1 files changed, 35 insertions, 0 deletions
diff --git a/tests/arch/xilinx/latches.ys b/tests/arch/xilinx/latches.ys
new file mode 100644
index 000000000..3eb550a42
--- /dev/null
+++ b/tests/arch/xilinx/latches.ys
@@ -0,0 +1,35 @@
+read_verilog latches.v
+design -save read
+
+hierarchy -top latchp
+proc
+equiv_opt -async2sync -assert -map +/xilinx/cells_sim.v synth_xilinx # equivalency check
+design -load postopt # load the post-opt design (otherwise equiv_opt loads the pre-opt design)
+cd latchp # Constrain all select calls below inside the top module
+select -assert-count 1 t:LDCE
+
+select -assert-none t:LDCE %% t:* %D
+
+
+design -load read
+hierarchy -top latchn
+proc
+equiv_opt -async2sync -assert -map +/xilinx/cells_sim.v synth_xilinx # equivalency check
+design -load postopt # load the post-opt design (otherwise equiv_opt loads the pre-opt design)
+cd latchn # Constrain all select calls below inside the top module
+select -assert-count 1 t:LDCE
+select -assert-count 1 t:LUT1
+
+select -assert-none t:LDCE t:LUT1 %% t:* %D
+
+
+design -load read
+hierarchy -top latchsr
+proc
+equiv_opt -async2sync -assert -map +/xilinx/cells_sim.v synth_xilinx # equivalency check
+design -load postopt # load the post-opt design (otherwise equiv_opt loads the pre-opt design)
+cd latchsr # Constrain all select calls below inside the top module
+select -assert-count 1 t:LDCE
+select -assert-count 2 t:LUT3
+
+select -assert-none t:LDCE t:LUT3 %% t:* %D