https://gcc.gnu.org/bugzilla/show_bug.cgi?id=77430
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> --- Do we want to warn about this kind of stuff even if there are side-effects in the first rhs? Obviously we must not warn if the var is used in the second rhs, or if the var is volatile/atomic, or if assignment operator is overloaded. The question is where to warn, warning in the FE would have the advantage that the rhs's are still fairly non-optimized and thus possible uses of the var in them aren't optimized away yet.