Implementation notes: amd64, genji154, crypto_aead/aes128otrsv2

Computer: genji154
Architecture: amd64
CPU ID: GenuineIntel-00050671-bfebfbff
SUPERCOP version: 20170228
Operation: crypto_aead
Primitive: aes128otrsv2
TimeObject sizeTest sizeImplementationCompilerBenchmark dateSUPERCOP version
151957? ? ?? ? ?refgcc_-funroll-loops_-m64_-march=barcelona_-O2_-fomit-frame-pointer2017022620170105
152100? ? ?? ? ?refgcc_-funroll-loops_-march=barcelona_-O2_-fomit-frame-pointer2017022620170105
153127? ? ?? ? ?refgcc_-funroll-loops_-fno-schedule-insns_-O2_-fomit-frame-pointer2017022620170105
153387? ? ?? ? ?refgcc_-funroll-loops_-m64_-O2_-fomit-frame-pointer2017022620170105
153465? ? ?? ? ?refgcc_-funroll-loops_-m64_-march=k8_-O2_-fomit-frame-pointer2017022620170105
153608? ? ?? ? ?refgcc_-funroll-loops_-O2_-fomit-frame-pointer2017022620170105
153855? ? ?? ? ?refgcc_-funroll-loops_-march=k8_-O2_-fomit-frame-pointer2017022620170105
153920? ? ?? ? ?refgcc_-funroll-loops_-march=nocona_-O2_-fomit-frame-pointer2017022620170105
153959? ? ?? ? ?refgcc_-O3_-fomit-frame-pointer2017022620170105
153972? ? ?? ? ?refgcc_-fno-schedule-insns_-O3_-fomit-frame-pointer2017022620170105
154128? ? ?? ? ?refgcc_-m64_-O3_-fomit-frame-pointer2017022620170105
154570? ? ?? ? ?refgcc_-funroll-loops_-march=k8_-O3_-fomit-frame-pointer2017022620170105
154674? ? ?? ? ?refgcc_-funroll-loops_-m64_-march=nocona_-O2_-fomit-frame-pointer2017022620170105
155051? ? ?? ? ?refgcc_-funroll-loops_-fno-schedule-insns_-O3_-fomit-frame-pointer2017022620170105
155142? ? ?? ? ?refgcc_-funroll-loops_-m64_-O3_-fomit-frame-pointer2017022620170105
155155? ? ?? ? ?refgcc_-funroll-loops_-m64_-march=k8_-O3_-fomit-frame-pointer2017022620170105
155194? ? ?? ? ?refgcc_-funroll-loops_-O3_-fomit-frame-pointer2017022620170105
155428? ? ?? ? ?refgcc_-march=nocona_-O3_-fomit-frame-pointer2017022620170105
155454? ? ?? ? ?refgcc_-m64_-march=nocona_-O3_-fomit-frame-pointer2017022620170105
155532? ? ?? ? ?refgcc_-funroll-loops_-m64_-march=nocona_-O3_-fomit-frame-pointer2017022620170105
155792? ? ?? ? ?refgcc_-funroll-loops_-m64_-march=barcelona_-O3_-fomit-frame-pointer2017022620170105
155870? ? ?? ? ?refgcc_-funroll-loops_-march=barcelona_-O3_-fomit-frame-pointer2017022620170105
156143? ? ?? ? ?refgcc_-funroll-loops_-march=nocona_-O3_-fomit-frame-pointer2017022620170105
158080? ? ?? ? ?refgcc_-march=barcelona_-O3_-fomit-frame-pointer2017022620170105
158327? ? ?? ? ?refgcc_-m64_-march=barcelona_-O3_-fomit-frame-pointer2017022620170105
158860? ? ?? ? ?refgcc_-march=native_-mtune=native_-O3_-fomit-frame-pointer_-fwrapv2017022620170105
159003? ? ?? ? ?refgcc_-m64_-march=core-avx-i_-O3_-fomit-frame-pointer2017022620170105
159055? ? ?? ? ?refgcc_-m64_-march=corei7-avx_-O3_-fomit-frame-pointer2017022620170105
159302? ? ?? ? ?refgcc_-m64_-march=k8_-O3_-fomit-frame-pointer2017022620170105
