Implementation notes: amd64, phenom, crypto_hash/skein256256

Computer: phenom
Architecture: amd64
CPU ID: AuthenticAMD-00100fa0-178bfbff
SUPERCOP version: 20120812
Operation: crypto_hash
Primitive: skein256256

Time	Implementation	Compiler	Benchmark date	SUPERCOP version
8344	`opt`	`gcc -funroll-loops -m64 -march=nocona -O2 -fomit-frame-pointer`	20120523	20120521
8356	`opt`	`gcc -funroll-loops -march=nocona -O2 -fomit-frame-pointer`	20120523	20120521
8406	`opt`	`gcc -m64 -O -fomit-frame-pointer`	20120523	20120521
8413	`opt`	`gcc -O -fomit-frame-pointer`	20120523	20120521
8416	`opt`	`gcc -fno-schedule-insns -O -fomit-frame-pointer`	20120523	20120521
8531	`opt`	`gcc -funroll-loops -march=nocona -O -fomit-frame-pointer`	20120523	20120521
8859	`opt`	`gcc -funroll-loops -m64 -march=barcelona -O2 -fomit-frame-pointer`	20120523	20120521
8957	`opt`	`gcc -funroll-loops -fno-schedule-insns -O2 -fomit-frame-pointer`	20120523	20120521
8960	`opt`	`gcc -funroll-loops -O2 -fomit-frame-pointer`	20120523	20120521
8996	`opt`	`gcc -funroll-loops -march=k8 -O3 -fomit-frame-pointer`	20120523	20120521
9001	`opt`	`gcc -m64 -march=k8 -O2 -fomit-frame-pointer`	20120523	20120521
9002	`opt`	`gcc -fno-schedule-insns -O3 -fomit-frame-pointer`	20120523	20120521
9005	`opt`	`gcc -O2 -fomit-frame-pointer`	20120523	20120521
9744	`x64`	`gcc -funroll-loops -m64 -march=k8 -O2 -fomit-frame-pointer`	20120523	20120521
9755	`x64`	`gcc -funroll-loops -march=k8 -O2 -fomit-frame-pointer`	20120523	20120521
9773	`x64`	`gcc -funroll-loops -m64 -march=barcelona -O3 -fomit-frame-pointer`	20120523	20120521
9782	`x64`	`gcc -m64 -march=nocona -O2 -fomit-frame-pointer`	20120523	20120521
9784	`x64`	`gcc -funroll-loops -march=k8 -O3 -fomit-frame-pointer`	20120523	20120521
9790	`x64`	`gcc -m64 -march=nocona -O3 -fomit-frame-pointer`	20120523	20120521
9791	`x64`	`gcc -funroll-loops -m64 -O -fomit-frame-pointer`	20120523	20120521
9792	`x64`	`gcc -m64 -march=nocona -O -fomit-frame-pointer`	20120523	20120521
9793	`x64`	`gcc -funroll-loops -O3 -fomit-frame-pointer`	20120523	20120521
9793	`x64`	`gcc -funroll-loops -O -fomit-frame-pointer`	20120523	20120521
9799	`x64`	`gcc -funroll-loops -O2 -fomit-frame-pointer`	20120523	20120521
9799	`x64`	`gcc -m64 -O2 -fomit-frame-pointer`	20120523	20120521
9811	`x64`	`gcc -funroll-loops -m64 -march=nocona -O2 -fomit-frame-pointer`	20120523	20120521
9820	`x64`	`gcc -funroll-loops`	20120523	20120521
9824	`x64`	`gcc -funroll-loops -march=barcelona -O -fomit-frame-pointer`	20120523	20120521
9825	`opt`	`gcc -march=nocona -O2 -fomit-frame-pointer`	20120523	20120521
9833	`opt`	`gcc -funroll-loops -march=nocona -O3 -fomit-frame-pointer`	20120523	20120521
9834	`opt`	`gcc -funroll-loops -m64 -march=nocona -O3 -fomit-frame-pointer`	20120523	20120521
9837	`opt`	`gcc -m64 -march=nocona -O2 -fomit-frame-pointer`	20120523	20120521
9842	`opt`	`gcc -march=nocona -O3 -fomit-frame-pointer`	20120523	20120521
9849	`opt`	`gcc -m64 -march=nocona -O3 -fomit-frame-pointer`	20120523	20120521
9864	`x64`	`gcc -m64 -march=k8 -Os -fomit-frame-pointer`	20120523	20120521
9881	`x64`	`gcc -funroll-loops -Os -fomit-frame-pointer`	20120523	20120521
9881	`x64`	`gcc -funroll-loops -m64 -Os -fomit-frame-pointer`	20120523	20120521
