3424       enum { Ut, Btt, Btc, Bct, Cf64i, Ittt, Itct, Ittc, Itcc, GetIt,  enumerator
3432          } Ut;  member
3507       case Ut:   in eq_AvailExpr()
3509                 a1->u.Ut.op == a2->u.Ut.op   in eq_AvailExpr()
3510                 && a1->u.Ut.arg == a2->u.Ut.arg);  in eq_AvailExpr()
3580       case Ut:  in availExpr_to_IRExpr()
3581          return IRExpr_Unop( ae->u.Ut.op, IRExpr_RdTmp(ae->u.Ut.arg) );  in availExpr_to_IRExpr()
3674       case Ut:  in subst_AvailExpr()
3675          ae->u.Ut.arg = subst_AvailExpr_Temp( env, ae->u.Ut.arg );  in subst_AvailExpr()
3731             ae->tag      = Ut;  in irExpr_to_AvailExpr()
3732             ae->u.Ut.op  = e->Iex.Unop.op;  in irExpr_to_AvailExpr()
3733             ae->u.Ut.arg = e->Iex.Unop.arg->Iex.RdTmp.tmp;  in irExpr_to_AvailExpr()