Implementation notes: amd64, enigma, crypto_hash/skein256256

Computer: enigma
Architecture: amd64
CPU ID: GenuineIntel-000006fb-bfebfbff
SUPERCOP version: 20140529
Operation: crypto_hash
Primitive: skein256256

Time	Implementation	Compiler	Benchmark date	SUPERCOP version
12492	`opt`	`gcc -m64 -march=core2 -msse4.1 -O2 -fomit-frame-pointer`	20140531	20140529
12582	`opt`	`gcc -m64 -march=native -mtune=native -O2 -fomit-frame-pointer`	20140531	20140529
12600	`opt`	`gcc -m64 -march=core2 -msse4 -O3 -fomit-frame-pointer`	20140531	20140529
12600	`opt`	`gcc -m64 -march=native -mtune=native -O3 -fomit-frame-pointer`	20140531	20140529
12609	`opt`	`gcc -m64 -march=core2 -O2 -fomit-frame-pointer`	20140531	20140529
12636	`opt`	`gcc -m64 -march=core2 -O3 -fomit-frame-pointer`	20140531	20140529
12690	`opt`	`gcc -funroll-loops -O2 -fomit-frame-pointer`	20140531	20140529
12726	`opt`	`gcc -m64 -O3 -fomit-frame-pointer`	20140531	20140529
12726	`opt`	`gcc -m64 -march=barcelona -O3 -fomit-frame-pointer`	20140531	20140529
12744	`opt`	`gcc -funroll-loops -m64 -O3 -fomit-frame-pointer`	20140531	20140529
12762	`opt`	`gcc -fno-schedule-insns -O2 -fomit-frame-pointer`	20140531	20140529
12762	`opt`	`gcc -funroll-loops -march=barcelona -O3 -fomit-frame-pointer`	20140531	20140529
12771	`opt`	`gcc -funroll-loops -fno-schedule-insns -O3 -fomit-frame-pointer`	20140531	20140529
12771	`opt`	`gcc -funroll-loops -m64 -O2 -fomit-frame-pointer`	20140531	20140529
12771	`opt`	`gcc -funroll-loops -march=barcelona -O2 -fomit-frame-pointer`	20140531	20140529
12771	`opt`	`gcc -march=k8 -O3 -fomit-frame-pointer`	20140531	20140529
12780	`opt`	`gcc -m64 -march=barcelona -O2 -fomit-frame-pointer`	20140531	20140529
12780	`opt`	`gcc -m64 -march=barcelona -O3 -fomit-frame-pointer`	20140531	20140529
12780	`opt`	`gcc -m64 -march=k8 -O3 -fomit-frame-pointer`	20140531	20140529
12789	`opt`	`gcc -funroll-loops -m64 -march=k8 -O2 -fomit-frame-pointer`	20140531	20140529
12789	`opt`	`gcc -m64 -march=core2 -msse4.1 -O3 -fomit-frame-pointer`	20140531	20140529
12798	`opt`	`gcc -funroll-loops -march=k8 -O3 -fomit-frame-pointer`	20140531	20140529
12807	`opt`	`gcc -funroll-loops -m64 -march=barcelona -O3 -fomit-frame-pointer`	20140531	20140529
12807	`opt`	`gcc -m64 -march=barcelona -O2 -fomit-frame-pointer`	20140531	20140529
12807	`opt`	`gcc -march=nocona -O3 -fomit-frame-pointer`	20140531	20140529
12816	`opt`	`gcc -m64 -march=core2 -msse4 -O2 -fomit-frame-pointer`	20140531	20140529
12816	`opt`	`gcc -march=barcelona -O2 -fomit-frame-pointer`	20140531	20140529
12816	`opt`	`gcc -march=barcelona -O3 -fomit-frame-pointer`	20140531	20140529
12825	`opt`	`gcc -funroll-loops -O3 -fomit-frame-pointer`	20140531	20140529
12825	`opt`	`gcc -march=k8 -O2 -fomit-frame-pointer`	20140531	20140529
12834	`opt`	`gcc -funroll-loops -fno-schedule-insns -O2 -fomit-frame-pointer`	20140531	20140529
12834	`opt`	`gcc -funroll-loops -m64 -march=nocona -O3 -fomit-frame-pointer`	20140531	20140529
12861	`opt`	`gcc -m64 -march=nocona -O3 -fomit-frame-pointer`	20140531	20140529
12870	`opt`	`gcc -funroll-loops -march=k8 -O2 -fomit-frame-pointer`	20140531	20140529
