Implementation notes: amd64, jos, crypto_hash/skein10241024

Computer: jos
Architecture: amd64
CPU ID: GenuineIntel-00010676-bfebfbff
SUPERCOP version: 20141014
Operation: crypto_hash
Primitive: skein10241024

Time	Implementation	Compiler	Benchmark date	SUPERCOP version
12727	`x64`	`gcc -m64 -march=nocona -O2 -fomit-frame-pointer`	20140703	20140622
12802	`x64`	`gcc -fno-schedule-insns -O -fomit-frame-pointer`	20140703	20140622
12802	`x64`	`gcc -m64 -march=nocona -O3 -fomit-frame-pointer`	20140703	20140622
12803	`x64`	`gcc -funroll-loops -fno-schedule-insns -O2 -fomit-frame-pointer`	20140703	20140622
12810	`x64`	`gcc -funroll-loops -m64 -O3 -fomit-frame-pointer`	20140703	20140622
12818	`x64`	`gcc -funroll-loops -m64 -march=nocona -O -fomit-frame-pointer`	20140703	20140622
12818	`x64`	`gcc -funroll-loops -march=barcelona -O2 -fomit-frame-pointer`	20140703	20140622
12825	`x64`	`gcc -funroll-loops -fno-schedule-insns -O3 -fomit-frame-pointer`	20140703	20140622
12825	`x64`	`gcc -funroll-loops -m64 -march=nocona -O3 -fomit-frame-pointer`	20140703	20140622
12825	`x64`	`gcc -march=barcelona -O3 -fomit-frame-pointer`	20140703	20140622
12833	`x64`	`gcc -funroll-loops -O -fomit-frame-pointer`	20140703	20140622
12840	`x64`	`gcc -O -fomit-frame-pointer`	20140703	20140622
12840	`x64`	`gcc -funroll-loops -O3 -fomit-frame-pointer`	20140703	20140622
12840	`x64`	`gcc -funroll-loops -march=nocona -O -fomit-frame-pointer`	20140703	20140622
12847	`x64`	`gcc -O2 -fomit-frame-pointer`	20140703	20140622
12847	`x64`	`gcc -O3 -fomit-frame-pointer`	20140703	20140622
12847	`x64`	`gcc -funroll-loops -m64 -march=k8 -O3 -fomit-frame-pointer`	20140703	20140622
12847	`x64`	`gcc -m64 -O3 -fomit-frame-pointer`	20140703	20140622
12848	`x64`	`gcc -m64 -march=nocona -O -fomit-frame-pointer`	20140703	20140622
12855	`x64`	`gcc -funroll-loops -m64 -O2 -fomit-frame-pointer`	20140703	20140622
12855	`x64`	`gcc -m64 -march=k8 -O2 -fomit-frame-pointer`	20140703	20140622
12862	`x64`	`gcc -funroll-loops -m64 -march=barcelona -O2 -fomit-frame-pointer`	20140703	20140622
12862	`x64`	`gcc -march=k8 -O2 -fomit-frame-pointer`	20140703	20140622
12862	`x64`	`gcc -march=k8 -O -fomit-frame-pointer`	20140703	20140622
12863	`x64`	`gcc -m64 -O -fomit-frame-pointer`	20140703	20140622
12863	`x64`	`gcc -m64 -march=core2 -O2 -fomit-frame-pointer`	20140703	20140622
12870	`x64`	`gcc -funroll-loops -O2 -fomit-frame-pointer`	20140703	20140622
12870	`x64`	`gcc -funroll-loops -m64 -O -fomit-frame-pointer`	20140703	20140622
12870	`x64`	`gcc -march=nocona -O2 -fomit-frame-pointer`	20140703	20140622
12877	`x64`	`gcc -funroll-loops -fno-schedule-insns -O -fomit-frame-pointer`	20140703	20140622
12877	`x64`	`gcc -funroll-loops -march=k8 -O2 -fomit-frame-pointer`	20140703	20140622
12885	`x64`	`gcc -m64 -march=barcelona -O -fomit-frame-pointer`	20140703	20140622
12885	`x64`	`gcc -m64 -march=core2 -O3 -fomit-frame-pointer`	20140703	20140622
12885	`x64`	`gcc -march=nocona -O3 -fomit-frame-pointer`	20140703	20140622
