[Bug tree-optimization/106126] [12 Regression] tree check fail in useless_type_conversion_p, at gimple-expr.cc:87 since r13-1184-g57424087e82db140

[luoxhu at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=106126

--- Comment #12 from luoxhu at gcc dot gnu.org ---
conditions_in_bbs->is_empty doesn't mean that range is at the start of switch
condition:(, so couldn't assume to ignore the no_side_effect_bb check?