------- Comment #4 from sje at cup dot hp dot com 2007-06-21 17:13 ------- With optimization, it looks like we die because df_insn_change_bb can handle insn_info being NULL but it can't handle insn_info->defs (or uses or eq_uses) being NULL and that is what is happening with -O2. When no optimization is being done then the failure looks different. I believe this is due to the dataflow merge.
-- http://gcc.gnu.org/bugzilla/show_bug.cgi?id=32370