12892	`x64`	`gcc -m64 -march=k8 -O -fomit-frame-pointer`	20140703	20140622
12893	`x64`	`gcc -march=k8 -O3 -fomit-frame-pointer`	20140703	20140622
12900	`x64`	`gcc -fno-schedule-insns -O3 -fomit-frame-pointer`	20140703	20140622
12900	`x64`	`gcc -m64 -march=core2 -O -fomit-frame-pointer`	20140703	20140622
12907	`x64`	`gcc -funroll-loops -m64 -march=k8 -O -fomit-frame-pointer`	20140703	20140622
12907	`x64`	`gcc -m64 -march=core2 -msse4.1 -O -fomit-frame-pointer`	20140703	20140622
12907	`x64`	`gcc -m64 -march=native -mtune=native -O3 -fomit-frame-pointer`	20140703	20140622
12907	`x64`	`gcc -march=barcelona -O2 -fomit-frame-pointer`	20140703	20140622
12908	`x64`	`gcc -funroll-loops -march=barcelona -O3 -fomit-frame-pointer`	20140703	20140622
12908	`x64`	`gcc -m64 -march=barcelona -O3 -fomit-frame-pointer`	20140703	20140622
12915	`x64`	`gcc -fno-schedule-insns -O2 -fomit-frame-pointer`	20140703	20140622
12915	`x64`	`gcc -funroll-loops`	20140703	20140622
12915	`x64`	`gcc -m64 -march=core2 -msse4 -O2 -fomit-frame-pointer`	20140703	20140622
12915	`x64`	`gcc -m64 -march=native -mtune=native -O -fomit-frame-pointer`	20140703	20140622
12922	`x64`	`gcc -funroll-loops -m64 -march=barcelona -O3 -fomit-frame-pointer`	20140703	20140622
12922	`x64`	`gcc -funroll-loops -m64 -march=k8 -O2 -fomit-frame-pointer`	20140703	20140622
12922	`x64`	`gcc -funroll-loops -march=k8 -O -fomit-frame-pointer`	20140703	20140622
12922	`x64`	`gcc -march=barcelona -O -fomit-frame-pointer`	20140703	20140622
12923	`x64`	`gcc -funroll-loops -march=nocona -O2 -fomit-frame-pointer`	20140703	20140622
12923	`x64`	`gcc -m64 -march=barcelona -O2 -fomit-frame-pointer`	20140703	20140622
12923	`x64`	`gcc -m64 -march=core2 -msse4.1 -O2 -fomit-frame-pointer`	20140703	20140622
12930	`x64`	`gcc -funroll-loops -march=barcelona -O -fomit-frame-pointer`	20140703	20140622
12937	`x64`	`gcc -funroll-loops -march=nocona -O3 -fomit-frame-pointer`	20140703	20140622
12938	`x64`	`gcc -m64 -march=native -mtune=native -O2 -fomit-frame-pointer`	20140703	20140622
12945	`x64`	`gcc -m64 -march=core2 -msse4.1 -O3 -fomit-frame-pointer`	20140703	20140622
12945	`x64`	`gcc -m64 -march=core2 -msse4 -O -fomit-frame-pointer`	20140703	20140622
12960	`x64`	`cc`	20140703	20140622
12960	`x64`	`gcc`	20140703	20140622
12960	`x64`	`gcc -m64 -march=k8 -O3 -fomit-frame-pointer`	20140703	20140622
12968	`x64`	`gcc -funroll-loops -m64 -march=nocona -O2 -fomit-frame-pointer`	20140703	20140622
12975	`x64`	`gcc -funroll-loops -march=k8 -O3 -fomit-frame-pointer`	20140703	20140622
12975	`x64`	`gcc -m64 -march=core2 -msse4 -O3 -fomit-frame-pointer`	20140703	20140622
12982	`x64`	`gcc -m64 -O2 -fomit-frame-pointer`	20140703	20140622
12997	`x64`	`gcc -funroll-loops -m64 -march=barcelona -O -fomit-frame-pointer`	20140703	20140622
13013	`x64`	`gcc -march=nocona -O -fomit-frame-pointer`	20140703	20140622
13200	`x64`	`gcc -march=k8 -Os -fomit-frame-pointer`	20140703	20140622
13208	`x64`	`gcc -m64 -march=native -mtune=native -Os -fomit-frame-pointer`	20140703	20140622
