Implementation notes: amd64, hobbes, crypto_aead/aes128n8silcv1

Computer: hobbes
Architecture: amd64
CPU ID: AuthenticAMD-00600f20-178bfbff
SUPERCOP version: 20171218
Operation: crypto_aead
Primitive: aes128n8silcv1
TimeObject sizeTest sizeImplementationCompilerBenchmark dateSUPERCOP version
182580? ? ?? ? ?refgcc_-funroll-loops_-O2_-fomit-frame-pointer2017080820170725
182590? ? ?? ? ?refgcc_-funroll-loops_-m64_-O2_-fomit-frame-pointer2017080820170725
182681? ? ?? ? ?refgcc_-funroll-loops_-fno-schedule-insns_-O2_-fomit-frame-pointer2017080820170725
183156? ? ?? ? ?refgcc_-funroll-loops_-march=k8_-O2_-fomit-frame-pointer2017080820170725
183283? ? ?? ? ?refgcc_-funroll-loops_-m64_-march=k8_-O2_-fomit-frame-pointer2017080820170725
183428? ? ?? ? ?refgcc_-funroll-loops_-march=barcelona_-O2_-fomit-frame-pointer2017080820170725
183473? ? ?? ? ?refgcc_-funroll-loops_-m64_-march=barcelona_-O2_-fomit-frame-pointer2017080820170725
183505? ? ?? ? ?refgcc_-funroll-loops_-m64_-O3_-fomit-frame-pointer2017080820170725
183781? ? ?? ? ?refgcc_-funroll-loops_-fno-schedule-insns_-O3_-fomit-frame-pointer2017080820170725
184027? ? ?? ? ?refgcc_-funroll-loops_-O3_-fomit-frame-pointer2017080820170725
184203? ? ?? ? ?refgcc_-funroll-loops_-march=k8_-O3_-fomit-frame-pointer2017080820170725
184439? ? ?? ? ?refgcc_-funroll-loops_-m64_-march=k8_-O3_-fomit-frame-pointer2017080820170725
185182? ? ?? ? ?refgcc_-funroll-loops_-march=barcelona_-O3_-fomit-frame-pointer2017080820170725
185503? ? ?? ? ?refgcc_-funroll-loops_-m64_-march=barcelona_-O3_-fomit-frame-pointer2017080820170725
186926? ? ?? ? ?refclang_-mcpu=native_-mfpu=neon_-O3_-fomit-frame-pointer_-fwrapv_-Qunused-arguments2017080820170725
187194? ? ?? ? ?refclang_-mcpu=cortex-a9_-mfpu=neon_-O3_-fomit-frame-pointer_-fwrapv_-Qunused-arguments2017080820170725
187360? ? ?? ? ?refclang_-O3_-fomit-frame-pointer_-Qunused-arguments2017080820170725
187427? ? ?? ? ?refclang_-mcpu=cortex-a8_-mfpu=neon_-O3_-fomit-frame-pointer_-fwrapv_-Qunused-arguments2017080820170725
190125? ? ?? ? ?refgcc_-funroll-loops_-m64_-march=nocona_-O2_-fomit-frame-pointer2017080820170725
190267? ? ?? ? ?refgcc_-funroll-loops_-march=nocona_-O2_-fomit-frame-pointer2017080820170725
190793? ? ?? ? ?refgcc_-march=native_-mtune=native_-O2_-fomit-frame-pointer_-fwrapv2017080820170725
190953? ? ?? ? ?refgcc_-m64_-march=native_-mtune=native_-O2_-fomit-frame-pointer2017080820170725
191218? ? ?? ? ?refgcc_-m64_-O2_-fomit-frame-pointer2017080820170725
191284? ? ?? ? ?refgcc_-fno-schedule-insns_-O2_-fomit-frame-pointer2017080820170725
191302? ? ?? ? ?refgcc_-funroll-loops_-m64_-march=nocona_-O3_-fomit-frame-pointer2017080820170725
191310? ? ?? ? ?refgcc_-O2_-fomit-frame-pointer2017080820170725
192040? ? ?? ? ?refgcc_-m64_-march=corei7-avx_-O2_-fomit-frame-pointer2017080820170725
192122? ? ?? ? ?refgcc_-m64_-march=core-avx-i_-O2_-fomit-frame-pointer2017080820170725
192136? ? ?? ? ?refgcc_-m64_-march=core2_-msse4_-O2_-fomit-frame-pointer2017080820170725
192239? ? ?? ? ?refgcc_-m64_-march=core2_-msse4.1_-O2_-fomit-frame-pointer2017080820170725
192340? ? ?? ? ?refgcc_-funroll-loops_-march=nocona_-O3_-fomit-frame-pointer2017080820170725
192495? ? ?? ? ?refgcc_-m64_-march=corei7_-O2_-fomit-frame-pointer2017080820170725
192801? ? ?? ? ?refgcc_-m64_-O3_-fomit-frame-pointer2017080820170725
192896? ? ?? ? ?refgcc_-march=barcelona_-O2_-fomit-frame-pointer2017080820170725
