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+read_verilog mul.v
+hierarchy -top top
+proc
+# Blocked by issue #1358 (Missing ECP5 simulation models)
+#equiv_opt -assert -map +/ecp5/cells_sim.v synth_ecp5 # equivalency check
+equiv_opt -map +/ecp5/cells_sim.v synth_ecp5 # equivalency check
+
+design -load postopt # load the post-opt design (otherwise equiv_opt loads the pre-opt design)
+cd top # Constrain all select calls below inside the top module
+select -assert-count 1 t:MULT18X18D
+select -assert-none t:MULT18X18D %% t:* %D