tests/opt/opt_expr_cmp.ys - third_party/yosys - Git at Google

 read_verilog opt_expr_cmp.v
 equiv_opt -assert opt_expr -fine
 design -load postopt
 select -assert-count 0 t:$gt t:$ge t:$lt t:$le
	read_verilog opt_expr_cmp.v
	equiv_opt -assert opt_expr -fine
	design -load postopt
	select -assert-count 0 t:$gt t:$ge t:$lt t:$le