9883	`x64`	`gcc -m64 -Os -fomit-frame-pointer`	20120523	20120521
9898	`opt`	`gcc -funroll-loops -O -fomit-frame-pointer`	20120523	20120521
9898	`opt`	`gcc -march=k8 -O -fomit-frame-pointer`	20120523	20120521
9900	`opt`	`gcc -funroll-loops -m64 -O -fomit-frame-pointer`	20120523	20120521
9900	`opt`	`gcc -m64 -march=core2 -msse4 -O -fomit-frame-pointer`	20120523	20120521
9901	`opt`	`gcc -m64 -march=core2 -O -fomit-frame-pointer`	20120523	20120521
9903	`opt`	`gcc -m64 -march=k8 -O -fomit-frame-pointer`	20120523	20120521
9907	`opt`	`gcc -m64 -march=core2 -msse4.1 -O -fomit-frame-pointer`	20120523	20120521
9907	`opt`	`gcc -m64 -march=corei7 -O -fomit-frame-pointer`	20120523	20120521
9909	`opt`	`gcc -funroll-loops -fno-schedule-insns -O -fomit-frame-pointer`	20120523	20120521
9940	`opt`	`gcc -m64 -march=barcelona -O -fomit-frame-pointer`	20120523	20120521
9942	`opt`	`gcc -march=barcelona -O -fomit-frame-pointer`	20120523	20120521
9947	`opt`	`gcc -march=nocona -O -fomit-frame-pointer`	20120523	20120521
9948	`opt`	`gcc -m64 -march=native -mtune=native -O -fomit-frame-pointer`	20120523	20120521
9954	`opt`	`gcc -m64 -march=nocona -O -fomit-frame-pointer`	20120523	20120521
9958	`opt`	`gcc -funroll-loops -march=barcelona -O -fomit-frame-pointer`	20120523	20120521
9958	`opt`	`gcc -funroll-loops -march=k8 -O -fomit-frame-pointer`	20120523	20120521
9962	`opt`	`gcc -funroll-loops -m64 -march=k8 -O -fomit-frame-pointer`	20120523	20120521
9974	`opt`	`gcc -funroll-loops -m64 -march=barcelona -O -fomit-frame-pointer`	20120523	20120521
10059	`opt`	`gcc -funroll-loops -m64 -march=nocona -O -fomit-frame-pointer`	20120523	20120521
10105	`opt`	`gcc -march=k8 -Os -fomit-frame-pointer`	20120523	20120521
10116	`opt`	`gcc -m64 -Os -fomit-frame-pointer`	20120523	20120521
10144	`opt`	`gcc -m64 -march=core2 -Os -fomit-frame-pointer`	20120523	20120521
10412	`opt`	`gcc -funroll-loops -march=barcelona -O2 -fomit-frame-pointer`	20120523	20120521
10441	`opt`	`gcc -funroll-loops -m64 -march=barcelona -O3 -fomit-frame-pointer`	20120523	20120521
10443	`opt`	`gcc -funroll-loops -march=barcelona -O3 -fomit-frame-pointer`	20120523	20120521
10455	`opt`	`gcc -m64 -march=barcelona -O2 -fomit-frame-pointer`	20120523	20120521
10458	`opt`	`gcc -march=barcelona -O3 -fomit-frame-pointer`	20120523	20120521
10459	`opt`	`gcc -m64 -march=native -mtune=native -O3 -fomit-frame-pointer`	20120523	20120521
10460	`opt`	`gcc -m64 -march=barcelona -O3 -fomit-frame-pointer`	20120523	20120521
10460	`opt`	`gcc -march=barcelona -O2 -fomit-frame-pointer`	20120523	20120521
10461	`opt`	`gcc -m64 -march=native -mtune=native -O2 -fomit-frame-pointer`	20120523	20120521
10555	`opt`	`gcc -funroll-loops -fno-schedule-insns -O3 -fomit-frame-pointer`	20120523	20120521
10555	`opt`	`gcc -funroll-loops -m64 -O3 -fomit-frame-pointer`	20120523	20120521
10555	`opt`	`gcc -m64 -march=core2 -O3 -fomit-frame-pointer`	20120523	20120521
10556	`opt`	`gcc -funroll-loops -march=k8 -O2 -fomit-frame-pointer`	20120523	20120521
10558	`opt`	`gcc -funroll-loops -m64 -O2 -fomit-frame-pointer`	20120523	20120521
10559	`opt`	`gcc -m64 -march=core2 -O2 -fomit-frame-pointer`	20120523	20120521
