1 files changed, 21 insertions, 0 deletions
diff --git a/testsuite/synth/func01/func04.vhdl b/testsuite/synth/func01/func04.vhdl
new file mode 100644
index 000000000..a7c5f2014
--- /dev/null
+++ b/testsuite/synth/func01/func04.vhdl
@@ -0,0 +1,21 @@
+library ieee;
+use ieee.std_logic_1164.all;
+
+entity func04 is
+  port (a : std_logic_vector (7 downto 0);
+        b : std_logic_vector (7 downto 0);
+        r : out std_logic_vector (7 downto 0));
+end func04;
+
+architecture behav of func04 is
+  function gen_mask (len : natural) return std_logic_vector is
+    variable res : std_logic_vector (len - 1 downto 0);
+  begin
+    res := (0 | 1 => '0', others => '1');
+    return res;
+  end gen_mask;
+  constant mask : std_logic_vector(7 downto 0) := not gen_mask (8);
+begin
+  r <= (a and mask) or (b and gen_mask (8));
+end behav;
+