159614? ? ?? ? ?refgcc_-march=k8_-O3_-fomit-frame-pointer2017022620170105
160121? ? ?? ? ?refgcc_-m64_-march=core2_-msse4_-O3_-fomit-frame-pointer2017022620170105
160381? ? ?? ? ?refgcc_-m64_-march=core2_-msse4.1_-O3_-fomit-frame-pointer2017022620170105
160641? ? ?? ? ?refgcc_-m64_-march=core2_-O3_-fomit-frame-pointer2017022620170105
160654? ? ?? ? ?refgcc_-m64_-march=corei7_-O3_-fomit-frame-pointer2017022620170105
166270? ? ?? ? ?refgcc_-m64_-march=core-avx2_-O3_-fomit-frame-pointer2017022620170105
173147? ? ?? ? ?refgcc_-m64_-march=native_-mtune=native_-O3_-fomit-frame-pointer2017022620170105
179322? ? ?? ? ?refgcc_-funroll-loops_-O_-fomit-frame-pointer2017022620170105
179491? ? ?? ? ?refgcc_-funroll-loops_-m64_-O_-fomit-frame-pointer2017022620170105
179894? ? ?? ? ?refgcc_-funroll-loops_-m64_-march=nocona_-O_-fomit-frame-pointer2017022620170105
180089? ? ?? ? ?refgcc_-funroll-loops_-march=nocona_-O_-fomit-frame-pointer2017022620170105
180206? ? ?? ? ?refgcc_-funroll-loops_-fno-schedule-insns_-O_-fomit-frame-pointer2017022620170105
184691? ? ?? ? ?refgcc_-funroll-loops_-march=k8_-O_-fomit-frame-pointer2017022620170105
184704? ? ?? ? ?refgcc_-funroll-loops_-m64_-march=k8_-O_-fomit-frame-pointer2017022620170105
184847? ? ?? ? ?refgcc_-funroll-loops_-m64_-march=barcelona_-O_-fomit-frame-pointer2017022620170105
184860? ? ?? ? ?refgcc_-funroll-loops_-march=barcelona_-O_-fomit-frame-pointer2017022620170105
187902? ? ?? ? ?refclang_-O3_-fwrapv_-mavx_-fomit-frame-pointer_-Qunused-arguments2017041020170228
188318? ? ?? ? ?refclang_-O3_-fwrapv_-mavx_-maes_-mpclmul_-fomit-frame-pointer_-Qunused-arguments2017041020170228
188669? ? ?? ? ?reficc_-no-vec2017022620170105
189306? ? ?? ? ?refgcc_-m64_-march=nocona_-O2_-fomit-frame-pointer2017022620170105
189397? ? ?? ? ?refgcc_-O2_-fomit-frame-pointer2017022620170105
189423? ? ?? ? ?refgcc_-m64_-O2_-fomit-frame-pointer2017022620170105
190034? ? ?? ? ?refgcc_-fno-schedule-insns_-O2_-fomit-frame-pointer2017022620170105
192517? ? ?? ? ?refclang_-O3_-fomit-frame-pointer_-Qunused-arguments2017041020170228
192569? ? ?? ? ?refclang_-mcpu=cortex-a9_-mfpu=neon_-O3_-fomit-frame-pointer_-fwrapv_-Qunused-arguments2017041020170228
192608? ? ?? ? ?refclang_-mcpu=cortex-a8_-mfpu=neon_-O3_-fomit-frame-pointer_-fwrapv_-Qunused-arguments2017041020170228
192777? ? ?? ? ?refclang_-mcpu=native_-mfpu=neon_-O3_-fomit-frame-pointer_-fwrapv_-Qunused-arguments2017041020170228
192868? ? ?? ? ?refgcc_-march=native_-mtune=native_-O2_-fomit-frame-pointer_-fwrapv2017022620170105
194532? ? ?? ? ?refgcc_-m64_-march=core2_-msse4_-O2_-fomit-frame-pointer2017022620170105
194662? ? ?? ? ?refgcc_-m64_-march=core2_-msse4.1_-O2_-fomit-frame-pointer2017022620170105
195442? ? ?? ? ?refgcc_-m64_-march=corei7-avx_-O2_-fomit-frame-pointer2017022620170105
