Implementation notes: amd64, giant0, crypto_hash/skein10241024

Computer: giant0
Architecture: amd64
CPU ID: GenuineIntel-00010676-bfebfbff
SUPERCOP version: 20120207
Operation: crypto_hash
Primitive: skein10241024

Time	Implementation	Compiler	Benchmark date	SUPERCOP version
12776	`x64`	`gcc -funroll-loops -march=nocona -O -fomit-frame-pointer`	20120120	20120120
12792	`x64`	`gcc -march=nocona -O2 -fomit-frame-pointer`	20120120	20120120
12800	`x64`	`gcc -fno-schedule-insns -O2 -fomit-frame-pointer`	20120120	20120120
12808	`x64`	`gcc -funroll-loops -fno-schedule-insns -O2 -fomit-frame-pointer`	20120120	20120120
12808	`x64`	`gcc -funroll-loops -m64 -O3 -fomit-frame-pointer`	20120120	20120120
12808	`x64`	`gcc -m64 -march=k8 -O2 -fomit-frame-pointer`	20120120	20120120
12808	`x64`	`gcc -march=nocona -O3 -fomit-frame-pointer`	20120120	20120120
12816	`x64`	`gcc -funroll-loops -O2 -fomit-frame-pointer`	20120120	20120120
12816	`x64`	`gcc -m64 -march=core2 -O2 -fomit-frame-pointer`	20120120	20120120
12824	`x64`	`gcc -m64 -march=core2 -msse4.1 -O3 -fomit-frame-pointer`	20120120	20120120
12824	`x64`	`gcc -m64 -march=nocona -O2 -fomit-frame-pointer`	20120120	20120120
12824	`x64`	`gcc -march=k8 -O2 -fomit-frame-pointer`	20120120	20120120
12832	`x64`	`gcc -funroll-loops -O3 -fomit-frame-pointer`	20120120	20120120
12832	`x64`	`gcc -m64 -march=core2 -O3 -fomit-frame-pointer`	20120120	20120120
12840	`x64`	`gcc -funroll-loops -fno-schedule-insns -O -fomit-frame-pointer`	20120120	20120120
12848	`x64`	`gcc -fno-schedule-insns -O3 -fomit-frame-pointer`	20120120	20120120
12848	`x64`	`gcc -funroll-loops -march=k8 -O3 -fomit-frame-pointer`	20120120	20120120
12848	`x64`	`gcc -funroll-loops -march=nocona -O2 -fomit-frame-pointer`	20120120	20120120
12848	`x64`	`gcc -funroll-loops -march=nocona -O3 -fomit-frame-pointer`	20120120	20120120
12856	`x64`	`gcc -funroll-loops -m64 -march=k8 -O3 -fomit-frame-pointer`	20120120	20120120
12856	`x64`	`gcc -funroll-loops -m64 -march=nocona -O3 -fomit-frame-pointer`	20120120	20120120
12856	`x64`	`gcc -m64 -O3 -fomit-frame-pointer`	20120120	20120120
12856	`x64`	`gcc -m64 -march=barcelona -O3 -fomit-frame-pointer`	20120120	20120120
12864	`x64`	`gcc -funroll-loops -fno-schedule-insns -O3 -fomit-frame-pointer`	20120120	20120120
12864	`x64`	`gcc -funroll-loops -m64 -march=nocona -O2 -fomit-frame-pointer`	20120120	20120120
12864	`x64`	`gcc -m64 -march=barcelona -O2 -fomit-frame-pointer`	20120120	20120120
12864	`x64`	`gcc -m64 -march=k8 -O3 -fomit-frame-pointer`	20120120	20120120
12864	`x64`	`gcc -m64 -march=nocona -O3 -fomit-frame-pointer`	20120120	20120120
12872	`x64`	`gcc -funroll-loops -m64 -O2 -fomit-frame-pointer`	20120120	20120120
12880	`x64`	`gcc -O3 -fomit-frame-pointer`	20120120	20120120
12880	`x64`	`gcc -fno-schedule-insns -O -fomit-frame-pointer`	20120120	20120120
12880	`x64`	`gcc -funroll-loops -march=k8 -O2 -fomit-frame-pointer`	20120120	20120120
12880	`x64`	`gcc -m64 -O -fomit-frame-pointer`	20120120	20120120
12880	`x64`	`gcc -m64 -march=core2 -O -fomit-frame-pointer`	20120120	20120120
