1 files changed, 53 insertions, 0 deletions
diff --git a/testsuite/synth/issue1348/sdp_simple.vhdl b/testsuite/synth/issue1348/sdp_simple.vhdl
new file mode 100644
index 000000000..58513dd4a
--- /dev/null
+++ b/testsuite/synth/issue1348/sdp_simple.vhdl
@@ -0,0 +1,53 @@
+library ieee;
+use ieee.std_logic_1164.all,
+    ieee.numeric_std.all;
+
+entity sdp_simple is
+    port (
+        clk          : in  std_logic;
+
+        read_a       : in  std_logic;
+        write_a      : in  std_logic;
+        byteen_a     : in  std_logic_vector(0 downto 0);
+        addr_a       : in  std_logic_vector(11 downto 0);
+        data_read_a  : out std_logic_vector(7 downto 0);
+        data_write_a : in  std_logic_vector(7 downto 0);
+
+        read_b       : in  std_logic;
+        write_b      : in  std_logic;
+        byteen_b     : in  std_logic_vector(3 downto 0);
+        addr_b       : in  std_logic_vector(9 downto 0);
+        data_read_b  : out std_logic_vector(31 downto 0);
+        data_write_b : in  std_logic_vector(31 downto 0)
+    );
+end sdp_simple;
+
+architecture behavioral of sdp_simple is
+    type ram_t is array(0 to 4095) of std_logic_vector(7 downto 0);
+    signal store : ram_t := (others => (others => '0'));
+begin
+    process(clk)
+    begin
+        if rising_edge(clk) then
+            if write_a = '1' and byteen_a(0) = '1' then
+                store(to_integer(unsigned(addr_a))) <= data_write_a;
+            end if;
+
+            if read_a = '1' then
+                data_read_a <= store(to_integer(unsigned(addr_a)));
+            end if;
+
+            for i in 0 to 3 loop
+                if write_b = '1' and byteen_b(i) = '1' then
+                    store(to_integer(unsigned(addr_b) & to_unsigned(i, 2))) <=
+                        data_write_b((i+1) * 8 - 1 downto i * 8);
+                end if;
+
+                if read_b = '1' then
+                    data_read_b((i+1) * 8 - 1 downto i * 8) <=
+                        store(to_integer(unsigned(addr_b) & to_unsigned(i, 2)));
+                end if;
+            end loop;
+        end if;
+    end process;
+end behavioral;