------- Comment #1 from rguenth at gcc dot gnu dot org 2007-05-24 22:48 ------- VRP information is not preserved over optimization passes, so loop unrolling does not know about it. But VRP recognizes that count is <= 4.
-- rguenth at gcc dot gnu dot org changed: What |Removed |Added ---------------------------------------------------------------------------- CC| |rguenth at gcc dot gnu dot | |org, rakdver at gcc dot gnu | |dot org Status|UNCONFIRMED |NEW Component|c++ |tree-optimization Ever Confirmed|0 |1 Keywords| |missed-optimization Last reconfirmed|0000-00-00 00:00:00 |2007-05-24 22:48:10 date| | http://gcc.gnu.org/bugzilla/show_bug.cgi?id=32073