[Bug c/18620] double data reversal

[zhangyijin_2008 at 163 dot com]

-- 
           What    |Removed                     |Added
----------------------------------------------------------------------------
          Component|target                      |c
 GCC target triplet|arm-9tdmi-linux-gnu         |ep9312


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=18620