testsuite/synth: add testcase for #964

1 files changed, 28 insertions, 0 deletions

diff --git a/testsuite/synth/issue964/ent.vhdl b/testsuite/synth/issue964/ent.vhdl
new file mode 100644
index 000000000..abed11a80
--- /dev/null
+++ b/testsuite/synth/issue964/ent.vhdl
@@ -0,0 +1,28 @@
+library ieee;
+use ieee.std_logic_1164.all;
+
+entity ent is
+    port (
+        clk : in std_logic;
+        reset : in std_logic;
+        enable : in std_logic;
+        q : out std_logic
+    );
+end;
+
+architecture a of ent is
+    signal s : std_logic;
+begin
+    process(clk, reset)
+    begin
+        if reset = '1' then
+            s <= '0';
+        elsif enable /= '1' then
+            -- [nothing]
+        elsif rising_edge(clk) then
+            s <= not s;
+        end if;
+    end process;
+
+    q <= s;
+end;