1 files changed, 23 insertions, 0 deletions
diff --git a/testsuite/synth/issue1277/issue.vhdl b/testsuite/synth/issue1277/issue.vhdl
new file mode 100644
index 000000000..4cff77c52
--- /dev/null
+++ b/testsuite/synth/issue1277/issue.vhdl
@@ -0,0 +1,23 @@
+library ieee;
+use ieee.std_logic_1164.all;
+
+entity issue is
+    port (lo_1 : out std_logic_vector (1 downto 0);
+          lo_2 : out std_logic_vector (1 downto 0));
+end entity issue;
+
+architecture beh of issue is
+    function fun (arg : integer) return integer is
+    begin
+        return arg - 1;
+    end function;
+
+    signal hi_c : std_logic_vector (15-1 downto 1);
+    signal hi_f : std_logic_vector (fun(15) downto 1);
+
+    signal foobar_c : std_logic_vector (15 downto 0) := (others => '0');
+    signal foobar_f : std_logic_vector (fun(16) downto 0) := (others=>'0');
+begin
+    (hi_c, lo_1) <= foobar_f; -- works
+    (hi_f, lo_2) <= foobar_c; -- crashes
+end architecture;