------- Additional Comments From sebastian dot pop at cri dot ensmp dot fr 2004-10-08 13:49 ------- Subject: Re: [4.0 Regression] Infinite recursion in tree-scalar-evolution with -Os
> Could you check whether the edges are marked as irreducible? If not, this would > be the problem. > Indeed, both edges for the phi "i_2 = phi (i_4, i_1)" are not marked by EDGE_IRREDUCIBLE_LOOP, and consequently backedge_phi_arg_p returns always false. Same for the first edge i_1 -> i_2 of "i_1 = phi (i_2, i_7)" that is not marked as EDGE_IRREDUCIBLE_LOOP. -- http://gcc.gnu.org/bugzilla/show_bug.cgi?id=17560
