testsuite/synth: add a test for #1332

2 files changed, 36 insertions, 0 deletions

diff --git a/testsuite/synth/issue1332/rom_constant.vhdl b/testsuite/synth/issue1332/rom_constant.vhdl
new file mode 100644
index 000000000..2812aac3d
--- /dev/null
+++ b/testsuite/synth/issue1332/rom_constant.vhdl
@@ -0,0 +1,28 @@
+library ieee;
+use ieee.std_logic_1164.all;
+
+entity rom_constant is
+  port (
+    clk : in std_logic;
+    a : out std_logic_vector(7 downto 0)
+  );
+end rom_constant;
+
+architecture rtl of rom_constant is
+  constant C_IEND : std_logic_vector(12*8-1 downto 0) := (others => '1');
+  signal index : integer := 0;
+begin
+  process(clk)
+  begin
+    if rising_edge(clk) then
+      a <= C_IEND(index*8-1 downto (index-1)*8);
+
+      if index < 12 then
+        index <= index + 1;
+      else
+        index <= 0;
+      end if;
+    end if;
+  end process;
+end rtl;
+
diff --git a/testsuite/synth/issue1332/testsuite.sh b/testsuite/synth/issue1332/testsuite.sh
new file mode 100755
index 000000000..c846c4bad
--- /dev/null
+++ b/testsuite/synth/issue1332/testsuite.sh
@@ -0,0 +1,8 @@
+#! /bin/sh
+
+. ../../testenv.sh
+
+synth_analyze rom_constant
+clean
+
+echo "Test successful"