Implementation notes: amd64, gcc16, crypto_hash/skein256256

Computer: gcc16
Architecture: amd64
CPU ID: AuthenticAMD-00100f23-178bfbff
SUPERCOP version: 20171020
Operation: crypto_hash
Primitive: skein256256
TimeObject sizeTest sizeImplementationCompilerBenchmark dateSUPERCOP version
9900? ? ?? ? ?optgcc_-fno-schedule-insns_-O_-fomit-frame-pointer2017072120170718
9901? ? ?? ? ?optgcc_-O_-fomit-frame-pointer2017072120170718
9906? ? ?? ? ?optgcc_-funroll-loops_-m64_-march=barcelona_-O_-fomit-frame-pointer2017072120170718
9906? ? ?? ? ?optgcc_-m64_-march=nocona_-O_-fomit-frame-pointer2017072120170718
9938? ? ?? ? ?optgcc_-m64_-march=barcelona_-O_-fomit-frame-pointer2017072120170718
9938? ? ?? ? ?optgcc_-march=barcelona_-O_-fomit-frame-pointer2017072120170718
9940? ? ?? ? ?optgcc_-funroll-loops_-O_-fomit-frame-pointer2017072120170718
9944? ? ?? ? ?optgcc_-funroll-loops_-fno-schedule-insns_-O_-fomit-frame-pointer2017072120170718
9946? ? ?? ? ?optgcc_-funroll-loops_-m64_-march=k8_-O_-fomit-frame-pointer2017072120170718
9946? ? ?? ? ?optgcc_-funroll-loops_-march=k8_-O_-fomit-frame-pointer2017072120170718
9946? ? ?? ? ?optgcc_-m64_-O_-fomit-frame-pointer2017072120170718
9949? ? ?? ? ?optgcc_-march=nocona_-O_-fomit-frame-pointer2017072120170718
9953? ? ?? ? ?optgcc_-m64_-march=core2_-O_-fomit-frame-pointer2017072120170718
9953? ? ?? ? ?optgcc_-m64_-march=core2_-msse4_-O_-fomit-frame-pointer2017072120170718
9956? ? ?? ? ?optgcc_-m64_-march=core2_-msse4.1_-O_-fomit-frame-pointer2017072120170718
9958? ? ?? ? ?optgcc_-funroll-loops_-march=barcelona_-O_-fomit-frame-pointer2017072120170718
9977? ? ?? ? ?optgcc_-m64_-march=native_-mtune=native_-O_-fomit-frame-pointer2017072120170718
9977? ? ?? ? ?optgcc_-march=native_-mtune=native_-O_-fomit-frame-pointer_-fwrapv2017072120170718
9983? ? ?? ? ?optgcc_-m64_-march=k8_-O_-fomit-frame-pointer2017072120170718
9988? ? ?? ? ?optgcc_-funroll-loops_-m64_-O_-fomit-frame-pointer2017072120170718
9997? ? ?? ? ?optgcc_-march=k8_-O_-fomit-frame-pointer2017072120170718
10072? ? ?? ? ?optgcc_-funroll-loops_-march=nocona_-O_-fomit-frame-pointer2017072120170718
10078? ? ?? ? ?optgcc_-funroll-loops_-m64_-march=nocona_-O_-fomit-frame-pointer2017072120170718
11489? ? ?? ? ?x64gcc_-m64_-march=native_-mtune=native_-O3_-fomit-frame-pointer2017072120170718
11492? ? ?? ? ?x64gcc_-march=native_-mtune=native_-O3_-fomit-frame-pointer_-fwrapv2017072120170718
11493? ? ?? ? ?x64gcc_-funroll-loops_-m64_-march=barcelona_-O2_-fomit-frame-pointer2017072120170718
11493? ? ?? ? ?x64gcc_-funroll-loops_-march=barcelona_-O2_-fomit-frame-pointer2017072120170718
11493? ? ?? ? ?x64gcc_-m64_-march=barcelona_-O3_-fomit-frame-pointer2017072120170718
11494? ? ?? ? ?x64gcc_-m64_-march=k8_-O3_-fomit-frame-pointer2017072120170718
