testsuite/synth: add a test for static values.

1 files changed, 29 insertions, 0 deletions

diff --git a/testsuite/synth/const01/const01.vhdl b/testsuite/synth/const01/const01.vhdl
new file mode 100644
index 000000000..5e908d89b
--- /dev/null
+++ b/testsuite/synth/const01/const01.vhdl
@@ -0,0 +1,29 @@
+library ieee;
+use ieee.std_logic_1164.all;
+
+entity const01 is
+  port (o : out std_logic_vector(0 to 31));
+end const01;
+
+architecture behav of const01 is
+  type slv_array is array (natural range <>) of std_logic_vector(7 downto 0);
+
+  function conv (v : std_logic_vector) return slv_array is
+    variable r : slv_array(0 to v'length / 8 - 1);
+  begin
+    for i in 0 to r'length-1 loop
+      r (i) := v(v'length - (i*8) - 1 downto v'length - (i*8) - 8);
+    end loop;
+    return r;
+  end conv;
+
+  constant init : std_logic_vector (31 downto 0) := x"01020304";
+  constant res : slv_array (0 to 3) := conv (init);
+begin
+  o (0 to 7) <= res (0);
+  o (8 to 15) <= res (1);
+  o (16 to 23) <= res (2);
+  o (24 to 31) <= res (3);
+end behav;
+
+