Implementation notes: amd64, h8bobcat, crypto_sign/edons128ref

Computer: h8bobcat
Architecture: amd64
CPU ID: AuthenticAMD-00500f20-178bfbff
SUPERCOP version: 20171218
Operation: crypto_sign
Primitive: edons128ref
TimeObject sizeTest sizeImplementationCompilerBenchmark dateSUPERCOP version
10712642? ? ?? ? ?refclang_-mcpu=native_-mfpu=neon_-O3_-fomit-frame-pointer_-fwrapv_-Qunused-arguments2017122220171218
10741545? ? ?? ? ?refclang_-mcpu=cortex-a8_-mfpu=neon_-O3_-fomit-frame-pointer_-fwrapv_-Qunused-arguments2017122220171218
10745763? ? ?? ? ?refclang_-O3_-fomit-frame-pointer_-Qunused-arguments2017122220171218
10757942? ? ?? ? ?refclang_-mcpu=cortex-a9_-mfpu=neon_-O3_-fomit-frame-pointer_-fwrapv_-Qunused-arguments2017122220171218
10760597? ? ?? ? ?refclang_-march=native_-O3_-fomit-frame-pointer_-fwrapv_-Qunused-arguments2017122220171218
10791121? ? ?? ? ?refclang_-O3_-fwrapv_-march=native_-fomit-frame-pointer_-Qunused-arguments2017122220171218
11188392? ? ?? ? ?refgcc_-funroll-loops_-march=barcelona_-O3_-fomit-frame-pointer2017122220171218
11214907? ? ?? ? ?refgcc_-funroll-loops_-m64_-march=barcelona_-O3_-fomit-frame-pointer2017122220171218
11365449? ? ?? ? ?refgcc_-funroll-loops_-march=nocona_-O3_-fomit-frame-pointer2017122220171218
11381756? ? ?? ? ?refgcc_-funroll-loops_-m64_-march=nocona_-O3_-fomit-frame-pointer2017122220171218
11419741? ? ?? ? ?refgcc_-m64_-march=nocona_-O3_-fomit-frame-pointer2017122220171218
11444156? ? ?? ? ?refgcc_-march=nocona_-O3_-fomit-frame-pointer2017122220171218
11477116? ? ?? ? ?refgcc_-m64_-march=core2_-O3_-fomit-frame-pointer2017122220171218
11498615? ? ?? ? ?refgcc_-funroll-loops_-march=barcelona_-O2_-fomit-frame-pointer2017122220171218
11505445? ? ?? ? ?refgcc_-funroll-loops_-m64_-march=barcelona_-O2_-fomit-frame-pointer2017122220171218
11530882? ? ?? ? ?refgcc_-funroll-loops_-march=barcelona_-O_-fomit-frame-pointer2017122220171218
11607793? ? ?? ? ?refgcc_-funroll-loops_-m64_-march=nocona_-O2_-fomit-frame-pointer2017122220171218
11613456? ? ?? ? ?refgcc_-funroll-loops_-march=nocona_-O2_-fomit-frame-pointer2017122220171218
11623459? ? ?? ? ?refgcc_-march=barcelona_-O3_-fomit-frame-pointer2017122220171218
11624033? ? ?? ? ?refgcc_-m64_-march=barcelona_-O3_-fomit-frame-pointer2017122220171218
11650496? ? ?? ? ?refgcc_-funroll-loops_-m64_-O3_-fomit-frame-pointer2017122220171218
11651935? ? ?? ? ?refgcc_-funroll-loops_-O3_-fomit-frame-pointer2017122220171218
11653166? ? ?? ? ?refgcc_-funroll-loops_-fno-schedule-insns_-O3_-fomit-frame-pointer2017122220171218
11660466? ? ?? ? ?refgcc_-funroll-loops_-fno-schedule-insns_-O_-fomit-frame-pointer2017122220171218
11661915? ? ?? ? ?refgcc_-funroll-loops_-m64_-O_-fomit-frame-pointer2017122220171218
11665141? ? ?? ? ?refgcc_-funroll-loops_-O_-fomit-frame-pointer2017122220171218
11665434? ? ?? ? ?refgcc_-funroll-loops_-m64_-march=nocona_-O_-fomit-frame-pointer2017122220171218
11666746? ? ?? ? ?refgcc_-funroll-loops_-march=nocona_-O_-fomit-frame-pointer2017122220171218
11684012? ? ?? ? ?refgcc_-funroll-loops_-m64_-march=barcelona_-O_-fomit-frame-pointer2017122220171218
11821643? ? ?? ? ?refgcc_-m64_-march=native_-mtune=native_-O3_-fomit-frame-pointer2017122220171218
11833134? ? ?? ? ?refgcc_-funroll-loops_-m64_-march=k8_-O_-fomit-frame-pointer2017122220171218
