Implementation notes: amd64, ranger, crypto_hash/skein256256

Computer: ranger
Architecture: amd64
CPU ID: AuthenticAMD-00100f23-178bfbff
SUPERCOP version: 20120310
Operation: crypto_hash
Primitive: skein256256

Time	Implementation	Compiler	Benchmark date	SUPERCOP version
10016	`opt`	`gcc -march=k8 -O -fomit-frame-pointer`	20120120	20120120
10027	`opt`	`gcc -m64 -march=core2 -msse4.1 -O -fomit-frame-pointer`	20120120	20120120
10032	`opt`	`gcc -funroll-loops -m64 -march=barcelona -O -fomit-frame-pointer`	20120120	20120120
10034	`opt`	`gcc -funroll-loops -m64 -O -fomit-frame-pointer`	20120120	20120120
10036	`opt`	`gcc -m64 -march=k8 -O -fomit-frame-pointer`	20120120	20120120
10037	`opt`	`gcc -m64 -march=native -mtune=native -O -fomit-frame-pointer`	20120120	20120120
10038	`opt`	`gcc -funroll-loops -fno-schedule-insns -O -fomit-frame-pointer`	20120120	20120120
10038	`opt`	`gcc -march=barcelona -O -fomit-frame-pointer`	20120120	20120120
10040	`opt`	`gcc -funroll-loops -m64 -march=k8 -O -fomit-frame-pointer`	20120120	20120120
10043	`opt`	`gcc -m64 -march=nocona -O -fomit-frame-pointer`	20120120	20120120
10044	`opt`	`gcc -march=nocona -O -fomit-frame-pointer`	20120120	20120120
10048	`opt`	`gcc -O -fomit-frame-pointer`	20120120	20120120
10048	`opt`	`gcc -funroll-loops -march=k8 -O -fomit-frame-pointer`	20120120	20120120
10048	`opt`	`gcc -m64 -O -fomit-frame-pointer`	20120120	20120120
10049	`opt`	`gcc -funroll-loops -m64 -march=nocona -O -fomit-frame-pointer`	20120120	20120120
10049	`opt`	`gcc -m64 -march=barcelona -O -fomit-frame-pointer`	20120120	20120120
10049	`opt`	`gcc -m64 -march=core2 -O -fomit-frame-pointer`	20120120	20120120
10056	`opt`	`gcc -funroll-loops -march=nocona -O -fomit-frame-pointer`	20120120	20120120
10057	`opt`	`gcc -m64 -march=core2 -msse4 -O -fomit-frame-pointer`	20120120	20120120
10059	`opt`	`gcc -funroll-loops -march=barcelona -O -fomit-frame-pointer`	20120120	20120120
10060	`opt`	`gcc -fno-schedule-insns -O -fomit-frame-pointer`	20120120	20120120
10060	`opt`	`gcc -funroll-loops -O -fomit-frame-pointer`	20120120	20120120
11480	`x64`	`gcc -m64 -march=native -mtune=native -O3 -fomit-frame-pointer`	20120120	20120120
11480	`x64`	`gcc -march=barcelona -O3 -fomit-frame-pointer`	20120120	20120120
11481	`x64`	`gcc -m64 -march=barcelona -O3 -fomit-frame-pointer`	20120120	20120120
11483	`x64`	`gcc -m64 -march=k8 -O3 -fomit-frame-pointer`	20120120	20120120
11484	`x64`	`gcc -funroll-loops -m64 -march=k8 -O2 -fomit-frame-pointer`	20120120	20120120
11484	`x64`	`gcc -m64 -march=k8 -O2 -fomit-frame-pointer`	20120120	20120120
11487	`opt`	`gcc -funroll-loops -march=barcelona -Os -fomit-frame-pointer`	20120120	20120120
11492	`x64`	`gcc -funroll-loops -march=k8 -O2 -fomit-frame-pointer`	20120120	20120120
11496	`x64`	`gcc -march=k8 -O3 -fomit-frame-pointer`	20120120	20120120
11500	`x64`	`gcc -funroll-loops -m64 -march=barcelona -O2 -fomit-frame-pointer`	20120120	20120120
11504	`x64`	`gcc -funroll-loops -march=barcelona -O3 -fomit-frame-pointer`	20120120	20120120
11505	`x64`	`gcc -march=barcelona -O2 -fomit-frame-pointer`	20120120	20120120
