From 634b0991bd2709fc19eec5d0af0f46a52341b70c Mon Sep 17 00:00:00 2001
From: Tristan Gingold <tgingold@free.fr>
Date: Thu, 9 Jun 2022 07:53:34 +0200
Subject: testsuite/synth: add a test for #2085

---
 testsuite/synth/issue2085/bug.vhdl     | 27 +++++++++++++++++++++++++++
 testsuite/synth/issue2085/testsuite.sh |  8 ++++++++
 2 files changed, 35 insertions(+)
 create mode 100644 testsuite/synth/issue2085/bug.vhdl
 create mode 100755 testsuite/synth/issue2085/testsuite.sh

diff --git a/testsuite/synth/issue2085/bug.vhdl b/testsuite/synth/issue2085/bug.vhdl
new file mode 100644
index 000000000..0b719a075
--- /dev/null
+++ b/testsuite/synth/issue2085/bug.vhdl
@@ -0,0 +1,27 @@
+library IEEE;
+use IEEE.std_logic_1164.all;
+
+entity bug is
+	port (
+		clk   : in  std_ulogic;
+		src   : in  std_ulogic_vector(15 downto 0);
+		dst   : out std_ulogic_vector(16 downto 0)
+	);
+end bug;
+
+architecture rtl of bug is
+begin
+
+process(clk)
+	function fun(val : std_ulogic_vector) return std_ulogic_vector is
+		variable tmp : val'subtype; --this causes the crash
+	begin
+		return val;
+	end function;
+begin
+	if rising_edge(clk) then
+		dst <= '0' & fun(src);
+	end if;
+end process;
+
+end architecture;
diff --git a/testsuite/synth/issue2085/testsuite.sh b/testsuite/synth/issue2085/testsuite.sh
new file mode 100755
index 000000000..c355095b7
--- /dev/null
+++ b/testsuite/synth/issue2085/testsuite.sh
@@ -0,0 +1,8 @@
+#! /bin/sh
+
+. ../../testenv.sh
+
+GHDL_STD_FLAGS=--std=08
+synth_only bug
+
+echo "Test successful"
-- 
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