testsuite/synth: add a test for #1208

2 files changed, 30 insertions, 0 deletions

diff --git a/testsuite/synth/issue1208/adders_4.vhdl b/testsuite/synth/issue1208/adders_4.vhdl
new file mode 100644
index 000000000..1da64794b
--- /dev/null
+++ b/testsuite/synth/issue1208/adders_4.vhdl
@@ -0,0 +1,21 @@
+library ieee;
+use ieee.std_logic_1164.all;
+use ieee.std_logic_arith.all;
+use ieee.std_logic_unsigned.all;
+
+entity adders_4 is
+    port(A,B : in std_logic_vector(7 downto 0);
+         CI : in std_logic;
+         SUM : out std_logic_vector(7 downto 0);
+         CO : out std_logic);
+end adders_4;
+
+architecture archi of adders_4 is
+    signal tmp: std_logic_vector(8 downto 0);
+begin
+
+    tmp <= conv_std_logic_vector((conv_integer(A) + conv_integer(B) + conv_integer(CI)),9);
+    SUM <= tmp(7 downto 0);
+    CO <= tmp(8);
+
+end archi;
diff --git a/testsuite/synth/issue1208/testsuite.sh b/testsuite/synth/issue1208/testsuite.sh
new file mode 100755
index 000000000..e0e4757fa
--- /dev/null
+++ b/testsuite/synth/issue1208/testsuite.sh
@@ -0,0 +1,9 @@
+#! /bin/sh
+
+. ../../testenv.sh
+
+GHDL_STD_FLAGS=-fsynopsys
+
+synth adders_4.vhdl -e > syn_adders_4.vhdl
+
+echo "Test successful"