testsuite/synth: add a test for #1267

2 files changed, 36 insertions, 0 deletions

diff --git a/testsuite/synth/issue1267/issue.vhdl b/testsuite/synth/issue1267/issue.vhdl
new file mode 100644
index 000000000..a5eb70be1
--- /dev/null
+++ b/testsuite/synth/issue1267/issue.vhdl
@@ -0,0 +1,28 @@
+library ieee;
+use ieee.std_logic_1164.all;
+
+entity issue is
+    port (bar    : in  std_logic;
+          foobar : out std_logic);
+end issue;
+
+architecture beh of issue is
+    function foo (arg : std_logic) return std_logic is
+    begin
+        RET_PATH1:
+        if arg = '1' then
+            return '1';
+        end if;
+
+        -- null range intended, but not necessary to repro
+        for i in 2 to 1 loop
+            EXIT_LOOP:
+            exit when true;
+        end loop;
+
+        RET_PATH2:
+        return '0';
+    end function;
+begin
+    foobar <= foo (bar);
+end architecture;
diff --git a/testsuite/synth/issue1267/testsuite.sh b/testsuite/synth/issue1267/testsuite.sh
new file mode 100755
index 000000000..30f40648a
--- /dev/null
+++ b/testsuite/synth/issue1267/testsuite.sh
@@ -0,0 +1,8 @@
+#! /bin/sh
+
+. ../../testenv.sh
+
+synth_analyze issue
+clean
+
+echo "Test successful"