12870	`opt`	`gcc -funroll-loops -march=nocona -O3 -fomit-frame-pointer`	20140531	20140529
12879	`opt`	`gcc -O2 -fomit-frame-pointer`	20140531	20140529
12879	`opt`	`gcc -m64 -march=k8 -O2 -fomit-frame-pointer`	20140531	20140529
12888	`opt`	`gcc -fno-schedule-insns -O3 -fomit-frame-pointer`	20140531	20140529
12897	`opt`	`gcc -funroll-loops -m64 -march=barcelona -O2 -fomit-frame-pointer`	20140531	20140529
12897	`opt`	`gcc -funroll-loops -m64 -march=nocona -O2 -fomit-frame-pointer`	20140531	20140529
12906	`opt`	`gcc -funroll-loops -march=nocona -O2 -fomit-frame-pointer`	20140531	20140529
12906	`opt`	`gcc -m64 -O2 -fomit-frame-pointer`	20140531	20140529
12924	`opt`	`gcc -m64 -march=nocona -O2 -fomit-frame-pointer`	20140531	20140529
12924	`opt`	`gcc -march=nocona -O2 -fomit-frame-pointer`	20140531	20140529
12942	`opt`	`gcc -O3 -fomit-frame-pointer`	20140531	20140529
12942	`opt`	`gcc -funroll-loops -m64 -march=k8 -O3 -fomit-frame-pointer`	20140531	20140529
13131	`x64`	`gcc -funroll-loops -fno-schedule-insns -O2 -fomit-frame-pointer`	20140531	20140529
13131	`x64`	`gcc -funroll-loops -m64 -march=k8 -O2 -fomit-frame-pointer`	20140531	20140529
13131	`x64`	`gcc -m64 -march=barcelona -O2 -fomit-frame-pointer`	20140531	20140529
13131	`x64`	`gcc -march=barcelona -O2 -fomit-frame-pointer`	20140531	20140529
13140	`x64`	`gcc -O2 -fomit-frame-pointer`	20140531	20140529
13140	`x64`	`gcc -fno-schedule-insns -O3 -fomit-frame-pointer`	20140531	20140529
13140	`x64`	`gcc -funroll-loops -m64 -march=barcelona -O3 -fomit-frame-pointer`	20140531	20140529
13140	`x64`	`gcc -funroll-loops -march=barcelona -O3 -fomit-frame-pointer`	20140531	20140529
13140	`x64`	`gcc -funroll-loops -march=k8 -O2 -fomit-frame-pointer`	20140531	20140529
13140	`x64`	`gcc -m64 -O2 -fomit-frame-pointer`	20140531	20140529
13140	`x64`	`gcc -m64 -O3 -fomit-frame-pointer`	20140531	20140529
13140	`x64`	`gcc -m64 -march=core2 -O3 -fomit-frame-pointer`	20140531	20140529
13140	`x64`	`gcc -m64 -march=core2 -msse4.1 -O3 -fomit-frame-pointer`	20140531	20140529
13140	`x64`	`gcc -m64 -march=native -mtune=native -O3 -fomit-frame-pointer`	20140531	20140529
13140	`x64`	`gcc -m64 -march=nocona -O3 -fomit-frame-pointer`	20140531	20140529
13140	`x64`	`gcc -march=barcelona -O3 -fomit-frame-pointer`	20140531	20140529
13140	`x64`	`gcc -march=k8 -O3 -fomit-frame-pointer`	20140531	20140529
13149	`x64`	`gcc -O -fomit-frame-pointer`	20140531	20140529
13149	`x64`	`gcc -funroll-loops -m64 -O3 -fomit-frame-pointer`	20140531	20140529
13149	`x64`	`gcc -funroll-loops -march=barcelona -O2 -fomit-frame-pointer`	20140531	20140529
13149	`x64`	`gcc -m64 -march=barcelona -O2 -fomit-frame-pointer`	20140531	20140529
13149	`x64`	`gcc -m64 -march=barcelona -O3 -fomit-frame-pointer`	20140531	20140529
13149	`x64`	`gcc -m64 -march=core2 -msse4 -O3 -fomit-frame-pointer`	20140531	20140529
13149	`x64`	`gcc -march=nocona -O3 -fomit-frame-pointer`	20140531	20140529
13158	`x64`	`gcc -O3 -fomit-frame-pointer`	20140531	20140529
13158	`x64`	`gcc -fno-schedule-insns -O2 -fomit-frame-pointer`	20140531	20140529
