Implementation notes: amd64, genji154, crypto_dh/nist521gs

Computer: genji154
Architecture: amd64
CPU ID: GenuineIntel-00050671-bfebfbff
SUPERCOP version: 20170228
Operation: crypto_dh
Primitive: nist521gs
TimeObject sizeTest sizeImplementationCompilerBenchmark dateSUPERCOP version
20518108? ? ?? ? ?refgcc_-march=native_-mtune=native_-Os_-fomit-frame-pointer_-fwrapv2017022620170105
21910928? ? ?? ? ?refgcc_-m64_-march=corei7_-Os_-fomit-frame-pointer2017022620170105
21949551? ? ?? ? ?refgcc_-m64_-march=core2_-msse4.1_-Os_-fomit-frame-pointer2017022620170105
21951189? ? ?? ? ?refgcc_-m64_-march=core2_-msse4_-Os_-fomit-frame-pointer2017022620170105
21955258? ? ?? ? ?refgcc_-m64_-march=core2_-Os_-fomit-frame-pointer2017022620170105
21956311? ? ?? ? ?refgcc_-m64_-Os_-fomit-frame-pointer2017022620170105
21980842? ? ?? ? ?refgcc_-funroll-loops_-m64_-Os_-fomit-frame-pointer2017022620170105
21986757? ? ?? ? ?refgcc_-Os_-fomit-frame-pointer2017022620170105
22028461? ? ?? ? ?refgcc_-m64_-march=barcelona_-Os_-fomit-frame-pointer2017022620170105
22048221? ? ?? ? ?refgcc_-m64_-march=k8_-Os_-fomit-frame-pointer2017022620170105
22069320? ? ?? ? ?refgcc_-march=k8_-Os_-fomit-frame-pointer2017022620170105
22070555? ? ?? ? ?refgcc_-m64_-march=corei7-avx_-Os_-fomit-frame-pointer2017022620170105
22079057? ? ?? ? ?refgcc_-m64_-march=core-avx-i_-Os_-fomit-frame-pointer2017022620170105
22086064? ? ?? ? ?refgcc_-funroll-loops_-m64_-march=k8_-Os_-fomit-frame-pointer2017022620170105
22095788? ? ?? ? ?refgcc_-fno-schedule-insns_-Os_-fomit-frame-pointer2017022620170105
22096295? ? ?? ? ?refgcc_-funroll-loops_-m64_-march=barcelona_-Os_-fomit-frame-pointer2017022620170105
22130745? ? ?? ? ?refgcc_-funroll-loops_-fno-schedule-insns_-Os_-fomit-frame-pointer2017022620170105
22146150? ? ?? ? ?refgcc_-m64_-march=native_-mtune=native_-Os_-fomit-frame-pointer2017022620170105
22162010? ? ?? ? ?refgcc_-funroll-loops_-march=barcelona_-Os_-fomit-frame-pointer2017022620170105
22182381? ? ?? ? ?refgcc_-funroll-loops_-Os_-fomit-frame-pointer2017022620170105
22187854? ? ?? ? ?refgcc_-march=barcelona_-Os_-fomit-frame-pointer2017022620170105
22237722? ? ?? ? ?refgcc_-funroll-loops_-march=k8_-Os_-fomit-frame-pointer2017022620170105
22250488? ? ?? ? ?refgcc_-m64_-march=core-avx2_-Os_-fomit-frame-pointer2017022620170105
22278477? ? ?? ? ?refgcc_-march=nocona_-Os_-fomit-frame-pointer2017022620170105
22389562? ? ?? ? ?refgcc_-m64_-march=nocona_-Os_-fomit-frame-pointer2017022620170105
22415068? ? ?? ? ?refgcc_-funroll-loops_-march=nocona_-Os_-fomit-frame-pointer2017022620170105
22477949? ? ?? ? ?refgcc_-funroll-loops_-m64_-march=nocona_-Os_-fomit-frame-pointer2017022620170105
24837865? ? ?? ? ?refgcc_-O3_-fomit-frame-pointer2017022620170105
24854440? ? ?? ? ?refgcc_-m64_-O3_-fomit-frame-pointer2017022620170105
24859796? ? ?? ? ?refgcc_-funroll-loops_-O2_-fomit-frame-pointer2017022620170105
24875682? ? ?? ? ?refgcc_-funroll-loops_-fno-schedule-insns_-O2_-fomit-frame-pointer2017022620170105
24884470? ? ?? ? ?refgcc_-m64_-O2_-fomit-frame-pointer2017022620170105