195559? ? ?? ? ?refgcc_-m64_-march=corei7_-O2_-fomit-frame-pointer2017022620170105
195611? ? ?? ? ?refgcc_-m64_-march=core2_-O2_-fomit-frame-pointer2017022620170105
196014? ? ?? ? ?refgcc_-m64_-march=core-avx-i_-O2_-fomit-frame-pointer2017022620170105
198198? ? ?? ? ?refgcc_-march=k8_-O2_-fomit-frame-pointer2017022620170105
198328? ? ?? ? ?refgcc_-m64_-march=k8_-O2_-fomit-frame-pointer2017022620170105
198419? ? ?? ? ?refgcc_-march=barcelona_-O2_-fomit-frame-pointer2017022620170105
199121? ? ?? ? ?refgcc_-m64_-march=barcelona_-O2_-fomit-frame-pointer2017022620170105
200330? ? ?? ? ?refgcc_-m64_-march=core-avx2_-O2_-fomit-frame-pointer2017022620170105
201539? ? ?? ? ?refgcc_-march=nocona_-O2_-fomit-frame-pointer2017022620170105
205426? ? ?? ? ?refgcc_-m64_-march=native_-mtune=native_-O2_-fomit-frame-pointer2017022620170105
211705? ? ?? ? ?refgcc_-m64_-march=nocona_-O_-fomit-frame-pointer2017022620170105
212043? ? ?? ? ?refgcc_-m64_-march=native_-mtune=native_-O_-fomit-frame-pointer2017022620170105
212134? ? ?? ? ?refgcc_-march=nocona_-O_-fomit-frame-pointer2017022620170105
212589? ? ?? ? ?refgcc_-O_-fomit-frame-pointer2017022620170105
212693? ? ?? ? ?refgcc_-m64_-O_-fomit-frame-pointer2017022620170105
212706? ? ?? ? ?refgcc_-m64_-march=core2_-O_-fomit-frame-pointer2017022620170105
212719? ? ?? ? ?refgcc_-march=native_-mtune=native_-O_-fomit-frame-pointer_-fwrapv2017022620170105
212732? ? ?? ? ?refgcc_-m64_-march=core-avx-i_-O_-fomit-frame-pointer2017022620170105
212797? ? ?? ? ?refgcc_-m64_-march=core2_-msse4_-O_-fomit-frame-pointer2017022620170105
212888? ? ?? ? ?refgcc_-m64_-march=barcelona_-Os_-fomit-frame-pointer2017022620170105
213161? ? ?? ? ?refgcc_-march=barcelona_-Os_-fomit-frame-pointer2017022620170105
213174? ? ?? ? ?refgcc_-funroll-loops_-m64_-march=k8_-Os_-fomit-frame-pointer2017022620170105
213265? ? ?? ? ?refgcc_-m64_-march=corei7-avx_-O_-fomit-frame-pointer2017022620170105
213421? ? ?? ? ?refgcc_-fno-schedule-insns_-Os_-fomit-frame-pointer2017022620170105
213434? ? ?? ? ?refgcc_-m64_-march=core2_-msse4.1_-O_-fomit-frame-pointer2017022620170105
213499? ? ?? ? ?refgcc_-m64_-march=corei7_-O_-fomit-frame-pointer2017022620170105
213525? ? ?? ? ?refgcc_-fno-schedule-insns_-O_-fomit-frame-pointer2017022620170105
213746? ? ?? ? ?refgcc_-funroll-loops_-march=k8_-Os_-fomit-frame-pointer2017022620170105
213759? ? ?? ? ?refgcc_-funroll-loops_-m64_-march=barcelona_-Os_-fomit-frame-pointer2017022620170105
213876? ? ?? ? ?refgcc_-m64_-march=core-avx2_-O_-fomit-frame-pointer2017022620170105
213889? ? ?? ? ?refgcc_-funroll-loops_-Os_-fomit-frame-pointer2017022620170105
214097? ? ?? ? ?refgcc_-funroll-loops_-m64_-Os_-fomit-frame-pointer2017022620170105
214214? ? ?? ? ?refgcc_-m64_-march=k8_-Os_-fomit-frame-pointer2017022620170105
214279? ? ?? ? ?refgcc_-Os_-fomit-frame-pointer2017022620170105
