[Bug rtl-optimization/47258] Extra instruction generated in 4.5.2

[bmei at broadcom dot com]

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=47258

--- Comment #1 from Bingfeng Mei <bmei at broadcom dot com> 2011-01-11 13:38:13 
UTC ---
Created attachment 22944
  --> http://gcc.gnu.org/bugzilla/attachment.cgi?id=22944
Preprocessed test case