3 files changed, 80 insertions, 0 deletions
diff --git a/testsuite/gna/issue1677/ent.vhdl b/testsuite/gna/issue1677/ent.vhdl
new file mode 100644
index 000000000..613f4f889
--- /dev/null
+++ b/testsuite/gna/issue1677/ent.vhdl
@@ -0,0 +1,50 @@
+library IEEE;
+use IEEE.std_logic_1164.all;
+use IEEE.numeric_std.all;
+
+entity saturatingadd is
+  port(
+	  result : out unsigned(7 downto 0)
+  );
+end saturatingadd;
+
+architecture synth of saturatingadd is
+
+begin
+
+    process is
+    begin
+        result <= "00000000";
+    end process;
+
+end;
+
+library IEEE;
+use IEEE.std_logic_1164.all;
+use IEEE.numeric_std.all;
+use std.textio.all;
+
+entity ent is
+end ent;
+
+architecture test of ent is
+
+    component saturatingadd is
+      port(
+    	  result : out unsigned(7 downto 0)
+      );
+    end component;
+
+    signal result : unsigned(7 downto 0);
+
+begin
+
+  dut : saturatingadd port map(result);
+
+  process is
+  begin
+    wait for 10 ns;
+    write (output, "TEST PASSED." & LF);
+    wait;
+  end process;
+end test;
diff --git a/testsuite/gna/issue1677/repro.vhdl b/testsuite/gna/issue1677/repro.vhdl
new file mode 100644
index 000000000..adf891471
--- /dev/null
+++ b/testsuite/gna/issue1677/repro.vhdl
@@ -0,0 +1,20 @@
+library IEEE;
+use IEEE.std_logic_1164.all;
+use IEEE.numeric_std.all;
+
+entity saturatingadd is
+  port(
+	  result : out unsigned(7 downto 0)
+  );
+end saturatingadd;
+
+architecture synth of saturatingadd is
+
+begin
+
+    process is
+    begin
+        result <= "00000000";
+    end process;
+
+end;
diff --git a/testsuite/gna/issue1677/testsuite.sh b/testsuite/gna/issue1677/testsuite.sh
new file mode 100755
index 000000000..cca0a99d8
--- /dev/null
+++ b/testsuite/gna/issue1677/testsuite.sh
@@ -0,0 +1,10 @@
+#! /bin/sh
+
+. ../../testenv.sh
+
+analyze_failure -Werror repro.vhdl
+analyze repro.vhdl
+
+clean
+
+echo "Test successful"