10560	`opt`	`gcc -funroll-loops -O3 -fomit-frame-pointer`	20120523	20120521
10560	`opt`	`gcc -m64 -march=corei7 -O2 -fomit-frame-pointer`	20120523	20120521
10567	`opt`	`gcc -m64 -march=core2 -msse4 -O2 -fomit-frame-pointer`	20120523	20120521
10570	`opt`	`gcc -m64 -march=core2 -msse4.1 -O2 -fomit-frame-pointer`	20120523	20120521
10584	`opt`	`gcc -funroll-loops -m64 -march=k8 -O2 -fomit-frame-pointer`	20120523	20120521
10592	`opt`	`gcc -funroll-loops -m64 -march=k8 -O3 -fomit-frame-pointer`	20120523	20120521
10600	`opt`	`gcc -m64 -O3 -fomit-frame-pointer`	20120523	20120521
10603	`opt`	`gcc -O3 -fomit-frame-pointer`	20120523	20120521
10603	`opt`	`gcc -fno-schedule-insns -O2 -fomit-frame-pointer`	20120523	20120521
10603	`opt`	`gcc -m64 -O2 -fomit-frame-pointer`	20120523	20120521
10605	`opt`	`gcc -march=k8 -O2 -fomit-frame-pointer`	20120523	20120521
10608	`opt`	`gcc -march=k8 -O3 -fomit-frame-pointer`	20120523	20120521
10609	`opt`	`gcc -m64 -march=k8 -O3 -fomit-frame-pointer`	20120523	20120521
11478	`x64`	`gcc -m64 -march=k8 -O3 -fomit-frame-pointer`	20120523	20120521
11480	`x64`	`gcc -funroll-loops -march=barcelona -O2 -fomit-frame-pointer`	20120523	20120521
11482	`x64`	`gcc -march=barcelona -O2 -fomit-frame-pointer`	20120523	20120521
11483	`x64`	`gcc -march=k8 -O2 -fomit-frame-pointer`	20120523	20120521
11487	`x64`	`gcc -m64 -march=barcelona -O3 -fomit-frame-pointer`	20120523	20120521
11487	`x64`	`gcc -march=k8 -O3 -fomit-frame-pointer`	20120523	20120521
11491	`x64`	`gcc -funroll-loops -m64 -march=barcelona -O2 -fomit-frame-pointer`	20120523	20120521
11491	`x64`	`gcc -m64 -march=native -mtune=native -O3 -fomit-frame-pointer`	20120523	20120521
11493	`x64`	`gcc -march=barcelona -O3 -fomit-frame-pointer`	20120523	20120521
11494	`x64`	`gcc -m64 -march=barcelona -O2 -fomit-frame-pointer`	20120523	20120521
11494	`x64`	`gcc -m64 -march=native -mtune=native -O2 -fomit-frame-pointer`	20120523	20120521
11498	`x64`	`gcc -m64 -march=k8 -O2 -fomit-frame-pointer`	20120523	20120521
11520	`x64`	`gcc -funroll-loops -m64 -march=k8 -O3 -fomit-frame-pointer`	20120523	20120521
11522	`x64`	`gcc -funroll-loops -march=barcelona -O3 -fomit-frame-pointer`	20120523	20120521
11526	`x64`	`gcc -funroll-loops -m64 -march=nocona -O3 -fomit-frame-pointer`	20120523	20120521
11527	`x64`	`gcc -funroll-loops -fno-schedule-insns -O3 -fomit-frame-pointer`	20120523	20120521
11527	`x64`	`gcc -funroll-loops -march=nocona -O3 -fomit-frame-pointer`	20120523	20120521
11527	`x64`	`gcc -march=nocona -O2 -fomit-frame-pointer`	20120523	20120521
11528	`x64`	`gcc -O3 -fomit-frame-pointer`	20120523	20120521
11528	`x64`	`gcc -fno-schedule-insns -O -fomit-frame-pointer`	20120523	20120521
11528	`x64`	`gcc -funroll-loops -fno-schedule-insns -O2 -fomit-frame-pointer`	20120523	20120521
11528	`x64`	`gcc -march=k8 -O -fomit-frame-pointer`	20120523	20120521
11529	`x64`	`gcc -O2 -fomit-frame-pointer`	20120523	20120521
11529	`x64`	`gcc -funroll-loops -m64 -march=k8 -O -fomit-frame-pointer`	20120523	20120521
11529	`x64`	`gcc -funroll-loops -march=k8 -O -fomit-frame-pointer`	20120523	20120521
11531	`x64`	`gcc -fno-schedule-insns -O3 -fomit-frame-pointer`	20120523	20120521
11531	`x64`	`gcc -m64 -O -fomit-frame-pointer`	20120523	20120521
