Implementation notes: amd64, gpu, crypto_aead/aes256otrpv2

Computer: gpu
Architecture: amd64
CPU ID: GenuineIntel-000206d7-bfebfbff
SUPERCOP version: 20190816
Operation: crypto_aead
Primitive: aes256otrpv2
TimeObject sizeTest sizeImplementationCompilerBenchmark dateSUPERCOP version
23004916389 4392 36831677 5184 1296refgcc_-m64_-march=core-avx-i_-O3_-fomit-frame-pointer2019082520190816
23679317078 4392 35232325 5184 1296refgcc_-m64_-march=core2_-O3_-fomit-frame-pointer2019082520190816
23780013426 4400 35231245 5168 1520refclang_-march=native_-O3_-fomit-frame-pointer_-fwrapv_-Qunused-arguments2019082520190816
23806835244 8784 70433341 5184 1296refgcc_-m64_-march=barcelona_-O3_-fomit-frame-pointer2019082520190816
24208019271 4392 35236837 5184 1296refgcc_-funroll-loops_-m64_-O3_-fomit-frame-pointer2019082520190816
24342413980 4400 35234093 5168 1232refclang_-mcpu=cortex-a9_-mfpu=neon_-O3_-fomit-frame-pointer_-fwrapv_-Qunused-arguments2019082520190816
24389613980 4400 35234093 5168 1232refclang_-mcpu=cortex-a8_-mfpu=neon_-O3_-fomit-frame-pointer_-fwrapv_-Qunused-arguments2019082520190816
24637212882 4400 35229917 5168 1520refclang_-O3_-fwrapv_-mavx_-maes_-mpclmul_-fomit-frame-pointer_-Qunused-arguments2019082520190816
24808820565 4392 35236733 5168 1296refgcc_-funroll-loops_-m64_-march=barcelona_-O2_-fomit-frame-pointer2019082520190816
24881620045 4392 35235733 5168 1296refgcc_-funroll-loops_-march=nocona_-O2_-fomit-frame-pointer2019082520190816
24990417174 4392 35232357 5184 1296refgcc_-m64_-march=core2_-msse4.1_-O3_-fomit-frame-pointer2019082520190816
25026017174 4392 35232421 5184 1296refgcc_-m64_-march=core2_-msse4_-O3_-fomit-frame-pointer2019082520190816
25078416389 4392 36831677 5184 1296refgcc_-m64_-march=native_-mtune=native_-O3_-fomit-frame-pointer2019082520190816
25156417925 4392 35235141 5184 1296refgcc_-funroll-loops_-m64_-march=nocona_-O3_-fomit-frame-pointer2019082520190816
25330017014 4392 35232093 5184 1296refgcc_-m64_-march=corei7_-O3_-fomit-frame-pointer2019082520190816
25388017158 4392 35232397 5184 1296refgcc_-m64_-O3_-fomit-frame-pointer2019082520190816
25471619271 4392 35236837 5184 1296refgcc_-funroll-loops_-fno-schedule-insns_-O3_-fomit-frame-pointer2019082520190816
2553165092 4392 35216921 5152 1264refgcc_-march=native_-mtune=native_-Os_-fomit-frame-pointer_-fwrapv2019082520190816
25539615782 4392 35230717 5184 1296refgcc_-m64_-march=nocona_-O3_-fomit-frame-pointer2019082520190816
25589616389 4392 36831677 5184 1296refgcc_-m64_-march=corei7-avx_-O3_-fomit-frame-pointer2019082520190816
25783617158 4392 35232397 5184 1296refgcc_-fno-schedule-insns_-O3_-fomit-frame-pointer2019082520190816
25852014019 4400 35232797 5168 1232refclang_-O3_-fomit-frame-pointer_-Qunused-arguments2019082520190816
25854819271 4392 35236837 5184 1296refgcc_-funroll-loops_-O3_-fomit-frame-pointer2019082520190816
26199613980 4400 35234093 5168 1232refclang_-mcpu=native_-mfpu=neon_-O3_-fomit-frame-pointer_-fwrapv_-Qunused-arguments2019082520190816
26342817622 4392 35233341 5184 1296refgcc_-march=barcelona_-O3_-fomit-frame-pointer2019082520190816
