1 files changed, 25 insertions, 0 deletions
diff --git a/testsuite/synth/issue2011/tb_testcase.vhdl b/testsuite/synth/issue2011/tb_testcase.vhdl
new file mode 100644
index 000000000..38c879450
--- /dev/null
+++ b/testsuite/synth/issue2011/tb_testcase.vhdl
@@ -0,0 +1,25 @@
+entity tb_testcase is
+end tb_testcase;
+
+library ieee;
+use ieee.std_logic_1164.all;
+
+architecture behav of tb_testcase is
+  signal sel : std_ulogic_vector(3 downto 0);
+  signal result   : std_ulogic_vector(63 downto 0);
+begin
+  dut: entity work.testcase
+    port map (sel, result);
+
+  process
+  begin
+    sel <= "0000";
+    wait for 1 ns;
+    assert result = x"00000000_00000000";
+
+    sel <= "1101";
+    wait for 1 ns;
+    assert result = x"ffffffff_00000000";
+    wait;
+  end process;
+end behav;