3 files changed, 75 insertions, 0 deletions
diff --git a/testsuite/synth/if01/if01.vhdl b/testsuite/synth/if01/if01.vhdl
new file mode 100644
index 000000000..0e1084a12
--- /dev/null
+++ b/testsuite/synth/if01/if01.vhdl
@@ -0,0 +1,21 @@
+library ieee;
+use ieee.std_logic_1164.all;
+use ieee.numeric_std.all;
+
+entity if01 is
+  port (c0, c1 : std_logic;
+        r : out std_logic);
+end if01;
+
+architecture behav of if01 is
+begin
+  process (c0, c1)
+  begin
+    r <= '0';
+    if c0 = '1' then
+      if c1 = '1' then
+        r <= '1';
+      end if;
+    end if;
+  end process;
+end behav;
diff --git a/testsuite/synth/if01/tb_if01.vhdl b/testsuite/synth/if01/tb_if01.vhdl
new file mode 100644
index 000000000..2c608137d
--- /dev/null
+++ b/testsuite/synth/if01/tb_if01.vhdl
@@ -0,0 +1,38 @@
+entity tb_if01 is
+end tb_if01;
+
+library ieee;
+use ieee.std_logic_1164.all;
+
+architecture behav of tb_if01 is
+  signal c0, c1 : std_logic;
+  signal r : std_logic;
+begin
+  dut: entity work.if01
+    port map (c0, c1, r);
+
+  process
+  begin
+    c0 <= '1';
+    c1 <= '0';
+    wait for 1 ns;
+    assert r = '0' severity failure;
+
+    c0 <= '0';
+    c1 <= '0';
+    wait for 1 ns;
+    assert r = '0' severity failure;
+
+    c0 <= '1';
+    c1 <= '1';
+    wait for 1 ns;
+    assert r = '1' severity failure;
+
+    c0 <= '0';
+    c1 <= '1';
+    wait for 1 ns;
+    assert r = '0' severity failure;
+
+    wait;
+  end process;
+end behav;
diff --git a/testsuite/synth/if01/testsuite.sh b/testsuite/synth/if01/testsuite.sh
new file mode 100755
index 000000000..061e1924a
--- /dev/null
+++ b/testsuite/synth/if01/testsuite.sh
@@ -0,0 +1,16 @@
+#! /bin/sh
+
+. ../../testenv.sh
+
+for t in if01; do
+    analyze $t.vhdl tb_$t.vhdl
+    elab_simulate tb_$t
+    clean
+
+    synth $t.vhdl -e $t > syn_$t.vhdl
+    analyze syn_$t.vhdl tb_$t.vhdl
+    elab_simulate tb_$t --ieee-asserts=disable-at-0
+    clean
+done
+
+echo "Test successful"