11531	`x64`	`gcc -m64 -march=core2 -O3 -fomit-frame-pointer`	20120523	20120521
11531	`x64`	`gcc -m64 -march=core2 -msse4 -O2 -fomit-frame-pointer`	20120523	20120521
11531	`x64`	`gcc -m64 -march=corei7 -O2 -fomit-frame-pointer`	20120523	20120521
11532	`x64`	`gcc -funroll-loops -m64 -O3 -fomit-frame-pointer`	20120523	20120521
11532	`x64`	`gcc -m64 -march=barcelona -O -fomit-frame-pointer`	20120523	20120521
11532	`opt`	`gcc -m64 -march=nocona -Os -fomit-frame-pointer`	20120523	20120521
11532	`x64`	`gcc -march=barcelona -O -fomit-frame-pointer`	20120523	20120521
11533	`x64`	`gcc -m64 -march=core2 -msse4 -O -fomit-frame-pointer`	20120523	20120521
11534	`x64`	`gcc -m64 -O3 -fomit-frame-pointer`	20120523	20120521
11537	`x64`	`gcc -funroll-loops -march=nocona -O2 -fomit-frame-pointer`	20120523	20120521
11538	`x64`	`gcc -m64 -march=core2 -msse4.1 -O2 -fomit-frame-pointer`	20120523	20120521
11540	`x64`	`gcc -fno-schedule-insns -O2 -fomit-frame-pointer`	20120523	20120521
11540	`x64`	`gcc -funroll-loops -m64 -O2 -fomit-frame-pointer`	20120523	20120521
11540	`x64`	`gcc -m64 -march=core2 -O -fomit-frame-pointer`	20120523	20120521
11540	`x64`	`gcc -m64 -march=core2 -msse4.1 -O -fomit-frame-pointer`	20120523	20120521
11540	`x64`	`gcc -m64 -march=corei7 -O -fomit-frame-pointer`	20120523	20120521
11542	`x64`	`gcc -O -fomit-frame-pointer`	20120523	20120521
11542	`x64`	`gcc -funroll-loops -fno-schedule-insns -O -fomit-frame-pointer`	20120523	20120521
11542	`opt`	`gcc -march=nocona -Os -fomit-frame-pointer`	20120523	20120521
11543	`x64`	`gcc -m64 -march=core2 -O2 -fomit-frame-pointer`	20120523	20120521
11543	`x64`	`gcc -march=nocona -O -fomit-frame-pointer`	20120523	20120521
11544	`x64`	`gcc -march=nocona -O3 -fomit-frame-pointer`	20120523	20120521
11545	`x64`	`gcc -m64 -march=native -mtune=native -O -fomit-frame-pointer`	20120523	20120521
11546	`x64`	`gcc -m64 -march=k8 -O -fomit-frame-pointer`	20120523	20120521
11550	`x64`	`gcc -funroll-loops -m64 -march=nocona -O -fomit-frame-pointer`	20120523	20120521
11552	`opt`	`gcc -funroll-loops -m64 -march=nocona -Os -fomit-frame-pointer`	20120523	20120521
11554	`x64`	`gcc`	20120523	20120521
11556	`x64`	`gcc -funroll-loops -march=nocona -O -fomit-frame-pointer`	20120523	20120521
11560	`opt`	`gcc -funroll-loops -march=nocona -Os -fomit-frame-pointer`	20120523	20120521
11564	`x64`	`cc`	20120523	20120521
11564	`x64`	`gcc -funroll-loops -m64 -march=barcelona -O -fomit-frame-pointer`	20120523	20120521
11599	`x64`	`gcc -m64 -march=core2 -msse4.1 -Os -fomit-frame-pointer`	20120523	20120521
11599	`x64`	`gcc -m64 -march=corei7 -Os -fomit-frame-pointer`	20120523	20120521
11599	`x64`	`gcc -march=k8 -Os -fomit-frame-pointer`	20120523	20120521
11599	`x64`	`gcc -march=nocona -Os -fomit-frame-pointer`	20120523	20120521
11601	`x64`	`gcc -funroll-loops -m64 -march=barcelona -Os -fomit-frame-pointer`	20120523	20120521
11601	`x64`	`gcc -m64 -march=native -mtune=native -Os -fomit-frame-pointer`	20120523	20120521
11602	`x64`	`gcc -m64 -march=barcelona -Os -fomit-frame-pointer`	20120523	20120521
11603	`x64`	`gcc -funroll-loops -march=k8 -Os -fomit-frame-pointer`	20120523	20120521
11603	`x64`	`gcc -m64 -march=core2 -Os -fomit-frame-pointer`	20120523	20120521