12888	`x64`	`gcc -funroll-loops -march=barcelona -O -fomit-frame-pointer`	20120120	20120120
12888	`x64`	`gcc -march=barcelona -O -fomit-frame-pointer`	20120120	20120120
12888	`x64`	`gcc -march=k8 -O3 -fomit-frame-pointer`	20120120	20120120
12888	`x64`	`gcc -march=k8 -O -fomit-frame-pointer`	20120120	20120120
12896	`x64`	`gcc -O2 -fomit-frame-pointer`	20120120	20120120
12896	`x64`	`gcc -O -fomit-frame-pointer`	20120120	20120120
12896	`x64`	`gcc -funroll-loops -m64 -O -fomit-frame-pointer`	20120120	20120120
12896	`x64`	`gcc -funroll-loops -m64 -march=barcelona -O2 -fomit-frame-pointer`	20120120	20120120
12896	`x64`	`gcc -funroll-loops -m64 -march=k8 -O2 -fomit-frame-pointer`	20120120	20120120
12896	`x64`	`gcc -funroll-loops -m64 -march=k8 -O -fomit-frame-pointer`	20120120	20120120
12896	`x64`	`gcc -m64 -march=core2 -msse4 -O3 -fomit-frame-pointer`	20120120	20120120
12896	`x64`	`gcc -march=barcelona -O2 -fomit-frame-pointer`	20120120	20120120
12904	`x64`	`gcc -funroll-loops -O -fomit-frame-pointer`	20120120	20120120
12904	`x64`	`gcc -funroll-loops -m64 -march=barcelona -O -fomit-frame-pointer`	20120120	20120120
12904	`x64`	`gcc -funroll-loops -m64 -march=nocona -O -fomit-frame-pointer`	20120120	20120120
12904	`x64`	`gcc -m64 -march=nocona -O -fomit-frame-pointer`	20120120	20120120
12904	`x64`	`gcc -march=barcelona -O3 -fomit-frame-pointer`	20120120	20120120
12912	`x64`	`gcc -funroll-loops -m64 -march=barcelona -O3 -fomit-frame-pointer`	20120120	20120120
12912	`x64`	`gcc -funroll-loops -march=k8 -O -fomit-frame-pointer`	20120120	20120120
12912	`x64`	`gcc -m64 -O2 -fomit-frame-pointer`	20120120	20120120
12912	`x64`	`gcc -m64 -march=core2 -msse4.1 -O2 -fomit-frame-pointer`	20120120	20120120
12912	`x64`	`gcc -m64 -march=native -mtune=native -O3 -fomit-frame-pointer`	20120120	20120120
12920	`x64`	`gcc -funroll-loops -march=barcelona -O2 -fomit-frame-pointer`	20120120	20120120
12920	`x64`	`gcc -m64 -march=core2 -msse4 -O2 -fomit-frame-pointer`	20120120	20120120
12920	`x64`	`gcc -m64 -march=k8 -O -fomit-frame-pointer`	20120120	20120120
12920	`x64`	`gcc -march=nocona -O -fomit-frame-pointer`	20120120	20120120
12928	`x64`	`gcc -funroll-loops -march=barcelona -O3 -fomit-frame-pointer`	20120120	20120120
12936	`x64`	`gcc -m64 -march=barcelona -O -fomit-frame-pointer`	20120120	20120120
12936	`x64`	`gcc -m64 -march=native -mtune=native -O2 -fomit-frame-pointer`	20120120	20120120
12944	`x64`	`gcc -funroll-loops`	20120120	20120120
12960	`x64`	`gcc -m64 -march=core2 -msse4.1 -O -fomit-frame-pointer`	20120120	20120120
12960	`x64`	`gcc -m64 -march=native -mtune=native -O -fomit-frame-pointer`	20120120	20120120
12968	`x64`	`gcc`	20120120	20120120
12976	`x64`	`gcc -m64 -march=core2 -msse4 -O -fomit-frame-pointer`	20120120	20120120
12992	`x64`	`cc`	20120120	20120120
13192	`x64`	`gcc -m64 -Os -fomit-frame-pointer`	20120120	20120120
13208	`x64`	`gcc -Os -fomit-frame-pointer`	20120120	20120120
13216	`x64`	`gcc -m64 -march=nocona -Os -fomit-frame-pointer`	20120120	20120120
13224	`x64`	`gcc -march=k8 -Os -fomit-frame-pointer`	20120120	20120120
