Implementation notes: amd64, hydra6, crypto_dh/nist521gs

Computer: hydra6
Architecture: amd64
CPU ID: AuthenticAMD-00600f12-178bfbff
SUPERCOP version: 20171218
Operation: crypto_dh
Primitive: nist521gs
TimeObject sizeTest sizeImplementationCompilerBenchmark dateSUPERCOP version
9230930? ? ?? ? ?refclang_-march=native_-O3_-fomit-frame-pointer_-fwrapv_-Qunused-arguments2017111320171020
9237652? ? ?? ? ?refclang_-O3_-fwrapv_-march=native_-fomit-frame-pointer_-Qunused-arguments2017111320171020
9404993? ? ?? ? ?refclang_-mcpu=cortex-a9_-mfpu=neon_-O3_-fomit-frame-pointer_-fwrapv_-Qunused-arguments2017111320171020
9428257? ? ?? ? ?refclang_-mcpu=native_-mfpu=neon_-O3_-fomit-frame-pointer_-fwrapv_-Qunused-arguments2017111320171020
9455534? ? ?? ? ?refclang_-mcpu=cortex-a8_-mfpu=neon_-O3_-fomit-frame-pointer_-fwrapv_-Qunused-arguments2017111320171020
9499304? ? ?? ? ?refgcc_-m64_-march=k8_-Os_-fomit-frame-pointer2017111320171020
9505952? ? ?? ? ?refgcc_-m64_-Os_-fomit-frame-pointer2017111320171020
9508020? ? ?? ? ?refgcc_-fno-schedule-insns_-Os_-fomit-frame-pointer2017111320171020
9516336? ? ?? ? ?refgcc_-funroll-loops_-m64_-Os_-fomit-frame-pointer2017111320171020
9518716? ? ?? ? ?refgcc_-funroll-loops_-march=k8_-Os_-fomit-frame-pointer2017111320171020
9523342? ? ?? ? ?refgcc_-march=barcelona_-Os_-fomit-frame-pointer2017111320171020
9523841? ? ?? ? ?refgcc_-funroll-loops_-Os_-fomit-frame-pointer2017111320171020
9537712? ? ?? ? ?refgcc_-funroll-loops_-march=barcelona_-Os_-fomit-frame-pointer2017111320171020
9538371? ? ?? ? ?refgcc_-funroll-loops_-fno-schedule-insns_-Os_-fomit-frame-pointer2017111320171020
9539410? ? ?? ? ?refgcc_-m64_-march=core-avx-i_-Os_-fomit-frame-pointer2017111320171020
9539834? ? ?? ? ?refgcc_-funroll-loops_-m64_-march=barcelona_-Os_-fomit-frame-pointer2017111320171020
9541456? ? ?? ? ?refgcc_-Os_-fomit-frame-pointer2017111320171020
9542555? ? ?? ? ?refgcc_-m64_-march=barcelona_-Os_-fomit-frame-pointer2017111320171020
9542644? ? ?? ? ?refclang_-O3_-fomit-frame-pointer_-Qunused-arguments2017111320171020
9550807? ? ?? ? ?refgcc_-march=k8_-Os_-fomit-frame-pointer2017111320171020
9554476? ? ?? ? ?refgcc_-m64_-march=corei7-avx_-Os_-fomit-frame-pointer2017111320171020
9561725? ? ?? ? ?refgcc_-funroll-loops_-m64_-march=k8_-Os_-fomit-frame-pointer2017111320171020
9575294? ? ?? ? ?refgcc_-m64_-march=core2_-msse4.1_-Os_-fomit-frame-pointer2017111320171020
9577468? ? ?? ? ?refgcc_-m64_-march=core2_-msse4_-Os_-fomit-frame-pointer2017111320171020
9582906? ? ?? ? ?refgcc_-m64_-march=core2_-Os_-fomit-frame-pointer2017111320171020
9585112? ? ?? ? ?refgcc_-m64_-march=corei7_-Os_-fomit-frame-pointer2017111320171020
9608349? ? ?? ? ?refgcc_-m64_-march=native_-mtune=native_-Os_-fomit-frame-pointer2017111320171020
9686967? ? ?? ? ?refgcc_-m64_-march=nocona_-Os_-fomit-frame-pointer2017111320171020
9695376? ? ?? ? ?refgcc_-march=nocona_-Os_-fomit-frame-pointer2017111320171020