193036? ? ?? ? ?refgcc_-m64_-march=barcelona_-O2_-fomit-frame-pointer2017080820170725
193211? ? ?? ? ?refgcc_-m64_-march=core2_-msse4.1_-O3_-fomit-frame-pointer2017080820170725
193320? ? ?? ? ?refgcc_-O3_-fomit-frame-pointer2017080820170725
193370? ? ?? ? ?refgcc_-fno-schedule-insns_-O3_-fomit-frame-pointer2017080820170725
193886? ? ?? ? ?refgcc_-march=barcelona_-O3_-fomit-frame-pointer2017080820170725
193924? ? ?? ? ?refgcc_-m64_-march=corei7-avx_-O3_-fomit-frame-pointer2017080820170725
193939? ? ?? ? ?refgcc_-m64_-march=corei7_-O3_-fomit-frame-pointer2017080820170725
193989? ? ?? ? ?refgcc_-m64_-march=barcelona_-O3_-fomit-frame-pointer2017080820170725
194267? ? ?? ? ?refgcc_-m64_-march=core2_-O3_-fomit-frame-pointer2017080820170725
194745? ? ?? ? ?refgcc_-m64_-march=core2_-msse4_-O3_-fomit-frame-pointer2017080820170725
194771? ? ?? ? ?refgcc_-m64_-march=k8_-O3_-fomit-frame-pointer2017080820170725
194819? ? ?? ? ?refgcc_-march=k8_-O3_-fomit-frame-pointer2017080820170725
194965? ? ?? ? ?refgcc_-m64_-march=core-avx-i_-O3_-fomit-frame-pointer2017080820170725
197948? ? ?? ? ?refgcc_-m64_-march=nocona_-O2_-fomit-frame-pointer2017080820170725
198055? ? ?? ? ?refgcc_-march=nocona_-O2_-fomit-frame-pointer2017080820170725
198953? ? ?? ? ?refgcc_-m64_-march=native_-mtune=native_-O3_-fomit-frame-pointer2017080820170725
199503? ? ?? ? ?refgcc_-march=native_-mtune=native_-O3_-fomit-frame-pointer_-fwrapv2017080820170725
199830? ? ?? ? ?refclang_-O3_-fwrapv_-mavx_-maes_-mpclmul_-fomit-frame-pointer_-Qunused-arguments2017080820170725
200127? ? ?? ? ?refclang_-O3_-fwrapv_-mavx_-fomit-frame-pointer_-Qunused-arguments2017080820170725
200353? ? ?? ? ?refgcc_-m64_-march=k8_-O2_-fomit-frame-pointer2017080820170725
200408? ? ?? ? ?refgcc_-march=k8_-O2_-fomit-frame-pointer2017080820170725
200829? ? ?? ? ?refgcc_-march=nocona_-O3_-fomit-frame-pointer2017080820170725
201262? ? ?? ? ?refgcc_-m64_-march=nocona_-O3_-fomit-frame-pointer2017080820170725
201690? ? ?? ? ?refgcc_-m64_-march=core2_-O2_-fomit-frame-pointer2017080820170725
203323? ? ?? ? ?refgcc_-funroll-loops_-march=k8_-O_-fomit-frame-pointer2017080820170725
203390? ? ?? ? ?refgcc_-funroll-loops_-m64_-march=k8_-O_-fomit-frame-pointer2017080820170725
203825? ? ?? ? ?refgcc_-funroll-loops_-m64_-march=nocona_-O_-fomit-frame-pointer2017080820170725
204083? ? ?? ? ?refgcc_-funroll-loops_-O_-fomit-frame-pointer2017080820170725
204466? ? ?? ? ?refgcc_-funroll-loops_-fno-schedule-insns_-O_-fomit-frame-pointer2017080820170725
204762? ? ?? ? ?refgcc_-funroll-loops_-march=nocona_-O_-fomit-frame-pointer2017080820170725
204881? ? ?? ? ?refgcc_-funroll-loops_-march=barcelona_-O_-fomit-frame-pointer2017080820170725
204928? ? ?? ? ?refgcc_-funroll-loops_-m64_-march=barcelona_-O_-fomit-frame-pointer2017080820170725
204951? ? ?? ? ?refgcc_-funroll-loops_-m64_-O_-fomit-frame-pointer2017080820170725
205916? ? ?? ? ?refclang_-O3_-fwrapv_-march=native_-fomit-frame-pointer_-Qunused-arguments2017080820170725
205963? ? ?? ? ?refclang_-march=native_-O3_-fomit-frame-pointer_-fwrapv_-Qunused-arguments2017080820170725
209316? ? ?? ? ?refgcc_-m64_-march=native_-mtune=native_-O_-fomit-frame-pointer2017080820170725
209635? ? ?? ? ?refgcc_-march=native_-mtune=native_-O_-fomit-frame-pointer_-fwrapv2017080820170725
210127? ? ?? ? ?refgcc_-march=native_-mtune=native_-Os_-fomit-frame-pointer_-fwrapv2017080820170725
210800? ? ?? ? ?refgcc_-m64_-march=native_-mtune=native_-Os_-fomit-frame-pointer2017080820170725
