-pointer2018081920180818
217512? ? ?? ? ?refgcc_-funroll-loops_-march=nocona_-O3_-fomit-frame-pointer2018081920180818
226076? ? ?? ? ?refgcc_-m64_-march=corei7-avx_-O3_-fomit-frame-pointer2018081920180818
248484? ? ?? ? ?refgcc_-march=barcelona_-O_-fomit-frame-pointer2018081920180818
355812? ? ?? ? ?refgcc2018081920180818
359368? ? ?? ? ?refgcc_-funroll-loops2018081920180818
363684? ? ?? ? ?refcc2018081920180818

Compiler output

Implementation: ref
Security model: unknown
Compiler: gcc -O2 -fomit-frame-pointer
encrypt.c: encrypt.c: In function 'enc':
encrypt.c: encrypt.c:241:17: warning: argument 1 range [9223372036854775808, 18446744073709551615] exceeds maximum object size 9223372036854775807 [-Walloc-size-larger-than=]
encrypt.c: unsigned char C_0[inbytes];
encrypt.c: ^~~
encrypt.c: encrypt.c:241:17: note: in a call to built-in allocation function '__builtin_alloca_with_align'

Number of similar (compiler,implementation) pairs: 100, namely:
CompilerImplementations
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 -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=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
encrypt.c: encrypt.c: In function 'enc':
encrypt.c: encrypt.c:241:17: warning: argument 1 range [9223372036854775808, 18446744073709551615] exceeds maximum object size 9223372036854775807 [-Walloc-size-larger-than=]
encrypt.c: unsigned char C_0[inbytes];
encrypt.c: ^~~
encrypt.c: encrypt.c:241:17: note: in a call to built-in allocation function '__builtin_alloca_with_align'
encrypt.c: encrypt.c: In function 'enc':
encrypt.c: encrypt.c:241:17: warning: argument 1 range [9223372036854775808, 18446744073709551615] exceeds maximum object size 9223372036854775807 [-Walloc-size-larger-than=]
encrypt.c: unsigned char C_0[inbytes];
encrypt.c: ^~~
encrypt.c: encrypt.c:241:17: note: in a call to built-in allocation function '__builtin_alloca_with_align'

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