13232	`x64`	`gcc -m64 -march=native -mtune=native -Os -fomit-frame-pointer`	20120120	20120120
13248	`x64`	`gcc -funroll-loops -m64 -march=k8 -Os -fomit-frame-pointer`	20120120	20120120
13264	`x64`	`gcc -m64 -march=core2 -msse4 -Os -fomit-frame-pointer`	20120120	20120120
13272	`x64`	`gcc -funroll-loops -m64 -march=barcelona -Os -fomit-frame-pointer`	20120120	20120120
13280	`x64`	`gcc -fno-schedule-insns -Os -fomit-frame-pointer`	20120120	20120120
13280	`x64`	`gcc -funroll-loops -m64 -Os -fomit-frame-pointer`	20120120	20120120
13288	`x64`	`gcc -m64 -march=barcelona -Os -fomit-frame-pointer`	20120120	20120120
13288	`x64`	`gcc -m64 -march=core2 -msse4.1 -Os -fomit-frame-pointer`	20120120	20120120
13296	`x64`	`gcc -funroll-loops -m64 -march=nocona -Os -fomit-frame-pointer`	20120120	20120120
13296	`x64`	`gcc -m64 -march=core2 -Os -fomit-frame-pointer`	20120120	20120120
13312	`x64`	`gcc -funroll-loops -march=barcelona -Os -fomit-frame-pointer`	20120120	20120120
13320	`x64`	`gcc -funroll-loops -Os -fomit-frame-pointer`	20120120	20120120
13320	`x64`	`gcc -funroll-loops -fno-schedule-insns -Os -fomit-frame-pointer`	20120120	20120120
13328	`x64`	`gcc -funroll-loops -march=nocona -Os -fomit-frame-pointer`	20120120	20120120
13328	`x64`	`gcc -m64 -march=k8 -Os -fomit-frame-pointer`	20120120	20120120
13376	`x64`	`gcc -funroll-loops -march=k8 -Os -fomit-frame-pointer`	20120120	20120120
13392	`x64`	`gcc -march=nocona -Os -fomit-frame-pointer`	20120120	20120120
13424	`x64`	`gcc -march=barcelona -Os -fomit-frame-pointer`	20120120	20120120
18128	`opt`	`gcc -m64 -march=nocona -O -fomit-frame-pointer`	20120120	20120120
18152	`opt`	`gcc -march=nocona -O -fomit-frame-pointer`	20120120	20120120
18208	`opt`	`gcc -O -fomit-frame-pointer`	20120120	20120120
18208	`opt`	`gcc -m64 -O -fomit-frame-pointer`	20120120	20120120
18248	`opt`	`gcc -fno-schedule-insns -O -fomit-frame-pointer`	20120120	20120120
18408	`opt`	`gcc -funroll-loops -m64 -march=barcelona -O -fomit-frame-pointer`	20120120	20120120
18408	`opt`	`gcc -funroll-loops -march=barcelona -O -fomit-frame-pointer`	20120120	20120120
18424	`opt`	`gcc -march=barcelona -O -fomit-frame-pointer`	20120120	20120120
18432	`opt`	`gcc -m64 -march=barcelona -O -fomit-frame-pointer`	20120120	20120120
18456	`opt`	`gcc -m64 -march=core2 -O -fomit-frame-pointer`	20120120	20120120
18456	`opt`	`gcc -m64 -march=core2 -msse4 -O -fomit-frame-pointer`	20120120	20120120
18456	`opt`	`gcc -m64 -march=k8 -O -fomit-frame-pointer`	20120120	20120120
18456	`opt`	`gcc -m64 -march=native -mtune=native -O -fomit-frame-pointer`	20120120	20120120
18464	`opt`	`gcc -m64 -march=core2 -msse4.1 -O -fomit-frame-pointer`	20120120	20120120
18472	`opt`	`gcc -funroll-loops -march=k8 -O -fomit-frame-pointer`	20120120	20120120
18472	`opt`	`gcc -march=k8 -O -fomit-frame-pointer`	20120120	20120120
18504	`opt`	`gcc -funroll-loops -m64 -march=k8 -O -fomit-frame-pointer`	20120120	20120120
18520	`opt`	`gcc -funroll-loops -O -fomit-frame-pointer`	20120120	20120120
