https://gcc.gnu.org/bugzilla/show_bug.cgi?id=65779
--- Comment #4 from Alan Modra <amodra at gmail dot com> --- Created attachment 35342 --> https://gcc.gnu.org/bugzilla/attachment.cgi?id=35342&action=edit prototype patch This seems to cure the testcase. I haven't bootstrapped it, and it probably isn't ideal since I haven't poked at debug insns a lot.. Still, it points out where the problem is, in move_insn_for_shrink_wrap. --- Comment #5 from Alan Modra <amodra at gmail dot com> --- Hmm, the bootstrap didn't get very far. Seems I need a df_insn_rescan_debug_internal (dinsn); after setting INSN_VAR_LOCATION_LOC. Maybe the debug insn in this case can be deleted?