26370020334 4392 35236413 5168 1296refgcc_-funroll-loops_-fno-schedule-insns_-O2_-fomit-frame-pointer2019082520190816
26417213426 4400 35231245 5168 1520refclang_-O3_-fwrapv_-march=native_-fomit-frame-pointer_-Qunused-arguments2019082520190816
26696017378 4392 35232869 5184 1296refgcc_-march=k8_-O3_-fomit-frame-pointer2019082520190816
26772819899 4392 35238053 5184 1296refgcc_-funroll-loops_-march=k8_-O3_-fomit-frame-pointer2019082520190816
26976419899 4392 35238053 5184 1296refgcc_-funroll-loops_-m64_-march=k8_-O3_-fomit-frame-pointer2019082520190816
27149617925 4392 35235141 5184 1296refgcc_-funroll-loops_-march=nocona_-O3_-fomit-frame-pointer2019082520190816
27221615782 4392 35230717 5184 1296refgcc_-march=nocona_-O3_-fomit-frame-pointer2019082520190816
27294020565 4392 35236733 5168 1296refgcc_-funroll-loops_-march=barcelona_-O2_-fomit-frame-pointer2019082520190816
27355220441 4392 35236429 5168 1296refgcc_-funroll-loops_-march=k8_-O2_-fomit-frame-pointer2019082520190816
27580820441 4392 35236429 5168 1296refgcc_-funroll-loops_-m64_-march=k8_-O2_-fomit-frame-pointer2019082520190816
2795088156 4392 35224325 5168 1296refgcc_-funroll-loops_-march=nocona_-O_-fomit-frame-pointer2019082520190816
28068020079 4392 35238413 5184 1296refgcc_-funroll-loops_-march=barcelona_-O3_-fomit-frame-pointer2019082520190816
28177217378 4392 35232869 5184 1296refgcc_-m64_-march=k8_-O3_-fomit-frame-pointer2019082520190816
28686814718 8784 70420477 5168 1296refgcc_-m64_-march=barcelona_-O2_-fomit-frame-pointer2019082520190816
2874728075 4392 35224325 5168 1296refgcc_-funroll-loops_-m64_-march=k8_-O_-fomit-frame-pointer2019082520190816
28747616405 4392 36831597 5184 1296refgcc_-march=native_-mtune=native_-O3_-fomit-frame-pointer_-fwrapv2019082520190816
28770020079 4392 35238413 5184 1296refgcc_-funroll-loops_-m64_-march=barcelona_-O3_-fomit-frame-pointer2019082520190816
2880727064 4392 35219861 5168 1296refgcc_-fno-schedule-insns_-O2_-fomit-frame-pointer2019082520190816
2888207048 4392 35219845 5168 1296refgcc_-m64_-march=core-avx-i_-O2_-fomit-frame-pointer2019082520190816
2888926915 4392 35219717 5168 1296refgcc_-march=k8_-O2_-fomit-frame-pointer2019082520190816
2890526625 4392 35219101 5168 1296refgcc_-m64_-march=nocona_-O2_-fomit-frame-pointer2019082520190816
2896088066 4392 35224349 5168 1296refgcc_-funroll-loops_-fno-schedule-insns_-O_-fomit-frame-pointer2019082520190816
28968420334 4392 35236413 5168 1296refgcc_-funroll-loops_-O2_-fomit-frame-pointer2019082520190816
2904607048 4392 35219845 5168 1296refgcc_-m64_-march=corei7_-O2_-fomit-frame-pointer2019082520190816
29094420334 4392 35236413 5168 1296refgcc_-funroll-loops_-m64_-O2_-fomit-frame-pointer2019082520190816
2910287096 4392 35219917 5168 1296refgcc_-m64_-march=core2_-O2_-fomit-frame-pointer2019082520190816
2915447359 4392 35220477 5168 1296refgcc_-march=barcelona_-O2_-fomit-frame-pointer2019082520190816
29360417158 4392 35232397 5184 1296refgcc_-O3_-fomit-frame-pointer2019082520190816
2938327064 4392 35219861 5168 1296refgcc_-m64_-O2_-fomit-frame-pointer2019082520190816
29438812882 4400 35229917 5168 1520refclang_-O3_-fwrapv_-mavx_-fomit-frame-pointer_-Qunused-arguments2019082520190816