212197? ? ?? ? ?refgcc_-m64_-march=corei7-avx_-Os_-fomit-frame-pointer2017080820170725
212205? ? ?? ? ?refgcc_-m64_-march=core-avx-i_-Os_-fomit-frame-pointer2017080820170725
215185? ? ?? ? ?refgcc_-m64_-march=nocona_-O_-fomit-frame-pointer2017080820170725
215538? ? ?? ? ?refgcc_-m64_-march=corei7-avx_-O_-fomit-frame-pointer2017080820170725
215702? ? ?? ? ?refgcc_-m64_-march=corei7_-O_-fomit-frame-pointer2017080820170725
215761? ? ?? ? ?refgcc_-march=nocona_-O_-fomit-frame-pointer2017080820170725
216335? ? ?? ? ?refgcc_-m64_-march=core2_-O_-fomit-frame-pointer2017080820170725
216338? ? ?? ? ?refgcc_-m64_-march=core2_-msse4.1_-O_-fomit-frame-pointer2017080820170725
216646? ? ?? ? ?refgcc_-m64_-march=core-avx-i_-O_-fomit-frame-pointer2017080820170725
217223? ? ?? ? ?refgcc_-funroll-loops_-march=barcelona_-Os_-fomit-frame-pointer2017080820170725
217329? ? ?? ? ?refgcc_-funroll-loops_-m64_-march=barcelona_-Os_-fomit-frame-pointer2017080820170725
217444? ? ?? ? ?refgcc_-funroll-loops_-march=k8_-Os_-fomit-frame-pointer2017080820170725
217515? ? ?? ? ?refgcc_-funroll-loops_-m64_-march=k8_-Os_-fomit-frame-pointer2017080820170725
217524? ? ?? ? ?refgcc_-funroll-loops_-fno-schedule-insns_-Os_-fomit-frame-pointer2017080820170725
217645? ? ?? ? ?refgcc_-funroll-loops_-Os_-fomit-frame-pointer2017080820170725
217792? ? ?? ? ?refgcc_-funroll-loops_-m64_-Os_-fomit-frame-pointer2017080820170725
218714? ? ?? ? ?refgcc_-m64_-march=nocona_-Os_-fomit-frame-pointer2017080820170725
219283? ? ?? ? ?refgcc_-fno-schedule-insns_-O_-fomit-frame-pointer2017080820170725
219360? ? ?? ? ?refgcc_-O_-fomit-frame-pointer2017080820170725
219544? ? ?? ? ?refgcc_-march=nocona_-Os_-fomit-frame-pointer2017080820170725
220026? ? ?? ? ?refgcc_-m64_-march=core2_-msse4_-O_-fomit-frame-pointer2017080820170725
220053? ? ?? ? ?refgcc_-m64_-O_-fomit-frame-pointer2017080820170725
220532? ? ?? ? ?refgcc_-march=barcelona_-Os_-fomit-frame-pointer2017080820170725
220596? ? ?? ? ?refgcc_-m64_-march=corei7_-Os_-fomit-frame-pointer2017080820170725
220630? ? ?? ? ?refgcc_-m64_-march=barcelona_-Os_-fomit-frame-pointer2017080820170725
220688? ? ?? ? ?refgcc_-fno-schedule-insns_-Os_-fomit-frame-pointer2017080820170725
220720? ? ?? ? ?refgcc_-m64_-Os_-fomit-frame-pointer2017080820170725
220819? ? ?? ? ?refgcc_-Os_-fomit-frame-pointer2017080820170725
221165? ? ?? ? ?refgcc_-m64_-march=core2_-msse4.1_-Os_-fomit-frame-pointer2017080820170725
221271? ? ?? ? ?refgcc_-m64_-march=core2_-msse4_-Os_-fomit-frame-pointer2017080820170725
221286? ? ?? ? ?refgcc_-m64_-march=k8_-O_-fomit-frame-pointer2017080820170725
221309? ? ?? ? ?refgcc_-march=k8_-O_-fomit-frame-pointer2017080820170725
221368? ? ?? ? ?refgcc_-m64_-march=core2_-Os_-fomit-frame-pointer2017080820170725
222392? ? ?? ? ?refgcc_-m64_-march=k8_-Os_-fomit-frame-pointer2017080820170725
223096? ? ?? ? ?refgcc_-march=barcelona_-O_-fomit-frame-pointer2017080820170725
223423? ? ?? ? ?refgcc_-m64_-march=barcelona_-O_-fomit-frame-pointer2017080820170725
224470? ? ?? ? ?refgcc_-funroll-loops_-m64_-march=nocona_-Os_-fomit-frame-pointer2017080820170725
224483? ? ?? ? ?refgcc_-funroll-loops_-march=nocona_-Os_-fomit-frame-pointer2017080820170725
224911? ? ?? ? ?refgcc_-march=k8_-Os_-fomit-frame-pointer2017080820170725
469562? ? ?? ? ?refgcc_-funroll-loops2017080820170725
469594? ? ?? ? ?refcc2017080820170725
545584? ? ?? ? ?refgcc2017080820170725