11839618? ? ?? ? ?refgcc_-march=native_-mtune=native_-O3_-fomit-frame-pointer_-fwrapv2017122220171218
11847170? ? ?? ? ?refgcc_-funroll-loops_-march=k8_-O_-fomit-frame-pointer2017122220171218
11851659? ? ?? ? ?refgcc_-funroll-loops_-O2_-fomit-frame-pointer2017122220171218
11856262? ? ?? ? ?refgcc_-funroll-loops_-fno-schedule-insns_-O2_-fomit-frame-pointer2017122220171218
11886923? ? ?? ? ?refgcc_-funroll-loops_-m64_-O2_-fomit-frame-pointer2017122220171218
11920248? ? ?? ? ?refgcc_-funroll-loops_-m64_-march=k8_-O3_-fomit-frame-pointer2017122220171218
11922500? ? ?? ? ?refgcc_-m64_-O3_-fomit-frame-pointer2017122220171218
11931435? ? ?? ? ?refgcc_-funroll-loops_-march=k8_-O3_-fomit-frame-pointer2017122220171218
11940365? ? ?? ? ?refgcc_-fno-schedule-insns_-O3_-fomit-frame-pointer2017122220171218
11972237? ? ?? ? ?refgcc_-O3_-fomit-frame-pointer2017122220171218
12124645? ? ?? ? ?refgcc_-funroll-loops_-m64_-march=k8_-O2_-fomit-frame-pointer2017122220171218
12125083? ? ?? ? ?refgcc_-funroll-loops_-march=k8_-O2_-fomit-frame-pointer2017122220171218
12283733? ? ?? ? ?refgcc_-m64_-O_-fomit-frame-pointer2017122220171218
12284944? ? ?? ? ?refgcc_-fno-schedule-insns_-O_-fomit-frame-pointer2017122220171218
12290910? ? ?? ? ?refgcc_-m64_-march=native_-mtune=native_-O_-fomit-frame-pointer2017122220171218
12292122? ? ?? ? ?refgcc_-O_-fomit-frame-pointer2017122220171218
12294131? ? ?? ? ?refgcc_-m64_-march=barcelona_-O_-fomit-frame-pointer2017122220171218
12307459? ? ?? ? ?refgcc_-march=barcelona_-O_-fomit-frame-pointer2017122220171218
12313658? ? ?? ? ?refgcc_-m64_-march=core2_-O2_-fomit-frame-pointer2017122220171218
12342234? ? ?? ? ?refgcc_-march=native_-mtune=native_-O_-fomit-frame-pointer_-fwrapv2017122220171218
12371897? ? ?? ? ?refgcc_-m64_-march=core2_-O_-fomit-frame-pointer2017122220171218
12407138? ? ?? ? ?refgcc_-march=k8_-O3_-fomit-frame-pointer2017122220171218
12407670? ? ?? ? ?refgcc_-m64_-march=k8_-O3_-fomit-frame-pointer2017122220171218
12552968? ? ?? ? ?refgcc_-march=barcelona_-O2_-fomit-frame-pointer2017122220171218
12577772? ? ?? ? ?refgcc_-march=nocona_-O_-fomit-frame-pointer2017122220171218
12582456? ? ?? ? ?refgcc_-m64_-march=nocona_-O_-fomit-frame-pointer2017122220171218
12586469? ? ?? ? ?refgcc_-march=k8_-O_-fomit-frame-pointer2017122220171218
12589139? ? ?? ? ?refgcc_-m64_-march=barcelona_-O2_-fomit-frame-pointer2017122220171218
12595104? ? ?? ? ?refgcc_-m64_-march=k8_-O_-fomit-frame-pointer2017122220171218
12697400? ? ?? ? ?refgcc_-march=nocona_-O2_-fomit-frame-pointer2017122220171218
12706126? ? ?? ? ?refgcc_-m64_-march=nocona_-O2_-fomit-frame-pointer2017122220171218
12773054? ? ?? ? ?refgcc_-m64_-march=native_-mtune=native_-O2_-fomit-frame-pointer2017122220171218
12938126? ? ?? ? ?refgcc_-march=native_-mtune=native_-O2_-fomit-frame-pointer_-fwrapv2017122220171218
13016377? ? ?? ? ?refgcc_-m64_-O2_-fomit-frame-pointer2017122220171218
13016748? ? ?? ? ?refgcc_-fno-schedule-insns_-O2_-fomit-frame-pointer2017122220171218
13027335? ? ?? ? ?refgcc_-O2_-fomit-frame-pointer2017122220171218
13162378? ? ?? ? ?refgcc_-m64_-march=k8_-O2_-fomit-frame-pointer2017122220171218
13196374? ? ?? ? ?refgcc_-march=k8_-O2_-fomit-frame-pointer2017122220171218