2945887096 4392 35219917 5168 1296refgcc_-m64_-march=core2_-msse4.1_-O2_-fomit-frame-pointer2019082520190816
2967447096 4392 35219917 5168 1296refgcc_-m64_-march=core2_-msse4_-O2_-fomit-frame-pointer2019082520190816
3006727048 4392 35219845 5168 1296refgcc_-m64_-march=corei7-avx_-O2_-fomit-frame-pointer2019082520190816
3021608156 4392 35224325 5168 1296refgcc_-funroll-loops_-m64_-march=nocona_-O_-fomit-frame-pointer2019082520190816
3035126625 4392 35219101 5168 1296refgcc_-march=nocona_-O2_-fomit-frame-pointer2019082520190816
3041647048 4392 35219845 5168 1296refgcc_-m64_-march=native_-mtune=native_-O2_-fomit-frame-pointer2019082520190816
3048768066 4392 35224349 5168 1296refgcc_-funroll-loops_-m64_-O_-fomit-frame-pointer2019082520190816
3050708075 4392 35224325 5168 1296refgcc_-funroll-loops_-march=k8_-O_-fomit-frame-pointer2019082520190816
3083887988 4392 35224077 5168 1296refgcc_-funroll-loops_-march=barcelona_-O_-fomit-frame-pointer2019082520190816
3102565105 4392 35216961 5152 1264refgcc_-funroll-loops_-march=k8_-Os_-fomit-frame-pointer2019082520190816
3103295004 4392 35216857 5152 1264refgcc_-funroll-loops_-m64_-Os_-fomit-frame-pointer2019082520190816
3117048066 4392 35224349 5168 1296refgcc_-funroll-loops_-O_-fomit-frame-pointer2019082520190816
3117425959 4392 35218805 5168 1296refgcc_-m64_-O_-fomit-frame-pointer2019082520190816
3120485104 4392 35216937 5152 1264refgcc_-m64_-march=core2_-msse4.1_-Os_-fomit-frame-pointer2019082520190816
3122765105 4392 35216961 5152 1264refgcc_-funroll-loops_-m64_-march=k8_-Os_-fomit-frame-pointer2019082520190816
3135885104 4392 35216961 5152 1264refgcc_-funroll-loops_-march=nocona_-Os_-fomit-frame-pointer2019082520190816
3152367988 4392 35224077 5168 1296refgcc_-funroll-loops_-m64_-march=barcelona_-O_-fomit-frame-pointer2019082520190816
31580811826 8784 70418741 5168 1296refgcc_-m64_-march=barcelona_-O_-fomit-frame-pointer2019082520190816
3171806915 4392 35219717 5168 1296refgcc_-m64_-march=k8_-O2_-fomit-frame-pointer2019082520190816
3174685913 4392 35218741 5168 1296refgcc_-march=barcelona_-O_-fomit-frame-pointer2019082520190816
3179205959 4392 35218805 5168 1296refgcc_-fno-schedule-insns_-O_-fomit-frame-pointer2019082520190816
3242527064 4392 35219861 5168 1296refgcc_-march=native_-mtune=native_-O2_-fomit-frame-pointer_-fwrapv2019082520190816
3248565951 4392 35218789 5168 1296refgcc_-m64_-march=core-avx-i_-O_-fomit-frame-pointer2019082520190816
3252645105 4392 35216961 5152 1264refgcc_-funroll-loops_-march=barcelona_-Os_-fomit-frame-pointer2019082520190816
3252876089 4392 35218909 5168 1296refgcc_-m64_-march=nocona_-O_-fomit-frame-pointer2019082520190816
32579620045 4392 35235733 5168 1296refgcc_-funroll-loops_-m64_-march=nocona_-O2_-fomit-frame-pointer2019082520190816
3267165004 4392 35216857 5152 1264refgcc_-funroll-loops_-fno-schedule-insns_-Os_-fomit-frame-pointer2019082520190816
3298125104 4392 35216937 5152 1264refgcc_-m64_-march=core2_-Os_-fomit-frame-pointer2019082520190816
3322645955 4392 35218789 5168 1296refgcc_-m64_-march=core2_-O_-fomit-frame-pointer2019082520190816
3323325104 4392 35216937 5152 1264refgcc_-march=k8_-Os_-fomit-frame-pointer2019082520190816
