Add testcase for #663

1 files changed, 35 insertions, 0 deletions

diff --git a/testsuite/gna/issue663/repro.vhdl b/testsuite/gna/issue663/repro.vhdl
new file mode 100644
index 000000000..220c4820f
--- /dev/null
+++ b/testsuite/gna/issue663/repro.vhdl
@@ -0,0 +1,35 @@
+library ieee;
+use ieee.std_logic_1164.all;
+
+entity repro is
+end entity repro;
+
+architecture a of repro is
+  signal clk : std_logic := '0';
+
+  signal check_stable_in_1 : std_logic_vector(1 to 5) := "00000";
+  alias check_stable_expr_1         : std_logic_vector(2 downto 0) is check_stable_in_1(3 to 5);
+
+  procedure check_stable(
+    signal clock               : in std_logic;
+    signal expr                : in std_logic_vector) is
+  begin
+    wait until rising_edge(clock);
+  end;
+
+begin
+  clock : process is
+  begin
+    clk <= '1', '0' after 5 ns;
+    wait;
+  end process clock;
+
+--  process
+--  begin
+--    check_stable(clk, check_stable_expr_1);
+--    wait on clk, check_stable_expr_1;
+--    assert check_stable_expr_1 = "000";
+--  end process;
+  check_stable_1 : check_stable(clk, check_stable_expr_1);
+
+end architecture;