1 files changed, 21 insertions, 0 deletions
diff --git a/tests/simple/hierarchy.v b/tests/simple/hierarchy.v
new file mode 100644
index 000000000..97612c74a
--- /dev/null
+++ b/tests/simple/hierarchy.v
@@ -0,0 +1,21 @@
+
+(* top *)
+module top(a, b, y1, y2, y3, y4);
+input [3:0] a;
+input signed [3:0] b;
+output [7:0] y1, y2, y3, y4;
+submod #(-3'sd1, -3'sd1) foo (a, b, y1, y2, y3, y4);
+endmodule
+
+(* gentb_skip *)
+module submod(a, b, y1, y2, y3, y4);
+parameter c = 0;
+parameter [7:0] d = 0;
+input [7:0] a, b;
+output [7:0] y1, y2, y3, y4;
+assign y1 = a;
+assign y2 = b;
+assign y3 = c;
+assign y4 = d;
+endmodule
+