testsuite/synth: add more tests for #1122

1 files changed, 27 insertions, 0 deletions

diff --git a/testsuite/synth/dff02/dff08c.vhdl b/testsuite/synth/dff02/dff08c.vhdl
new file mode 100644
index 000000000..70626168c
--- /dev/null
+++ b/testsuite/synth/dff02/dff08c.vhdl
@@ -0,0 +1,27 @@
+library ieee;
+use ieee.std_logic_1164.all;
+
+entity dff08c is
+  port (q : out std_logic_vector(7 downto 0);
+        d : std_logic_vector(7 downto 0);
+        clk : std_logic;
+        en : std_logic;
+        rst : std_logic);
+end dff08c;
+
+architecture behav of dff08c is
+  constant c : std_logic_vector(7 downto 0) := x"aa";
+  signal p : std_logic_vector(7 downto 0) := c;
+begin
+  process (clk, rst) is
+  begin
+    if en = '0' then
+      null;
+    elsif rst = '1' then
+      p <= c;
+    elsif rising_edge (clk) then
+      p <= d;
+    end if;
+  end process;
+  q <= p;
+end behav;