9710133? ? ?? ? ?refgcc_-funroll-loops_-m64_-march=nocona_-Os_-fomit-frame-pointer2017111320171020
9752116? ? ?? ? ?refgcc_-funroll-loops_-march=nocona_-Os_-fomit-frame-pointer2017111320171020
9760665? ? ?? ? ?refclang_-O3_-fwrapv_-mavx_-maes_-mpclmul_-fomit-frame-pointer_-Qunused-arguments2017111320171020
9798675? ? ?? ? ?refclang_-O3_-fwrapv_-mavx_-fomit-frame-pointer_-Qunused-arguments2017111320171020
10062582? ? ?? ? ?refgcc_-m64_-march=corei7_-O3_-fomit-frame-pointer2017111320171020
10067182? ? ?? ? ?refgcc_-m64_-march=core-avx-i_-O3_-fomit-frame-pointer2017111320171020
10068118? ? ?? ? ?refgcc_-m64_-march=core2_-O3_-fomit-frame-pointer2017111320171020
10073186? ? ?? ? ?refgcc_-m64_-march=core2_-msse4_-O3_-fomit-frame-pointer2017111320171020
10077320? ? ?? ? ?refgcc_-m64_-march=corei7-avx_-O3_-fomit-frame-pointer2017111320171020
10078000? ? ?? ? ?refgcc_-m64_-march=core2_-msse4.1_-O3_-fomit-frame-pointer2017111320171020
10113952? ? ?? ? ?refgcc_-march=native_-mtune=native_-O3_-fomit-frame-pointer_-fwrapv2017111320171020
10128273? ? ?? ? ?refgcc_-funroll-loops_-m64_-O3_-fomit-frame-pointer2017111320171020
10130720? ? ?? ? ?refgcc_-funroll-loops_-fno-schedule-insns_-O3_-fomit-frame-pointer2017111320171020
10131910? ? ?? ? ?refgcc_-funroll-loops_-O3_-fomit-frame-pointer2017111320171020
10140556? ? ?? ? ?refgcc_-O3_-fomit-frame-pointer2017111320171020
10147053? ? ?? ? ?refgcc_-fno-schedule-insns_-O3_-fomit-frame-pointer2017111320171020
10150911? ? ?? ? ?refgcc_-m64_-O3_-fomit-frame-pointer2017111320171020
10173626? ? ?? ? ?refgcc_-march=native_-mtune=native_-Os_-fomit-frame-pointer_-fwrapv2017111320171020
10207122? ? ?? ? ?refgcc_-m64_-march=native_-mtune=native_-O3_-fomit-frame-pointer2017111320171020
10208594? ? ?? ? ?refgcc_-m64_-march=k8_-O3_-fomit-frame-pointer2017111320171020
10223357? ? ?? ? ?refgcc_-march=k8_-O3_-fomit-frame-pointer2017111320171020
10226465? ? ?? ? ?refgcc_-funroll-loops_-m64_-march=barcelona_-O3_-fomit-frame-pointer2017111320171020
10251401? ? ?? ? ?refgcc_-funroll-loops_-march=barcelona_-O3_-fomit-frame-pointer2017111320171020
10254744? ? ?? ? ?refgcc_-m64_-march=nocona_-O3_-fomit-frame-pointer2017111320171020
10256846? ? ?? ? ?refgcc_-funroll-loops_-m64_-march=nocona_-O3_-fomit-frame-pointer2017111320171020
10264174? ? ?? ? ?refgcc_-funroll-loops_-m64_-march=k8_-O3_-fomit-frame-pointer2017111320171020
10266370? ? ?? ? ?refgcc_-march=nocona_-O3_-fomit-frame-pointer2017111320171020
10268816? ? ?? ? ?refgcc_-m64_-march=corei7_-O2_-fomit-frame-pointer2017111320171020
10271652? ? ?? ? ?refgcc_-m64_-march=core2_-msse4.1_-O2_-fomit-frame-pointer2017111320171020
10272062? ? ?? ? ?refgcc_-funroll-loops_-march=nocona_-O3_-fomit-frame-pointer2017111320171020
10274441? ? ?? ? ?refgcc_-m64_-march=corei7-avx_-O2_-fomit-frame-pointer2017111320171020
10274703? ? ?? ? ?refgcc_-m64_-march=core2_-msse4_-O2_-fomit-frame-pointer2017111320171020
