https://gcc.gnu.org/bugzilla/show_bug.cgi?id=103437
--- Comment #5 from Vladimir Makarov <vmakarov at gcc dot gnu.org> --- Thank you for reporting this. This problem seems not that important as it is only about heuristic costs and might be result only in worse performance code generation (but might be in better code -- it is hard to say). Still it is better not to remove this warning. I'll look into this.