testsuite/synth: add a test for #1160

1 files changed, 14 insertions, 0 deletions

diff --git a/testsuite/synth/issue1160/issue.vhdl b/testsuite/synth/issue1160/issue.vhdl
new file mode 100644
index 000000000..36f2890ba
--- /dev/null
+++ b/testsuite/synth/issue1160/issue.vhdl
@@ -0,0 +1,14 @@
+library ieee;
+use ieee.std_logic_1164.all;
+use ieee.numeric_std.all;
+
+entity issue is
+    generic (N     : natural := 3);
+       port (data  : out signed(N-1 downto 0));
+end issue;
+
+architecture rtl of issue is
+    subtype my_type is signed(N-1 downto 0);
+begin
+    data <= to_signed(1,my_type'length);
+end architecture;