11494? ? ?? ? ?x64gcc_-march=k8_-O3_-fomit-frame-pointer2017072120170718
11494? ? ?? ? ?x64gcc_-march=native_-mtune=native_-O2_-fomit-frame-pointer_-fwrapv2017072120170718
11495? ? ?? ? ?x64gcc_-funroll-loops_-m64_-march=k8_-O2_-fomit-frame-pointer2017072120170718
11495? ? ?? ? ?x64gcc_-funroll-loops_-march=k8_-O2_-fomit-frame-pointer2017072120170718
11496? ? ?? ? ?x64gcc_-funroll-loops_-m64_-march=barcelona_-O3_-fomit-frame-pointer2017072120170718
11496? ? ?? ? ?x64gcc_-funroll-loops_-march=k8_-O3_-fomit-frame-pointer2017072120170718
11497? ? ?? ? ?x64gcc_-funroll-loops_-march=barcelona_-O3_-fomit-frame-pointer2017072120170718
11498? ? ?? ? ?x64gcc_-m64_-march=k8_-O2_-fomit-frame-pointer2017072120170718
11499? ? ?? ? ?x64gcc_-march=k8_-O2_-fomit-frame-pointer2017072120170718
11500? ? ?? ? ?x64gcc_-funroll-loops_-m64_-march=k8_-O3_-fomit-frame-pointer2017072120170718
11516? ? ?? ? ?x64gcc_-m64_-march=barcelona_-O2_-fomit-frame-pointer2017072120170718
11516? ? ?? ? ?x64gcc_-march=barcelona_-O3_-fomit-frame-pointer2017072120170718
11517? ? ?? ? ?x64gcc_-m64_-march=native_-mtune=native_-O2_-fomit-frame-pointer2017072120170718
11532? ? ?? ? ?x64gcc_-m64_-O2_-fomit-frame-pointer2017072120170718
11532? ? ?? ? ?x64gcc_-march=nocona_-O2_-fomit-frame-pointer2017072120170718
11533? ? ?? ? ?x64gcc_-funroll-loops_-m64_-march=nocona_-O3_-fomit-frame-pointer2017072120170718
11534? ? ?? ? ?x64gcc_-O2_-fomit-frame-pointer2017072120170718
11534? ? ?? ? ?x64gcc_-fno-schedule-insns_-O2_-fomit-frame-pointer2017072120170718
11534? ? ?? ? ?x64gcc_-funroll-loops_-fno-schedule-insns_-O2_-fomit-frame-pointer2017072120170718
11534? ? ?? ? ?x64gcc_-m64_-march=nocona_-O2_-fomit-frame-pointer2017072120170718
11534? ? ?? ? ?x64gcc_-march=barcelona_-O2_-fomit-frame-pointer2017072120170718
11535? ? ?? ? ?x64gcc_-funroll-loops_-m64_-O2_-fomit-frame-pointer2017072120170718
11535? ? ?? ? ?x64gcc_-m64_-march=core2_-O3_-fomit-frame-pointer2017072120170718
11535? ? ?? ? ?x64gcc_-m64_-march=nocona_-O3_-fomit-frame-pointer2017072120170718
11536? ? ?? ? ?x64gcc_-funroll-loops_-march=nocona_-O2_-fomit-frame-pointer2017072120170718
11536? ? ?? ? ?x64gcc_-m64_-march=core2_-msse4_-O3_-fomit-frame-pointer2017072120170718
11537? ? ?? ? ?x64gcc_-funroll-loops_-O2_-fomit-frame-pointer2017072120170718
11537? ? ?? ? ?x64gcc_-funroll-loops_-O3_-fomit-frame-pointer2017072120170718
11538? ? ?? ? ?x64gcc_-fno-schedule-insns_-O3_-fomit-frame-pointer2017072120170718
11539? ? ?? ? ?x64gcc_-O3_-fomit-frame-pointer2017072120170718
11539? ? ?? ? ?x64gcc_-funroll-loops_-m64_-march=nocona_-O2_-fomit-frame-pointer2017072120170718
11539? ? ?? ? ?x64gcc_-m64_-O3_-fomit-frame-pointer2017072120170718
11539? ? ?? ? ?x64gcc_-m64_-march=core2_-O2_-fomit-frame-pointer2017072120170718
