testsuite/synth: add a test for #2063

2 files changed, 39 insertions, 0 deletions

diff --git a/testsuite/synth/issue2063/array_index_crash.vhdl b/testsuite/synth/issue2063/array_index_crash.vhdl
new file mode 100644
index 000000000..2be4b0206
--- /dev/null
+++ b/testsuite/synth/issue2063/array_index_crash.vhdl
@@ -0,0 +1,32 @@
+library ieee;
+use ieee.std_logic_1164.all;
+use ieee.numeric_std.all;
+
+entity array_index_crash is
+end entity;
+
+architecture behaviour of array_index_crash is
+
+  constant SIZE : integer := 8;
+  constant AMIN : integer := 0;
+  constant AMAX : integer := 7;
+
+  subtype data_t is std_logic_vector((SIZE-1) downto 0);
+  type data_arr_t is array(AMIN to AMAX) of data_t;
+
+  function initialise return data_arr_t is
+    variable ret : data_arr_t;
+    variable itv : integer;
+  begin
+    for i in AMIN to AMAX
+    loop
+      itv := 2*AMAX;
+      --  vvv oops
+      ret(itv) := std_logic_vector(to_unsigned(itv, SIZE));
+    end loop;
+    return ret;
+  end function;
+
+  constant data_arr : data_arr_t := initialise;
+begin
+end architecture;
diff --git a/testsuite/synth/issue2063/testsuite.sh b/testsuite/synth/issue2063/testsuite.sh
new file mode 100755
index 000000000..d9e33478f
--- /dev/null
+++ b/testsuite/synth/issue2063/testsuite.sh
@@ -0,0 +1,7 @@
+#! /bin/sh
+
+. ../../testenv.sh
+
+synth_failure array_index_crash.vhdl -e
+
+echo "Test successful"