1 files changed, 20 insertions, 0 deletions
diff --git a/testsuite/synth/dff01/dff15.vhdl b/testsuite/synth/dff01/dff15.vhdl
new file mode 100644
index 000000000..258c263c1
--- /dev/null
+++ b/testsuite/synth/dff01/dff15.vhdl
@@ -0,0 +1,20 @@
+library ieee;
+use ieee.std_logic_1164.all;
+
+entity dff15 is
+  port (q : out std_logic;
+        d : std_logic;
+        clk : std_logic);
+end dff15;
+
+architecture behav of dff15 is
+begin
+  process (clk) is
+    variable m : std_logic;
+  begin
+    if rising_edge (clk) then
+      m := d;
+    end if;
+    q <= not m;
+  end process;
+end behav;