testsuite/synth: add testcase for #1008

1 files changed, 19 insertions, 0 deletions

diff --git a/testsuite/synth/issue1008/test.vhdl b/testsuite/synth/issue1008/test.vhdl
new file mode 100644
index 000000000..b84ebb3af
--- /dev/null
+++ b/testsuite/synth/issue1008/test.vhdl
@@ -0,0 +1,19 @@
+library ieee;
+use ieee.std_logic_1164.all;
+use ieee.numeric_std.all;
+
+entity test is
+    port(
+         addr_in : in std_logic_vector(11 downto 0);
+         dat_out : out std_logic_vector(63 downto 0)
+         );
+end entity test;
+
+architecture behaviour of test is
+    type ram_t is array(0 to (4096 / 8) - 1) of std_logic_vector(63 downto 0);
+    signal memory : ram_t := (others => (others => '0'));
+    signal idx : natural := 0;
+begin
+    idx <= to_integer(unsigned(addr_in(11 downto 3)));
+    dat_out <= memory(idx);
+end architecture behaviour;