214331? ? ?? ? ?refgcc_-m64_-Os_-fomit-frame-pointer2017022620170105
214461? ? ?? ? ?refgcc_-march=k8_-Os_-fomit-frame-pointer2017022620170105
214981? ? ?? ? ?refgcc_-funroll-loops_-fno-schedule-insns_-Os_-fomit-frame-pointer2017022620170105
215007? ? ?? ? ?refgcc_-funroll-loops_-march=barcelona_-Os_-fomit-frame-pointer2017022620170105
218842? ? ?? ? ?refgcc_-m64_-march=corei7_-Os_-fomit-frame-pointer2017022620170105
219531? ? ?? ? ?refgcc_-m64_-march=core2_-msse4_-Os_-fomit-frame-pointer2017022620170105
219622? ? ?? ? ?refgcc_-m64_-march=core2_-msse4.1_-Os_-fomit-frame-pointer2017022620170105
219908? ? ?? ? ?refgcc_-m64_-march=corei7-avx_-Os_-fomit-frame-pointer2017022620170105
219947? ? ?? ? ?refgcc_-m64_-march=core-avx-i_-Os_-fomit-frame-pointer2017022620170105
227734? ? ?? ? ?refgcc_-march=barcelona_-O_-fomit-frame-pointer2017022620170105
227825? ? ?? ? ?refgcc_-m64_-march=k8_-O_-fomit-frame-pointer2017022620170105
228098? ? ?? ? ?refgcc_-m64_-march=barcelona_-O_-fomit-frame-pointer2017022620170105
228397? ? ?? ? ?refgcc_-march=k8_-O_-fomit-frame-pointer2017022620170105
230412? ? ?? ? ?refgcc_-funroll-loops_-march=nocona_-Os_-fomit-frame-pointer2017022620170105
230477? ? ?? ? ?refgcc_-funroll-loops_-m64_-march=nocona_-Os_-fomit-frame-pointer2017022620170105
230971? ? ?? ? ?refgcc_-m64_-march=nocona_-Os_-fomit-frame-pointer2017022620170105
231140? ? ?? ? ?refgcc_-march=nocona_-Os_-fomit-frame-pointer2017022620170105
231283? ? ?? ? ?refgcc_-m64_-march=core2_-Os_-fomit-frame-pointer2017022620170105
232531? ? ?? ? ?refgcc_-march=native_-mtune=native_-Os_-fomit-frame-pointer_-fwrapv2017022620170105
234728? ? ?? ? ?refgcc_-m64_-march=native_-mtune=native_-Os_-fomit-frame-pointer2017022620170105
250029? ? ?? ? ?refgcc_-m64_-march=core-avx2_-Os_-fomit-frame-pointer2017022620170105
287768? ? ?? ? ?reficc2017022620170105
289198? ? ?? ? ?reficc_-xMIC-AVX512_-O3_-fomit-frame-pointer2017022620170105
292695? ? ?? ? ?reficc_-xMIC-AVX512_-O2_-fomit-frame-pointer2017022620170105
293462? ? ?? ? ?refclang_-O3_-fwrapv_-mavx2_-fomit-frame-pointer_-Qunused-arguments2017041020170228
293904? ? ?? ? ?refclang_-O3_-fwrapv_-march=x86-64_-mcpu=core-avx2_-mavx2_-maes_-mpclmul_-fomit-frame-pointer_-Qunused-arguments2017041020170228
492388? ? ?? ? ?refclang_-march=native_-O3_-fomit-frame-pointer_-fwrapv_-Qunused-arguments2017041020170228
538967? ? ?? ? ?refclang_-O3_-fwrapv_-march=native_-fomit-frame-pointer_-Qunused-arguments2017041020170228
1024010? ? ?? ? ?refgcc_-funroll-loops2017022620170105
1024049? ? ?? ? ?refcc2017022620170105
1041599? ? ?? ? ?refgcc2017022620170105

Compiler output

Implementation: crypto_aead/aes128otrsv2/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/aes128otrsv2/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/aes128otrsv2/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