11506	`x64`	`gcc -funroll-loops -march=barcelona -O2 -fomit-frame-pointer`	20120120	20120120
11506	`x64`	`gcc -m64 -march=barcelona -O2 -fomit-frame-pointer`	20120120	20120120
11511	`x64`	`gcc -m64 -march=native -mtune=native -O2 -fomit-frame-pointer`	20120120	20120120
11514	`x64`	`gcc -funroll-loops -m64 -march=barcelona -O3 -fomit-frame-pointer`	20120120	20120120
11517	`x64`	`gcc -funroll-loops -march=k8 -O3 -fomit-frame-pointer`	20120120	20120120
11517	`x64`	`gcc -march=k8 -O2 -fomit-frame-pointer`	20120120	20120120
11521	`x64`	`gcc -funroll-loops -m64 -march=k8 -O3 -fomit-frame-pointer`	20120120	20120120
11528	`x64`	`gcc -march=nocona -O2 -fomit-frame-pointer`	20120120	20120120
11529	`x64`	`gcc -m64 -march=core2 -O3 -fomit-frame-pointer`	20120120	20120120
11531	`x64`	`gcc -O3 -fomit-frame-pointer`	20120120	20120120
11531	`x64`	`gcc -fno-schedule-insns -O2 -fomit-frame-pointer`	20120120	20120120
11531	`x64`	`gcc -m64 -O2 -fomit-frame-pointer`	20120120	20120120
11531	`x64`	`gcc -m64 -O3 -fomit-frame-pointer`	20120120	20120120
11532	`x64`	`gcc -fno-schedule-insns -O3 -fomit-frame-pointer`	20120120	20120120
11532	`x64`	`gcc -m64 -march=core2 -msse4.1 -O2 -fomit-frame-pointer`	20120120	20120120
11535	`x64`	`gcc -O -fomit-frame-pointer`	20120120	20120120
11535	`opt`	`gcc -funroll-loops -m64 -march=barcelona -Os -fomit-frame-pointer`	20120120	20120120
11535	`x64`	`gcc -m64 -march=barcelona -O -fomit-frame-pointer`	20120120	20120120
11537	`x64`	`gcc -funroll-loops -march=nocona -O2 -fomit-frame-pointer`	20120120	20120120
11537	`x64`	`gcc -m64 -march=core2 -msse4 -O -fomit-frame-pointer`	20120120	20120120
11537	`x64`	`gcc -m64 -march=nocona -O -fomit-frame-pointer`	20120120	20120120
11538	`x64`	`gcc -m64 -march=core2 -O2 -fomit-frame-pointer`	20120120	20120120
11539	`x64`	`gcc -fno-schedule-insns -O -fomit-frame-pointer`	20120120	20120120
11539	`x64`	`gcc -funroll-loops -march=nocona -O -fomit-frame-pointer`	20120120	20120120
11539	`x64`	`gcc -m64 -O -fomit-frame-pointer`	20120120	20120120
11539	`x64`	`gcc -m64 -march=core2 -msse4 -O2 -fomit-frame-pointer`	20120120	20120120
11540	`x64`	`gcc -funroll-loops -m64 -march=k8 -O -fomit-frame-pointer`	20120120	20120120
11540	`x64`	`gcc -funroll-loops -m64 -march=nocona -O -fomit-frame-pointer`	20120120	20120120
11543	`x64`	`gcc -m64 -march=core2 -msse4.1 -O -fomit-frame-pointer`	20120120	20120120
11543	`x64`	`gcc -m64 -march=k8 -O -fomit-frame-pointer`	20120120	20120120
11544	`x64`	`gcc -march=barcelona -O -fomit-frame-pointer`	20120120	20120120
11546	`x64`	`gcc -m64 -march=core2 -O -fomit-frame-pointer`	20120120	20120120
11547	`x64`	`gcc -funroll-loops -march=k8 -O -fomit-frame-pointer`	20120120	20120120
11549	`x64`	`gcc -funroll-loops -O2 -fomit-frame-pointer`	20120120	20120120
11549	`x64`	`gcc -funroll-loops -m64 -O3 -fomit-frame-pointer`	20120120	20120120
11550	`x64`	`gcc -funroll-loops -m64 -O2 -fomit-frame-pointer`	20120120	20120120
11550	`x64`	`gcc -m64 -march=nocona -O3 -fomit-frame-pointer`	20120120	20120120
