https://gcc.gnu.org/bugzilla/show_bug.cgi?id=125316
--- Comment #1 from Drea Pinski <pinskia at gcc dot gnu.org> ---
FOR_EACH_SSA_TREE_OPERAND (op, stmt, iter, SSA_OP_DEF)
bitmap_set_bit (set_ssa_names, SSA_NAME_VERSION (op));
This could mean someone forgot to do update_stmt.