24894441? ? ?? ? ?refgcc_-m64_-march=core2_-O3_-fomit-frame-pointer2017022620170105
24927201? ? ?? ? ?refgcc_-march=native_-mtune=native_-O3_-fomit-frame-pointer_-fwrapv2017022620170105
24938108? ? ?? ? ?refgcc_-m64_-march=core2_-msse4_-O2_-fomit-frame-pointer2017022620170105
24939525? ? ?? ? ?refgcc_-m64_-march=core2_-msse4.1_-O2_-fomit-frame-pointer2017022620170105
24947403? ? ?? ? ?refgcc_-march=k8_-O3_-fomit-frame-pointer2017022620170105
24947429? ? ?? ? ?refgcc_-m64_-march=core-avx-i_-O2_-fomit-frame-pointer2017022620170105
24952876? ? ?? ? ?refgcc_-m64_-march=corei7-avx_-O2_-fomit-frame-pointer2017022620170105
24970296? ? ?? ? ?refgcc_-funroll-loops_-m64_-march=k8_-O3_-fomit-frame-pointer2017022620170105
24990719? ? ?? ? ?refgcc_-fno-schedule-insns_-O2_-fomit-frame-pointer2017022620170105
24998077? ? ?? ? ?refgcc_-funroll-loops_-m64_-march=barcelona_-O2_-fomit-frame-pointer2017022620170105
25001782? ? ?? ? ?refgcc_-O2_-fomit-frame-pointer2017022620170105
25017122? ? ?? ? ?refgcc_-funroll-loops_-march=barcelona_-O2_-fomit-frame-pointer2017022620170105
25025000? ? ?? ? ?refgcc_-m64_-march=barcelona_-O2_-fomit-frame-pointer2017022620170105
25025767? ? ?? ? ?refgcc_-march=barcelona_-O2_-fomit-frame-pointer2017022620170105
25034698? ? ?? ? ?refgcc_-m64_-march=core2_-msse4.1_-O3_-fomit-frame-pointer2017022620170105
25046879? ? ?? ? ?refgcc_-march=k8_-O2_-fomit-frame-pointer2017022620170105
25049128? ? ?? ? ?refgcc_-m64_-march=core2_-O2_-fomit-frame-pointer2017022620170105
25049388? ? ?? ? ?refgcc_-m64_-march=corei7_-O2_-fomit-frame-pointer2017022620170105
25050142? ? ?? ? ?refgcc_-funroll-loops_-m64_-O2_-fomit-frame-pointer2017022620170105
25062518? ? ?? ? ?refgcc_-m64_-march=core-avx2_-O2_-fomit-frame-pointer2017022620170105
25067861? ? ?? ? ?refgcc_-m64_-march=k8_-O2_-fomit-frame-pointer2017022620170105
25071111? ? ?? ? ?refgcc_-march=native_-mtune=native_-O2_-fomit-frame-pointer_-fwrapv2017022620170105
25090130? ? ?? ? ?refgcc_-funroll-loops_-m64_-O3_-fomit-frame-pointer2017022620170105
25117482? ? ?? ? ?refgcc_-funroll-loops_-m64_-march=barcelona_-O3_-fomit-frame-pointer2017022620170105
25118444? ? ?? ? ?refgcc_-fno-schedule-insns_-O3_-fomit-frame-pointer2017022620170105
25154272? ? ?? ? ?refgcc_-m64_-march=core2_-msse4_-O3_-fomit-frame-pointer2017022620170105
25159771? ? ?? ? ?refgcc_-m64_-march=k8_-O3_-fomit-frame-pointer2017022620170105
25193246? ? ?? ? ?reficc_-xMIC-AVX512_-O3_-fomit-frame-pointer2017022620170105
25194247? ? ?? ? ?refgcc_-m64_-march=core-avx-i_-O3_-fomit-frame-pointer2017022620170105
25196782? ? ?? ? ?refgcc_-funroll-loops_-m64_-march=k8_-O2_-fomit-frame-pointer2017022620170105
25206298? ? ?? ? ?refclang_-mcpu=cortex-a8_-mfpu=neon_-O3_-fomit-frame-pointer_-fwrapv_-Qunused-arguments2017041020170228
25208365? ? ?? ? ?refgcc_-m64_-march=native_-mtune=native_-O3_-fomit-frame-pointer2017022620170105
25217244? ? ?? ? ?refgcc_-m64_-march=corei7-avx_-O3_-fomit-frame-pointer2017022620170105
25232818? ? ?? ? ?refgcc_-m64_-march=core-avx2_-O3_-fomit-frame-pointer2017022620170105
