[Bug target/21642] [3.4 Regression] wrong code with -O2

[pinskia at gcc dot gnu dot org]

-- 
           What    |Removed                     |Added
----------------------------------------------------------------------------
            Summary|wrong code with -O2         |[3.4 Regression] wrong code
                   |                            |with -O2
   Target Milestone|---                         |3.4.5


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=21642