1 files changed, 27 insertions, 0 deletions
diff --git a/testsuite/synth/issue662/psl_onehot0.vhdl b/testsuite/synth/issue662/psl_onehot0.vhdl
new file mode 100644
index 000000000..edd4361c8
--- /dev/null
+++ b/testsuite/synth/issue662/psl_onehot0.vhdl
@@ -0,0 +1,27 @@
+library ieee;
+use ieee.std_logic_1164.all;
+
+entity psl_onehot0 is
+  port (clk  : in std_logic;
+        a, b : in std_logic_vector(3 downto 0);
+        c    : in natural range 0 to 15
+  );
+end entity psl_onehot0;
+
+
+architecture psl of psl_onehot0 is
+begin
+
+  -- All is sensitive to rising edge of clk
+  default clock is rising_edge(clk);
+
+  -- This assertion holds
+  ONEHOT0_0_a : assert always onehot0(a);
+
+  -- This assertion fails at cycle 15
+  ONEHOT0_1_a : assert always onehot0(b);
+
+  -- This assertion fails at cycle 15
+  ONEHOT0_2_a : assert always onehot(c);
+
+end architecture psl;