[Bug target/21389] optimized code seg faults due to double load on sparcV9

[drew dot johnson at andrew dot com]

-- 
           What    |Removed                     |Added
----------------------------------------------------------------------------
   Attachment #8820|compile with -O3 or higher, |compile with -O1 or higher,
        description|and execution generates seg-|and execution generates seg-
                   |fault                       |fault


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=21389