http://gcc.gnu.org/bugzilla/show_bug.cgi?id=50729
--- Comment #3 from Matthew Gretton-Dann <mgretton at sourceware dot org> 2011-10-14 13:49:50 UTC --- Created attachment 25500 --> http://gcc.gnu.org/bugzilla/attachment.cgi?id=25500 VRP1 Analysis and resultant tree