https://gcc.gnu.org/bugzilla/show_bug.cgi?id=87859
--- Comment #8 from Martin Liška <marxin at gcc dot gnu.org> --- > Now that I think about it, I think I could fix this differently by adding a > flag to the store structures that it has been merged already, but I'll > postpone that to next week, need to work on stage1 stuff this week. Do you mean a flag that will enable to dump how a merge to struct looks like before and after store merging. Btw. do you also have a debug counter for store merging? If not, I would consider adding one.