14152202? ? ?? ? ?refgcc_-march=native_-mtune=native_-Os_-fomit-frame-pointer_-fwrapv2017122220171218
14335495? ? ?? ? ?refgcc_-funroll-loops_-m64_-march=nocona_-Os_-fomit-frame-pointer2017122220171218
14343475? ? ?? ? ?refgcc_-funroll-loops_-march=nocona_-Os_-fomit-frame-pointer2017122220171218
14440205? ? ?? ? ?refgcc_-funroll-loops_-m64_-march=barcelona_-Os_-fomit-frame-pointer2017122220171218
14441126? ? ?? ? ?refgcc_-m64_-march=core2_-Os_-fomit-frame-pointer2017122220171218
14448137? ? ?? ? ?refgcc_-funroll-loops_-march=barcelona_-Os_-fomit-frame-pointer2017122220171218
14452639? ? ?? ? ?refgcc_-march=barcelona_-Os_-fomit-frame-pointer2017122220171218
14454473? ? ?? ? ?refgcc_-m64_-march=barcelona_-Os_-fomit-frame-pointer2017122220171218
14467341? ? ?? ? ?refgcc_-m64_-march=native_-mtune=native_-Os_-fomit-frame-pointer2017122220171218
14689864? ? ?? ? ?refgcc_-Os_-fomit-frame-pointer2017122220171218
14695636? ? ?? ? ?refgcc_-fno-schedule-insns_-Os_-fomit-frame-pointer2017122220171218
14697293? ? ?? ? ?refgcc_-m64_-Os_-fomit-frame-pointer2017122220171218
14759224? ? ?? ? ?refgcc_-march=nocona_-Os_-fomit-frame-pointer2017122220171218
14763437? ? ?? ? ?refgcc_-m64_-march=nocona_-Os_-fomit-frame-pointer2017122220171218
14849512? ? ?? ? ?refgcc_-m64_-march=k8_-Os_-fomit-frame-pointer2017122220171218
14849959? ? ?? ? ?refgcc_-march=k8_-Os_-fomit-frame-pointer2017122220171218
14859809? ? ?? ? ?refgcc_-funroll-loops_-fno-schedule-insns_-Os_-fomit-frame-pointer2017122220171218
14863069? ? ?? ? ?refgcc_-funroll-loops_-m64_-Os_-fomit-frame-pointer2017122220171218
14868188? ? ?? ? ?refgcc_-funroll-loops_-Os_-fomit-frame-pointer2017122220171218
14895748? ? ?? ? ?refgcc_-funroll-loops_-march=k8_-Os_-fomit-frame-pointer2017122220171218
14901258? ? ?? ? ?refgcc_-funroll-loops_-m64_-march=k8_-Os_-fomit-frame-pointer2017122220171218
45821730? ? ?? ? ?refgcc_-funroll-loops2017122220171218
45841999? ? ?? ? ?refgcc2017122220171218
45850416? ? ?? ? ?refcc2017122220171218

Test failure

Implementation: crypto_sign/edons128ref/ref
Compiler: gcc -m64 -march=core2 -msse4.1 -O2 -fomit-frame-pointer
error 111

Number of similar (compiler,implementation) pairs: 9, namely:
CompilerImplementations
gcc -m64 -march=core2 -msse4.1 -O2 -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 -O -fomit-frame-pointer ref
gcc -m64 -march=core2 -msse4 -Os -fomit-frame-pointer ref
gcc -m64 -march=corei7 -O2 -fomit-frame-pointer ref
gcc -m64 -march=corei7 -O -fomit-frame-pointer ref
gcc -m64 -march=corei7 -Os -fomit-frame-pointer ref

Compiler output

Implementation: crypto_sign/edons128ref/ref
Compiler: cc
sign.c: sign.c: In function 'crypto_sign_edons128ref_ref':
sign.c: sign.c:815:63: warning: passing argument 4 of 'qsort' from incompatible pointer type [-Wincompatible-pointer-types]
sign.c: qsort(allcandidates, NumberOfAllCandidates, sizeof(Kelt), compare);
sign.c: ^
sign.c: In file included from sign.c:2:0:
sign.c: /usr/include/stdlib.h:764:13: note: expected '__compar_fn_t {aka int (*)(const void *, const void *)}' but argument is of type 'int (*)(const long unsigned int *, const long unsigned int *)'
sign.c: extern void qsort (void *__base, size_t __nmemb, size_t __size,
sign.c: ^
sign.c: sign.c: In function 'crypto_sign_edons128ref_ref_open':