Test failure

Implementation: crypto_aead/aes128n8silcv1/ref
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: crypto_aead/aes128n8silcv1/ref
Compiler: cc
silc.c: silc.c: In function 'process_ad':
silc.c: silc.c:39:2: warning: implicit declaration of function 'pstate2' [-Wimplicit-function-declaration]
silc.c: pstate2("processing nonce:", NULL);
silc.c: ^

Number of similar (compiler,implementation) pairs: 106, 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=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
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/aes128n8silcv1/ref
Compiler: clang -O3 -fomit-frame-pointer -Qunused-arguments
silc.c: silc.c:39:2: warning: implicit declaration of function 'pstate2' is invalid in C99 [-Wimplicit-function-declaration]
silc.c: pstate2("processing nonce:", NULL);
silc.c: ^
silc.c: 1 warning generated.

Number of similar (compiler,implementation) pairs: 8, namely:
CompilerImplementations
clang -O3 -fomit-frame-pointer -Qunused-arguments ref
clang -O3 -fwrapv -march=native -fomit-frame-pointer -Qunused-arguments ref
clang -O3 -fwrapv -mavx -fomit-frame-pointer -Qunused-arguments ref
clang -O3 -fwrapv -mavx -maes -mpclmul -fomit-frame-pointer -Qunused-arguments ref
clang -march=native -O3 -fomit-frame-pointer -fwrapv -Qunused-arguments ref
clang -mcpu=cortex-a8 -mfpu=neon -O3 -fomit-frame-pointer -fwrapv -Qunused-arguments ref
clang -mcpu=cortex-a9 -mfpu=neon -O3 -fomit-frame-pointer -fwrapv -Qunused-arguments ref
clang -mcpu=native -mfpu=neon -O3 -fomit-frame-pointer -fwrapv -Qunused-arguments ref

Compiler output

Implementation: crypto_aead/aes128n8silcv1/ref
Compiler: gcc -m64 -march=barcelona -O2 -fomit-frame-pointer
silc.c: silc.c: In function 'process_ad':
silc.c: silc.c:39:2: warning: implicit declaration of function 'pstate2' [-Wimplicit-function-declaration]
silc.c: pstate2("processing nonce:", NULL);
silc.c: ^
silc.c: silc.c: In function 'process_ad':
silc.c: silc.c:39:2: warning: implicit declaration of function 'pstate2' [-Wimplicit-function-declaration]
silc.c: pstate2("processing nonce:", NULL);
silc.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