11552	`x64`	`gcc -funroll-loops -fno-schedule-insns -O3 -fomit-frame-pointer`	20120120	20120120
11552	`x64`	`gcc -funroll-loops -m64 -march=nocona -O3 -fomit-frame-pointer`	20120120	20120120
11552	`x64`	`gcc -funroll-loops -march=nocona -O3 -fomit-frame-pointer`	20120120	20120120
11554	`x64`	`gcc -funroll-loops -O3 -fomit-frame-pointer`	20120120	20120120
11554	`x64`	`gcc -m64 -march=core2 -msse4 -O3 -fomit-frame-pointer`	20120120	20120120
11554	`x64`	`gcc -march=nocona -O3 -fomit-frame-pointer`	20120120	20120120
11555	`x64`	`gcc -funroll-loops -m64 -march=nocona -O2 -fomit-frame-pointer`	20120120	20120120
11555	`x64`	`gcc -m64 -march=native -mtune=native -O -fomit-frame-pointer`	20120120	20120120
11557	`x64`	`gcc -O2 -fomit-frame-pointer`	20120120	20120120
11557	`x64`	`gcc -funroll-loops -m64 -march=barcelona -O -fomit-frame-pointer`	20120120	20120120
11558	`x64`	`gcc -funroll-loops -m64 -O -fomit-frame-pointer`	20120120	20120120
11559	`x64`	`gcc -march=k8 -O -fomit-frame-pointer`	20120120	20120120
11560	`x64`	`gcc -funroll-loops -fno-schedule-insns -O2 -fomit-frame-pointer`	20120120	20120120
11560	`x64`	`gcc -funroll-loops -fno-schedule-insns -O -fomit-frame-pointer`	20120120	20120120
11562	`x64`	`gcc -m64 -march=nocona -O2 -fomit-frame-pointer`	20120120	20120120
11565	`x64`	`gcc -march=nocona -O -fomit-frame-pointer`	20120120	20120120
11566	`x64`	`gcc -funroll-loops -O -fomit-frame-pointer`	20120120	20120120
11568	`x64`	`gcc -m64 -march=core2 -msse4.1 -O3 -fomit-frame-pointer`	20120120	20120120
11569	`x64`	`gcc -funroll-loops -march=barcelona -O -fomit-frame-pointer`	20120120	20120120
11582	`x64`	`gcc`	20120120	20120120
11589	`x64`	`gcc -funroll-loops`	20120120	20120120
11592	`x64`	`cc`	20120120	20120120
11599	`opt`	`gcc -march=nocona -Os -fomit-frame-pointer`	20120120	20120120
11601	`opt`	`gcc -m64 -march=nocona -Os -fomit-frame-pointer`	20120120	20120120
11609	`x64`	`gcc -funroll-loops -m64 -march=nocona -Os -fomit-frame-pointer`	20120120	20120120
11609	`x64`	`gcc -m64 -march=core2 -msse4.1 -Os -fomit-frame-pointer`	20120120	20120120
11612	`x64`	`gcc -Os -fomit-frame-pointer`	20120120	20120120
11612	`x64`	`gcc -funroll-loops -fno-schedule-insns -Os -fomit-frame-pointer`	20120120	20120120
11612	`x64`	`gcc -m64 -Os -fomit-frame-pointer`	20120120	20120120
11613	`x64`	`gcc -fno-schedule-insns -Os -fomit-frame-pointer`	20120120	20120120
11613	`x64`	`gcc -funroll-loops -march=nocona -Os -fomit-frame-pointer`	20120120	20120120
11613	`x64`	`gcc -march=k8 -Os -fomit-frame-pointer`	20120120	20120120
11614	`x64`	`gcc -m64 -march=native -mtune=native -Os -fomit-frame-pointer`	20120120	20120120
11614	`x64`	`gcc -march=barcelona -Os -fomit-frame-pointer`	20120120	20120120
11616	`x64`	`gcc -funroll-loops -march=barcelona -Os -fomit-frame-pointer`	20120120	20120120
11620	`x64`	`gcc -funroll-loops -m64 -march=barcelona -Os -fomit-frame-pointer`	20120120	20120120
11621	`x64`	`gcc -m64 -march=k8 -Os -fomit-frame-pointer`	20120120	20120120
11622	`x64`	`gcc -funroll-loops -Os -fomit-frame-pointer`	20120120	20120120
11622	`x64`	`gcc -m64 -march=core2 -Os -fomit-frame-pointer`	20120120	20120120