25239591? ? ?? ? ?refclang_-O3_-fomit-frame-pointer_-Qunused-arguments2017041020170228
25242659? ? ?? ? ?refgcc_-funroll-loops_-m64_-march=nocona_-O3_-fomit-frame-pointer2017022620170105
25262445? ? ?? ? ?refgcc_-m64_-march=barcelona_-O3_-fomit-frame-pointer2017022620170105
25266683? ? ?? ? ?refgcc_-march=nocona_-O3_-fomit-frame-pointer2017022620170105
25270089? ? ?? ? ?refgcc_-m64_-march=corei7_-O3_-fomit-frame-pointer2017022620170105
25275354? ? ?? ? ?refgcc_-funroll-loops_-march=k8_-O2_-fomit-frame-pointer2017022620170105
25320542? ? ?? ? ?refgcc_-funroll-loops_-march=barcelona_-O3_-fomit-frame-pointer2017022620170105
25325092? ? ?? ? ?refgcc_-m64_-march=native_-mtune=native_-O2_-fomit-frame-pointer2017022620170105
25372035? ? ?? ? ?refclang_-mcpu=native_-mfpu=neon_-O3_-fomit-frame-pointer_-fwrapv_-Qunused-arguments2017041020170228
25377469? ? ?? ? ?refgcc_-funroll-loops_-march=k8_-O3_-fomit-frame-pointer2017022620170105
25424659? ? ?? ? ?refgcc_-march=nocona_-O2_-fomit-frame-pointer2017022620170105
25431952? ? ?? ? ?refgcc_-m64_-march=nocona_-O2_-fomit-frame-pointer2017022620170105
25435319? ? ?? ? ?refgcc_-funroll-loops_-march=nocona_-O2_-fomit-frame-pointer2017022620170105
25488346? ? ?? ? ?refgcc_-funroll-loops_-march=nocona_-O3_-fomit-frame-pointer2017022620170105
25491505? ? ?? ? ?refgcc_-m64_-march=nocona_-O3_-fomit-frame-pointer2017022620170105
25501047? ? ?? ? ?refclang_-mcpu=cortex-a9_-mfpu=neon_-O3_-fomit-frame-pointer_-fwrapv_-Qunused-arguments2017041020170228
25515464? ? ?? ? ?refgcc_-funroll-loops_-fno-schedule-insns_-O3_-fomit-frame-pointer2017022620170105
25518168? ? ?? ? ?refgcc_-funroll-loops_-m64_-march=nocona_-O2_-fomit-frame-pointer2017022620170105
25525851? ? ?? ? ?refgcc_-march=barcelona_-O3_-fomit-frame-pointer2017022620170105
25711413? ? ?? ? ?reficc_-xMIC-AVX512_-O2_-fomit-frame-pointer2017022620170105
25782133? ? ?? ? ?refgcc_-funroll-loops_-O3_-fomit-frame-pointer2017022620170105
25798812? ? ?? ? ?refclang_-O3_-fwrapv_-mavx_-fomit-frame-pointer_-Qunused-arguments2017041020170228
25966577? ? ?? ? ?refclang_-O3_-fwrapv_-march=x86-64_-mcpu=core-avx2_-mavx2_-maes_-mpclmul_-fomit-frame-pointer_-Qunused-arguments2017041020170228
26012649? ? ?? ? ?refclang_-O3_-fwrapv_-mavx_-maes_-mpclmul_-fomit-frame-pointer_-Qunused-arguments2017041020170228
26029614? ? ?? ? ?refclang_-O3_-fwrapv_-mavx2_-fomit-frame-pointer_-Qunused-arguments2017041020170228
26576901? ? ?? ? ?reficc_-no-vec2017022620170105
26993473? ? ?? ? ?reficc2017022620170105
30393168? ? ?? ? ?refclang_-O3_-fwrapv_-march=native_-fomit-frame-pointer_-Qunused-arguments2017041020170228
30452188? ? ?? ? ?refclang_-march=native_-O3_-fomit-frame-pointer_-fwrapv_-Qunused-arguments2017041020170228
30772703? ? ?? ? ?refgcc_-funroll-loops_-march=k8_-O_-fomit-frame-pointer2017022620170105
30799522? ? ?? ? ?refgcc_-funroll-loops_-m64_-march=barcelona_-O_-fomit-frame-pointer2017022620170105
30828889? ? ?? ? ?refgcc_-m64_-march=barcelona_-O_-fomit-frame-pointer2017022620170105
30888936? ? ?? ? ?refgcc_-funroll-loops_-march=barcelona_-O_-fomit-frame-pointer2017022620170105
