endian little
unaligned ok
x86-64
x86_64 # for RPM
em64t
x64
k8
k10
nocona
core2
nehalem
westmere
core2duo -> core2
intelcore2 -> core2
intelcore2duo -> core2
sledgehammer -> k8
opteron -> k8
amdopteron -> k8
athlon64 -> k8
barcelona -> k10
sse2:all
ssse3:core2,nehalem,westmere
aes_ni:westmere