testsuite/synth: add a test for previous commit.

2 files changed, 49 insertions, 1 deletions

diff --git a/testsuite/synth/conv01/pos01.vhdl b/testsuite/synth/conv01/pos01.vhdl
new file mode 100644
index 000000000..94b943a98
--- /dev/null
+++ b/testsuite/synth/conv01/pos01.vhdl
@@ -0,0 +1,48 @@
+library ieee;
+use ieee.std_logic_1164.all;
+use ieee.numeric_std.all;
+
+entity pos01 is
+  generic (g_en : boolean := True);
+  port (clk : std_logic;
+        rst : std_logic;
+        en : std_logic;
+        st : out std_logic_vector(1 downto 0));
+end pos01;
+
+architecture behav of pos01 is
+  type t_state is (IDLE, WAIT1, WAIT2, DONE);
+  signal s : t_state;
+  constant c1 : integer := t_state'pos(WAIT2);
+  constant c2 : integer := boolean'pos(g_en);
+begin
+  process (clk) is
+  begin
+    if rising_edge(clk) then
+      if rst = '1' then
+        s <= IDLE;
+      else
+        case s is
+          when IDLE =>
+            if en = '1' then
+              s <= WAIT1;
+            end if;
+          when WAIT1 =>
+            if en = '1' then
+              s <= WAIT2;
+            end if;
+          when WAIT2 =>
+            if en = '1' then
+              s <= DONE;
+            end if;
+          when DONE =>
+            null;
+        end case;
+      end if;
+    end if;
+  end process;
+
+  st <= std_logic_vector(to_unsigned(t_state'pos(s), 2));
+end behav;
+
+            
diff --git a/testsuite/synth/conv01/testsuite.sh b/testsuite/synth/conv01/testsuite.sh
index 7de4702f2..aee0f6db9 100755
--- a/testsuite/synth/conv01/testsuite.sh
+++ b/testsuite/synth/conv01/testsuite.sh
@@ -2,7 +2,7 @@
 
 . ../../testenv.sh
 
-for t in conv01; do
+for t in conv01 pos01; do
     synth_analyze $t
     clean
 done