3 files changed, 38 insertions, 4 deletions
diff --git a/testsuite/synth/ret01/ret05.vhdl b/testsuite/synth/ret01/ret03.vhdl
index c14e36d11..5a4cde079 100644
--- a/testsuite/synth/ret01/ret05.vhdl
+++ b/testsuite/synth/ret01/ret03.vhdl
@@ -1,12 +1,12 @@
 library ieee;
 use ieee.std_logic_1164.all;
 
-entity ret02 is
+entity ret03 is
   port (di : std_logic_vector (7 downto 0);
         res : out integer);
-end ret02;
+end ret03;
 
-architecture behav of ret02 is
+architecture behav of ret03 is
   function ffs (v : std_logic_vector (7 downto 0)) return integer is
   begin
     for i in v'range loop
diff --git a/testsuite/synth/ret01/tb_ret03.vhdl b/testsuite/synth/ret01/tb_ret03.vhdl
new file mode 100644
index 000000000..244fdd904
--- /dev/null
+++ b/testsuite/synth/ret01/tb_ret03.vhdl
@@ -0,0 +1,34 @@
+entity tb_ret03 is
+end tb_ret03;
+
+library ieee;
+use ieee.std_logic_1164.all;
+
+architecture behav of tb_ret03 is
+  signal d : std_logic_vector (7 downto 0);
+  signal r : integer;
+begin
+  dut: entity work.ret03
+    port map (d, r);
+
+  process
+  begin
+    d <= x"01";
+    wait for 1 ns;
+    assert r = 0 severity failure;
+
+    d <= x"1f";
+    wait for 1 ns;
+    assert r = 4 severity failure;
+
+    d <= x"e2";
+    wait for 1 ns;
+    assert r = 7 severity failure;
+
+    d <= x"00";
+    wait for 1 ns;
+    assert r = -1 severity failure;
+
+    wait;
+  end process;
+end behav;
diff --git a/testsuite/synth/ret01/testsuite.sh b/testsuite/synth/ret01/testsuite.sh
index 40105e0be..94f9a09bb 100755
--- a/testsuite/synth/ret01/testsuite.sh
+++ b/testsuite/synth/ret01/testsuite.sh
@@ -2,7 +2,7 @@
 
 . ../../testenv.sh
 
-for t in ret01 ret02; do
+for t in ret01 ret02 ret03; do
     analyze $t.vhdl tb_$t.vhdl
     elab_simulate tb_$t
     clean