3 files changed, 46 insertions, 0 deletions
diff --git a/testsuite/synth/issue1006/test.vhdl b/testsuite/synth/issue1006/test.vhdl
new file mode 100644
index 000000000..1473d3eb8
--- /dev/null
+++ b/testsuite/synth/issue1006/test.vhdl
@@ -0,0 +1,20 @@
+library ieee;
+use ieee.std_logic_1164.all;
+
+library work;
+use work.test_package.all;
+
+entity test is
+    generic(
+        MEMORY_SIZE : natural := 4096
+        );
+    port(
+        val_in  : in std_logic_vector(63 downto 0)
+        );
+end entity test;
+
+architecture behaviour of test is
+    signal tmp : std_logic_vector(log2(MEMORY_SIZE) - 1 downto 0);
+begin
+    tmp <= val_in(log2(MEMORY_SIZE) - 1 downto 0);
+end architecture behaviour;
diff --git a/testsuite/synth/issue1006/test_package.vhdl b/testsuite/synth/issue1006/test_package.vhdl
new file mode 100644
index 000000000..4eeb95fa5
--- /dev/null
+++ b/testsuite/synth/issue1006/test_package.vhdl
@@ -0,0 +1,17 @@
+package test_package is
+    function log2(input : in natural) return natural;
+end package test_package;
+
+package body test_package is
+    function log2(input : in natural) return natural is
+        variable retval : natural := 0;
+        variable temp   : natural := input;
+    begin
+        while temp > 1 loop
+            retval := retval + 1;
+            temp := temp / 2;
+        end loop;
+
+        return retval;
+    end function log2;
+end package body test_package;
diff --git a/testsuite/synth/issue1006/testsuite.sh b/testsuite/synth/issue1006/testsuite.sh
new file mode 100755
index 000000000..08fafc2d7
--- /dev/null
+++ b/testsuite/synth/issue1006/testsuite.sh
@@ -0,0 +1,9 @@
+#! /bin/sh
+
+. ../../testenv.sh
+
+synth test_package.vhdl test.vhdl -e test > syn_test.vhdl
+analyze test_package.vhdl syn_test.vhdl
+clean
+
+echo "Test successful"