sign.c: sign.c:975:63: warning: passing argument 4 of 'qsort' from incompatible pointer type [-Wincompatible-pointer-types]
sign.c: qsort(allcandidates, NumberOfAllCandidates, sizeof(Kelt), compare);
sign.c: ^
sign.c: In file included from sign.c:2:0:
sign.c: /usr/include/stdlib.h:764:13: note: expected '__compar_fn_t {aka int (*)(const void *, const void *)}' but argument is of type 'int (*)(const long unsigned int *, const long unsigned int *)'
sign.c: extern void qsort (void *__base, size_t __nmemb, size_t __size,
sign.c: ^

Number of similar (compiler,implementation) pairs: 92, 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=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 -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 -O -fomit-frame-pointer ref
gcc -m64 -march=core2 -msse4 -Os -fomit-frame-pointer ref
gcc -m64 -march=corei7 -O2 -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_sign/edons128ref/ref
Compiler: clang -O3 -fomit-frame-pointer -Qunused-arguments
mpfq_2_128.c: mpfq_2_128.c:154:35: warning: passing 'char *' to parameter of type 'const unsigned char *' converts between pointers to integer types with different sign [-Wpointer-sign]
mpfq_2_128.c: int ret = mpn_set_str(zz, tmp, len, k->io_type);
mpfq_2_128.c: ^~~
mpfq_2_128.c: /home/djb/benchmarking/supercop-20171218/supercop-data/h8bobcat/amd64/include/gmp.h:1588:68: note: passing argument to parameter here
mpfq_2_128.c: __GMP_DECLSPEC mp_size_t mpn_set_str (mp_ptr, const unsigned char *, size_t, int);
mpfq_2_128.c: ^
mpfq_2_128.c: 1 warning generated.
sign.c: sign.c:815:63: warning: incompatible pointer types passing 'int (const unsigned long *, const unsigned long *)' to parameter of type '__compar_fn_t' (aka 'int (*)(const void *, const void *)') [-Wincompatible-pointer-types]
sign.c: qsort(allcandidates, NumberOfAllCandidates, sizeof(Kelt), compare);
sign.c: ^~~~~~~
sign.c: /usr/include/stdlib.h:765:20: note: passing argument to parameter '__compar' here
sign.c: __compar_fn_t __compar) __nonnull ((1, 4));
sign.c: ^
sign.c: sign.c:566:83: warning: for loop has empty body [-Wempty-body]
sign.c: for(i=0; i<(1<<(mu + 1 + ErrorBasisDimension))+2; i++) Kinit(allcandidates[i]);
sign.c: ^
sign.c: sign.c:566:83: note: put the semicolon on a separate line to silence this warning
sign.c: sign.c:880:84: warning: for loop has empty body [-Wempty-body]
sign.c: for(i=0; i<(1<<(mu + 1 + ErrorBasisDimension))+2; i++) Kclear(allcandidates[i]);
sign.c: ^
sign.c: sign.c:880:84: note: put the semicolon on a separate line to silence this warning
sign.c: sign.c:975:63: warning: incompatible pointer types passing 'int (const unsigned long *, const unsigned long *)' to parameter of type '__compar_fn_t' (aka 'int (*)(const void *, const void *)') [-Wincompatible-pointer-types]
sign.c: qsort(allcandidates, NumberOfAllCandidates, sizeof(Kelt), compare);
sign.c: ^~~~~~~
sign.c: /usr/include/stdlib.h:765:20: note: passing argument to parameter '__compar' here
sign.c: __compar_fn_t __compar) __nonnull ((1, 4));
sign.c: ^
sign.c: sign.c:934:83: warning: for loop has empty body [-Wempty-body]
sign.c: for(i=0; i<(1<<(mu + 1 + ErrorBasisDimension))+2; i++) Kinit(allcandidates[i]);
sign.c: ^
sign.c: sign.c:934:83: note: put the semicolon on a separate line to silence this warning
sign.c: 5 warnings generated.