11539? ? ?? ? ?x64gcc_-m64_-march=core2_-msse4.1_-O3_-fomit-frame-pointer2017072120170718
11539? ? ?? ? ?x64gcc_-march=nocona_-O3_-fomit-frame-pointer2017072120170718
11545? ? ?? ? ?x64gcc_-O_-fomit-frame-pointer2017072120170718
11546? ? ?? ? ?x64gcc_-fno-schedule-insns_-O_-fomit-frame-pointer2017072120170718
11546? ? ?? ? ?x64gcc_-m64_-O_-fomit-frame-pointer2017072120170718
11546? ? ?? ? ?x64gcc_-m64_-march=barcelona_-O_-fomit-frame-pointer2017072120170718
11546? ? ?? ? ?x64gcc_-m64_-march=nocona_-O_-fomit-frame-pointer2017072120170718
11546? ? ?? ? ?x64gcc_-march=barcelona_-O_-fomit-frame-pointer2017072120170718
11546? ? ?? ? ?x64gcc_-march=native_-mtune=native_-O_-fomit-frame-pointer_-fwrapv2017072120170718
11547? ? ?? ? ?x64gcc_-funroll-loops_-march=barcelona_-O_-fomit-frame-pointer2017072120170718
11549? ? ?? ? ?x64gcc_-m64_-march=native_-mtune=native_-O_-fomit-frame-pointer2017072120170718
11550? ? ?? ? ?x64gcc_-funroll-loops_-m64_-O_-fomit-frame-pointer2017072120170718
11550? ? ?? ? ?x64gcc_-funroll-loops_-m64_-march=k8_-O_-fomit-frame-pointer2017072120170718
11550? ? ?? ? ?x64gcc_-funroll-loops_-march=k8_-O_-fomit-frame-pointer2017072120170718
11550? ? ?? ? ?x64gcc_-march=nocona_-O_-fomit-frame-pointer2017072120170718
11551? ? ?? ? ?x64gcc_-funroll-loops_-fno-schedule-insns_-O_-fomit-frame-pointer2017072120170718
11551? ? ?? ? ?x64gcc_-funroll-loops_-m64_-march=barcelona_-O_-fomit-frame-pointer2017072120170718
11552? ? ?? ? ?x64gcc_-funroll-loops_-O_-fomit-frame-pointer2017072120170718
11560? ? ?? ? ?x64gcc_-funroll-loops_-march=nocona_-O3_-fomit-frame-pointer2017072120170718
11560? ? ?? ? ?x64gcc_-m64_-march=core2_-msse4.1_-O2_-fomit-frame-pointer2017072120170718
11561? ? ?? ? ?x64gcc_-funroll-loops_-fno-schedule-insns_-O3_-fomit-frame-pointer2017072120170718
11561? ? ?? ? ?x64gcc_-funroll-loops_-m64_-march=nocona_-O_-fomit-frame-pointer2017072120170718
11561? ? ?? ? ?x64gcc_-m64_-march=core2_-O_-fomit-frame-pointer2017072120170718
11561? ? ?? ? ?x64gcc_-m64_-march=core2_-msse4.1_-O_-fomit-frame-pointer2017072120170718
11561? ? ?? ? ?x64gcc_-march=k8_-O_-fomit-frame-pointer2017072120170718
11562? ? ?? ? ?x64gcc_-funroll-loops_-m64_-O3_-fomit-frame-pointer2017072120170718
11562? ? ?? ? ?x64gcc_-m64_-march=core2_-msse4_-O2_-fomit-frame-pointer2017072120170718
11564? ? ?? ? ?x64gcc_-m64_-march=k8_-O_-fomit-frame-pointer2017072120170718
11565? ? ?? ? ?x64gcc_-m64_-march=core2_-msse4_-O_-fomit-frame-pointer2017072120170718
11566? ? ?? ? ?x64gcc_-funroll-loops_-march=nocona_-O_-fomit-frame-pointer2017072120170718
11622? ? ?? ? ?x64gcc_-march=nocona_-Os_-fomit-frame-pointer2017072120170718
11623? ? ?? ? ?x64gcc_-m64_-Os_-fomit-frame-pointer2017072120170718
