1 files changed, 30 insertions, 0 deletions
diff --git a/testsuite/synth/issue2125/afed_syn.vhdl b/testsuite/synth/issue2125/afed_syn.vhdl
new file mode 100644
index 000000000..7abf79752
--- /dev/null
+++ b/testsuite/synth/issue2125/afed_syn.vhdl
@@ -0,0 +1,30 @@
+library ieee;
+use ieee.std_logic_1164.all;
+entity afed is
+  port (
+    sig: in std_logic;
+    ack: in std_logic;
+    fe: out std_logic
+  );
+end entity;
+
+library ieee;
+use ieee.std_logic_1164.all;
+use ieee.numeric_std.all;
+
+architecture rtl of afed is
+  signal fe_h : std_logic;
+  signal fe_l : std_logic;
+  signal n4_o : std_logic;
+  signal n9_o : std_logic;
+  signal n10_o : std_logic;
+begin
+  fe <= fe_l;
+
+  n4_o <= fe_h when sig = '0' else '1';
+  fe_h <= n4_o when ack = '0' else '0';
+
+  n9_o <= (not sig) and fe_h;                  -- 0
+  n10_o <= fe_l when n9_o = '0' else '1';
+  fe_l <= n10_o when ack = '0' else '0';
+end rtl;