11623	`x64`	`gcc -m64 -march=barcelona -Os -fomit-frame-pointer`	20120120	20120120
11623	`x64`	`gcc -m64 -march=nocona -Os -fomit-frame-pointer`	20120120	20120120
11624	`x64`	`gcc -funroll-loops -m64 -march=k8 -Os -fomit-frame-pointer`	20120120	20120120
11634	`x64`	`gcc -funroll-loops -march=k8 -Os -fomit-frame-pointer`	20120120	20120120
11640	`opt`	`gcc -funroll-loops -m64 -march=nocona -Os -fomit-frame-pointer`	20120120	20120120
11643	`x64`	`gcc -march=nocona -Os -fomit-frame-pointer`	20120120	20120120
11644	`x64`	`gcc -funroll-loops -m64 -Os -fomit-frame-pointer`	20120120	20120120
11647	`opt`	`gcc -funroll-loops -march=nocona -Os -fomit-frame-pointer`	20120120	20120120
11649	`x64`	`gcc -m64 -march=core2 -msse4 -Os -fomit-frame-pointer`	20120120	20120120
11763	`opt`	`gcc -m64 -march=native -mtune=native -Os -fomit-frame-pointer`	20120120	20120120
11764	`opt`	`gcc -m64 -march=barcelona -Os -fomit-frame-pointer`	20120120	20120120
11764	`opt`	`gcc -march=barcelona -Os -fomit-frame-pointer`	20120120	20120120
11780	`opt`	`gcc -funroll-loops -Os -fomit-frame-pointer`	20120120	20120120
11780	`opt`	`gcc -funroll-loops -fno-schedule-insns -Os -fomit-frame-pointer`	20120120	20120120
11781	`opt`	`gcc -funroll-loops -march=k8 -Os -fomit-frame-pointer`	20120120	20120120
11802	`opt`	`gcc -funroll-loops -m64 -Os -fomit-frame-pointer`	20120120	20120120
11802	`opt`	`gcc -funroll-loops -m64 -march=k8 -Os -fomit-frame-pointer`	20120120	20120120
11825	`opt`	`gcc -march=k8 -Os -fomit-frame-pointer`	20120120	20120120
11828	`opt`	`gcc -m64 -march=k8 -Os -fomit-frame-pointer`	20120120	20120120
11848	`opt`	`gcc -Os -fomit-frame-pointer`	20120120	20120120
11889	`opt`	`gcc -m64 -Os -fomit-frame-pointer`	20120120	20120120
11893	`opt`	`gcc -fno-schedule-insns -Os -fomit-frame-pointer`	20120120	20120120
12357	`opt`	`gcc -funroll-loops -m64 -march=barcelona -O3 -fomit-frame-pointer`	20120120	20120120
12357	`opt`	`gcc -funroll-loops -march=barcelona -O3 -fomit-frame-pointer`	20120120	20120120
12363	`opt`	`gcc -funroll-loops -m64 -march=barcelona -O2 -fomit-frame-pointer`	20120120	20120120
12365	`opt`	`gcc -funroll-loops -march=barcelona -O2 -fomit-frame-pointer`	20120120	20120120
12374	`opt`	`gcc -O3 -fomit-frame-pointer`	20120120	20120120
12374	`opt`	`gcc -funroll-loops -march=nocona -O2 -fomit-frame-pointer`	20120120	20120120
12375	`opt`	`gcc -march=k8 -O2 -fomit-frame-pointer`	20120120	20120120
12376	`opt`	`gcc -m64 -march=k8 -O2 -fomit-frame-pointer`	20120120	20120120
12384	`opt`	`gcc -m64 -O3 -fomit-frame-pointer`	20120120	20120120
12386	`opt`	`gcc -fno-schedule-insns -O3 -fomit-frame-pointer`	20120120	20120120
12389	`opt`	`gcc -fno-schedule-insns -O2 -fomit-frame-pointer`	20120120	20120120
12390	`opt`	`gcc -march=nocona -O2 -fomit-frame-pointer`	20120120	20120120
12397	`opt`	`gcc -m64 -march=nocona -O2 -fomit-frame-pointer`	20120120	20120120
12399	`opt`	`gcc -funroll-loops -m64 -march=nocona -O2 -fomit-frame-pointer`	20120120	20120120
12399	`opt`	`gcc -funroll-loops -m64 -march=nocona -O3 -fomit-frame-pointer`	20120120	20120120