13158	`x64`	`gcc -funroll-loops -O3 -fomit-frame-pointer`	20140531	20140529
13158	`x64`	`gcc -funroll-loops -fno-schedule-insns -O3 -fomit-frame-pointer`	20140531	20140529
13158	`x64`	`gcc -funroll-loops -m64 -O2 -fomit-frame-pointer`	20140531	20140529
13158	`x64`	`gcc -funroll-loops -m64 -march=nocona -O2 -fomit-frame-pointer`	20140531	20140529
13158	`x64`	`gcc -funroll-loops -march=k8 -O3 -fomit-frame-pointer`	20140531	20140529
13158	`x64`	`gcc -funroll-loops -march=nocona -O2 -fomit-frame-pointer`	20140531	20140529
13158	`x64`	`gcc -m64 -march=core2 -O2 -fomit-frame-pointer`	20140531	20140529
13158	`x64`	`gcc -m64 -march=core2 -O -fomit-frame-pointer`	20140531	20140529
13158	`x64`	`gcc -m64 -march=core2 -msse4 -O2 -fomit-frame-pointer`	20140531	20140529
13158	`x64`	`gcc -m64 -march=core2 -msse4 -O -fomit-frame-pointer`	20140531	20140529
13158	`x64`	`gcc -m64 -march=k8 -O2 -fomit-frame-pointer`	20140531	20140529
13158	`x64`	`gcc -m64 -march=native -mtune=native -O2 -fomit-frame-pointer`	20140531	20140529
13158	`x64`	`gcc -march=nocona -O2 -fomit-frame-pointer`	20140531	20140529
13167	`x64`	`gcc -funroll-loops -O2 -fomit-frame-pointer`	20140531	20140529
13167	`x64`	`gcc -funroll-loops -m64 -march=barcelona -O -fomit-frame-pointer`	20140531	20140529
13167	`x64`	`gcc -funroll-loops -m64 -march=k8 -O3 -fomit-frame-pointer`	20140531	20140529
13167	`x64`	`gcc -funroll-loops -m64 -march=nocona -O3 -fomit-frame-pointer`	20140531	20140529
13167	`x64`	`gcc -funroll-loops -march=nocona -O -fomit-frame-pointer`	20140531	20140529
13167	`x64`	`gcc -m64 -march=barcelona -O3 -fomit-frame-pointer`	20140531	20140529
13167	`x64`	`gcc -m64 -march=core2 -msse4.1 -O2 -fomit-frame-pointer`	20140531	20140529
13167	`x64`	`gcc -m64 -march=nocona -O2 -fomit-frame-pointer`	20140531	20140529
13167	`x64`	`gcc -march=barcelona -O -fomit-frame-pointer`	20140531	20140529
13167	`x64`	`gcc -march=nocona -O -fomit-frame-pointer`	20140531	20140529
13176	`x64`	`gcc -funroll-loops -fno-schedule-insns -O -fomit-frame-pointer`	20140531	20140529
13176	`x64`	`gcc -funroll-loops -m64 -O -fomit-frame-pointer`	20140531	20140529
13176	`x64`	`gcc -funroll-loops -m64 -march=barcelona -O2 -fomit-frame-pointer`	20140531	20140529
13176	`x64`	`gcc -funroll-loops -m64 -march=k8 -O -fomit-frame-pointer`	20140531	20140529
13176	`x64`	`gcc -funroll-loops -march=barcelona -O -fomit-frame-pointer`	20140531	20140529
13176	`x64`	`gcc -funroll-loops -march=k8 -O -fomit-frame-pointer`	20140531	20140529
13176	`x64`	`gcc -m64 -O -fomit-frame-pointer`	20140531	20140529
13176	`x64`	`gcc -m64 -march=barcelona -O -fomit-frame-pointer`	20140531	20140529
13176	`x64`	`gcc -m64 -march=core2 -msse4.1 -O -fomit-frame-pointer`	20140531	20140529
13176	`x64`	`gcc -m64 -march=k8 -O3 -fomit-frame-pointer`	20140531	20140529
13176	`x64`	`gcc -m64 -march=nocona -O -fomit-frame-pointer`	20140531	20140529
13176	`x64`	`gcc -march=k8 -O -fomit-frame-pointer`	20140531	20140529
13185	`x64`	`gcc -fno-schedule-insns -O -fomit-frame-pointer`	20140531	20140529
13185	`x64`	`gcc -funroll-loops -O -fomit-frame-pointer`	20140531	20140529