13222	`x64`	`gcc -m64 -march=core2 -msse4.1 -Os -fomit-frame-pointer`	20140703	20140622
13230	`x64`	`gcc -m64 -march=k8 -Os -fomit-frame-pointer`	20140703	20140622
13252	`x64`	`gcc -fno-schedule-insns -Os -fomit-frame-pointer`	20140703	20140622
13252	`x64`	`gcc -march=barcelona -Os -fomit-frame-pointer`	20140703	20140622
13275	`x64`	`gcc -Os -fomit-frame-pointer`	20140703	20140622
13282	`x64`	`gcc -funroll-loops -fno-schedule-insns -Os -fomit-frame-pointer`	20140703	20140622
13282	`x64`	`gcc -m64 -march=core2 -Os -fomit-frame-pointer`	20140703	20140622
13298	`x64`	`gcc -funroll-loops -m64 -march=nocona -Os -fomit-frame-pointer`	20140703	20140622
13305	`x64`	`gcc -funroll-loops -march=nocona -Os -fomit-frame-pointer`	20140703	20140622
13312	`x64`	`gcc -m64 -Os -fomit-frame-pointer`	20140703	20140622
13313	`x64`	`gcc -m64 -march=barcelona -Os -fomit-frame-pointer`	20140703	20140622
13320	`x64`	`gcc -funroll-loops -Os -fomit-frame-pointer`	20140703	20140622
13320	`x64`	`gcc -funroll-loops -march=barcelona -Os -fomit-frame-pointer`	20140703	20140622
13320	`x64`	`gcc -funroll-loops -march=k8 -Os -fomit-frame-pointer`	20140703	20140622
13328	`x64`	`gcc -m64 -march=core2 -msse4 -Os -fomit-frame-pointer`	20140703	20140622
13335	`x64`	`gcc -funroll-loops -m64 -march=k8 -Os -fomit-frame-pointer`	20140703	20140622
13350	`x64`	`gcc -m64 -march=nocona -Os -fomit-frame-pointer`	20140703	20140622
13387	`x64`	`gcc -funroll-loops -m64 -Os -fomit-frame-pointer`	20140703	20140622
13395	`x64`	`gcc -march=nocona -Os -fomit-frame-pointer`	20140703	20140622
13417	`x64`	`gcc -funroll-loops -m64 -march=barcelona -Os -fomit-frame-pointer`	20140703	20140622
15517	`opt`	`gcc -m64 -O -fomit-frame-pointer`	20140703	20140622
15532	`opt`	`gcc -m64 -march=nocona -O -fomit-frame-pointer`	20140703	20140622
15547	`opt`	`gcc -O -fomit-frame-pointer`	20140703	20140622
15577	`opt`	`gcc -march=nocona -O -fomit-frame-pointer`	20140703	20140622
15592	`opt`	`gcc -funroll-loops -march=nocona -O -fomit-frame-pointer`	20140703	20140622
15593	`opt`	`gcc -funroll-loops -fno-schedule-insns -O -fomit-frame-pointer`	20140703	20140622
15600	`opt`	`gcc -funroll-loops -m64 -march=nocona -O -fomit-frame-pointer`	20140703	20140622
15660	`opt`	`gcc -funroll-loops -O -fomit-frame-pointer`	20140703	20140622
15660	`opt`	`gcc -funroll-loops -m64 -O -fomit-frame-pointer`	20140703	20140622
15683	`opt`	`gcc -fno-schedule-insns -O -fomit-frame-pointer`	20140703	20140622
15705	`opt`	`gcc -m64 -march=core2 -O -fomit-frame-pointer`	20140703	20140622
15787	`opt`	`gcc -m64 -march=barcelona -O -fomit-frame-pointer`	20140703	20140622
15787	`opt`	`gcc -m64 -march=core2 -msse4 -O -fomit-frame-pointer`	20140703	20140622
15787	`opt`	`gcc -march=k8 -O -fomit-frame-pointer`	20140703	20140622
15817	`opt`	`gcc -m64 -march=k8 -O -fomit-frame-pointer`	20140703	20140622
15818	`opt`	`gcc -march=barcelona -O -fomit-frame-pointer`	20140703	20140622
15825	`opt`	`gcc -funroll-loops -march=barcelona -O -fomit-frame-pointer`	20140703	20140622
15825	`opt`	`gcc -m64 -march=core2 -msse4.1 -O -fomit-frame-pointer`	20140703	20140622
