1 files changed, 22 insertions, 0 deletions
diff --git a/testsuite/gna/issue1639/ap.vhdl b/testsuite/gna/issue1639/ap.vhdl
new file mode 100644
index 000000000..17e3b5907
--- /dev/null
+++ b/testsuite/gna/issue1639/ap.vhdl
@@ -0,0 +1,22 @@
+entity ap_a_04 is
+
+ end entity ap_a_04;
+
+ library ieee;  use ieee.std_logic_1164.all;
+
+ architecture test of ap_a_04 is
+
+   signal a, b, y : std_ulogic;
+
+ begin
+
+   -- code from book
+
+   y <= a or b;
+
+   -- end code from book
+
+   a <= '0', '1' after 10 ns;
+   b <= '0', '1' after 9223372036854775802 ns, '0' after 10 ns, '1' after 15 ns;
+
+ end architecture test;