11624? ? ?? ? ?x64gcc_-Os_-fomit-frame-pointer2017072120170718
11624? ? ?? ? ?x64gcc_-funroll-loops_-Os_-fomit-frame-pointer2017072120170718
11624? ? ?? ? ?x64gcc_-m64_-march=k8_-Os_-fomit-frame-pointer2017072120170718
11624? ? ?? ? ?x64gcc_-march=k8_-Os_-fomit-frame-pointer2017072120170718
11625? ? ?? ? ?x64gcc_-m64_-march=barcelona_-Os_-fomit-frame-pointer2017072120170718
11625? ? ?? ? ?x64gcc_-march=barcelona_-Os_-fomit-frame-pointer2017072120170718
11626? ? ?? ? ?x64gcc_-funroll-loops_-m64_-Os_-fomit-frame-pointer2017072120170718
11626? ? ?? ? ?x64gcc_-funroll-loops_-m64_-march=k8_-Os_-fomit-frame-pointer2017072120170718
11626? ? ?? ? ?x64gcc_-funroll-loops_-march=k8_-Os_-fomit-frame-pointer2017072120170718
11626? ? ?? ? ?x64gcc_-funroll-loops_-march=nocona_-Os_-fomit-frame-pointer2017072120170718
11627? ? ?? ? ?x64gcc_-fno-schedule-insns_-Os_-fomit-frame-pointer2017072120170718
11631? ? ?? ? ?x64gcc_-funroll-loops_-m64_-march=barcelona_-Os_-fomit-frame-pointer2017072120170718
11631? ? ?? ? ?x64gcc_-funroll-loops_-march=barcelona_-Os_-fomit-frame-pointer2017072120170718
11631? ? ?? ? ?x64gcc_-m64_-march=native_-mtune=native_-Os_-fomit-frame-pointer2017072120170718
11631? ? ?? ? ?x64gcc_-march=native_-mtune=native_-Os_-fomit-frame-pointer_-fwrapv2017072120170718
11632? ? ?? ? ?x64gcc_-funroll-loops_-fno-schedule-insns_-Os_-fomit-frame-pointer2017072120170718
11632? ? ?? ? ?x64gcc_-funroll-loops_-m64_-march=nocona_-Os_-fomit-frame-pointer2017072120170718
11649? ? ?? ? ?x64cc2017072120170718
11649? ? ?? ? ?x64gcc_-funroll-loops2017072120170718
11650? ? ?? ? ?x64gcc2017072120170718
11653? ? ?? ? ?x64gcc_-m64_-march=core2_-Os_-fomit-frame-pointer2017072120170718
11653? ? ?? ? ?x64gcc_-m64_-march=core2_-msse4.1_-Os_-fomit-frame-pointer2017072120170718
11653? ? ?? ? ?x64gcc_-m64_-march=core2_-msse4_-Os_-fomit-frame-pointer2017072120170718
11655? ? ?? ? ?x64gcc_-m64_-march=nocona_-Os_-fomit-frame-pointer2017072120170718
11680? ? ?? ? ?optgcc_-funroll-loops_-m64_-march=nocona_-Os_-fomit-frame-pointer2017072120170718
11687? ? ?? ? ?optgcc_-funroll-loops_-march=nocona_-Os_-fomit-frame-pointer2017072120170718
11693? ? ?? ? ?optgcc_-march=nocona_-Os_-fomit-frame-pointer2017072120170718
11710? ? ?? ? ?optgcc_-m64_-march=nocona_-Os_-fomit-frame-pointer2017072120170718
11820? ? ?? ? ?optgcc_-funroll-loops_-m64_-march=barcelona_-Os_-fomit-frame-pointer2017072120170718
11820? ? ?? ? ?optgcc_-funroll-loops_-march=barcelona_-Os_-fomit-frame-pointer2017072120170718
11825? ? ?? ? ?optgcc_-m64_-march=native_-mtune=native_-Os_-fomit-frame-pointer2017072120170718
11827? ? ?? ? ?optgcc_-march=native_-mtune=native_-Os_-fomit-frame-pointer_-fwrapv2017072120170718
11831? ? ?? ? ?optgcc_-m64_-march=barcelona_-Os_-fomit-frame-pointer2017072120170718
