1 files changed, 39 insertions, 0 deletions
diff --git a/testsuite/synth/issue2043/tb_ent1.vhdl b/testsuite/synth/issue2043/tb_ent1.vhdl
new file mode 100644
index 000000000..80174e4dc
--- /dev/null
+++ b/testsuite/synth/issue2043/tb_ent1.vhdl
@@ -0,0 +1,39 @@
+entity tb_ent1 is
+end tb_ent1;
+
+library ieee;
+use ieee.std_logic_1164.all;
+
+architecture behav of tb_ent1 is
+  signal clk, rst : std_logic;
+  signal inp : std_logic_vector(15 downto 0);
+  signal data : std_logic_vector(63 downto 0);
+begin
+  dut: entity work.ent1
+    port map (clk, rst, inp, data);
+
+  process
+    procedure pulse is
+    begin
+      clk <= '0';
+      wait for 1 ns;
+      clk <= '1';
+      wait for 1 ns;
+    end pulse;
+  begin
+    rst <= '1';
+    pulse;
+
+    rst <= '0';
+    inp <= x"a001";
+    pulse;
+    inp <= x"b002";
+    pulse;
+    inp <= x"c003";
+    pulse;
+    inp <= x"d004";
+    pulse;
+    assert data = x"d004c003b002a001" severity failure;
+    wait;
+  end process;
+end behav;