15825	`opt`	`gcc -m64 -march=native -mtune=native -O -fomit-frame-pointer`	20140703	20140622
15832	`opt`	`gcc -funroll-loops -m64 -march=k8 -O -fomit-frame-pointer`	20140703	20140622
15840	`opt`	`gcc -funroll-loops -m64 -march=barcelona -O -fomit-frame-pointer`	20140703	20140622
15840	`opt`	`gcc -funroll-loops -march=k8 -O -fomit-frame-pointer`	20140703	20140622
18540	`opt`	`gcc -funroll-loops -march=nocona -Os -fomit-frame-pointer`	20140703	20140622
18540	`opt`	`gcc -m64 -march=core2 -msse4.1 -Os -fomit-frame-pointer`	20140703	20140622
18608	`opt`	`gcc -m64 -march=core2 -Os -fomit-frame-pointer`	20140703	20140622
18705	`opt`	`gcc -m64 -march=core2 -msse4 -Os -fomit-frame-pointer`	20140703	20140622
18712	`opt`	`gcc -m64 -march=native -mtune=native -Os -fomit-frame-pointer`	20140703	20140622
18720	`opt`	`gcc -m64 -march=nocona -Os -fomit-frame-pointer`	20140703	20140622
18727	`opt`	`gcc -march=nocona -O3 -fomit-frame-pointer`	20140703	20140622
18757	`opt`	`gcc -m64 -march=nocona -O3 -fomit-frame-pointer`	20140703	20140622
18773	`opt`	`gcc -march=nocona -Os -fomit-frame-pointer`	20140703	20140622
18840	`opt`	`gcc -funroll-loops -m64 -march=nocona -Os -fomit-frame-pointer`	20140703	20140622
18885	`opt`	`gcc -funroll-loops -m64 -march=nocona -O3 -fomit-frame-pointer`	20140703	20140622
19028	`opt`	`gcc -funroll-loops -march=nocona -O3 -fomit-frame-pointer`	20140703	20140622
19065	`opt`	`gcc -funroll-loops -march=k8 -Os -fomit-frame-pointer`	20140703	20140622
19080	`opt`	`gcc -funroll-loops -m64 -Os -fomit-frame-pointer`	20140703	20140622
19095	`opt`	`gcc -funroll-loops -fno-schedule-insns -Os -fomit-frame-pointer`	20140703	20140622
19117	`opt`	`gcc -funroll-loops -Os -fomit-frame-pointer`	20140703	20140622
19125	`opt`	`gcc -funroll-loops -m64 -march=k8 -Os -fomit-frame-pointer`	20140703	20140622
19283	`opt`	`gcc -funroll-loops -m64 -march=barcelona -Os -fomit-frame-pointer`	20140703	20140622
19582	`opt`	`gcc -funroll-loops -march=barcelona -Os -fomit-frame-pointer`	20140703	20140622
19725	`opt`	`gcc -fno-schedule-insns -Os -fomit-frame-pointer`	20140703	20140622
19725	`opt`	`gcc -m64 -march=k8 -Os -fomit-frame-pointer`	20140703	20140622
19755	`opt`	`gcc -march=k8 -Os -fomit-frame-pointer`	20140703	20140622
19778	`opt`	`gcc -march=barcelona -Os -fomit-frame-pointer`	20140703	20140622
19815	`opt`	`gcc -m64 -Os -fomit-frame-pointer`	20140703	20140622
19852	`opt`	`gcc -Os -fomit-frame-pointer`	20140703	20140622
19852	`opt`	`gcc -m64 -march=barcelona -Os -fomit-frame-pointer`	20140703	20140622
20100	`opt`	`gcc -m64 -march=nocona -O2 -fomit-frame-pointer`	20140703	20140622
20108	`opt`	`gcc -march=nocona -O2 -fomit-frame-pointer`	20140703	20140622
20152	`opt`	`gcc -funroll-loops -march=nocona -O2 -fomit-frame-pointer`	20140703	20140622
20160	`opt`	`gcc -funroll-loops -m64 -march=nocona -O2 -fomit-frame-pointer`	20140703	20140622
20347	`opt`	`gcc -funroll-loops -m64 -march=barcelona -O3 -fomit-frame-pointer`	20140703	20140622
