yosys/tests/ecp5/fsm.ys

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read_verilog fsm.v
hierarchy -top top
proc
flatten
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equiv_opt -assert -map +/ecp5/cells_sim.v synth_ecp5 # equivalency check
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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:L6MUX21
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select -assert-count 13 t:LUT4
select -assert-count 5 t:PFUMX
select -assert-count 5 t:TRELLIS_FF
select -assert-none t:L6MUX21 t:LUT4 t:PFUMX t:TRELLIS_FF %% t:* %D