11831? ? ?? ? ?optgcc_-march=barcelona_-Os_-fomit-frame-pointer2017072120170718
12061? ? ?? ? ?optgcc_-funroll-loops_-Os_-fomit-frame-pointer2017072120170718
12067? ? ?? ? ?optgcc_-funroll-loops_-m64_-Os_-fomit-frame-pointer2017072120170718
12067? ? ?? ? ?optgcc_-funroll-loops_-m64_-march=k8_-Os_-fomit-frame-pointer2017072120170718
12067? ? ?? ? ?optgcc_-funroll-loops_-march=k8_-Os_-fomit-frame-pointer2017072120170718
12068? ? ?? ? ?optgcc_-funroll-loops_-fno-schedule-insns_-Os_-fomit-frame-pointer2017072120170718
12111? ? ?? ? ?optgcc_-Os_-fomit-frame-pointer2017072120170718
12111? ? ?? ? ?optgcc_-m64_-Os_-fomit-frame-pointer2017072120170718
12111? ? ?? ? ?optgcc_-m64_-march=k8_-Os_-fomit-frame-pointer2017072120170718
12111? ? ?? ? ?optgcc_-march=k8_-Os_-fomit-frame-pointer2017072120170718
12118? ? ?? ? ?optgcc_-fno-schedule-insns_-Os_-fomit-frame-pointer2017072120170718
12313? ? ?? ? ?optgcc_-m64_-march=core2_-msse4_-O3_-fomit-frame-pointer2017072120170718
12315? ? ?? ? ?optgcc_-m64_-march=core2_-O3_-fomit-frame-pointer2017072120170718
12315? ? ?? ? ?optgcc_-m64_-march=core2_-msse4.1_-O3_-fomit-frame-pointer2017072120170718
12315? ? ?? ? ?optgcc_-march=nocona_-O2_-fomit-frame-pointer2017072120170718
12321? ? ?? ? ?optgcc_-m64_-march=core2_-O2_-fomit-frame-pointer2017072120170718
12322? ? ?? ? ?optgcc_-m64_-march=core2_-msse4.1_-O2_-fomit-frame-pointer2017072120170718
12325? ? ?? ? ?optgcc_-m64_-march=core2_-msse4_-O2_-fomit-frame-pointer2017072120170718
12334? ? ?? ? ?optgcc_-m64_-march=nocona_-O3_-fomit-frame-pointer2017072120170718
12335? ? ?? ? ?optgcc_-funroll-loops_-march=nocona_-O3_-fomit-frame-pointer2017072120170718
12336? ? ?? ? ?optgcc_-m64_-march=nocona_-O2_-fomit-frame-pointer2017072120170718
12340? ? ?? ? ?optgcc_-march=nocona_-O3_-fomit-frame-pointer2017072120170718
12342? ? ?? ? ?optgcc_-funroll-loops_-m64_-march=nocona_-O3_-fomit-frame-pointer2017072120170718
12342? ? ?? ? ?optgcc_-funroll-loops_-march=barcelona_-O3_-fomit-frame-pointer2017072120170718
12344? ? ?? ? ?optgcc_-funroll-loops_-m64_-march=barcelona_-O3_-fomit-frame-pointer2017072120170718
12349? ? ?? ? ?optgcc_-funroll-loops_-m64_-march=barcelona_-O2_-fomit-frame-pointer2017072120170718
12349? ? ?? ? ?optgcc_-funroll-loops_-march=barcelona_-O2_-fomit-frame-pointer2017072120170718
12357? ? ?? ? ?optgcc_-funroll-loops_-march=nocona_-O2_-fomit-frame-pointer2017072120170718
12397? ? ?? ? ?optgcc_-funroll-loops_-m64_-march=nocona_-O2_-fomit-frame-pointer2017072120170718
12418? ? ?? ? ?optgcc_-funroll-loops_-m64_-march=k8_-O2_-fomit-frame-pointer2017072120170718
12418? ? ?? ? ?optgcc_-funroll-loops_-march=k8_-O2_-fomit-frame-pointer2017072120170718
12419? ? ?? ? ?optgcc_-funroll-loops_-O2_-fomit-frame-pointer2017072120170718
