1 files changed, 50 insertions, 0 deletions
diff --git a/tests/arch/gowin/mux.ys b/tests/arch/gowin/mux.ys
new file mode 100644
index 000000000..c9c85019b
--- /dev/null
+++ b/tests/arch/gowin/mux.ys
@@ -0,0 +1,50 @@
+read_verilog ../common/mux.v
+design -save read
+
+hierarchy -top mux2
+proc
+equiv_opt -assert -map +/gowin/cells_sim.v synth_gowin # 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:LUT3
+select -assert-count 3 t:IBUF
+select -assert-count 1 t:OBUF
+
+select -assert-none t:LUT3 t:IBUF t:OBUF %% t:* %D
+
+design -load read
+hierarchy -top mux4
+proc
+equiv_opt -assert -map +/gowin/cells_sim.v synth_gowin # 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-count 6 t:IBUF
+select -assert-count 1 t:OBUF
+
+select -assert-none t:LUT4 t:IBUF t:OBUF %% t:* %D
+
+design -load read
+hierarchy -top mux8
+proc
+equiv_opt -assert -map +/gowin/cells_sim.v synth_gowin # 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-count 11 t:IBUF
+select -assert-count 1 t:OBUF
+
+select -assert-none t:LUT4 t:IBUF t:OBUF %% t:* %D
+
+design -load read
+hierarchy -top mux16
+proc
+equiv_opt -assert -map +/gowin/cells_sim.v synth_gowin # 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 9 t:LUT4
+select -assert-count 3 t:LUT3
+select -assert-count 20 t:IBUF
+select -assert-count 1 t:OBUF
+
+select -assert-none t:LUT4 t:LUT3 t:IBUF t:OBUF %% t:* %D