12399	`opt`	`gcc -m64 -march=k8 -O3 -fomit-frame-pointer`	20120120	20120120
12401	`opt`	`gcc -funroll-loops -march=nocona -O3 -fomit-frame-pointer`	20120120	20120120
12409	`opt`	`gcc -march=k8 -O3 -fomit-frame-pointer`	20120120	20120120
12412	`opt`	`gcc -O2 -fomit-frame-pointer`	20120120	20120120
12415	`opt`	`gcc -m64 -march=nocona -O3 -fomit-frame-pointer`	20120120	20120120
12415	`opt`	`gcc -march=nocona -O3 -fomit-frame-pointer`	20120120	20120120
12433	`opt`	`gcc -m64 -O2 -fomit-frame-pointer`	20120120	20120120
12441	`opt`	`gcc -m64 -march=core2 -msse4.1 -O2 -fomit-frame-pointer`	20120120	20120120
12452	`opt`	`gcc -m64 -march=core2 -msse4.1 -O3 -fomit-frame-pointer`	20120120	20120120
12455	`opt`	`gcc -m64 -march=core2 -msse4 -O3 -fomit-frame-pointer`	20120120	20120120
12458	`opt`	`gcc -m64 -march=core2 -O2 -fomit-frame-pointer`	20120120	20120120
12480	`opt`	`gcc -m64 -march=core2 -msse4 -O2 -fomit-frame-pointer`	20120120	20120120
12484	`opt`	`gcc -m64 -march=core2 -O3 -fomit-frame-pointer`	20120120	20120120
12491	`opt`	`gcc -funroll-loops -march=k8 -O2 -fomit-frame-pointer`	20120120	20120120
12495	`opt`	`gcc -funroll-loops -m64 -march=k8 -O2 -fomit-frame-pointer`	20120120	20120120
12514	`opt`	`gcc -funroll-loops -m64 -march=k8 -O3 -fomit-frame-pointer`	20120120	20120120
12518	`opt`	`gcc -funroll-loops -fno-schedule-insns -O2 -fomit-frame-pointer`	20120120	20120120
12520	`opt`	`gcc -funroll-loops -O3 -fomit-frame-pointer`	20120120	20120120
12521	`opt`	`gcc -funroll-loops -O2 -fomit-frame-pointer`	20120120	20120120
12525	`opt`	`gcc -funroll-loops -m64 -O3 -fomit-frame-pointer`	20120120	20120120
12529	`opt`	`gcc -funroll-loops -march=k8 -O3 -fomit-frame-pointer`	20120120	20120120
12531	`opt`	`gcc -funroll-loops -m64 -O2 -fomit-frame-pointer`	20120120	20120120
12532	`opt`	`gcc -funroll-loops -fno-schedule-insns -O3 -fomit-frame-pointer`	20120120	20120120
12548	`opt`	`gcc -march=barcelona -O3 -fomit-frame-pointer`	20120120	20120120
12554	`opt`	`gcc -m64 -march=native -mtune=native -O3 -fomit-frame-pointer`	20120120	20120120
12558	`opt`	`gcc -m64 -march=barcelona -O3 -fomit-frame-pointer`	20120120	20120120
12563	`opt`	`gcc -m64 -march=core2 -msse4.1 -Os -fomit-frame-pointer`	20120120	20120120
12563	`opt`	`gcc -m64 -march=core2 -msse4 -Os -fomit-frame-pointer`	20120120	20120120
12565	`opt`	`gcc -m64 -march=core2 -Os -fomit-frame-pointer`	20120120	20120120
12575	`opt`	`gcc -m64 -march=native -mtune=native -O2 -fomit-frame-pointer`	20120120	20120120
12579	`opt`	`gcc -m64 -march=barcelona -O2 -fomit-frame-pointer`	20120120	20120120
12583	`opt`	`gcc -march=barcelona -O2 -fomit-frame-pointer`	20120120	20120120
78061	`opt`	`gcc -funroll-loops`	20120120	20120120
78144	`opt`	`cc`	20120120	20120120
78498	`opt`	`gcc`	20120120	20120120

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: 87, 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 -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=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:

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