12419? ? ?? ? ?optgcc_-funroll-loops_-fno-schedule-insns_-O2_-fomit-frame-pointer2017072120170718
12420? ? ?? ? ?optgcc_-m64_-O2_-fomit-frame-pointer2017072120170718
12420? ? ?? ? ?optgcc_-march=k8_-O2_-fomit-frame-pointer2017072120170718
12421? ? ?? ? ?optgcc_-O2_-fomit-frame-pointer2017072120170718
12422? ? ?? ? ?optgcc_-funroll-loops_-m64_-march=k8_-O3_-fomit-frame-pointer2017072120170718
12422? ? ?? ? ?optgcc_-march=barcelona_-O3_-fomit-frame-pointer2017072120170718
12424? ? ?? ? ?optgcc_-fno-schedule-insns_-O3_-fomit-frame-pointer2017072120170718
12424? ? ?? ? ?optgcc_-m64_-march=k8_-O2_-fomit-frame-pointer2017072120170718
12426? ? ?? ? ?optgcc_-funroll-loops_-m64_-O2_-fomit-frame-pointer2017072120170718
12426? ? ?? ? ?optgcc_-m64_-march=native_-mtune=native_-O3_-fomit-frame-pointer2017072120170718
12427? ? ?? ? ?optgcc_-march=native_-mtune=native_-O3_-fomit-frame-pointer_-fwrapv2017072120170718
12440? ? ?? ? ?optgcc_-m64_-march=native_-mtune=native_-O2_-fomit-frame-pointer2017072120170718
12440? ? ?? ? ?optgcc_-march=native_-mtune=native_-O2_-fomit-frame-pointer_-fwrapv2017072120170718
12441? ? ?? ? ?optgcc_-funroll-loops_-march=k8_-O3_-fomit-frame-pointer2017072120170718
12442? ? ?? ? ?optgcc_-m64_-march=barcelona_-O3_-fomit-frame-pointer2017072120170718
12443? ? ?? ? ?optgcc_-funroll-loops_-fno-schedule-insns_-O3_-fomit-frame-pointer2017072120170718
12445? ? ?? ? ?optgcc_-funroll-loops_-m64_-O3_-fomit-frame-pointer2017072120170718
12446? ? ?? ? ?optgcc_-funroll-loops_-O3_-fomit-frame-pointer2017072120170718
12446? ? ?? ? ?optgcc_-march=barcelona_-O2_-fomit-frame-pointer2017072120170718
12447? ? ?? ? ?optgcc_-m64_-march=barcelona_-O2_-fomit-frame-pointer2017072120170718
12448? ? ?? ? ?optgcc_-m64_-march=k8_-O3_-fomit-frame-pointer2017072120170718
12448? ? ?? ? ?optgcc_-march=k8_-O3_-fomit-frame-pointer2017072120170718
12449? ? ?? ? ?optgcc_-fno-schedule-insns_-O2_-fomit-frame-pointer2017072120170718
12449? ? ?? ? ?optgcc_-m64_-O3_-fomit-frame-pointer2017072120170718
12452? ? ?? ? ?optgcc_-O3_-fomit-frame-pointer2017072120170718
12820? ? ?? ? ?optgcc_-m64_-march=core2_-msse4.1_-Os_-fomit-frame-pointer2017072120170718
12820? ? ?? ? ?optgcc_-m64_-march=core2_-msse4_-Os_-fomit-frame-pointer2017072120170718
12842? ? ?? ? ?optgcc_-m64_-march=core2_-Os_-fomit-frame-pointer2017072120170718
78733? ? ?? ? ?optgcc_-funroll-loops2017072120170718
78743? ? ?? ? ?optcc2017072120170718
78743? ? ?? ? ?optgcc2017072120170718

Compiler output

Implementation: crypto_hash/skein256256/x64
Compiler: cc
skein_block_x64.S: skein_block_x64.S:336:61: warning: trigraph ??) ignored, use -trigraphs to enable

Number of similar (compiler,implementation) pairs: 91, namely:
CompilerImplementations
cc x64
gcc x64
gcc -O2 -fomit-frame-pointer x64
