https://gcc.gnu.org/bugzilla/show_bug.cgi?id=70181
Jakub Jelinek <jakub at gcc dot gnu.org> changed: What |Removed |Added ---------------------------------------------------------------------------- CC| |jakub at gcc dot gnu.org --- Comment #1 from Jakub Jelinek <jakub at gcc dot gnu.org> --- I think it is intentional, because it otherwise leads to way too many false positives. We don't warn for (0 == 0), that is very common, e.g. if the constants come from macros. And for constants it is the same thing.