[Bug tree-optimization/57122] [4.9 Regression] ICE in verify_loop_structure, at cfgloop.c:1647 (loop n’s latch does not have an edge to its header !)

[mpolacek at gcc dot gnu.org]

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=57122



--- Comment #3 from Marek Polacek <mpolacek at gcc dot gnu.org> 2013-04-30 
12:05:15 UTC ---

Started with http://gcc.gnu.org/viewcvs/gcc?view=revision&revision=198333 aka

loops preservation patch.