1 files changed, 14 insertions, 0 deletions
diff --git a/testsuite/synth/blackbox01/blackbox1_adder_bb.vhdl b/testsuite/synth/blackbox01/blackbox1_adder_bb.vhdl
new file mode 100644
index 000000000..47227eab3
--- /dev/null
+++ b/testsuite/synth/blackbox01/blackbox1_adder_bb.vhdl
@@ -0,0 +1,14 @@
+library ieee;
+use ieee.std_logic_1164.all;
+use ieee.numeric_std.all;
+
+entity blackbox1_adder is
+  port (a, b : in std_logic_vector(7 downto 0);
+        r : out std_logic_vector(7 downto 0));
+end blackbox1_adder;
+
+architecture behav of blackbox1_adder is
+  attribute syn_black_box : boolean;
+  attribute syn_black_box of behav : architecture is true;
+begin
+end behav;