gcc -O3 -fomit-frame-pointer x64
gcc -O -fomit-frame-pointer x64
gcc -Os -fomit-frame-pointer x64
gcc -fno-schedule-insns -O2 -fomit-frame-pointer x64
gcc -fno-schedule-insns -O3 -fomit-frame-pointer x64
gcc -fno-schedule-insns -O -fomit-frame-pointer x64
gcc -fno-schedule-insns -Os -fomit-frame-pointer x64
gcc -funroll-loops x64
gcc -funroll-loops -O2 -fomit-frame-pointer x64
gcc -funroll-loops -O3 -fomit-frame-pointer x64
gcc -funroll-loops -O -fomit-frame-pointer x64
gcc -funroll-loops -Os -fomit-frame-pointer x64
gcc -funroll-loops -fno-schedule-insns -O2 -fomit-frame-pointer x64
gcc -funroll-loops -fno-schedule-insns -O3 -fomit-frame-pointer x64
gcc -funroll-loops -fno-schedule-insns -O -fomit-frame-pointer x64
gcc -funroll-loops -fno-schedule-insns -Os -fomit-frame-pointer x64
gcc -funroll-loops -m64 -O2 -fomit-frame-pointer x64
gcc -funroll-loops -m64 -O3 -fomit-frame-pointer x64
gcc -funroll-loops -m64 -O -fomit-frame-pointer x64
gcc -funroll-loops -m64 -Os -fomit-frame-pointer x64
gcc -funroll-loops -m64 -march=barcelona -O2 -fomit-frame-pointer x64
gcc -funroll-loops -m64 -march=barcelona -O3 -fomit-frame-pointer x64
gcc -funroll-loops -m64 -march=barcelona -O -fomit-frame-pointer x64
gcc -funroll-loops -m64 -march=barcelona -Os -fomit-frame-pointer x64
gcc -funroll-loops -m64 -march=k8 -O2 -fomit-frame-pointer x64
gcc -funroll-loops -m64 -march=k8 -O3 -fomit-frame-pointer x64
gcc -funroll-loops -m64 -march=k8 -O -fomit-frame-pointer x64
gcc -funroll-loops -m64 -march=k8 -Os -fomit-frame-pointer x64
gcc -funroll-loops -m64 -march=nocona -O2 -fomit-frame-pointer x64
gcc -funroll-loops -m64 -march=nocona -O3 -fomit-frame-pointer x64
gcc -funroll-loops -m64 -march=nocona -O -fomit-frame-pointer x64
gcc -funroll-loops -m64 -march=nocona -Os -fomit-frame-pointer x64
gcc -funroll-loops -march=barcelona -O2 -fomit-frame-pointer x64
gcc -funroll-loops -march=barcelona -O3 -fomit-frame-pointer x64
gcc -funroll-loops -march=barcelona -O -fomit-frame-pointer x64
gcc -funroll-loops -march=barcelona -Os -fomit-frame-pointer x64
gcc -funroll-loops -march=k8 -O2 -fomit-frame-pointer x64
gcc -funroll-loops -march=k8 -O3 -fomit-frame-pointer x64
gcc -funroll-loops -march=k8 -O -fomit-frame-pointer x64
gcc -funroll-loops -march=k8 -Os -fomit-frame-pointer x64
gcc -funroll-loops -march=nocona -O2 -fomit-frame-pointer x64
gcc -funroll-loops -march=nocona -O3 -fomit-frame-pointer x64
gcc -funroll-loops -march=nocona -O -fomit-frame-pointer x64
gcc -funroll-loops -march=nocona -Os -fomit-frame-pointer x64
gcc -m64 -O2 -fomit-frame-pointer x64
gcc -m64 -O3 -fomit-frame-pointer x64
gcc -m64 -O -fomit-frame-pointer x64
gcc -m64 -Os -fomit-frame-pointer x64
gcc -m64 -march=core2 -O2 -fomit-frame-pointer x64
