1 files changed, 20 insertions, 0 deletions
diff --git a/testsuite/synth/issue1531/uns.vhdl b/testsuite/synth/issue1531/uns.vhdl
new file mode 100644
index 000000000..5987a81cc
--- /dev/null
+++ b/testsuite/synth/issue1531/uns.vhdl
@@ -0,0 +1,20 @@
+library ieee;
+use ieee.std_logic_1164.all;
+use ieee.numeric_std.all;
+
+entity uns is
+  port (
+    o1 : out std_logic_vector(1 downto 0);
+    o2 : out std_logic_vector (31 downto 0));
+end entity;
+
+architecture a of uns is
+  signal v32 : unsigned(31 downto 0);
+  signal v2 : unsigned(1 downto 0);
+begin
+    v2 <= to_unsigned(1, 2);
+    o1 <= std_logic_vector(v2);
+
+    v32 <= resize(to_unsigned(3, 2), 32);   -- <<<<<<< HERE
+    o2 <= std_logic_vector(v32);
+end;