1 files changed, 50 insertions, 0 deletions
diff --git a/testsuite/gna/issue776/main.vhdl b/testsuite/gna/issue776/main.vhdl
new file mode 100644
index 000000000..f736ab4f4
--- /dev/null
+++ b/testsuite/gna/issue776/main.vhdl
@@ -0,0 +1,50 @@
+library ieee;
+use ieee.std_logic_1164.all;
+entity HA_Entity is
+  port (
+    i_bit1  : in std_logic;
+    i_bit2  : in std_logic;
+    o_sum   : out std_logic;
+    o_carry : out std_logic
+    );
+end HA_Entity;
+architecture HA_Arch of HA_Entity is
+  component HA_Comp is
+    port (
+      i_bit1  : in  std_logic;
+      i_bit2  : in  std_logic;
+      o_sum   : out std_logic;
+      o_carry : out std_logic
+      );
+  end component HA_Comp;
+begin
+  HA_Inst : HA_Comp
+    port map (
+      i_bit1  => i_bit1,
+      i_bit2  => i_bit2,
+      o_sum   => o_sum,
+      o_carry => o_carry);
+end HA_Arch;
+library ieee;
+use ieee.std_logic_1164.all;
+entity HA_Comp_Entity is
+  port (
+    i_bit1  : in std_logic;
+    i_bit2  : in std_logic;
+    o_sum   : out std_logic;
+    o_carry : out std_logic
+    );
+end HA_Comp_Entity;
+architecture HA_Comp_Arch_1 of HA_Comp_Entity is
+begin
+  o_sum   <= i_bit1 xor i_bit2;
+  o_carry <= i_bit1 and i_bit2;
+end HA_Comp_Arch_1;
+use work.all;
+configuration HA_Config of HA_Entity is
+  for HA_Arch
+    for HA_Inst : HA_Comp
+      use entity HA_Comp_Entity(HA_Comp_Arch_1);
+    end for;
+  end for;
+end HA_Config;