Number of similar (compiler,implementation) pairs: 6, namely:
CompilerImplementations
clang -O3 -fomit-frame-pointer -Qunused-arguments ref
clang -O3 -fwrapv -march=native -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_sign/edons128ref/ref
Compiler: gcc -m64 -march=barcelona -O2 -fomit-frame-pointer
sign.c: sign.c: In function 'crypto_sign_edons128ref_ref':
sign.c: sign.c:815:63: warning: passing argument 4 of 'qsort' from incompatible pointer type [-Wincompatible-pointer-types]
sign.c: qsort(allcandidates, NumberOfAllCandidates, sizeof(Kelt), compare);
sign.c: ^
sign.c: In file included from sign.c:2:0:
sign.c: /usr/include/stdlib.h:764:13: note: expected '__compar_fn_t {aka int (*)(const void *, const void *)}' but argument is of type 'int (*)(const long unsigned int *, const long unsigned int *)'
sign.c: extern void qsort (void *__base, size_t __nmemb, size_t __size,
sign.c: ^
sign.c: sign.c: In function 'crypto_sign_edons128ref_ref_open':
sign.c: sign.c:975:63: warning: passing argument 4 of 'qsort' from incompatible pointer type [-Wincompatible-pointer-types]
sign.c: qsort(allcandidates, NumberOfAllCandidates, sizeof(Kelt), compare);
sign.c: ^
sign.c: In file included from sign.c:2:0:
sign.c: /usr/include/stdlib.h:764:13: note: expected '__compar_fn_t {aka int (*)(const void *, const void *)}' but argument is of type 'int (*)(const long unsigned int *, const long unsigned int *)'
sign.c: extern void qsort (void *__base, size_t __nmemb, size_t __size,
sign.c: ^
sign.c: sign.c: In function 'crypto_sign_edons128ref_ref':
sign.c: sign.c:815:63: warning: passing argument 4 of 'qsort' from incompatible pointer type [-Wincompatible-pointer-types]
sign.c: qsort(allcandidates, NumberOfAllCandidates, sizeof(Kelt), compare);
sign.c: ^
sign.c: In file included from sign.c:2:0:
sign.c: /usr/include/stdlib.h:764:13: note: expected '__compar_fn_t {aka int (*)(const void *, const void *)}' but argument is of type 'int (*)(const long unsigned int *, const long unsigned int *)'
sign.c: extern void qsort (void *__base, size_t __nmemb, size_t __size,
sign.c: ^
sign.c: sign.c: In function 'crypto_sign_edons128ref_ref_open':
sign.c: sign.c:975:63: warning: passing argument 4 of 'qsort' from incompatible pointer type [-Wincompatible-pointer-types]
sign.c: qsort(allcandidates, NumberOfAllCandidates, sizeof(Kelt), compare);
sign.c: ^
sign.c: In file included from sign.c:2:0:
sign.c: /usr/include/stdlib.h:764:13: note: expected '__compar_fn_t {aka int (*)(const void *, const void *)}' but argument is of type 'int (*)(const long unsigned int *, const long unsigned int *)'
sign.c: extern void qsort (void *__base, size_t __nmemb, size_t __size,
sign.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