3 files changed, 49 insertions, 0 deletions
diff --git a/testsuite/synth/issue1168/bug.vhdl b/testsuite/synth/issue1168/bug.vhdl
new file mode 100644
index 000000000..2d0546619
--- /dev/null
+++ b/testsuite/synth/issue1168/bug.vhdl
@@ -0,0 +1,19 @@
+library IEEE;
+use IEEE.std_logic_1164.all;
+use IEEE.numeric_std.all;
+
+entity bug is
+	generic(
+		LEN : positive := 32
+	);
+	port(
+		input_a :  in unsigned(LEN-1 downto 0);
+		input_b :  in unsigned(LEN-1 downto 0);
+		output  : out unsigned(LEN-1 downto 0)
+	);
+end bug;
+
+architecture behav of bug is
+begin
+	output <= minimum(input_a, input_b);
+end architecture;
diff --git a/testsuite/synth/issue1168/bug2.vhdl b/testsuite/synth/issue1168/bug2.vhdl
new file mode 100644
index 000000000..c5085ccc7
--- /dev/null
+++ b/testsuite/synth/issue1168/bug2.vhdl
@@ -0,0 +1,19 @@
+library IEEE;
+use IEEE.std_logic_1164.all;
+use IEEE.numeric_std.all;
+
+entity bug2 is
+	generic(
+		LEN : positive := 32
+	);
+	port(
+		input_a :  in unsigned(LEN-1 downto 0);
+		input_b :  in unsigned(LEN-1 downto 0);
+		output  : out unsigned(LEN-1 downto 0)
+	);
+end bug2;
+
+architecture behav of bug2 is
+begin
+	output <= maximum(input_a, input_b);
+end architecture;
diff --git a/testsuite/synth/issue1168/testsuite.sh b/testsuite/synth/issue1168/testsuite.sh
new file mode 100755
index 000000000..2c2022f16
--- /dev/null
+++ b/testsuite/synth/issue1168/testsuite.sh
@@ -0,0 +1,11 @@
+#! /bin/sh
+
+. ../../testenv.sh
+
+GHDL_STD_FLAGS=--std=08
+synth_analyze bug
+synth_analyze bug2
+
+clean
+
+echo "Test successful"