testsuite/synth: add a test for #1424

2 files changed, 27 insertions, 0 deletions

diff --git a/testsuite/synth/issue1424/bar.vhdl b/testsuite/synth/issue1424/bar.vhdl
new file mode 100644
index 000000000..39cb9ca7b
--- /dev/null
+++ b/testsuite/synth/issue1424/bar.vhdl
@@ -0,0 +1,18 @@
+library ieee;
+use ieee.std_logic_1164.all;
+use ieee.std_logic_arith.all;
+
+entity bar is
+  port (
+    input    : in unsigned(3 downto 0);
+    output   : out std_logic
+  );
+end bar;
+
+architecture bar of bar is
+begin
+  output <= '1' when input(3 downto 0) = conv_unsigned(7, 4)
+                else '0';
+end bar;
+
+
diff --git a/testsuite/synth/issue1424/testsuite.sh b/testsuite/synth/issue1424/testsuite.sh
new file mode 100755
index 000000000..cfd56bd0d
--- /dev/null
+++ b/testsuite/synth/issue1424/testsuite.sh
@@ -0,0 +1,9 @@
+#! /bin/sh
+
+. ../../testenv.sh
+
+GHDL_STD_FLAGS="--std=08 -fsynopsys"
+synth_analyze bar
+clean
+
+echo "Test successful"