10280448? ? ?? ? ?refgcc_-march=barcelona_-O3_-fomit-frame-pointer2017111320171020
10284892? ? ?? ? ?refgcc_-m64_-march=core2_-O2_-fomit-frame-pointer2017111320171020
10287709? ? ?? ? ?refgcc_-m64_-march=core-avx-i_-O2_-fomit-frame-pointer2017111320171020
10308088? ? ?? ? ?refgcc_-funroll-loops_-march=k8_-O3_-fomit-frame-pointer2017111320171020
10356154? ? ?? ? ?refgcc_-funroll-loops_-m64_-O2_-fomit-frame-pointer2017111320171020
10367478? ? ?? ? ?refgcc_-m64_-march=barcelona_-O3_-fomit-frame-pointer2017111320171020
10368634? ? ?? ? ?refgcc_-march=native_-mtune=native_-O2_-fomit-frame-pointer_-fwrapv2017111320171020
10387310? ? ?? ? ?refgcc_-O2_-fomit-frame-pointer2017111320171020
10389702? ? ?? ? ?refgcc_-funroll-loops_-fno-schedule-insns_-O2_-fomit-frame-pointer2017111320171020
10390142? ? ?? ? ?refgcc_-m64_-O2_-fomit-frame-pointer2017111320171020
10391194? ? ?? ? ?refgcc_-fno-schedule-insns_-O2_-fomit-frame-pointer2017111320171020
10414578? ? ?? ? ?refgcc_-funroll-loops_-m64_-march=k8_-O2_-fomit-frame-pointer2017111320171020
10415597? ? ?? ? ?refgcc_-funroll-loops_-march=k8_-O2_-fomit-frame-pointer2017111320171020
10430126? ? ?? ? ?refgcc_-m64_-march=nocona_-O2_-fomit-frame-pointer2017111320171020
10442982? ? ?? ? ?refgcc_-m64_-march=k8_-O2_-fomit-frame-pointer2017111320171020
10456234? ? ?? ? ?refgcc_-march=nocona_-O2_-fomit-frame-pointer2017111320171020
10459376? ? ?? ? ?refgcc_-m64_-march=barcelona_-O2_-fomit-frame-pointer2017111320171020
10463101? ? ?? ? ?refgcc_-funroll-loops_-march=nocona_-O2_-fomit-frame-pointer2017111320171020
10466584? ? ?? ? ?refgcc_-funroll-loops_-O2_-fomit-frame-pointer2017111320171020
10468624? ? ?? ? ?refgcc_-funroll-loops_-m64_-march=nocona_-O2_-fomit-frame-pointer2017111320171020
10484892? ? ?? ? ?refgcc_-march=k8_-O2_-fomit-frame-pointer2017111320171020
10492798? ? ?? ? ?refgcc_-funroll-loops_-m64_-march=barcelona_-O2_-fomit-frame-pointer2017111320171020
10493807? ? ?? ? ?refgcc_-funroll-loops_-march=barcelona_-O2_-fomit-frame-pointer2017111320171020
10494336? ? ?? ? ?refgcc_-m64_-march=native_-mtune=native_-O2_-fomit-frame-pointer2017111320171020
10505684? ? ?? ? ?refgcc_-march=barcelona_-O2_-fomit-frame-pointer2017111320171020
19292093? ? ?? ? ?refgcc_-march=barcelona_-O_-fomit-frame-pointer2017111320171020
19299372? ? ?? ? ?refgcc_-funroll-loops_-march=barcelona_-O_-fomit-frame-pointer2017111320171020
19324193? ? ?? ? ?refgcc_-funroll-loops_-m64_-march=barcelona_-O_-fomit-frame-pointer2017111320171020
19384025? ? ?? ? ?refgcc_-march=k8_-O_-fomit-frame-pointer2017111320171020
19396995? ? ?? ? ?refgcc_-m64_-march=k8_-O_-fomit-frame-pointer2017111320171020
19409841? ? ?? ? ?refgcc_-m64_-march=barcelona_-O_-fomit-frame-pointer2017111320171020
19479978? ? ?? ? ?refgcc_-funroll-loops_-march=k8_-O_-fomit-frame-pointer2017111320171020
19495059? ? ?? ? ?refgcc_-funroll-loops_-m64_-march=k8_-O_-fomit-frame-pointer2017111320171020