18520	`opt`	`gcc -funroll-loops -fno-schedule-insns -O -fomit-frame-pointer`	20120120	20120120
18528	`opt`	`gcc -funroll-loops -m64 -O -fomit-frame-pointer`	20120120	20120120
18544	`opt`	`gcc -funroll-loops -march=nocona -O -fomit-frame-pointer`	20120120	20120120
18576	`opt`	`gcc -funroll-loops -m64 -march=nocona -O -fomit-frame-pointer`	20120120	20120120
18896	`opt`	`gcc -funroll-loops -march=barcelona -O2 -fomit-frame-pointer`	20120120	20120120
18920	`opt`	`gcc -funroll-loops -m64 -march=barcelona -O2 -fomit-frame-pointer`	20120120	20120120
19160	`opt`	`gcc -march=barcelona -O2 -fomit-frame-pointer`	20120120	20120120
19168	`opt`	`gcc -m64 -march=core2 -msse4 -O2 -fomit-frame-pointer`	20120120	20120120
19184	`opt`	`gcc -m64 -march=native -mtune=native -O2 -fomit-frame-pointer`	20120120	20120120
19192	`opt`	`gcc -m64 -march=core2 -O2 -fomit-frame-pointer`	20120120	20120120
19192	`opt`	`gcc -m64 -march=core2 -msse4.1 -O2 -fomit-frame-pointer`	20120120	20120120
19208	`opt`	`gcc -m64 -march=barcelona -O2 -fomit-frame-pointer`	20120120	20120120
19296	`opt`	`gcc -funroll-loops -march=k8 -O2 -fomit-frame-pointer`	20120120	20120120
19344	`opt`	`gcc -funroll-loops -m64 -march=k8 -O2 -fomit-frame-pointer`	20120120	20120120
19368	`opt`	`gcc -march=k8 -O2 -fomit-frame-pointer`	20120120	20120120
19384	`opt`	`gcc -m64 -march=k8 -O2 -fomit-frame-pointer`	20120120	20120120
19856	`opt`	`gcc -funroll-loops -O2 -fomit-frame-pointer`	20120120	20120120
19880	`opt`	`gcc -funroll-loops -fno-schedule-insns -O2 -fomit-frame-pointer`	20120120	20120120
19880	`opt`	`gcc -funroll-loops -m64 -O2 -fomit-frame-pointer`	20120120	20120120
19992	`opt`	`gcc -fno-schedule-insns -O2 -fomit-frame-pointer`	20120120	20120120
20104	`opt`	`gcc -O2 -fomit-frame-pointer`	20120120	20120120
20136	`opt`	`gcc -m64 -O2 -fomit-frame-pointer`	20120120	20120120
20240	`opt`	`gcc -funroll-loops -m64 -march=k8 -Os -fomit-frame-pointer`	20120120	20120120
20248	`opt`	`gcc -funroll-loops -fno-schedule-insns -Os -fomit-frame-pointer`	20120120	20120120
20272	`opt`	`gcc -funroll-loops -m64 -Os -fomit-frame-pointer`	20120120	20120120
20360	`opt`	`gcc -m64 -march=core2 -msse4 -O3 -fomit-frame-pointer`	20120120	20120120
20384	`opt`	`gcc -m64 -march=core2 -O3 -fomit-frame-pointer`	20120120	20120120
20440	`opt`	`gcc -funroll-loops -march=nocona -O2 -fomit-frame-pointer`	20120120	20120120
20472	`opt`	`gcc -funroll-loops -march=k8 -Os -fomit-frame-pointer`	20120120	20120120
20472	`opt`	`gcc -m64 -march=nocona -O2 -fomit-frame-pointer`	20120120	20120120
20472	`opt`	`gcc -march=nocona -O2 -fomit-frame-pointer`	20120120	20120120
20544	`opt`	`gcc -funroll-loops -m64 -march=nocona -O2 -fomit-frame-pointer`	20120120	20120120
20560	`opt`	`gcc -m64 -march=core2 -msse4.1 -O3 -fomit-frame-pointer`	20120120	20120120
20624	`opt`	`gcc -m64 -march=native -mtune=native -O3 -fomit-frame-pointer`	20120120	20120120
20648	`opt`	`gcc -m64 -march=barcelona -O3 -fomit-frame-pointer`	20120120	20120120
20664	`opt`	`gcc -march=barcelona -O3 -fomit-frame-pointer`	20120120	20120120
20688	`opt`	`gcc -funroll-loops -Os -fomit-frame-pointer`	20120120	20120120