3357165951 4392 35218789 5168 1296refgcc_-m64_-march=corei7_-O_-fomit-frame-pointer2019082520190816
3365845951 4392 35218789 5168 1296refgcc_-m64_-march=corei7-avx_-O_-fomit-frame-pointer2019082520190816
3366525028 4392 35216849 5152 1264refgcc_-m64_-march=corei7-avx_-Os_-fomit-frame-pointer2019082520190816
3379525028 4392 35216849 5152 1264refgcc_-m64_-march=core-avx-i_-Os_-fomit-frame-pointer2019082520190816
3382325028 4392 35216849 5152 1264refgcc_-m64_-march=native_-mtune=native_-Os_-fomit-frame-pointer2019082520190816
3382564998 4392 35216817 5152 1264refgcc_-Os_-fomit-frame-pointer2019082520190816
3390285990 4392 35218845 5168 1296refgcc_-march=k8_-O_-fomit-frame-pointer2019082520190816
3390725004 4392 35216817 5152 1264refgcc_-m64_-march=corei7_-Os_-fomit-frame-pointer2019082520190816
3413725951 4392 35218789 5168 1296refgcc_-march=native_-mtune=native_-O_-fomit-frame-pointer_-fwrapv2019082520190816
3424965955 4392 35218789 5168 1296refgcc_-m64_-march=core2_-msse4_-O_-fomit-frame-pointer2019082520190816
3440725955 4392 35218789 5168 1296refgcc_-m64_-march=core2_-msse4.1_-O_-fomit-frame-pointer2019082520190816
3443047064 4392 35219861 5168 1296refgcc_-O2_-fomit-frame-pointer2019082520190816
34602410208 8784 70416937 5152 1264refgcc_-m64_-march=barcelona_-Os_-fomit-frame-pointer2019082520190816
3485684998 4392 35216817 5152 1264refgcc_-fno-schedule-insns_-Os_-fomit-frame-pointer2019082520190816
3506925105 4392 35216961 5152 1264refgcc_-funroll-loops_-m64_-march=barcelona_-Os_-fomit-frame-pointer2019082520190816
3514925104 4392 35216937 5152 1264refgcc_-m64_-march=core2_-msse4_-Os_-fomit-frame-pointer2019082520190816
3521205103 4392 35216921 5152 1264refgcc_-m64_-march=nocona_-Os_-fomit-frame-pointer2019082520190816
3534045104 4392 35216937 5152 1264refgcc_-march=barcelona_-Os_-fomit-frame-pointer2019082520190816
3567365103 4392 35216921 5152 1264refgcc_-march=nocona_-Os_-fomit-frame-pointer2019082520190816
3571685104 4392 35216961 5152 1264refgcc_-funroll-loops_-m64_-march=nocona_-Os_-fomit-frame-pointer2019082520190816
3593205990 4392 35218845 5168 1296refgcc_-m64_-march=k8_-O_-fomit-frame-pointer2019082520190816
3622246089 4392 35218909 5168 1296refgcc_-march=nocona_-O_-fomit-frame-pointer2019082520190816
3678485004 4392 35216857 5152 1264refgcc_-funroll-loops_-Os_-fomit-frame-pointer2019082520190816
3680205959 4392 35218805 5168 1296refgcc_-O_-fomit-frame-pointer2019082520190816
3765044998 4392 35216817 5152 1264refgcc_-m64_-Os_-fomit-frame-pointer2019082520190816
3779765951 4392 35218789 5168 1296refgcc_-m64_-march=native_-mtune=native_-O_-fomit-frame-pointer2019082520190816
3784485104 4392 35216937 5152 1264refgcc_-m64_-march=k8_-Os_-fomit-frame-pointer2019082520190816
9533888204 4416 35222799 5192 1264refgcc_-funroll-loops2019082520190816
9568368204 4416 35222799 5192 1264refgcc2019082520190816
10062528204 4416 35222799 5192 1264refcc2019082520190816

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
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
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: ref
Security model: unknown
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