3 files changed, 54 insertions, 0 deletions
diff --git a/testsuite/synth/issue1117/ent.vhdl b/testsuite/synth/issue1117/ent.vhdl
new file mode 100644
index 000000000..135d2d31c
--- /dev/null
+++ b/testsuite/synth/issue1117/ent.vhdl
@@ -0,0 +1,16 @@
+library ieee;
+use ieee.numeric_std.all;
+use ieee.std_logic_1164.all;
+
+entity ent is
+	generic (
+		G : unsigned(31 downto 0)
+	);
+        port (
+          res : out unsigned (31 downto 0));
+end;
+
+architecture a of ent is
+begin
+  res <= g;
+end;
diff --git a/testsuite/synth/issue1117/tb_ent.vhdl b/testsuite/synth/issue1117/tb_ent.vhdl
new file mode 100644
index 000000000..bed2308cc
--- /dev/null
+++ b/testsuite/synth/issue1117/tb_ent.vhdl
@@ -0,0 +1,22 @@
+library ieee;
+use ieee.std_logic_1164.all;
+use ieee.numeric_std.all;
+
+entity tb_ent is
+end;
+
+architecture behav of tb_ent is
+  signal r : unsigned (31 downto 0);
+begin
+  dut: entity work.ent
+    generic map (g => x"ffff_0001")
+    port map (res => r);
+
+  process
+  begin
+    wait for 1 ns;
+    assert r = x"ffff0001" severity failure;
+    wait;
+  end process;
+end behav;
+
diff --git a/testsuite/synth/issue1117/testsuite.sh b/testsuite/synth/issue1117/testsuite.sh
new file mode 100755
index 000000000..7b5a2cb7c
--- /dev/null
+++ b/testsuite/synth/issue1117/testsuite.sh
@@ -0,0 +1,16 @@
+#! /bin/sh
+
+. ../../testenv.sh
+
+for t in ent; do
+    analyze $t.vhdl tb_$t.vhdl
+    elab_simulate tb_$t
+    clean
+
+    synth '-gg=x"ff_ff_00_01"' $t.vhdl -e $t > syn_$t.vhdl
+    analyze syn_$t.vhdl tb_$t.vhdl
+    elab_simulate tb_$t --ieee-asserts=disable-at-0
+    clean
+done
+
+echo "Test successful"