20728	`opt`	`gcc -m64 -march=k8 -O3 -fomit-frame-pointer`	20120120	20120120
20728	`opt`	`gcc -march=k8 -O3 -fomit-frame-pointer`	20120120	20120120
20792	`opt`	`gcc -m64 -march=k8 -Os -fomit-frame-pointer`	20120120	20120120
20800	`opt`	`gcc -funroll-loops -m64 -march=barcelona -Os -fomit-frame-pointer`	20120120	20120120
20832	`opt`	`gcc -funroll-loops -march=barcelona -Os -fomit-frame-pointer`	20120120	20120120
20840	`opt`	`gcc -m64 -Os -fomit-frame-pointer`	20120120	20120120
20872	`opt`	`gcc -fno-schedule-insns -Os -fomit-frame-pointer`	20120120	20120120
20888	`opt`	`gcc -Os -fomit-frame-pointer`	20120120	20120120
20920	`opt`	`gcc -march=k8 -Os -fomit-frame-pointer`	20120120	20120120
21000	`opt`	`gcc -funroll-loops -m64 -march=barcelona -O3 -fomit-frame-pointer`	20120120	20120120
21000	`opt`	`gcc -funroll-loops -march=barcelona -O3 -fomit-frame-pointer`	20120120	20120120
21152	`opt`	`gcc -funroll-loops -march=k8 -O3 -fomit-frame-pointer`	20120120	20120120
21264	`opt`	`gcc -funroll-loops -m64 -march=k8 -O3 -fomit-frame-pointer`	20120120	20120120
21456	`opt`	`gcc -m64 -march=core2 -msse4 -Os -fomit-frame-pointer`	20120120	20120120
21472	`opt`	`gcc -m64 -march=core2 -Os -fomit-frame-pointer`	20120120	20120120
21472	`opt`	`gcc -m64 -march=native -mtune=native -Os -fomit-frame-pointer`	20120120	20120120
21472	`opt`	`gcc -march=barcelona -Os -fomit-frame-pointer`	20120120	20120120
21488	`opt`	`gcc -m64 -march=core2 -msse4.1 -Os -fomit-frame-pointer`	20120120	20120120
21552	`opt`	`gcc -m64 -march=barcelona -Os -fomit-frame-pointer`	20120120	20120120
21688	`opt`	`gcc -m64 -march=nocona -Os -fomit-frame-pointer`	20120120	20120120
21712	`opt`	`gcc -march=nocona -Os -fomit-frame-pointer`	20120120	20120120
21720	`opt`	`gcc -O3 -fomit-frame-pointer`	20120120	20120120
21720	`opt`	`gcc -fno-schedule-insns -O3 -fomit-frame-pointer`	20120120	20120120
21720	`opt`	`gcc -funroll-loops -m64 -march=nocona -Os -fomit-frame-pointer`	20120120	20120120
21728	`opt`	`gcc -m64 -O3 -fomit-frame-pointer`	20120120	20120120
21744	`opt`	`gcc -funroll-loops -march=nocona -Os -fomit-frame-pointer`	20120120	20120120
21960	`opt`	`gcc -funroll-loops -march=nocona -O3 -fomit-frame-pointer`	20120120	20120120
22008	`opt`	`gcc -m64 -march=nocona -O3 -fomit-frame-pointer`	20120120	20120120
22064	`opt`	`gcc -march=nocona -O3 -fomit-frame-pointer`	20120120	20120120
22120	`opt`	`gcc -funroll-loops -m64 -march=nocona -O3 -fomit-frame-pointer`	20120120	20120120
22344	`opt`	`gcc -funroll-loops -O3 -fomit-frame-pointer`	20120120	20120120
22368	`opt`	`gcc -funroll-loops -fno-schedule-insns -O3 -fomit-frame-pointer`	20120120	20120120
22368	`opt`	`gcc -funroll-loops -m64 -O3 -fomit-frame-pointer`	20120120	20120120
68760	`opt`	`cc`	20120120	20120120
68768	`opt`	`gcc`	20120120	20120120
68960	`opt`	`gcc -funroll-loops`	20120120	20120120

Compiler output

Implementation: crypto_hash/skein10241024/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/skein10241024/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