https://gcc.gnu.org/bugzilla/show_bug.cgi?id=106087
--- Comment #8 from Andrew Pinski <pinskia at gcc dot gnu.org> --- (In reply to Patrick Palka from comment #7) > The error_mark_node in question is the TREE_TYPE of an SSA_NAME, which was > set in tree-ssanames.cc:release_ssa_name_fn: > > 598 if it happens to come along a released SSA name and tries > 599 to inspect its type. */ > 600 TREE_TYPE (var) = error_mark_node; > 601 > 602 /* And finally queue it so that it will be put on the free > list. */ > 603 vec_safe_push (FREE_SSANAMES_QUEUE (fn), var); > 604 } > 605 } > 606 > 607 /* If the alignment of the pointer described by PI is known, return > true and Let me try to debug this but I suspect it is a latent bug somewhere else. Because the code just calls simple_dce_from_worklist which would be broken ...
