http://gcc.gnu.org/bugzilla/show_bug.cgi?id=53242
--- Comment #3 from Andrew Pinski <pinskia at gcc dot gnu.org> 2012-05-05 00:54:49 UTC --- (In reply to comment #2) > Thanks Andrew, > > In fact, the indices are incorrect. I screwed up because I forgot to update > the > calculation of the mask. Next time, please try to debug it using gdb before filing a bug report.