testsuite/gna: add a testcase for #1704

1 files changed, 24 insertions, 0 deletions

diff --git a/testsuite/gna/issue1704/repro3.vhdl b/testsuite/gna/issue1704/repro3.vhdl
new file mode 100644
index 000000000..3a2052911
--- /dev/null
+++ b/testsuite/gna/issue1704/repro3.vhdl
@@ -0,0 +1,24 @@
+library ieee;
+use ieee.std_logic_1164.all;
+
+entity repro3 is
+  generic (
+     word_len : natural := 20);
+end;
+
+architecture behav of repro3 is
+  subtype word is std_logic_vector(word_len - 1 downto 0);
+  
+  function F return word is
+  begin
+    return ("1010","101010101010", others => '0');
+  end function;
+begin
+  assert f = b"1010_101010101010_0000" severity failure;
+  process
+  begin
+    report to_string(f);
+    wait;
+  end process;
+end;
+