https://gcc.gnu.org/bugzilla/show_bug.cgi?id=65855
Richard Biener <rguenth at gcc dot gnu.org> changed: What |Removed |Added ---------------------------------------------------------------------------- CC| |ktietz at gcc dot gnu.org, | |rguenth at gcc dot gnu.org --- Comment #3 from Richard Biener <rguenth at gcc dot gnu.org> --- shorten_compare in the C frontend family performs the (long unsigned int) n_3(D) != 18446744073709551615 simplification. Nothing in fold-const.c or match.pd does.