gcc -m64 -march=core2 -O3 -fomit-frame-pointer x64
gcc -m64 -march=core2 -O -fomit-frame-pointer x64
gcc -m64 -march=core2 -Os -fomit-frame-pointer x64
gcc -m64 -march=core2 -msse4.1 -O2 -fomit-frame-pointer x64
gcc -m64 -march=core2 -msse4.1 -O3 -fomit-frame-pointer x64
gcc -m64 -march=core2 -msse4.1 -O -fomit-frame-pointer x64
gcc -m64 -march=core2 -msse4.1 -Os -fomit-frame-pointer x64
gcc -m64 -march=core2 -msse4 -O2 -fomit-frame-pointer x64
gcc -m64 -march=core2 -msse4 -O3 -fomit-frame-pointer x64
gcc -m64 -march=core2 -msse4 -O -fomit-frame-pointer x64
gcc -m64 -march=core2 -msse4 -Os -fomit-frame-pointer x64
gcc -m64 -march=k8 -O2 -fomit-frame-pointer x64
gcc -m64 -march=k8 -O3 -fomit-frame-pointer x64
gcc -m64 -march=k8 -O -fomit-frame-pointer x64
gcc -m64 -march=k8 -Os -fomit-frame-pointer x64
gcc -m64 -march=native -mtune=native -O2 -fomit-frame-pointer x64
gcc -m64 -march=native -mtune=native -O3 -fomit-frame-pointer x64
gcc -m64 -march=native -mtune=native -O -fomit-frame-pointer x64
gcc -m64 -march=native -mtune=native -Os -fomit-frame-pointer x64
gcc -m64 -march=nocona -O2 -fomit-frame-pointer x64
gcc -m64 -march=nocona -O3 -fomit-frame-pointer x64
gcc -m64 -march=nocona -O -fomit-frame-pointer x64
gcc -m64 -march=nocona -Os -fomit-frame-pointer x64
gcc -march=barcelona -O2 -fomit-frame-pointer x64
gcc -march=barcelona -O3 -fomit-frame-pointer x64
gcc -march=barcelona -O -fomit-frame-pointer x64
gcc -march=barcelona -Os -fomit-frame-pointer x64
gcc -march=k8 -O2 -fomit-frame-pointer x64
gcc -march=k8 -O3 -fomit-frame-pointer x64
gcc -march=k8 -O -fomit-frame-pointer x64
gcc -march=k8 -Os -fomit-frame-pointer x64
gcc -march=native -mtune=native -O2 -fomit-frame-pointer -fwrapv x64
gcc -march=native -mtune=native -O3 -fomit-frame-pointer -fwrapv x64
gcc -march=native -mtune=native -O -fomit-frame-pointer -fwrapv x64
gcc -march=native -mtune=native -Os -fomit-frame-pointer -fwrapv x64
gcc -march=nocona -O2 -fomit-frame-pointer x64
gcc -march=nocona -O3 -fomit-frame-pointer x64
gcc -march=nocona -O -fomit-frame-pointer x64
gcc -march=nocona -Os -fomit-frame-pointer x64

Compiler output

Implementation: crypto_hash/skein256256/x64
Compiler: gcc -m64 -march=barcelona -O2 -fomit-frame-pointer
skein_block_x64.S: skein_block_x64.S:336:61: warning: trigraph ??) ignored, use -trigraphs to enable
skein_block_x64.S: skein_block_x64.S:336:61: warning: trigraph ??) ignored, use -trigraphs to enable

Number of similar (compiler,implementation) pairs: 4, namely:
CompilerImplementations
gcc -m64 -march=barcelona -O2 -fomit-frame-pointer x64
gcc -m64 -march=barcelona -O3 -fomit-frame-pointer x64
gcc -m64 -march=barcelona -O -fomit-frame-pointer x64
gcc -m64 -march=barcelona -Os -fomit-frame-pointer x64