19501593? ? ?? ? ?refgcc_-funroll-loops_-m64_-O_-fomit-frame-pointer2017111320171020
19505241? ? ?? ? ?refgcc_-funroll-loops_-O_-fomit-frame-pointer2017111320171020
19505934? ? ?? ? ?refgcc_-funroll-loops_-fno-schedule-insns_-O_-fomit-frame-pointer2017111320171020
19522371? ? ?? ? ?refgcc_-O_-fomit-frame-pointer2017111320171020
19537975? ? ?? ? ?refgcc_-m64_-march=core2_-msse4_-O_-fomit-frame-pointer2017111320171020
19554747? ? ?? ? ?refgcc_-fno-schedule-insns_-O_-fomit-frame-pointer2017111320171020
19555029? ? ?? ? ?refgcc_-m64_-march=core2_-O_-fomit-frame-pointer2017111320171020
19561241? ? ?? ? ?refgcc_-m64_-march=corei7-avx_-O_-fomit-frame-pointer2017111320171020
19577950? ? ?? ? ?refgcc_-march=nocona_-O_-fomit-frame-pointer2017111320171020
19583298? ? ?? ? ?refgcc_-m64_-march=core-avx-i_-O_-fomit-frame-pointer2017111320171020
19584354? ? ?? ? ?refgcc_-m64_-march=core2_-msse4.1_-O_-fomit-frame-pointer2017111320171020
19594311? ? ?? ? ?refgcc_-m64_-march=corei7_-O_-fomit-frame-pointer2017111320171020
19639103? ? ?? ? ?refgcc_-m64_-O_-fomit-frame-pointer2017111320171020
19691063? ? ?? ? ?refgcc_-funroll-loops_-m64_-march=nocona_-O_-fomit-frame-pointer2017111320171020
19700821? ? ?? ? ?refgcc_-funroll-loops_-march=nocona_-O_-fomit-frame-pointer2017111320171020
19703118? ? ?? ? ?refgcc_-m64_-march=nocona_-O_-fomit-frame-pointer2017111320171020
19716527? ? ?? ? ?refgcc_-m64_-march=native_-mtune=native_-O_-fomit-frame-pointer2017111320171020
20149420? ? ?? ? ?refgcc_-march=native_-mtune=native_-O_-fomit-frame-pointer_-fwrapv2017111320171020
33783004? ? ?? ? ?refgcc2017111320171020
33795799? ? ?? ? ?refgcc_-funroll-loops2017111320171020
33873809? ? ?? ? ?refcc2017111320171020

Test failure

Implementation: crypto_dh/nist521gs/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_dh/nist521gs/ref
Compiler: cc
dh.c: dh.c: In function 'crypto_dh_nist521gs_ref_keypair':
dh.c: dh.c:831:2: warning: implicit declaration of function 'randombytes' [-Wimplicit-function-declaration]
dh.c: randombytes(sk,PANES-1);
dh.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_dh/nist521gs/ref
Compiler: clang -O3 -fomit-frame-pointer -Qunused-arguments
dh.c: dh.c:831:2: warning: implicit declaration of function 'randombytes' is invalid in C99 [-Wimplicit-function-declaration]
dh.c: randombytes(sk,PANES-1);
dh.c: ^
dh.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_dh/nist521gs/ref
Compiler: gcc -m64 -march=barcelona -O2 -fomit-frame-pointer
dh.c: dh.c: In function 'crypto_dh_nist521gs_ref_keypair':
dh.c: dh.c:831:2: warning: implicit declaration of function 'randombytes' [-Wimplicit-function-declaration]
dh.c: randombytes(sk,PANES-1);
dh.c: ^
dh.c: dh.c: In function 'crypto_dh_nist521gs_ref_keypair':
dh.c: dh.c:831:2: warning: implicit declaration of function 'randombytes' [-Wimplicit-function-declaration]
dh.c: randombytes(sk,PANES-1);
dh.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