13185	`x64`	`gcc -funroll-loops -m64 -march=nocona -O -fomit-frame-pointer`	20140531	20140529
13185	`x64`	`gcc -funroll-loops -march=nocona -O3 -fomit-frame-pointer`	20140531	20140529
13185	`x64`	`gcc -march=k8 -O2 -fomit-frame-pointer`	20140531	20140529
13194	`x64`	`gcc -m64 -march=native -mtune=native -O -fomit-frame-pointer`	20140531	20140529
13203	`x64`	`gcc -m64 -march=k8 -O -fomit-frame-pointer`	20140531	20140529
13230	`x64`	`cc`	20140531	20140529
13230	`x64`	`gcc`	20140531	20140529
13230	`x64`	`gcc -funroll-loops`	20140531	20140529
13410	`x64`	`gcc -Os -fomit-frame-pointer`	20140531	20140529
13419	`x64`	`gcc -funroll-loops -m64 -march=nocona -Os -fomit-frame-pointer`	20140531	20140529
13428	`x64`	`gcc -m64 -march=core2 -Os -fomit-frame-pointer`	20140531	20140529
13428	`x64`	`gcc -m64 -march=core2 -msse4.1 -Os -fomit-frame-pointer`	20140531	20140529
13437	`x64`	`gcc -fno-schedule-insns -Os -fomit-frame-pointer`	20140531	20140529
13437	`x64`	`gcc -funroll-loops -Os -fomit-frame-pointer`	20140531	20140529
13437	`x64`	`gcc -funroll-loops -fno-schedule-insns -Os -fomit-frame-pointer`	20140531	20140529
13437	`x64`	`gcc -funroll-loops -m64 -march=k8 -Os -fomit-frame-pointer`	20140531	20140529
13437	`x64`	`gcc -m64 -Os -fomit-frame-pointer`	20140531	20140529
13437	`x64`	`gcc -m64 -march=barcelona -Os -fomit-frame-pointer`	20140531	20140529
13437	`x64`	`gcc -m64 -march=k8 -Os -fomit-frame-pointer`	20140531	20140529
13437	`x64`	`gcc -march=barcelona -Os -fomit-frame-pointer`	20140531	20140529
13446	`x64`	`gcc -m64 -march=barcelona -Os -fomit-frame-pointer`	20140531	20140529
13446	`x64`	`gcc -m64 -march=core2 -msse4 -Os -fomit-frame-pointer`	20140531	20140529
13446	`x64`	`gcc -m64 -march=nocona -Os -fomit-frame-pointer`	20140531	20140529
13446	`x64`	`gcc -march=nocona -Os -fomit-frame-pointer`	20140531	20140529
13455	`x64`	`gcc -funroll-loops -m64 -Os -fomit-frame-pointer`	20140531	20140529
13455	`x64`	`gcc -funroll-loops -march=barcelona -Os -fomit-frame-pointer`	20140531	20140529
13455	`x64`	`gcc -funroll-loops -march=k8 -Os -fomit-frame-pointer`	20140531	20140529
13455	`x64`	`gcc -funroll-loops -march=nocona -Os -fomit-frame-pointer`	20140531	20140529
13455	`x64`	`gcc -m64 -march=native -mtune=native -Os -fomit-frame-pointer`	20140531	20140529
13464	`x64`	`gcc -funroll-loops -m64 -march=barcelona -Os -fomit-frame-pointer`	20140531	20140529
13464	`x64`	`gcc -march=k8 -Os -fomit-frame-pointer`	20140531	20140529
13491	`opt`	`gcc -m64 -march=core2 -msse4 -O -fomit-frame-pointer`	20140531	20140529
13500	`opt`	`gcc -m64 -O -fomit-frame-pointer`	20140531	20140529
13500	`opt`	`gcc -m64 -march=core2 -msse4.1 -O -fomit-frame-pointer`	20140531	20140529
13509	`opt`	`gcc -funroll-loops -m64 -march=k8 -O -fomit-frame-pointer`	20140531	20140529
13509	`opt`	`gcc -march=k8 -O -fomit-frame-pointer`	20140531	20140529
13518	`opt`	`gcc -funroll-loops -O -fomit-frame-pointer`	20140531	20140529
13518	`opt`	`gcc -funroll-loops -fno-schedule-insns -O -fomit-frame-pointer`	20140531	20140529
13518	`opt`	`gcc -funroll-loops -m64 -O -fomit-frame-pointer`	20140531	20140529
13518	`opt`	`gcc -m64 -march=k8 -O -fomit-frame-pointer`	20140531	20140529
