testsuite: add test for #1039

2 files changed, 37 insertions, 0 deletions

diff --git a/testsuite/synth/issue1039/ent.vhdl b/testsuite/synth/issue1039/ent.vhdl
new file mode 100644
index 000000000..f600fcf8b
--- /dev/null
+++ b/testsuite/synth/issue1039/ent.vhdl
@@ -0,0 +1,25 @@
+library ieee;
+use ieee.std_logic_1164.all,
+    ieee.numeric_std.all;
+
+entity ent is
+	port (
+		clk     : in std_logic;
+		addr    : in std_logic_vector(2 downto 0);
+		wr_data : in std_logic_vector(3 downto 0);
+		rd_data : out std_logic_vector(3 downto 0)
+	);
+end ent;
+
+architecture a of ent is
+	type ram_type is array (0 to 7) of std_logic_vector(3 downto 0);
+	signal ram : ram_type := (others => (others => '0'));
+begin
+	process(clk)
+	begin
+		if rising_edge(clk) then
+			ram(to_integer(unsigned(addr))) <= wr_data;
+			rd_data <= ram(to_integer(unsigned(addr)));
+		end if;
+	end process;
+end;
diff --git a/testsuite/synth/issue1039/testsuite.sh b/testsuite/synth/issue1039/testsuite.sh
new file mode 100755
index 000000000..bc454cfda
--- /dev/null
+++ b/testsuite/synth/issue1039/testsuite.sh
@@ -0,0 +1,12 @@
+#! /bin/sh
+
+. ../../testenv.sh
+
+for t in ent; do
+  synth $t.vhdl -e $t > syn_$t.vhdl
+  analyze syn_$t.vhdl
+done
+
+clean
+
+echo "Test successful"