https://gcc.gnu.org/bugzilla/show_bug.cgi?id=63891
--- Comment #3 from Francois-Xavier Coudert <fxcoudert at gcc dot gnu.org> --- This same bug may also be the root for: FAIL: gcc.dg/torture/builtin-self.c -O0 scan-assembler-not \\tcall which is also a 5.0 regression, due to the extra "call ___x86.get_pc_thunk.ax". Dominique, could you check whether both appeared at the same time?