https://gcc.gnu.org/bugzilla/show_bug.cgi?id=111221
Xi Ruoyao <xry111 at gcc dot gnu.org> changed: What |Removed |Added ---------------------------------------------------------------------------- CC| |xry111 at gcc dot gnu.org --- Comment #3 from Xi Ruoyao <xry111 at gcc dot gnu.org> --- FWIW if you want "add0" to be optimized use -fno-signed-zeros.