machxo2: Add passing fsm, mux, and shifter tests.

tests/arch/machxo2/fsm.ys

@@ -0,0 +1,15 @@
+read_verilog ../common/fsm.v
+hierarchy -top fsm
+proc
+flatten
+
+equiv_opt -run :prove -map +/machxo2/cells_sim.v synth_machxo2
+miter -equiv -make_assert -flatten gold gate miter
+sat -verify -prove-asserts -show-public -set-at 1 in_reset 1 -seq 20 -prove-skip 1 miter
+
+design -load postopt # load the post-opt design (otherwise equiv_opt loads the pre-opt design)
+cd fsm # Constrain all select calls below inside the top module
+
+select -assert-max 16 t:LUT4
+select -assert-count 6 t:FACADE_FF
+select -assert-none t:FACADE_FF t:LUT4 t:FACADE_IO %% t:* %D

tests/arch/machxo2/mux.ys

@@ -0,0 +1,40 @@
+read_verilog ../common/mux.v
+design -save read
+
+hierarchy -top mux2
+proc
+equiv_opt -assert -map +/machxo2/cells_sim.v synth_machxo2 # equivalency check
+design -load postopt # load the post-opt design (otherwise equiv_opt loads the pre-opt design)
+cd mux2 # Constrain all select calls below inside the top module
+select -assert-count 1 t:LUT4
+select -assert-none t:LUT4 t:FACADE_IO %% t:* %D
+
+design -load read
+hierarchy -top mux4
+proc
+equiv_opt -assert -map +/machxo2/cells_sim.v synth_machxo2 # equivalency check
+design -load postopt # load the post-opt design (otherwise equiv_opt loads the pre-opt design)
+cd mux4 # Constrain all select calls below inside the top module
+select -assert-count 2 t:LUT4
+
+select -assert-none t:LUT4 t:FACADE_IO %% t:* %D
+
+design -load read
+hierarchy -top mux8
+proc
+equiv_opt -assert -map +/machxo2/cells_sim.v synth_machxo2 # equivalency check
+design -load postopt # load the post-opt design (otherwise equiv_opt loads the pre-opt design)
+cd mux8 # Constrain all select calls below inside the top module
+select -assert-count 5 t:LUT4
+
+select -assert-none t:LUT4 t:FACADE_IO %% t:* %D
+
+design -load read
+hierarchy -top mux16
+proc
+equiv_opt -assert -map +/machxo2/cells_sim.v synth_machxo2 # equivalency check
+design -load postopt # load the post-opt design (otherwise equiv_opt loads the pre-opt design)
+cd mux16 # Constrain all select calls below inside the top module
+select -assert-count 12 t:LUT4
+
+select -assert-none t:LUT4 t:FACADE_IO %% t:* %D

tests/arch/machxo2/shifter.ys

@@ -0,0 +1,10 @@
+read_verilog ../common/shifter.v
+hierarchy -top top
+proc
+flatten
+equiv_opt -assert -map +/machxo2/cells_sim.v synth_machxo2 # 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 8 t:FACADE_FF
+select -assert-none t:FACADE_FF t:FACADE_IO %% t:* %D