1 files changed, 15 insertions, 0 deletions
diff --git a/tests/opt/opt_ff_sat.v b/tests/opt/opt_ff_sat.v
new file mode 100644
index 000000000..fc1e61980
--- /dev/null
+++ b/tests/opt/opt_ff_sat.v
@@ -0,0 +1,15 @@
+module top(
+					 input 	clk,
+					 input 	a,
+					 output b
+					 );
+  reg 						b_reg;
+  initial begin
+    b_reg <= 0;
+  end
+
+  assign b = b_reg;
+  always @(posedge clk) begin
+    b_reg <= a && b_reg;
+  end
+endmodule