11606	`x64`	`gcc -funroll-loops -fno-schedule-insns -Os -fomit-frame-pointer`	20120523	20120521
11611	`x64`	`gcc -m64 -march=core2 -msse4 -Os -fomit-frame-pointer`	20120523	20120521
11611	`x64`	`gcc -m64 -march=nocona -Os -fomit-frame-pointer`	20120523	20120521
11615	`x64`	`gcc -funroll-loops -m64 -march=nocona -Os -fomit-frame-pointer`	20120523	20120521
11615	`x64`	`gcc -funroll-loops -march=nocona -Os -fomit-frame-pointer`	20120523	20120521
11617	`x64`	`gcc -funroll-loops -march=barcelona -Os -fomit-frame-pointer`	20120523	20120521
11618	`x64`	`gcc -funroll-loops -m64 -march=k8 -Os -fomit-frame-pointer`	20120523	20120521
11620	`x64`	`gcc -march=barcelona -Os -fomit-frame-pointer`	20120523	20120521
11626	`x64`	`gcc -Os -fomit-frame-pointer`	20120523	20120521
11630	`x64`	`gcc -fno-schedule-insns -Os -fomit-frame-pointer`	20120523	20120521
11715	`opt`	`gcc -funroll-loops -march=barcelona -Os -fomit-frame-pointer`	20120523	20120521
11722	`opt`	`gcc -funroll-loops -m64 -march=barcelona -Os -fomit-frame-pointer`	20120523	20120521
11898	`opt`	`gcc -m64 -march=native -mtune=native -Os -fomit-frame-pointer`	20120523	20120521
11903	`opt`	`gcc -fno-schedule-insns -Os -fomit-frame-pointer`	20120523	20120521
11917	`opt`	`gcc -Os -fomit-frame-pointer`	20120523	20120521
11917	`opt`	`gcc -m64 -march=barcelona -Os -fomit-frame-pointer`	20120523	20120521
11917	`opt`	`gcc -march=barcelona -Os -fomit-frame-pointer`	20120523	20120521
11925	`opt`	`gcc -m64 -march=k8 -Os -fomit-frame-pointer`	20120523	20120521
11953	`opt`	`gcc -m64 -march=core2 -msse4 -Os -fomit-frame-pointer`	20120523	20120521
11953	`opt`	`gcc -m64 -march=corei7 -Os -fomit-frame-pointer`	20120523	20120521
11972	`opt`	`gcc -m64 -march=core2 -msse4.1 -Os -fomit-frame-pointer`	20120523	20120521
12009	`opt`	`gcc -funroll-loops -Os -fomit-frame-pointer`	20120523	20120521
12009	`opt`	`gcc -funroll-loops -fno-schedule-insns -Os -fomit-frame-pointer`	20120523	20120521
12010	`opt`	`gcc -funroll-loops -march=k8 -Os -fomit-frame-pointer`	20120523	20120521
12011	`opt`	`gcc -funroll-loops -m64 -march=k8 -Os -fomit-frame-pointer`	20120523	20120521
12033	`opt`	`gcc -funroll-loops -m64 -Os -fomit-frame-pointer`	20120523	20120521
66168	`opt`	`cc`	20120523	20120521
66168	`opt`	`gcc`	20120523	20120521
77978	`opt`	`gcc -funroll-loops`	20120523	20120521

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 [-Wtrigraphs]

Number of similar (compiler,implementation) pairs: 88, namely:

Compiler	Implementations
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 -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 -O -fomit-frame-pointer	x64
gcc -m64 -march=core2 -msse4 -Os -fomit-frame-pointer	x64
gcc -m64 -march=corei7 -O2 -fomit-frame-pointer	x64
gcc -m64 -march=corei7 -O -fomit-frame-pointer	x64
gcc -m64 -march=corei7 -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=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 [-Wtrigraphs]
skein_block_x64.S: skein_block_x64.S:336:61: warning: trigraph ??) ignored, use -trigraphs to enable [-Wtrigraphs]

Number of similar (compiler,implementation) pairs: 4, namely:

Compiler	Implementations
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