e4_2Enabled :: DynFlags -> Bool
isSse4_2Enabled dflags = sseVersion dflags >= Just (4,2)

is
isSse4_2Enabled :: DynFlags -> Bool
isSse4_2Enabled dflags = sseVersion dflags >= Just (4,2)
isSse4_2Enabled dflags = sseVersion dflags >= Just (4,2)