20393	`opt`	`gcc -funroll-loops -march=barcelona -O3 -fomit-frame-pointer`	20140703	20140622
20468	`opt`	`gcc -funroll-loops -m64 -O3 -fomit-frame-pointer`	20140703	20140622
20498	`opt`	`gcc -funroll-loops -O3 -fomit-frame-pointer`	20140703	20140622
20647	`opt`	`gcc -funroll-loops -m64 -march=k8 -O3 -fomit-frame-pointer`	20140703	20140622
20647	`opt`	`gcc -funroll-loops -march=k8 -O3 -fomit-frame-pointer`	20140703	20140622
20707	`opt`	`gcc -O3 -fomit-frame-pointer`	20140703	20140622
20723	`opt`	`gcc -m64 -march=barcelona -O3 -fomit-frame-pointer`	20140703	20140622
20842	`opt`	`gcc -march=barcelona -O3 -fomit-frame-pointer`	20140703	20140622
20873	`opt`	`gcc -funroll-loops -fno-schedule-insns -O3 -fomit-frame-pointer`	20140703	20140622
20932	`opt`	`gcc -fno-schedule-insns -O3 -fomit-frame-pointer`	20140703	20140622
20940	`opt`	`gcc -m64 -O3 -fomit-frame-pointer`	20140703	20140622
21045	`opt`	`gcc -march=barcelona -O2 -fomit-frame-pointer`	20140703	20140622
21120	`opt`	`gcc -m64 -march=barcelona -O2 -fomit-frame-pointer`	20140703	20140622
21300	`opt`	`gcc -m64 -march=core2 -O3 -fomit-frame-pointer`	20140703	20140622
21307	`opt`	`gcc -funroll-loops -march=k8 -O2 -fomit-frame-pointer`	20140703	20140622
21322	`opt`	`gcc -m64 -march=core2 -msse4.1 -O3 -fomit-frame-pointer`	20140703	20140622
21360	`opt`	`gcc -funroll-loops -m64 -march=k8 -O2 -fomit-frame-pointer`	20140703	20140622
21368	`opt`	`gcc -march=k8 -O3 -fomit-frame-pointer`	20140703	20140622
21390	`opt`	`gcc -m64 -march=native -mtune=native -O3 -fomit-frame-pointer`	20140703	20140622
21405	`opt`	`gcc -m64 -march=core2 -msse4 -O3 -fomit-frame-pointer`	20140703	20140622
21412	`opt`	`gcc -m64 -march=k8 -O3 -fomit-frame-pointer`	20140703	20140622
21540	`opt`	`gcc -m64 -march=core2 -msse4 -O2 -fomit-frame-pointer`	20140703	20140622
21578	`opt`	`gcc -m64 -march=core2 -msse4.1 -O2 -fomit-frame-pointer`	20140703	20140622
21600	`opt`	`gcc -funroll-loops -march=barcelona -O2 -fomit-frame-pointer`	20140703	20140622
21607	`opt`	`gcc -funroll-loops -m64 -march=barcelona -O2 -fomit-frame-pointer`	20140703	20140622
21758	`opt`	`gcc -march=k8 -O2 -fomit-frame-pointer`	20140703	20140622
21765	`opt`	`gcc -m64 -march=k8 -O2 -fomit-frame-pointer`	20140703	20140622
21855	`opt`	`gcc -m64 -march=core2 -O2 -fomit-frame-pointer`	20140703	20140622
21960	`opt`	`gcc -m64 -march=native -mtune=native -O2 -fomit-frame-pointer`	20140703	20140622
22050	`opt`	`gcc -funroll-loops -O2 -fomit-frame-pointer`	20140703	20140622
22080	`opt`	`gcc -funroll-loops -m64 -O2 -fomit-frame-pointer`	20140703	20140622
22208	`opt`	`gcc -funroll-loops -fno-schedule-insns -O2 -fomit-frame-pointer`	20140703	20140622
22283	`opt`	`gcc -fno-schedule-insns -O2 -fomit-frame-pointer`	20140703	20140622
22447	`opt`	`gcc -O2 -fomit-frame-pointer`	20140703	20140622
22477	`opt`	`gcc -m64 -O2 -fomit-frame-pointer`	20140703	20140622
68828	`opt`	`gcc -funroll-loops`	20140703	20140622
68918	`opt`	`cc`	20140703	20140622
69075	`opt`	`gcc`	20140703	20140622

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