4 files changed, 43 insertions, 0 deletions
diff --git a/testsuite/gna/issue777/a.vhdl b/testsuite/gna/issue777/a.vhdl
new file mode 100644
index 000000000..fd6434375
--- /dev/null
+++ b/testsuite/gna/issue777/a.vhdl
@@ -0,0 +1,16 @@
+entity a is
+
+  port (
+    i : in boolean := true
+    );
+
+end entity a;
+
+architecture functional of a is
+
+begin  -- architecture functional
+
+  b1 : entity work.b
+    port map (i => i);
+
+end architecture functional;
diff --git a/testsuite/gna/issue777/sim.sh b/testsuite/gna/issue777/sim.sh
new file mode 100755
index 000000000..547e23d45
--- /dev/null
+++ b/testsuite/gna/issue777/sim.sh
@@ -0,0 +1,2 @@
+ghdl_mcode -i --work=build --workdir=. tb.vhdl a.vhdl
+ghdl_mcode -c --work=build --workdir=. -r tb
diff --git a/testsuite/gna/issue777/tb.vhdl b/testsuite/gna/issue777/tb.vhdl
new file mode 100644
index 000000000..6a4b10cb4
--- /dev/null
+++ b/testsuite/gna/issue777/tb.vhdl
@@ -0,0 +1,12 @@
+entity tb is
+
+end entity tb;
+
+architecture functional of tb is
+
+begin  -- architecture functional
+
+  dut : entity work.a
+    port map (i => true);
+
+end architecture functional;
diff --git a/testsuite/gna/issue777/testsuite.sh b/testsuite/gna/issue777/testsuite.sh
new file mode 100755
index 000000000..701ba40ea
--- /dev/null
+++ b/testsuite/gna/issue777/testsuite.sh
@@ -0,0 +1,13 @@
+#! /bin/sh
+
+. ../../testenv.sh
+
+$GHDL -i tb.vhdl a.vhdl
+if $GHDL -c -e tb; then
+  echo "failure expected"
+  exit 1;
+fi
+
+clean
+
+echo "Test successful"