From cdcbb258be1aefa2244b3a262863544d04d686f8 Mon Sep 17 00:00:00 2001
From: Tristan Gingold <tgingold@free.fr>
Date: Thu, 11 Aug 2022 17:55:43 +0200
Subject: testsuite/gna: add a test for #2173

---
 testsuite/gna/issue2173/test1.vhdl   | 30 ++++++++++++++++++++++++++++++
 testsuite/gna/issue2173/test2.vhdl   | 17 +++++++++++++++++
 testsuite/gna/issue2173/testsuite.sh | 11 +++++++++++
 3 files changed, 58 insertions(+)
 create mode 100644 testsuite/gna/issue2173/test1.vhdl
 create mode 100644 testsuite/gna/issue2173/test2.vhdl
 create mode 100755 testsuite/gna/issue2173/testsuite.sh

diff --git a/testsuite/gna/issue2173/test1.vhdl b/testsuite/gna/issue2173/test1.vhdl
new file mode 100644
index 000000000..e76381ae8
--- /dev/null
+++ b/testsuite/gna/issue2173/test1.vhdl
@@ -0,0 +1,30 @@
+library ieee;
+use ieee.std_logic_1164.all;
+use ieee.numeric_std.all;
+
+entity test is
+end entity;
+
+architecture rtl of test is
+  signal sig  : unsigned(1 downto 0);
+begin
+end architecture;
+
+library ieee;
+use ieee.std_logic_1164.all;
+use ieee.numeric_std.all;
+
+entity test1 is
+end entity;
+
+architecture rtl of test1 is
+begin
+  i_test : entity work.test;
+
+  p_proc : process
+    alias sig    is <<signal i_test.sig : unsigned>>;
+  begin
+    sig <= force "11";
+    wait;
+  end process;
+end architecture;
diff --git a/testsuite/gna/issue2173/test2.vhdl b/testsuite/gna/issue2173/test2.vhdl
new file mode 100644
index 000000000..9901b3f45
--- /dev/null
+++ b/testsuite/gna/issue2173/test2.vhdl
@@ -0,0 +1,17 @@
+library ieee;
+use ieee.std_logic_1164.all;
+use ieee.numeric_std.all;
+
+entity test2 is
+end entity;
+
+architecture rtl of test2 is
+  signal s : unsigned(1 downto 0);
+begin
+  p_proc : process
+    alias sig : unsigned  is s ;
+  begin
+    sig <= force "11";
+    wait;
+  end process;
+end architecture;
diff --git a/testsuite/gna/issue2173/testsuite.sh b/testsuite/gna/issue2173/testsuite.sh
new file mode 100755
index 000000000..ab5ea3cb8
--- /dev/null
+++ b/testsuite/gna/issue2173/testsuite.sh
@@ -0,0 +1,11 @@
+#! /bin/sh
+
+. ../../testenv.sh
+
+export GHDL_STD_FLAGS=--std=08
+run "$GHDL" -s $GHDL_STD_FLAGS test1.vhdl
+run "$GHDL" -s $GHDL_STD_FLAGS test2.vhdl
+
+clean
+
+echo "Test successful"
-- 
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