http://gcc.gnu.org/bugzilla/show_bug.cgi?id=54400
Richard Guenther <rguenth at gcc dot gnu.org> changed: What |Removed |Added ---------------------------------------------------------------------------- Status|UNCONFIRMED |NEW Last reconfirmed| |2012-09-03 Component|target |middle-end Blocks| |53947 Ever Confirmed|0 |1 --- Comment #2 from Richard Guenther <rguenth at gcc dot gnu.org> 2012-09-03 10:12:36 UTC --- The basic-block vectorizer does not handle reductions and it would be another natural place to perform this optimization.