30935671? ? ?? ? ?refgcc_-m64_-march=k8_-O_-fomit-frame-pointer2017022620170105
30943367? ? ?? ? ?refgcc_-funroll-loops_-m64_-march=k8_-O_-fomit-frame-pointer2017022620170105
30964206? ? ?? ? ?refgcc_-funroll-loops_-O_-fomit-frame-pointer2017022620170105
30982991? ? ?? ? ?refgcc_-funroll-loops_-m64_-O_-fomit-frame-pointer2017022620170105
30994184? ? ?? ? ?refgcc_-m64_-march=core2_-msse4_-O_-fomit-frame-pointer2017022620170105
30996004? ? ?? ? ?refgcc_-march=k8_-O_-fomit-frame-pointer2017022620170105
30998578? ? ?? ? ?refgcc_-funroll-loops_-fno-schedule-insns_-O_-fomit-frame-pointer2017022620170105
31005312? ? ?? ? ?refgcc_-O_-fomit-frame-pointer2017022620170105
31006391? ? ?? ? ?refgcc_-fno-schedule-insns_-O_-fomit-frame-pointer2017022620170105
31010941? ? ?? ? ?refgcc_-m64_-march=core2_-msse4.1_-O_-fomit-frame-pointer2017022620170105
31013229? ? ?? ? ?refgcc_-funroll-loops_-m64_-march=nocona_-O_-fomit-frame-pointer2017022620170105
31014113? ? ?? ? ?refgcc_-m64_-march=nocona_-O_-fomit-frame-pointer2017022620170105
31014854? ? ?? ? ?refgcc_-funroll-loops_-march=nocona_-O_-fomit-frame-pointer2017022620170105
31022238? ? ?? ? ?refgcc_-m64_-march=core-avx-i_-O_-fomit-frame-pointer2017022620170105
31034211? ? ?? ? ?refgcc_-march=nocona_-O_-fomit-frame-pointer2017022620170105
31207189? ? ?? ? ?refgcc_-march=barcelona_-O_-fomit-frame-pointer2017022620170105
31236634? ? ?? ? ?refgcc_-m64_-march=corei7-avx_-O_-fomit-frame-pointer2017022620170105
31252247? ? ?? ? ?refgcc_-m64_-march=corei7_-O_-fomit-frame-pointer2017022620170105
31477615? ? ?? ? ?refgcc_-m64_-march=native_-mtune=native_-O_-fomit-frame-pointer2017022620170105
31494528? ? ?? ? ?refgcc_-m64_-O_-fomit-frame-pointer2017022620170105
31635812? ? ?? ? ?refgcc_-m64_-march=core-avx2_-O_-fomit-frame-pointer2017022620170105
31985824? ? ?? ? ?refgcc_-march=native_-mtune=native_-O_-fomit-frame-pointer_-fwrapv2017022620170105
32120257? ? ?? ? ?refgcc_-m64_-march=core2_-O_-fomit-frame-pointer2017022620170105
47750781? ? ?? ? ?refgcc2017022620170105
48077393? ? ?? ? ?refcc2017022620170105
48456460? ? ?? ? ?refgcc_-funroll-loops2017022620170105

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: 10, namely:
CompilerImplementations
clang -O3 -fomit-frame-pointer -Qunused-arguments ref
clang -O3 -fwrapv -march=native -fomit-frame-pointer -Qunused-arguments ref
clang -O3 -fwrapv -march=x86-64 -mcpu=core-avx2 -mavx2 -maes -mpclmul -fomit-frame-pointer -Qunused-arguments ref
clang -O3 -fwrapv -mavx2 -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
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
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_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

Compiler output

Implementation: crypto_dh/nist521gs/ref
Compiler: icc
dh.c: dh.c(831): warning #266: function "randombytes" declared implicitly
dh.c: randombytes(sk,PANES-1);
dh.c: ^
dh.c:

Number of similar (compiler,implementation) pairs: 4, namely:
CompilerImplementations
icc ref
icc -no-vec ref
icc -xMIC-AVX512 -O2 -fomit-frame-pointer ref
icc -xMIC-AVX512 -O3 -fomit-frame-pointer ref