13527	`opt`	`gcc -funroll-loops -m64 -march=barcelona -O -fomit-frame-pointer`	20140531	20140529
13527	`opt`	`gcc -funroll-loops -march=k8 -O -fomit-frame-pointer`	20140531	20140529
13536	`opt`	`gcc -O -fomit-frame-pointer`	20140531	20140529
13536	`opt`	`gcc -funroll-loops -m64 -march=nocona -O -fomit-frame-pointer`	20140531	20140529
13536	`opt`	`gcc -m64 -march=barcelona -O -fomit-frame-pointer`	20140531	20140529
13536	`opt`	`gcc -m64 -march=core2 -O -fomit-frame-pointer`	20140531	20140529
13536	`opt`	`gcc -m64 -march=nocona -O -fomit-frame-pointer`	20140531	20140529
13545	`opt`	`gcc -march=barcelona -O -fomit-frame-pointer`	20140531	20140529
13572	`opt`	`gcc -funroll-loops -march=barcelona -O -fomit-frame-pointer`	20140531	20140529
13572	`opt`	`gcc -funroll-loops -march=nocona -O -fomit-frame-pointer`	20140531	20140529
13590	`opt`	`gcc -fno-schedule-insns -O -fomit-frame-pointer`	20140531	20140529
13599	`opt`	`gcc -march=nocona -O -fomit-frame-pointer`	20140531	20140529
13608	`opt`	`gcc -m64 -march=native -mtune=native -O -fomit-frame-pointer`	20140531	20140529
14139	`opt`	`gcc -Os -fomit-frame-pointer`	20140531	20140529
14544	`opt`	`gcc -funroll-loops -m64 -march=barcelona -Os -fomit-frame-pointer`	20140531	20140529
14571	`opt`	`gcc -funroll-loops -march=barcelona -Os -fomit-frame-pointer`	20140531	20140529
14643	`opt`	`gcc -m64 -march=core2 -msse4.1 -Os -fomit-frame-pointer`	20140531	20140529
14643	`opt`	`gcc -m64 -march=core2 -msse4 -Os -fomit-frame-pointer`	20140531	20140529
14814	`opt`	`gcc -fno-schedule-insns -Os -fomit-frame-pointer`	20140531	20140529
14814	`opt`	`gcc -m64 -Os -fomit-frame-pointer`	20140531	20140529
14814	`opt`	`gcc -m64 -march=k8 -Os -fomit-frame-pointer`	20140531	20140529
14814	`opt`	`gcc -march=k8 -Os -fomit-frame-pointer`	20140531	20140529
14832	`opt`	`gcc -m64 -march=core2 -Os -fomit-frame-pointer`	20140531	20140529
14850	`opt`	`gcc -funroll-loops -Os -fomit-frame-pointer`	20140531	20140529
14904	`opt`	`gcc -funroll-loops -fno-schedule-insns -Os -fomit-frame-pointer`	20140531	20140529
14904	`opt`	`gcc -m64 -march=native -mtune=native -Os -fomit-frame-pointer`	20140531	20140529
14958	`opt`	`gcc -funroll-loops -march=k8 -Os -fomit-frame-pointer`	20140531	20140529
14967	`opt`	`gcc -m64 -march=barcelona -Os -fomit-frame-pointer`	20140531	20140529
14967	`opt`	`gcc -march=barcelona -Os -fomit-frame-pointer`	20140531	20140529
15057	`opt`	`gcc -funroll-loops -m64 -Os -fomit-frame-pointer`	20140531	20140529
15084	`opt`	`gcc -funroll-loops -m64 -march=k8 -Os -fomit-frame-pointer`	20140531	20140529
15129	`opt`	`gcc -funroll-loops -march=nocona -Os -fomit-frame-pointer`	20140531	20140529
15138	`opt`	`gcc -funroll-loops -m64 -march=nocona -Os -fomit-frame-pointer`	20140531	20140529
15138	`opt`	`gcc -march=nocona -Os -fomit-frame-pointer`	20140531	20140529
15147	`opt`	`gcc -m64 -march=nocona -Os -fomit-frame-pointer`	20140531	20140529
65205	`opt`	`gcc -funroll-loops`	20140531	20140529
65538	`opt`	`cc`	20140531	20140529
65556	`opt`	`gcc`	20140531	20140529

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