http://gcc.gnu.org/bugzilla/show_bug.cgi?id=60844
Jakub Jelinek <jakub at gcc dot gnu.org> changed: What |Removed |Added ---------------------------------------------------------------------------- Status|UNCONFIRMED |ASSIGNED Last reconfirmed| |2014-04-15 Assignee|unassigned at gcc dot gnu.org |jakub at gcc dot gnu.org Ever confirmed|0 |1 --- Comment #1 from Jakub Jelinek <jakub at gcc dot gnu.org> --- Created attachment 32601 --> http://gcc.gnu.org/bugzilla/attachment.cgi?id=32601&action=edit gcc49-pr60844.patch Untested fix. The problem is that gsi_remove performed during reassoc added some debug stmt and that debug stmt didn't get gimple_uid set, which the reassoc code relies on.