https://gcc.gnu.org/bugzilla/show_bug.cgi?id=113163
--- Comment #6 from Tobias Burnus <burnus at gcc dot gnu.org> --- and for that condition, we have: 3375 if (!integer_onep (*step_vector)) (gdb) p debug_tree(*step_vector) <integer_cst 0x7ffff7bb2f48 type <integer_type 0x7ffff7b5e3f0> constant 8>