%Error-UNSUPPORTED: t/t_alias_unsup.v:76:35: Unsupported: Operand of alias statement is not a variable reference
                                           : ... note: In instance 't.test2'
   76 |   alias {a[7:0], a[15:8], a[23:16], a[31:24]} = b;
      |                                   ^
                    ... For error description see https://verilator.org/warn/UNSUPPORTED?v=latest
%Error: Exiting due to